170TDSN printing rotary screen, preparation method and application thereof

Abstract

The invention provides a 170TDSN printing rotary screen. The number of meshes is 170, and the open porosity is 18%-28%; and the thickness is 100-115[mu]m. The invention further provides a preparation method and the application of the printing rotary screen. According to the 170-mesh printing rotary screen prepared with the preparation method, during printing of fine lines and halftone fine patterns, the printed finest line is 149 [mu]m, and the printing is seamless; compared with a common 155M printing rotary screen for the fine line and halftone and uniform block patterns, the 170TDSN printing rotary screen has the advantages that paste can be transferred onto the surface of cloth by adopting lower scraper pressure, and the deformation of the printing rotary screen is avoided; and finally the features of accurate alignment, uniform and fine color and good halftone transition effect are achieved. The scraper pressure can be reduced by 50% for the same paste viscosity; when the 170TDSN printing rotary screen prepared with the preparation method is applied to printing of uniform block surfaces, the printed color is more uniform, and no unfinished phenomenon exists.

Description

technical field [0001] The invention relates to a 170TDSN printing rotary screen, a preparation method and an application thereof, and belongs to the technical field of textile printing. Background technique [0002] In order to improve market competitiveness, printing and dyeing enterprises need to continuously improve printing grades and production efficiency, so the proportion of fine lines, halftone printing and uniform block printing is getting higher and higher. [0003] As we all know, flat screen printing is suitable for printing high-precision patterns. The printed patterns have a strong three-dimensional effect, clear pattern outlines, rich colors and full layers. However, when printing fine patterns such as dot lines and halftones, considering the production cost and ease of operation, flat screen printing generally adopts a high-mesh screen with a mesh size of 140-160, and its thickness is generally 70 µm. It is 110~118µm, the wire diameter width is 53µm on aver...

AI Technical Summary

Problems solved by technology

Flat screen printing is a screen frame type, and the printing speed is generally 10~30 m / min, so the production efficiency is low, and printing is prone to printing on textiles, which affects the overall printing level

[0004] Digital printing can carry out intelligent color matching. By controlling the ink droplet size of the inkjet printing head, it is easy to control the printing line and dot fineness. , its stable production maximum printing speed is 40m / min, the production efficiency is low, and the consumption of equipment and ink consumables is large, and the maintenance cost of the inkjet head is high. Therefore, for the printing of fine lines, halftones and uniform blocks, The production cost of digital printing is too high

[0005] At present, the rotary screen printing method is used to print fine lines, halftones and uniform block patterns using a 155 printing rotary screen. The thinnest line printed by it is 164µm, but the opening rate is low, about 10%, and the color paste The fluidity through the mesh is poor. When printing halftones, some dots cannot achieve the required penetration effect, which may easily cause the loss of dots and poor color. When printing a uniform block surface, it is easy to have whitening phenomenon, so it is necessary to use a higher Large scraper pressure can achieve the desired penetration effect, but at a high printing speed, the high scraper pressure is likely to cause the deformation of the printing screen during printing, and the problem of inaccurate printing will affect the printing effect

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