Fabric softening detersive article
US4818422A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Sep 17, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/72
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fabric softening and detersive article, preferably in the form of a flexible non-woven fabric pouch, is permeable to passage of a contained fabric softening detergent composition into wash water in an automatic washing machine. The presence of a relatively minor proportion of anionic surfactant in the fabric softening detergent composition (which also contains nonionic detergent, cationic fabric softener and builder for the nonionic detergent) promotes passage of all or substantially all of the fabric softening detergent composition and its components through the pouch walls so that little or no residue remains therein after completion of the washing operation even when the wash water is cold, e.g., about 20.degree. C. Thus, efficiencies of washing and fabric softening are improved and no objectionable residue is left in the pouch, which could otherwise lead to consumer rejection of such a product. Also within the invention is a liquid detergent composition comprising a mutual neutral solution of anionic detergent and nonionic detergent, preferably with some water present as a co-solvent, which is useful in manufacturing the detergent compositions of the present articles, a proce…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.