TWI631237B - Anodic treatment method for a full-color piece and a full-color aluminum piece - Google Patents

Abstract

An anodizing method for a full-color workpiece includes the steps of: providing an aluminum workpiece; and anodizing the aluminum workpiece to form an oxide film layer on the surface of the aluminum workpiece, the oxide film layer forming a plurality of cells; and immersing the aluminum workpiece before coloring Treating the liquid to enlarge the pores of the aluminum workpiece to a predetermined pore size and to stabilize the oxide film layer; drying the aluminum workpiece for the first time; coating a colorful solvent-based ink on the aluminum workpiece, wherein the solvent-based ink particles The diameter should be smaller than the predetermined pore diameter of the cells to enter the cells; the second time the aluminum workpiece is dried; the aluminum workpiece is immersed in the fixing agent, and the solvent ink is sealed in the cells to suppress fading; The aluminum workpiece is sealed with a sealing agent to seal the cells; and the aluminum workpiece is dried. Thereby the invention provides an anodically treated full color aluminum workpiece.

Description

Anode processing method for full color workpieces and full color aluminum workpiece

The invention relates to a full-color anode treatment method for an aluminum workpiece, in particular to a process for forming a full-color pattern on an aluminum workpiece by an anode treatment process.

Anode treatment is gradually being used on various aluminum workpieces to enhance the hardness of the aluminum workpiece surface to form a colored appearance. However, in the process of anodizing, the color is usually monochromatic, or some of them are masked, and another color is formed after the second anodizing. Therefore, the appearance of the aluminum workpiece after the anodization is still very monotonous.

The reason is that the surface of the aluminum workpiece after the anodization forms very minute cells, so that it is not easy to uniformly and efficiently enter the cells into the cells. Only the color material attached to the surface of the aluminum workpiece cannot be continuously fixed thereto. Furthermore, the color material is likely to cause fading after being exposed to the sun and the like. In addition, how to form patterns on aluminum workpieces in an efficient manner is also to be studied. Therefore, how to form a full-color pattern on the surface of an aluminum workpiece and keep the pattern fixed and not easily faded is a problem that the industry has been trying to solve.

The technical problem to be solved by the present invention is to provide a full-color anode treatment method for an aluminum workpiece, such that the surface of the aluminum workpiece forms an aluminum anode film layer of a full-color pattern, and the pattern is continuously fixed and is not easily faded.

The technical problem to be solved by the present invention is also to form a pattern on an aluminum workpiece in an efficient manner.

In order to solve the above technical problem, according to one aspect of the present invention, an anode processing method for a full color workpiece is provided, comprising the steps of: (a) providing an aluminum workpiece; and (b) anodizing the aluminum workpiece to make the aluminum workpiece Forming an oxide film layer on the surface, the oxide film layer forming a plurality of cells; (c) soaking the aluminum workpiece in a pre-dyeing treatment liquid to enlarge the pores of the oxide film layer of the aluminum workpiece to a predetermined aperture and stabilize (d) drying the aluminum workpiece for the first time; (e) coating a colorful solvent-based ink on the aluminum workpiece, wherein the solvent-based ink has a particle size smaller than the predetermined pore diameter of the cells, Entering the cells; (f) drying the aluminum workpiece a second time; (g) soaking the aluminum workpiece in a fixing agent to block the solvent-based ink in the cells to suppress fading; Soaking the aluminum workpiece in a hole to seal the cells; and (i) drying the aluminum workpiece.

In addition, the technical problem to be solved by the present invention is to provide an anode-processed full-color aluminum workpiece having a full-color pattern on the surface of the anodized aluminum workpiece, and the pattern is continuously fixed and not easily faded.

According to a preferred embodiment of the present invention, the step of applying a colorful solvent-based ink to the aluminum workpiece comprises spraying a solvent-based ink having a toner particle size of less than 100 nanometers (nm) onto the aluminum workpiece by a printer. On the unsealed oxide film layer.

In order to solve the above technical problem, according to one aspect of the present invention, an anodized full-color aluminum workpiece is provided, comprising an aluminum layer, an oxide film layer formed on a surface of the aluminum layer, the oxide film layer comprising a plurality of cells a hole, wherein the cells reach a predetermined aperture; a colorful solvent-based ink penetrates into the cells of the aluminum workpiece, wherein the solvent-type ink has a molecular diameter smaller than the predetermined aperture; a drug system is deposited in the cells of the aluminum workpiece, and the solvent-based ink is blocked in the cells to suppress fading; a porogen is deposited in the cells of the aluminum workpiece, and is located in the cell Fix the outer end of the medicament.

The present invention has the following advantageous effects: The present invention can produce an anodized full-color aluminum workpiece which can produce a very fine pattern of the aluminum workpiece. The invention can be very convenient to use the computer software to control the printing machine, quickly form various full-color patterns on the aluminum workpiece, and provide a very beautiful appearance of the aluminum workpiece. In addition, the present invention utilizes a fixing agent to seal the ink in the cells of the aluminum workpiece to suppress ink fading.

In order to further understand the technology, method and function of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the invention. The drawings and the annexed drawings are to be considered as illustrative and not restrictive.

1‧‧‧Aluminum workpiece

12‧‧‧Aluminum layer

121‧‧‧Oxide film layer

10, 10a‧‧‧ cell hole

D1, D2‧‧‧ aperture

C‧‧‧Ink granules

D3‧‧‧ particle size

91‧‧‧Ink

92‧‧‧ fixing agent

93‧‧‧ Sealing agent

1 is a flow chart of an anode processing method for a full color workpiece of the present invention.

2 is a partially enlarged cross-sectional view showing the aluminum workpiece of the present invention subjected to anodization.

Fig. 3 is a schematic view showing the aluminum workpiece of the present invention undergoing reaming and printing.

Figure 4 is a schematic view of the aluminum workpiece of the present invention after being colored.

Fig. 5 is a schematic view showing the fixing and sealing of the aluminum workpiece of the present invention.

Please refer to FIG. 1 , which is a flow chart of an anode processing method for a full color workpiece according to the present invention. The present invention provides an anode processing method for a full color workpiece, comprising the following steps: First, as shown in step S10, first, an aluminum workpiece is provided. The aluminum workpiece can be a variety of aluminum products, such as a mobile phone case, an aluminum mouse pad, an ornament, and the like. In addition, the product only needs to have an aluminum layer on the surface, for example, it may be aluminum plated on the surface of a plastic base layer or laminated with an aluminum layer.

Please refer to FIG. 2 at the same time. FIG. 2 is a partially enlarged cross-sectional view showing the aluminum workpiece 1 of the present invention after anodizing.

Next, as shown in step S20, the aluminum workpiece 1 is anodized to form an oxide film layer 121 on the surface of the aluminum workpiece 1, and the porous oxidized membrane 121 forms a plurality of cells 10, wherein The opening diameter of the cells 10 is D1. In the step of anodizing the aluminum workpiece 1, the pores 10 of the aluminum workpiece 1 preferably have a pore depth of 15 to 25 micrometers (μm).

The processing parameters of the aluminum workpiece 1 for treating the aluminum workpiece are as follows: the aluminum workpiece 1 is placed in a sulfuric acid solution of 150 to 250 g/liter; the direct current voltage is 10 to 14 volts, the current is 1 to 1.5 amps, and the time is 18 to 25 minutes. .

As shown in step S30, the aluminum workpiece 1 is immersed in a pre-dyeing treatment liquid to enlarge the cells 10 of the aluminum workpiece 1 to a predetermined aperture D2, as shown in FIG. The purpose of this step is to enlarge the opening diameter D2 of the aperture of the cells 10a of the aluminum workpiece 1 by immersing the aluminum workpiece 1 in the pre-coloring treatment liquid, a preferred example in which the aperture is D2 exceeds 100 nanometers (nm) and the film layer is stabilized.

In the present embodiment, the pre-dyeing treatment liquid for immersing the aluminum workpiece 1 includes at least several pharmaceutical formulations of 50 g/liter of nitric acid at a temperature of 40 to 60 degrees Celsius. However, the present invention is not limited thereto, and for example, various acidic solutions such as sulfuric acid, etc. may be included.

The aluminum workpiece 1 is dried for the first time as shown in step S40. In the present embodiment, the aluminum workpiece 1 is dried for the first time, and may be treated in a baking manner at 100 degrees Celsius for 10 minutes. However, the present invention is not limited thereto as long as the aluminum workpiece 1 is dried.

As shown in step S50, a colorful solvent-based ink is applied to the aluminum workpiece 1, wherein the particle size D3 of the solvent-type ink is smaller than the predetermined pore diameter D2 to facilitate the entry of the ink particles C into the cells. Within 10a.

In this embodiment, the step of applying the colorful solvent-based ink to the aluminum workpiece 1 may be a multi-color printer, such as inks including four primary colors of black, blue, red, yellow, etc., and the printer The ink is preferably a solvent type ink, and the solvent type ink, as shown by the ink particles C shown in FIG. 3, preferably has a particle diameter D3 of less than 100. Nano (nm), ink is sprayed onto the aluminum workpiece 1 so that the ink 91 enters the cells 10a. As shown in Figure 4. Thereby, the present invention can very conveniently use the computer software to control the printer, and form various full-color patterns on the aluminum workpiece 1, providing a very beautiful appearance of the aluminum workpiece 1.

The aluminum workpiece 1 is dried a second time as shown in step S60. In the present embodiment, since the above-described printing uses solvent-based ink, which is volatile, the second drying of the aluminum workpiece 1 can volatilize the solvent in a naturally drying manner, thereby saving energy. However, the present invention is not limited thereto as long as the aluminum workpiece 1 is dried.

As shown in step S70, the aluminum workpiece 1 is immersed in a fixing agent 92, please refer to FIG. 5. The fixing agent 92 is intended to block the solvent type ink in the cells 10a to suppress fading under light irradiation. Further, the fixing agent 92 can prevent the ink in the cells 10a from being smudged to blur the pattern. The fixing agent for immersing the aluminum workpiece 1 may be a light resistance treatment agent to seal the solvent type ink in the cells 10a of the aluminum workpiece 1 in advance to suppress fading of the solvent type ink. One possible method is to use the light-resistant fixing agent of the Japanese Oku Corporation TACCC series.

As shown in step S80, the aluminum workpiece 1 is immersed in a hole to seal the cells 10a. The sealing agent for immersing the aluminum workpiece 1 may be a nickel sulfate-based sealing agent, and may be, for example, a sealing agent commercially available from Okuno Corporation of Japan. One possible parameter of the above sealing is that the aluminum workpiece 1 is immersed in a sealing agent having a concentration of 7 g/L at a temperature of 90 ± 5 degrees Celsius for 30 minutes.

Finally, as shown in step S90, the aluminum workpiece 1 is dried. The drying method can be performed by baking at 100 degrees Celsius for 10 minutes. However, the present invention is not limited thereto as long as the aluminum workpiece 1 is dried.

According to the above manufacturing process, an anode-processed full-color aluminum workpiece can be provided. As shown in FIG. 5, the full-color aluminum workpiece 1 includes an aluminum layer 12, which is anodized to produce an oxide film layer 121, which is oxidized. A film layer 121 is formed on the surface of the aluminum layer 12. The oxide film layer 121 includes a plurality of cells 10a, wherein the cells 10a reach A predetermined aperture D2. A colorful solvent-based ink 91 is applied to the cells 10a of the aluminum workpiece 1, wherein the solvent-type ink 91 has a molecular diameter smaller than the predetermined pore diameter D2. The fixing agent 92 is applied to the cells 10a of the aluminum workpiece 1 and blocks the solvent-based ink 91 in the cells 10a to suppress fading. A sealing agent 93 is applied to the cells 10a of the aluminum workpiece 1 and is located at the outer end of the fixing agent 92.

The feature and function of the present invention is to provide an anode processing method for a full-color workpiece, which can produce an anodized full-color aluminum workpiece, which can produce a very fine pattern of the aluminum workpiece. The invention can conveniently control the printing machine by using the computer software, rapidly forming various full-color patterns on the aluminum workpiece, and providing the aluminum workpiece 1 with a very beautiful appearance. In addition, the present invention utilizes the fixing agent 92 to seal the ink in the cells of the aluminum workpiece 1 to suppress ink fading.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

Claims (9)

An anode processing method for a full-color workpiece, comprising the steps of: (a) providing an aluminum workpiece; and (b) anodizing the aluminum workpiece to form an oxide film layer on the surface of the aluminum workpiece, the oxide film layer forming a plurality of cells (c) soaking the aluminum workpiece in a pre-dyeing treatment liquid to enlarge the aperture diameter of the pores of the aluminum workpiece to exceed 100 nanometers (nm), and to stabilize the oxide film layer; Drying the aluminum workpiece for the first time; (e) coating a colorful solvent-based ink on the aluminum workpiece, wherein the solvent-based ink has a particle diameter smaller than the pore diameter of the cells, and the solvent type is used by a printer The ink is sprayed onto the aluminum workpiece at a particle size of less than 100 nanometers (nm) to enter the cells; (f) drying the aluminum workpiece a second time; (g) soaking the aluminum workpiece in a fixed color a drug, the fixing agent is coated in the cells of the aluminum workpiece, and blocks the solvent-based ink in the cells to suppress fading; (h) soaking the aluminum workpiece in a hole to Sealing the cells, the sealing agent is located at an outer end of the fixing agent; and (i) drying the aluminum workpiece. The anode processing method of the full-color workpiece according to claim 1, wherein the processing parameters of the anode for treating the aluminum workpiece are as follows: the aluminum workpiece is placed in a sulfuric acid solution of 150 to 250 g/liter; and the direct current voltage is 10 to 14 Volt, current 1~1.5 amps, time 18~25 minutes. The method of anodizing a full-color workpiece according to claim 2, wherein the step of treating the aluminum workpiece by the anode is such that the pores of the aluminum workpiece have a pore depth of 15 to 25 μm. An anode treatment method for a full-color workpiece according to claim 1, wherein the immersion is The pre-coloring treatment liquid of the aluminum workpiece includes at least a formulation of 50 g/liter of nitric acid at a temperature of 40 to 60 degrees Celsius. The method of anodizing a full-color workpiece according to claim 1, wherein the first drying of the aluminum workpiece comprises baking in a manner of baking at 100 degrees Celsius for 10 minutes. The method of anodizing a full-color workpiece according to claim 1, wherein the second drying of the aluminum workpiece volatilizes the solvent in a naturally drying manner. The anodic processing method of the full-color workpiece according to claim 1, wherein the fixing agent for immersing the aluminum workpiece is a light-resistant treatment agent to pre-seal the solvent-based ink in the cells of the aluminum workpiece, The above solvent-based ink is suppressed from fading. The anode treatment method of the full-color workpiece according to claim 1, wherein the sealing agent for immersing the aluminum workpiece is a nickel sulfate-based sealing agent. A full-color aluminum workpiece comprising: an aluminum layer; an oxide film layer formed on a surface of the aluminum layer, the oxide film layer comprising a plurality of cells, wherein the apertures of the cells have an opening diameter exceeding 100 nm ( Nm); a colorful solvent-based ink penetrating into the cells of the aluminum workpiece, wherein the solvent-based ink has a molecular diameter of less than 100 nanometers (nm); a fixing agent deposited on the aluminum workpiece The cells are in the cells and block the solvent-based ink in the cells to suppress fading; and a porogen is deposited in the cells of the aluminum workpiece and at the outer end of the fixing agent.