Plastic housing with metal brushed appearance and preparing method thereof
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A metal wire drawing, plastic shell technology, applied in chemical instruments and methods, metal material coating technology, ion implantation plating, etc., can solve the problems of stains, weak metal texture, poor wear resistance of the plastic shell surface, etc.
Active Publication Date: 2014-05-07
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a plastic shell with a metal wire drawing appearance, aiming at solving the problem of poor wear resistance and stains on the surface of the plastic shell in the prior art, and the appearance is relatively opaque and not three-dimensional. The problem of weak metal texture
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[0025] Correspondingly, as figure 2 As shown, this embodiment also provides a method for preparing a plastic shell with a metal wire drawing appearance, including the following steps:
[0026] S01. Coating a UV paint layer on the surface of the PET film, and carrying out UV irradiation and embossing processing, to obtain a UV paint layer with a brushed texture structure;
[0027] S02. Optical coating on the surface of the UV paint layer to obtain an optical coating layer;
[0028] S03. Print an ink layer on the surface of the optical coating layer, and perform hot pressing and injection molding to obtain a plastic shell with a metal wire drawing appearance.
[0029] In the above step S01, the PET film can be cut according to the actual required size and shape, and then UV irradiation and embossing are performed on the surface of the PET film layer 1 to obtain the UV paint layer 2 with a brushed texture structure 21 .
[0030] As a preferred embodiment, the energy of the abo...
Embodiment 1
[0042] A method for preparing a plastic shell with a metal wire drawing appearance, comprising the following steps:
[0043] S11. Cut the PET film into a square shape according to the size of the standard part, and then coat a layer of UV paint with a thickness of 15um on the surface of the cut PET film layer, and use an energy of 750mJ / cm 2 The UV light irradiates the UV paint for 30-60 seconds to obtain a UV paint layer with a brushed texture structure;
[0044] S12. Use a visible light spectrophotometer to measure the reflectance and transmittance of the standard part, and input the determined reflectance and transmittance values into the computer program, and determine that the coating materials are titanium dioxide and silicon dioxide through programming calculations, and the number of coating layers is 5 layer, the thickness of each layer is 200-300nm, and the material of each layer is silicon dioxide, titanium dioxide, silicon dioxide, titanium dioxide and silicon dio...
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Abstract
The present invention discloses a plastic housing with a metal brushed appearance and a preparing method thereof. The plastic housing comprises a PET film layer, a printing ink layer and a resin layer; wherein the PET film layer, the printing ink layer and the resin layer are successively laminated and combined. The plastic housing further comprises a UV paint layer and an optical plated film layer which are laminated and combined. Furthermore the resin layer, the printing ink layer, the optical plated film layer, the UV paint layer and the PET film layer are successively laminated and bonded from inside to outside. According to the plastic housing, through preparing the UV paint layer with a brushed pattern, wearing resistance and transparency of the plastic housing are improved, so that the brushed pattern is ordered and clear. Simultaneously through preparing the optical plated film layer, a remarkable metal qualitative sense is endowed to the plastic housing, so that the brushed effect is more stereo and clear. The invention further discloses a preparing method for the plastic housing with the metal brushed appearance. The preparing method of the invention has the functions of: eliminating mold machining and surface treating process in the prior art; shortening production period; facilitating batch production; and eliminating appearance problems of particle, impurity, oil accumulation, surface peeling, etc. in surface treating process.
Description
technical field [0001] The invention relates to a plastic surface processing technology, in particular to a plastic shell with a metal wire drawing appearance and a preparation method thereof. Background technique [0002] With the development of the mobile phone industry, more and more people pay attention to its appearance. Plastic is the most commonly used material for mobile phone casings. Plastic casings are made to have the effect of metal wire drawing and are widely used in mobile phone products. [0003] At present, the method to realize the metal wire drawing effect on plastic parts is to carry out wire drawing treatment on plastic molds and then inject plastic parts with wire drawing texture on the surface, and finally carry out surface treatment. There are mainly two existing schemes. The first solution is to realize the metal wire drawing effect on the plastic parts through the processing of plastic molds. This solution includes three processes, namely abrasive ...
Claims
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