Coating process for pearlescent paper

Abstract

The invention discloses a coating process for pearlescent paper. The coating process comprises the following steps: the step of preparing pearlescent printing ink: firstly, pearl powder of 500-1000 grams and water-based polishing oil of 15-20 grams are mixed, and then the mixed pearlescent printing ink is enabled to be in a still standing state, and the still standing time is 12 hours; the step of coating: the pearlescent printing ink is transferred onto paper by using a coating device; and the step of drying and curing: the transferred paper is conveyed into a drying unit for drying and curing, and three ultraviolet lamps and one infrared lamps are turned on during drying. According to the coating process for the pearlescent paper, the mixed pearlescent printing ink has high brightness and high adhesive force, so that the pearl ink bonding film surface of a printed product can be enabled to be smooth and not to wrinkle; the process stability is high; during use, pearls cannot fall off; the subsequent adaptability is excellent; requirements of consumers and production are met better; and furthermore, in the manufacturing and use processes of the pearlescent paper, the environment is not polluted, no harm is caused to the human health, and the national requirements of environmental protection are met.

Description

technical field [0001] The invention relates to a coating process of pearl paper. Background technique [0002] Due to the continuous development of the packaging industry, packaging paper with pearl sequins on the surface has been introduced in the market to meet the packaging of advanced cosmetics. This special wrapping paper is lithographically printed in four colors and has a special pearl effect in appearance. At present, this special pearl effect is mostly realized by the screen printing method. It is made of special pearl raw materials into printing ink, and then printed on the substrate by screen printing. This printing method expresses pearl printing. The effect is single, the layers are not clear enough, and it cannot reflect the gradation and visual sparkle on the surface of the printed product, so it cannot meet the effect of four-color gradation on the surface of the pearl in the future packaging. SUMMARY OF THE INVENTION [0003] The purpose of the present ...

AI Technical Summary

Problems solved by technology

At present, this kind of special pearl effect is mostly achieved by screen printing. It uses special pearl raw materials to prepare printing ink, and then prints it on the substrate by screen printing. This printing method expresses pearl printing. The effect is single, the layers are not clear enough, and it cannot reflect the gradient and visual sparkle on the surface of the printed product, so it cannot meet the four-color gradient effect on the pearl surface of future packaging products.