Epoxypropyl ammonium salt and boric acid assisted dyeing process
US4072464A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1976 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Mar 1, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/8238
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for the dyeing or printing of textile materials wherein, to improve the color rendition or the ability of the textile material to absorb the dye, the textile material is treated with a propylepoxyammonium salt having the formula ##STR1## in which R', R.sup.n and R.sup.m are alkyl radicals, preferably lower alkyl containing 1 to 3 carbon atoms and X.sup.- is an anionic group selected from the sulfate, sulfonate, phosphate or halogenide (fluoride, chloride, bromide or iodide). The fabric is subjected to an elevated temperature (thermal treatment). To prevent yellowing of the textile material the latter is also treated with boric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.