A method for surface transfer printing of packaging materials

Abstract

A method for processing surface transfer printing of packaging materials, the specific steps are as follows: S1, preparing transfer glue; S2, preparing PET film and packaging material paper containing aluminum-plated layer or tin-plated layer; S3, using transfer glue to bond PET film and packaging material Paper; S4. Send the bonded PET film and packaging material paper into the electron accelerator irradiation chamber through the under-beam transmission device, so that the transfer glue can be cured by electron beam radiation to realize the transfer of the aluminum-coated layer or tin-plated layer on the PET film. Printing on the packaging material paper; S5, tearing off the PET film to obtain the transferred packaging material. The invention is based on the principle of electron beam curing, uses 100% solid raw materials, and does not generate any VOC during the curing reaction, realizes zero VOC emissions, and does not contain migratable small molecules in the formula, achieving the purpose of food safety, no matter in Both efficiency and energy consumption are far superior to water-based thermal curing.

Description

technical field [0001] The invention relates to the technical field of transfer printing of packaging materials such as cigarette packs and food, in particular to a method for processing the surface transfer printing of packaging materials by electron beam irradiation. Background technique [0002] Printing aluminum or tin on cigarette packs or food packaging materials is used to beautify the packaging, in which glue plays an important role. The current method is to coat a layer of aluminum or tin on the film material, and then transfer it to the paper through glue. Since paper is opaque, metal aluminum or tin is also opaque, which indicates that the purpose cannot be achieved by UV curing. The way of heating dries the water to achieve the purpose of transfer printing. [0003] The disadvantages of the traditional water-based thermal curing method are as follows: 1) The water-based thermal curing method consumes a lot of energy, and because of the limitation of the drying ...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the traditional water-based thermal curing method are as follows: 1) The water-based thermal curing method consumes a lot of energy, and because of the limitation of the drying speed, the production efficiency will also be affected; 2) The glue of the water-based formula will contain some film-forming Although additives or co-solvents can be completely volatilized in the end, it is difficult to completely avoid the emission of volatile organic compounds, which has caused certain damage to the production environment

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