Integral bathroom wallboard and preparation method thereof

Abstract

The invention discloses a preparation method of an integral bathroom wallboard. The preparation method comprises the following steps of carrying out first hot pressing on sheet molded plastic to form a pre-pressed part, laying a heat transfer film on the pre-pressed part, and carrying out second hot pressing to obtain the bathroom wallboard, wherein the heat transfer film sequentially comprises a base layer, a release layer, a protective layer, a pattern layer and a bonding layer; the bonding layer is used for being bonded with the pre-pressed part; the pattern layer is provided with preset patterns; the bonding layer is provided with an isocyanate group; the sheet molded plastic is provided with active hydrogen; the isocyanate group is used for chemical bond connection with active hydrogen; the raw materials of the bonding layer comprise epoxy resin and polyurethane resin; and the raw material of the protective layer comprises a copolymer formed by an epoxy monomer and an acrylate monomer. According to the preparation method of the integral bathroom wallboard, the heat transfer printing process is adopted, and all layers of the bathroom wallboard are firmly connected.

Description

technical field [0001] The invention relates to the technical field of home improvement building materials and integral bathrooms, in particular to a method for preparing an integral bathroom wall panel with a pattern and an integral bathroom wall panel prepared by the preparation method. Background technique [0002] Existing SMC color (patterned) wallboards are mainly printed with decorative materials, dipped in glue, and molded integrally with SMC to achieve personalized color requirements; or use sandblasting, spray primer, and then transfer wood grain transfer paper to Reach for undecorated colored molded wall panels. [0003] The above two processes have the following defects: 1. The decorative paper material is molded into colored SMC wallboard. After the surface protective material falls off during use, there will be problems such as mold, yellowing, and discoloration due to the exposure of the paper fiber to the humid environment, which will affect the whole. The u...

AI Technical Summary

Problems solved by technology

[0003] The above two processes have the following defects: 1. The decorative paper material is molded into colored SMC wallboard. After the surface protective material falls off during use, there will be problems such as mold, yellowing, and discoloration due to the exposure of the paper fiber to the humid environment, which will affect the whole. The use of the bathroom; the patent with the publication number CN107461010A has improved the decorative paper material, and used decorative fiber cloth to impregnate it to prepare the veneer material to solve the problem of moldy yellowing, but the printing clarity is not high, and the preparation of large-size wallboards 2. Although the technology used in the patent with the publication number CN107284107A can solve the problem of decorative paper materials, its process is complicated. Then sandblasting, painting, transfer and other processes are required, and additional stamping equipment is required, the operating environment is harsh, time-consuming and labor-intensive

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