Manufacturing method for flowered nickel screen die roll

Abstract

The invention relates to a manufacturing method for a flowered nickel screen die roll. The technical process comprises the following steps: machining, copper plating, grinding, glue coating, pattern fabrication, laser engraving, corrosion, rubber filling and nickel plating. The preparation method is characterized in that: the pattern fabrication process comprises the following steps: applying a 70 mesh screen to a needed pattern grey scale file to obtain square mesh points with various sizes and directly form a pattern; eliminating screen pattern information loss caused by screen wires of a common nickel screen; synthetically sorting a grey chart file, the laser engraving expansion, the corrosion expansion and the die roll nickel plated screen expansion to form a laser engraved file which is represented by grey scale values from 0 to 100; and adopting a file with the grey scale value above 98 to fabricate a minimal screen wall, and adopting a file with the grey scale value below 3 to fabricate a maximal screen wall. The method adopts the grey chart and the screen with the same meshes and different mesh sizes to form the pattern, and directly fabricates the pattern on the die roll of a nickel plated circular screen. The electroplated nickel circular screen is directly used for printing without pattern information loss, and has rich gradual change gradations.

Description

technical field [0001] The utility new technology relates to printing and dyeing roll making technology, and discloses a method for manufacturing a patterned nickel mesh roll, in which pattern patterns are directly produced on the nickel mesh roll, and the round net produced by electroplating on the mold roll can be used directly without any treatment. for printing. Background technique [0002] At present, the nickel rotary screen used for fabric printing needs to manufacture the hexagonal anilox mold roll first, and obtain the nickel rotary screen with a certain mesh after electroplating. Ordinary nickel rotary screens have no patterns and only the same size meshes cannot be directly used for printing, and need to be removed. Oiling, cleaning, drying, coating of photosensitive glue, wrapping or wax spraying, exposure, development, curing and other tedious processes can produce nickel round screens that can be used for fabric printing. The network cable on the Internet wil...

AI Technical Summary

Problems solved by technology

[0002] At present, the nickel rotary screen used for fabric printing needs to manufacture the hexagonal anilox mold roll first, and obtain the nickel rotary screen with a certain mesh after electroplating. Ordinary nickel rotary screens have no patterns and only the same size meshes cannot be directly used for printing, and need to be removed. Oiling, cleaning, drying, coating of photosensitive glue, wrapping or wax spraying, exposure, development, curing and other tedious processes can produce nickel round screens that can be used for fabric printing. The network cable on the Internet will lose a lot of pattern information, especially the loss of pattern information in the transition zone, which will make the printed color excessive and the distortion is serious.

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