Heat-sensitive recording sheet
US4590500A · kind A · utility
4Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Aug 21, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Heat-sensitive recording sheet comprising a base sheet and a color-forming layer including a colorless basic dyestuff and an organic color-developing agent, wherein said color-forming layer comprises a metal derivative of phthalic acid monoester (having a particular formula). The sheet provides superior stability against contamination with oily substances while keeping excellent fundamental qualities thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.