Color acceptor reacting in a color-forming manner to a pigment precursor and heat-sensitive recording material having such a color acceptor
AssigneeMitsubishi HiTec Paper Europe GmbH
InventorMatthias Neukirch
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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.
Claims20
A color acceptor for chemical reaction with a dye precursor to form a visually recognizable color, wherein said color acceptor contains a molecule from an n-valent acid and oligomers of polylactic acid which are grouped n-fold around said acid or is formed by said molecule.
A heat-sensitive recording material with a substrate and a heat-sensitive recording layer, wherein said heat-sensitive recording layer comprises 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, wherein said color acceptor is constructed of lactic acid monomers.
A color forming composition comprising a color acceptor and a dye precursor for forming a visually recognizable color, wherein said color acceptor is constructed of lactic acid monomers.
Dependencies are inferred from the claim text.