Semitransparent mahogany calcined umber smell cleaning type polyurethane woodenware paint and preparation method thereof

Abstract

The invention relates to a semitransparent mahogany calcined umber smell cleaning type polyurethane woodenware paint and a preparation method thereof. The paint comprises a component A and a component B according to a weight ratio of 1:0.5; the component A is composed of smell cleaning type alkyd resin, extinction powder, a dispersant, an imitation mahogany color paste, a leveling agent, an antifoaming agent, an anti-settling agent and a solvent; and the component B is a non-benzene curing agent based on TDI and HDI trimer or adduct. The semitransparent mahogany calcined umber smell cleaning type polyurethane woodenware paint prepared in the invention does not contain aromatic hydrocarbons, aldehyde, ketone or heavy metals, and can reach a smell cleaning effect 48h after a film is formed by coating the paint; the paint has the advantages of no settlement, good levelability, good handle, high scratch resistance and no ghosting in the storage process; and the paint can be coated on woodenware to realize clear and intensive wood grains and make furniture elegant, noble, natural and comfortable, adapts to modern aesthetics, is popular in the market and is loved by users. The paint can be widely used to realize surface decoration protection of woodenwares, metals and plastics.

Description

technical field [0001] The invention relates to a preparation method of a two-component polyurethane wood varnish, in particular to a translucent mahogany-colored calcined 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...

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.