Thermo-sensitive paper production coating process

Abstract

The invention discloses a thermo-sensitive paper production coating process and belongs to the fields of thermo-sensitive paper production coating processes. The thermo-sensitive paper production coating process comprises a bottom paper base, a thermo-sensitive coating and a protecting layer, wherein the thermo-sensitive coating is arranged between the bottom paper base and the protecting layer, and the thermo-sensitive coating is a thermo-sensitive material finished product in sheet form; the thermo-sensitive coating is placed between the bottom paper base and the protecting layer and then moderately heated so that the bottom paper base, the thermo-sensitive coating and the protecting layer can be combined into a whole; the thermo-sensitive coating between the bottom paper base and the protecting layer can be replaced by a first thermo-sensitive thin coating and a second thermo-sensitive thin coating, which are also thermo-sensitive material finished products in sheet form and of fixed thickness. The thermo-sensitive paper production coating process can achieve uniformity of the thermo-sensitive coating, to some extent solve the problem of printing color non-uniformity due to non-uniformity of the thermo-sensitive coating, and accordingly improve the printing quality.

Description

technical field [0001] The invention relates to the field of heat-sensitive paper production and coating technology, more specifically, relates to a heat-sensitive paper production and coating process. Background technique [0002] Thermal paper: as a communication carrier for text and graphics on fax machines, that is, as fax paper; as recording materials in medical and measurement systems, such as electrocardiographic drawings, thermal instrument recording paper, etc.; printing paper used in Internet terminals; In terms of commercial activities, it is used to make trademarks, POS, etc., among which fax paper occupies the largest proportion. [0003] The production principle of thermal paper is to apply particle powder on the ordinary paper base, the composition is colorless dye phenol or other acidic substances, separated by thin film, under the condition of heating, the thin film melts, and the powder mixes to develop color reaction. The colored handwriting on the therma...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems existing in the prior art, the object of the present invention is to provide a thermal paper production coating process, which can realize the homogenization of the thermal coating, and solve the problems caused by the uneven thermal coating to a certain extent. Some places have dark colors and some places have light colors, which makes the printing quality significantly improved.

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