Laundering aid for preventing dye transfer
US6833336B2 · kind B2 · utility
4Cited by
35References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Apr 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2861
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A laundry additive article comprising an insoluble polymeric amine dye absorber physically adhered to an insoluble substrate is disclosed. The insoluble polymeric amine dye absorber is dye-selective, preferentially binding fugitive dyes in a wash solution, rather than detergent components or fabrics. The laundry additive article may comprise additional components including a dye transfer inhibitor and a signal to visually indicate that fugitive dyes have been scavenged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.