Method for dyeing aromatic polyamide fibrous materials: N,N-diethyl(meta-toluamide) dye carrier
US5207803A · kind A · utility
13Cited by
16References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1990 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Sep 28, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/925
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for dyeing fibrous material is provided. The method includes contacting a fibrous material with a carrier and a dye soluble or dispersed with the carrier in a dyebath. The carrier comprises an N-substituted aromatic carbonamide or an N,N-disubstituted aromatic carbonamide or mixture thereof. The carrier system of the present can be advantageously utilized for improving dye and flame resistant properties of difficult to dye fibers such as aromatic polyamide fibers, polybenzimidazole fibers and aromatic polyimide fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.