Process for the whitening of textile fibres of polyesters
US4057387A · kind A · utility
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3References
3Claims
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Assignee
Inventors
Key dates
| Filing date | Jan 8, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Jan 8, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/933
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for whitening textile fibres of polyesters or blended fibres of polyesters and cellulose or wool with dispers fluorescent whitening agents according to a combined exhaustion and thermo-fixing process, in the presence of auxiliaries e.g. esters in combination with water-soluble alkali metal salts or ampholytes which are capable of forming an aqueous two-phase system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.