LED photocuring spray painting process

Abstract

The invention discloses an LED photocuring spray painting process which comprises the following steps of: (1) cleaning the surfaces of workpieces; (2) putting the workpieces on a bakelite jig, wherein the bakelite jig is provided with a plurality of accommodating grooves, and the workpieces are accommodated in the accommodating grooves; (3) putting the bakelite jig on a working platform of a piezoelectric type LED photocuring spray painting machine, wherein a photocuring device and a spray painting device of the piezoelectric type LED photocuring spray painting machine are moved in a two-dimensional plane above the working platform so as to ensure that the spray painting device sprays a preset pattern layer on the surfaces of the workpieces and the photocuring device cures the pattern layers; and (4) spraying finish paint on the surfaces of the workpieces by the spray painting device of the piezoelectric type LED photocuring spray painting machine, and meanwhile, curing the finish paint by the photocuring device. The LED photocuring spray painting process reduces the process steps and improves the production efficiency, and the cost is relatively lower.

Description

technical field [0001] The invention relates to a color printing process, in particular to an LED photocuring inkjet process with simple operation steps and low production cost. Background technique [0002] The traditional process for color printing production is to first spray a layer of transparent primer on the work object, and then use a color printer to spray the middle paint on it within 48 hours, and finally use UV or PU varnish (ie topcoat) To protect the painted pattern. However, this kind of color printing process has many disadvantages, as follows: first, it needs to be primed before printing, and the long production cycle will increase the cost and increase the defect rate; second, it needs 48 hours after the primer is finished If the time is exceeded, the ink will not be able to cover the material, making the operation more complicated; third, the thickness of the primer coating will affect the clarity and quality of the printing pattern; fourth, the primer T...

AI Technical Summary

Problems solved by technology

However, this kind of color printing process has many disadvantages, as follows: first, it needs to be primed before printing, and the long production cycle will increase the cost and increase the defect rate; second, it needs 48 hours after the primer is finished If the time is exceeded, the ink will not be able to cover the material, making the operation more complicated; third, the thickness of the primer coating will affect the clarity and quality of the printing pattern; fourth, the primer The paint must be compatible with the middle paint and top coat, otherwise there will be a problem of NG in the physical property test

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