Protective film curing forming method

Abstract

The invention relates to the technical field of packaging protection material processing and manufacturing, in particular to a protective film curing forming method, and relates to multi-layer protective film coating compound equipment which comprises a rack, a double-face gluing mechanism, a guide roller set assembly, a gluing pressing mechanism and a single-face gluing mechanism. The compound equipment can complete compound molding processing of the silica gel PET protective film with a multilayer structure, improves the compactness and the smoothness of gluing of the double PET film layers, avoids generation of fine wrinkles of the protective film, and improves the compound molding quality of the protective film.

Description

technical field [0001] The invention relates to the technical field of packaging protection material processing and manufacturing, and specifically proposes a method for curing and forming a protective film. Background technique [0002] The protective film described in the present invention specifically refers to a silicone PET protective film, which specifically includes two layers of PET film layers, a cured adhesive layer for bonding the two layers of PET film layers, and an adhesive layer bonded to one of the PET film layers. the silicone layer, Figure 10 The schematic diagram of the layer structure of the protective film is shown. The protective film has the advantages of high flexibility, good wear resistance, and good tear resistance. It is widely used in the surface protection of products to avoid product surface pollution and scratches. [0003] The above-mentioned protective film has a multi-layer structure, and in the actual production and processing preparation...

AI Technical Summary

Problems solved by technology

[0004] 1) The two layers of PET film need to be bonded through a cured adhesive layer. In the existing composite processing process, any PET film is glued and then glued. The disadvantage of this method is that in the process of bonding , the glue on the glued surface of one of the cured glue-coated PET films will directly contact the other uncoated PET film, which is prone to dry pulling and fine wrinkles, resulting in a change in the smoothness of the protective film composite Difference

[0005] 2) When extruding and gluing two-layer PET films, the method of horizontal continuous extrusion is mostly used. The disadvantage of this method is that although the PET film is stretched and pulled forward during the conveying process, it cannot During the process, the glue liquid that is extruded backwards will be concentrated under the action of gravity to cause slight deformation of the PET film on the lower layer, so that it is easy to produce fine wrinkles in the subsequent extrusion process, which in turn will affect the quality of the glued compound.

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