Heat-sensitive recording sheet
US5427996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1993 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Sep 8, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3375
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heat-sensitive recording sheet superior in color formation and sticking resistance and excellent in storage stabilities such as plasticizer resistance and wet-rub resistance and printability which comprises a support and, provided thereon, a heat-sensitive recording layer and a protective layer is provided by using as a main component of the protective layer in the case of the protective layer comprising one layer a latex having a softening point of 200.degree.-350.degree. C. obtained by polymerizing mainly a specific hydrophobic vinyl monomer in the presence of a polymeric latex having a glass transition temperature of 50.degree. C. or lower and as a main component of the protective layer in the case of the protective layer comprising two or more layers a latex having a softening point of 150.degree.-260.degree. C. in the inner layer(s) and preferably, using in the outermost protective layer said specific latex having a softening point of 200.degree.-350.degree. C. used in the protective layer comprising one layer. Furthermore, the heat-sensitive recording layer may optionally contain 2,4'-dihydroxydiphenyl sulfone and preferably a hindered phenol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.