A kind of coloring process of PET transfer film and the preparation method of PET transfer film

Abstract

The invention relates to the technical field of transfer film, in particular to a PET transfer film coloring process and a PET transfer film preparation method. The PET transfer film coloring process includes the following steps: Step 1, adding matte powder into the resin , to obtain a first-level matte paint after stirring evenly; Step 2, grind the first-level matte paint until the first-level matte paint is transformed from translucent to milky white to obtain a second-level matte paint; Step 3, to the second-level matte paint Add organic solvent and pigment powder into the light paint, after stirring evenly, obtain the mixed coloring paint; step 4, apply the mixed coloring paint on the PET base film, and then dry it, that is, form a green color on the surface of the PET base film. Layer the color layer with a matte finish. The coloring process of the PET transfer film can reduce production procedures and improve production efficiency; at the same time, the scrap rate of the transfer film is reduced, the production cost is reduced, and the produced product has good matte degree, thick color and good color accuracy.

Description

technical field [0001] The invention relates to the technical field of transfer films, in particular to a coloring process for PET transfer films and a preparation method for PET transfer films. Background technique [0002] PET transfer film is widely used in packaging paper, which is mostly used in high-end packaging boxes, high-end cigarette packaging boxes, film covering, pharmaceutical and cosmetic packaging and other occasions. The PET transfer film is made by carrying out coloring process, vacuum aluminum plating and back-coating hot melt on the PET base film. The application process of PET transfer film is to transfer the aluminum layer and color to paper, leather, textiles and other substrates by heating and pressing, thereby changing the appearance and quality of the substrate and improving the product grade. The color of the product Diversified, there are gold, silver, red, blue, green, purple, black, brown and other colors. [0003] In order to make the appeara...

AI Technical Summary

Problems solved by technology

The production process in which matteness and color are achieved through the pre-coloring process and the post-coloring process has the following disadvantages: (1) The production process of the two coloring processes will increase the probability of scrapping the transfer film. If the front coloring or post-coloring If there is a major defect in any of the processes (for example, the matteness is not enough, or the color accuracy is not good enough), it will lead to the scrapping of the transfer film; It will lead to low production efficiency and increase production cost. On the other hand, it will easily lead to unstable product quality; (3) The production process that the matteness and color are realized through the pre-coloring process and the post-coloring process respectively, the products produced The appearance color is not strong enough, and the high-end feeling is not enough