Pearlescent materials are mainly divided into the following categories:
1. Pearl powder
Pearlescent powder is divided into ordinary powdered pearlescent material and pearlescent balls dispersed with soft resin. The colors are mainly silver, bright gold, metallic, rainbow interference color and chameleon series. Among them, the pearlescent powder is different according to the direction and effect of use The distinction of 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; the particle size in the printing industry has stricter requirements, small particle size can be used for offset printing, Large particle size can be used for flexo and gravure printing, and has better results.
2. Pearlescent pulp
Pearlescent paste is a kind of pearlescent material with high viscosity and viscosity. It is more suitable for mixing with offset printing ink. It has excellent hiding power and good gloss. It is suitable for offset printing.
In terms of the use of pearlescent materials, there are the following methods:
1. In the offset printing, choose pearl powder with a smaller particle size and printing ink mixed at a certain ratio for printing; or use a water-based, UV glazing system to add a certain percentage of pearl powder to the glazing oil for glazing. Coated, the effect is better; mixed printing of pearlescent paste and offset printing ink in a certain proportion can greatly improve the brightness of the ink and the effect of Zhu Guang;
2. For gravure and flexo printing, use pearlescent powder with the particle size corresponding to the printing plate and ink to mix and use;
3. The pearlescent effect is related to the bearing capacity and mixing ratio of the ink to pearlescent.
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