Process for dyeing cellulosic fibre materials with reactive phthalocyanine dyes from bath containing colorless compounds
US5000756A · kind A · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Dec 1, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/918
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for dyeing cellulosic fibre materials with reactive dyes by the pad dyeing process in the process of an assistant, which process comprises the use of a mixture containing PA0 (a) at least one reactive dye of formula ##STR1## wherein Pc, W, k, R.sub.1, R.sub.2, B and R are as defined in claim 1, and PA0 (b) at least one colorless compound which contains at least one --SO.sub.2 --Z group, wherein Z is as defined in claim 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.