Alumite thermoprint gum material coating liquid made of propene polymer (PP) material

Abstract

The invention relates to the technical field of the industrial packaging film, in particular to alumite thermoprint gum material coating liquid made of propene polymer (PP) material. The alumite thermoprint gum material coating liquid disclosed by the invention comprises olefin resin, phenolic resin, ethylene vinyl acetate (EVA) resin, methylbenzene and ethyl ester at a certain ratio. Polyolefin contained in the gum layer formed by the produced coating liquid material has certain wettability on the PP material, the adhesive force is enhanced, the alumite thermoprint layer can be firmly adhered on the PP material by the gum layer and is free from the falling phenomenon, the thermoprint effect is improved, the quality is guaranteed, and the rejection rate is lowered.

Description

Technical field: [0001] The invention relates to the technical field of industrial packaging films, in particular to a coating liquid for anodized aluminum hot stamping adhesive material made of PP. Background technique: [0002] With the improvement of people's living standards and increasing consumption, under the current increasingly fierce competition, the requirements for product grades to meet consumer needs are getting higher and higher, so the packaging of corresponding products is also becoming more and more high-end. Printing replaces traditional printing and screen printing and is widely used in high-end product packaging, such as tobacco, wine, cosmetics, etc. For wine or cosmetic packaging, anodized aluminum hot stamping is generally based on PP material, and generally needs to be printed on PP Hot stamping is carried out after coating the adhesive layer on the material. The adhesive layer is the connecting layer connecting the PP material and the hot stamping l...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards and increasing consumption, under the current increasingly fierce competition, the requirements for product grades to meet consumer needs are getting higher and higher, so the packaging of corresponding products is also becoming more and more high-end. Printing replaces traditional printing and screen printing and is widely used in high-end product packaging, such as tobacco, wine, cosmetics, etc. For wine or cosmetic packaging, anodized aluminum hot stamping is generally based on PP material, and generally needs to be printed on PP Hot stamping is carried out after coating the adhesive layer on the material. The adhesive layer is the connecting layer connecting the PP material and the hot stamping layer. However, since the PP material is mainly polypropylene resin, it has high hardness and low surface tension. The layer material coating liquid uses thermoplastic acrylic as the main adhesive layer system, which has poor surface wettability and poor adhesion with the PP material. Therefore, it is difficult for the existing adhesive layer to firmly attach the anodized aluminum hot stamping layer to the PP material. On the surface, the hot stamping layer is not firmly adhered, resulting in shedding, which affects the hot stamping effect and quality assurance, and the scrap rate is high

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