Crosslinking agents for textile printing fixing agents
US5607482A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/5285
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a method for textile printing with aqueous dispersions in which an organic fixing agent is crosslinked with a blocked polyisocyanate having (i) an average molecular weight of about 800 to about 25,000, (ii) a content of blocked isocyanate groups, calculated as free NCO and based on non-blocked polyisocyanate, corresponding to an NCO content of about 5 to about 20% by weight, (iii) an ionic group content of about 1 to about 75 milliequivalents per 100 g of blocked polyisocyanate, and (iv) a content of polyalkylene oxide units of about 1 to about 20% by weight, based on blocked polyisocyanate, said blocked polyisocyanate being obtained by the reaction of PA1 (a) organic polyisocyanates, PA1 (b) isocyanate-reactive compounds containing (potential) ionic groups, PA1 (c) polyalkylene ether alcohols, PA1 (d) NCO blocking agents, and PA1 (e) optionally, isocyanate-reactive compounds that are different from components (b), (c), and (d).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.