Thermo-sensitive recording label paper
US5061677A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1989 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Dec 12, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2003/0282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermo-sensitive recording label paper comprising a laminate which comprises PA1 (1) a thermo-sensitive color-developing layer containing at least a colorless or lightly colored leuco-dye provided on one surface of a paper support, (2) a protective layer provided on the color-developing layer, and (3) at least one of a back layer and a protective underlayer, said back layer being provided on the other surface of the paper support, and said protective underlayer being provided between said paper support and said color-developing layer; PA1 the laminate having an internal bond strength of 2.5 kg-cm or more according to Tappi UM-403, and the surface of the protective layer of the laminate having a Bekk smoothness of 500 seconds or more according to JIS P8119.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.