Heat-sensitive recording material with salicylic acid derivative as (color) developer reactive with a dye precursor
US10131169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2015 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Jul 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3377
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heat-sensitive recording material including a web-shaped substrate having a front side and an opposite reverse side, and at least one heat-sensitive recording layer on either or both of the sides of the web-shaped substrate. The heat-sensitive recording layer contains at least one dye precursor at least one salicylic acid derivative as a (color) developer reactive with this at least one dye precursor, and polyvinylpyrrolidone as auxiliary component augmenting the (color) developer the at least one salicylic acid derivative is 3,5-di(α-methylbenzyl)salicylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.