Preparation method of holographic transfer film for replacing holographic gold stamping

Abstract

The invention relates to a preparation method of a holographic transfer film for replacing holographic gold stamping, which comprises the following steps that: a gravure coating machine is adopted, transfer paint with integrated parting and imaging functions is coated on a polyethylene terephthalate (PET) film, and baking and curing are carried out; the mold pressing is carried out on a mold pressing machine, and holographic patterns are copied onto imaging coatings; the vacuum aluminum plating is carried out; a printing aluminum washing protection ink version roller is designed according to gold stamping pattern requirements, and protection ink is printed; the aluminum washing is carried out in an aluminum washing machine, and aluminum layers in positions without printing the protection ink are washed away and baked; extinction oil is coated on the coating machine, and the holographic patterns in hollow positions, i.e. the positions in which the aluminum layers are washed away are removed; the transfer film and paper are compounded on a compounding machine; the PET film is peeled off on a peeling machine and is recovered and utilized, so the transfer paper with the holographic patterns is made; and printing products with holographic gold stamping patterns are made through subsequent offset printing or intaglio printing and the like. The method can completely replace the holographic gold stamping process, the production efficiency is high, and the method is suitable for the large-scale production operation.

Description

technical field [0001] The invention specifically relates to a preparation method of a holographic transfer film that replaces holographic bronzing, and belongs to the technical field of packaging and anti-counterfeiting. Background technique [0002] With the improvement of the national economy and the development of the printing and packaging industry, people's requirements for product packaging are not only high-end, exquisite, environmentally friendly, and full of personalization, but also hope that the authenticity of the product can be identified through the product packaging. Therefore, the holographic bronzing technology with anti-counterfeiting function is more and more widely used in the post-press processing of packaging products, and is favored by consumers because of its luxurious and exquisite appearance. It is widely used in high-end packaging such as cigarette labels, medicines, cosmetics, and wine. [0003] However, as far as the current hot stamping proces...

AI Technical Summary

Problems solved by technology

[0003] However, as far as the current hot stamping process is concerned, regardless of the flat pressing method, or the round pressing method, or the round pressing method, it must be cut into a single sheet, which has a long production cycle and low efficiency.

For products with large batches, although gravure printing can effectively solve the problems of poor stability and low production efficiency, if hot stamping is used later, it will seriously restrict production efficiency, increase production costs, and poor stability

Due to the high temperature and pressure in the bronzing process, it will also cause some damage to the holographic anti-counterfeiting pattern, which not only reduces the luster of the bronzing pattern of the product, but also greatly weakens the anti-counterfeiting strength of the product