Transfer dyes and transfer printing process
US4159192A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1977 |
| Grant date | Jun 26, 1979 |
| Priority date | — |
| Expiry date | Sep 13, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B23/0058
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for printing flat-surface structures made from synthetic man-made or regenerated man-made polymer materials, for example polyester, polyacetate and preferably polyacrylonitrile fibres, by transfer printing, by means of auxiliary carriers which are printed with printing inks or printing pastes using dyes of the formula I ##STR1## wherein N IS 0 OR 1, PA0 R.sub.1 represents hydrogen, methyl, ethyl, propyl or butyl, branched or unbranched, while R.sub.1 together with the phenyl nucleus can form a 6-membered heterocyclic ring, PA0 R.sub.2 represents hydrogen, methyl, ethyl, propyl, branched or unbranched, cyanomethyl, cyanoethyl, hydroxyethyl, chloroethyl, phenyl or benzyl, substituted or unsubstituted, and PA0 R.sub.3 represents hydrogen, methyl, ethyl and nitro, or PA0 R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached form a 5- or 6-membered heterocyclic ring, in particular morpholine. Furthermore the invention relates to novel dyes of the formulae ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.