TWI253315B - Forming pattern on the anodized surface of an object and a portable electronic device cover with the pattern - Google Patents

Abstract

A pattern is provided on a surface of an object which comprises a metal substrate and a colored anodized outer layer. The anodized surface is irradiated with an ultraviolet beam through a template. The template has pattern thereon which is in the same shape of the said pattern to be formed on the anodized surface. The ultraviolet can penetrate the template only in the pattern area, and irradiates the anodized surface until the desired pattern is obtained on the surface. The color of the pattern on the surface is lighter than the color of the anodized layer, or it is the gradual color of the latter.

Description

1253315 IX. Description of the Invention: [Technical Field] The present invention relates to a method of patterning an object surface and a portable electronic device casing manufactured using the same. [Prior Art], bismuth metals such as aluminum and aluminum alloys, titanium and titanium alloys are becoming more and more widely used in the manufacturing industry. 'There is no need to improve the corrosion resistance and surface decoration of these products, and the products are anodized. Forming an oxide film protective layer on the surface thereof, the oxide film has characteristics of high hardness, high abrasion resistance, high gloss, easy coloring, etc., and the heat resistance of the oxide film and the adhesion property to the substrate are both better. It is very suitable for use as a surface protection and decoration for products. In most cases, it is necessary to form a side case on the surface of the product, such as alphanumeric symbols, decorative screen printing, pasting, etc., which are complicated and complicated, and satisfy the requirements under the circumstance. In recent years, many manufacturers have developed and used the laser light irradiation method to mark the anodized surface, mainly in the area where the anodized surface of the product is punctured into a mark, providing a coating that can change the color of the color under the influence of the laser light irradiation. And marking thereon by laser irradiation, the disadvantage is that the anodized layer is disposed with another coating layer, thereby increasing the cost, and the coating is less resistant to abrasion, hardness, heat resistance and corrosion resistance. In the anodized layer, it is easy to fall off or wear. In addition, there is also a method for changing the color of the laser light under the illumination of the laser light, such as the substrate and the anodized outer layer disclosed in Chinese Patent Publication No. CN1336878A, published on Feb. 20, 2002. The method of providing marking on the surface of the gold object of the inscription, the money is made by the laser light, and the surface is shaped to control the f-beam to pass a larger portion thereof through the oxide layer, and: the local region of the outer layer of the anodized surface of the substrate Inducing at least one visual characteristic ^ to obtain a human eye observable _ mark, the method forms a mark firmly and = the film base depends, but the method of forming the color axis of the mark is more monotonous, so that the beam only closes the substrate The localized area of the outer layer of the anodizing treatment can be controlled by light, and it is not suitable to form a mark or pattern with complicated shapes. The second method of the first-stage laser has the defects of high equipment cost and high energy consumption.叮 【Contents】 6 The purpose of this is to provide a method for forming a pattern on an oxidized surface. The method is simple in process and low in cost. The second aspect of the invention is to provide a pattern of colored beans, a strong pattern, and a complex shape formed on the anodized surface. Another object of the present invention is to provide a pattern having a progressive color of an anodized article which is more aesthetically pleasing and layered. A further object of the present invention is to provide a portable electronic device housing having the above-mentioned items. The invention discloses a method for making a pattern and a portable electronic housing manufactured by the method. The manufacturing method includes the following: firstly, the metal substrate or the plastic body having the metal layer of the mirror is subjected to auditory treatment, and then the anodizing and coloring are performed to make the surface of the substrate have an anode oxygen dialysis, and finally the ultraviolet level is over _ The template of the predetermined pattern shape is irradiated with the anodized surface after the coloring, so that the surface of the anodized surface to be irradiated is colored until a tone acid is formed, and the color tone can be any color of the background color system, and the color tone is wide. In addition, by this manufacturing method, a pattern having a gradual color of the anodized surface can be formed, and the cost is low and the process is simple. The portable electronic device casing manufactured by the method can obtain a homochromatic color or progressive color pattern which is lighter in color than the casing. [Embodiment] Referring to the first and second figures, the article disclosed therein includes a base 1G and an anode oxide film layer 12. The method for manufacturing the product comprises: preparing the alloy material by stamping or other conventional methods, and performing pretreatment by degreasing, water washing, money washing, neutralization, and polishing red order by a conventional method. The dirt and defects existing on the surface of the product are removed to expose the pure aluminum substrate, that is, the substrate 10, and the anodic oxidation and coloring treatment are smoothly carried out; after that, the above hetero-ax alloy products are anodes, bribes are cathodes, and (10)_2Q()g/L DC anodizing in sulfuric acid solution, DC voltage is 8-16V, current density is ^0.0-200·()ΑΛη2, after 3 minutes oxidation treatment can form a thickness of 2〇2 2 anodized film; anodized aluminum The product is washed into water and placed in a coloring tank. The coloring tank contains an organic dye solution having a concentration of Ι-lg/L. The aluminum product is immersed in the organic dye solution for 5-2 minutes, and then taken out for drying. If the surface of the product i is colored, the color is formed. Anodized film 12; please refer to the third, fourth and fifth figures to fabricate a glass template 2 having a pattern 25 having the same contour as the pattern 15 pre-formed on the surface of the article 1, UV light 3 through The template pattern 25 is passed through, and the other areas of the template 2 except the pattern 25 are coated with an isolation layer to block the transmission of ultraviolet light, so that the ultraviolet light 3 is irradiated through the template 2 to the anodized film 12, and the ultraviolet light in the irradiation region is 1%. The organic dye molecules in the film partially decompose and fade. The irradiation time is controlled to obtain a pattern 15 of a desired hue which is shallow relative to the undertone of the anodized film 12. The template 2 can be input into a computer system by a conventional method such as inputting a predetermined pattern into a computer system and performing progressive color editing processing so that the transmittance of the template to ultraviolet light is not in each region, when ultraviolet light is transmitted through the template. When the patterned article is irradiated, the illuminated anodized surface is discolored to a different extent to form a pattern of the background color progressive color, and the formed pattern is more beautiful and has a layered feeling. The above substrate 10 may be an aluminum alloy or other light metal, or may be difficult to be coated on the plastic substrate after injection molding, or may be alloyed on other alloys or other adhesive substrates. Or marking, etc., and can be made into a variety of open 1 shape. Alternatively, the anodizing treatment described above can be carried out by any of the conventional anodizing methods. Similarly, the color processing can also be realized by a conventional method such as natural coloring or electrolytic coloring, and will not be described in detail herein. In the manufacture of the above-mentioned device, it is possible to find the electronic device casing which has the appearance of the color and has the above-mentioned features or the pattern. The method of the island a month gas pattern is because the anodic oxidation surface is exposed by ultraviolet light: 疋, the method is simple and easy, the cost is low, the formed pattern is firm, and the pattern = oxide film layer has a comparative effect on the product. Good protection effect and decorative effect. In addition, by using the method, the gradual color of the ground color can be formed, which is rich in layering, thereby making the product more beautiful. However, the above description has been made in accordance with the invention patent requirements, and the patent application is filed according to law. The above is only the preferred embodiment of the present invention. Those who are familiar with the art of the present invention, 1253315, equivalent modifications or variations in the spirit of the invention, should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a schematic view of a product of the embodiment of the present invention, and the surface thereof is not patterned; the second drawing is a cross-sectional view of the product shown in the first figure along line II-II; The schematic diagram of the operation of the mark; the fourth figure is a schematic view of the surface of the product of the embodiment of the present invention; the fifth figure is a cross-sectional view of the article shown in the fourth figure along the line VV. [Main component symbol description] Product 1 Substrate 10 Anodized film 12 Product pattern 15 Template 2 Template pattern 25 Ultraviolet light 3

Claims (1)

1253315 X. Patent application scope: l - a method for making a pattern, comprising providing a substrate; UT^: anodizing and coloring the substrate; providing - template 'prepared on the template · by ultraviolet light transmitting through Scheduled macros: To form a pattern of expected tones. .杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲 杲Degreasing, washing, alkali washing, neutralization, wherein the pretreatment of the substrate comprises: 4. The method of making the color as described in claim 1 of the patent application. 5. As described in the scope of the patent application, the work described in the second paragraph of the patent application is as described in the first paragraph of the patent application, in which the color is naturally colored. 7. The coloring is electrolytic coloring as described in the first application of the patent application. 8. The H-base is made of a metal substrate as described in claim 1 of the patent application. And a metal layer method is attached to the surface of the substrate, wherein the substrate is a plastic substrate. η·If the application of the patent fine 1G item is fading, the bottom of the ί ί ί “ “ “ “ “ 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗 罗The anodic oxide film is formed by irradiating the colored anodized film with ultraviolet light. The substrate is a portable electronic device casing as described in Item 26#12, wherein the substrate is a metal portable electronic device. The surface of the plastic substrate is plated with a metal layer. The portable electronic device casing described in claim 12 of the patent application, wherein the color tone of the pattern is 10 1253315 and the color of the anodized film belongs to The same color system is lighter than the color of the anodized film. The portable electronic device casing of claim 15, wherein the pattern layer color is a progressive color of the anodized film color system.