Heat transfer printing antistatic paint special for plastics and preparation method

Abstract

The invention discloses a heat transfer printing antistatic paint special for plastics and a preparation method. The method includes: a. preparing a graphene oxide dispersion liquid; b. preparing carboxylated graphene oxide; and c. adding carboxyl-terminated PET resin and carboxylated graphene oxide into an organic solvent, carrying out cross-linking reaction, and then reducing graphene oxide to obtain the antistatic paint special for plastics. During use, the paint is applied to uniform scrape coating and drying curing, the formed graphene-containing multi-network structure has an effective conductive path, can significantly improve the antistatic performance of a PET base layer, also no antistatic finish paint layer or brushing process is needed for modification, the antistatic effect ismore durable and long-acting, and the heat transfer printing quality can be effectively improved.

Description

technical field [0001] The invention relates to the field of printing materials, in particular to the preparation of a thermal transfer film, in particular to a special coating for thermal transfer antistatic plastics and a preparation method thereof. Background technique [0002] Thermal transfer printing technology is a special printing method that uses gravure printing, first prints graphics and text on the carrier film, and then transfers the graphics and text to the substrate through a thermal transfer machine, so that the product has a decorative effect. The specific implementation of thermal transfer technology includes two parts: the production of thermal transfer film and thermal transfer processing. Thermal transfer film consists of five parts, including: base film, release layer, protective layer, ink layer, adhesive layer. The coatings are closely related and affect each other. [0003] The base film is also called the carrier film. During the thermal transfer ...

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Problems solved by technology

[0008] It can be seen that in the actual application of thermal transfer printing in the prior art, the existence of static electricity will lead to frequent failures in the thermal transfer process, such as: spots, patterns, roughness appearing on the full plate, printing color drops, reverse sticky etc.

Although the carbon ribbon is used to eliminate static electricity during the thermal transfer process to reduce the absorption of paper scraps and dust and prolong the life of the thermal print head, but its cost is relatively high

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