Process of reducing malodors on fabrics
US11802259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2020 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Mar 8, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process of reducing malodors on fabrics includes combining fabrics having at least one source of malodor with a wash liquor having metal ions. The wash liquor is prepared by diluting a laundry detergent composition in water by a factor of between 100-fold and 3000-fold. The process further includes washing the fabrics in the wash liquor using an automatic wash operation, a manual wash operation or a mixture thereof; separating the fabrics and the wash liquor from one another; and drying the fabrics. The laundry detergent composition includes from 0.001% to 5% of an alkylated phenol antioxidant, a hindered phenol antioxidant, or mixtures thereof, and at least one of said antioxidants has a log D value at pH 7 equal to or greater than 1.50.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.