Method for producing pure line with character of height less than 1mm and thickness less than 0.05mm by gravure

Abstract

The invention relates to a pure line manufacturing method for gravure-printing characters with height of less than 1 millimeter and lines with thickness of 0.05 millimeter, which comprises the following steps: manufacturing solid superfine characters and lines by special typesetting software, and particularly controlling the thickness of the strokes of the characters below 0.06 millimeter; and using a copper plated roller to hang special black rubber of which the viscosity is 14 to 16 seconds and speed is 35 to 25 meters per minute, and then eroding the characters and the lines by copper chloride, wherein pre-eroding takes 15 to 20 seconds, the formal eroding time is between 80 and 150 seconds, and the eroding depth is between 15 and 16 mu. Therefore, the method achieves the aim of the superfine characters and the lines.

Description

Technical field [0001] The invention relates to a pure line production method for gravure printing characters below 1mm in height and lines below 0.05mm in thickness, which is suitable for the production process of laser engraving gravure printing plate roll technology. Background technique [0002] At present, electronic engraving technology generally cannot guarantee the clarity of text below 1mm high and the transfer printing of lines below 0.05mm thick, nor can it guarantee the uniformity of oblique lines without deformation. In addition, the depth cannot reach the depth required for printing. Because the electronic engraving machine has limitations in the number of dot lines and depth. [0003] When laser engraving technology handles ultra-fine characters and lines in gravure printing, it is generally realized by using a high line count of 300 lines / inch and deepening the hanging net. This method can only deal with small characters above 1mm in height and lines above 0....

AI Technical Summary

Problems solved by technology

[0003] When laser engraving technology handles ultra-fine characters and lines in gravure printing, it is generally realized by using a high line count of 300 lines / inch and deepening the hanging net. This method can only deal with small characters above 1mm in height and lines above 0.05mm in thickness. , but when dealing with small characters below 1mm in height and lines below 0.05mm in thickness, it cannot meet the requirements of fineness and definition, because it is limited by the number of lines and the distribution of mesh shape

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