Method for preparing color pearl precoating plate

Abstract

A manufacturing method of a chromatic pearl precoating plate comprises following steps: cutting galvanized plate or cold-rolled coil plate into required size plate, second, carrying out deoiling and cleaning treatment on the surface of the galvanized board or carrying out phosphating or chromic acid inactivating treatment on the surface of the cold-rolled coil plate, third, carrying out drying treatment on the surface of the plate material, fourth, painting single color polyester base paint on the plate material, fifth, painting single color finish on the plate material, sixth, carrying out drying treatment on the surface of the plate material, seventh, painting clear lacquer which contains pearl essence and flashlight powder on the plate material, eighth, carrying out drying treatment on the surface of the plate material again, ninth, sticking a protective film on the surface of the plate material, tenth, carrying out plate bending or cutting package on the plate material. Since single color finish is painted on the plate material in the fifth working procedure of the invention, and the clear lacquer which contains pearl essence and flashlight powder is painted on the plate material in the seventh working procedure, therefore, the invention not only lowers cost, but also has good flashlight and pearl effect on the appearance, and has rich color on the appearance.

Description

technical field [0001] The invention relates to a method for manufacturing a colored pearlescent precoated plate, which belongs to the transformation technology of the manufacturing method for the colored pearlescent precoated plate. Background technique [0002] The manufacture method of the colored pearlescent precoated plate of prior art is: [0003] 1) Cut the galvanized sheet or cold-rolled coil into the required size sheet on the steel uncoiler; [0004] 2) If the galvanized sheet is used, the surface of the galvanized sheet should be degreased and cleaned. If the cold-rolled coil is used, the surface of the cold-rolled coil should be phosphating or chromic acid passivation treatment; [0005] 3) drying the surface of the board; [0006] 4) Coat the polyester primer of a single color on the above board; [0007] 5) Apply an opaque topcoat containing pearlescent and flashing silver on the above-mentioned plates; [0008] 6) drying the paint on the surface of the boa...

AI Technical Summary

Problems solved by technology

[0013] There is following problem in the manufacture method of above-mentioned colored pearlescent pre-coated board: in the 7th process, the paint that is coated with has covered the effect of paint in the 5th process, therefore, the paint in the 5th process adds pearlescent powder and flash silver powder and can cause waste , In addition, the paint used in the seventh process is to add pearl powder and glitter powder to the non-transparent paint, and the filler of the paint itself will cover the display effect of glitter powder and pearl powder. Therefore, it is necessary to increase the amount of glitter powder and pearl powder, so that not only Increased cost, and the appearance effect is not good