Thermosensitive recording sheet
US4616240A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Apr 2, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/44
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermosensitive recording sheet comprises a support material; a thermosensitive coloring layer formed on the support material, comprising a colorless or light-colored leuco dye, and an acidic material which colors the leuco dye upon application of heat thereto; and a protective layer formed on the thermosensitive coloring layer, comprising a water-soluble polymeric binder and silica powder with an oil absorption of 150% or more and with a bulk density of 5 ml/g or more, which are measured in accordance with Japanese Industrial Standard K 5101. This thermosensitive recording sheet has high dynamic thermal coloring sensitivity, is capable of yielding sharp images with high image density at low energy consumption with good thermal head-matching properties, and is resistant to chemicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.