Process for fixing dyes in textile materials
US5922088A · kind A · utility
16Cited by
3References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/929
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for fixing dyes impregnated in fine-dimensional synthetic textile substrates in an environmentally safe manner. The process comprises contacting the dyed synthetic substrates with a phenol- and formaldehyde-free dye-fixative composition comprising: PA1 (a) polymethacrylic acid, PA1 (b) copolymers of methacrylic acid consisting essentially of methacrylic acid and an ethylenically unsaturated comonomer selected from the group consisting of 2-acrylamido-2-methyl-propanesulfonic acid, sodium vinyl sulfonate, sodium styrene sulfonate, alkyl acrylate, PA1 (c) sulfamic acid, and PA1 (d) combinations of (a), (b) and (c).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.