CN201243414Y - Casing and electronic product using the same - Google Patents

Abstract

The utility model provides a casing and an electronic product using the casing. The casing includes a casing base material and a color-changing ink layer on the surface of the casing base material. It is characterized in that the casing also includes a transparent film layer. The transparent film layer is on top of the color shifting ink layer. According to the shell provided by the utility model, a transparent film layer is provided in addition to the color-changing ink layer on the surface of the base material, so that the shell has a color-changing effect, is more wear-resistant, and has a more stable quality.

Description

Shell and electronic product using the shell

technical field

The utility model relates to a shell with a decorative layer and an electronic product using the shell.

Background technique

Consumers have higher and higher requirements for appearance design. Therefore, on the premise of adapting to functional design, rationally and organically integrate appearance design with product technology, color and culture to achieve further fashion, humanization, personalization and entertainment of products. This is a new trend in the design of future electronic products, especially mobile phones.

The shells of many products on the market such as mobile phones, computers, mp3s, shavers, mice, etc. are usually made of plastic products, and their colors are usually fixed. In order to diversify the appearance of products, product designers apply color-changing materials to product casings. Chinese patent 200620134219.1 discloses a mobile phone shell, which is coated with a color-changing paint layer. In this way, although the mobile phone has the effect of discoloration on the appearance, because the discoloration paint layer is on the outermost surface of the product casing, it is easily worn during use.

Utility model content

The purpose of the utility model is to overcome the disadvantage that the casing of the color-changing electronic product in the prior art is easy to be worn, and to provide a casing with good decorative effect and wear resistance.

The utility model provides a shell, which comprises a shell base material and a color-changing ink layer on the surface of the shell base material, and the shell also includes a transparent film layer, and the transparent film layer is located on the color-changing ink layer.

The utility model also provides an electronic product, the electronic product casing includes a casing substrate and a color-changing ink layer located on the surface of the casing substrate, the electronic product casing also includes a transparent film layer, and the transparent film layer is located on the surface of the casing substrate. Color shifting ink layer on top.

According to the shell provided by the utility model, a transparent film layer is provided in addition to the color-changing ink layer on the surface of the base material, so that the shell has a color-changing effect, is more wear-resistant, and has a more stable quality.

Description of drawings

Fig. 1 is the embodiment structural representation that the utility model provides

Detailed ways

The embodiment of the utility model provides a high-quality color-changing shell. The casing includes a casing substrate 1 , a color-changing ink layer 4 on the casing substrate 1 , and a transparent film layer 5 on the color-changing ink layer 4 .

The shell substrate can be various substrates, such as plastic materials commonly used in electronic products such as polyester, polycarbonate PC, acrylonitrile-butadiene-styrene ABS, plexiglass PMMA, or among them A composite of at least two materials.

The above-mentioned plastic base material can be prepared by various methods, for example, it can be obtained by cutting various existing plastic base materials, or it can be obtained by direct injection molding. The injection molding method is well known to those skilled in the art. For example, a plastic substrate can be obtained by using a Sumitomo SE180DU injection molding machine for injection molding.

The transparent film layer 5 is made of a transparent polymer sheet, and the transparent polymer sheet can be formed of any transparent film-forming material. Because the transparent film layer 5 is the outermost layer of the plastic shell of the present invention, therefore, in order to make the plastic have excellent wear resistance, the material of the transparent polymer sheet is preferably polycarbonate, polymethyl methacrylate, polyacrylic acid One or more of methyl ester and polyethylene terephthalate.

、HTR-093的油墨中加以研磨制成所需的变色油墨，然后采用丝网印刷机(优印丝网移印机械器材厂、型号为UP-S5070M)及50-400目的网版将变色油墨印刷在透明聚合物片上。然后在温度为90摄氏度的条件下烘烤至表干即可。The color-changing ink layer 4 can be made by adding reversible color-changing materials such as temperature-sensitive color-changing, photosensitive color-changing, and optical color-changing materials to colorless and transparent colorless ink. The temperature-sensitive color-changing coating can change color with the change of the external environment temperature; the photosensitive color-changing materials mainly include silver chloride, silver bromide, stilbenes, spirocycles, norbornadiene, triphenylmethane derivatives, Salicylidene compounds, etc. Coatings of optically-chromic materials can exhibit different colors depending on the viewing angle. This embodiment adopts ^5-25 % reversible discoloration material to add to the brand of Powerlong Company as

, HTR-093 ink to be ground to make the required color-changing ink, and then use a screen printing machine (Youyin Screen Printing Machinery Equipment Factory, model UP-S5070M) and a 50-400 mesh screen to print the color-changing ink Printed on a clear polymer sheet. Then bake at a temperature of 90 degrees Celsius until the surface is dry.

，HTR-952的黑色油墨，可采用各种印刷方法形成。然后在温度为90摄氏度的条件下烘烤至表干即可。Preferably, a background ink layer 3 can be printed after the color-changing ink layer 4 is printed, and the background ink is preferably black, purple, blue and other dark colors. Because the dark background can better absorb the irradiating light, the reflected light is reduced, which can reduce the interference between the reflected light on the background surface and the reflected light from the color-changing ink layer, and the color-changing effect is more obvious. In this embodiment, the trademark of Baolong Company is adopted as

, HTR-952 black ink can be formed by various printing methods. Then bake at a temperature of 90 degrees Celsius until the surface is dry.

，Aquaprees

ME的水性粘结剂，采用普通丝网印刷，分次多层印刷形成。According to the shell provided by the present invention, preferably, a layer of adhesive layer 2 can be printed between the color-changing ink layer 4 or the background ink layer 3 and the base material 1, which can protect the previously printed ink layer and increase the ink layer and the base material. The binding force between the material layer surface. The adhesive layer can adopt the trademark of Baolong Company

, Aquaprees

ME's water-based adhesive is formed by ordinary screen printing and multi-layer printing.

The transparent polymer sheet after the above process is cut into the required size, and then the transparent polymer sheet is molded, and the flat transparent polymer sheet is formed into a shape that matches the outer surface of the substrate 1 . Compression molding has strict requirements on the design and manufacture of molds. It is necessary to pay attention to the mutual cooperation between the forming mold and the cavity of the injection mold, and the shape and size errors of the two should have high processing accuracy. To avoid sharp corners, all corners should adopt a circular arc transition method. This embodiment is high-pressure molding, that is, the preheated transparent polymer sheet is molded with air on a metal mold at a temperature above 150°C. During the molding process, attention should be paid to adjusting the molding temperature, configuring the pressure and holding time. The equipment used in this example is LFORM100-A high-pressure molding machine. Pressurize 7Kg under low pressure and keep the pressure for 5s. Finally exhaust 12s.

After the part of the transparent polymer sheet that does not need to cooperate with the base material 1 is punched off, it is shaped into a transparent film layer 5 . Before the injection molding of the substrate 1 starts, the pre-shaped transparent film layer 5 is inserted into the injection mold from the back. This injection mold comprises die and molding die (convex die), the depth of concave film cavity should be bigger than the thickness of a transparent film layer 5 than the height of molding die, after transparent film layer 5 is put into die, the base material 1 The injection compound is injected on the inner surface of the transparent film layer 5, so that the injection compound and the transparent film layer 5 are bonded into one body and cured for molding. In this embodiment, the injection molding material used is PC7300, and the injection molding temperature is 260-275° C. The injection molding method is well known to those skilled in the art, for example, injection molding can be performed by using a Haitian 100-ton injection molding machine.

According to the plastic casing provided by the embodiment of the present invention, the thickness of the formed adhesive layer 2 is

10-100 microns, preferably 30-70 microns, the thickness of the formed background ink layer is 10-50 microns, preferably 20-40 microns, the thickness of the formed color-changing ink layer is 10-60 microns, preferably 25 microns -50 microns, the thickness of the formed transparent film layer is 0.05-3 mm, preferably 0.15-0.75 mm.

The utility model also provides an electronic product, which comprises a main body and an electronic product shell matched with the main body, wherein the electronic product shell is the electronic product shell provided by the present invention.

The main body includes various components that can realize the functions of the electronic product contained in the housing of the electronic product. The types, combinations and connection relationships of the various components are well known to those skilled in the art and will not be repeated here.

The present invention is not particularly limited to the electronic product, which may be a mobile phone, MP3 player, PDA, notebook computer, digital camera, etc., preferably a mobile phone.

According to the plastic shell provided by the utility model, high-quality gorgeous and color-changing effects can be realized on the base material of the shell, so that the decoration effect of the shell is further improved, and the shell is wear-resistant and of higher quality.

According to the plastic shell provided by the utility model, the various properties of the shell such as adhesion, scratch resistance, vibration and wear resistance can still maintain good effects, such as the adhesion test can reach level 0 (shared 0, 1, 2, 3, 4 and 5 grades, 0 grade is the best), scratch resistance can reach 2N, vibration wear can reach 2H (H is hour, generally requires more than 1.5 hours).

Claims (9)

1. A casing, which includes a casing substrate and a color-changing ink layer on the surface of the casing substrate, characterized in that the casing also includes a transparent film layer, and the transparent film layer is located on the color-changing ink layer. 2. The casing according to claim 1, wherein the transparent film layer is a hard transparent film layer. 3. The casing according to claim 1, wherein the color-changing ink layer is a reversible color-changing ink layer. 4. The casing according to claim 3, wherein the reversible color-changing ink layer is a heat-sensitive color-changing ink layer or a photosensitive color-changing ink layer. 5. The casing according to claim 1, further comprising a background ink layer disposed between the color-changing ink layer and the transparent film layer. 6. The casing according to any one of claims 1 to 5, characterized in that the casing further comprises an adhesive layer disposed under the transparent film layer and attached thereto. 7. The casing according to claim 6, wherein the adhesive layer has a thickness of 10-100 microns, the background ink layer has a thickness of 10-50 microns, and the color-changing ink layer has a thickness of 10-100 microns. 60 microns, the thickness of the transparent film layer is 0.05-3 microns. 8. The casing according to claim 7, wherein the adhesive layer has a thickness of 30-70 microns, the background ink layer has a thickness of 20-40 microns, and the color-changing ink layer has a thickness of 25-70 microns. 50 microns, the thickness of the transparent film layer is 0.15-0.75 microns. 9. An electronic product, wherein the housing of the electronic product is the housing according to any one of claims 1-7.

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