HEAT-SENSITIVE RECORDING MATERIAL WITH PAINT DEVELOPERS FROM RENEWABLE RAW MATERIALS

摘要

The present invention concerns a heat sensitive recording material comprising (i) a substrate and (ii) a heat sensitive recording layer; where the heat sensitive record layer includes at least one colour imager and at least one colour developer and the colour developer or at least one of the colour developers is selected from the group consisting of natural tannins, alkali or alkali metallic salts of tannins, oligomer proanthocyanidines, flavonoids, Carbonic acids, saccharides, saccharide derivatives, carboxymethylcellulose, resin acids, phytosterols, coumarins, monomer phenolic compounds, lignins, lignans, fatty acids,Extracts from delimitation processes and polycondensation products produced at least from Pinoresinol, Catechine, amber acid and/or almond acid as monomer units.