Printing method and device of 3D curved glass pattern

Abstract

The invention discloses a printing method and device of a 3D curved glass pattern. The method comprises the following steps: washing and drying 3D curved glass by an overall load type washing machine; spraying photosensitive printing ink on the inner side of the dried 3D curved glass by a 3D curved glass spray coater; moving a first tray in an intelligent stack-up precuring furnace by a first manipulator, and precuring the photosensitive printing ink by the intelligent stack-up precuring furnace; loading the treated 3D curved glass in a second tray, additionally mounting a masking plate, and transferring the photosensitive printing ink onto the treated 3D curved glass by a 3D curved glass exposure machine; unloading the masking plate from the second tray, and utilizing an optical pattern developing machine to perform development washing for the 3D curved glass transferred with the photosensitive printing ink; and curing the photosensitive printing ink transferred onto the 3D curved glass by an intelligent stack-up curing furnace. Through the adoption of the method disclosed by the invention, the printing of the 3D curved glass pattern is realized, the yield rate in production is guaranteed, and besides, the method has the advantages of low process cost and high production capacity.

Description

technical field [0001] The invention relates to the field of 3D curved surface graphic printing, in particular to a printing method and device for 3D curved glass patterns. Background technique [0002] Applied to the glass of the front cover and back cover of the mobile phone, 2D\2.5D can use the traditional silk screen printing method to complete the manufacturing process of its decorative pattern. However, the 3D double-sided curve and four-sided curve can only be realized through the following processes at present: [0003] 1. OCA optical glue composite printing technology: The characteristic of this process is to first put the printing process on any material compatible with OCA optical glue materials and attached structural parts, use flat printing technology to complete in advance, and then print according to product technical requirements. The graphics and text of the glass are composited on the transparent structure of the 3D curved surface through OCA optical glue,...

AI Technical Summary

Problems solved by technology

[0003] 1. OCA optical glue composite printing technology: The characteristic of this process is to first put the printing process on any material compatible with OCA optical glue materials and attached structural parts, use flat printing technology to complete in advance, and then print according to product technical requirements. The graphics and text of the glass are composited on the transparent structure of the 3D curved surface through OCA optical glue, but when the glass arc angle is large, there are process defects (insoluble bubbles appear), the process cost is high, and the yield rate is low

[0004] 2. Ion coloring process technology: Just like ion exchange can enhance the surface quality of glass, for glass materials, it can also be soaked in a non-ferrous metal ion salt bath, and the non-ferrous metal ions replace other ions on the shallow surface of the glass. , so that the glass shows the corresponding color, but the color produced by ion coloring technology is relatively light, and the process cost is relatively high. Currently, in the mobile phone industry, only some luxury brands are using it.

Pad printing printing first copies the manuscript to be printed on the pad printing template to form an ink storage tank, and after scraping and coating the ink of the required color on the ink storage tank, the pad printing template is transferred to the pad through the pad printing head with surface adsorption function The ink in the ink storage tank is absorbed and transferred to the surface of the 3D curved glass cover, and the fine graphic content required by the final product can be obtained, but the printing accuracy is difficult to control, the process cost is high, and the yield rate is low. question

[0006] 4. Laser engraving ink technology: For some special ink layers, or products with significantly different composition requirements, cover glass manufacturers also introduce non-contact laser engraving ink technology when producing 3D curved cover plates. Complete the surface graphics and text printing process of the cover plate, but the process cost is high and the production capacity is low

Images