Detergent compositions which provide dye transfer inhibition benefits
US5466802A · kind A · utility
54Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Nov 10, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/72
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are detergent compositions and methods which are suitable for washing colored fabrics in aqueous washing solution with little or no transfer of dye between fabrics. The compositions utilized comprise detersive surfactant, detergent builder, certain selected polymeric dye transfer inhibiting agents and certain selected hydrophilic optical brighteners. The polymeric dye transfer inhibiting agents are polyamine N-oxides such as poly(4-vinylpyridine-N-oxide), i.e., PVNO and/or copolymers of N-vinyipyrrolidone and N-vinylimidazole, i.e., PVPVI. The optical brighteners are selected from certain stilbenedisulfonic acid salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.