Alkyl- or aryl-amino-pyridinyl- or pyrimidinyl-azo yellow dye-donor element for thermal dye transfer
US4914077A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1989 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Mar 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yellow dye-donor element for thermal dye transfer comprising a plastic film support having thereon a yellow dye dispersed in a polymeric binder, the dye comprising an alkyl- or aryl-amino-pyridinyl- or pyrimidinyl-azo yellow dye which does not have any reactive pendant moiety capable of undergoing Michael-type addition. In a preferred embodiment of the invention, the dye has the formula: ##STR1## where R.sup.1 and R.sup.2 each independently represent a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; a cycloalkyl group having from about 5 to about 7 carbon atoms or an aryl group having from about 6 to about 10 carbon atoms; PA1 R.sup.3 represents hydrogen or R.sup.1 ; PA1 R.sup.4 represents hydrogen or R.sup.1 ; PA1 R.sup.5 represents halogen; cyano; nitro; a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 10 carbon atoms; a cycloalkyl group having from about 5 to about 7 carbon atoms; a substituted or unsubstituted aryl or aryloxy group having from about 6 to about 10 carbon atoms; COOR.sup.1 ; CON(R.sup.4).sub.2 ; NHCOR.sup.1 ; NHSO.sub.2 R.sup.1 ; SO.sub.2 R.sup.1 ; or COR.sup.1 ; PA1 X represents N or CR.sup.6 ; PA1 R.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.