Process for fixing dyes in textile materials
US5464452A · kind A · utility
8Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1994 |
| Grant date | Nov 7, 1995 |
| Priority date | — |
| Expiry date | May 10, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/241
- 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: (a) polymethacrylic acid, (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, and combinations thereof, (c) combinations of (a) and (b), and (d) water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.