CN116249805A - Flame-retardant fabric and protective garment using same - Google Patents
Flame-retardant fabric and protective garment using same Download PDFInfo
- Publication number
- CN116249805A CN116249805A CN202080105332.XA CN202080105332A CN116249805A CN 116249805 A CN116249805 A CN 116249805A CN 202080105332 A CN202080105332 A CN 202080105332A CN 116249805 A CN116249805 A CN 116249805A
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- CN
- China
- Prior art keywords
- fiber
- flame
- retardant fabric
- flame retardant
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000003063 flame retardant Substances 0.000 title claims abstract description 97
- 239000004744 fabric Substances 0.000 title claims abstract description 87
- 230000001681 protective effect Effects 0.000 title claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 118
- 239000004642 Polyimide Substances 0.000 claims abstract description 43
- 229920001721 polyimide Polymers 0.000 claims abstract description 43
- 229920002972 Acrylic fiber Polymers 0.000 claims abstract description 33
- 229920000297 Rayon Polymers 0.000 claims abstract description 24
- 239000002964 rayon Substances 0.000 claims abstract description 24
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 18
- 229920000433 Lyocell Polymers 0.000 claims abstract description 17
- 239000004627 regenerated cellulose Substances 0.000 claims abstract description 16
- 239000000178 monomer Substances 0.000 claims description 29
- 229910052736 halogen Inorganic materials 0.000 claims description 21
- 150000002367 halogens Chemical class 0.000 claims description 20
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 12
- 229920001577 copolymer Polymers 0.000 claims description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims description 12
- 239000011574 phosphorus Substances 0.000 claims description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 11
- 229920002554 vinyl polymer Polymers 0.000 claims description 10
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 9
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 claims description 8
- 150000001463 antimony compounds Chemical class 0.000 claims description 5
- 238000007706 flame test Methods 0.000 abstract description 5
- 238000009987 spinning Methods 0.000 description 14
- -1 petrochemical Substances 0.000 description 9
- 238000005406 washing Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 239000004760 aramid Substances 0.000 description 4
- 229920003235 aromatic polyamide Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- 238000005555 metalworking Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 2
- BCJIMAHNJOIWKQ-UHFFFAOYSA-N 4-[(1,3-dioxo-2-benzofuran-4-yl)oxy]-2-benzofuran-1,3-dione Chemical compound O=C1OC(=O)C2=C1C=CC=C2OC1=CC=CC2=C1C(=O)OC2=O BCJIMAHNJOIWKQ-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Chemical compound O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 description 2
- 125000006158 tetracarboxylic acid group Chemical group 0.000 description 2
- 150000000000 tetracarboxylic acids Chemical class 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- SXZSFWHOSHAKMN-UHFFFAOYSA-N 2,3,4,4',5-Pentachlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC(Cl)=C(Cl)C(Cl)=C1Cl SXZSFWHOSHAKMN-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 1
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- ZBMISJGHVWNWTE-UHFFFAOYSA-N 3-(4-aminophenoxy)aniline Chemical compound C1=CC(N)=CC=C1OC1=CC=CC(N)=C1 ZBMISJGHVWNWTE-UHFFFAOYSA-N 0.000 description 1
- QYIMZXITLDTULQ-UHFFFAOYSA-N 4-(4-amino-2-methylphenyl)-3-methylaniline Chemical compound CC1=CC(N)=CC=C1C1=CC=C(N)C=C1C QYIMZXITLDTULQ-UHFFFAOYSA-N 0.000 description 1
- JPZRPCNEISCANI-UHFFFAOYSA-N 4-(4-aminophenyl)-3-(trifluoromethyl)aniline Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1C(F)(F)F JPZRPCNEISCANI-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920002821 Modacrylic Polymers 0.000 description 1
- 229920000388 Polyphosphate Chemical class 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 238000010042 air jet spinning Methods 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- WKDNYTOXBCRNPV-UHFFFAOYSA-N bpda Chemical compound C1=C2C(=O)OC(=O)C2=CC(C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 WKDNYTOXBCRNPV-UHFFFAOYSA-N 0.000 description 1
- INLLPKCGLOXCIV-UHFFFAOYSA-N bromoethene Chemical compound BrC=C INLLPKCGLOXCIV-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000001205 polyphosphate Chemical class 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 238000007378 ring spinning Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/08—Heat resistant; Fire retardant
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/0002—Details of protective garments not provided for in groups A41D13/0007 - A41D13/1281
-
- 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
-
- 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
- D03D15/208—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 cellulose-based
- D03D15/225—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 cellulose-based artificial, e.g. viscose
-
- 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
- D03D15/50—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
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/20—Woven
-
- 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
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
-
- 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
- D10B2331/14—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
-
- 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
- D10B2401/04—Heat-responsive characteristics
-
- 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
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
- Y10T442/3293—Warp and weft are identical and contain at least two chemically different strand materials
Abstract
The present invention relates to a flame-retardant fabric comprising an acrylic fiber, at least one regenerated cellulose fiber selected from flame-retardant rayon fibers and lyocell fibers, and a polyimide fiber, wherein the flame-retardant fabric comprises 26 to 79 wt.% of the acrylic fiber, 18 to 48 wt.% of the regenerated cellulose fiber, and 3 to 26 wt.% of the polyimide fiber, the polyimide fiber has a fiber length of 45 to 127mm, and a char length measured by a flammability test according to GB/T5455-1997 is 50mm or less. The present invention also relates to protective clothing using the flame retardant fabric. Thus, a flame-retardant fabric having a short char length in a flame test and excellent flame retardance, and protective clothing using the same can be provided.
Description
Technical Field
The present invention relates to a flame retardant fabric and protective clothing using the same.
Background
In petroleum, petrochemical, coal mine, electric power, welding and other working sites, accidents such as fire and other accidents occur in metal working sites, and in dust explosion and other accidents occur in metal working sites, so that the protective clothing worn on such working sites is required to have flame retardance.
As protective clothing fabrics having flame retardancy, various configurations have been proposed. For example, patent document 1 describes a fabric mainly composed of aromatic polyamide fibers such as para-type aromatic polyamide fibers and meta-type aromatic polyamide fibers. However, aromatic polyamide fibers are expensive and have become an obstacle to the popularization of security products. On the other hand, patent document 2 describes a flame retardant fabric containing modacrylic fiber, cellulose fiber, and polyimide fiber.
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2014-525520
Patent document 2: chinese patent application publication No. 105926097 specification
Disclosure of Invention
Problems to be solved by the invention
However, in the case of the flame-retardant fabric described in patent document 2, the char length may be increased in the combustion test, and further improvement of the flame retardancy is required.
The invention provides a flame-retardant fabric with short carbonization length and good flame retardance in a combustion test and protective clothing using the same.
Means for solving the problems
The present invention relates to a flame retardant fabric, characterized in that: disclosed is a flame-retardant fabric comprising an acrylic fiber, at least one regenerated cellulose fiber selected from flame-retardant rayon fibers and lyocell fibers, and a polyimide fiber, wherein the flame-retardant fabric comprises 26-79 wt% of the acrylic fiber, 18-48 wt% of the regenerated cellulose fiber, and 3-26 wt% of the polyimide fiber, and the polyimide fiber has a fiber length of 45-127 mm and a char length of 50mm or less as measured by a flammability test according to GB/T5455-1997.
Furthermore, the invention relates to a protective garment, characterized in that: the flame retardant fabric is used.
Effects of the invention
The invention provides a flame-retardant fabric with a short charring length and good flame retardance in a burning test and protective clothing using the same.
Detailed Description
The inventors of the present invention have conducted intensive studies to improve the flame retardancy of a flame-retardant fabric containing acrylic fibers, cellulose fibers and polyimide fibers. As a result, it has been surprisingly found that by adding acrylic fiber, flame-retardant rayon fiber and/or lyocell fiber, and polyimide fiber to a fabric in predetermined amounts, and by setting the fiber length of the polyimide fiber to 45 to 127mm, it is possible to: when the fabric is used for a flame test, the char length is reduced, specifically to 50mm or less. In particular, it was found that: by setting the fiber length of the polyimide fiber to 45mm or more, the char length of the fabric in the burning test is reduced, specifically 50mm or less, even when the content of polyimide is small. In the present invention, "char length" can be determined by the flammability test based on GB/T5455-1997, respectively. Furthermore, in the present invention, GB means the national standard of China.
The inventors found that: specifically, in a flame-retardant fabric formed of spun yarns containing acrylic fibers, flame-retardant rayon fibers and/or lyocell fibers, and polyimide fibers, when the blending amounts of the fibers are the same, the fiber length of the polyimide fibers is set to 45 to 127mm, whereby the char length in a flame test is remarkably shortened and the flame retardance is remarkably improved. Conventionally, in order to improve flame retardancy, it has been an epoch-making finding that fiber length of a fiber affects flame retardancy, mainly by adjusting the type of the fiber to which flame retardancy is imparted to the fabric, the amount of the fiber to be blended, and the like. In a fabric, particularly a fabric using spun yarn, it is an unexpected innovation for those skilled in the art to improve flame retardancy by adjusting the fiber length of polyimide fiber to a predetermined range and to significantly shorten the char length of the fabric in a flame test.
The flame-retardant fabric contains 26 to 79% by weight of acrylic fiber, 18 to 48% by weight of regenerated cellulose fiber selected from flame-retardant rayon fiber and lyocell fiber, and 3 to 26% by weight of polyimide fiber. From the viewpoint of cost and flame retardancy, the flame-retardant fabric preferably contains 44.5 to 79% by weight of acrylic fiber, 18 to 48% by weight of regenerated cellulose fiber selected from flame-retardant rayon fiber and lyocell fiber, and 3 to 7.5% by weight of polyimide fiber.
Specifically, the flame-retardant fabric may be formed of a spun yarn containing 26 to 79% by weight of an acrylic fiber, 18 to 48% by weight of a regenerated cellulose fiber selected from flame-retardant rayon fibers and lyocell fibers, and 3 to 26% by weight of a polyimide fiber. From the viewpoint of cost and flame retardancy, the flame-retardant fabric is preferably formed of a spun yarn containing 44.5 to 79 wt% of acrylic fiber, 18 to 48 wt% of regenerated cellulose fiber selected from flame-retardant rayon fiber and lyocell fiber, and 3 to 7.5 wt% of polyimide fiber. The spun yarn can be produced by a known spinning method. The spinning method is not particularly limited, and examples thereof include ring spinning, air spinning, and air jet spinning.
The length of the polyimide fiber is 45-127 mm. If the fiber length of the polyimide fiber is 45mm or more, flame retardancy can be improved, and the char length of the fabric can be significantly shortened in a flame test. When the length of the polyimide fiber is 127mm or less, a spun yarn can be produced by a general-purpose spinning device, and productivity is good. The length of the polyimide fiber is preferably 45 to 76mm, more preferably 45 to 64mm, and even more preferably 45 to 55mm, from the viewpoints of flame retardancy and productivity in the spinning step.
The polyimide fiber is not particularly limited, and for example, a polyimide fiber formed of a polyimide obtained by polymerizing a tetracarboxylic acid component and a diamine component can be suitably used.
Examples of the tetracarboxylic acid component include tetracarboxylic acid dianhydride. The tetracarboxylic dianhydride is not particularly limited, and for example, 3', 4' -biphenyl tetracarboxylic dianhydride (BPDA), pyromellitic anhydride (PMDA), oxydiphthalic anhydride (ODPA), and the like can be suitably used. The tetracarboxylic dianhydride may be used alone or in combination of two or more.
Examples of the diamine component include diisocyanate compounds and diamine compounds. The diisocyanate compound is not particularly limited, and for example, 2, 4-toluene diisocyanate, 2, 5-toluene diisocyanate, 2, 6-toluene diisocyanate, and the like can be suitably used. The diamine compound is preferably an aromatic diamine compound. The aromatic diamine compound is not particularly limited, and for example, p-phenylenediamine (PPD), 2' -dimethyl-4, 4' -diaminobiphenyl (m-tolidine), 4' -diaminodiphenyl ether (ODA), 3,4' -diaminodiphenyl ether, 2' -bis (trifluoromethyl) benzidine, and the like can be suitably used. The diamine component may be used alone or in combination of two or more.
The flame-retardant fabric is not particularly limited, but for example, from the viewpoint of flame retardance and cost, it preferably contains 3 to 7.5 wt% of polyimide fibers, more preferably 4 to 7 wt%, still more preferably 4.5 to 6.5 wt%, and most preferably 5 to 6.5 wt%.
As the polyimide fiber, for example, a commercially available product such as ASPI (registered trademark) polyimide fiber manufactured by Jiangsu oshen new Materials Co., ltd (China Jiangsu Aoshen Hi-Tech Materials Co., LTD) can be used.
The acrylic fiber is preferably formed of an acrylonitrile copolymer obtained by copolymerizing 35 to 85% by weight of acrylonitrile with 15 to 65% by weight of other components. As the other component, for example, 1 or more selected from halogen-containing vinyl monomers and halogen-containing vinylidene monomers are preferably used from the viewpoint of flame retardancy. The acrylonitrile content in the acrylonitrile copolymer is more preferably 35 to 65% by weight. The content of the halogen-containing vinyl monomer and/or halogen-containing vinylidene monomer in the above-mentioned acrylonitrile-based copolymer is more preferably 35 to 65% by weight. The above-mentioned acrylonitrile-based copolymer may further contain a sulfonic acid group-containing monomer. The content of the sulfonic acid group-containing monomer in the above-mentioned acrylonitrile-based copolymer is preferably 0 to 3% by weight.
The above-mentioned acrylonitrile-based copolymer preferably contains: 35 to 85% by weight of acrylonitrile, 15 to 65% by weight of at least one halogen-containing monomer selected from the group consisting of halogen-containing vinyl monomers and halogen-containing vinylidene monomers, and 0 to 3% by weight of a sulfonic acid group-containing monomer, more preferably comprising: 40 to 75% by weight of acrylonitrile, 24.5 to 60% by weight of at least one halogen-containing monomer selected from halogen-containing vinyl monomers and halogen-containing vinylidene monomers, and 0.5 to 3% by weight of a sulfonic acid group-containing monomer.
If the acrylonitrile content in the acrylonitrile-based copolymer is 35 to 85% by weight, the acrylic fiber has good fiber physical properties, and the flame-retardant fabric containing the same has good physical properties.
The acrylic fiber is excellent in flame retardancy as long as the content of the halogen-containing vinyl monomer and/or halogen-containing vinylidene monomer in the acrylonitrile copolymer is 15 to 65% by weight, and further the flame retardant fabric containing the same is also excellent in flame retardancy.
The halogen-containing vinyl monomer is not particularly limited, and examples thereof include vinyl chloride and vinyl bromide. The halogen-containing vinylidene monomer is not particularly limited, and examples thereof include vinylidene chloride and vinylidene bromide. These halogen-containing vinyl and halogen-containing vinylidene monomers may be used singly or in combination of two or more.
The sulfonic acid group-containing monomer is not particularly limited, and examples thereof include methacrylic acid, allylsulfonic acid, styrenesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, and salts thereof. In the above, examples of the salt include sodium salt, potassium salt, ammonium salt, and the like, but the salt is not limited thereto. The monomer containing these sulfonic acid groups may be used alone or in combination of two or more. The sulfonic acid group-containing monomer may be used as needed, but if the content of the sulfonic acid group-containing monomer in the above-mentioned acrylonitrile copolymer is 3% by weight or less, the production stability in the spinning step is excellent.
Preferably, the acrylic fiber contains an antimony compound. The content of the antimony compound in the acrylic fiber is 3.9 to 20% by weight, preferably 4.2 to 18% by weight, more preferably 4.5 to 16% by weight, and even more preferably 4.7 to 14% by weight, based on the total weight of the fiber. If the content of the antimony compound is within the above range, the charring length in the combustion test is more easily shortened and the afterglow time is also shortened.
The antimony compound is not particularly limited, but is preferably 1 or more selected from the group consisting of antimony trioxide, antimony tetraoxide and antimony pentoxide in view of production stability in the spinning step.
As the acrylic fiber, for example, a short fiber having a fiber length of 30 to 127mm, preferably 45 to 127mm, more preferably 45 to 76mm, and even more preferably 45 to 64mm can be suitably used from the viewpoints of strength and productivity in the spinning step. The acrylic fiber preferably has a fiber length substantially equal to that of the polyimide fiber. This can improve the spinning property, the yarn quality such as strength, and further improve the physical properties of the flame-retardant fabric.
From the viewpoint of flame retardancy and heat resistance, the flame-retardant fabric preferably contains 44.5 to 65 wt% of the acrylic fiber, more preferably 50 to 65 wt%, and even more preferably 50 to 60 wt%.
The flame-retardant rayon fiber is preferably a rayon fiber containing a phosphorus flame retardant. The phosphorus flame retardant is not particularly limited, and examples thereof include phosphate compounds, halogen phosphate compounds, condensed phosphate compounds, polyphosphate compounds, and the like. The flame-retardant rayon fiber containing the phosphorus flame retardant is not particularly limited, but for example, the phosphorus flame retardant is preferably contained in an amount of 0.5% by weight or more, more preferably 0.8% by weight or more, based on the total weight of the fiber. As the flame-retardant rayon fiber containing the above-mentioned phosphorus flame retardant, for example, commercially available flame-retardant rayon fibers such as "Lenzing FR (registered trademark)", manufactured by laning (Lenzing) and "JWELLFR (trademark)", manufactured by giling chemical fiber company, may be used.
The flame-retardant fabric contains 0.3 wt% or more of phosphorus, preferably 0.4 wt% or more, and more preferably 0.5 wt% or more, based on the total weight of the fabric. If the phosphorus content in the flame-retardant fabric is 0.3 wt% or more, the char length is more likely to be shortened and the flame retardancy is more improved. The upper limit of the phosphorus content in the flame-retardant fabric is not particularly limited, but from the viewpoint of further shortening the char length of the flame-retardant fabric, phosphorus is preferably contained in an amount of 1.1 wt% or less relative to the total weight of the fabric. In the flame-retardant fabric, the phosphorus content can be measured by a fluorescent X-ray analysis method.
In the case where the flame-retardant fabric contains an acrylic fiber formed of an acrylonitrile copolymer obtained by copolymerizing acrylonitrile and a halogenated vinyl monomer, it is preferable that the regenerated cellulose fiber contains a flame-retardant rayon fiber, from the viewpoint of further improving flame retardancy.
The flame-retardant fabric can provide excellent touch and hygroscopicity while improving flame retardancy by containing the regenerated cellulose fibers in addition to the polyimide fibers and the acrylic fibers.
From the viewpoint of flame retardancy and hand feel, the flame-retardant fabric preferably contains 18 to 45% by weight of the regenerated cellulose fiber, and more preferably contains 20 to 40% by weight.
As the flame-retardant rayon fiber and the lyocell fiber, for example, a staple fiber having a fiber length of 30 to 127mm, preferably 45 to 127mm, more preferably 45 to 76mm, and even more preferably 45 to 64mm can be suitably used from the viewpoints of strength and productivity in the spinning step. The flame-retardant rayon fiber and the lyocell fiber preferably have a fiber length substantially equal to that of polyimide fiber. This can improve spinning properties, improve the quality of filaments such as strength, and further improve the physical properties of the flame-retardant fabric. The acrylic fiber, the flame-retardant rayon fiber, and the lyocell fiber preferably have a fiber length substantially equal to that of a polyimide fiber.
The flame-retardant fabric may contain other fibers within a range that does not hinder the objects and effects of the present invention. Examples of the other fibers include conductive fibers, nylon fibers, and polyester fibers. In the flame-retardant fabric, the other fibers may be contained in an amount of 5% by weight or less, 3% by weight or less, or 1% by weight or less.
The other fibers may be short fibers having a fiber length of 30 to 127mm, for example, from the viewpoint of strength and productivity in the spinning step, and are preferably 45 to 127mm, more preferably 45 to 76mm, and still more preferably 45 to 64mm, from the viewpoint of productivity in the spinning step. The other fibers preferably have a fiber length substantially equal to that of the polyimide fibers. This can improve spinning properties, improve the quality of filaments such as strength, and further improve the physical properties of the flame-retardant fabric. More preferably, all of the fibers forming the spun yarn have a fiber length substantially equivalent to that of polyimide fibers.
In the flame-retardant fabric, from the viewpoint of strength, the single fiber fineness of the acrylic fiber, the flame-retardant rayon fiber, the lyocell fiber, and the other fibers is preferably 1 to 20dtex, and more preferably 1.5 to 15dtex.
The flame-retardant fabric is not particularly limited, but from the viewpoint of softness and touch, the weight per unit area is preferably 100 to 500g/m 2 More preferably 130 to 480g/m 2 Further preferably 150 to 460g/m 2 。
The form of the flame-retardant fabric is not particularly limited, and examples thereof include a fabric and a woven fabric. From the viewpoints of durability and flame retardance, a fabric is preferable. The weave of the fabric is not particularly limited, and may be a triple weave such as plain weave, twill weave, and satin weave, or a fancy weave using a special loom such as a dobby loom or a jacquard loom.
The flame-retardant fabric has excellent flame retardancy, and has a char length of 50mm or less as measured by a flammability test according to GB/T5455-1997. As long as the carbonization length is below 50mm, the A-level standard of the carbonization length of the flame-retardant protective clothing specified in GB8965.1-2009 can be met. Preferably, the flame-retardant fabric has a char length of 50mm or less as measured by a flammability test according to GB/T5455-1997 after washing 50 times according to GB/T17596-1998.
The flame-retardant fabric is excellent in flame retardancy, and the afterglow time, as measured by the flammability test according to GB/T5455-1997, is preferably 2.0 seconds or less. More preferably, the afterglow time as measured by the flammability test based on GB/T5455-1997 after 50 times of washing according to GB/T17596-1998 is 2.0 seconds or less. The afterglow time of 2.0 seconds or less can meet the A-class or B-class standard of the afterglow time of 'flame retardant protective clothing' specified in GB 8965.1-2009. The flame-retardant fabric has a char length of 50mm or less, and an afterglow time of 2.0 seconds or less, and particularly preferably has a char length of 50mm or less, and an afterglow time of 2.0 seconds or less after washing 50 times according to GB/T17596-1998.
The flame retardant fabric is excellent in flame retardancy, and the after flame time measured by the flammability test according to GB/T5455-1997 is preferably 2.0 seconds or less. More preferably, after 50 washes according to GB/T17596-1998, the after flame time as determined by the flammability test based on GB/T5455-1997 is 2.0 seconds or less. The class a or class B standard for the after flame time of "flame retardant protective clothing" specified in GB8965.1-2009 can be satisfied as long as the after flame time is 2.0 seconds or less.
The flame-retardant fabric of the present invention can be suitably used as a protective fabric requiring flame retardancy, and can provide protective clothing excellent in flame retardancy using the flame-retardant fabric at low cost. The protective garment of the present invention can be produced by a known sewing method using the flame retardant fabric. The flame-retardant fabric has excellent flame retardancy, so that the protective garment of the present invention also has excellent flame retardancy. Further, the flame-retardant fabric has excellent flame retardancy even after repeated washing, so that the protective clothing can maintain its flame retardancy even after repeated washing. The protective garment of the present invention can be used as all work protective garments requiring flame retardancy. For example, the protective clothing is not particularly limited, and can be used as protective clothing worn on a work site where a fire is likely to occur, such as petroleum, petrochemical, coal mine, electric power, welding, and the like, and as protective clothing worn on a work site where dust explosion is assumed to occur, such as metal working.
Examples
The present invention will be described in detail with reference to examples. However, the present invention is not limited to these examples.
In examples and comparative examples, the following fibers were used.
< fiber >
As the acrylic fiber I, an acrylic fiber comprising 9.1% by weight of antimony trioxide relative to the total weight of the fiber, which was formed of an acrylic copolymer comprising 49.5% by weight of acrylonitrile, 49.5% by weight of vinyl chloride and 1.0% by weight of sodium styrene sulfonate, was used.
Acrylic fiber I: fineness of 1.7dtex and fiber length of 51mm
Flame retardant rayon fiber: "Lenzing FR", manufactured by Lanjing Co., ltd., containing a phosphorus-based flame retardant, having a fineness of 2.2dtex and a fiber length of 51mm
Lyocell fiber: "Tencel (registered trademark)", manufactured by Lanjing corporation, fineness of 1.3dtex, fiber length of 51mm
Polyimide fiber I: china Jiangsu Aoshen Hi-Tech Materials Co., LTD manufacturing "ASPI (registered trademark)", fineness 1.67dtex, fiber length 51mm
Polyimide fiber II: china Jiangsu Aoshen Hi-Tech Materials Co., LTD manufacturing "ASPI (registered trademark)", fineness 1.67dtex, fiber length 38mm
Examples 1 to 3 and comparative examples 1 to 3
The acrylic fiber, the flame-retardant rayon fiber, the lyocell fiber and the polyimide fiber were mixed in the amounts shown in table 1 below to prepare spun yarns having cotton counts shown in table 1 below. These spun yarns were used as warp yarns and weft yarns, and a 2/1 twill weave fabric was produced by a usual production method. The number of picks is shown in table 1 below.
The flame retardancy of the fabrics obtained in examples 1 to 3 and comparative examples 1 to 3 was measured and evaluated as follows, and the results are shown in table 1 below.
(flame retardance)
The flammability test was conducted based on GB/T5455-1997, and the char length (the length of the char portion), the after-flame time and the afterglow time of the fabric were measured. The fabrics of examples 1 to 3 and comparative examples 1 to 3 were subjected to flammability tests by washing 50 times according to GB/T17596-1998.
TABLE 1
From the results of Table 1, it was found that the fabrics of examples 1 to 3 had char lengths of 50mm or less as measured by the flammability test according to GB/T5455-1997, and were excellent in flame retardancy. On the other hand, the fabrics of comparative examples 1 to 3 using polyimide fibers having a fiber length of less than 45mm had a char length exceeding 50mm as measured by the flammability test according to GB/T5455-1997, and had poor flame retardancy.
Claims (10)
1. A flame-retardant fabric comprising acrylic fiber, regenerated cellulose fiber of at least one kind selected from flame-retardant rayon fiber and lyocell fiber, and polyimide fiber,
the flame-retardant fabric comprises 26 to 79 wt% of acrylic fiber, 18 to 48 wt% of regenerated cellulose fiber, and 3 to 26 wt% of polyimide fiber;
the length of the polyimide fiber is 45-127 mm;
the char length measured by the flammability test according to GB/T5455-1997 is 50mm or less.
2. The flame retardant fabric according to claim 1, wherein the acrylic fiber has a fiber length of 45 to 127mm.
3. The flame retardant fabric according to claim 1 or 2, wherein the fiber length of the regenerated cellulose fiber of at least one selected from the group consisting of flame retardant rayon fibers and lyocell fibers is 45 to 127mm.
4. The flame retardant fabric according to any one of claims 1 to 3, wherein the acrylic fiber is formed of an acrylonitrile copolymer containing 35 to 85% by weight of acrylonitrile, 15 to 65% by weight of at least 1 halogen-containing monomer selected from halogen-containing vinyl monomers and halogen-containing vinylidene monomers, and 3% by weight or less of a sulfonic acid group-containing vinyl monomer.
5. The flame retardant fabric according to any one of claims 1 to 4, wherein the acrylic fiber contains 3.9 to 20% by weight of an antimony compound.
6. The flame retardant fabric according to any one of claims 1 to 5, wherein the flame retardant rayon fiber contains a phosphorus flame retardant.
7. The flame retardant fabric according to any one of claims 1 to 6, wherein the flame retardant fabric comprises 44.5 to 79 wt.% acrylic fiber, 18 to 48 wt.% regenerated cellulose fiber, and 3 to 7.5 wt.% polyimide fiber.
8. The flame retardant fabric according to any one of claims 1 to 7, wherein the acrylonitrile-based copolymer contains a halogen-containing vinyl monomer, and the regenerated cellulose fiber contains a flame retardant rayon fiber.
9. The flame retardant fabric according to any one of claims 1 to 8, wherein the flame retardant fabric is a fabric.
10. A protective garment, characterized in that: the flame retardant fabric according to any one of claims 1 to 9.
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| PCT/JP2020/036656 WO2022064703A1 (en) | 2020-09-28 | 2020-09-28 | Flame-retardant fabric and protective clothing using same |
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| WO2016194766A1 (en) * | 2015-06-01 | 2016-12-08 | 株式会社カネカ | Flame-retardant fabric and protective clothing in which same is used |
| JP2017201063A (en) * | 2016-05-02 | 2017-11-09 | 帝人株式会社 | Flame-retardant fabric and fiber product |
| CN105926097B (en) * | 2016-06-22 | 2020-11-10 | 中劳安防护用品科技（北京）股份有限公司 | Flame retardant yarn/fabric/garment |
| CN107700038A (en) * | 2016-09-26 | 2018-02-16 | 上海谐好安全科技有限公司 | Modacrylic Lyocell fibers nylon blend flame-retardant textile |
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