Thermal transfer sheet
US5374601A · kind A · utility
6Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1992 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | May 4, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/914
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a pyridine derivative represented by the following formula A or B, a dye produced by coupling the pyridine derivative A or B with an arbitray coupler and a thermal transfer sheet wherein use is made of the dye. In a thermal transfer process wherein use is made of a sublimable dye, the dye and the thermal transfer sheet according to the present invention can form a clear image having a sufficient density and an excellent light fastness. ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.