Patent ID: 9050844
Filing Date: 2015-06-09
Classification: B41M

Abstract:
1. A heat-sensitive recording material comprising: a substrate, a heat-sensitive recording layer arranged on the front side of the substrate including at least one dye precursor and at least one color acceptor, said dye precursor and color acceptor reacting with one another under the action of heat to form color, a protective layer covering said heat-sensitive recording layer, a barrier coating comprising ethylene vinyl alcohol copolymer (EVOH) for protecting said heat-sensitive recording layer against penetration of chemicals causing uncontrolled desensitizing reactions and color reactions in said heat-sensitive recording layer, said barrier coating being arranged between said substrate and said heat-sensitive recording layer, and a tincture, as authenticating security feature, being one of introduced into said substrate and applied to at least one side of said substrate; wherein said authenticating security feature is formed as a tincture based on one of at least glycerol, oils and fats applied to said substrate.