Reactive dyestuffs containing the residue of 1-hydroxy-7-amino-8-(5'-amino-2',4'-disulphophenylazo)naphthalene-3,6-di sulphonic acid
US4191687A · kind A · utility
17Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1978 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Mar 16, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/0085
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reactive dyestuffs of the formula: ##STR1## wherein Q represents a cellulose reactive group. Dyes can be used to color cellulose textiles in red shades having surprisingly good light fastness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.