Printing screen, printing device and printing method

Abstract

The invention relates to a printing screen, a printing device and a printing method. The printing screen comprises an annular main screen formed by connecting a plurality of sub-screens end to end, wherein different sub-screens are positioned in different planes; each sub-screen comprises a screen frame and a print screening wire mesh. By means of the printing screen, the unfolded area of a printing material when being pre-paved is reduced, the uniformity of product printing is improved, and overall offset of the product is controlled. Due to the fact that the main screen is composed of the plurality of sub-screens connecting end to end, the area of the sub-screens is small, and the different sub-screens are positioned in different planes, so that the unfolded area of the printing materialwhen being pre-paved is reduced during printing, and the uniformity of product printing is improved.

Description

technical field [0001] The invention relates to the technical field of screen printing, in particular to a printing screen, a printing device and a printing method. Background technique [0002] At present, when printing, the printing screen is an overall flat design, and the material scraper first "pre-lays" the glass glue on the printing screen to ensure that the glass glue is evenly spread on the effective area of ​​​​the screen, and then uses the return scraper to spread the glass glue on the printing screen. Relative movement on the screen to complete the printing job. Yet adopt above-mentioned screen and printing method to have following problem: [0003] 1. After the material scraper completes the "pre-laying" action of the glass glue, the glass glue spreads on the screen, the contact area between the unfolded glass glue and the air becomes larger, the volatilization rate becomes faster, and its viscosity will change. Product uniformity, target height has a direct i...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a printing screen, a printing device and a printing method to solve the problem that after the material scraper completes the pre-laying action, the expanded printing material has a large contact area with the air, thereby affecting the uniformity of the product.

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