Process for the preparation of woven fabrics of low air permeability
US4445903A · kind A · utility
9Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1983 |
| Grant date | May 1, 1984 |
| Priority date | — |
| Expiry date | Apr 26, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/8214
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for the preparation of a woven fabric of low air permeability which comprises preparing a woven fabric by use of a composite fiber of a splitting and severing type, which consists of polyester and polyamide and produces extremely fine fibers of 0.001 to 0.8 denier size, as a warp and/or a weft; treating thus obtained woven fabric by use of an aqueous emulsion of a swelling agent for polyester and nylon under the conditions where nylon is mainly allowed to swell and then shrink; scouring and dyeing the woven fabric; and after calendering the woven fabric with the use of heated rollers rotated under pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.