Manufacturing method and product for nickel screen die roll for fabric printing

Abstract

The invention relates to a manufacturing method and a product for a nickel screen die roll for fabric printing. The process comprises the following steps: machining, electroplating, copper grinding and polishing, glue coating, description and typesetting, corrosion, and detection. The manufacturing method is characterized in that: the procedure of the description and typesetting is followed by laser engraving; the laser engraving has the concentricity jump of a calibrated printing roll less than or equal to 0.02, printing roll rotating speed of 700 r/min, dynamic balance less than 2, laser power of 20W and engraving length of 2,220 mm; the laser engraving is centrally symmetric; the shape of the nickel screen die roll is a hexagonal, square, diamond or circular mesh point die roll rotating15 degrees; mesh points are U-shaped; and a screen wall is fine and is almost perpendicular. The manufacturing method adopts a jointless laser engraving technique and a controllable corrosion process. The product has the U-shaped mesh points with a large bottom area so as to greatly improve the strength of binding with stuffed insulating rubber, prolong the service life of the die roll, and having relatively stable nickel screen aperture ratio and fewer changes.

Description

technical field [0001] The invention relates to a manufacturing technology of a printing nickel cylinder mold roll, in particular discloses a manufacturing method of a nickel mesh mold roll for fabric printing and dyeing, which is different from the traditional mechanical rolling dot mold roll process. The invention adopts an advanced laser Engraving seamless technology and controllable corrosion process, the etched dot shape of the product of the present invention is U-shaped, which improves the precision and service life of the nickel cylinder mold roll. Background technique [0002] my country is a big country in textile printing and dyeing, and a large amount of textiles are exported to Europe and America, which has created rich foreign exchange for our country. Except for a small amount of roller printing, most of the textiles use rotary screen printing. The quality of the rotary screen directly affects the printing quality and affects the textile export market. The an...

AI Technical Summary

Problems solved by technology

The main reason is that my country's nickel mesh production equipment is simple, the technology is backward, and the consistency and stability of the product cannot be guaranteed.

Among them, the mold rolls for net making still adopt the traditional backward mechanical die rolling process. The rolled dots are V-shaped, and the mesh walls are inverted V-shaped. During the rolling process, the mesh walls are higher than the original finely ground plane of the mold rolls. After the glue is polished, the mesh wall is easy to become thick and uneven, which seriously restricts the opening rate and uniformity of the main technical indicators of the electroformed nickel round mesh; The force is not strong, and the V-shaped filling glue is easy to be pulled out. When the mold roller is used for a period of time, it is easy to lose the glue and needs to be repaired and polished. The mesh wall further becomes thicker and more uneven, and the quality of the mold roller deteriorates rapidly. The quality of the mesh is greatly reduced, making the quality of the nickel mesh unstable

The processing method of mechanical rolling dots still has great limitations. It is difficult to manufacture mold rolls with too low mesh number and irregular arrangement, and it is difficult to process too high mesh number. It is also difficult to rotate the hexagonal mesh roll if necessary.

For mold rolls larger than 155 mesh, most domestic manufacturers cannot process qualified products by mechanical rolling. Without changing the method of mechanical rolling point of nickel mesh mold rolls, it is difficult for most domestic nickel mesh factories to get out of it and fail to do high mesh. The pattern of several nickel screens makes it difficult to improve the quality of conventional nickel screens