A kind of matte finish paint and its preparation method and application method

Abstract

The invention provides matt finish paint, a preparation method for the same and a using method of the matt finish paint. The using method comprises the following steps of mixing the matt finish paint, a curing agent and a diluting agent according to a mass ratio of 1:0.7:(0.6-0.7), standing a mixture for 10 to 20 minutes, and spray-coating the mixture, wherein the curing agent contains a toluene diisocynate tripolymer; and the matt finish paint is prepared from an alkyd resin, saturated polyester, nitrocotton liquid, an antifoaming agent, a dispersing agent, a leveling agent, a hand-feel auxiliary and a solvent. Compared with the conventional matt finish paint, the matt finish paint has the advantages that the alkyd resin, the saturated polyester and nitrocotton are used as major film forming substances, and the limited compatibility of the toluene diisocynate tripolymer and the nitrocotton is utilized, so that a paint film has high transparency, and the aim of matting can be fulfilled without adding matting powder; and in addition, the addition of the nitrocotton liquid and the toluene diisocynate tripolymer can be regulated, so that the luster of the paint film can be controlled to be 4 to 8 light-minutes, and the paint film is endowed with higher repainting performance.

Description

Technical field [0001] The invention belongs to the technical field of painting, and particularly relates to a matte finish paint and a preparation method and a use method thereof. Background technique [0002] The top coat, also known as the final coat, is the last layer of paint applied in the multi-layer coating. It should have good resistance to external conditions, and must have the necessary hue and decoration properties, and it is also effective for the base coat. Has a protective effect. [0003] In recent years, my country’s paint industry has been in the ascendant, and the total output of paint has also leapt to the forefront of the world, forming a related industry group, actively promoting the technological revolution and development of the traditional coating field. During this period, high gloss The high-gloss coatings are well-loved by consumers for their bright color and brightness, and dominate the coatings market for a long time. However, with the continuous impr...

AI Technical Summary

Problems solved by technology

However, the existing two-component polyurethane matte topcoat usually needs to add matting powder to realize the matting of the paint film, resulting in limited transparency and recoatability of the topcoat, which brings certain limitations to the performance and construction of furniture coating

[0006] The Chinese patent whose publication number is CN101381581A discloses a kind of polyurethane transparent matte topcoat and its preparation method and application method. The matte topcoat consists of 40-60 parts by weight of alkyd resin, 10-40 parts by weight of elastic resin, 2.0-5.0 parts by weight of matting powder, 0.3-1.0 parts by weight of dispersant, 0.5-2.0 parts by weight of wax powder, 3.0-10 parts by weight of glass powder, 0.2-0.5 parts by weight of leveling agent, 0.2-0.5 parts by weight of It is made of anti-settling agent, 1.0-5.0 parts by weight of 20% anti-scratch resin and 13.6 parts by weight of solvent. The matte topcoat has good scratch resistance and high hardness, and the paint film feels smooth and basically does not White, its transparency and recoatability are improved, but the use of matting powder will also affect the transparency and recoatability

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