Textile cleaning process including soil-repellent finish
US4077770A · kind A · utility
19Cited by
5References
9Claims
0Family size
Inventors
Key dates
| Filing date | Jul 15, 1976 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Jul 15, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06L1/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In an industrial dry cleaning operation in which wrinkles are removed from the cleaned garments by suspending them in a heated atmosphere, the garments are rendered soil-resistant by spraying them with a liquid containing a dilute polyfluoroalkyl stain repellent after cleaning and prior to suspending them in a heated atmosphere in which they are heated for a time period and at a temperature sufficient to first evaporate said liquid and then to set the stain repellent concurrently with the removal of wrinkles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.