Classification and application of common printed pearlescent materials
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As a high-brightness material that enhances the added value of products, pearlescent materials are currently used in the printing industry. They can improve the color of the product, and can also change the color rendering effect. It is a new material for packaging printing and color printing. So what are the pearlescent materials? We analyze for you.
Pearlescent materials are mainly divided into the following categories:
1. Pearl powder
Pearl powder is divided into ordinary powder pearlescent material and pearlescent ball dispersed with soft resin. The colors are mainly silver, bright gold, metallic, rainbow interference color and chameleon series. Your sister mall finds that pearl powder is used according to the direction of use. The effect is different in particle size. The smaller the particle size, the stronger the hiding power of pearl powder. The larger the particle size, the stronger the gloss of pearl powder. In the printing industry, the particle size has strict requirements, and the small particle size can be used. Offset printing, larger particle size can be used for flexo and gravure, and has a better effect.
2. Pearlescent pulp
Pearlescent paste is a high viscosity viscosity pearlescent material, which is suitable for mixing with offset inks. It has excellent hiding power and good gloss and is suitable for offset printing.
In terms of the use of pearlescent materials, there are the following methods:
1. In the offset printing, the pearlescent powder with smaller particle size is mixed with the printing ink and printed in a certain ratio; or the water-based and UV glazing system is used to add a certain proportion of pearl powder to the glazing glazing for glazing. Coating, the effect is better; the pearlescent pulp and the offset ink are mixed in a certain ratio for printing, which can greatly improve the brightness of the ink and the effect of Zhuguang;
2. Gravure and flexographic printing are carried out by mixing pearl powder and ink corresponding to the printing plate;
3. The pearlescent effect is related to the bearing capacity and mixing ratio of the ink to the pearl.