Heat-sensitive recording materials
US4471074A · kind A · utility
4Cited by
0References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1982 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Nov 18, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3375
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heat-sensitive recording material is disclosed. The material is comprised of an electron donating colorless dye and electron accepting compound in combination with naphthol derivative. The inclusion of the naphthol derivative as disclosed by applicants results in producing increased color density and sensitivity. Furthermore, the resulting material does not suffer from increased fogging and produces a color image which has sufficient fastness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.