Energy-saving and environment-friendly roller coating paint for printing plate and application method of energy-saving and environment-friendly roller coating paint

Abstract

The invention provides an energy-saving and environment-friendly roller coating paint for a printing plate and an application method of the energy-saving and environment-friendly roller coating paint. The paint comprises a priming paint and a finish paint. The paint is high in adhesive force, good in ductility, heat-resistant and long in service life; the processing technology for printing plate products is changed; the processing procedures are simplified; roller coating treatment is intensively finished on a panel of the printing plate; and a painting workshop does not need to be independently arranged.

Description

Technical field [0001] The invention relates to an energy-saving and environment-friendly roller coating paint for printing plates and a use method thereof, and is mainly suitable for the coating of printing plates such as ceiling printing plates and metal embossed decorative plates. Background technique [0002] The coating process of the existing printing plate mainly adopts spraying technology: the printing plate slab is first processed into the shape of ceiling printing plate and metal embossed decorative plate, and then sent to the spraying workshop for spraying, and the formed ceiling printing plate and metal embossing are obtained. Decorative board products. [0003] Among them, spraying is a coating method in which spray guns or dish atomizers are used to disperse into uniform and fine droplets by means of pressure or centrifugal force and apply to the surface of the object to be coated. [0004] The main problem in spraying is the highly dispersed paint mist and volatilized...

AI Technical Summary

Problems solved by technology

[0006] 1) The amount of paint is large, but the utilization rate is low, resulting in waste

During the spraying process, because the paint is not resistant to high temperature, the paint will change color if the temperature is too high, so the low temperature spraying is used, resulting in a small amount of spraying each time, and it needs to be sprayed 3 to 5 times to complete the spraying of the formed printed plate products, causing damage to the printed board products. waste of paint;

[0007] 2) There are volatile materials in the paint used in the existing spraying process. During the spraying process, only 30-40% of the paint is attached to the formed printed board products, and the rest diffuses into the air or falls on the ground, causing serious waste , pollute the environment, and the cost of spraying is high;

[0009] 4) The process of spraying first before processing cannot be realized

If it is processed after spraying, it will lead to insufficient adhesion and ductility of the paint, and it will fall off during processing; and the bending degree (T-bend performance) of the printed plate sprayed with paint is generally 2T or above, and it requires 0T ( That is, after the printed board is bent at 180°, it is completely seamless and close together, and the paint does not burst and fall off) or 1T (that is, after the printed board is bent twice at 180°, the outermost paint surface does not fall off and does not burst). The paint used in the spraying process cannot meet the requirements;

[0010] 5) For the existing spraying process, it is sprayed on the printed printing plate that has been processed. For the area with complex structure (such as corners, depressions, etc.) Spraying in areas with complex structures can be completed, resulting in uneven distribution of paint on the surface of the printing plate, which affects subsequent use;

[0011] 6) With the spraying process, each printing plate product manufacturer needs to set up a special spraying workshop, and the environmental protection treatment pressure is high;

[0012] 7) Most of the paints used in the existing spraying process are polyester paints or fluorocarbon paints. These two paints have poor aging resistance. After a long period of continuous sunshine, the surface of the printed board will appear yellowing and discoloration;

[0013] 8) The existing polyester paint or fluorocarbon paint has poor high temperature resistance. When spot welding is used to continue processing or the temperature reaches 230°C, the paint on the surface of the printed board will change color and crack

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