Black dye mixtures of fiber-reactive azo dyes, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-cont
US6036732A · kind A · utility
6Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1999 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Apr 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/924
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is a dye mixture containing one or more disazo dyes conforming to the formula (1), one or more monoazo dyes conforming to the formula (2), and one or more dyes of the formulae (3) The invention further relates to a method for its preparation and a process for dyeing hydroxy- and/or carboxamido containing fiber material in which the inventive dye is applied to the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.