CN113089045A

CN113089045A - Dyeing method, shell and terminal equipment

Info

Publication number: CN113089045A
Application number: CN202110335615.XA
Authority: CN
Inventors: 孟祥发
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-07-09

Abstract

The disclosure relates to a dyeing method, a shell and terminal equipment, wherein the method comprises the following steps: carrying out anodic oxidation treatment on a substrate, and forming an anodic oxidation layer on the surface of the substrate, wherein the anodic oxidation layer is full of nano-micropores and comprises a first area and a second area; filling nano materials in the nano micropores in the first region of the anodic oxide layer by adopting a printing process; and dyeing the anodic oxidation layer to fill pigment particles in the nano micropores in the second region of the anodic oxidation layer, wherein the color of the nano material is different from that of the pigment particles. The junction between two color zones in this disclosure is more natural and does not form white edges, serrations, wavy lines, character breaks, etc. Therefore, the whole matrix can realize multicolor effect and keep the appearance delicate.

Description

Dyeing method, shell and terminal equipment

Technical Field

The disclosure relates to the field of terminal equipment, in particular to a dyeing method, a shell and terminal equipment.

Background

With the progress of science and technology and the improvement of living standard, terminal devices such as mobile phones and tablet computers are more and more popular. In order to improve the cruising ability, the capacity of a battery in the terminal equipment is larger and larger, and the space occupied by the battery is also larger and larger, so that the thickness of the terminal equipment is larger.

In the related art, in order to provide a thin visual effect to a user, a color separation mode is generally adopted on the housing to visually weaken the characteristic of large thickness of the terminal device. However, the color separation method in the related art has the following technical problems: at the boundary of the bicolor region obtained by two times of anodic oxidation, white edges, sawteeth, wavy lines, character broken lines and the like are easy to form, and the delicacy of the appearance of the shell is influenced.

Disclosure of Invention

In order to overcome the problems in the related art, embodiments of the present disclosure provide a dyeing method, a housing and a terminal device, so as to solve the defects in the related art.

According to a first aspect of embodiments of the present disclosure, there is provided a dyeing method including:

carrying out anodic oxidation treatment on a substrate, and forming an anodic oxidation layer on the surface of the substrate, wherein the anodic oxidation layer is full of nano-micropores and comprises a first area and a second area;

filling nano materials in the nano micropores in the first region of the anodic oxide layer by adopting a printing process;

and dyeing the anodic oxidation layer to fill pigment particles in the nano micropores in the second region of the anodic oxidation layer, wherein the color of the nano material is different from that of the pigment particles.

In one embodiment, the printing process includes at least one of: transfer printing, silk-screen printing and printing.

In one embodiment, the printing process comprises:

placing a screen plate with a pattern on the surface of the anodic oxidation layer to shield the second area, wherein the pattern corresponds to the first area in shape;

printing the nano material on the surface of the screen plate so as to fill the nano micropores in the first area in a targeted manner.

In one embodiment, the method further comprises:

and sealing the nano micropores in the second area of the anodic oxidation layer to seal the pigment examples in the nano micropores.

In an embodiment, the first region comprises at least one sub-region, wherein different sub-regions are arranged at intervals.

In one embodiment, the shape and size of the nano-micropores are controlled by adjusting voltage, and the pore diameter of the nano-micropores is 15-50 nm.

In one embodiment, the method further comprises:

subjecting the substrate to at least one of the following treatments to obtain the matrix: shape processing, polishing treatment and cleaning.

According to a second aspect of the embodiments of the present disclosure, there is provided a shell prepared by using the dyeing method of any one of the above.

According to a third aspect of the embodiments of the present disclosure, there is provided a housing, including a substrate and an anodic oxidation layer disposed on a surface of the substrate, where the anodic oxidation layer is covered with nano-pores, and the anodic oxidation layer includes a first region and a second region;

the nanometer micropores of the first area are filled with nanometer materials, wherein the nanometer materials enter the nanometer micropores through a printing process;

pigment particles are filled in the nano micropores of the second area, wherein the pigment particles enter the nano micropores through a dyeing process;

the nanomaterial is a different color than the pigment particles.

In one embodiment, the pore size of the nanopores is 15-50 nm.

According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal device comprising the housing as defined in any one of the above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the method disclosed by the invention forms the integral anodic oxidation layer once, then forms at least two color effects in the first area and the second area respectively through printing and dyeing, the joint between the two color areas is more natural, and white edges, sawteeth, wavy lines, character broken lines and the like cannot be formed. Therefore, the whole substrate can realize multicolor effect, the appearance delicacy is kept, and the phenomenon that white lines appear in a bicolor area formed by two times of anodic oxidation due to the fact that the interface line is not colored due to the fact that the thickness of the anode film is different and acid is infiltrated in a shielding mode is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a flow chart illustrating a dyeing method according to an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating a post-anodization structure according to an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic diagram illustrating a post-printing structure according to an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic view of a dyed structure shown in an exemplary embodiment of the present disclosure;

FIG. 5 is a schematic illustration of a substrate after shape processing according to an exemplary embodiment of the present disclosure;

FIG. 6 is a schematic plan view after printing shown in an exemplary embodiment of the present disclosure;

fig. 7 is a schematic plan view of an exemplary embodiment of the present disclosure shown after dyeing.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In the related art, in order to provide a thin visual effect to a user, a color separation mode is generally adopted on the housing to visually weaken the characteristic of large thickness of the terminal device. In the related art, the color separation is performed in such a manner as: anodizing twice on the shell made of the set material, forming a first color on the surface of the whole shell by anodizing for the first time, etching part of a first color area, and anodizing for the second time after shielding by adopting exposure and development ink or glue, thereby realizing a bicolor visual effect.

However, in the above-described related art, there are the following technical problems: at the boundary of the bicolor region obtained by two times of anodic oxidation, due to the thickness difference of the anode film and the shielding of acid seepage, white edges, saw teeth, wavy lines, character broken lines and other problems are easy to form, and the delicacy of the appearance of the shell is influenced.

In an exemplary embodiment, as shown in fig. 1, the present embodiment proposes a dyeing method, which may specifically include the following steps:

and S110, carrying out anodic oxidation treatment on the substrate to form an anodic oxidation layer on the surface of the substrate.

The base 10 may be a substrate made of metal, such as an aluminum alloy substrate. After the surface of the substrate 10 is anodized, as shown in fig. 2, an anodized layer 100 with micropores 101 is formed on the surface of the substrate 10. The shape and size of the nano-pores 101 can be controlled by adjusting the voltage, for example, the pore diameter of the nano-pores 101 can be 15nm to 50 nm.

In this step, as shown in fig. 3, the anodized layer 100 includes a first region 110 and a second region 120. The first region 110 and the second region 120 may, for example, be different local regions of the surface of the substrate 10, in order to achieve different colors in the first region 110 and the second region 120 in the subsequent processing.

After this step, the substrate 10 may be subjected to a drying process to dry the moisture of the substrate 10. The drying temperature can be 60-80 ℃, and the drying time can be 45-120 minutes. Step S120 is performed after the drying process.

And S120, filling nano materials in the nano micropores in the first area of the anodic oxidation layer by adopting a printing process.

The printing process may be, for example, pad printing, silk-screen printing, printing or the like, and the printing process may only print the predetermined shape or area. The nanomaterial may be, for example, a colorless, monochromatic, or polychromatic (colored) polymer nanomaterial, for example, butyl glycolate, 1-methoxy-2-propanol, or other nanopigments are used.

Taking a silk-screen printing mode as an example: placing the screen plate with the pattern on the surface of the anodic oxide layer to shield the second area, wherein the pattern can correspond to the shape of the first area; and printing the nano material on the surface of the screen plate so as to fill the nano micropores in the first area in a targeted manner. The screen plate can realize the shielding effect in the area except the area corresponding to the first area, and can print in the position corresponding to the first area. And filling the nano material into the nano micropores in the first region by using a screen printing scraper (for applying pressure) and the adsorption force of negative ions in the polymer nano material and positive ions of the metal material.

In this step, as shown in fig. 3 to 4, nanoparticles may be filled in the nano-pores 101 of the first region 110 through a printing process, so that the color of the nano-material 20 is presented in the first region 110, and the printed form is as shown in fig. 3 or fig. 6. The thickness of the printing may be, for example, 1um to 8um, i.e., the thickness of the nanoparticles extending in the nano-pores 101 is 1um to 8 um.

The color exhibited by the first region 110 may be, for example, a plurality of colors depending on the color of the nanomaterial 20.

In one example, to render the first region 110 multi-colored, multi-colored nanomaterials 20 may be employed. The polychromatic nanomaterial 20 may be, for example: the nano-materials 20 of two colors are mixed in advance to form the multi-color nano-material 20. Printing with the multi-colored nanomaterial 20 causes the first region 110 to appear multi-colored.

In another example, to make the first region 110 appear multi-color, the nano-materials 20 with different colors may be printed in several times. Such as: a first portion of the first region 110 is printed with a first color of nanomaterial 20 and a second portion of the first region 110 is printed with a second color of nanomaterial 20. Thereby, a multicolor effect is achieved in the first region 110.

After this step, the printed substrate 10 may be subjected to a baking treatment under the following conditions: 50-80 ℃ for 10-30 minutes. Step S130 is performed after the baking process.

And S130, dyeing the anodic oxidation layer to fill the nanometer micropores in the second area of the anodic oxidation layer with pigment particles.

Wherein the color of the nanomaterial 20 is different from the color of the pigment particles 30.

In this step, the entire anodized layer is further dyed in addition to the printing in step S120. As shown in fig. 3 to 4, since the nano-pores 101 in the first region 110 are filled with the nanoparticles, the pigment particles cannot be refilled into the pores of the first region, and even if some nanoparticles are attached, only the nanoparticles are attached to the surface of the filled nanoparticles, and the nanoparticles are not as firm as the pores directly dyed, and have a step difference (height difference) in height with the pigment of the second region, and are easily peeled off (first contacting with the grinding wheel) during polishing, and are separated from the nanoparticles, so the pigment particles 30 are filled into the nano-pores in the second region 120, and are dyed or sealed, so that the color of the pigment particles 30 appears in the second region 120. The dyed form is shown in FIG. 4 or FIG. 7.

In addition, after the second region 120 is dyed, the nano-pores in the second region may be sealed to enclose the pigment examples in the nano-pores. Thereby avoiding the second area 120 from fading, discoloring, etc. during use.

In the embodiment of the present disclosure, the integral anodized layer is formed once through the step S110, and then at least two color effects are formed in the first region 110 and the second region 120 respectively through the printing of the step S120 and the dyeing of the step S130, so that the connection between the two color regions is more natural, and white edges, saw teeth, wavy lines, broken character lines, and the like are not formed. Therefore, the whole basal body 10 can realize multicolor effect, the appearance delicacy is kept, and the phenomenon that the interface line is not colored and white lines appear in a double-color area formed by two times of anodic oxidation due to the thickness difference of the anode film and the shielding of the acid seepage is avoided.

In an exemplary embodiment, the first region may be disposed in various manners. In this embodiment, the first region includes at least one sub-region.

In one example, the first region comprises one sub-region. After printing, a monochrome, colorless or multicolor effect can be formed in the sub-area and distinguished from the color of the second area.

In another example, the first region includes two or more sub-regions, and different sub-regions are spaced apart. After printing, a single color, colorless or multicolor effect can be formed in a plurality of spaced sub-areas respectively. In combination with the color of the second area, a multi-colored visual effect is further achieved.

In this example, the spacing region between the different sub-regions, which is a part belonging to the second region, may be dyed to form a color different from that of the sub-regions.

In an exemplary embodiment, before step S110, the dyeing method of the present embodiment further includes the steps of:

s100, performing at least one of the following treatments on the base material to obtain a matrix: shape processing, polishing treatment and cleaning.

The substrate may be a metal material, for example. The following description will be made by taking an aluminum alloy base material as an example:

in this step, the aluminum alloy base material may be first subjected to shape processing. CNC (numerical control mechanical precision machining) processing is carried out on the base material so as to meet the appearance requirement of product design. For example, when the base is used to form a housing for a terminal device, the substrate may be CNC machined to form the housing as shown in fig. 5.

After the shape is processed, the aluminum alloy matrix with the preset shape can be polished, so that the surface of the matrix can achieve the highlight effect.

After the polishing treatment, the aluminum alloy substrate may be cleaned. The cleaned substrate is ready for use and is ready for step S110.

In an exemplary embodiment, after step S130, the dyeing method of the present embodiment further includes the steps of:

and S140, polishing the anodic oxide layer.

Wherein, after the printing of step S120 and the dyeing of step S130, the nano-pores of the anodic oxide layer are filled and sealed by the nano-material 20 or the pigment particles 30.

In this step, the substrate after anodic oxidation hole sealing can be polished by using a cloth wheel and matching with polishing wax (or polishing solution).

The embodiment is used for removing the oxidation floating dust on the surface of the anodic oxidation layer or the substrate and the redundant nano coating outside the nano micropores, so that the surface of the bicolor or multicolor substrate has a bright effect.

In an exemplary embodiment, the present disclosure also provides a shell, which is prepared by using any one of the above dyeing methods. The housing can be used, for example, in a terminal.

In an exemplary embodiment, the embodiment of the present disclosure further provides a housing, as shown in fig. 2 to 7, including a substrate 10 and an anodized layer 100 disposed on a surface of the substrate 10, where the anodized layer 100 is covered with nano-pores 101, and the anodized layer 100 includes a first region 110 and a second region 120.

In this embodiment, the nano-pores 101 of the first region 110 are filled with the nano-material 20, wherein the nano-material 20 enters the nano-pores 101 through a printing process. The nano-pores of the second region 120 are filled with pigment particles 30, wherein the pigment particles 30 enter the nano-pores 101 through a dyeing process. The nanomaterial 20 is a different color than the pigment particles 30.

In the embodiment of the disclosure, the integral anodic oxidation layer can be formed at one time, then at least two color effects are respectively formed in the first area and the second area through printing and dyeing, the connection between the two color areas is more natural, and white edges, sawteeth, wavy lines, character broken lines and the like cannot be formed. Therefore, the whole matrix can realize multicolor effect and keep the appearance delicate.

In one exemplary embodiment, the nanomaterial is a colorless nanomaterial or a colored nanomaterial.

In this embodiment, the color nano material is a single-color nano material or a multi-color nano material.

In this embodiment, the first region includes at least one sub-region, wherein different sub-regions are arranged at intervals.

In this example, the pore size of the nano-micropores is 15 to 50 nm.

In an exemplary embodiment, the present disclosure also provides a terminal device including the housing in the foregoing embodiments. In this embodiment, the housing of the terminal device has a multi-color effect, and can provide a light and thin visual effect for a user.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method of dyeing, comprising:

2. Dyeing process according to claim 1, characterized in that the printing process comprises at least one of the following: transfer printing, silk-screen printing and printing.

3. Dyeing process according to claim 1 or 2, characterized in that the printing process comprises:

4. The dyeing method according to claim 1, characterized in that it further comprises:

and sealing the nano micropores in the second area of the anodic oxidation layer to seal the pigment particles in the nano micropores.

5. Dyeing process according to claim 1, characterized in that the first zone comprises at least one sub-zone, wherein different sub-zones are arranged at intervals.

6. The dyeing method according to claim 1, wherein the shape and size of the nano-pores are controlled by adjusting the voltage, and the pore diameter of the nano-pores is 15 to 50 nm.

7. The dyeing method according to claim 1, characterized in that it further comprises:

8. A shell, characterized in that it is obtained by using the dyeing process according to any one of claims 1 to 7.

9. The shell is characterized by comprising a substrate and an anodic oxidation layer arranged on the surface of the substrate, wherein the anodic oxidation layer is full of nano micropores and comprises a first area and a second area;

the nanomaterial is a different color than the pigment particles.

10. The housing of claim 9, wherein the first region comprises at least one sub-region, wherein different sub-regions are spaced apart.

11. The housing of claim 9, wherein the nanopores have a pore size of 15-50 nm.

12. A terminal device, characterized in that it comprises a casing according to any one of claims 8 to 11.