Process for felt proofing and dimensionally stabilizing textiles made of fibers which contain keratin
US3986829A · kind A · utility
1Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1973 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Aug 17, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2762
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A simple and economical one-step process for felt-proofing and dimensionally stabilizing textiles, particularly textiles based on keratinous fibers is disclosed. In the process, the textiles are treated with aqueous baths which contain salts of sulfurous acid or pyrosulphites as reducing agents and polyurethanes which contain onium groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.