Thermal dye-transfer type recording sheet
US4474859A · kind A · utility
30Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1982 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Feb 5, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31797
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Thermal dye-transfer type recording sheet, having a coating layer which is placed on a base sheet, is contacted with a coloring material layer being solid or semisolid state at room temperature and on which a coloring material is transferred selectively by heating, wherein said coating layer comprises at least mixture of saturated polyester and polyvinyl pyrrolidone in a particular ratio. The sheet provides a very clear record with superior light fastness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.