A kind of die-cutting processing method of liquid glue printing to protective film

Abstract

The invention discloses a die cutting processing method for printing liquid glues onto a protective film. The method comprises the following steps of printing liquid glues onto the silicone rubber protective film, wherein the liquid glues are cured to form a glue layer; covering the glue layer with a release film to obtain a compound film layer; sequentially adhering a first protective film and asecond protective film onto the bottom of the compound film layer; performing first punching to punch a central hole in the compound film layer, and then pulling off the second protective layer to remove the scraps of the central hole; removing the release film, and covering the glue layer with aluminum foils; performing second punching to cut off the glue layer and the silicone rubber protectivefilm, and removing the scraps produced during second punching to obtain a finished product on the first protective film. The die cutting processing method for printing the liquid glues onto the protective film saves dimensional coordination of different types of equipment, improves the matching precision of the glue layer and release paper, achieve simplicity and improves the yield and the production efficiency.

Description

technical field [0001] The invention relates to the technical field of die-cutting processing, in particular to a die-cutting processing method for printing liquid glue onto a protective film. Background technique [0002] In the field of traditional die-cutting processing, the product that prints liquid glue onto the protective film consists of three layers of materials, such as figure 1 Shown is the structural diagram of the product, which includes PET release paper, liquid glue and aluminum foil from top to bottom. The liquid glue type can be 3M SP 7533. [0003] Such as figure 2 Shown is the schematic diagram of the traditional processing method. The traditional production method is as follows: Step 1, such as figure 2 As shown in (a), first prepare the aluminum foil on the surface of the weak mucous membrane, cut out the positioning mark on the aluminum foil with a die-cutting device, and print the glue on the surface of the aluminum foil according to the position...

AI Technical Summary

Problems solved by technology

[0004] This method involves part of the size to be controlled by the two processes of printing and die-cutting. Because the glue layer is printed in step 2 and the paper is cut and peeled off in step 3, the two processes do not use the same type of equipment, so the dimensional tolerance specified in the drawing cannot be guaranteed. ;In addition, the die-cutting and printing needs to be adjusted, which wastes a lot of materials; in addition, the glue cannot be printed on the release film, and there is no way to realize the die-cutting in reverse order of the material preparation layer, so the release paper needs to be attached to the product separately, and the size is also very small. Difficult to control

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