Reusable UV transfer film and production method thereof

Abstract

The invention discloses a reusable UV transfer film. The reusable UV transfer film sequentially comprises a PET base layer, an UV imaging information layer, an isolation layer, an aluminum layer and a back adhesive layer from top to bottom, wherein the UV imaging information layer adopts UV intaglio printing. Meanwhile, the invention also discloses a production method of the reusable UV transfer film. The production method comprises the following steps of S1, carrying out corona treatment on the PET base layer; S2, adopting intaglio printing, coating the PET base layer with UV printing ink, and then carrying out ultraviolet irradiation to cure the UV printing ink to obtain the UV imaging information layer; S3, spraying the isolation layer on an information face of the UV imaging information layer; S4, plating aluminum on the surface of the isolating layer to form the aluminum layer; and S5, coating the positon below the aluminum layer with the back adhesive layer. According to the reusable UV transfer film, a concave-convex microstructure on the UV imaging information layer can form a special holographic anti-counterfeiting pattern on the aluminum layer, the aluminum layer is directly adhered to paper, and the UV imaging information layer is reserved on the PET base layer so as to achieve the purpose of repeated use.

Description

technical field [0001] The invention belongs to the field of transfer films, in particular to a reusable UV transfer film and a production method thereof. Background technique [0002] UV ink, also known as shadowless ink or ultraviolet curable ink, is a UV visible light curable modified acrylic structural ink, and is a type of forming agent that must be cured by ultraviolet light. Since the advent of UV ink in the 1960s, it has achieved rapid development and is widely used in various fields such as medical and health care, aviation, electronics, printing, and optical instruments. The principle of UV ink curing is that the photoinitiator (or photosensitizer) in the UV curing material absorbs ultraviolet light under the irradiation of ultraviolet light to generate active free radicals or cations, triggering chemical reactions of monomer polymerization, crosslinking and grafting, so that the adhesion The agent changes from liquid to solid within seconds. It has high hardness...

AI Technical Summary

Problems solved by technology

Chinese patent CN108407484A discloses a UV transfer film and its production process and application. The UV transfer film is laminated by a PET film layer, a release base film layer, a UV adhesive layer, a top coat and an aluminized layer, and the release base film layer, UV adhesive layer and top coat are composed of raw materials with a specific weight percentage respectively, but the UV adhesive layer of the transfer film is firmly bonded to the aluminum layer, so when the PET film layer is peeled off, the UV adhesive layer is still in contact with the aluminum plating layer. The aluminum layer sticks together, so that the UV adhesive layer cannot be reused, and the UV adhesive layer needs to be prepared again when it is used again, which increases the production cost

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