Fabric for airbag
First Claim
1. An uncoated gas-permeable fabric having sufficient gas-permeability, flatness, fabric strength, fabric extensibility, and tongue tear resistance for use, without modification, as the gas-releasing part of an airbag, said uncoated gas-permeable fabric comprising:
- a synthetic multifilament yarn with a tenacity of more than 60 cN/tex having a filament linear density of 4 dtex or less and a yarn count within the range from 250 to 550 dtex in an uncoated, gas-permeable crepe or modified huckaback weave, the gas-permeable, modified huckaback weave having warp-weft crossings with essentially the same number of warp-weft crossing points, said gas-permeable fabric having a thickness not exceeding 0.35 mm.
10 Assignments
0 Petitions
Accused Products
Abstract
There is described a synthetic yarn fabric for the gas-releasing part of an airbag. The synthetic yarn is a synthetic high-tenacity multifilament yarn having a filament linear density of less than 4 dtex and a yarn count within the range from 250 to 550 dtex. The fabric itself is in a crepe or modified huckaback weave. In contradistinction to the conventional polyamide fabrics, it is uncoated and is preferably woven from unsized yarns. The fabric need not be calendered. It has been found that this fabric of fine-filament, high-tenacity polyester yarn, although uncoated, does meet the airbag fabric requirements such as readily preselectable air permeability, low fabric weight and low fabric thickness and also high fabric strength.
26 Citations
10 Claims
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1. An uncoated gas-permeable fabric having sufficient gas-permeability, flatness, fabric strength, fabric extensibility, and tongue tear resistance for use, without modification, as the gas-releasing part of an airbag, said uncoated gas-permeable fabric comprising:
- a synthetic multifilament yarn with a tenacity of more than 60 cN/tex having a filament linear density of 4 dtex or less and a yarn count within the range from 250 to 550 dtex in an uncoated, gas-permeable crepe or modified huckaback weave, the gas-permeable, modified huckaback weave having warp-weft crossings with essentially the same number of warp-weft crossing points, said gas-permeable fabric having a thickness not exceeding 0.35 mm.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An airbag comprising:
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a substantially gastight fabric portion, and, integral therewith, an uncoated, gas-permeable fabric having a crepe or modified huckaback weave, the gas- permeable, modified huckaback weave having warp- weft crossings which have essentially the same number of warp-weft crossing points, said gas-permeable fabric having a thickness not exceeding 0.35 mm. - View Dependent Claims (10)
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Specification