Wood floor double-sided coating method based on 3D printing technology

Abstract

The invention discloses a wood floor double-sided coating method based on a 3D printing technology. The wood floor double-sided coating method sequentially comprises the following process steps that S1, the surface and the back face of a profile are treated; S2, a target material section with a certain thickness is scanned to form color image information and a three-dimensional model; S3, according to the three-dimensional model, stacked printing is carried out on the surface and the back face of the profile to form an upper texture structure layer and a lower texture structure layer; and S4,UV printing is carried out on the upper texture structure layer and the lower texture structure layer according to the color image information correspondingly to form an upper texture pattern layer and a lower texture pattern layer. According to the double-sided coating method, the texture structure of precious hard broad-leaved wood can reappear relatively realistically, and a formed 3D coating layer has the stereoscopic impression; and simultaneous printing of the surface and the back face of the wood floor can be achieved at the same time, and the added value of the low-grade profile is improved.

Description

technical field [0001] This application relates to the technical field of painting, in particular to a double-sided painting method for wooden floors based on 3D printing technology. Background technique [0002] The high value-added utilization of low-grade profiles (such as plywood, high-density fiberboard, oriented strand board, etc. made of fast-growing wood, branch wood, etc., or solid wood profiles directly made of fast-growing wood) has always been a research in the field of wood processing. topic. A solution for high value-added utilization of low-grade profiles is to produce wood textures of high-grade wood (such as precious wood or A-grade hard hardwood) on the surface of low-grade profiles by 3D printing. In the prior art, this solution includes the following three specific implementation methods: [0003] (1) Multi-color printing, which uses the existing coating production line to print wood texture on the surface of the profile through an indentation roller an...

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Problems solved by technology

[0003] (1) Multi-color printing, which uses the existing coating production line to print wood texture on the surface of the profile through an indentation roller and multiple color rollers, but one set of rollers can only print one wood texture, so this method is limited Due to the number of roller plates, the types of wood textures that can be produced are very limited, and the repetition rate of the same wood texture after product paving is high;

[0004] (2) Inkjet printing, which prints the scanned pattern layer (UV pattern layer or ink pattern layer) on the surface of the profile. Although this method can print any wood texture scanned, it is limited by the way of plane printing , so the wood texture lacks three-dimensionality, and the printed wood texture has low fidelity;

[0005] (3) Layer-by-layer inkjet printing, which first prints the scanned pattern layer (UV pattern layer or ink pattern layer) on the surface of the profile, and then sprays transparent or translucent UV or ink on a specific position on the pattern layer to form texture layer, but the texture layer is overlaid on the pattern layer, so the pattern and texture of the wood texture produced by this method are visually separated, and the printed wood texture has low fidelity

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