Infrared absorbing quinoid dyes for dye-donor element used in laser-induced thermal dye transfer
US4952552A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1990 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Jan 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A dye-donor element for laser-induced thermal dye transfer comprising a support having thereon a dye layer which also contains an infrared-absorbing material which is different from the dye, and wherein the infrared-absorbing material is a quinoid dye derived from an anthraquinone or naphthoquinone having the following formula: ##STR1## wherein: Z represents the atoms necessary to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; PA1 each R independently represents hydrogen, a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 6 carbon atoms or an aryl or hetaryl group having from about 5 to about 10 atoms; PA1 m is 4; and PA1 n is 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.