Thermal dye transfer sheet
US4954478A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 23, 1988 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Nov 23, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal magenta-dye transfer sheet that comprises a base film having thereon a dye layer comprising a magenta-dye dispersed in a binder which is mixture of two dyes represented by the general formulas (I) and (II): ##STR1## (where X is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a formylamino group, a lower alkylcarbonylamino group, a lower alkylsulfonylamino group or a lower alkoxy-carbonylamino group; Y is a hydrogen atom, a lower alkyl group, a lower alkoxy group or a halogen atom; and R.sup.1, R.sup.2 and R.sup.3 each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a cycloalkyl group, an allyl group or a substituted or unsubstituted aryl group); and ##STR2## Z is a hydrogen atom or a lower alkyl group; and R.sup.4 and R.sup.5 each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a cycloalkyl group, an allyl group, or a substituted or unsubstituted aryl group, and R.sup.4 may also form a heterocyclic 6-membered ring by being bonded to a carbon atom adjacent to the carbon binding to the nitrogen atom which is bonded to the benzene ring).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.