Solid dye preparation of water soluble dyes with aliphatic aminocarboxylic acid
US4465491A · kind A · utility
9Cited by
6References
14Claims
0Family size
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Key dates
| Filing date | Jul 20, 1983 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Jul 20, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0092
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The solid dye preparations contain PA0 (a) 30-90 percent by weight of a water-soluble dye, PA0 (b) 1-25 percent by weight of an aliphatic aminocarboxylic acid or a salt thereof, and PA0 (c) 0-50 percent by weight of further additives. There is preferably at least 2% of anionic dispersing agent in the preparations. The preparations are particularly suitable for dyeing textile material made from cotton, polyacrylonitrile, wool or synthetic polyamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.