Semi-transparent brown raw sienna flavor-clearing type polyurethane wood paint and preparation method

Abstract

The invention relates to semi-transparent brown raw sienna flavor-clearing type polyurethane wood paint and a preparation method, the semi-transparent brown raw sienna flavor-clearing type polyurethane wood paint comprises a component I and a component II, the weight ratio of component I to component II is 1:0.5; the component I comprises flavor-clearing type alkyd resin, matting powder, a dispersant, brown color paste, a leveling agent, a defoaming agent an anti settling agent and a solvent; the component II is a benzene free curing agent mainly comprising TDI and HDI trimer or an addition product; the prepared semi-transparent brown raw sienna flavor-clearing type polyurethane wood paint is free of aromatic hydrocarbons, aldehydes, ketones and heavy metals, can achieve the flavor-clearing effect 48 hours after coating into a film, may not precipitate during storage, and is good in leveling property, good in hand feeling, high in scratch resistance and free of ghost image; after a wooden ware is coated with the paint, the wood grain is clear and incisive, so that the furniture is elegant, simple and natural, an elegant and comfortable feeling is given to people, and the wood paint adapts to modern aesthetics, is very popular with the market and customers, and can be widely used in surface decoration protection of wood wares, metals, plastics and the like.

Description

technical field [0001] The invention relates to a preparation method of a two-component polyurethane wood varnish, in particular to a translucent brown, nasty, clean-odour type anti-scratch two-component polyurethane wood finish. Background technique [0002] With the improvement of people's material and cultural living standards, consumers have higher and higher requirements for the coating effect of furniture, which has led to the rapid growth of domestic wood coatings. In the furniture coating market, American-style painted furniture occupies a relatively large market share. Most of the domestic furniture industry uses color essence (a metal complex dye, such dyes have serious problems such as heavy metals exceeding the standard, containing pathogenic substances, temperature resistance, Poor light fastness and migration resistance, commonly known as Grace) for wood grain wiping and varnishing colorants, most of the resins used for wiping are ordinary alkyd resins and lins...

AI Technical Summary

Problems solved by technology

In the furniture coating market, American-style painted furniture occupies a relatively large market share. Most of the domestic furniture industry uses color essence (a metal complex dye, such dyes have serious problems such as heavy metals exceeding the standard, containing pathogenic substances, temperature resistance, Poor light fastness and migration resistance, commonly known as Grace) for wood grain wiping and varnishing colorants, most of the resins used for wiping are ordinary alkyd resins and linseed oils, and the furniture still remains for a long time after painting. Odor; today's huge wood paint market has higher and higher requirements for paint products. Especially wood polyurethane (PU) paint has excellent comprehensive performance and is widely used by consumers, but there are many shortcomings in the product, such as whitening and blistering , delamination, non-scratch resistance, ghosting, fingerprints are not easy to disappear, etc.