Reactive dye composition
US6171349A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jul 2, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A reactive dye composition comprising (a) at least a black or navy reactive dye with good color fastness to laundering-oxidative bleach response; and (b) at least a red, orange, yellow or other shade of reactive azo dye. The dye composition of the present invention is suitable for use in dyeing fiber materials. It has good property in build-up, wash fastness, wash-off, and levelness, especially performing excellently in the properties of good color fastness to laundering-oxidative bleach response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.