Whitening of polyester fibers
US4047887A · kind A · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1975 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Apr 22, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/933
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for the whitening of polyester fibers or mixed fibers of polyesters and cellulose with dispersion fluorescence whitening agents by the pad-thermosol process in the presence of a water-soluble alkali methal tetraborate, alkali metal silicate, alkali metal aluminium sulphate, alkali metal polyphosphate or alkali metal sulphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.