Process for aftertreating dyed cellulosic material
US4721512A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1986 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Oct 30, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for aftertreating cellulosic fibre material using an aqueous liquor which comprises PA0 (A) a diquaternary ammonium salt of formula ##STR1## wherein Q is a divalent aliphatic hydrocarbon radical of 2 to 12 carbon atoms which may be interrupted in the chain by oxygen atoms and is unsubstituted or substituted by hydroxy groups, PA1 R.sub.1 and R.sub.2 are each independently of the other an aliphatic radical of 6 to 24 carbon atoms, PA1 R.sub.3 to R.sub.6 are each independently of the other lower alkyl, hydroxy-lower alkyl or lower alkoxy-lower alkyl, PA1 X.sub.1 and X.sub.2 are each oxygen or --NH--, PA1 Z.sub.1 and Z.sub.2 are each independently of the other C.sub.2 -C.sub.6 alkylene, and PA1 Y.crclbar. is an anion of a strong inorganic or organic acid, and PA0 (B) a polybasic nitrogen-containing polycondensate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.