Color acceptor reacting in a color-forming manner to a pigment precursor and heat-sensitive recording material having such a color acceptor
US9308762B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 11, 2012 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Nov 2, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M2205/38
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A color acceptor for chemical reaction with a dye precursor to form a visually recognizable color. The color acceptor is constructed of lactic acid monomers. Also disclosed is a heat-sensitive recording material with a substrate and a heat-sensitive recording layer, wherein the heat-sensitive recording layer contains at least one dye precursor and at least one color acceptor which react with one another in a color-forming manner when heat is applied, and wherein the color acceptor is constructed of lactic acid monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.