Speaking flame retardant fabric, flame retardant fabric is we all know that is put away from the fire, retardant, non-renewal of burning cloth, then flame-retardant cloth which features it?
1 can use a variety of fabrics flame retardant treatment, flame retardant function and thus also closely related to physical and chemical properties of materials, although the use of different materials in the same fabric flame retardant, the flame retardant effect is also different and requires attention.
2 flame retardant does not mean burn, just extend the ignition time, such as the ignition point of the material reached after 20-30 seconds before the fire extended to fight off the ignition of clothing of the time, reduce the degree burns.
3 from the fire goes out, you need to look at the fire temperature and the air (oxygen), and in such a high-temperature environment, the length of time. Flame retardant effect exceeds its limit or could play a role in time, flame effect disappeared, no different from ordinary fabrics.
4 retardant, a flame retardant in a high temperature environment than design time or temperature, such performance is equally valid.
5 is not continued burning, need to look at the fire conditions and environment, if an adequate supply of oxygen to the fire, sweltering too high, continued burning the possibility still exists.
This is the civilian / commercial flame retardant conditions, special purpose such as: Fireman / Fire Equipment / Military equipment / Special Industrial equipped, etc., from the fabric material / Flammability class several levels higher than the civilian.
After a Fire
resistant fabric, other functional fabrics with the same general. Questioning synthetic fabrics can also be used to achieve flame retardant treatment effect you? Answer pairs can be extended ignition time and increase fiber melting temperature (this is very important because the chemical adhesion with the skin after the fire, rescue quite troublesome, chemical fire risk than cellulose fibers high).
2013年9月29日星期日
2013年9月28日星期六
Retardant overalls fabric three key indicators
I. smoldering time less than 2 seconds : the specified test conditions, when the termination of combustion with flame , or removed ( point ) after the fire continuing flameless combustion material in less than 2 seconds.
Second, the continued burning time of less than two seconds : the specified test conditions, remove the ( dot ) continued after the fire source material flame burning time of less than two seconds .
Third, the length of the combustion loss , also known as carbon long. At a specified test conditions, material damaged area in a predetermined direction is less than the maximum length 50CM.
Ie, after the Flame resistant overalls Fabric finishing by the method specified in contact with the flame a certain time , and then remove the flame , flaming combustion continued determination fabric of time and flameless combustion of the time, as well as fire-retardant overalls fabrics were damaged degree . Flaming combustion time and flameless combustion shorter the time , the lower the degree of damage , then flame retardant fabric fire retardant overalls better ; On the contrary, it means that poor flame retardant fabrics .
Second, the continued burning time of less than two seconds : the specified test conditions, remove the ( dot ) continued after the fire source material flame burning time of less than two seconds .
Third, the length of the combustion loss , also known as carbon long. At a specified test conditions, material damaged area in a predetermined direction is less than the maximum length 50CM.
Ie, after the Flame resistant overalls Fabric finishing by the method specified in contact with the flame a certain time , and then remove the flame , flaming combustion continued determination fabric of time and flameless combustion of the time, as well as fire-retardant overalls fabrics were damaged degree . Flaming combustion time and flameless combustion shorter the time , the lower the degree of damage , then flame retardant fabric fire retardant overalls better ; On the contrary, it means that poor flame retardant fabrics .
2013年9月27日星期五
Retardant curtains and Its Application
Retardant curtains, refers to a series of fire-retardant fabrics made of specially treated exquisitely beautiful , and the relatively high flame retardant curtains. Flame retardant curtain fabric according to adopted into a permanent flame retardant curtains and disposable curtains. Permanent flame retardant fabric curtain is the primary end use of permanent fire-retardant fabrics and modern special production process combining curtains made ; while disposable disposable flame retardant curtain fabric is made curtains for the raw materials the . Due to cost and technical reasons, is one of the more popular before the fire curtain , and with the improvement of people's living standards and technology continues to evolve, now permanently flame retardant curtain has come out , and favored by consumers !
The use of flame retardant fabric : the use of nano-materials and technical processing after the cloth made curtains , reaching prevent burning effect, but also comes with some of the following characteristics: a . Basic functions of the existing curtain on the basis of additions and enhanced flame retardant, insulation, thermal insulation , sound absorption, sound insulation, anti-bacterial , anti-mildew , waterproof, anti-oil , anti-fouling , anti-static dust and other functions ; two . curtain fabric width from 1.5 meters to 3.1 meters , can be meet a variety of different height and width of the window size needs ; three security did not taste , green , low-carbon energy , do not wash , no maintenance , has been to keep clean , water saving, worry easy .
The use of flame retardant fabric : the use of nano-materials and technical processing after the cloth made curtains , reaching prevent burning effect, but also comes with some of the following characteristics: a . Basic functions of the existing curtain on the basis of additions and enhanced flame retardant, insulation, thermal insulation , sound absorption, sound insulation, anti-bacterial , anti-mildew , waterproof, anti-oil , anti-fouling , anti-static dust and other functions ; two . curtain fabric width from 1.5 meters to 3.1 meters , can be meet a variety of different height and width of the window size needs ; three security did not taste , green , low-carbon energy , do not wash , no maintenance , has been to keep clean , water saving, worry easy .
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9月26日星期四
Retardant fabric finishing technology and progress
flame retardant fabric commonly used in the classification
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 .
Press the durability of the fabric classification
( 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 : fireproof 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 , Fire resistant fabric 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.
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 .
Press the durability of the fabric classification
( 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 : fireproof 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 , Fire resistant fabric 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.
2013年9月24日星期二
Introduction of anti-static fabric
antistatic fabric is added in the weaving conductive fibers . Now domestic electronics, chemicals, petroleum and other industries on the static overalls growing demand , while the anti-static cloth requirements are also increasing , both requiring anti-static effect but also comfortable, beautiful, that is to achieve security and organic combination of fashion . Recently launched on the market in Jiangsu and Zhejiang, a twill plaid conductive fabric , ordering by growing more optimistic about sales prospects are expected . Warp and weft of the fabric with polyester FDY75D/72F (98% ingredients ) +70 D/30F Kanebo conductive yarn ( 2% Ingredients ) , weaving specification is 83 * 47 , and in the latitudinal distance incorporation antistatic special fiber , the use of Tigray twill ( 2/3 twill , 5mm grid ) organizations in the water jet loom woven , has been shrinking , alkali reduction , dyeing , stereotypes 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 . Wrinkle -iron fabric conductive fabric is mainly used for the production of petrochemical , gas stations , gas stations , oil depots and tankers , scientific research, military, and aerospace and other fields of decorative anti-static fabric. Currently conductive fabric dyeing and weaving process and post-processing basically mature . Fabric width is 152cm, market tofo wholesale price is 5.50 yuan / m . Listed are the color white, brown, camel gray , dark blue and so on 20 kinds , rich colors in tune with fashion color trend exactly . UV protection fabric fabric conductive fabric on the market recently has become distinctive highlights one of the products , according to the seasons fabrics gram weight , and gradually formed a large perennial merchantability antistatic fabrics . Cation plaid satin. As people become increasingly consumer attitudes update on summer is very particular about the choice of fabric , both to light, soft , breathable, but also fashionable and trendy styles .
Retardant fabric range of applications
flame retardant fabric wide range of applications , the main purposes are:
1 , industrial textiles . Such as synthetic National Engineering Research Center has used its production Mianjin retardant fabric developed acupuncture cloth , filter media for 200 ℃ . Retardant polyester also produce other kinds of cloth ; retardant nonwovens ; rail , marine, automotive and transportation of goods with ports, terminals , warehouses used tarpaulins and coverings ; building roof ; various types of luggage fabrics.
2 , building decoration materials. National Engineering Research Center using synthetic flame retardant fabrics Mianjin
Air textured yarn, fabric wall covering has produced a hotel and office furniture, decorative veneer . Also produce flame-retardant polyester carpets, curtains , furniture lining materials, such as mattresses, sofas lining material .
3 , vehicle interiors . Mianjin retardant fabrics can be produced aircraft , automotive, marine seat fabric , flame retardant polyester staple fiber but also for the automotive, aircraft other interior materials, such as roof it, car carpet , trunk liner and seat cushion . Currently in the country in addition to high-end cars , the vast majority of car upholstery fabric flame retardant material used neither , so car decoration materials will become a huge market for flame retardant fabrics .
4 , overalls. According to national standards retardant overalls , metallurgy , forestry, chemicals, petroleum, fire departments, fire-retardant protective clothing should be used . According to statistics, China should use flame-retardant overalls number over one million , flame retardant protective clothing market has great potential . In addition to the pure flame retardant polyester outside , according to the user's specific requirements , production of flame retardant , waterproof, oil repellent , anti-static fabrics, such as multifunction products. Mianjin retardant fabrics such as waterproof, oil repellent finishing , can improve the functionality of fire-retardant clothing ; using flame-retardant polyester and conductive fibers interwoven to produce flame-retardant anti-static fabrics ; using the flame retardant fiber blended with high-performance fibers interwoven to produce high-performance flame retardant fabrics ; using flame-retardant fiber and cotton , rayon and other fibers to improve protective clothing comfort, while reducing secondary burns natural resistance performance standards for comparison .
1 , industrial textiles . Such as synthetic National Engineering Research Center has used its production Mianjin retardant fabric developed acupuncture cloth , filter media for 200 ℃ . Retardant polyester also produce other kinds of cloth ; retardant nonwovens ; rail , marine, automotive and transportation of goods with ports, terminals , warehouses used tarpaulins and coverings ; building roof ; various types of luggage fabrics.
2 , building decoration materials. National Engineering Research Center using synthetic flame retardant fabrics Mianjin
Air textured yarn, fabric wall covering has produced a hotel and office furniture, decorative veneer . Also produce flame-retardant polyester carpets, curtains , furniture lining materials, such as mattresses, sofas lining material .
3 , vehicle interiors . Mianjin retardant fabrics can be produced aircraft , automotive, marine seat fabric , flame retardant polyester staple fiber but also for the automotive, aircraft other interior materials, such as roof it, car carpet , trunk liner and seat cushion . Currently in the country in addition to high-end cars , the vast majority of car upholstery fabric flame retardant material used neither , so car decoration materials will become a huge market for flame retardant fabrics .
4 , overalls. According to national standards retardant overalls , metallurgy , forestry, chemicals, petroleum, fire departments, fire-retardant protective clothing should be used . According to statistics, China should use flame-retardant overalls number over one million , flame retardant protective clothing market has great potential . In addition to the pure flame retardant polyester outside , according to the user's specific requirements , production of flame retardant , waterproof, oil repellent , anti-static fabrics, such as multifunction products. Mianjin retardant fabrics such as waterproof, oil repellent finishing , can improve the functionality of fire-retardant clothing ; using flame-retardant polyester and conductive fibers interwoven to produce flame-retardant anti-static fabrics ; using the flame retardant fiber blended with high-performance fibers interwoven to produce high-performance flame retardant fabrics ; using flame-retardant fiber and cotton , rayon and other fibers to improve protective clothing comfort, while reducing secondary burns natural resistance performance standards for comparison .
2013年9月18日星期三
Retardant polyester fabric
flame retardant fabric , often by gas flame , condensed phase flame retardant and heat exchange disruption and other principles to achieve . In addition to used in industrial textiles , architectural decoration , vehicle decoration endures, but also used in metallurgy , forestry, chemicals, petroleum, fire departments, fire-retardant polyester protective clothing .
Polyester washable flame retardant finishing fabrics with polyester washable flame retardant finishing ATP finishing, finishing fabrics halogen , in line with environmental protection requirements , the main technical indicators in the international advanced level. Retardant finish fabric has good feel and appearance , with a washable, flame-retardant effect is excellent, non-toxic safety features. This product does not contain halogens , in line with environmental protection requirements , the main technical indicators in the international advanced level. Flame retardant polyester fabric index can reach the national standard B2 level and above . Washable up to 30 times or more.
Modified polyester fabric flame retardant finishing process is simple . However, if the amount is more flame retardants , the texture and color of the fabric greater impact . Retardant polyester fabric and nylon fabric flame retardant fabric finishing methods generally have the following three categories:
( A ) the design of imaging dyes flame retardants as adsorption -type structure , the use of finishing - stained a bath process .
( 2 ) with a hot melt method with great affinity flame retardant polyester fiber fixed to the fiber. This method is suitable for flame retardants narrow range, little effect on the texture , wash fastness.
( 3 ) dissolution retardant and easy to use , flame-retardant effect is good, for natural and chemical fiber fabrics and paper intolerance wash flame retardant finishing , but also for hotels, cars and other interior materials used in flame retardant finishing .
Polyester washable flame retardant finishing fabrics with polyester washable flame retardant finishing ATP finishing, finishing fabrics halogen , in line with environmental protection requirements , the main technical indicators in the international advanced level. Retardant finish fabric has good feel and appearance , with a washable, flame-retardant effect is excellent, non-toxic safety features. This product does not contain halogens , in line with environmental protection requirements , the main technical indicators in the international advanced level. Flame retardant polyester fabric index can reach the national standard B2 level and above . Washable up to 30 times or more.
Modified polyester fabric flame retardant finishing process is simple . However, if the amount is more flame retardants , the texture and color of the fabric greater impact . Retardant polyester fabric and nylon fabric flame retardant fabric finishing methods generally have the following three categories:
( A ) the design of imaging dyes flame retardants as adsorption -type structure , the use of finishing - stained a bath process .
( 2 ) with a hot melt method with great affinity flame retardant polyester fiber fixed to the fiber. This method is suitable for flame retardants narrow range, little effect on the texture , wash fastness.
( 3 ) dissolution retardant and easy to use , flame-retardant effect is good, for natural and chemical fiber fabrics and paper intolerance wash flame retardant finishing , but also for hotels, cars and other interior materials used in flame retardant finishing .
Polyester flame retardant fabric types
Retardant polyester fabric in the application of protective clothing : polyester flame retardant fabric, fluorescent retardant fabric, permanent flame retardant fabric , fire retardant canvas , flame retardant fabric, fire-retardant straight satin , three fire-retardant fabrics
Retardant polyester fabric with permanent flame resistance due to its very broad application prospects . It is understood that fire-retardant polyester wide range of applications , in addition to textiles, building decoration, interior decoration and other modes of transport play an irreplaceable role , also in the field of protective clothing plays a role in many , flame retardant fabrics the flame-retardant protective clothing has excellent resistance to washing performance , non-toxic tasteless non-irritating to human safety and reliability, breathable , soft, comfortable to wear.
According to national standards for flame-retardant protective clothing , metallurgy , forestry, chemicals, petroleum, fire departments should use polyester flame retardant protective clothing. According to statistics, China should use the number of fire-retardant protective clothing more than one million , flame retardant protective clothing market has great potential . In addition to flame retardant polyester fabric outside , according to the user's specific requirements , production of flame retardant , waterproof, oil repellent , antistatic multifunctional products. Such as flame-retardant polyester fabric waterproof, oil repellent finishing , can improve the functionality of fire-retardant clothing ;
Using fire-retardant polyester fabric with conductive fibers interwoven to produce an anti-static flame retardant fabrics ; utilize flame retardant fiber blended with high-performance fibers , can produce high-performance flame retardant fabrics ; using flame-retardant fiber and cotton , rayon and other fibers to improve the comfort of protective clothing , while reducing the secondary burns.
Retardant polyester fabric with permanent flame resistance due to its very broad application prospects . It is understood that fire-retardant polyester wide range of applications , in addition to textiles, building decoration, interior decoration and other modes of transport play an irreplaceable role , also in the field of protective clothing plays a role in many , flame retardant fabrics the flame-retardant protective clothing has excellent resistance to washing performance , non-toxic tasteless non-irritating to human safety and reliability, breathable , soft, comfortable to wear.
According to national standards for flame-retardant protective clothing , metallurgy , forestry, chemicals, petroleum, fire departments should use polyester flame retardant protective clothing. According to statistics, China should use the number of fire-retardant protective clothing more than one million , flame retardant protective clothing market has great potential . In addition to flame retardant polyester fabric outside , according to the user's specific requirements , production of flame retardant , waterproof, oil repellent , antistatic multifunctional products. Such as flame-retardant polyester fabric waterproof, oil repellent finishing , can improve the functionality of fire-retardant clothing ;
Using fire-retardant polyester fabric with conductive fibers interwoven to produce an anti-static flame retardant fabrics ; utilize flame retardant fiber blended with high-performance fibers , can produce high-performance flame retardant fabrics ; using flame-retardant fiber and cotton , rayon and other fibers to improve the comfort of protective clothing , while reducing the secondary burns.
2013年9月17日星期二
Anti-static overalls conservation
Packaging and Storage
In transit should be noted that the above must have antistatic fabric 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 .
Care and Maintenance
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.
In transit should be noted that the above must have antistatic fabric 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 .
Care and Maintenance
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.
2013年9月14日星期六
Increase R & D retardant textiles
Unlike textiles and plastics materials , the requirements for flame retardant effect not only good, but also must meet textile processing technology, resistant to washing ( dry cleaning and washing ) , sun-resistant , non- droplet , low smoke emission , low toxicity, skin irritation , no smell, no moisture absorption , low price range requirements. In retardant textile research work, low smoke and low toxicity , inexpensive and efficient, had no effect on the original fiber properties for the current key research topics .
Single component retardant textile relatively easy to solve the problem , and the natural fiber and chemical droplet fusible fibers, interwoven fabric flammability stronger, which is due to heat fusion fiber case , one of the natural fibers are the same as the wick , the melt bulk liquid absorbing polymer to promote further decomposition and oxidation, combustion is more prosperous. As people used polyester / cotton blended products retardant technology is still a worldwide problem .
In order to fibers made from natural ingredients , seaweed fiber has good flame resistance , up to 34% of its LOI , seaweed fibers from brown sea algae extract , our rich marine resources , some institutions are engaged in retardant textile fiber production with algae research . Without flame retardant to achieve the flame retardant fabric effect is the best way, but in the process , the manufacturing cost so much work needs to be done .
Single component retardant textile relatively easy to solve the problem , and the natural fiber and chemical droplet fusible fibers, interwoven fabric flammability stronger, which is due to heat fusion fiber case , one of the natural fibers are the same as the wick , the melt bulk liquid absorbing polymer to promote further decomposition and oxidation, combustion is more prosperous. As people used polyester / cotton blended products retardant technology is still a worldwide problem .
In order to fibers made from natural ingredients , seaweed fiber has good flame resistance , up to 34% of its LOI , seaweed fibers from brown sea algae extract , our rich marine resources , some institutions are engaged in retardant textile fiber production with algae research . Without flame retardant to achieve the flame retardant fabric effect is the best way, but in the process , the manufacturing cost so much work needs to be done .
2013年9月12日星期四
Retardant overalls requirements
Dress Precautions
1. Retardant overalls must be provided with GB4385 retardant wearing matching shoes.
2. Attach prohibited retardant clothing or wearing any metal objects. Tools should be required to carry a flame retardant, anti-spark function; Metal tool belt she should be placed in fire-retardant overalls prohibited within the exposed metal parts.
3. Prohibited in flammable and explosive places retardant overalls to wear off.
4. Strong electromagnetic environment in or near high voltage bare areas, not wearing flame resistant overalls.
Retardant overalls appears damaged, broken suture removal, mildew, conductive fibers break off, or has reached the required fire resistance rating washing time, should be scrapped. Using unit should use half of the period of use or store up period of up to one year retardant overalls sampling inspection, the detection of flame retardant products to lose the whole batch should be promptly discarded in order to ensure product conformity with
1. Retardant overalls must be provided with GB4385 retardant wearing matching shoes.
2. Attach prohibited retardant clothing or wearing any metal objects. Tools should be required to carry a flame retardant, anti-spark function; Metal tool belt she should be placed in fire-retardant overalls prohibited within the exposed metal parts.
3. Prohibited in flammable and explosive places retardant overalls to wear off.
4. Strong electromagnetic environment in or near high voltage bare areas, not wearing flame resistant overalls.
Retardant overalls appears damaged, broken suture removal, mildew, conductive fibers break off, or has reached the required fire resistance rating washing time, should be scrapped. Using unit should use half of the period of use or store up period of up to one year retardant overalls sampling inspection, the detection of flame retardant products to lose the whole batch should be promptly discarded in order to ensure product conformity with
Measures to prevent the accumulation of flammable overalls
Measures to prevent the accumulation of flammable clothing, a certain way through the conductive object as soon as the combustible charge, it is dispersed or leak out. Therefore, the flame-retardant clothing should be selected with good conductive fiber fabrics, flame retardant fabrics currently used mainly in the following three kinds.
1 the effect of humidity using anti-flammable dependence. Finishing by an anti-flammable, which is added in the spinning hydrophilic polymer (surfactant), the fabric easy to absorb moisture from the air, reduce the sheet resistance, reducing the accumulation of flammable, combustible timely release of the body.
(2) the use of conductive fibers. The fiber material is added anti-flammable agents and carbon black particles to become conductive fibers by blending, and cross, cross knitting, weaving or embedded woven methods to improve the conductivity of the fiber or fabric, flame retardant fabric generated, zgm09zd achieve charge dissipation to prevent accumulation of flammable.
3 in the amount of fibers mixed metal fiber blended fabric, the kind of fabric, good stability, resistance to washing.
Special labor protection supplies are included in the directory of the "flame-retardant overalls," is to prevent the accumulation of flammable overalls, flame retardant fabric for the fabric while sewing, suitable for wearing a fire or explosion hazard. Retardant fabric used mainly in the textile production process, the substantially homogeneously mixed with other interval or the whole or parts of metal or a conductive organic material or a flame retardant synthetic fibers, or a mixture interwoven . Classification
Any use as overalls, fire and explosion hazards in the workplace wearing clean overalls, flame retardant overalls, fire retardant cardigans, are included in the scope of management safety signs.
Retardant overalls technical requirements including structural, flame retardant, high strength three aspects.
Overalls production structure directly affect the flame retardant effect, therefore, the structural design of fire-retardant overalls must ensure that:
1. Overalls generally not use metal attachments, 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. Overalls should all use flame retardant fabric, do not use lining. You must use the lining (pocket, reinforced cloth, etc.), the exposed area should be less than full lining retardant clothing exposed area within less than 20%; winter clothes or other special requirements for flame-retardant clothing, lining exposed within the area over all retardant clothing exposed area of 20%, should be made of the mask with detachable lining.
Qualified retardant overalls, each product must be marked with manufacturer's name (or factory mark), site, product names, trademarks, shape specifications, product grade, date of production; Each package shall specify the number, the product name, number type, grade, production units, date of manufacture, together with the product instructions. The product specification shall be flame retardant grade level, A grade 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.
Flame retardant properties overalls have some durability, so choose retardant overalls also need to pollution in the workplace determined by washing requirements, select the appropriate level of fire-retardant overalls. Retardant overalls for fire and explosion sites, so should normally choose to have flame retardant overalls performance for workers to provide more reliable protection. Operatives and similar types of work stations using fire-retardant overalls, should also have the effect of anti-oil. Cotton clothing made of the effect of preventing flammable, but not necessarily to achieve the required fire overalls single electric charge amount is less than 0.6μC clothing requirements, especially in the washing, due to the selection of detergents and other reasons, the effect which prevents flammable will decline, therefore, the choice of cotton fabric, flame retardant overalls, particularly in the northern dry areas, we must be careful.
1 the effect of humidity using anti-flammable dependence. Finishing by an anti-flammable, which is added in the spinning hydrophilic polymer (surfactant), the fabric easy to absorb moisture from the air, reduce the sheet resistance, reducing the accumulation of flammable, combustible timely release of the body.
(2) the use of conductive fibers. The fiber material is added anti-flammable agents and carbon black particles to become conductive fibers by blending, and cross, cross knitting, weaving or embedded woven methods to improve the conductivity of the fiber or fabric, flame retardant fabric generated, zgm09zd achieve charge dissipation to prevent accumulation of flammable.
3 in the amount of fibers mixed metal fiber blended fabric, the kind of fabric, good stability, resistance to washing.
Special labor protection supplies are included in the directory of the "flame-retardant overalls," is to prevent the accumulation of flammable overalls, flame retardant fabric for the fabric while sewing, suitable for wearing a fire or explosion hazard. Retardant fabric used mainly in the textile production process, the substantially homogeneously mixed with other interval or the whole or parts of metal or a conductive organic material or a flame retardant synthetic fibers, or a mixture interwoven . Classification
Any use as overalls, fire and explosion hazards in the workplace wearing clean overalls, flame retardant overalls, fire retardant cardigans, are included in the scope of management safety signs.
Retardant overalls technical requirements including structural, flame retardant, high strength three aspects.
Overalls production structure directly affect the flame retardant effect, therefore, the structural design of fire-retardant overalls must ensure that:
1. Overalls generally not use metal attachments, 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. Overalls should all use flame retardant fabric, do not use lining. You must use the lining (pocket, reinforced cloth, etc.), the exposed area should be less than full lining retardant clothing exposed area within less than 20%; winter clothes or other special requirements for flame-retardant clothing, lining exposed within the area over all retardant clothing exposed area of 20%, should be made of the mask with detachable lining.
Qualified retardant overalls, each product must be marked with manufacturer's name (or factory mark), site, product names, trademarks, shape specifications, product grade, date of production; Each package shall specify the number, the product name, number type, grade, production units, date of manufacture, together with the product instructions. The product specification shall be flame retardant grade level, A grade 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.
Flame retardant properties overalls have some durability, so choose retardant overalls also need to pollution in the workplace determined by washing requirements, select the appropriate level of fire-retardant overalls. Retardant overalls for fire and explosion sites, so should normally choose to have flame retardant overalls performance for workers to provide more reliable protection. Operatives and similar types of work stations using fire-retardant overalls, should also have the effect of anti-oil. Cotton clothing made of the effect of preventing flammable, but not necessarily to achieve the required fire overalls single electric charge amount is less than 0.6μC clothing requirements, especially in the washing, due to the selection of detergents and other reasons, the effect which prevents flammable will decline, therefore, the choice of cotton fabric, flame retardant overalls, particularly in the northern dry areas, we must be careful.
2013年9月9日星期一
The use of anti-static clothing and precautions
(1) all in normal circumstances, explosive gas mixture continuously, appears frequently short or long breaks and the presence of explosive gas mixtures are possible place, combustibles 0.25mj minimum ignition energy, the following should wear anti-static clothing.
(2) wear off in explosive areas prohibit anti-static clothing.
(3) prohibit the attachment of anti-static clothing or wearing any metal objects.
(4) wear anti-static clothing, you should also supporting the use of the anti-static shoes, but should also be a conductive ground floor.
(5) antistatic fabric clothing should be kept clean and maintain anti-static properties, after use with a soft brush, a soft cloth moistened with neutral detergent wash, do not damage clothing materials fibers.
(6) wearing a period of time to deal with anti-static clothing can be tested, if the anti-static performance does not meet the standard requirements, you can not prevent the use of static clothing
(2) wear off in explosive areas prohibit anti-static clothing.
(3) prohibit the attachment of anti-static clothing or wearing any metal objects.
(4) wear anti-static clothing, you should also supporting the use of the anti-static shoes, but should also be a conductive ground floor.
(5) antistatic fabric clothing should be kept clean and maintain anti-static properties, after use with a soft brush, a soft cloth moistened with neutral detergent wash, do not damage clothing materials fibers.
(6) wearing a period of time to deal with anti-static clothing can be tested, if the anti-static performance does not meet the standard requirements, you can not prevent the use of static clothing
Insulating protective equipment knowledge
1, insulated boots, heel ordinary boots, shoes, what is the difference?
Insulated boots, heel ordinary boots, shoes, different in design, insulated boots, shoes in the structural design of insulating materials made of rubber strip around the insulating layer to form a sealed insulation system to protect the feet. Ordinary boots, shoes is different, Common boots, shoe outsole with an insulating foam material is not used, a low insulation prone to leaking. Some leakage currents up to 30mA current far beyond security, only electrically insulated footwear by performance testing, after passing the factory. This requirement is not ordinary footwear.
2, the insulating protective suits Why should remain dry state wear?
Insulating protective equipment worn in a dry state, the user must pay attention to a big problem, because the insulating protective equipment if they contain a certain amount of water, so that the insulation resistance value of the volume resistivity and the surface is greatly reduced. Water is a conductor, the presence of the water, the insulation performance of the insulator greatly reduced or even destruction. Because the water of atoms angle ∠ HOH = 105 ° generating performance has a strong ion-conductive electrode, and then a lot of impurities in the water with heat, light, electrical, chemical changes under the action of generated energy conductor, and damage the insulation performance, so insulating protective equipment to keep dry, can greatly improve the safety performance.
3, the insulation performance of insulating protective equipment most important indicators of what is good or bad?
Insulating protective equipment (insulated boots, shoes, gloves, etc.) worn primarily intended to prevent an electrical shock is caused by the human body through the current, so the protective properties of the insulator mainly depends on the quality of a certain voltage leakage current through which the size, if Leakage current is within the safe range of current values is safe or unsafe. If a certain voltage is applied, although no cause breakdown, leakage current is too large, but also personal injury.
4, the insulating protective equipment Why should carry out preventive tests?
Preventive test, the power industry the strict rules to ensure personal safety foolproof. Some of the insulating protective equipment warranty period is relatively long, in such a long time, due to the aging effect caused by other conditions or storage change from the perspective of the user safety first before use preventive testing is a must. If you exceed three packs are insulated footwear can also be preventive test, after passing before use.
5, the test voltage with maximum use of what relationship?
Insulating protective equipment in the factory, by only a certain frequency AC voltage test, for example, used the occasion 5KV line voltage is 380V. The test voltage is to use a voltage 13.2-fold safety factor, but using different conditions and environment, countries are not the same. Reference to the United States empirical formula to determine the test voltage and the maximum use of relationships. According to the U.S. ASDTMD120-79 Recommended empirical formula: Maximum voltage = test voltage × 0.95-2000V
6, required to wear anti-static protective equipment environment, wearing anti-static protective equipment should also pay attention to what the future?
To anti-static environment is to prevent the flow of charge due to friction caused by the formation of the charge caused by electrostatic induction focused, high-voltage electrostatic discharge or cause harm. Wear anti-static protection products, can charge through timely manner to gather grounded anti-static products, but can not wear fur and other raw materials for underwear and socks, because they are insulated to prevent the body's electrostatic conductive ground. (Conductive shoes resistance value is not greater than 100KΩ-1000KΩ).
Insulated boots, heel ordinary boots, shoes, different in design, insulated boots, shoes in the structural design of insulating materials made of rubber strip around the insulating layer to form a sealed insulation system to protect the feet. Ordinary boots, shoes is different, Common boots, shoe outsole with an insulating foam material is not used, a low insulation prone to leaking. Some leakage currents up to 30mA current far beyond security, only electrically insulated footwear by performance testing, after passing the factory. This requirement is not ordinary footwear.
2, the insulating protective suits Why should remain dry state wear?
Insulating protective equipment worn in a dry state, the user must pay attention to a big problem, because the insulating protective equipment if they contain a certain amount of water, so that the insulation resistance value of the volume resistivity and the surface is greatly reduced. Water is a conductor, the presence of the water, the insulation performance of the insulator greatly reduced or even destruction. Because the water of atoms angle ∠ HOH = 105 ° generating performance has a strong ion-conductive electrode, and then a lot of impurities in the water with heat, light, electrical, chemical changes under the action of generated energy conductor, and damage the insulation performance, so insulating protective equipment to keep dry, can greatly improve the safety performance.
3, the insulation performance of insulating protective equipment most important indicators of what is good or bad?
Insulating protective equipment (insulated boots, shoes, gloves, etc.) worn primarily intended to prevent an electrical shock is caused by the human body through the current, so the protective properties of the insulator mainly depends on the quality of a certain voltage leakage current through which the size, if Leakage current is within the safe range of current values is safe or unsafe. If a certain voltage is applied, although no cause breakdown, leakage current is too large, but also personal injury.
4, the insulating protective equipment Why should carry out preventive tests?
Preventive test, the power industry the strict rules to ensure personal safety foolproof. Some of the insulating protective equipment warranty period is relatively long, in such a long time, due to the aging effect caused by other conditions or storage change from the perspective of the user safety first before use preventive testing is a must. If you exceed three packs are insulated footwear can also be preventive test, after passing before use.
5, the test voltage with maximum use of what relationship?
Insulating protective equipment in the factory, by only a certain frequency AC voltage test, for example, used the occasion 5KV line voltage is 380V. The test voltage is to use a voltage 13.2-fold safety factor, but using different conditions and environment, countries are not the same. Reference to the United States empirical formula to determine the test voltage and the maximum use of relationships. According to the U.S. ASDTMD120-79 Recommended empirical formula: Maximum voltage = test voltage × 0.95-2000V
6, required to wear anti-static protective equipment environment, wearing anti-static protective equipment should also pay attention to what the future?
To anti-static environment is to prevent the flow of charge due to friction caused by the formation of the charge caused by electrostatic induction focused, high-voltage electrostatic discharge or cause harm. Wear anti-static protection products, can charge through timely manner to gather grounded anti-static products, but can not wear fur and other raw materials for underwear and socks, because they are insulated to prevent the body's electrostatic conductive ground. (Conductive shoes resistance value is not greater than 100KΩ-1000KΩ).
2013年9月6日星期五
Fire retardant clothing and Development Strategy
Fireproof clothing is clothing worn by firefighters , must have good flame retardant and thermal protective performance , it can greatly reduce the extent of the fire burns in the body , increase in the fire to save the opportunity to save material , and thus retardant , separated thermal performance flame retardant protective clothing is essential for performance. Also in the flutter
Fire scene , high temperature, heat, firefighters volume of the activities , perspiration , such as the body's heat can not be dissipated easily lead to heat accumulation , reducing the resilience of firefighters , fire service so comfort is crucial the . Therefore , research and development both good flame retardant,
Have excellent insulation properties fireproof clothing comfort there is an existing social economic issues , there are broad prospects for development.
2 Flame Retardant Fabric
2.1 retardant fabric processing
flame retardant fabric processing , there are two methods: ( 1 ) adding chemical additives in the fiber or fabric flame retardant treatment , that is the adsorption deposition, chemical bonding , van der Waals forces or non- polar bonding role of the flame fixed to the fabric or yarn , to obtain a deodorizing antibacterial cloth flame retardant effect . ( 2 ) improve the thermal stability of the fiber-forming polymer : To improve the pyrolysis temperature of combustible gas generation inhibition , increased degree of carbonization , the fiber easily ignited , such as the introduction of the macromolecular chains in an aromatic ring or aromatic heterocyclic ring , linear macromolecules the reaction between the three-dimensional crosslinked structure becomes . The first method depends on the development of flame development and improvement process ; second approach is the development of high performance fibers and some linked. Next, flame retardants and some new fiber to be introduced.
2.1.1 is a flame retardant polymer materials can reduce the combustion properties of the material, is mainly used to reduce the flammability of materials in flames , slowing the speed of spread of flame , the flame so that the material can be removed after fast self-extinguishing , no smoldering . Many different types of flame retardants , the most commonly used flame retardants based on the periodic table of the first family of boron and aluminum Ó first Ô family of nitrogen, phosphorus, antimony , bismuth ; Ö family of sulfur ; first × family and some of the chlorine and bromine -based flame retardant elements of certain compounds . Furthermore magnesium, barium, zinc , tin , titanium, iron , zirconium and molybdenum compounds have a number of applications, and most of the organic phosphorus based flame retardant and bromine as the central element. By the presence of flame retardants in the polymer morphology can be divided into added
Type and reactive types . Flame retardant , a flame retardant when used, are dispersed in the polymer or coating the surface of the polymer , which does not react with the polymer , the mixture is physical dispersion . And the reaction is often used as a flame retardant component in the polymerization reaction , or can react with the polymer , a chemical bond between them , a flame retardant can be present in the long-term stability within the material and not leaking drain . Two kinds of flame retardants have advantages and disadvantages , flame retardant or inappropriate by repeated washing after washing , flame effect will be reduced, but its ease of use, wide applicability , quick ; reactive additives research, development requires a lot of money , manpower, material resources , and its results are often only involves a variety of flame retardant issues , the application range is small, so the use of more than additive . Choose flame retardant fibers and textiles due to the variety and characteristics of the different manufacturing process , requiring low toxicity , high efficiency, smoky small, and does not substantially reduce the principal textile fibers and wearability ( such as strength , feel , dyeability etc. ) , in addition to the use of flame retardants synergies choose a variety of flame retardant compound , can improve the flame-retardant effect , reducing the amount of flame retardants , reduce costs and avoid the deterioration of mechanical properties of the fiber , has great practical significance.
2.1.2 New flame retardant fiber fiber can be divided into congenital and additive . Congenital flame retardant fiber is the molecular structure of the fiber itself due to reasons, and is flame-retardant , which is characterized by : durable flame retardant , high thermal stability , good chemical resistance properties,
Regain high , comfortable and so on, these products tend to have higher prices , the following types of applications more permanent press fabrics crease-resistant fiber to be introduced. Meta- aramid fiber (Nomex), our country is called Aramid 1313 , is the United States in the 1960s DuPont invented and put into use , is a good high-temperature flame-retardant fiber , 200e can maintain the original strength about 80% , 260e 100 h under continuous use still maintain the original strength of 65% to 70% , and in the formation of the barrier between the body and clothes , reduce the heat transfer effect, providing protection , the ability of the majority of the role of acid , alkali the stability is also very good , because of its outstanding performance and broad market prospects , countries have carried out research and development, Teijin company began in the 1980s to produce the same product , and was named Te-ijincomex fiber , the current annual production of 3000 t; Ronaldo , France in the early 1990s the company started up Kermel fiber, annual production of about 600 t; BASF in the late 1990s in the United States put into Basosil fiber production is about 450 t. Polybenzimidazole fibers ( referred PBI), by the United States Air Mechanics Materials Laboratory (AFNL) developed in partnership with Celease another high-performance flame-retardant fiber , the fiber is made from isophthalic acid diphenyl ethers (DPIP) and four amino biphenyl, obtained by solid phase polymerization PBI polymer , and then spinning shape. PBI fibers do not burn in air , the limiting oxygen index of 40 , far more than Nomex (LOI value of 20 to 30 ) , in the long time exposure to the flame 600e , fiber shrinkage is only 10%. The fabric still intact , soft, good thermal stability of the fibers , 550e does not melt at high temperatures , do not smoke , do not release toxic gases, chemical resistance and good moisture regain of 15% , taking good , comfortable to wear. In addition, phenolic fiber, polyphenylene sulfide fiber microphone , pre-oxidized polyacrylonitrile fibers. The second category is the conventional synthetic fiber with flame retardant properties , such as flame-retardant polyester , flame retardant acrylic , etc., these fiber textile processing easy, inexpensive , at only require flame retardant fabrics in industrial applications , and as a high prices retardant, heat-resistant fiber compatibility fibers. Currently , high-performance flame retardant, heat-resistant fiber development and research is very active in the developed world , the United States , Japan, Europe and other countries, many special military services , has high temperature flame retardant Nomex and other apparel as active duty military uniforms . Of flame retardant overalls, heat-resistant fiber production , the species , the two categories have a pilot scale , but the product quality indicators unstable performance compared with other countries , there is a large gap between product development applications not wide , has not yet formed mass production.
Fire scene , high temperature, heat, firefighters volume of the activities , perspiration , such as the body's heat can not be dissipated easily lead to heat accumulation , reducing the resilience of firefighters , fire service so comfort is crucial the . Therefore , research and development both good flame retardant,
Have excellent insulation properties fireproof clothing comfort there is an existing social economic issues , there are broad prospects for development.
2 Flame Retardant Fabric
2.1 retardant fabric processing
flame retardant fabric processing , there are two methods: ( 1 ) adding chemical additives in the fiber or fabric flame retardant treatment , that is the adsorption deposition, chemical bonding , van der Waals forces or non- polar bonding role of the flame fixed to the fabric or yarn , to obtain a deodorizing antibacterial cloth flame retardant effect . ( 2 ) improve the thermal stability of the fiber-forming polymer : To improve the pyrolysis temperature of combustible gas generation inhibition , increased degree of carbonization , the fiber easily ignited , such as the introduction of the macromolecular chains in an aromatic ring or aromatic heterocyclic ring , linear macromolecules the reaction between the three-dimensional crosslinked structure becomes . The first method depends on the development of flame development and improvement process ; second approach is the development of high performance fibers and some linked. Next, flame retardants and some new fiber to be introduced.
2.1.1 is a flame retardant polymer materials can reduce the combustion properties of the material, is mainly used to reduce the flammability of materials in flames , slowing the speed of spread of flame , the flame so that the material can be removed after fast self-extinguishing , no smoldering . Many different types of flame retardants , the most commonly used flame retardants based on the periodic table of the first family of boron and aluminum Ó first Ô family of nitrogen, phosphorus, antimony , bismuth ; Ö family of sulfur ; first × family and some of the chlorine and bromine -based flame retardant elements of certain compounds . Furthermore magnesium, barium, zinc , tin , titanium, iron , zirconium and molybdenum compounds have a number of applications, and most of the organic phosphorus based flame retardant and bromine as the central element. By the presence of flame retardants in the polymer morphology can be divided into added
Type and reactive types . Flame retardant , a flame retardant when used, are dispersed in the polymer or coating the surface of the polymer , which does not react with the polymer , the mixture is physical dispersion . And the reaction is often used as a flame retardant component in the polymerization reaction , or can react with the polymer , a chemical bond between them , a flame retardant can be present in the long-term stability within the material and not leaking drain . Two kinds of flame retardants have advantages and disadvantages , flame retardant or inappropriate by repeated washing after washing , flame effect will be reduced, but its ease of use, wide applicability , quick ; reactive additives research, development requires a lot of money , manpower, material resources , and its results are often only involves a variety of flame retardant issues , the application range is small, so the use of more than additive . Choose flame retardant fibers and textiles due to the variety and characteristics of the different manufacturing process , requiring low toxicity , high efficiency, smoky small, and does not substantially reduce the principal textile fibers and wearability ( such as strength , feel , dyeability etc. ) , in addition to the use of flame retardants synergies choose a variety of flame retardant compound , can improve the flame-retardant effect , reducing the amount of flame retardants , reduce costs and avoid the deterioration of mechanical properties of the fiber , has great practical significance.
2.1.2 New flame retardant fiber fiber can be divided into congenital and additive . Congenital flame retardant fiber is the molecular structure of the fiber itself due to reasons, and is flame-retardant , which is characterized by : durable flame retardant , high thermal stability , good chemical resistance properties,
Regain high , comfortable and so on, these products tend to have higher prices , the following types of applications more permanent press fabrics crease-resistant fiber to be introduced. Meta- aramid fiber (Nomex), our country is called Aramid 1313 , is the United States in the 1960s DuPont invented and put into use , is a good high-temperature flame-retardant fiber , 200e can maintain the original strength about 80% , 260e 100 h under continuous use still maintain the original strength of 65% to 70% , and in the formation of the barrier between the body and clothes , reduce the heat transfer effect, providing protection , the ability of the majority of the role of acid , alkali the stability is also very good , because of its outstanding performance and broad market prospects , countries have carried out research and development, Teijin company began in the 1980s to produce the same product , and was named Te-ijincomex fiber , the current annual production of 3000 t; Ronaldo , France in the early 1990s the company started up Kermel fiber, annual production of about 600 t; BASF in the late 1990s in the United States put into Basosil fiber production is about 450 t. Polybenzimidazole fibers ( referred PBI), by the United States Air Mechanics Materials Laboratory (AFNL) developed in partnership with Celease another high-performance flame-retardant fiber , the fiber is made from isophthalic acid diphenyl ethers (DPIP) and four amino biphenyl, obtained by solid phase polymerization PBI polymer , and then spinning shape. PBI fibers do not burn in air , the limiting oxygen index of 40 , far more than Nomex (LOI value of 20 to 30 ) , in the long time exposure to the flame 600e , fiber shrinkage is only 10%. The fabric still intact , soft, good thermal stability of the fibers , 550e does not melt at high temperatures , do not smoke , do not release toxic gases, chemical resistance and good moisture regain of 15% , taking good , comfortable to wear. In addition, phenolic fiber, polyphenylene sulfide fiber microphone , pre-oxidized polyacrylonitrile fibers. The second category is the conventional synthetic fiber with flame retardant properties , such as flame-retardant polyester , flame retardant acrylic , etc., these fiber textile processing easy, inexpensive , at only require flame retardant fabrics in industrial applications , and as a high prices retardant, heat-resistant fiber compatibility fibers. Currently , high-performance flame retardant, heat-resistant fiber development and research is very active in the developed world , the United States , Japan, Europe and other countries, many special military services , has high temperature flame retardant Nomex and other apparel as active duty military uniforms . Of flame retardant overalls, heat-resistant fiber production , the species , the two categories have a pilot scale , but the product quality indicators unstable performance compared with other countries , there is a large gap between product development applications not wide , has not yet formed mass production.
How to choose the fabric flame retardant protective clothing
Select fireproof retardant protective clothing manufacturer , the supplier shall obtain inspection reports, test reports view product characteristics, production batch , production date , paste cloth-like ( for the products should be consistent with ) , and to obtain samples supplier material for future reference. Verify its quality , including check , see, touch , smell, try five steps:
◆ check check retardant protective clothing three anti-cloth inner , outer , all trademarks , special labor protection supplies safety signs are complete , accurate, with washing , maintenance, maintenance manual.
◆ Check to see the appearance of flame retardant fabric protective clothing should be no surface defects, breakage and suture defects. The structure shall be flame-retardant overalls collar, cuffs , hem three -tight to prevent sparks or hot kiss body splash , bodily injury. Ming pocket with flap should avoid accumulating a splash of metal or sparks. And stay for the heat vent should be in the armpit , back, hip medial prevent foreign objects to enter.
◆ touch good quality fire-retardant protective clothing feels softer feel , does not irritate the skin.
◆ some unqualified flame retardants olfactory some toxicity, and there is a certain smell. The flame-retardant protective bag obedience sniffing out , there should be no odor or irritating odor.
◆ Try multifunctional composite fabric flame retardant protective clothing, bags and ornaments, should not affect the normal work ; two try- off is easy, fast and should be able to quickly detachable .
◆ check check retardant protective clothing three anti-cloth inner , outer , all trademarks , special labor protection supplies safety signs are complete , accurate, with washing , maintenance, maintenance manual.
◆ Check to see the appearance of flame retardant fabric protective clothing should be no surface defects, breakage and suture defects. The structure shall be flame-retardant overalls collar, cuffs , hem three -tight to prevent sparks or hot kiss body splash , bodily injury. Ming pocket with flap should avoid accumulating a splash of metal or sparks. And stay for the heat vent should be in the armpit , back, hip medial prevent foreign objects to enter.
◆ touch good quality fire-retardant protective clothing feels softer feel , does not irritate the skin.
◆ some unqualified flame retardants olfactory some toxicity, and there is a certain smell. The flame-retardant protective bag obedience sniffing out , there should be no odor or irritating odor.
◆ Try multifunctional composite fabric flame retardant protective clothing, bags and ornaments, should not affect the normal work ; two try- off is easy, fast and should be able to quickly detachable .
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