Method for treating stained materials
US6812199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/043
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for treating material with a treatment composition in a water-soluble pouch, whereby firstly a part of the composition is applied to the material by partially opening the pouch to allow dispensing of part of the treatment composition, and subsequently the material and the remaining of the pouched composition are washed in water. Preferred is a method whereby the pouch has at least two compartments and one compartment, comprising a liquid composition, is opened and the liquid composition is rubbed onto the material or preferably fabric, where after the remaining of the pouch (including the still closed compartment and composition therein) are added to the wash water, for example a washing machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.