Process for dyeing or printing cellulosic textile fibre material by the trichromatic technique: reactive dyes
US5071442A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1991 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/918
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for dyeing or printing cellulosic textile fibre materials by the trichromatic technique, which process comprises dyeing or printing said materials from an aqueous liquor with at least one red or reddish brown dyeing dye of formula ##STR1## and at least one yellow or orange dyeing dye of formula ##STR2## and at least one blue dyeing dye of formula ##STR3## wherein A.sub.1, A.sub.2, (B.sub.2).sub.1-3, R.sub.1, R.sub.2, R.sub.3, (R.sub.4).sub.1-2, (X).sub.1-2, (T.sub.1).sub.1-2, (T.sub.2).sub.1-2, (Y).sub.1-3 and Z in formulae (1) to (7) are as defined in claim 1. The process of this invention is suitable for dyeing or printing cellulosic fibre materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.