Method for producing woven fabrics
AssigneeBerger Seiba-Technotex Verwaltungs GmbH & Co.
InventorsJohann Berger, Holger Saint-Denis
Life of this patent
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Abstract
A method for producing woven fabrics, especially airbag woven fabrics, while using a multiphase weaving machine in the following steps: weaving a fabric comprised of filament threads in warp and weft on the multiphase weaving machine, whereby a high shrinking type of yarn is used as the warp and an average to low shrinking type of yarn is used as the weft, and finishing the woven fabric by hydroshrinking and/or thermoshrinking.
Claims30
A method for producing woven fabrics making use of a multiphase weaving machine comprising the steps a) weaving a fabric comprised of filament threads in weft and warp on the multiphase weaving machine, wherein a high-shrinkage type of yarn is used as the warp and a medium to low shrinkage type of yarn is used as the weft;
- and b) finishing the woven by shrinking, the low density threads more than the higher density threads after weaving.
A method for producing woven fabrics comprising the steps of:
- a) weaving a fabric comprised of filament threads in weft and warp, wherein a high-shrinkage type of yarn is used as the warp and a medium to low shrinkage type of yarn is used as the weft;
- and
- b) finishing the woven by shrinking the lower density threads more than the higher density threads after weaving.
A method of producing a woven fabric, the method comprising:
- weaving a fabric from filament threads in warp and weft so that an asymmetric thread density fabric is produced, said warp filament thread being a higher-shrinkage yarn than said weft filament thread;
- and
- shrinking the lower density threads more than the higher density threads after weaving said asymmetric thread density fabric so that a generally predetermined thread density fabric is produced.
A method for producing woven fabrics with irreversible shrinkable filament warp and weft yarns, in making use of a multiphase weaving machine, the method comprising:
- (a) weaving a fabric of filament threads in weft and warp on the multiphase weaving machine, wherein a high-shrinkage type of yarn is used as the warp and a medium-to-low shrinkage type of yarn is used as the weft;
- and
- (b) finishing the woven by shrinking the lower density threads more than the higher density threads after weaving.
A method for producing airbag woven fabrics, in making use of a multiphase weaving machine, the method comprising:
- (a) weaving a fabric of filament threads in weft and warp on the multiphase weaving machine, wherein a high-shrinkage type of yarn is used as the warp and a medium-to-low shrinkage type of yarn is used as the weft;
- and
- (b) finishing the woven by shrinking the lower density threads more than the higher density threads after weaving.
A method of manufacturing a product, the method comprising:
- (a) weaving an asymmetrical thread density fabric on a multiphase weaving machine by using a high-shrinkage type of warp yarn and a medium-to-low shrinkage type of weft yarn;
- (b) finishing the woven by shrinking the lower density threads more than the higher density threads after weaving the asymmetric thread density fabric to create a substantially symmetrical thread density in the fabric;
- and
- (c) creating an airbag from the finished fabric.
A method of manufacturing a product, the method comprising:
- (a) weaving a fabric with higher density threads in a first direction and lower density threads in substantially perpendicular second direction;
- (b) shrinking the lower density more than the higher density threads after weaving;
- (c) causing the fabric to have substantially the same density in the first and second directions after the shrinking;
- and
- (d) creating an inflatable safety device from the shrunk and woven fabric.
Dependencies are inferred from the claim text.