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 .
2013年10月24日星期四
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.
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.
2013年10月23日星期三
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 .
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 .
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 .
2013年10月16日星期三
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.
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.
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.
2013年10月11日星期五
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.
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.
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