Fabric for electric-arc protective clothing, and electric-arc protective clothing

Patent metadata

Field	Value
Publication number	US-11198957-B2
Application number	US-201816117906-A
Country	US
Kind code	B2
Filing date	Aug 30, 2018
Priority date	Mar 4, 2016
Publication date	Dec 14, 2021
Grant date	Dec 14, 2021

Abstract

A fabric for arc-protective garments includes first yarns and second yarns different from the first yarns. The first yarns include first modacrylic fibers, and the first modacrylic fibers contain an infrared absorber in an amount of 2.5 wt % or more with respect to a total weight of the first modacrylic fibers. The weight of the infrared absorber per unit area in the fabric for arc-protective garments is 0.05 oz/yd 2 or more. An arc-protective garment includes the fabric for arc-protective garments.

First claim

What is claimed is:

1. A fabric for woven or knitted arc-protective garments, comprising first yarns and second yarns, wherein
the first yarns comprise one or more fibers,
the second yarns comprise one or more fibers,
the first yarns are different from the second yarns,
the first yarns comprise first modacrylic fibers,
the first modacrylic fibers comprise a modacrylic polymer containing 40% to 70% by weight of acrylonitrile, 30% to 57% by weight of a halogen-containing vinyl-based monomer, and 0% to 3% by weight of a sulfonic acid group-containing monomer,
the first modacrylic fibers comprise an infrared absorber in an amount of 2.5% by weight or more with respect to a total weight of the first modacrylic fibers,
the infrared absorber is one or more selected from the group consisting of tin oxide-based compounds, titanium oxide-based compounds, and zinc oxide-based compounds,
the second yarns do not comprise the first modacrylic fibers, or the second yarns contain the first modacrylic fibers in a lower amount than the first yarns,
the fabric for arc-protective garments comprises the infrared absorber in a weight per unit area of 0.05 oz/yd 2 or more,
the fabric for arc-protective garments are woven or knitted,
wherein the tin oxide-based compounds, the titanium oxide-based compounds, and the zinc oxide-based compounds are at least one selected from the group consisting of antimony-doped tin oxide, indium tin oxide, niobium-doped tin oxide, phosphorus-doped tin oxide, fluorine-doped tin oxide, antimony-doped tin oxide coating on titanium oxide, iron-doped titanium oxide, carbon-doped titanium oxide, fluorine-doped titanium oxide, nitrogen-doped titanium oxide, aluminum-doped zinc oxide, and antimony-doped zinc oxide.

2. The fabric for arc-protective garments according to claim 1 , wherein an exposure amount of the first yarns in a first surface of the fabric for arc-protective garments differs from an exposure amount of the first yarns in a second surface of the fabric for arc-protective garments, wherein the second surface is located opposite to the first surface.

3. The fabric for arc-protective garments according to claim 1 , wherein the first yarns comprise the first modacrylic fibers in an amount of 30% by weight or more with respect to a total weight of the first yarns.

4. The fabric for arc-protective garments according to claim 1 , wherein the first modacrylic fibers further comprise an antimony compound.

5. The fabric for arc-protective garments according to claim 1 , wherein the second yarns comprise modacrylic fibers and/or fibers having a standard moisture regain of 8% or more.

6. The fabric for arc-protective garments according to claim 1 , wherein the second yarns comprise second modacrylic fibers containing a heat absorbing material and/or a light reflecting material.

7. The fabric for arc-protective garments according to claim 6 , wherein the heat absorbing material is an aluminium hydroxide.

8. The fabric for arc-protective garments according to claim 6 , wherein the light reflecting material is a titanium oxide.

9. The fabric for arc-protective garments according to claim 1 , wherein when the fabric for arc-protective garments has a basis weight of 6.5 oz/yd2 or less, an Arc Thermal Performance Value (ATPV) of the fabric for arc-protective garments as measured according to ASTM F1959/F1959M-12 (Standard Test Method for Determining the Arc Rating of Materials for Clothing) is 8 cal/cm 2 or more.

10. An arc-protective garment comprising the fabric for arc-protective garments according to claim 1 .

11. The fabric for arc-protective garments according to claim 1 , wherein the fabric for arc-protective garments is a woven fabric in which the first yarns and the second yarns are woven together.

12. The fabric for arc-protective garments according to claim 11 , wherein an exposure amount of the first yarns in a first surface of the fabric for arc-protective garments differs from an exposure amount of the first yarns in a second surface of the fabric for arc-protective garments, wherein the second surface is located opposite to the first surface.

13. The fabric for arc-protective garments according to claim 11 , wherein the first yarns comprise the first modacrylic fibers in an amount of 30% by weight or more with respect to a total weight of the first yarns.

14. The fabric for arc-protective garments according to claim 11 , wherein the first modacrylic fibers further comprise an antimony compound.

15. The fabric for arc-protective garments according to claim 11 , wherein the second yarns comprise modacrylic fibers and/or fibers having a standard moisture regain of 8% or more.

16. The fabric for arc-protective garments according to claim 11 , wherein the second yarns comprise second modacrylic fibers containing a heat absorbing material and/or a light reflecting material.

17. The fabric for arc-protective garments according to claim 16 , wherein the heat absorbing material is an aluminium hydroxide.

18. The fabric for arc-protective garments according to claim 16 , wherein the light reflecting material is a titanium oxide.

19. The fabric for arc-protective garments according to claim 11 , wherein when the fabric for arc-protective garments has a basis weight of 6.5 oz/yd2 or less, an Arc Thermal Performance Value (ATPV) of the fabric for arc-protective garments as measured according to ASTM F1959/F1959M-12 (Standard Test Method for Determining the Arc Rating of Materials for Clothing) is 8 cal/cm 2 or more.

Assignees

• Kaneka Corp

Inventors

• Sato Motohiro
• Matsumoto Yoshitomo
• OHZEKI Tatsuro
• Mio Wataru
• Tanaka Yasunori
• UTSUNOMIYA Yuto
• MATSUSHIMA Tomoya

Classifications

• D03D15/547

  with optical functions other than colour, e.g. comprising light-emitting fibres · CPC title

• D03D15/52

  thermal insulating, e.g. heating or cooling · CPC title

• D03D15/225 Primary

  artificial, e.g. viscose · CPC title

• D03D15/00

  Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used · CPC title

• D03D15/283

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