Thermal printing head heating substrate ground glaze printing preparation method

Abstract

The invention relates to a thermal printing head heating substrate ground glaze printing preparation method. The method comprises the following steps that firstly, a reduction reaction is carried outon a potassium iodide etching solution containing gold ions so as to precipitate gold metal; and then the treated potassium iodide etching solution is subjected to an iodide ion oxidation reaction, sothat iodine molecules are separated out. The gold metal and iodine molecule components in the etching solution can be effectively and continuously recovered through the method.

Description

technical field [0001] The invention relates to a method for preparing a heating substrate of a thermal printing head, in particular to a method for preparing a base glaze printing of a heating substrate of a thermal printing head. Background technique [0002] When the thermal print head is working, the heat of the print head causes the heat-sensitive medium to develop color. When heated, the color-forming layer of the heat-sensitive medium is in a molten state. During the cooling process, it is always in contact with the print head, and the melt of the chromophoric layer will stick to the print head, forming carbon deposits, which will affect the printing density and product life; in addition, the cooling of the heat-sensitive medium melt will also cause thermal print head Sticky paper, the specific performance is that the heat-sensitive media will stick to the print head to varying degrees, and cannot pass through the print head smoothly, resulting in missing lines and no...

AI Technical Summary

Problems solved by technology

[0007] Based on this, it is necessary to provide a thermal printing head heating substrate primer printing method that can solve the problems of insufficient flatness and uneven thickness of the glass layer surface after printing with the existing primer fabrication technology