Process for preventing yellowing of polyamide fibre materials treated with stain-blocking agents by treatment with water-soluble light stabilizer having fibre affinity
US4964871A · kind A · utility
53Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Apr 25, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/924
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for preventing yellowing of polyamide fibre materials treated with stain-blocking agents which comprises treating the polyamide fibre material with a water-soluble light stabilizer with affinity for the fibre before, during or after the treatment with a stain-blocking agent, and the fibre material thus treated are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.