Production method of building material decorating film

Abstract

The invention relates to a production method of a building material decorating film. The production method comprises the following steps: firstly, preparing materials; secondly, dissolving polyurethane resin and preparing separating liquid; thirdly, carrying out high-precision chromatic temperature control printing; and fourthly, coating a chemical separation layer on the bottom surface of a base film. The produced building material decorating film is of a three-layer laminated structure, wherein the middle layer which is a polyvinyl chloride and polypropylene mixed plastic film layer is used as a base film layer; a polyurethane separation liquid coating is arranged at the bottom of the base film layer; and an ink printing layer is arranged at the top of the base film layer. The building material decorating film produced by the method has strong flexibility and good water-proof performance and mildew resistance, expands varieties of building materials to which the decorating film is applied; in addition the decorating film is also adhered to woods, bamboo woods, plastics and artificial wood boards as well as metal, cement and other materials, and has the advantages of wide application range and clear printing effect; and when a coiled product is uncoiled, the front surface and the back surface of the film are not bonded together, the simulating texture is strong, and the building material decorating film is particularly as applicable to wood grain imitated boards with concavo and convex grains.

Description

technical field [0001] The invention relates to a production method of a plastic film decorative film that is pasted on the surface of building materials. Background technique [0002] For building material veneer, decorative paper has been widely used at present. It is mainly used on wooden boards, bamboo boards, plastic shaking boards, artificial wood boards and other building materials, and the patterns printed on the decorative paper are used to decorate the surface of building materials. , to achieve beautification or simulation effects, but the decorative paper is brittle and easy to crack, not firm, not waterproof, and easy to mildew. CN103276631A discloses a patent application for "environmentally friendly bathroom composite decorative paper and its manufacturing method". Titanium powder paper is used as a substrate, and a wear-resistant medium layer, a printing ink layer, a melamine layer and an acrylic layer are sequentially sprayed on its upper surface to improve ...

AI Technical Summary

Problems solved by technology

[0002] For building material veneer, decorative paper has been widely used at present. It is mainly used on wooden boards, bamboo boards, plastic shaking boards, artificial wood boards and other building materials, and the patterns printed on the decorative paper are used to decorate the surface of building materials. , to achieve beautification or simulation effects, but the decorative paper is brittle and easy to crack, not firm, not waterproof, and easy to mildew

CN103276631A discloses a patent application for "environmentally friendly bathroom composite decorative paper and its manufacturing method". Titanium powder paper is used as a substrate, and a wear-resistant medium layer, a printing ink layer, a melamine layer and an acrylic layer are sequentially sprayed on its upper surface to improve Softness and water resistance are improved, but since it is still a decorative paper, the defects of its paper quality are difficult to get rid of, and some are brittle and easy to crack, the mildew resistance is not high enough, and the firmness is not ideal enough

After market adjustment and search, it has not been found that the plastic decorative film used for covering building materials has been reported in the market sales and materials