CVC anti-static flame retardant fabric

CVC flame-retardant antistatic fabric, this kind of fabrics not only have the flame retardant performance, because inside the fabric woven into the fabric direction has the electric conductivity of carbon fiber, and thus make it have the permanent antistatic performance, and the two functions each other, can achieve their objective function.

Flame retardant performance can meet eu EN11612 (the original EN531), EN11611 (original EN470-1), EN533; American NFPA2112, ASTM standards, etc. Performance can reach the standard EN1149 anti-static cloth. Anti-static fabric with metal conductive fiber or composite conductive fiber and fabric woven blended by the special craft. Because internal conductive fiber woven into the fabric and fabric to form an organic whole, so that it has a lasting and efficient, not for their daily washing, or friction attenuation of the permanent antistatic performance.

Conductive fibers in both metal fibre composite conductive fiber white silk, grey wire, black wire are all adopt imported high performance conductive filament. Products are blended type, mixed type, strip type (such as stripe, grid).

Using this kind of fabrics made of protective clothing can effectively avoid the accumulation of the charge the charge discharge in a timely manner or leakage, explosion accidents, so as to avoid is petrochemical, coal, war industry, precision instruments, aerospace and other fields. Anti-static fabric performance of product can reach GB12014 anti-static overalls, GB12703 "anti-static fabric, such as, EN1149 EN1149-1-3 standard.

Acrylic cotton flame retardant fabric

Polyacrylonitrile fiber acrylic cotton flame retardant fabric consists of a performance itself has made. When modacrylic with cotton or other cellulose fibers, it is possible to achieve a limiting oxygen index (LOI) 28 to 32. Outstanding flame retardant fabric does not decrease with time and washing times.

Production of acrylic cotton fabrics for industrial and fire retardant protective clothing multifunctional needs, and has passed the petrochemical, electricity or gas industry and other sectors of the test. Performance testing authority by MTL, TUV, SGS, meet EN11612 (original EN531), EN11611 (former EN470-1), EN533, 16CFR, NFPA2112, ASTM and other standards.

Acrylic cotton features:
1 excellent flame retardant properties
2 Arc
3 anti-acid
4 splash proof metal shavings
5 Anti welding sparks
6. Antistatic properties
7 visibility performance
8 superior comfort and washing performance
9 excellent mechanical and wear resistance

Acrylic cotton flame retardant fabric

Polyacrylonitrile fiber acrylic cotton flame retardant fabric consists of a performance itself has made. When modacrylic with cotton or other cellulose fibers, it is possible to achieve a limiting oxygen index (LOI) 28 to 32. Outstanding flame retardant fabric does not decrease with time and washing times.

Production of acrylic cotton fabrics for industrial and fire retardant protective clothing multifunctional needs, and has passed the petrochemical, electricity or gas industry and other sectors of the test. Performance testing authority by MTL, TUV, SGS, meet EN11612 (original EN531), EN11611 (former EN470-1), EN533, 16CFR, NFPA2112, ASTM and other standards.

Acrylic cotton features:
1 excellent flame retardant properties
2 Arc
3 anti-acid
4 splash proof metal shavings
5 Anti welding sparks
6. Antistatic properties
7 visibility performance
8 superior comfort and washing performance
9 excellent mechanical and wear resistance

Flame retardant fiber production process

There are fire-retardant fiber manufacturing coating, blending , and graft copolymerization modification method and core-sheath composite spinning method . Coating method is a fiber made ??of a flame retardant used in the production process or its physical adsorption or chemical binding , the flame attached to the flame retardant fabric to achieve the purpose of the method . However, moisture can lead to physical adsorption , toxicity and other issues, it will cause fabrics chemisorption strength decreased , feel hard and other defects. And this fire-retardant treatment method limited scope depends on the skills and finishing plant , the treatment effect instability, poor durability . This method is generally used for natural fiber fabrics and synthetic blended fabric with flame processing, can also be used for pure polyester , polyacrylonitrile fabric processing , but the application is not common. Blending the spinning slice that is added during the manufacturing process or the flame retardant was added to a melt spinning method to obtain flame retardant fiber . To produce a flame retardant polypropylene fiber , the addition of flame retardants , there are two methods : ① Full Granulation : the polypropylene , flame retardants , stabilizers were blended , and extrusion granulation . Pellets with this spinning , flame retardant properties can be obtained with polypropylene fibers. ② masterbatch method: flame retardants, carrier , stabilizer were blended granulation, which is masterbatch pellets . Spinning , the polypropylene masterbatch certain proportion slices mixed, and spun to obtain a flame retardant polypropylene fiber . This method uses the more common , reducing the spinning temperature , to improve the spinnability of the polypropylene , the yarn strength, elongation qualities such little effect . Copolymerization polymer that is added during polymerization of the monomer in a flame retardant obtained by copolymerizing a molecular chain containing fire retardant chemicals unit slice spinning method . Modified polymers using this method , durable flame retardancy . This method is mainly used for addition polymerization type ( polyacrylonitrile ) and polycondensation type ( polyester, polyamide ) . Graft modification method is to use radiant heat , high-energy electron beam or chemical initiator of the fiber and flame retardant monomer graft copolymerization, to obtain effective and lasting flame retardant modified method . Fire retardant and flame retardant modified fiber grafting monomer graft copolymerization retardant elements and relevant parts . The flame-retardant sheath-core composite spinning method for modifying the application is not common , primarily because of the need complicated spinning apparatus . In recent years, composite flame retardant polyester fiber spinning method , the use of skin - core structure , that is, or add a flame retardant copolymer polyester core common polyester composite spun from the cortex . This is to prevent premature decomposition of halogenated flame retardants affect hydrogen halide leave the flame retardant effect, and also prevents certain shortcomings of phosphorus flame retardants are not high temperature , but also to maintain the original appearance of the fibers , whiteness and dyeability .

Anti-static clothing production process and the cleaning process

Antistatic coveralls antistatic function can be divided by vertical bars and squares two kinds . antistatic fabric coveralls divided into a variety of styles , our company can according to customer needs ; anti-static coveralls press cloth points: 100D and 75D, 68D. During 100D more commonly used . Anti-static coveralls by color : You can have a variety of options , specific to our fabric version is based . During longer see the white and blue . My company produces anti- static clothing, use a dedicated anti-static clean fabric production. This selection of special polyester filament fabrics , warp or weft woven inlay Japanese Kanebo Belltron9R series of conductive fibers . An efficient, permanent anti-static , dust-proof function, thin slip , textured clear characteristics. The process used in the production of garments sewing machine dedicated package , useful, reduce particulate attack. Clean Velcro prevents hair loss due to environmental pollution . According level needed to supply different styles and use conductive fibers sewn to make clothing a somewhat adhere electrical continuity ; sleeves and pants for the unique bi-level programming , the use of conductive or antistatic inner rib, then meet the high-grade dust-free environment needs.

Made of high quality polyester continuous fiber fabrics, both senior clean clothes of particular needs . ( Dust resistance, filtration, comfort, durability , adhesion is difficult , easy to wear resistance )
Imports of high-quality conductive wire to ensure excellent anti -static function commodities .
Special polyester filament thread sewing machines, sewing techniques and technologies together .
Be the first to import cleaning equipment, 10 , 100 clean room to be able to supply customers require the most severe effect .
Preemptive testing equipment and methods , severe quality processing system to ensure that every product has high quality .
Barcode processing system to track the use of clothes situation .
Supply of cleaning work clothes with effect applied to various levels of clean room .

How to buy a real anti-static clothing

Usual antistatic fabric , there will be black conductive wire, but there are true and false , because the high cost of anti-static cloth , some markets will use the usual polyester fabric printing black line , and then soaked in anti-static solution, the cloth has a certain period of time antistatic effect.
About a lot of procurement , the procurement of high quality anti-static clothing , is a vexing problem . First, I do not know how to detect its anti-static clothing , the second is to pick up a anti-static clothing , in the acquisition of the division of qualified, but with some time, only to find that their products do not have the anti-static function, and normally there is no difference of goods . Take anti-static work clothes , in the time of purchase , point to point resistance measurement device to reach the national standard, however , clothes washing several times in the future , its point resistance measurement , it was found , is now inconsistent with national anti-static service testing specifications. The main problem is that, in the purchase of this anti-static clothing after midnight, this fabric has anti-static clothing with antistatic agents disseminated over , so whatever point resistance tests can reach national norms.
Detailed distinction , you can wash the cloth , wash a few times , if it is false, it is not washed off antistatic liquid antistatic , if it is electrically conductive wire , the role is probably the same, detailed parameters are usually is the appearance of resistance 10 ^ 6 - 10 ^ 9 ohms.
So when in the acquisition of goods , reminds us that the quality of goods is vital, not only to offer goods cheaper Fig . Quotations are not crucial , the key lies in the quality of goods is not reached to prevent static.

Meaning for living a healthy functional fabrics with numerous presentations

Nowadays , people live and work in environmental conditions with greater attention , which is closely related to their own health and the factors . In order to better these changing environmental conditions in the fabric knitted product development has gradually set off a bigger waves. Good no doubt , many of the fabric products in people's lives occupy a large proportion , but also provide an important factor in the quality of life ah . With the ongoing revolution in the fiber on the market gradually appear more functional fabric , these products have gradually become the mainstream choice.

For those applications frequently functional fabrics , they are reflected in common with certain health functions , such as bamboo fiber is a typical representative , it has absorbent, anti-bacterial and anti-bacterial effect. In addition , a common functional fabrics respective functional difference is relatively large , such as anti-static fabric, u.v fabric , flame retardant fabric , etc., these products can adapt to many other industries application needs , with some for sex .

Therefore , the majority of consumers can be selected according to their preferences , which is also an important safeguard healthy living .

Retardant fabric in the end What are the different types of it

As a common type of functional fabrics , flame retardant fabrics for applications that people are more familiar with , and its applicable scope is relatively large . In technology innovation , this type of fabric types has also been greatly enriched , can be said to have given consumers a wider choice , and different functional properties of flame-retardant fabric itself is somewhat different. At this point, may wish to carry out different types of flame retardant fabrics specific description:

1 Disposable Flame retardant fabric

This type of flame retardant products counted on an early prototype of its own technical requirements are not high, but the biggest feature is the manufacturing costs are lower, which is widely distributed a product that is the flagship of the fabric type. In its promotion process should be noted that , because of its use of flame retardants are not washable and corresponding security risks there is a certain relationship between the value of its use has been some weakening in the fire-retardant fabric products enrich the trend also gradually have been replaced posture.

2 durable flame retardant cotton fabric

Anytime , cotton fabric products are on the market mainstream choice , mainly because of its comfortable wearing enjoyment , and such protection fabric flame retardant fabric in the realization of the original characteristics of the case but also to bring people to a more pleasant wearing experience , can be described as very good . In addition , because of its non-toxic odor characteristics make security is relatively assured.

3 modified polyester permanent flame retardant fabrics

After this kind of special fabrics retardant modified not only has good elastic recovery , and flame retardant properties are permanent , so its value is very high . However , because of its relationship with electrostatic prone also to some extent limit their development prospects.

How waterproof fabric water repellent

1 , Young's equation
Drop of liquid droplets on a solid surface , assuming ideal platform for this surface , the droplet gravity concentrated at one point, and ignore the amount of wilderness . Since the surface tension of the fiber fabric (Ys), liquid surface tension (YL) , and the interfacial tension has firmware (YLS) result of the interaction , the droplet will form a variety of shapes ( cylindrical to fully from paving ) . In addition to the night to go completely flat , the droplets on a solid surface in equilibrium , A point received scattered by gravity . [ 1 ]
Angle is called contact angle 0 , if 0 = 00, the droplets on a solid surface puping cotton , which is the solid surface is wet wild limit state ; when 0 = 1800 , the droplet is cylindrical , which is a ideal non-wetting behavior . In the water repellent finishing , the surface tension of the droplet can be considered constant. Therefore, whether wild wet the solid surface , and solid surface to have in the bank leaves late Relay tension . From the said requirements , the contact angle 0 more conducive droplets rolling loss , ie the smaller the better .

2 , fabric adhesive power
Since Ys and YLS virtually can not be measured directly, so usually the contact angle of 0 or cos0 directly assessed degree of wetting . But not wetting contact angle Yuan Ying , and actual results so some people have expressed station workman also a relationship between the interaction , and the degree of wetting parameters.
Indicates station humble workers YL and cos0 can all be measured , so style has practical meaning. Similarly, the point of the interface area of ??the owner of the two divided bits required when the owners committee 2YL, may be called the liquid within the bow. From the above equation , the station workman increases , the contact angle decreases , really equal cohesive consensus workman , the contact angle is zero , which is a liquid on a solid surface is completely paved , as cos0 not more than 1 , so that even stations Zhuo workers than 2YL, the contact angle remains fixed . WSL = YL, then 0 to 900 . When the contact angle is 180 ° , WSL = O, shows no viscosity between liquid and solid cloud effect , however, much less since there are some points hatchback Zhuo effect, so the contact angle of 180 ° is equal to the situation never found , too much can myopia get some circumstances, such as 160 ° or larger angles.

3 , the critical surface tension of the Waterproof Fabric
Almost since the solid surface tension can not be measured , in order to understand the wettability of the solid surface , he was the critical surface tension was measured . Although not directly critical surface tension that the surface tension of the solid , but rather that the size of Ys-YLS , it makes the wetting of the solid surface is the difficulty . However, it should
Note that the determination of the critical surface tension is a rule of thumb , and the measurement range is very narrow .
In addition to cellulose , other substances are critical surface tension of the surface tension of small taxes , so they have a certain water repellency, the largest of which eleven CF3 , a CH a minimum . Obviously, the larger the contact has a smaller delivery Desks critical surface tension of the material finishing agent who can have access to better water repellent effect .

UV Color of fabric

Production of each dye fabric UV absorption properties of UVR varies due to structural , fabric UPF values ??can produce different effects . In order to obtain visible color , dye must absorb visible radiation to selectively (400 ~ 800nm), all the dye carrier extends to UVR absorbing region of the spectrum (280 ~ 400nm), thus UVR absorber dye can play the role of a potential absorption harmful UVR rays. Dyes UVR spectral region sorrow less coefficient UPF fabric will determine its ability to improve .

  About dyed fabric for UPF numerous studies on the impact that the ratio of dyed fabrics dyed fabrics have a high UPF value , and with the deepening of the fabric color , fabric UV transmittance decreases , ie, u.v fabric radiation performance improvement . Polyester products made ??in conventional tests , the same type of the color to be ultraviolet radiation transmittance of the order from small to large : black transmittance of 5% , dark blue , red, dark green , violet transmittance of 5% ~ 10% , green, pink , light green, white transmittance of 15% to 20%. As the dye color is the dye molecular structure reflection absorption characteristics of the visible spectrum , only certain absorption spectra of dye molecules and chemical fibers extending light extinction process also affect the ultraviolet radiation transmission characteristic .

  The color of the dye is determined absorption characteristics in the visible region , and the absorption characteristics of the UV region has little effect on the color .

Retardant protective clothing trends

(A) First, the development of textile flammability standards currently has the following three aspects: internationalization and serialization, performance requirements and standards of comprehensiveness and multiplicity of the number and type of increase.
 Country and most of the world textile flame retardant fabric performance test methods are to international standards (ISO) * close, either directly using, some same or equivalent; in product standards is to develop in the direction of internationalization and serialization. Has been one step ahead of the fire department, fire protective clothing - Performance requirements and test methods, fire insulation services, fire avoid the fire service and fire chemical suits four series of products formed industry standards. Performance requirements in terms of comprehensiveness and multiple, flame retardant textile products in addition to the standard requirements, has applicability aspects of development, such as clothing fabrics are strong, breathable (wet), stiffness, shrinkage, color and toxicity requirements . In addition, depending on the use of the environment but also add special protective performance requirements, Welding clothing against molten metal droplets to increase the impact of the requirements of fire service to increase the resistance to radiation and water resistance requirements, petrochemical and coal use to increase antistatic protective clothing requirements.
 China has a flame retardant fabrics and products more than 100 enterprises, with an annual ten thousand meters retardant fabric thousands and millions of sets of clothing, applications have included metallurgy, chemical industry, petroleum, forestry, fire, electricity, coal, construction and transportation and other industries. In 1997, amendments to the three test methods and two product standards, along with standardized production to ensure product quality and the need for development of new products, textile flame retardant standard will rapidly increase in number and type.
(Two) flame retardant protective clothing developed strategies
1, starting from the fiber, improve performance, reduce costs

Using blended method. High-performance flame-retardant fiber and a variety of low prices flame retardant fibers or fiber composition, although the prices are still relatively high, but can to some extent compensate for the price of some high-performance fiber defects, after all, a cost reduction an effective way.
The molecular structure and the spinning process to make improvements. Use more common in developed countries, high-performance flame-retardant fiber fabrics, such as Nomex, PBI, than other flame-retardant fabric performance, but the price is expensive, difficult to a large area in the country to promote the use, if you can process improvement, cost reduction , it can be a good solution to this problem.
2, the full use of domestic conditions, the development of fire-retardant finishing process
 Focus on the development of sound and flame retardant finishing process improvements is to improve the performance of an important means of flame retardant textiles. Another focus of high-tech applications such as development of nano materials in recent years, new technologies have domestic the nanoparticles can be stably distributed in the polyester or other synthetic fiber spinning solution, and then spun having antibacterial, anti-UV , deodorant, deodorant, far infrared reflection absorption infrared function or synthetic fiber. In the dyeing and finishing is concerned, the use of coating, padding or exhaustion and other methods to make natural fibers or ordinary fiber also has a special feature. Through nanotechnology applied to textile finishing features, while maintaining the original texture and appearance of clothing, because of the application of nanomaterials to make a more uniform treatment of textiles and lasting effect.
3, to strengthen the structure of the fabric
A fabric's performance is closely tied to its structure. Retardant fabric structure (organization, density, yarn conditions, etc.) can affect many properties, in addition retardant, insulation, but also with tensile properties, flexural properties, crease flexibility, drape, rigid, moisture absorption, permeability and so on. Therefore, strengthening the structure of the fabric is comfortable flame retardant functional fabric developed an effective way. Northwest Institute of Textile Science developed as double retardant fabric, the fabric is to use changes in the structure, the outer layer of high strength, wear resistance, good flexibility flame retardant polyester, can guarantee the fabric stiff and does not wrinkle, beautiful appearance, durable and the inner select hygroscopic, put wet fast, soft and good cotton as raw material, and with organizational changes, both to meet the protective performance of flame-retardant protective clothing and wearability, comfort and can better meet their sex.

4, to strengthen cooperation in development:
 As technology advances, asking people at work and have good coordination ability of the flame-retardant protective clothing, it also requires cooperation, from the comfort retardant fiber research, fabric development, garment design and production and test work completed, is an integral continuous process, any one part of a problem or not well done, will affect the final quality of the product. For example, a flame retardant protective clothing fabrics, comfort is very good, but the costume design is unreasonable, this garment can not achieve the comfort of movement, resulting in action after firefighters put inconvenient, results in reduced efficiency of the firefighters, so retardant clothing can not be called is a good protective clothing, therefore, coordination and cooperation between the various departments to work together is necessary.

(Three) as a green design concepts into clothing began in the 1980s, and in February 1997, in Germany, the latest clothing exhibition, showcasing the first environmentally friendly clothing. According to expert analysis, environmental clothing specific meaning is through toxicology tests and have the appropriate logo apparel. These flags on the clothing of toxic and hazardous substances range limits is very wide, and very strict, from pH, color fastness, formaldehyde residues, carcinogenic dyes, toxic metals, halogenated dyeing carrier, a special smell and cause other chemical stimuli disease factors to flame retardant requirements, security, and other aspects of physical stimulation requirements. Therefore, the rational, conscious choice harmless to human health, chemicals, pigments, and the control of harmful substances in order to achieve natural and human, technical virtuous circle.

Different fabrics UV performance differences

Resistance of polyester fibers best performance, which is the molecular structure of benzene polyester fiber with a UV-absorbing effects. Nylon, cotton, silk UV resistance are not the best of man. So we choose to try to choose clothes UV thick fabrics containing polyester fiber. (Now some domestic polyester fiber fabric UV protection performance has reached a very high level).

Fabric closer the light barrier, the stronger, the less the amount of ultraviolet rays through. Woven fabrics UV performance is better than knitted fabrics. Clothing fabric darker smaller u.v fabric transmittance, UV performance is better.

Two kinds of fabric UV finishing process:

1, an ultraviolet absorber for the post treatment of the fabric to achieve the anti-ultraviolet function.

2, with the ceramic powder and fiber, to increase the surface of the reflection and scattering of UV, prevent ultraviolet damage to the skin through the fabric.

Anti-static clothing way to explain the proper use of

Anti-static products as people increase the level of awareness for the environment , is now widely used in various industrial production and a special role, Dongguan Shun Choi service is a professional anti-static anti-static clothing and other supplies core suppliers . So what in the company philosophy advocated , then Xiaobian now and we can discuss the next rehearsal anti-static clothing during use Precautions
Six anti-static precautions when using services

In our everyday use of anti-static clothing division is probably aware of the following

1 , Antistatic fabric clothing should adhere to clean , stick anti-static function , use with a soft brush, a soft cloth moistened with neutral detergent wash , no damage to the clothing material fibers.
2 , wear anti-static clothing , you should also support the use of the anti- static shoes , along with the ground should also be conductive flooring. Anti-static shoes
3 , wearing a period of time to deal with anti-static clothing for inspection, if the static function does not meet the specification requirements , you can not prevent the use of static factory service
4 , provided that in normal circumstances, explosive gas mixture successively , short or long frequently appear to exist before breaks and explosive gas mixtures are capable of rendering the place , the minimum point of the fuel energy 0.25 mJ , the following should wear anti-static clothing .
5 , wear off in explosive areas to stop anti-static clothing.
6 , anti-static clothing Suppression attach or wear any metal objects.

Basic introduction to fabric

Apparel made with fabric, Fire resistant fabric material is used to make clothing. As one of the three elements of clothing, fabric can not only interpret clothing style and features, but also directly about the clothing color, the shape of the performance results.
World in the clothing, the clothing fabrics varied, with each passing day. Generally speaking, however, high-quality, high-grade fabrics, mostly have comfortable, absorbent, breathable, keeps hanging, visual elegance, soft touch, and several other aspects of the characteristics.
Modern production in the formal social occasions wearing the clothing, more choice of high-quality blended fabrics. And cotton, wool, pure silk, hemp and other natural fabrics because it had easy to fold, easy to deform and other natural fabrics shortcomings, has become a general fabrics, less as a high-end clothing materials. aramid fabrics have a natural absorbent, breathable fabric, soft and comfortable characteristics, but also absorbed the strong durable synthetic fabric, hanging crisp, shiny bright colors, etc., every year a large number of high-quality blended fabrics have been developed. Sometimes, wearing clothing made of pure leather, is also permitted.
General fabric into two series:
Woven Fabric: mainly used for clothing coat and shirt.
Knitted Fabric: mainly used for clothing underwear and sports clothing line, but due to the development of technology, but also to the heavy knitted fabrics, crisp development, gradually make the externalization of knitted underwear, knitted fabrics woven practices become coat supplement.

Introduction retardant overalls features and fabrics

Retardant overalls ( welding protective clothing , fire fighting service ) refers to flame or heat sources to prevent itself after being ignited, flaming combustion and smoldering protective clothing.

Retardant overalls for engaging in a fire , emitting sparks, molten metal operations and in the vicinity of flammable substances, and hazardous workplace angry when wearing. Widely used in oil , petrochemical , gas stations , chemical, fire , etc. There are a variety of clothing protection requirements of the occasion. Retardant overalls should be consistent with GB 8965.1-2009 " protective clothing flame retardant protection - Part 1 : Flame retardant clothing ", GA 10-2002 " Fire fighting protective clothing ", GA 634-2006 " firefighter thermal protective clothing ", LFY -607A thermal Protective Performance tester .

Retardant overalls by choice of flame retardant fabric can be divided into : Flame retardant cotton protective clothing , fire retardant synthetic fiber protective clothing, high temperature flame retardant protective clothing, protective clothing cotton flame retardant aluminum , insulated protective clothing , according to the specific job environment and requirements of different customers to choose and is equipped with:

First, the general can ask Optional: flame retardant cotton fabric , CVC flame retardant fabric ;

Second, the choice of mid-range requirements : C / N Cotton Nylon Fabric , clear flame retardant cotton fabric ;

Third, the high-grade Flame resistant overalls requirements Optional: flame retardant aramid fabric , aramid 3A retardant fabric ;

Fourth, there are more requirements of different industries : oil-and waterproof flame retardant fabric , flame retardant fabric anti-static , flame retardant fabrics, such as anti-arc .

The choice of fabrics and flame-retardant overalls can meet the standards to protect workers first time to evacuate combustion -site or off his burning clothes, reduce or avoid scald burns , to achieve the purpose of protection .

How waterproof fabric water repellent

1 , Young's equation
Drop of liquid droplets on a solid surface , assuming ideal platform for this surface , the droplet gravity concentrated at one point, and ignore the amount of wilderness . Since the surface tension of the fiber fabric (Ys), liquid surface tension (YL) , and the interfacial tension has firmware (YLS) result of the interaction , the droplet will form a variety of shapes ( cylindrical to fully from paving ) . In addition to the night to go completely flat , the droplets on a solid surface in equilibrium , A point received scattered by gravity . [ 1 ]
Angle is called contact angle 0 , if 0 = 00, the droplets on a solid surface puping cotton , which is the solid surface is wet wild limit state ; when 0 = 1800 , the droplet is cylindrical , which is a ideal non-wetting behavior . In the water repellent finishing , the surface tension of the droplet can be considered constant. Therefore, whether wild wet the solid surface , and solid surface to have in the bank leaves late Relay tension . From the said requirements , the contact angle 0 more conducive droplets rolling loss , ie the smaller the better .

2 , fabric adhesive power
Since Ys and YLS virtually can not be measured directly, so usually the contact angle of 0 or cos0 directly assessed degree of wetting . But not wetting contact angle Yuan Ying , and actual results so some people have expressed station workman also a relationship between the interaction , and the degree of wetting parameters.
Indicates station humble workers YL and cos0 can all be measured , so style has practical meaning. Similarly, the point of the interface area of ​​the owner of the two divided bits required when the owners committee 2YL, may be called the liquid within the bow. From the above equation , the station workman increases , the contact angle decreases , really equal cohesive consensus workman , the contact angle is zero , which is a liquid on a solid surface is completely paved , as cos0 not more than 1 , so that even stations Zhuo workers than 2YL, the contact angle remains fixed . WSL = YL, then 0 to 900 . When the contact angle is 180 ° , WSL = O, shows no viscosity between liquid and solid cloud effect , however, much less since there are some points hatchback Zhuo effect, so the contact angle of 180 ° is equal to the situation never found , too much can myopia get some circumstances, such as 160 ° or larger angles.

3 , the critical surface tension of the Waterproof Fabric
Almost since the solid surface tension can not be measured , in order to understand the wettability of the solid surface , he was the critical surface tension was measured . Although not directly critical surface tension that the surface tension of the solid , but rather that the size of Ys-YLS , it makes the wetting of the solid surface is the difficulty . However, it should
Note that the determination of the critical surface tension is a rule of thumb , and the measurement range is very narrow .
In addition to cellulose , other substances are critical surface tension of the surface tension of small taxes , so they have a certain water repellency, the largest of which eleven CF3 , a CH a minimum . Obviously, the larger the contact has a smaller delivery Desks critical surface tension of the material finishing agent who can have access to better water repellent effect .

Classification by type of flame retardant compounds

( 1 ) inorganic Flame retardant fabric : inorganic flame retardant main role is endothermic , the main varieties of aluminum hydroxide, magnesium hydroxide , red phosphorus , antimony oxide , molybdenum oxide , ammonium molybdate , zinc borate , zinc oxide , zirconium oxide, hydroxide, zirconium, etc. , in which aluminum hydroxide , magnesium hydroxide, red phosphorus , antimony oxide, the most widely used , in particular aluminum hydroxide, magnesium hydroxide can not only play a flame retardant , and can play the role of filling . They have good thermal stability , high efficiency , smoke suppression , resistance drops, fill safe, environmentally clean and cheap and other basic characteristics of the flame retardant material has been widely used . However, poor washability inorganic flame retardants , inorganic flame retardant because with strong hydrophilic polar , non- polar fabric with poor compatibility . Meanwhile, in order to achieve the required flame retardant , a large amount of inorganic flame retardant added , the mechanical properties of materials and processing performance impact . Therefore, the conventional ultrafine inorganic flame retardants and nano research in recent years has been unprecedented attention. In addition, to reduce the effect of the same flame retardant amount of a flame retardant compound , flame retardant research synergies , but also flame retardant research direction in recent years .

( 2 ) organic flame : organic phosphorus-based flame retardants and halogen is divided into two series . The former use is very restricted. Halogen includes chlorine and bromine flame retardants two categories. However, chlorine-based flame retardants brominated flame retardants to be better than the poor , and this is difficult to produce because of the reason of free chlorine group . In addition, as bromide, corrosive and toxic thermal decomposition is relatively small , and therefore the small amount of chloride can be achieved using the same flame-retardant effect . Therefore, use of brominated flame retardants much more common . However, the use of the total situation, halogen flame retardant due to its decomposition products containing halogen acid , smoke big , harmful , etc, are gradually being replaced by other inorganic flame retardants .

Flame retardant textile multifunctional composite fabric finishing production process

Textile flame retardant properties, three methods can be obtained . One is for flame-retardant treatment of textiles , to reach the fire retardant purposes, but the flame retardancy and washing with time gradually increase the number of weakened or disappeared. For cotton, linen, wool and other natural fibers , can only be used after finishing methods, namely by adsorption deposition, chemical bonding , van der Waals forces and non-polar bonding and so on. Another method is the direct production of flame retardant fibers , textiles made from such fibers having a permanent flame retardancy. Polyester , polyvinyl alcohol and other synthetic fibers they use this method. The third method is based on the actual needs of the production , effectively combine these two methods produce flame-retardant textiles. In addition to considering its flame retardant fabric , but also take into account the toxicity of flame retardant products and melt , so as to minimize the human and environmental damage.

Antistatic fabric flame retardant mechanism analysis

Antistatic fabric washing resistance mechanism molecular structure of the antistatic agent and the hydrophilic portion of the washability antistatic components for polyester fabrics processed with the hydrophilic portion derived from polyether segments , some sources washability the polyester segments and the entire polymer film. Polyester chain segment and the same molecular structure of polyester , heat treatment eutectic containing the fibers , so that greatly improved washability . The longer molecular chain , the greater the relative molecular mass , washability better. Plastic products for the use of internal addition method , as long as the hydrophilic and lipophilic groups in two parts with suitable , such as anti-static additives for plastic to maintain a certain compatibility, but also adsorption of moisture in the air , play antistatic effect. In other words , this ionic antistatic agent is not uniformly distributed inside the resin , the surface concentration is high , the internal low concentration . Antistatic effect mainly depends on the distribution of the resin surface monolayer . UV fabric with resin and curing the anti-static additives , antistatic agents are hydrophilic group are arranged toward the air side , the air moisture is adsorbed hydrophilic monomolecular conductive layer . When the friction and washing, the antistatic resin surface causes defects monolayer , the antistatic performance is reduced , since the resin molecules inside to keep the antistatic agent migrate to the surface , the surface defects in the monolayer can be added from the inside .
Antistatic properties length of time required for recovery , depending on the molecular antistatic migration velocity in the resin and an antistatic agent to be added , and the migration speed of the antistatic agent and the resin has a glass transition temperature , an antistatic agent with the resin the compatibility and antistatic agent relative molecular mass of size. In fact synthetic fabrics, plastic products have a certain insulation, any insulating material, there are two ways static leakage , a surface of an insulator , and the other is an insulator inside . Surface resistance of the former and the latter with the resistance of the body . For plastics and fabric lining , electrostatic most leaking from the surface , experiments confirmed that a similar rule also applies for the insulator .
Flame retardant mechanism of action of the mechanism is more complex, but nothing more so through chemical and physical means to achieve the purpose of cutting off the combustion cycle . Multifunctional composite fabric flame retardant plastics and synthetic fabrics in the combustion , with the carbon chain react violently with oxygen , on the one hand produces volatile organic combustible substances, but also generated a lot of very reactive hydroxyl radical HO. Free radical chain reactions that flame continue. Bromine -containing compound and antimony oxide flame retardants and peroxide radical initiator under the influence of heat promotes the generation of bromine radicals generated antimony bromide , which is a highly volatile gaseous material , not only to rapidly absorb discharged out of combustible material , dilute the concentration of flammable substances , but can also capture HO radicals and prevent combustion , retardant fabric to achieve better results.

Anti-static clean fabric must have the following three characteristics

fabric itself is not dust : because it is dressed in a clean room , thus requiring cleanroom fabric can not be the source of the dust , which determines oil resistant and waterproof fabric clean synthetic fabrics can only be used to produce long fibers . The linen, cotton , silk and other natural fibers can not be applied to short- clean fabric, although these materials can make the taking of the better fabrics . Also requires the choice of synthetic filament must strictly control the amount of dust . In general, since the production of polyester matting agent added - titanium dioxide is a source of contamination . Dull polyester filament is not suitable for anti-static clean fabric weave .

   2 fabrics have good dust resistance: clean indoor dust flowing mainly from indoor air and indoor activities in the human body . When the device condition is determined, that is, to improve cleanliness requirements to maximize the body produces tiny dust control in the clothes inside , let it pass through the fabric into the air. Antibacterial deodorizing fabric which is called the fabric dust rate is higher . Dust rate increase at the expense of breathable fabric for the price, knitted fabrics and therefore comparatively loose weave woven fabric is not applicable to the clean room .

     3 with anti-static function : Static electricity can attract dust , and to dust adsorbed at air shower is not easy to be blown away . Therefore, the primary anti-static clean fabric characterized as having anti-static properties. antistatic fabric same time, this anti-static properties must be persistent and efficient , not because of the daily washing and friction and significant decline

Retardant fabric textile tradition traditional anti-static anti- static methods

Flame retardant fabric textile tradition traditional methods antistatic antistatic processing methods are: use of antistatic fiber . Antistatic fiber has a high moisture absorption and moisture regain balance , capable of adsorbing water molecules in the air , that has good antistatic properties of textiles , which is not easy to generate static electricity , the static electricity generated on the already relatively easy escape . Applying antistatic agent. Mechanism with antistatic antistatic fiber . Stainless steel fibers . The use of metal fibers have good conductive properties make the static charge generated easily escape . UV fabric woven or organic conductive filaments embedded organic conductive staple fibers . Antistatic mechanism and stainless steel and other metal conductive fibers , similar to that played easily lead the charge dissipation effect. The organic conductive fiber , the flame retardant grade not only the conductive carbon material used Gray , but also to a metal oxide , a metal carbide conductive materials near white white or organic conductive fibers. Antistatic new technology has emerged in recent years, and the promotion of two conductive fibers can be used in textile antistatic processing . ) Silver fibers or filaments. Multi retardant composite fabric of the silver fiber has a good antibacterial effect and conductivity, and therefore contain less silver textile fibers ( about 1% ) when there is anti-bacterial and good antistatic function , if the fiber used in the silver so that in the fabric to form a conductive network structure and that this structure is relatively dense , but also has excellent electromagnetic shielding effect . For antistatic function , the conductivity of the silver fibers is good , electrostatic charge dissipation ability of the organic conductive fiber , so in general , better than the organic conductive antistatic fibers.
) Conductive polymer materials. Such as polyaniline , polypyrrole , polythiophene . These conductive polymers in recent years began to enter the engineering applications . Now conducting polymer fibers or coatings could be made , it has a lower resistivity can be used as a textile antistatic processing new materials .

Cotton flame retardant fabric principle

After immersion liquid ran over retardant fabric , flame retardant fabric formed Thalidomide shrinking body penetrate into the fibers and the gap in the amorphous region , followed by the NH3 Ammonia shrinking in the body of the pre- crosslinking by methylation in formed inside the flame-retardant polymer fibers after oxidation to stabilize .Phosphorus-containing compound so that the fibers produced during the pyrolysis dehydration reaction .
Phosphorus-containing flame retardant in the fiber pyrolysis temperature range is first broken down into non-volatile phosphoric acid or polyphosphoric acid and fiber drunk by group (-OH) dehydration reaction , the fibers charring. Ran over the flame retardant fabric soaked Ammonia process , since the cellulose phosphate formed inside dioxide / nitrogen highly crosslinked polymer , generating the PN synergy. PN bond performance ( polar ) PO bond is higher than that of phosphorus compounds react with -OH enhance performance , so generating a flame retardant properties.
The so-called " flame retardant " does not mean the fabric is treated with a flame retardant finishing after the fire is not burning properties , but to make fabric flame reduce its flammability, combustion and lower part of the area to reduce its burn rate . Be stopped after leaving the flame burning, self-extinguishing performance.

Retardant textile products taking performance and structural design problems

Retardant textile products taking performance and structural design stays in ordinary clothes levels. Although in both the fire protection performance and wearing comfort and appearance is indeed there are some technical difficulties, but in the designer's design philosophy is focused on the flame-retardant effect , there is no emphasis on comfort, clothing structure determined by the ease of use, and appearance . In fact, any one flame retardant fabric clothing , in its lifetime , the real opportunity to experience high-temperature flame is not much , but if you wear uncomfortable protective clothing, fire retardant , the user will choose not to wear , this time will cause in the event of a fire , they lost the protective role ; if we adopt coercive measures allow operators to wear uncomfortable protective clothing, will result in reduced efficiency , as well as the operator free to change the way they dress to meet the manager , and in fact still does not play the necessary protective effect. In addition , for some there is the possibility of a non- high-temperature flame encounter frontline workers ( such as department managers ) , but also need to have close to being installed in appearance , both in performance and comfort retardant clothing, in the office and workshop two kinds of workplace may wear used clothing. This fabric obstacles to the implementation of self-protection to consumers ( such as the patient , mental retardation ) is also very necessary.

Antistatic Precautions wearing overalls

1 . Antistatic overalls must GB4385 prescribed anti-static shoes matching wearing.
 2 . antistatic fabric clothing is prohibited to attach or wear any metal objects . Need to carry tools should have anti- static, anti- spark function ; Metal tools should be placed in anti-static overalls Obi is prohibited exposed metal parts .
 3 . Prohibited in flammable and explosive places anti-static overalls to wear off .
 4 . Strong electromagnetic environment in or near high voltage bare areas , can not wear anti- static clothing.

Learn about the types of fireproof

GBF Basalt fiber fire proof fabric is a series of 7 ~ 9μm basalt fiber spun yarn weaving , in which there are plain weave fabric and satin cloth, etc. , the high temperature, non-toxic coating disposed of. It is used as a lining to avoid the fire protective clothing , fire retardant , heat insulation and fire curtain fabrics best fire information . Because of its non-flammable , high temperature , non- toxic gas emissions , thermal insulation , and no melting or dripping , high strength , non- shrinking appearance and other advantages , and thus , it Kavlar, Nomex, Teflon and other strong aramid fibers instead of fire product.

Fireproof product application : suitable for shipbuilding, large steel and electricity on-site repair of welding, gas cutting protective equipment textile, chemical, metallurgy , theaters , military and other ventilation and fire protection products . Fire helmet , neck guard fabrics. Basalt fiber fireproof non-combustible materials, at 1000 ℃ flame effects , no distortion, no burst of fire in one hour or more. In moist, vapors, fumes , gases containing chemical environment play a protective effect. Also applies to the refuge fire service, fire separation curtains, fire blankets , fire package , welding, fireproof walls and so on. Acrylic fiber fireproof modify this section is optional special acrylic fiber fireproof fabric fiber technology pack

Material: made ​​of special fireproof fabric specially processed.

Features: extinguish the fire source , to avoid sparks splashing.

Use: can be placed in the kitchen , living room, bedroom, hospital , hotel and other occasions to prepare for imminent extinguish the fire source, the use of agile escape ; and used for welding , cutting and other flammable items around the construction site of its cover-up blocking other modifications to this paragraph type fireproof

NOMEX fireproof : The main product has permanent anti -static fabrics ; Full Channel electromagnetic shielding fabric ; temperature 200c-1200c fireproof cloth , carpets, curtains , paper items ; SM Fireproof : fireproof high temperatures. Welding gear available to spend , do the fire was , soft and hard pipe insulation, heater cover , etc. from the fire insulation effect ;

Blue fiberglass fireproof : blue fiberglass fireproof , fire shutter embellishment for use . Temperature fire ; fireproof aluminum foil : Aluminum foil fireproof fireproof fabric has the usual features , there are anti- radiation effect . Temperature 350.550.1050 .

Why is fire retardant fabric fire retardant

fire proof fabric , also commonly known as fire-retardant fabric is a textile fabric is more fire-resistant than other ordinary number . The reason why is because the fabric fireproof fire through its fiber or chemical finishing , because some fibers are specialized refractory .
    Important to note is the " fire " and " flame " means " fire " Despite these fabrics burning rate than other fabrics have a slow process , but it is still able to burn up . In addition, if they are exposed to a sufficiently long period of time, such as fire and high temperature is also likely to be damaged . The purpose of these fabrics is to reduce the spread of fire , the fabric itself does not save .
    Flame Retardant Fabric can use natural fibers to create fabric fireproof fabric . Cotton , for example , you can use a chemical substance , reducing its flammability. With the fabric , tar and gases naturally occurring chemical reaction , is applied topically to reduce the flammability of the fabric . Of course, these tar and gas chemical reactions , which can cause the fabric char , rather than burn.

Antistatic overalls structure, washing, transport

Antistatic overalls Washing:

Antistatic overalls best use neutral detergent, do not wash with other clothing shuffling, using hand or washing machine soft wash program, in order to avoid conductive fiber breakage. Wash water temperature should be below 40 ℃, rinse with water at room temperature. Washing time as short as possible, but must be rinsed thoroughly to remove residual detergent. Both flame retardant, anti-static overalls oil performance, do not use bleach, organic solvents decontamination.

Antistatic overalls Transportation:
In transit should be noted that the above must have anti-static overalls covering not damage the packaging, to prevent the sun and exposure to high temperatures; handling process strictly prohibited to use crochet drag.

Antistatic overalls should be stored in dry and ventilated warehouse, to prevent spoilage or deterioration. Storage, more than 200mm off the ground and walls, leaving everything to heat more than 1m. Avoid direct sunlight, non-open place.

Antistatic knitted wool packing, storage to be added the right amount of decay agent.


Antistatic overalls structure:
Clothing production structure that directly affect their anti-static effect, therefore, antistatic fabric overalls design must ensure that:
1. Do not use metal garment accessories in general, you must use metal buttons, zippers, should strictly ensure that when wearing metal accessories are not directly exposed to avoid discharge sparks, fire, explosion.
2. All clothing should use anti-static fabric, do not use lining. You must use the lining (pocket, reinforced cloth, etc.), the exposed area should be less than full lining anti-static clothing exposed area within less than 20%; winter clothes or other special requirements for anti-static clothing, lining exposed area within over all anti-static clothing exposed area of ​​20%, should be made of the mask with detachable lining.

How to identify qualified anti-static overalls

How to identify qualified antistatic fabric overalls - qualified anti-static overalls, each product must be marked with the manufacturer's name (or factory mark), site, product names, trademarks, shape specifications, product grade, date of production; per pack shall specify the number, the product name, model number, grade, production units, date of manufacture, together with the product instructions. Product specification level should be anti-static performance grades, A or B grade.

Implementation of the special labor protection supplies safety signs, requested in the apparent position of Gasch durable special labor protection supplies safety signs.

Antistatic overalls place primarily for fire and explosion hazards. The gas explosion hazard criteria of explosive substances by frequency of occurrence, duration and degree of risk is divided into:

0 Area: Under normal circumstances, an explosive gas mixture continuously, frequently appear short or long existing sites.

1 Area: Under normal circumstances, explosive gas mixtures are possible places.

Zone 2: Under normal circumstances, explosive gas mixtures can not occur only in abnormal circumstances arise occasionally place a short time.

Of a gas explosion hazardous areas zone 0, a region, and the minimum ignition energy of combustible materials in 0.25mJ less, shall be equipped with anti-static overalls. Common minimum ignition energy 0.25mJ a combustible hydrocarbon fuel alkoxy C, acrylonitrile, diethyl ether, hydrogen, carbon disulfide, furan, benzene, methanol. In the "labor protective equipment selection rules", the requirements of Class A01 explosive workplaces must be equipped with anti-static overalls; A02 class combustible dust job, you can use anti-static overalls. Also requires gas station operator, liquefied petroleum gas cans and similar types of workers, must be equipped with anti-static overalls.

General requirements for protective clothing and equipment

The role of labor protective equipment (PPE short), is the use of a certain shield, filter body, lace or a floating body, take deadening, sealing, absorption, dispersion, suspension and other means. Partial protection of persons from foreign body against. Therefore, protective equipment must be strictly quality assurance, be safe and reliable, and to wear comfortable and convenient, economical and durable, does not affect the work efficiency.
    Various types of labor protection products are associated with the lives and safety of workers and physical health is closely related to labor protection products in the design and production, should strictly abide by the following principles.
    ① PPE should wear comfortable, easy to operate, to meet the protection conditions, try to make it look beautiful and generous.
    ② labor supplies must be of high quality raw materials production, its quality must conform to national or local technical (product) standards.
    ③ labor supplies itself, without prejudice to the wearer's body organs on labor protection products to product quality indicators and technical conditions, the state established the relevant standard.
For special protective clothing, are yet to national technical (product) standards. Out of executing the corresponding local technical (product) standards.
    In the protective suits, the most common is the clothing against mechanical trauma, mainly from the shielding effect. National standards in the structural design as much as possible to avoid loose parts, and achieve the "three tight" (neckline tight, tight hem, cuffs or Kujiao tight) to twist scratch damage. Meanwhile, the required clothing fabrics must have a certain abrasion resistance, breaking strength and tear strength and other major mechanical properties. Clothing suture site can withstand a certain tension, tensile load imposed 29. 4N (3kgf), the suture site should be no off-line, break phenomenon. Protective clothing for special purposes, such as anti-static, anti-acid, fire-retardant and insulating clothing. In addition to meeting the above technical requirements, but also meet their special protection appropriate technology (product) standards.

High operating safety harness required

Helmets, safety belts (rope), high operating safety net is called "Sambo", to protect personal safety, has played an important role.
1. Helmet
Helmet is to avoid or reduce side from falling objects and flying objects on the head or cause harm to the individual protective equipment.
      Mainly by the cap shell helmet and cap liner composed of two parts, the material mostly plastic, rubber, metal and plant strips. National Standard GB 2811-1988 were provided. Before each use, be sure to check helmets for cracks, bumps or uneven marks, wear, etc.; using a helmet, be sure to wear positive; chinstrap must be fastened; Do not order in cap shell breathable casual openings are not free throw touch helmets.
      Helmets should not be placed in an acid, alkali and high temperature, sunlight and other places, but can not and hard objects together. Survived a strong impact of the helmet should be scrapped, can not continue to be used.
2. Seat belt (rope)
      protective suits effect of seat belts is through the worker's body harness binding on fixed object to prevent worker injuries caused by falling accidentally.
      Mainly by the band belts, ropes, metal parts of three parts. For ease of operation and long life, safety belt use materials with light weight, wear resistance, corrosion resistance, low water absorption and adaptation to wide range of temperature and other characteristics. China's current standards for safety belts with Nylon, vinylon, silk for rope. There are all kinds of metal accessories hooks, rings, clips, etc., generally use ordinary carbon steel and aluminum plate punching.
      Many different types of seat belts, according to the functions and attributes of classification, can be divided into job classes around the pole, hanging job classes, climbing job class three categories. By use classification, electricians, telecommunications engineering, aerial, scaffolders, railroad dispatcher seat belts and fire belts and so on.
Use seat belts must be careful, must be based on the intended use of different workers, choose a quality certificate.

     When used, should master the correct way: Should the level of tied hanging; hung low; seat belt before each use to make a visual inspection; use hooks, rings must be linked to prison, be sure to fasten the clip; safe With use, pay attention to the conservation and preservation.

3. Safety Net
     Safety net is used to prevent people from falling down or to avoid, mitigate against objects falling and injury nets.
      Safety nets generally mesh, side ropes, tethers, testing rope, rope tendons and other components. Safety nets can be divided into two types of flat screen and Legislative Network: Installation is not perpendicular to the horizontal plane of said flat net; mounting plane perpendicular to the horizontal plane, said Legislative Network.
     In the selection and use of safety nets, pay attention to the model selected and installed by a specially trained person. Safety nets installed, you must pass the inspection by security personnel before use, when used, should avoid the following phenomena: the net dragged over rough surfaces or sharp edges or under the net in the net accumulation of goods, people jump or heavy cast into the net, a lot of welding or other spark off the network, the network is surrounded by smoke and other serious acid.
      On the use of the safety net periodic inspection at least once a week, when subjected to greater impact, it is best to check or replace the network. Use online process must regularly clean litter, maintaining network face clean. Rope must ensure that the test is always worn in online and offline use, the test must be carried out every three months rope strength test. Do not remove the safety net. Safety nets must be kept by hand, release.

Retardant fabric textile safety knowledge

First, the color fastness

     Color fastness is good or bad , directly related to human health and safety , flame retardant fabric grade color fastness bad products while wearing process, encountered rain , sweat , and its fabric dyes or pigments may be dissolved in rain and sweat , then dye or pigment molecules and heavy metal ions are likely to be absorbed through the skin , will make people feel the clothes and body parts in contact itching, severe cases will play erythema, papules , etc., can cause contact dermatitis, thereby endangering human health of the skin , therefore , water stains , perspiration ( acid / alkaline ) , rubbing ( dry / wet ) this three color fastness and human use of textiles and clothing worn or directly related . For infant clothing, but also examine saliva fastness, because infants are sucking and chewing clothing or articles tendencies, and human saliva contains a variety of chemical substances may be on clothing or other items or other dyes peeling or decomposition of harmful substances , if the project failed would make dyes and heavy metal ions lead to harmful substances in the body through the mouth and into the infant , thereby causing harm to their health .
 Two , pH,

     Most consumers concerned about food - milk melamine content exceeded, fire-retardant composite fabric versatile living - bedroom decoration excessive levels of formaldehyde , the line - car exhaust exceeded, but few people think about every day and we are in close contact clothing and wear - there are residues of harmful substances . Consumers even if they know apparel formaldehyde content is limited, but does not think there will be pH clothing restrictions , there will be control of the pH indicator !

     We know that the pH is pH level of quantification that is used to indicate relative acidity . pH is 0 which means that the solution tends to be more acidic the contrary , tends to be more stronger alkaline solution 14 that , at room temperature , pH = "7 solution of a neutral solution . human skin was slightly acidic (pH value of the medium at between 5.5 and 6.5 ) to ensure the balance of resident bacteria to prevent the intrusion of pathogens . Similarly , also a pH value clothing , apparel slightly acidic and neutral pH value of the area in favor of the protection of the human body ; If the garment improper pH will cause the skin 's natural barrier surface destruction and stimulate the skin , bacteria, cause disease. accordance with the national mandatory standards "National safety Technical Code for textile Products " requirement , infant supplies (A class products ) and direct contact with the skin products (B products ) pH of 4.0 to 7.5, non- direct contact with the skin products (C products ) pH of 4.0 to 9.0 , according to my testing center testing data, there are pH values ​​up to 9.9 products .

     Why is there acid improper clothing it ? None of textiles in China before the pH value of the assessment indicators , companies do not give attention to this indicator . The clothing used in the dyeing and finishing fabrics need to use a variety of dyes and auxiliaries , if inadequate washing after dyeing and finishing factory for drying ; neutralize or failing to take certain measures ; late lack of appropriate means of detection, this is bound to caused by improper pH of textiles .

     How consumers against excessive pH value clothing against it ? Buy clothes, do not believe in "a look at two smell " the old way, because this way , pH value is exceeded is difficult to find , but to focus the color of clothing , style , texture, price , but also pay attention safety clothing ; possible to buy the regular manufacturers of products , and in the instructions for use annotation technical specifications consistent with national security products ; necessary request to the dealer test report to see if it meets the relevant provisions of the State ; for washable clothing, especially infants clothing before wearing soaking and rinsing , washing method can greatly improve clothing pH.

Retardant fabric finishing technology and progress

A wide variety of flame retardants , classification methods also have a variety . Retardant elements according contained classified into halogen-containing flame retardants, phosphorus-containing flame retardants, nitrogen-containing flame retardants ; according to the use of flame retardants and polymers in the presence of form, divided into additive and response type ; press were divided into non- durable flame retardant fabric flame retardant durable , semi-durable flame retardant , durable flame retardant three kinds ; according to types of compounds can be divided into organic and inorganic flame retardant agent. The following describes the method of classification according to the latter two flame retardants .

1.1 Classification according to durability of the fabric

( 1 ) Non- durable flame retardant : flame retardant , also known as temporary , most of the water-soluble ( or emulsion ) inorganic salts. When the first water-soluble flame retardant treatment , drying the impregnated fabric can be used ; also has two bath padding , and the second bath with ammonia or soda , the oxide is deposited on the fabric. This method is simple , cheap, but fabric feel poor, flame-retardant effect after washing fall significantly. Is used in disposable protective clothing .

( 2 ) semi-durable flame retardant : flame retardant fabric manufacturers use this process retardant textile processing capability of 1 to 10 times a mild detergent , but not high temperature soaping . The method has urea phosphate method ( usually called Banflam France ) , urinary phosphate ester method , ammonium a hydroxymethyl ammonium cyanide - A vinegar solution method .

( 3 ) durable flame retardant : inside the fiber by chemical polymerization or condensation reaction of the surface , to form a water-insoluble polymer , generally require more than 30 times washing level . The law mainly Ciba (CP) method and the Proban France . CP France by the Swiss company Ciba creation process is easy to implement the Act , flame-retardant effect is remarkable ; drawback is the larger fabric strength loss , a greater impact on performance apparel . Proban France Aube Lai Yiwei Wilson Limited by British creation, the Act of fabric finishing , flame-retardant effect is good , especially the treated fabric texture and strength retention is unmatched by any other finishing method , but this method is compared with the risk big , serious environmental pollution , thus promoting restricted.

2.2 Classification by type of flame retardant compounds

( 1 ) inorganic flame retardants : inorganic flame retardant main role is endothermic , the main varieties of aluminum hydroxide, magnesium hydroxide , red phosphorus , antimony oxide , molybdenum oxide , ammonium molybdate , zinc borate , zinc oxide , zirconium oxide, hydroxide, zirconium, etc. , in which aluminum hydroxide , magnesium hydroxide, red phosphorus , antimony oxide, the most widely used , in particular aluminum hydroxide, magnesium hydroxide can not only play a flame retardant , and can play the role of filling . They have good thermal stability , high efficiency , smoke suppression , resistance drops, fill safe, environmentally clean and cheap and other basic characteristics of the flame retardant material has been widely used . However, poor washability inorganic flame retardants , inorganic flame retardant because with strong hydrophilic polar , non- polar fabric with poor compatibility . Meanwhile, in order to achieve the required flame retardant , a large amount of inorganic flame retardant added , the mechanical properties of materials and processing performance impact . Therefore, the conventional ultrafine inorganic flame retardants and nano research in recent years has been unprecedented attention. In addition, to reduce the effect of the same flame retardant amount of a flame retardant compound , flame retardant research synergies , but also flame retardant research direction in recent years .

( 2 ) organic flame : organic phosphorus-based flame retardants and halogen is divided into two series . The former use is very restricted. Halogenated flame retardants include two major categories of chlorine and bromine . However, chlorine-based flame retardants brominated flame retardants to be better than the poor , and this is difficult to produce because of the reason of free chlorine group . In addition, as bromide, corrosive and toxic thermal decomposition is relatively small , and therefore the small amount of chloride can be achieved using the same flame-retardant effect . Therefore, use of brominated flame retardants much more common . However, the use of the total situation, halogen flame retardant due to its decomposition products containing halogen acid , smoke big , harmful , etc, are gradually being replaced by other inorganic flame retardants .

3.1 Multifunctional composite fabric flame retardant textile finishing production process

Textile flame retardant properties, three methods can be obtained . One is for flame-retardant treatment of textiles , to reach the fire retardant purposes, but the flame retardancy and washing with time gradually increase the number of weakened or disappeared. For cotton, linen, wool and other natural fibers , can only be used after finishing methods, namely by adsorption deposition, chemical bonding , van der Waals forces and non-polar bonding and so on. Another method is the direct production of flame retardant fibers , textiles made from such fibers having a permanent flame retardancy. Polyester , polyvinyl alcohol and other synthetic fibers they use this method. The third method is based on the actual needs of the production , effectively combine these two methods produce flame-retardant textiles. In addition to considering its flame retardant fabric , but also take into account the toxicity of flame retardant products and melt , so as to minimize the human and environmental damage.

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1 ) flame retardant fiber production process

There are fire-retardant fiber manufacturing coating, blending , and graft copolymerization modification method and core-sheath composite spinning method . Coating method is a fiber made ​​of a flame retardant used in the production process or its physical adsorption or chemical binding , the flame attached to the flame-retardant fiber to achieve the purpose of the method . However, moisture can lead to physical adsorption , toxicity and other issues, it will cause fabrics chemisorption strength decreased , feel hard and other defects. And this fire-retardant treatment method limited scope depends on the skills and finishing plant , the treatment effect instability, poor durability . This method is generally used for natural fiber fabrics and synthetic blended fabric with flame processing, can also be used for pure polyester , polyacrylonitrile fabric processing , but the application is not common. Blending the spinning slice that is added during the manufacturing process or the flame retardant was added to a melt spinning method to obtain flame retardant fiber . To produce a flame retardant polypropylene fiber , the addition of flame retardants , there are two methods : ① Full Granulation : the polypropylene , flame retardants , stabilizers were blended , and extrusion granulation . Pellets with this spinning , flame retardant properties can be obtained with polypropylene fibers. ② masterbatch method: flame retardants, carrier , stabilizer were blended granulation, which is masterbatch pellets . Spinning , the polypropylene masterbatch certain proportion slices mixed, and spun to obtain a flame retardant polypropylene fiber . This method uses the more common , reducing the spinning temperature , to improve the spinnability of the polypropylene , the yarn strength, elongation qualities such little effect . Copolymerization polymer that is added during polymerization of the monomer in a flame retardant obtained by copolymerizing a molecular chain containing fire retardant chemicals unit slice spinning method . Modified polymers using this method , durable flame retardancy . This method is mainly used for addition polymerization type ( polyacrylonitrile ) and polycondensation type ( polyester, polyamide ) . Graft modification method is to use radiant heat , high-energy electron beam or chemical initiator of the fiber and flame retardant monomer graft copolymerization, to obtain effective and lasting flame retardant modified method . Fire retardant and flame retardant modified fiber grafting monomer graft copolymerization retardant elements and relevant parts . The flame-retardant sheath-core composite spinning method for modifying the application is not common , primarily because of the need complicated spinning apparatus . In recent years, composite flame retardant polyester fiber spinning method , the use of skin - core structure , that is, or add a flame retardant copolymer polyester core common polyester composite spun from the cortex . This is to prevent premature decomposition of halogenated flame retardants affect hydrogen halide leave the flame retardant effect, and also prevents certain shortcomings of phosphorus flame retardants are not high temperature , but also to maintain the original appearance of the fibers , whiteness and dyeability .

( 2 ) Flame Retardant three anti-cloth textile production process

Retardant fabric finishing process are the following .

a. Padding baking France

This method is the most widely used method of flame-retardant finishing one , the process is : padding - pre-baking - baking - post-processing.

It is a flame retardant solution dipping solution , suitable flame retardant finishing cellulosic fabrics .

b. impregnation drying method

Process: dipping - drying - post-processing.

It is immersed in liquid flame retardant fabric placed a certain time , remove the drying can sometimes be flame retardant finishing and dyeing processes simultaneously.

c. coating method

It is mixed with a flame retardant resin processed within . According to the type of mechanical equipment, blade coating method, casting coating method and a calender coating method . Different products using different processing methods.

Blade coating method: slurry mixed with the flame retardant coating with a doctor blade directly on the fabric . Mostly made ​​of fire retardant solution or emulsion after the first application .

Casting coating method : pressure cast film is attached to the polymer fabric. For high levels of flame retardants and civil supplies a large curtain .

Calender coating method: the polymer film formed on the calender , and then laminated with the fabric , generally polyvinyl chloride resin , polyvinylidene chloride resin and a copolymer resin and a flame retardant such mixing . The tabernacle of the flame retardant finishing works mainly use this method.

d. spray

Who can not use common equipment for processing thick curtain, large carpets and other goods , can do it manually in the final step of spraying a flame retardant finishing . For the bulkiness surface pattern, tufted pile fabric fluff , if padding pattern hair will damage the surface , it is generally a continuous spray .

e. organic solvent

The flame retardants with organic matter dissolved , and then flame retardant finishing . It can shorten the time order , during operation , the solvent should be noted that the toxicity and flammability .

Purchase anti-static overalls to note several issues which

With the changing times, people's aesthetic has undergone enormous changes, has been greatly improved. For example: the same skirt, the traditional skirt suit has no one likes to wear, step skirt, Side skirts, front opening skirt style dresses began to be pretty ladies of all ages. In the uniform design process, if banks can make comprehensive use of the logo and colors which will play a finishing touch.
The choice of fabrics is very important, not all good fabrics are suitable for uniforms. Select fabrics must consider regional, such institutions in the South, should use moisture-proof, easy to dry, breathable fabric, while in the north should be more consideration insulation, anti-wrinkle, anti-static fabric better efficacy . Best not to use wool and pure silk fabrics. If you use cotton fabric, also be sure to select through the iron-treated, otherwise the staff will bring a lot of trouble.
Therefore, enterprises in the procurement of antistatic fabric clothing, do not just from the price to consider, from the psychological needs of employees, the actual function, and so comprehensive selection! After all, the clothes are not solely for the purpose of a function, where wearing comfort is also particularly important.

Precautions for fire-retardant protective clothing

Though this is flame retardant fabric clothing, fire retardant, but not all places are applicable. Shanghai Garment Co., Ltd. Cheung Kin specialty occupation Tips retardant protective clothing NA places: fire fighting, metal splash, industrial harmful light rays and a large number of welding sparks flying, high-temperature environment, chemical splash and corrosion sites. When the water temperature suitable for the cleaning of 30 degrees or less, per kg of clothing plus a mild soap or detergent without enzymes 1g, solvent ratio not greater than 1:40, the use of light washing method. After washing should be in the sun to dry, or dry naturally after 150 degree heat ironing two minutes, you can also bake at 150 degrees hot four minutes later. Shall be stored in dry, ventilated, avoid mechanical or chemical damage. And shall not be put together with corrosive substance.

Identification fabric composition

Identification fabric composition is simple combustion method. Practice is to place the garment hemming ray include pumping the warp and weft yarn fabric with fire to ignite, the combustion flame observation state after burning smell yarn fabric odor, see residue after combustion, in order to determine durability and clothing fabric ingredients on the label are consistent, in order to identify the authenticity of fabric composition.
A cotton fiber and cotton fiber and hemp fiber hemp fiber are just near the flame that is burning, burning quickly, yellow flame, take the blue smoke. Both the smell and the burning ashes after burning difference is that the issue of paper burning smell of cotton, linen smell of burning ash; combustion, there is very little cotton powder ashes, was black or gray, hemp produces a small amount of white powder is ashes.
Second, the wool fibers and silk wool fire smoke, burning blistering, burning slowly, emitting a smell of burning hair, coke, ashes after burning mostly glossy black spherical particles, finger pressure that is broken. Silk shrunk slug fire, burning slowly, accompanied by hissing sound, emitting a fever burnt hair, dark brown after burning to form small spherical ash, hand twist that is broken.
Third, the scientific name of nylon and polyester nylon polyamide fibers, huddled near the flame that quickly melt into white gelatinous, dripping burning in flames melt and blistering, burning without a flame, the flame is difficult to continue to burn away, emitting a celery flavor, After cooling, light brown melt easily crush. Polyester generic polyester fiber, easy to ignite, near the flame that melt condensation, black smoke when burned edges melted edge, yellow flame, a sweet odor, dark brown ash after burning lumps, can crush with your fingers.
Four, acrylic and polypropylene acrylic generic polyacrylonitrile fiber, near the fire to soften collapsing, black smoke after the fire, the flame was white, from the flames quickly burned, emitting a smell of burning flesh bitterness, irregular black ash after burning lumps hand twist brittle. Polypropylene generic fiber, near the flame that melting shrinkage, flammable, slow burning and black smoke from the fire, the flame top yellow, blue bottom, emitting a smell of oil, after burning ashes of hard round light brown granules, hand twist Yi broken.
Five, polyvinyl alcohol and polyvinyl chloride polyvinyl formal scientific name PVA fibers, not ignite, near flame melt contraction, the top a little flame burning until the fibers are melting into a gelatinous flame becomes large, thick black smoke, emitting bitter fragrant odor the combustion of the remaining particles of small black beads, finger crushing. Polyvinyl chloride PVC generic fiber, difficult to burn from the fire is extinguished, the flame is yellow, the lower green white smoke, emitting irritating pungent sour after burning ash is dark brown irregular lumps, easy to crush your fingers.
Six, spandex spandex with Teflon generic polyurethane fiber, melting side near the fire burning, burning blue flame, leaving the fire to continue burning fuse, exudes a special pungent odor, ashes after burning the soft fluffy black ash. Generic Teflon PTFE fiber, ISO organization called fluorite fiber, near the flame just melted, difficult ignition, no burning, the flame was blue-green edge carbonization, melting and decomposition of toxic gases, melt the hard round black beads. teflon cloth used in the textile industry in the manufacture of high-performance sewing thread.
Seven, viscose fiber and viscose fiber cupro-flammable, burning fast, yellow flame, emitting burning smell, less ash after burning, twisted ribbon was smooth and light gray or white fine powder. Cupro Common Tiger kapok, near the flame that is burning, burning speed, yellow flame, emitting ester sour, very few ashes after burning, only a small amount of gray and black ash.

Fabric classification

Soft fabrics are generally more thin, good drape, shape lines smooth, natural stretch clothing outline. Soft fabrics including evacuation of fabric structure of knitted fabrics and silk fabrics and soft thin linen fabrics. Soft knit fabric often used in fashion design linear concise style reflects graceful curve of the body; silk, linen and other fabrics are more common and there are loose pleated effect of modeling, performance fabrics sense of flow lines.

Very cool fabrics have clear lines sense of volume, can form the fullness of clothing outline. Common with cotton, polyester cotton fabrics, corduroy, linen and a variety of thick wool and synthetic fabrics, such fabrics can be used to highlight the design of costumes accuracy of such suits, suit design.

Surface smooth and shiny fabrics that reflects the light, there is a sense of shine. Such fabrics include satin fabric structure. Evening dress or most commonly used in theatrical performances served to produce a strong dazzling visual effects. Shiny fabrics dress performances in a wide degree of freedom in shape, may have a simple design or a more exaggerated modeling approach.

Tinggua thick heavy fabrics, can produce a stable shape effects, including various types of thick woolen cloth and quilted fabrics. The fabric has a physical sense of expansion, not too much use of pleating and accumulation, the design of A-and H-shape most appropriate.

Transparent type fabric texture thin and transparent, with elegant and mysterious artistic effect. Including cotton, silk, chemical fiber fabrics, such as georgette, satin silk, chemical fiber, lace and so on. In order to express the transparency of fabric, commonly used natural lines plump and full of change and a round table H-type design modeling.

Functional fabrics are fabrics with special functions, such as fire-retardant, antistatic fabric, anti-acid and so on.

Special protective equipment commonly used in life

1, seat belt use period

    Seatbelt use two years later, the situation should be sampling bulk purchaser once. If qualified, the batch can continue to use seat belts. For pumping tried transect, safety rope must be replaced before further use. Frequently used rope, should always do visual inspection, abnormal, should be immediately replaced with a new rope. The use of a string of 3 to 5 years.

     2, antistatic fabric and anti-static overalls shoes Precautions

     (1) GB 12014-89 "anti-static overalls" provides that: wear anti-static clothing must be specified with the GB 4385 matching wearing anti-static shoes.

     (2) due to multiple washing, anti-static overalls antistatic properties will be reduced, so that the ambient temperature is high, labor-intensive, the number of frequent washing of enterprises to develop an appropriate period of use should be shorter.

     (3) anti-static shoes wearing course, generally not more than 200 hours resistance test should be carried out once, such as failure, can not continue to use.

     3, the electrical insulation shoes, period of use insulated gloves Precautions

     Electrically insulating footwear include: electrical insulation shoes, canvas shoes, rubber surface shoes, plastic shoes four categories. According to the labor intensity of each unit, operating in different environments, develop a reasonable period of use. But note here the following: First, storage, from the factory more than 18 months, shall be carried out only by the electrical properties of preventive inspection; second is where the end to help the Department of corrosion damage, can no longer be electrically insulated shoes wear; three is to use at least every six months once electrical performance tests, such as failure can not continue to use. Insulated gloves period of use, the units can be made according to how frequently required, but must be requested prior to each use self-blowing, at least once every six months electrical performance tests, such as failure can not continue to use.

     4, with hearing protectors Precautions

     Hearing protectors including anti-noise earplugs, earmuffs anti-noise, anti-noise helmet. In general, anti-noise, anti-noise helmets best, not only noise deadening air conduction, bone conduction can reduce noise on the ear injury, should be used in high noise environments, earmuffs, followed by anti-noise performance, and the worst anti-noise earplugs in 1000 ~ 2000Hz band generally sound attenuation value of only 10 ~ 20dB.

Use of personal protective equipment there are several errors

Myth # 1: Wear personal protective equipment can not wear

        Experts point out that personal protective suits to eliminate or reduce occupational hazards for workers health effects, "Occupational Disease Prevention Law" stipulates that the employer must provide laborers to meet the requirements of protective equipment, while the obligation of workers to wear protective equipment.

        Myth # 2: Workshop does not smell, you can not wear personal protective equipment

        Experts point out that many of the harmful gas is a colorless, odorless, tasteless, does not have any warning, do not feel. Even flavored, the perception of sensory organs on the outside have their limitations and individual differences. Therefore, over-confident feeling, may cause occupational poisoning.

        Myth # 3: gauze masks can be used to dust

        Not be used as ordinary gauze masks dust masks. We now use the gauze masks, although cheap, summer sweat, warm in winter, but this masks (even 16 thickness) can easily lead to pneumoconiosis protection respirable dust hazards, dust requires special dust masks.

        Myth # 4: Medical masks used antivirus

        Medical masks to prevent disease spread by droplets, but can not filter out toxic gases. For different poisons, you need to use a different filter effects of protective masks. Generally volatile organic gas can with activated carbon respirator.

         Myth 5: dust masks washed reuse

         Dust mask filter is not washable. Dust masks are used efficiently filter is usually woven material, and some also rely on fiber filters with electrostatic charge respirable dust. After washing the filter microstructure will be damaged, appear invisible cracks, holes, will be significant loss of electrostatic charge, the filter performance in serious decline.

         Protective equipment belonging to a passive protective measures, in any case should be the first to take the advanced production technology, good engineering protection facilities to proactively prevent occupational diseases; in protective facilities are not able to completely eliminate occupational hazards in the case before considering the their workers with appropriate personal protective equipment. Notably, personal protective equipment is not a panacea, and any personal protective equipment has its applicability, limitations, need to consider the use of the environment and the scope of protective equipment.

Antistatic fabric

Using hydrophilic finishing or conductive fibers plus the ways in which a conductive fabric, this fabric is not easy to absorb dust, antistatic, very suitable for the production of special clothing such as dust carpets and clothing.

The main products are:

 Antistatic fine twill fabric: warp and weft of the fabric used JT/C32X32; latitudinal distance in specialty fibers mixed with an anti-static, product specifications 130X70, fabric width is 63 inches, with fine twill weave fabric woven in rapier machine woven, fabrics charming style, texture, very suitable, protective clothing is to produce spring trendy fabrics.
Anti-static line Cappuccino: It weft yarn using JT / C yarn 32s / 2 * 32s / 2; incorporation in the distance in the zonal static conductive specialty fibers, fabrics by 108 * 53 specifications, twill weave fabric used in rapier weaving machine woven, has been hard-line, pre-shrinking, shaping, dyeing and other sophisticated processing technology. Its shade is good, feel good, easy to wrinkle, drape strong, easy to wash, anti-static performance is particularly strong protective clothing and other unique strengths to win the love of enterprise. "Anti-static line card" is mainly used to produce petrochemicals, gas stations, gas stations, oil depots and other flammable occasions tanker early spring overalls.
Antistatic canvas: the fabric warp using CVC21s / 2 full cotton yarn; yarn used 10s; zonal cm distance incorporation in a special antistatic fibers, plain weave fabric woven on the loom, dyeing and finishing process uniquely . Charming and beautiful canvas, cotton canvas, compared it with the other, in addition to a soft, crisp, breathable, washable, comfortable and so there are features, and fastness, good drape, antistatic fabrics are exceptionally strong for the other less. "Antistatic canvas" is mainly used to produce petrochemicals, gas stations, gas stations, oil depots and oil tankers and other explosive situations
Antistatic straight Kampot: The fabric is 2005 the development of new varieties, listed now sales have been not bad, it uses the warp 32s / 2 all cotton; weft using 32s / 2 all cotton; incorporation in zonal cm distance an antistatic specialty fibers, fabrics with 3/1 satin organization rapier loom woven, dyeing and finishing process uniquely. Charming and beautiful canvas, which compared with cotton satin fabric, in addition to a soft, crisp, breathable, washable, comfortable and so there are features, and fastness, good drape, antistatic fabric are exceptionally strong for the other less.

Antistatic how to identify the type of fabric

Antistatic fabric root ordinary fabric the same, but added a conductive wire.
Therefore, anti-static cloth to distinguish according to the following rules:
1) Base material polyester, nylon, polyvinyl alcohol, or composite
2) the structure of knitted fabric (minute number) weight thickness, woven (usually 1/1, 1/2) the structure and weft density.
3) the surface conduction type of yarn (each electrically conductive wire has a different structure of the material) and the density of mercerizing (0.5cm stripes, grids, etc. 0.25) and the surface friction resistance and voltage and its decay time.
4) the density of the material and the moisture vapor permeability capacity

Large inventory of special protective fabrics

Special protective fabrics, including anti-static fabric, fabric anti-acid, anti-oil-water repellent fabric, waterproof fabric, x-ray protective fabrics, high-voltage electrostatic protective fabrics. The application of such fabrics produced according to specific work clothing needs to be selected and the needs of the environment with.

Antistatic fabric is to prevent accumulation of static anti-static clothing fabrics. Anti-static clean fabric with special polyester filament yarn, warp or weft woven conductive fibers embedded. An efficient, permanent anti-static, dust-proof performance, thin slip, textured clear characteristics. In the production process according to the level of garments require different styles, and the use of conductive fibers sewing the garment parts to maintain electrical continuity; sleeves and pants for the unique two-tier structure, the inner conductive or antistatic rib, to meet the high-level dust-free environment. This fabric is made of stainless steel fibers, sub-conductive fibers, antistatic fibers and cotton blended or mixed fabric, corona discharge or leakage can be automatically discharged, to eliminate static electricity j clothing and body, in addition to clothing, can be used to produce anti- Electrostatic hats, socks, shoes, and so on.

Acid resistant fabric or fabric with acid-resistant rubber, plastic and other materials suitable for persons engaged in contact with the acid used. Acid resistant material based on the nature of the material, divided into breathable and air-tight. Breathable fabric used in anti-acid, mild acid contaminated sites protection, spare clothing products can be divided into two kinds of style and gown; air-tight acid-proof fabric for severe acid contaminated sites, can be made of one-piece, spare style, apron-style and other apparel. Acid and other acid-proof fabric performance should meet the relevant industry regulations.

Welding protective fabric is based on fabric, leather or made through the foil or spray fabric lining. The oil resistant and water-resistant fabric is collated, that the fabric is treated with a fluoropolymer coating and finishing padding fabric with craft, the fiber surface energy exclusion, alienation oil and water-based liquid medium, thus to avoid hindering breathable and comfortable, but also Such liquids can effectively resist the erosion of underwear and body, can be divided into the winter season, summer, oil resistant and waterproof fabric.

Mention waterproof material, in fact, only then l5 century Indian rubber tree out of the slurry coated cloth, tarpaulin manufacturers in Europe from 1735 began. But some of the more advanced industrial countries, due to the progress of science, improvement of living standards, industry, agriculture, the development of transport, especially munitions consumption increased year by year, requiring a large number of functional coated fabrics, coated fabrics because profit higher than the general textile production process, so in some foreign industrialized countries attach great importance to this work, it developed quickly. On the development of waterproof material, waterproof clothing research, quality inspection and the necessary equipment, equipment, research, etc., are in a leading position.

Rubber waterproof clothing is the main material, the use should not touch a variety of oils. Rubber is a value extracting rubber, latex rubber, grass and other plants after processing made of a flexible, insulating, and air impermeable material. High elastic polymers. Into natural rubber and synthetic rubber of two kinds. Natural rubber from the rubber tree, grass and other plants to extract rubber gum after processing is made; synthetic rubber from various monomers by polymerization reaction. Rubber products are widely used in industrial or all aspects of life.