Coated fabric and method for producing same

Patent metadata

Field	Value
Publication number	US-9878684-B2
Application number	US-201314419627-A
Country	US
Kind code	B2
Filing date	Aug 26, 2013
Priority date	Aug 28, 2012
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

The present invention addresses the problem of providing a cloth which, when used as an air bag main body cloth, does not undergo the damage caused by a high-temperature gas generated from an inflater, and therefore has high heat resistance and is suitable for an air bag. The means for solving the problem is a coated cloth for an air bag, which is produced by applying an elastomer resin layer on at least one surface of a three-dimensional woven fabric in an amount of 50 to 500 g/m 2 per one surface, said coated cloth being characterized by having void spaces formed therein, wherein the void content in the coated cloth is 15 to 60%. Preferably, the coated cloth is used in applications in which the coated cloth is attached onto the periphery of an inflater connection opening in an air bag.

First claim

The invention claimed is:

1. A coated fabric comprising a three dimensional construction woven fabric which is selected from a three-layer woven fabric and a four-layer woven fabric, wherein:
at least one surface of the three dimensional construction woven fabric is coated with an elastomer resin layer,
the elastomer resin layer is coated in an amount of 50 to 500 g/m 2 per one surface; and
the coated fabric has voids therein and has a void content of 15 to 60%, calculated as:
Void content (%)=(Apparent mass−Actual mass)/(Actual mass)×100; and

Apparent mass(g)=(Thickness of uncoated base fabric(cm))×(Area of test piece(cm 2 ))×(Density of original yarn(g/cm 3 ))+((Thickness of coated base fabric(cm))−(Thickness of uncoated base fabric(cm)))×(Area of test piece(cm 2 ))×(Density of resin(g/cm 3 )).

2. An airbag that includes a coated fabric according claim 1 .

3. An airbag that includes a coated fabric according to claim 1 as an attachment to a periphery of an inflator connection opening in the air-bag.

4. The coated fabric for an air-bag according to claim 1 , wherein:
fibers constituting the three dimensional construction woven fabric are synthetic fibers; and
the fibers have a total fineness of 100 to 700 dtex and a single yarn fineness of 1 to 7 dtex.

5. The coated fabric according to claim 1 , wherein:
both surfaces of the three dimensional construction woven fabric are each coated with the elastomer resin layer; and
the amount of the elastomer resin layer attached to one of the both surfaces is equal to or less than 200 g/m 2 .

6. The coated fabric according to claim 1 , wherein the three dimensional construction woven fabric has a thickness of 0.5 to 2.5 mm, measured in accordance with JIS L 1096:1999 8.5.

7. A method for producing the coated fabric recited in claim 1 , comprising:
producing a three dimensional construction woven fabric from synthetic fibers with a jacquard loom or a dobby loom; and
coating at least one surface of the three dimensional construction woven fabric with an elastomer resin.

8. An air-bag comprising the coated fabric recited in claim 1 , wherein the coated fabric is sewed to a part for attachment to a periphery of an opening for connection with an inflator of an air-bag device.

Assignees

• Toray Industries

Inventors

• Tanaka Nobuaki
• Tsuchikura Hiroshi
• Yamada Satoshi

Classifications

• D06M15/643

  containing silicon in the main chain · CPC title

• D03D11/00

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

• D06N3/0006

  using woven fabrics · CPC title

• B60R2021/23533

  characterised by the manufacturing process · CPC title

• B05D7/00

  Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials {(coating of foodstuffs A23P20/17, A23P20/15, A23P20/18)} · CPC title