Concentrated stable solutions of coupling components for the ice color dyeing, their preparation and use
US4078887A · kind A · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1976 |
| Grant date | Mar 14, 1978 |
| Priority date | — |
| Expiry date | Nov 22, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Highly concentrated solutions of coupling components of the ice-color dyeing technique had been found which possess a very good stability to storage and can readily be used for the preparation of diluted aqueous bottoming baths of the ice-color technique; these novel solutions contain the coupling component, water, sodium-or potassium hydroxide, and are characterized by the imperative content of diethylene-glycol or a content of a mixture of diethylene-glycol and ethylene-glycol or propylene-glycol or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.