Special thermosensitive paper for ink jet

Abstract

The invention relates to a special thermosensitive paper for ink jet. The special thermosensitive paper sequentially comprises a base paper layer, a prime coat layer, a temperature-resistant chromogenic layer, a protection layer and an absorption layer from bottom to top, wherein the prime coat layer, the temperature-resistant chromogenic layer, the protection layer and the absorption layer are respectively coated with different coating liquids. According to the present invention, the ink absorption speed of the special thermosensitive paper coating having the protection layer can be improved;the absorption layer is coated on the protection layer to achieve the rapid drying purpose, such that the problem of paper surface pollution or unclear pattern caused by difficult drying can be solved; the influence on the thermal insulation of the printing can be solved by additionally arranging the absorption layer; the prime coat layer uses a sufficient amount of the hollow spheres, and the coating amount is increased, such that the heat insulation effect can be improved; with the chromogenic layer, the chromogenesis cannot be affected by the drying temperature when the prefabricated bar code is dried; the protection layer does not require the adding of the organic filler so as to improve the heat transfer effect; and the absorption layer uses the inorganic filler with advantages of strong absorption and good heat transfer performance so as to easily transfer the heat.

Description

technical field [0001] The invention relates to the technical field of heat-sensitive paper, in particular to a special heat-sensitive paper specially used for inkjet, which is suitable for rapid drying of codes and stamp imprints, such as heat-sensitive electronic invoices, receipt vouchers and the like. Background technique [0002] With the development of special thermal paper technology, its quality is becoming more and more mature and its use is simple and convenient, its application field is more and more extensive. After the invoice or receipt is used, it is necessary to prefabricate a barcode on the ticket for identification or stamping for confirmation. In order to achieve a certain protective function, the special thermal paper with a protective layer on the market is generally composed of a large amount of PVA or acrylic latex. The coating is relatively closed, and the absorption performance of water-based ink is weak. When it is used as an electronic invoice, it ...

AI Technical Summary

Problems solved by technology

In order to achieve a certain protective function, the special thermal paper with a protective layer on the market is generally composed of a large amount of PVA or acrylic latex. The coating is relatively closed, and the absorption performance of water-based ink is weak. When it is used as an electronic invoice, it needs to be prefabricated on the face. When barcoding, because the coating is not easy to absorb ink and it is difficult to dry, the barcode is not clear enough, which affects the reading of the bill

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