Manufacturing method for printing rotary screen

Abstract

A manufacturing method for a rotary printing screen comprises the steps as follows: 1, metal microfilaments or metallized nonmetal fibers are wound around on a roll at intervals in the warp and weft directions to form a metal microfilament or nonmetal fiber rotary screen; on the circumferential surface of the roll, one or more filaments are wound to form a framework in the weft direction, another one or more filaments are wound to form a framework in the warp direction, and the sequences of weaving the frameworks in the warp and weft directions can be interchanged; the frameworks in the warp and weft directions cannot in interpenetration and form a non-weaved printing rotary screen; or the frameworks in the warp and weft directions incline in the weft direction and are sequentially intertwined to and fro so as to form a crossed mesh shape; 2, the metal microfilament rotary screen or the nonmetal fiber rotary screen is treated preliminarily; and 3, the electroplating or the chemical plating, the water washing, the mesh separating, the drying and the cutting are conducted as required. The frameworks have high tensile strength and good toughness, thereby avoiding easy breakage. The percentage of opening is high, and through the use of the nonmetal fibers, the cost can be lowered. The rotary screen has a large mesh size and high high permeability. The printing rotary screen shaped like double loudspeakers is plated once through the method while twice in the prior art, therefore, the method has the advantages that the process is saved.

Description

technical field [0001] The invention belongs to the technical field of electroplating, in particular to a method for making a printing cylinder. Specifically, metal or non-metal printing cylinders are prepared by non-woven and non-stamping methods. Background technique [0002] At present, the printing circular screen mostly adopts the electroforming method. After electroforming on the mandrel, it is taken off from the mandrel for secondary plating to form a cylindrical seamless nickel screen. This method of netting must first manufacture the mandrel. Usually, the methods of making the mandrel include (1) extrusion method, that is, mechanical extrusion method with steel core male (female) mold; (2) laser method, that is, laser punching ( Melting) hole. According to the electroplating process of the copper surface of the core mold, the electroplating process can be divided into: chrome-plated mesh process (that is, the Chinese method). Someone proposed an improved printed n...

AI Technical Summary

Problems solved by technology

The printing rotary screens prepared by these two methods in China mainly include 60-mesh [Sun Juncheng, Wei Fubin, Zhang Guangde, Zhang Peihai and Su Yao, 60-mesh printing nickel screen, patent announcement number: CN 201442376U], 70-mesh [Sun Juncheng, Wei Fubin, Zhang Guangde, Zhang Peihai and Su Yao, 70 mesh printed nickel screen, patent announcement number: CN 201442373U], 80 mesh [Sun Juncheng, Wei Fubin, Zhang Guangde, Zhang Peihai and Su Yao, 80 mesh printed nickel mesh, patent announcement number: CN 201442374U], 105 mesh [Sun Juncheng, Wei Fubin, Zhang Guangde, Zhang Peihai and Su Yao, 105 mesh printing nickel mesh, patent announcement number: CN 201442375U] The opening rate is relatively low, generally below 30% [Zhou Jiaxiang, printing nickel mesh technology and product innovation] , due to the electroformed nickel mesh, the overall tensile strength of the rotary mesh is not very high, resulting in a short service life of the rotary mesh

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