Manufacture method of WK85 rotary printing screen

Abstract

The invention provides a manufacture method of a WK85 rotary printing screen. The manufacture method of the WK85 rotary printing screen comprises the steps of ground mould manufacturing, arrangement of a plating on the ground mould, primary nickel plating and secondary nickel plating, wherein the ground mould comprises a male mould, and a spur of the male mould is in a conical surface involute type; the plating comprises a base layer which is a chromium coating; and the width of a steel wire after pressure polishing treatment is within the range of 10-30 micrometers. The manufacture method of the WK85 rotary printing screen has the effects that the thickness of the WK85 rotary printing screen produced through the method is larger than or equal to 160 micrometers, the thickness deviation is smaller than 5 micrometers, the aperture ratio is larger than or equal to 35%, and the aperture ratio deviation is smaller than or equal to 1%; the paste permeating quantity is larger than or equal to 56 ml / mm<2>; restoring is fast, the restoring effect is good, workable pressure in the printing process is large, the wax penetrating effect is good, the available turning speed is high, the printing quantity each time is large in meter number, screen cleaning is not required, and the number of repeated use times is large up to 16; and at the same time, the screen beating is slight in the printing process, the stability is good, register is accurate, and the effects of copper roller printing can be achieved when the WK85 rotary printing screen is used for printing fine patterns.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a printing rotary screen, in particular to a method for making a WK85 printing rotary screen. Background technique [0002] There are two ways to print wax in real wax printing. [0003] One is machine printing, that is, printing with a printing copper roller. Its advantage is that it is easy to print fine patterns and the printing effect is better. [0004] The production method of the printing copper roller is: select the steel pipe with the required outer diameter, wall thickness and length, perform mechanical processing such as turning and grinding on the outer surface, add a brazing head after the inner hole is processed, and then electroplate a bonding layer on the surface. After activation, a copper layer of a certain thickness is plated on it. The copper layer is turned into a copper roller of the required size through the process of turning and grinding. Fin...

AI Technical Summary

Problems solved by technology

Existing 80-mesh wax-printed nickel screen: a thickness between 110 and 120 μm, and a porosity of less than 18%, because the pore size is too small, the amount of slurry is only 20.7 ml / mm 2 , the wax penetration effect is poor during the printing process, it cannot be used at a high speed and it is easy to block holes, it needs to be cleaned after printing a certain number of meters, the production efficiency is low and it is not environmentally friendly; the other thickness is between 100 and 110 μm , the opening rate is about 20%, the pore diameter is relatively large, and the amount of slurry can reach 22 ml / mm 2 , but the thickness of the net is not enough, the strength is poor, the net is easy to break, and the number of repeated uses is small, which affects the printing length, which also increases the production cost and reduces the production efficiency