Method for preparation of PU-coated paper

Abstract

The invention discloses a method for preparation of PU-coated paper. The method comprises the following steps: (a) immersing a base paper in a first mixed resin material, wherein the first mixed resin material is prepared from, by mass, 2-3 parts of waterborne polyurethane, 3-4 parts of water-based styrene-butadiene resin and 3-4 parts of auxiliaries; (b) conducting first drying on the base paper; (c) coating a second mixed resin material on the base paper, wherein the second mixed resin material is prepared from, by mass, 4-5 parts of water-based polyurethane, 2-3 parts of water-based styrene-acrylic resin and 3-4 parts of auxiliaries; (d) conducting second drying of the base paper; (e) conducting the surface treatment of the dried base paper; (f) conducting winding of the treated base paper to obtain the desired PU-coated paper. The preparation method has simple process and no pollution to the environment, is environmentally friendly, contributes to processing of irregular parts and has convenient transportation, and the storage time of the prepared PU-coated paper is long.

Description

technical field [0001] The invention relates to a preparation method of PU coated paper. Background technique [0002] At present, with the rapid development of the socialist modernized market economy, people's lives are more prosperous, and people's requirements for housing decoration are getting higher and higher. Returning to nature and enjoying life have become the mainstream of people's thinking. Therefore, for interior decoration, people pay more attention to the sense of color coordination and the richness of patterns. At the same time, the garden design concepts of curved, strange and strange are also more integrated into the field of interior decoration. [0003] The emergence of melamine impregnated paper and artificial veneer has changed the pattern of people's interior decoration with its rich texture and beautiful color, making the color style of interior decoration extremely rich. However, due to the brittle texture of melamine impregnated paper, it is difficu...

AI Technical Summary

Problems solved by technology

[0003] The emergence of melamine impregnated paper and artificial veneer has changed the pattern of people's interior decoration with its rich texture and beautiful color, making the color style of interior decoration extremely rich. However, due to the brittle texture of melamine impregnated paper itself, it is difficult to process special-shaped parts. Promotion makes it difficult for the color style of special-shaped pieces of interior decoration to be consistent with the main style, reducing the overall sense of color coordination and aesthetics of interior decoration