Correct selection of glass screen printing (1)

Today, I will introduce you how to choose the right screen printing mesh for glass. Materials and equipment directly affect the screen printing effect. In the glass screen printing, we should reasonably select the correct screen printing mesh accordin

Today, I will introduce you how to choose the right screen printing mesh for glass.

Materials and equipment directly affect the screen printing effect. In the glass screen printing, we should reasonably select the correct screen printing mesh according to the products with different technical requirements. On the one hand, we can ensure that the quality of the products meets the requirements of users, and on the other hand, it is beneficial. The production cost is controlled, so the correct selection of different screen printing mesh according to different products in the glass screen printing is very important for the whole production.

Correct selection of glass screen printing (1)

The correct choice of different screen printing mesh, on the one hand we must be familiar with the technical requirements of different products, on the other hand must have a detailed understanding of the technical parameters of the screen printing mesh and their impact on the screen printing effect, by understanding the structure and physical characteristics of the screen printing mesh And its performance attributes to make the right choice.

Common types of glass screen printing products are: car side window and windshield decorative screen printing, building curtain wall glass label and stencil screen printing, home appliance furniture glass decorative panel screen printing. The state of the art mainly includes solid color block files, essays and lines, and color tone files. In order to achieve a reasonable screen printing effect according to different process requirements, we must pay attention to the following points of the screen.

Screen printing mesh type selection For glass printing, the printing surface should be flat and uniform, mainly using polyester mesh. Polyester screen printing mesh can be used for printing precision, printing resistance, acid and alkali resistance and organic solvent resistance. Meet the requirements of glass printing. In terms of the color of the screen printing mesh, there are currently two main types on the market, one is a white screen printing mesh and the other is a yellow screen printing mesh. The white polyester screen printing mesh reflects and scatters light during exposure, and the ultraviolet light is diffused to the edge of the image to expose the photoresist film. For fine line and tone printing on glass, since the surface of the glass is a non-absorbent surface and the material is transparent, it is preferable to use a white screen printing mesh for plate making. However, defects such as the jagged edges of the lines after the white screen printing mesh and the poor resolution of the tone images are more obvious. The yellow screen can prevent the light from scattering when exposed, which is beneficial to maintain the sharpness of the edge of the image. Therefore, the yellow screen printing mesh can be used for the printing of the solid color block pattern and the general graphic lines, for the fine lines requiring high precision, such as a car. The rear windshield heating line printing, the home appliance panel glass logo printing, the decorative glass tone pattern printing, etc., we recommend using a yellow screen printing mesh for plate making.

When making tone printing on glass, the two most critical criteria for the screen are the screen printing mesh size and the wire diameter of the screen. The first thing to ensure is that the smallest element of the tone pattern can be printed. For the printing of gradation images of glass products, the screening method of images generally adopts amplitude modulation and netting, and the image layers are represented by different sizes of dots. The brighter images of images call smaller dots to express, and darkly call larger dots.

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