Thermal transfer printing
US5070069A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1989 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Sep 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A transfer sheet, suitable for use in a dye diffusion thermal transfer printing process for the production of images in accordance with a pattern information signal, comprising a substrate having a coating comprising a binder, one or more anthraquinone dyes of Formula I ##STR1## wherein R.sup.1 represents alkyl, alkenyl, cycloalkyl, haloalkyl, cyanoalkyl, alkoxyalkyl, alkoxyalkoxyalky, hydroxyalkyl, hydroxyalkoxyalkyl, hydroxyalkylthioalkyl, tetrahydrofurfuryl, alkenyloxyalkyl, tetrahydrofurfuryloxyalkyl, alkoxycarbonylalkyl, alkoxycarbonyloxyalkyl or alkoxycarbonyloxyalkyl, and PA0 R.sup.2 represents any of the substituents represented by R.sup.1 or a radical of the formula: ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5 each independently represents hydrogen, halogen, and one or more bisazo dyes of Formula II: EQU A--N.dbd.N--B--N.dbd.N--E II PA0 wherein: PA1 A is the residue of a diazotizable phenylamine or naphthylamine, A--NH.sub.2, carrying not more than one unsaturated electron-withdrawing group; PA1 B is an optionally substituted thiophen-2,5-ylene or thiazol-2,5-ylene group; and PA1 E is the residue of an aromatic coupling component E--X wherein X is an atom or group displa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.