Mitsubishi Hitec Paper Europe Gmbh

Mitsubishi Hitech Paper Europe Gmbh

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Gerhard Stork

Matthias Marx

Annette Schreiber

Svenja Eisernitz

A method for producing a heat-sensitive recording material comprises: preparing a first coating composition, which includes as color acceptor 4,4'-dihydroxydiphenyl sulfone, at least one sensitizer selected from the list of methylolstearamide, stearic acid amide, and dimethyl terephtalate; preparing a second coating composition, which includes: from 65 to 95% by weight of one or more (meth)acrylate from 0 to 20% by weight of photoinitiators and from 0.5 to 20% by weight of wax; applying the prepared first coating composition to form the heat-sensitive recording layer on the front side of the substrate; drying the first coating composition; applying the second coating composition to form the protective layer covering the heat-sensitive recording layer; crosslinking the protective layer covering the heat-sensitive recording layer; applying the second coating composition to form the coating on the back side of the substrate; crosslinking the coating.

Method for producing a heat-sensitive recording material

A heat-sensitive recording material includes a paper web with recycled fibers and a heat-sensitive recording layer includes color formers and color acceptors. The amount of recycled fiber contained in the paper web is at least 70 percent by weight, and the heat-sensitive recording layer has, as color acceptor, at least 33&#x2153; percent by weight of N-(p-toluenesulphonyl)-N'-3-(p-toluenesulphonyloxyphenyl)urea in relation to the total content of color acceptors in the heat-sensitive recording layer.

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Flensburg, Germany

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