High-light like traceless decoration technological process

Abstract

The present invention discloses a simulated highlight seamless decoration technique used for the casing surface decoration of products such as a flat television, etc. The method comprises the steps as follows: at least one color of environmental protective nontoxic colored paint is collocated; a plastic casing is manufactured; a cleanser is used for removing dust, oil stain and impurity on the casing surface, and the casing surface is processed by blowing dust and drying; the colored paint is sprayed and coated on the surface of the casing; the casing is sent into a dryer for drying; highlight ultraviolet varnish is sprayed and coated on the surface of the casing with the colored paint, and the surface of the casing is preheated and leveled and then is radiated and solidified by ultraviolet light. The colored paint used by the present invention is nontoxic and environmental protective, dries fast and has good covering performance, and the colored paint is required to be sprayed and coated by a single layer and has high production efficiency. The colored paint and the UV varnish have good adhesive attraction on the plastic casing, high hardness, good weather resistance and scratch resistance; the leveling degree and the fullness of the surface of a coating film are good, and decorative effect and protective effect are strong, so that the casing surface has very good highlight effect, and the technique has very high value for developing, popularizing and applying.

Description

technical field [0001] The invention relates to the technical field of high-gloss imitation traceless decoration technology, in particular to an imitation high-gloss traceless decoration process method for surface decoration of product shells such as flat-panel televisions. Background technique [0002] At present, in order to achieve the high-gloss effect on the surface of consumer electronics products (such as the panel, rear shell and base of the TV), two processes are mainly used: traditional ultraviolet radiation (UV) spraying process and rapid cooling and rapid heating high gloss seamless injection molding craft. [0003] Using the traditional UV spraying process, the product has high surface hardness and good scratch resistance, and has low requirements for injection molding equipment. It uses ordinary injection molding raw materials, which is cheap and low in process cost, but the shell surface has poor leveling and vividness. Low; in production, VOC emissions are h...

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Problems solved by technology

[0003] Using the traditional UV spraying process, the product has high surface hardness and good scratch resistance, and has low requirements for injection molding equipment. It uses ordinary injection molding raw materials, which is cheap and low in process cost, but the shell surface has poor leveling and vividness. Low; in production, VOC emissions are high, causing greater pollution to the environment

[0004] The rapid cooling, rapid heating, high gloss and traceless injection molding process can make the surface of the product smooth, with good surface gloss, high vividness and decorative effect; but due to technical reasons, expensive injection molding peripheral equipment is required when using this process Provide quick cooling and quick heating medium and accurate control device

In order to prevent the formation of weld lines, the high-gloss seamless injection mold with rapid cooling and fast heating has a complex structure and high cost, and requires the use of plastic raw materials that have better fluidity than ordinary plastic materials and can produce special high-gloss effects.

During injection molding production, it is necessary to continuously grind and polish the molding surface of the mold to obtain a satisfactory product surface effect, resulting in prolonged injection molding cycle, reduced production efficiency, low molding yield, and high process cost; The hardness is only 1F or 1HB. During transportation and use, it is easy to cause surface quality problems such as scratches and abrasions, which directly affects the overall quality and appearance of the product.

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