Manufacture of an air bag fabric
First Claim
1. A process for manufacturing an air bag fabric which is later to be cut to size, comprising weaving said fabric while varying at least one member selected from the group consisting of warp and weft sett and type of weave, independently or concurrently, to obtain a plurality of fabric zones of differing air permeability and differing cut-edge or seam strength.
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Accused Products
Abstract
An air bag fabric has zones of differing air permeability which are variable in shape and size. A dobby, tappet or Jacquard machine may be used to weave, into a fabric having tight basic weave, window-like zones with a weave which differs from the basic weave, as a result of which these zones have a high air permeability. The zones of low air permeability are arranged in such a way that later they form the edges of cuts and seams. It is further possible to manufacture fabrics which have zones of differing air permeability by alternating sections of high warp or weft sett with sections of low warp or weft sett. The fabrics of the invention are suitable in particular for the filter part of air bags.
69 Citations
13 Claims
- 1. A process for manufacturing an air bag fabric which is later to be cut to size, comprising weaving said fabric while varying at least one member selected from the group consisting of warp and weft sett and type of weave, independently or concurrently, to obtain a plurality of fabric zones of differing air permeability and differing cut-edge or seam strength.
Specification