Inhibition of re-absorption of migrating dyes in the wash liquor
US5741920A · kind A · utility
5Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/0021
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for inhibiting the re-absorption of migrating dyes in the wash liquor comprises introducing into a wash liquor containing a peroxide-containing detergent, from 0.5 to 150 mg, per liter of wash liquor, of one or more manganese compounds having the formula (1), (2), (3), (4), (5), (6) or (7) as defined in the specification. The manganese compounds do not exhaust at all on to cotton, polyamide or polyester fibres so that the compounds cannot lead to fibre discolouration problems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.