WO2023014334A1 - Elastic flame retardant yarn and fabric consisting of this yarn - Google Patents

Elastic flame retardant yarn and fabric consisting of this yarn Download PDF

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Publication number
WO2023014334A1
WO2023014334A1 PCT/TR2022/050819 TR2022050819W WO2023014334A1 WO 2023014334 A1 WO2023014334 A1 WO 2023014334A1 TR 2022050819 W TR2022050819 W TR 2022050819W WO 2023014334 A1 WO2023014334 A1 WO 2023014334A1
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WO
WIPO (PCT)
Prior art keywords
flame retardant
yarn
fabric
fiber
elastic
Prior art date
Application number
PCT/TR2022/050819
Other languages
French (fr)
Inventor
Fatih ÇETİN
Erkan EKİCİ
Halil Yilmaz
Michael D. Strader
Original Assignee
Coats (Türki̇ye) İpli̇k Sanayi̇i̇ Anoni̇m Şi̇rketi̇
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Priority claimed from TR2021/012364 external-priority patent/TR2021012364A1/en
Application filed by Coats (Türki̇ye) İpli̇k Sanayi̇i̇ Anoni̇m Şi̇rketi̇ filed Critical Coats (Türki̇ye) İpli̇k Sanayi̇i̇ Anoni̇m Şi̇rketi̇
Publication of WO2023014334A1 publication Critical patent/WO2023014334A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0035—Protective fabrics
    • D03D1/0058—Electromagnetic radiation resistant
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/54—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads coloured
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • D10B2321/101—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide modacrylic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/16—Physical properties antistatic; conductive

Definitions

  • the present invention relates to elastic yarn that protects against heat, flame and arc flash, and the fabric that provides freedom of movement to the user with its elastic structure consisting of this elastic flame retardant yarn.
  • the invention particularly comprises the elastic flame retardant yarn formed by the elastic fiber used in the structure and a fabric that is much more flexible and provides high comfort properties to the user thanks to this yarn.
  • Flame retardant fabrics for industrial protective clothing can be produced by two different methods.
  • the first is the method of applying FR finishing to fabrics consisting of ordinary cotton or polyester-cotton mixture.
  • the transfer of the finishing material to the product by passing the textile product through a boiler or treating it for a while is called chemical finishing. After the finishing material is dissolved in a liquid, it is transferred to the material in a finishing machine operating by the impregnation or extraction method.
  • This method has a certain washing resistance.
  • the life of the product is as long as the resistance of the finish on it.
  • FR materials used in finishing are likely to have negative effects on the environment and release toxic or toxic gases depending on the temperature.
  • the second is with the production of fabric from fibers with inherent FR properties. Fabrics produced in this way maintain their flame retardancy properties throughout the product life. In addition, it does not lose these properties with washing. However, since these fabrics are not flexible enough, they restrict the user's movement.
  • the main purpose of a flame retardant product is to prevent combustion. However, the product should be comfortable and not restrict user’s movement. While creating the product, the product is light, its flame retardant feature is effective, and the permanence period of this feature is long; It should be resistant to multiple washing, drying and industrial washing, and it should also be environmentally friendly.
  • the textile material on the basis of produced fiber, chemical substance and fabric can fulfill many functions together instead of providing a single function.
  • Multifunctional textiles such as oil and water repellent flame retardant textile products, flame retardant textile products with antistatic properties, and flame retardant textiles with anti-crease properties are demanded today.
  • the patent document No JP2019183299 discloses a spun yarn containing flame retardant fibers and a composite fiber in which the two components are glued together in a side-by-side type or an eccentric core-sheath type, and a fabric produced from this fiber.
  • composite fiber is used and this fiber is folded in two layers, and by this way, the fabric structure is formed. With this use, the cost of fabric production increases, becomes heavier and there is no solution for the production of flame-retardant elastic yarn and fabric.
  • JP2020105639A relates to a fabric and a textile product formed using a spun yarn containing a flame retardant fiber, a conductive yarn and a stretchable flexible yarn.
  • Elasticity is provided by using polyurethane filament as a two-layer elastic core filament. The use of two layers increases the cost. Again in this document, there is no solution for obtaining flame retardant elastic yarn and fabric.
  • the patent document No. US20200085122A1 is relates to a yarn containing regenerated cellulose fibers and a fabric formed from this yarn. These regenerated cellulose fibers contain a flame retardant compound within the fiber.
  • Regenerated cellulose fibers consist of rayon fibers, lyocell fibers and their mixtures.
  • synthetic fibers comprises one or mixtures of polyamide fibers, polyester fibers, meta-aramid fibers, polyoxadiazole fibers, acrylic fibers, polyvinyl alcohol fibers, modacrylic fibers. With this patent, elasticity and ease of use cannot be achieved in the fabric.
  • the main purpose of the present invention is to obtain a yarn and a fabric made from this yarn, which provides high comfort, freedom of movement and protection to the user, which has a high protective feature against heat, flame and arc flash and also has elasticity feature.
  • Another aim of the invention is to provide a fabric that provides high comfort to the user, preferably with 15% flexibility, and a product made of this fabric.
  • Another aim of the invention is to create a yarn containing fibers with FR properties directly without using FR finishing material, and to produce a fabric from this yarn to create an environmentally friendly and low-cost product that provides high protection.
  • Another aim of the invention is to provide a fabric that provides high protection against heat, flame and arc flash and is comfortable to use with the minimum possible weight.
  • Another aim of the invention is to provide ergonomics with products made by using flame retardant elastic fabric with maximum protection with low weight.
  • Another aim of the invention is to increase user visibility and prevent possible work accidents with the orange color used in the invention.
  • the invention is an elastic flame retardant yarn comprising a synthetic fiber providing elasticity and a mixture of flame retardant fiber wherein the synthetic fiber is a polyolefin based fiber.
  • This flame retardant fiber contains 50-60% by weight of meta aramid fiber, 35-45% by weight of modacrylic fiber, 3-10% by weight of para aramid fiber and 0.1 -1 .5% by weight of anti-static fiber.
  • the invention in its alternative embodiment, is to produce an elastic flame retardant yarn using yarn spinning technology.
  • core spun technology is used as the spinning technology.
  • the invention is that the elastic flame retardant yarn for an elastic flame retardant fabric is preferably knitted and the fabric weave is made of 2/1 twill weave.
  • the invention is also an elastic flame retardant fabric with a weight of 170-208 gr/m 2 , an elasticity level of 10-20% and an ATPV value of 8-25 cal/cm 2 according to the ASTM F1959 standard.
  • the present invention discloses the elastic yarn (10), which has a protective feature against heat, flame and arc flash, and the fabric (13) that provides freedom of movement to the user with its elastic structure consisting of this elastic flame retardant yarn (10).
  • the subject of the invention is based on the production of elastic flame retardant yarn (10), flame retardant fiber blend (1 1 ) and synthetic fiber (12), preferably with core spun technology as a spinning technology.
  • the fiber detail view of the elastic flame retardant yarn (10) is shown in Figure 1 .
  • the structure of the yarn (10) is presented in the form of fibers.
  • the synthetic fiber (12), which is the core fiber of the yarn (10), is preferably a polyolefin-based synthetic fiber.
  • Elastic flame retardant yarn (10) is obtained by wrapping this synthetic fiber (12) with a flame retardant fiber blend (1 1 ) with core spun technology.
  • the yarn (10) gains elasticity as well as resistance to industrial washing, temperature and mechanical effects with this polyolefin-based synthetic fiber (12).
  • Lycra feed is applied in the form of 3.7 draft for the desired elasticity feature of the synthetic fiber (12).
  • the lycra is extended 370% and placed in the center of the yarn (10).
  • the elasticity level should be between 10-20%, but 15% is preferred to provide an optimum balance between comfort and protection.
  • a higher level of elasticity than the given ranges will increase comfort, but it poses a risk in cases where it is exposed to flame as it will wrap the body of the user.
  • the clothing is exposed to flame and this clothing is too elastic, if it covers the skin of the users, its protection is less due to direct contact.
  • the protection increases as there will be no direct contact with the skin.
  • the isolation effect of the air in the space between the skin and the fabric also positively affects the protection.
  • mixing ratios by weight of flame retardant fiber (1 1) contains 50-60% meta aramid fiber, 35-45% modacrylic fiber, 3-10% para aramid fiber, 0.1 -1 .5% anti-static fiber.
  • the antistatic fiber, used in the invention contains nylon or polyester/carbon bicomponent fiber. In other words, it is obtained by placing conductive carbon particles with different designs on the PES or Nylon fiber body.
  • the use of this fiber for the invention is to prevent electrification due to static charge, and to prevent flares and flame intensification if there is flammable gas, etc., due to this electrification.
  • An arc flash is an electrical accident that causes a high temperature (1400-2000°C) explosion.
  • the flame retardant fiber blend (11 ), used in the invention should be between 8-25 cal/cm 2 of ATPV (Arc Thermal Performance Value) according to 11612 cert NFPA, 2112 cert and ASTM F1959 standards, which includes European and USA fireproofing certification and USA arc flash protection performance tests.
  • the yarn (10) and fabric (13) produced with the flame retardant fiber mixture (1 1 ) used in the invention have a value of 8.1 cal/cm 2 according to these standards.
  • knitted fabric (13) is formed in the form of knitting preferably 2/1 twill.
  • the detail of the knitting shape forming the elastic flame retardant fabric (13) shown in Figure 2 and the side section view of this knitting shape is given in Figure 3.
  • the formed elastic flame retardant fabric (13) has a weight of 170-208 gr/cm 2 . It is known that dark colored products such as navy blue and black obtain higher test results in arc flash test due to the effect of the pigment in dark dyestuffs. In the developed fabric (13), orange color is preferably used to increase visibility. Despite this color used, arc flash test results are suitable.
  • This fabric (13) succeeds in all these performance tests with its weight of 207.38 gr/m2.
  • the lightness of the fabric (13) also positively affects its comfort properties.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Woven Fabrics (AREA)

Abstract

The present invention relates to elastic yarn that protects against heat, flame and arc flash, and the fabric that provides freedom of movement to the user with its elastic structure consisting of this elastic flame retardant yarn.

Description

ELASTIC FLAME RETARDANT YARN AND FABRIC CONSISTING OF THIS YARN
Technical Field
The present invention relates to elastic yarn that protects against heat, flame and arc flash, and the fabric that provides freedom of movement to the user with its elastic structure consisting of this elastic flame retardant yarn.
Besides providing all the protective features against heat, flame and arc flash, the invention particularly comprises the elastic flame retardant yarn formed by the elastic fiber used in the structure and a fabric that is much more flexible and provides high comfort properties to the user thanks to this yarn.
Prior Art
Recently, the increase in industrialization has made people's safety an important issue. Measures to be taken to minimize the loss of life and property caused by fires in the industry have gained importance. One of them is the use of non-combustible or fire retardant materials. In this context, the necessity of using flame-retardant fibers or performing various flame-retardant processes on the fabric gains importance in all situations that require protection against flame, heat and arc flashes.
Flame retardant fabrics for industrial protective clothing can be produced by two different methods. The first is the method of applying FR finishing to fabrics consisting of ordinary cotton or polyester-cotton mixture. The transfer of the finishing material to the product by passing the textile product through a boiler or treating it for a while is called chemical finishing. After the finishing material is dissolved in a liquid, it is transferred to the material in a finishing machine operating by the impregnation or extraction method. This method has a certain washing resistance. However, as a result of finishing, there is a possibility of loss of strength values while a certain color change and hardness occur in the fabric. In addition, the life of the product is as long as the resistance of the finish on it. FR materials used in finishing are likely to have negative effects on the environment and release toxic or toxic gases depending on the temperature. The second is with the production of fabric from fibers with inherent FR properties. Fabrics produced in this way maintain their flame retardancy properties throughout the product life. In addition, it does not lose these properties with washing. However, since these fabrics are not flexible enough, they restrict the user's movement. The main purpose of a flame retardant product is to prevent combustion. However, the product should be comfortable and not restrict user’s movement. While creating the product, the product is light, its flame retardant feature is effective, and the permanence period of this feature is long; It should be resistant to multiple washing, drying and industrial washing, and it should also be environmentally friendly. Since being sensitive to the environment has become very important in the 21 st century, the use of halogens and other dangerous substances used in flame retardant materials has been banned, reduced or tried to be prevented. Today, the absence of toxic properties and the low cost are the features expected from a non-flammable product.
Considering the demands of the consumers, it is among the demands that the textile material on the basis of produced fiber, chemical substance and fabric can fulfill many functions together instead of providing a single function. For example; Multifunctional textiles such as oil and water repellent flame retardant textile products, flame retardant textile products with antistatic properties, and flame retardant textiles with anti-crease properties are demanded today. In addition to a good flame retardant effect of the flame retardant textile product; it is also among the expectations that it does not have allergic effects and toxic properties, is environmentally friendly, is resistant to washing and dry cleaning many times, does not cause yellowing, does not release toxic gases during combustion in an oxygen-free environment, does not deteriorate the technological properties of the fiber and the price is affordable.
As a result of this situation, some of the developed techniques are given below.
In the utility model document No. CN212051778U, a yarn formed by blending aramid fibers and conductive fibers and a fabric made of this yarn is mentioned. According to the utility model, the threads are coiled around the outer circumference of the zinc fibers in a gradual way. The production of textile fabric with permanent flame retardancy, breathability and anti-static function is mentioned by using the flame retardant, anti-static core yarn provided with the utility model. However, in this document, there is no mention of elasticity as well as flame retardancy and there is no solution to the comfort of use.
The patent document No JP2019183299 discloses a spun yarn containing flame retardant fibers and a composite fiber in which the two components are glued together in a side-by-side type or an eccentric core-sheath type, and a fabric produced from this fiber. However, in this patent, composite fiber is used and this fiber is folded in two layers, and by this way, the fabric structure is formed. With this use, the cost of fabric production increases, becomes heavier and there is no solution for the production of flame-retardant elastic yarn and fabric.
The patent document No. JP2020105639A relates to a fabric and a textile product formed using a spun yarn containing a flame retardant fiber, a conductive yarn and a stretchable flexible yarn. Elasticity is provided by using polyurethane filament as a two-layer elastic core filament. The use of two layers increases the cost. Again in this document, there is no solution for obtaining flame retardant elastic yarn and fabric.
The patent document No. US20200085122A1 is relates to a yarn containing regenerated cellulose fibers and a fabric formed from this yarn. These regenerated cellulose fibers contain a flame retardant compound within the fiber. Regenerated cellulose fibers; consist of rayon fibers, lyocell fibers and their mixtures. According to the document, synthetic fibers comprises one or mixtures of polyamide fibers, polyester fibers, meta-aramid fibers, polyoxadiazole fibers, acrylic fibers, polyvinyl alcohol fibers, modacrylic fibers. With this patent, elasticity and ease of use cannot be achieved in the fabric.
As a result, there is a need to produce elastic flame retardant yarn and fabric using this yarn in order to eliminate the above-mentioned problems in the current art.
Objectives and Brief Description of the Invention
The main purpose of the present invention is to obtain a yarn and a fabric made from this yarn, which provides high comfort, freedom of movement and protection to the user, which has a high protective feature against heat, flame and arc flash and also has elasticity feature.
Another aim of the invention is to provide a fabric that provides high comfort to the user, preferably with 15% flexibility, and a product made of this fabric.
Another aim of the invention is to create a yarn containing fibers with FR properties directly without using FR finishing material, and to produce a fabric from this yarn to create an environmentally friendly and low-cost product that provides high protection.
Another aim of the invention is to provide a fabric that provides high protection against heat, flame and arc flash and is comfortable to use with the minimum possible weight.
Other aim of the invention is to provide ergonomics with products made by using flame retardant elastic fabric with maximum protection with low weight.
Another aim of the invention is to increase user visibility and prevent possible work accidents with the orange color used in the invention.
Further aim of the invention is to use the fabric produced in protective clothing, fire protection clothing, firefighting clothing, rescue clothing, work clothing, police uniform, soldier clothing. In order to realize the above-mentioned purposes, the invention is an elastic flame retardant yarn comprising a synthetic fiber providing elasticity and a mixture of flame retardant fiber wherein the synthetic fiber is a polyolefin based fiber.
This flame retardant fiber contains 50-60% by weight of meta aramid fiber, 35-45% by weight of modacrylic fiber, 3-10% by weight of para aramid fiber and 0.1 -1 .5% by weight of anti-static fiber.
The invention, in its alternative embodiment, is to produce an elastic flame retardant yarn using yarn spinning technology. In this preferred embodiment, core spun technology is used as the spinning technology.
The invention is that the elastic flame retardant yarn for an elastic flame retardant fabric is preferably knitted and the fabric weave is made of 2/1 twill weave.
The invention is also an elastic flame retardant fabric with a weight of 170-208 gr/m2, an elasticity level of 10-20% and an ATPV value of 8-25 cal/cm2 according to the ASTM F1959 standard.
Brief Description of the Figures
In Figure 1 ; fiber details of inventive elastic flame retardant yarn is given.
In Figure 2; top detail of the knitting shape forming the elastic flame retardant fabric is given.
In Figure 3, a side-sectional view of the knitting shape that forms the elastic flame retardant fabric is given.
Reference Numbers
10. Elastic flame retardant yarn
1 1 . Flame retardant fiber blend
12. Synthetic fiber
13. Fabric
Detailed Description of the Invention
The present invention discloses the elastic yarn (10), which has a protective feature against heat, flame and arc flash, and the fabric (13) that provides freedom of movement to the user with its elastic structure consisting of this elastic flame retardant yarn (10).
The subject of the invention is based on the production of elastic flame retardant yarn (10), flame retardant fiber blend (1 1 ) and synthetic fiber (12), preferably with core spun technology as a spinning technology. The fiber detail view of the elastic flame retardant yarn (10) is shown in Figure 1 . The structure of the yarn (10) is presented in the form of fibers. The synthetic fiber (12), which is the core fiber of the yarn (10), is preferably a polyolefin-based synthetic fiber. Elastic flame retardant yarn (10) is obtained by wrapping this synthetic fiber (12) with a flame retardant fiber blend (1 1 ) with core spun technology.
The yarn (10) gains elasticity as well as resistance to industrial washing, temperature and mechanical effects with this polyolefin-based synthetic fiber (12). Lycra feed is applied in the form of 3.7 draft for the desired elasticity feature of the synthetic fiber (12). In other words, the lycra is extended 370% and placed in the center of the yarn (10). The elasticity level should be between 10-20%, but 15% is preferred to provide an optimum balance between comfort and protection. A higher level of elasticity than the given ranges will increase comfort, but it poses a risk in cases where it is exposed to flame as it will wrap the body of the user. When the clothing is exposed to flame and this clothing is too elastic, if it covers the skin of the users, its protection is less due to direct contact. On the other hand, in clothes that are relatively less elastic and cover the users less, the protection increases as there will be no direct contact with the skin. In addition, the isolation effect of the air in the space between the skin and the fabric also positively affects the protection.
In the preferred embodiment of the invention, mixing ratios by weight of flame retardant fiber (1 1) contains 50-60% meta aramid fiber, 35-45% modacrylic fiber, 3-10% para aramid fiber, 0.1 -1 .5% anti-static fiber. The antistatic fiber, used in the invention, contains nylon or polyester/carbon bicomponent fiber. In other words, it is obtained by placing conductive carbon particles with different designs on the PES or Nylon fiber body. The use of this fiber for the invention is to prevent electrification due to static charge, and to prevent flares and flame intensification if there is flammable gas, etc., due to this electrification. An arc flash is an electrical accident that causes a high temperature (1400-2000°C) explosion. An accident that vaporizes surrounding metals, starts a fire, and can cause serious burns. Therefore, the flame retardant fiber blend (11 ), used in the invention, should be between 8-25 cal/cm2 of ATPV (Arc Thermal Performance Value) according to 11612 cert NFPA, 2112 cert and ASTM F1959 standards, which includes European and USA fireproofing certification and USA arc flash protection performance tests. The yarn (10) and fabric (13) produced with the flame retardant fiber mixture (1 1 ) used in the invention have a value of 8.1 cal/cm2 according to these standards.
With the elastic flame retardant yarn (10) of the invention, knitted fabric (13) is formed in the form of knitting preferably 2/1 twill. The detail of the knitting shape forming the elastic flame retardant fabric (13) shown in Figure 2 and the side section view of this knitting shape is given in Figure 3. With this usage and knitted structure, flexibility is provided to the fabric (13) and its flame retardancy is supported by the hollow structure and air formed in between. The formed elastic flame retardant fabric (13) has a weight of 170-208 gr/cm2. It is known that dark colored products such as navy blue and black obtain higher test results in arc flash test due to the effect of the pigment in dark dyestuffs. In the developed fabric (13), orange color is preferably used to increase visibility. Despite this color used, arc flash test results are suitable. This fabric (13) succeeds in all these performance tests with its weight of 207.38 gr/m2. An important feature of the fabric (13) developed with this result, which distinguishes it from similar ones belonging to the prior art, is that the desired ATPV value has been achieved against arc flash with a light color such as orange. If a dark blue or black color were preferred instead of this orange color, the same values can be obtained with a fabric weighing 170-180 gr/m2, not 207.38 gr/m2. In addition to its elastic feature, the lightness of the fabric (13) also positively affects its comfort properties.
A fabric (13) that provides the user with extra movement space and comfort through its elastic structure, and that provides protection through its flame retardant feature, has been developed.

Claims

CLAIMS An elastic flame retardant yarn (10) comprising a synthetic fiber (12) providing elasticity and a mixture of flame retardant fiber (11) characterized in that the synthetic fiber (12) is a polyolefin based fiber. The elastic flame retardant yarn (10) according to Claim 1 wherein the flame retardant fiber (11 ) comprises 50-60% by weight of meta aramid fiber, 35-45% by weight of modacrylic fiber, 3-10% by weight of para aramid fiber and 0,1 -1 ,5% by weight of antistatic fiber. The elastic flame retardant yarn (10) according to the previous claims wherein it is spined by using core spun technology. An elastic flame retardant fabric (13) characterized in that it comprises the yarn (10) according to the Claims 1 to 4 in the form of knitting. The elastic flame retardant fabric (13) according to claim 4 wherein the fabric weave is made of 2/1 twill weave. The elastic flame retardant fabric (13) according to claim 4 wherein the fabric weight is in the range of 170-208 gr/m2. The elastic flame retardant fabric (13) according to claim 4 wherein the fabric elasticity ratio is in the range of 10-20%. The elastic flame retardant fabric (13) according to claim 4 wherein the ATPV value is in the range of 8-25 cal/cm2 pursuant to the ASTM F1959 standard.
7
PCT/TR2022/050819 2021-08-04 2022-08-03 Elastic flame retardant yarn and fabric consisting of this yarn WO2023014334A1 (en)

Applications Claiming Priority (2)

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TR2021012364 2021-08-04
TR2021/012364 TR2021012364A1 (en) 2021-08-04 ELASTIC STRENGTH FLAMMABLE YARN AND THE FABRIC COMPOSED OF THIS YARN

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6410140B1 (en) * 1999-09-28 2002-06-25 Basf Corporation Fire resistant corespun yarn and fabric comprising same
JP2005213708A (en) * 2004-02-02 2005-08-11 Teijin Techno Products Ltd Flame-retardant conjugated yarn
WO2008048256A2 (en) * 2005-10-21 2008-04-24 Dow Global Technologies Inc. Flame and heat resistant stretch fabrics with improved chemical resistance and durability

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6410140B1 (en) * 1999-09-28 2002-06-25 Basf Corporation Fire resistant corespun yarn and fabric comprising same
JP2005213708A (en) * 2004-02-02 2005-08-11 Teijin Techno Products Ltd Flame-retardant conjugated yarn
WO2008048256A2 (en) * 2005-10-21 2008-04-24 Dow Global Technologies Inc. Flame and heat resistant stretch fabrics with improved chemical resistance and durability

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