Process for preparing high-brightness black and bright mirror surface silver paste by using uv coating

Abstract

The invention relates to a process for preparing high-brightness black and bright mirror surface silver paste by using a uv coating. The process is characterized by comprising the following steps: (1)coating a PET film with specific uv resin; (2) conducting vacuum aluminizing, wherein the vacuum degree needs to reach the minus 4 power of 10, and the thickness of an aluminum layer needs to be controlled to be about 100 nanometers; (3) repeatedly smearing and aluminizing 25 layers; (4) washing off the aluminized layer of the plated PET film through a film washing machine; (5) separating and extracting the aluminum sheet at a high speed by using a water-cooling separator; (6) crushing the extracted aluminum sheet by using an air cooling crusher; (7) filtering out impurities through a 420-mesh screen; (8) carrying out high-speed shearing for 6 hours through a water-cooling high-speed shearing machine; (9) separating and extracting an aluminum sheet finished product by a water-cooling separator; and (10) blending the aluminum sheet and a solvent according to a certain ratio to obtain a finished product. The method has the beneficial effects that multi-layer coating can be achieved, thecost is reduced, the yield is increased, and the aluminum layer shows the black gray metal texture by controlling the thickness of the aluminum layer to be about 100 nanometers.

Description

Technical field[0001]The invention relates to a paint, in particular to a process for preparing a high-brightness black-bright mirror silver paste with a UV coating.Background technique[0002]Mirror silver is a kind of high-grade metallic pigment in the form of a slurry made of aluminum flake particles with a thickness of 20-40nm made by PVD method and dispersed in an organic solvent. After the mirror ink prepared by it is printed on the printing surface, The nano aluminum sheets are arranged parallel to each other to form a light reflection effect like a silver mirror, hence the name "mirror silver".[0003]Mirror silver is silver-white with a single color. There is an urgent need for other colors of mirror silver in the market. At present, there is a lack of mirror pigments that can maintain the mirror effect and metallic luster of mirror silver and have high-brightness black and bright colors.Summary of the invention[0004]Aiming at the deficiencies in the prior art, the present inve...

AI Technical Summary

Problems solved by technology

[0003] Mirror silver is silvery white with a single color, and there has been an urgent need for other colors of mirror silver on the market; at present, there is a lack of mirror pigments that can maintain the mirror effect and metallic luster of mirror silver and have high brightness and black and bright colors on the market