Wear-resistant multilayer fabrics

Patent metadata

Field	Value
Publication number	US-2016160407-A1
Application number	US-201414906739-A
Country	US
Kind code	A1
Filing date	Jul 10, 2014
Priority date	Jul 25, 2013
Publication date	Jun 9, 2016
Grant date	—

Abstract

A wear-resistant cloth has high wear resistance and is capable of exerting a long-term sliding property even under high-load environment as compared with conventional cloths. A wear-resistant multilayer fabric includes a sliding fabric and a base fabric. The sliding fabric includes polytetrafluoroethylene fibers A, the base fabric includes fibers B having creep ratio in a standard state and under 20% load of breaking strength, the creep ratio being lower than creep ratio of the polytetrafluoroethylene fibers, and the sliding fabric and the base fabric have mutual warps and/or wefts that are mutually entangled for bonding.

First claim

1 - 12 . (canceled)

13 . A wear-resistant multilayer fabric comprising a sliding fabric and a base fabric, wherein
the sliding fabric comprises polytetrafluoroethylene fibers A, the base fabric comprises fibers B having a creep ratio in a standard state and under 20% load of breaking strength lower than a creep ratio of the polytetrafluoroethylene fibers, and the sliding fabric and the base fabric have mutual warps and/or wefts that are mutually entangled for bonding.

14 . The wear-resistant multilayer fabric according to claim 13 , that is a warp/weft multilayer fabric including the sliding fabric and the base fabric.

15 . The wear-resistant multilayer fabric according to claim 13 , wherein the fibers B have a tensile strength higher than a tensile strength of the polytetrafluoroethylene fibers A.

16 . The wear-resistant multilayer fabric according to claim 13 , wherein an amount of the polytetrafluoroethylene fibers A observed on a surface of the sliding fabric is 80% or more.

17 . The wear-resistant multilayer fabric according to claim 13 , wherein the fibers B include one or more fibers selected from the group consisting of poly-paraphenylene terephthalamide, polymetaphenylene isophthalamide, glass, carbon, polyparaphenylene benzobisoxazole (PBO) and polyphenylene sulfide (PPS).

18 . The wear-resistant multilayer fabric according to claim 17 , wherein the fibers B include polyphenylene sulfide fibers.

19 . The wear-resistant multilayer fabric according to claim 13 , wherein the polytetrafluoroethylene fibers A have creep ratio in a standard state and under 20% load of breaking strength 6% or less.

20 . The wear-resistant multilayer fabric according to claim 13 , wherein the base fabric is a plain weave fabric.

21 . The wear-resistant multilayer fabric according to claim 13 , wherein the sliding fabric is a plain weave fabric.

22 . The wear-resistant multilayer fabric according to claim 13 , wherein frequency of entangled bonding of the sliding fabric and the base fabric is 0.1 or more and 0.6 or less.

23 . The wear-resistant multilayer fabric according to claim 13 , wherein the base fabric is impregnated with resin.

24 . The wear-resistant multilayer fabric according to claim 13 that can withstand a load of 10 MPa or more and 400 MPa or less.

25 . The wear-resistant multilayer fabric according to claim 14 , wherein the polytetrafluoroethylene fibers A have a creep ratio in a standard state and under 20% load of breaking strength that is 6% or less.

26 . The wear-resistant multilayer fabric according to claim 14 , wherein the base fabric is a plain weave fabric.

27 . The wear-resistant multilayer fabric according to claim 14 , wherein frequency of entangled bonding of the sliding fabric and the base fabric is 0.1 or more and 0.6 or less.

28 . The wear-resistant multilayer fabric according to claim 14 , wherein the fibers B include polyphenylene sulfide fibers.

29 . The wear-resistant multilayer fabric according to claim 28 , wherein the polytetrafluoroethylene fibers A have a creep ratio in a standard state and under 20% load of breaking strength that is 6% or less.

30 . The wear-resistant multilayer fabric according to claim 28 , wherein frequency of entangled bonding of the sliding fabric and the base fabric is 0.1 or more and 0.6 or less.

Assignees

• Toray Industries

Inventors

• Ninomiya Yuki
• Tsuchikura Hiroshi
• Sugano Koji

Classifications

• D03D11/00

  Double or multi-ply fabrics not otherwise provided for · CPC title

• D03D1/0041 Primary

  Cut or abrasion resistant · CPC title

• D03D15/10 Primary

  Textiles & Paper · mapped topic

• D03D15/58 Primary

  characterised by the coefficients of friction · CPC title