Method of cleaning heavily soiled textiles
US5112358A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1990 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Jan 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Heavily soiled shop towels, mops and other industrial laundry are initially contacted with a mixture of a cleaning solvent and an emulsifier to efficiently penetrate the industrial soil in the fabric. Thereafter water is added to provide an oil-in-water emulsion cleaning composition which effectively removes both the industrial soil and the solvent from the goods. A preferred class of hydrocarbon solvents suitable for this purpose is the class of solvents known as terpene solvents. Particularly suitable are terpene solvents having a tagg closed cup flash point, of 140.degree. F. or higher. The oil-in-water emulsion thereafter is demulsified for separation of the cleaning solvent from the water and recycle of the solvent to the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.