Thermally-responsive record material
US4535347A · kind A · utility
6Cited by
0References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1984 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | May 7, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3375
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermally-sensitive color-forming composition is disclosed which comprises chromogenic material, acidic developer material and a hydroxyanilide compound. Record material comprising this color-forming composition exhibits an absence of image bloom and improved color-forming efficiency and/or image density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.