Thermosensitive recording material
US5137864A · kind A · utility
3Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1990 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Jan 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249987
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermosensitive recording material comprising a support, an intermediate layer including a foamed portion with minute voids on the support, and a thermosensitive coloring layer formed on the intermediate layer is disclosed, which is particularly improved in such a manner that the voidage of the upper portion of the intermediate layer close to the thermosensitive coloring layer is smaller than the voidage of the lower portion of the intermediate layer close to the support, or the voidage of the intermediate layer is increased from the upper portion thereof towards the lower portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.