Semi-transparent amber yellow raw umber tasteless polyurethane wood lacquer and preparation method

Abstract

The invention relates to a semi-transparent amber yellow raw umber tasteless polyurethane wood lacquer and a preparation method. The wood lacquer is prepared from a component A and a component B, andthe weight ratio of the component A to the component B is 1:0.5; the component A is prepared from tasteless alkyd resin, extinction powder, a dispersing agent, amber yellow color paste, a leveling agent, a defoaming agent, an anti-settling agent and a solvent; and the component B is a benzene-free curing agent taking TDI (toluene diisocyanate) and HDI (hexamethylene diisocyanate) tripolymers or addition products as main ingredients. The prepared semi-transparent amber yellow raw umber tasteless polyurethane wood lacquer is free of aromatic hydrocarbon, free of aldehyde ketone and free of heavymetal and can achieve a tasteless effect after being coated to form a film for 48 hours; the wood lacquer does not settle during storage, has good leveling property, good hand feeling and high scratch resistance, and is free of ghosting; by coating wooden ware with the wood lacquer, wood grains are clear and transparent, so that the furniture is elegant, noble, rustic and natural, brings gracefuland comfortable feeling for people, adapts to the modern aesthetics, and is very popular with the market and loved by customers; and the wood lacquer can be widely applied to surface decoration and protection of wooden ware, metal, plastic 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 amber-yellow raw amba clean-odor 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 a...

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.