Heat-sensitive recording material comprising phenol-free organic colour developers
AssigneeMitsubishi HiTec Paper Europe GmbH
InventorsNora Wilke, Claas Boxhammer
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Abstract
A description is given of a heat-sensitive recording material, comprising phenol-free organic color developers, more particularly comprising a color developer mixture comprising phenol-free organic color developers, of a heat-sensitive recording layer and also of a coating composition for producing it, of the use of the heat-sensitive recording material, of the use of an organic color developer of a formula I for improving the resistance of the printed image of a heat-sensitive recording material, and of a method for producing heat-sensitive recording material.
Claims14
A heat-sensitive recording material comprising:
- i) a carrier substrate and
- ii) a heat-sensitive recording layer, where the heat-sensitive recording layer comprises
- one or more color formers and a color developer mixture
- where the color developer mixture comprises
- a) a compound of the formula I
- and
- b) at least one further organic color developer which is or comprises a compound of the formula II
- where the mass ratio between the compound of the formula II and the compound of formula I is in the range from >90:10 to ≤98:2.
Dependencies are inferred from the claim text.