Fabric and textile product

Patent metadata

Field	Value
Publication number	US-2021363668-A1
Application number	US-201917045073-A
Country	US
Kind code	A1
Filing date	Mar 25, 2019
Priority date	Apr 3, 2018
Publication date	Nov 25, 2021
Grant date	—

Abstract

A task is to provide a cloth which is advantageous in that the cloth has extremely excellent flame retardancy, and further has excellent washing shrinkage resistance and excellent hand as well as excellent antistatic properties, preferably in that the whole of the cloth can be uniformly dyed, and a fiber product, and the task is achieved by obtaining a cloth using a spun yarn which comprises a meta-type wholly aromatic polyamide fiber, a modacrylic fiber, and a conductive fiber.

First claim

1 . A cloth comprising a spun yarn which comprises a meta-type wholly aromatic polyamide fiber, a modacrylic fiber, and a conductive fiber.

2 . The cloth according to claim 1 , wherein the spun yarn contains the meta-type wholly aromatic polyamide fiber in an amount of 5% by weight or more, based on the weight of the spun yarn.

3 . The cloth according to claim 1 , wherein the spun yarn contains the modacrylic fiber in an amount of 30% by weight or more, based on the weight of the spun yarn.

4 . The cloth according to claim 1 , wherein the spun yarn contains the conductive fiber in an amount of 1% by weight or more, based on the weight of the spun yarn.

5 . The cloth according to claim 1 , wherein the spun yarn comprises only the meta-type wholly aromatic polyamide fiber, the modacrylic fiber, and the conductive fiber.

6 . The cloth according to claim 1 , wherein the meta-type wholly aromatic polyamide fiber has a residual solvent content of 0.1% by weight or less.

7 . The cloth according to claim 1 , wherein the meta-type wholly aromatic polyamide fiber has a crystallinity in the range of from 15 to 25%.

8 . The cloth according to claim 1 , wherein a meta-type wholly aromatic polyamide forming the meta-type wholly aromatic polyamide fiber is an aromatic polyamide having an aromatic polyamide skeleton comprising repeating structural units represented by the formula (1) below, wherein an aromatic diamine component different from the main constituent units of the repeating structure, or an aromatic dicarboxylic acid halide component is copolymerized as a third component with the aromatic polyamide skeleton so that the amount of the third component becomes 1 to 10 mol %, based on the total mole of the repeating structural units of the aromatic polyamide:
—(NH-Ar1-NH—CO-Ar1-CO)—  Formula (1)

wherein Ar1 is a divalent aromatic group having a bonding group at a position other than the meta position or the parallel axis direction.

9 . The cloth according to claim 8 , wherein, as the third component, the aromatic diamine is the following formula (2) or (3), or the aromatic dicarboxylic acid halide is the following formula (4) or (5):
H 2 N-Ar2-NH 2   Formula (2)
H 2 N-Ar2-Y-Ar2-NH 2   Formula (3)
XOC-Ar3-COX  Formula (4)
XOC-Ar3-Y-Ar3-COX  Formula (5)
wherein Ar2 represents a divalent aromatic group different from Ar1, Ar3 represents a divalent aromatic group different from Ar1, Y represents at least one atom or functional group selected from the group consisting of an oxygen atom, a sulfur atom, and an alkylene group, and X represents a halogen atom.

10 . The cloth according to claim 1 , wherein the meta-type wholly aromatic polyamide fiber further contains an organic dye, an organic pigment, or an inorganic pigment.

11 . The cloth according to claim 1 , wherein the conductive fiber is an acrylic fiber.

12 . The cloth according to claim 1 , wherein the modacrylic fiber and the conductive fiber are dyed with the same dye.

13 . The cloth according to claim 1 , which contains an ultraviolet light absorber and/or a reflective agent.

14 . The cloth according to claim 1 , which has a weight per unit in the range of from 130 to 300 g/m 2 .

15 . The cloth according to claim 1 , which has an afterflame time of 2 seconds or less, as measured by the method prescribed in ISO 15025:2000 A method.

16 . The cloth according to claim 1 , which has a carbonized area of 30 cm 2 or less, as measured by the method prescribed in JIS L1091:1999 A-1 method.

17 . The cloth according to claim 1 , which has a shrinkage rate of 5% or less, as measured after subjected to washing 5 times in accordance with the method prescribed in ISO 5077.

18 . The cloth according to claim 1 , which has a thermal shrinkage rate of 10% or less, as measured after subjected to heat treatment at 180° C. for 5 minutes in accordance with the method prescribed in ISO 17493.

19 . The cloth according to claim 1 , which has a water absorbing time of 30 seconds or less, as measured by the method prescribed in JIS L1907:2010 (dropping method).

20 . The cloth according to claim 1 , which has a bending resistance of 7.0 cm or less, as measured by the method prescribed in JIS L1096:2010 A method (cantilever).

21 . The cloth according to claim 1 , which has an antistaticity of 7.0 μC or less, as measured by the method prescribed in JIS L1094:2014 (antistatic properties).

22 . A fiber product using the cloth according to claim 1 , which is any one fiber product selected from the group consisting of protective clothing, fire-fighting fireproof clothing, fire fighting clothing, rescue clothing, workwear, a police uniform, Self-Defense Forces official clothing, and military clothing.

Assignees

• Teijin Ltd

Inventors

• Shimada Hiroki
• Iwashita Kenji
• NABETANI Kiho

Classifications

• D10B2501/04

  Outerwear; Protective garments · CPC title

• D03D15/533

  antistatic; electrically conductive · CPC title

• D03D15/513

  heat-resistant or fireproof · CPC title

• D03D15/283 Primary

  synthetic polymer-based, e.g. polyamide or polyester fibres (cellulose-based artificial fibres D03D15/225) · CPC title

• D03D1/0035 Primary

  Protective fabrics · CPC title