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CN111318437A - Shell surface treatment method and electronic equipment - Google Patents

Shell surface treatment method and electronic equipment Download PDF

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Publication number
CN111318437A
CN111318437A CN201811530365.XA CN201811530365A CN111318437A CN 111318437 A CN111318437 A CN 111318437A CN 201811530365 A CN201811530365 A CN 201811530365A CN 111318437 A CN111318437 A CN 111318437A
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CN
China
Prior art keywords
layer
hardening
optical film
sclerosis layer
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811530365.XA
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Chinese (zh)
Inventor
刘兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
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Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN201811530365.XA priority Critical patent/CN111318437A/en
Publication of CN111318437A publication Critical patent/CN111318437A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50Multilayers
    • B05D7/56Three layers or more
    • B05D7/58No clear coat specified

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The present disclosure relates to a housing surface treatment method and an electronic device, the method including: the printing opacity casing main part of machine-shaping plastic spray hardening priming paint on at least one in casing main part's medial surface and the lateral surface to the stoving forms first sclerosis layer spray hardening liquid on the first sclerosis layer forms second sclerosis layer with the stoving. Spray hardening primer process operation has directly promoted the adhesive force on first sclerosis layer and casing main part surface, has avoided using extra corrosive solvent between casing main part and first sclerosis layer, and then has avoided corrosive solvent to remain the condition that produces the rainbow line. The second sclerosis layer of spraying on first sclerosis layer has increased sclerosis layer thickness to further reduce the possibility that the rainbow line produced, promoted the transmittance, the visual effect and the processing qualification rate of casing.

Description

Shell surface treatment method and electronic equipment
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a method for surface treatment of a housing and an electronic device.
Background
In the related art, the transparent plastic is scattered due to the uneven molecular structure of the surface of the plastic during the high temperature process of dip-coating hardening treatment, or the so-called "rainbow-marks" are formed on the surface of the plastic due to the traces left by the volatilization of the solvent oil. The rainbow patterns seriously affect the surface appearance of the plastic products used for the electronic equipment shell. Therefore, how to eliminate the rainbow patterns on the surface of the plastic housing becomes a hot issue of research in the current field.
Disclosure of Invention
The disclosure provides a shell surface treatment method and electronic equipment, which are used for avoiding the influence of rainbow patterns on the surface of a shell and improving the appearance effect of the shell.
According to a first aspect of the embodiments of the present disclosure, there is provided a casing surface treatment method applied to an electronic device casing, the method including:
the plastic light-transmitting shell body is processed and molded and comprises an outer side face and an inner side face;
spraying hardening primer on at least one of the inner side surface and the outer side surface to dry to form a first hardening layer;
and spraying hardening liquid on the first hardening layer to dry and form a second hardening layer.
Optionally, after spraying a hardening liquid on the first hardened layer to dry and form a second hardened layer, the method further includes:
and depositing an optical film layer on the second hardened layer.
Optionally, the optical film layer includes a multilayer optical film, and the material of the optical film includes SiO2、TiO2、Ni-Cr、Al2O3And In.
Optionally, after depositing the optical film layer on the second hardened layer, the method further includes:
an additional colored layer is disposed on the optical film layer.
Optionally, the disposing a color additional layer on the optical film layer includes:
and spraying color paint on the optical film layer to form a color additional layer.
Optionally, the hardening primer comprises a UV paint.
Optionally, the thickness of the first hardened layer ranges from 3 to 18 microns.
Optionally, the hardening liquid comprises a UV hardening liquid.
Optionally, the thickness of the second hardened layer ranges from 10 to 30 microns.
According to a second aspect of the embodiments of the present disclosure, an electronic apparatus is provided, which includes an apparatus main body and a housing, and the housing is processed by the housing surface processing method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
as can be seen from the above embodiments, the present disclosure forms the first hardened layer and the second hardened layer on the housing by spraying the hardening primer and the hardening liquid on the inner surface and/or the outer surface of the light-transmissive housing body. Spray hardening primer process operation has directly promoted the adhesive force on first sclerosis layer and casing main part surface, has avoided using extra corrosive solvent between casing main part and first sclerosis layer, and then has avoided corrosive solvent to remain the condition that produces the rainbow line. In addition, the second sclerosis layer of spraying on first sclerosis layer has increased sclerosis layer thickness to further reduce the possibility that the rainbow line produced, promoted the transmittance, the visual effect and the processing qualification rate of casing.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a flow chart of a method of surface treatment of a housing in an exemplary embodiment of the disclosure;
FIG. 2 is a flow chart of a method of surface treatment of a housing in another exemplary embodiment of the present disclosure;
fig. 3 is a schematic partial structure diagram of an electronic device housing according to an exemplary embodiment of the disclosure.
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 embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application 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 application. 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, the transparent plastic is scattered due to the uneven molecular structure of the surface of the plastic during the high temperature process of dip-coating hardening treatment, or the so-called "rainbow-marks" are formed on the surface of the plastic due to the traces left by the volatilization of the solvent oil. The rainbow patterns seriously affect the surface appearance of the plastic products used for the electronic equipment shell.
Fig. 1 is a flow chart of a shell surface treatment method in an exemplary embodiment of the present disclosure. As shown in fig. 1, the method for processing the surface of the housing is applied to the housing of the electronic device, and the method can be realized by the following steps:
in step S101, a plastic light-transmitting housing body is formed, the housing body including an outer side and an inner side.
The plastic light-transmitting shell body can be processed and formed by adopting an injection molding process so as to reduce the process complexity and the cost. Alternatively, the plastic light-transmitting housing body may be formed by other processing techniques, which is not limited in this disclosure. The light transmittance of the light-transmissive housing body may be completely light-transmissive, and may be set to any light transmittance between opaque and completely light-transmissive, which is not limited by the present disclosure. The completely transparent shell body can realize a relatively transparent appearance effect, and the attractiveness of the shell is improved; and when the light transmittance is between the light-tight property and the complete light transmittance, the shell can conveniently realize appearance effects such as gradual change, transition and the like.
In addition, the plastic material with the model of PC1414T can be selected as the plastic, and other types of plastics can be selected according to the requirement of the housing, which is not limited in this disclosure.
In step S102, a hardening primer is sprayed on at least one of the inner side surface and the outer side surface to be dried to form a first hardened layer.
The hardening primer may be sprayed on the inner side surface or the outer side surface separately, or may be sprayed on the outer side surface and the inner side surface simultaneously to increase the hardening effect of the shell body, which is not limited in this disclosure.
It should be noted that the hardening primer may be an UV (Ultraviolet Curing Paint, also called photo-initiation Paint, photo-Curing Paint) Paint. The UV paint promotes the initiator to decompose under the irradiation of ultraviolet light to generate free radicals, initiates resin reaction, instantly cures to form a film, and has a better environment-friendly effect. In addition, according to specific requirements, the thickness range of the first hardening layer comprises 3-18 microns, and a foundation is laid for spraying of a second hardening layer through the thin first hardening layer, so that the adhesive force of the second hardening layer and the overall hardening effect of the shell body are improved.
In step S103, a hardening liquid is sprayed on the first hardened layer to be dried to form a second hardened layer.
Wherein the hardening liquid comprises a UV hardening liquid. Similarly, the UV hardening liquid promotes the initiator to decompose under the irradiation of ultraviolet light to generate free radicals, initiates resin reaction, instantly cures to form a film, and has a better environment-friendly effect. According to specific requirements, the thickness range of the second hardened layer comprises 10-30 microns, the whole thickness of the hardened layer is increased through the second hardened layer which covers the first hardened layer and is thicker than the first hardened layer, and the possibility of rainbow patterns is reduced.
And spraying hardening primer and hardening liquid through the inner surface and/or the outer surface of the light-transmitting shell body to form a first hardening layer and a second hardening layer on the shell. Spray hardening primer process operation has directly promoted the adhesive force on first sclerosis layer and casing main part surface, has avoided using extra corrosive solvent between casing main part and first sclerosis layer, and then has avoided corrosive solvent to remain the condition that produces the rainbow line. The second sclerosis layer of spraying on first sclerosis layer has increased sclerosis layer thickness to further reduce the possibility that the rainbow line produced, promoted the transmittance, the visual effect and the processing qualification rate of casing.
It should be noted that, in order to further avoid the appearance of rainbow line, can further promote the thickness on sclerosis layer, be promptly for casing main part spraying number of piles is greater than two-layer sclerosis layer, this disclosure does not restrict the quantity on sclerosis layer.
Fig. 2 is a flowchart of a casing surface treatment method in another exemplary embodiment of the present disclosure. As shown in fig. 2, the method for processing the surface of the housing is applied to the housing of the electronic device, and the method can be realized by the following steps:
in step S201, a plastic light-transmitting housing body is formed, and the housing body includes an outer side and an inner side.
The plastic light-transmitting shell body can be processed and formed by adopting an injection molding process so as to reduce the process complexity and the cost. Alternatively, the plastic light-transmitting housing body may be formed by other processing techniques, which is not limited in this disclosure. The light transmittance of the light-transmissive housing body may be completely light-transmissive, and may be set to any light transmittance between opaque and completely light-transmissive, which is not limited by the present disclosure. The completely transparent shell body can realize a relatively transparent appearance effect, and the attractiveness of the shell is improved; and when the light transmittance is between the light-tight property and the complete light transmittance, the shell can conveniently realize appearance effects such as gradual change, transition and the like.
In step S202, a hardening primer is sprayed on at least one of the inner side surface and the outer side surface to be dried to form a first hardened layer.
The hardening primer may be sprayed on the inner side surface or the outer side surface separately, or may be sprayed on the outer side surface and the inner side surface simultaneously to increase the hardening effect of the shell body, which is not limited in this disclosure.
It should be noted that the hardening primer may be an UV (Ultraviolet Curing Paint, also called photo-initiation Paint, photo-Curing Paint) Paint. The UV paint promotes the initiator to decompose under the irradiation of ultraviolet light to generate free radicals, initiates resin reaction, instantly cures to form a film, and has a better environment-friendly effect. In addition, according to specific requirements, the thickness range of the first hardening layer comprises 3-18 microns, and a foundation is laid for spraying of a second hardening layer through the thin first hardening layer, so that the adhesive force of the second hardening layer and the overall hardening effect of the shell body are improved.
In step S203, a hardening liquid is sprayed on the first hardened layer to be dried to form a second hardened layer.
Wherein the hardening liquid comprises a UV hardening liquid. Similarly, the UV hardening liquid promotes the initiator to decompose under the irradiation of ultraviolet light to generate free radicals, initiates resin reaction, instantly cures to form a film, and has a better environment-friendly effect. According to specific requirements, the thickness range of the second hardened layer comprises 10-30 microns, the whole thickness of the hardened layer is increased through the second hardened layer which covers the first hardened layer and is thicker than the first hardened layer, and the possibility of rainbow patterns is reduced.
In step S204, an optical film layer is deposited on the second hardened layer.
The optical film layer comprises a multilayer optical film, and the optical film is made of SiO2、TiO2、Ni-Cr、Al2O3And In. For example, when using optical films in a stacked arrangement: SiO 22/TiO2/Ni-Cr/Al2O3/SiO2/TiO2Can make the shell present dark rim of a piece of cloth, adopt the optical film SiO that the range upon range of sets2/TiO2/In/Al2O3/SiO2/TiO2The casing can be made to assume a light level of the image-bearing color. It should be noted that the material and thickness of the optical film layer included in the optical film layer may be set according to specific requirements, which is not limited in the present disclosure.
In step S205, a color additional layer is disposed on the optical film layer.
In order to improve the richness and diversity of the shell color, a color additional layer can be further added on the optical film layer. The manner of disposing the color additional layer on the optical film layer may be: and spraying color paint on the optical film layer to form a color additional layer. It should be noted that the color paint may be red, yellow, blue, green, etc., or may be black paint, and the disclosure does not limit the specific color of the color additional layer.
The present disclosure further provides an electronic device, which includes a device main body and a housing, wherein the housing is processed by the housing surface treatment method. The casing is assembled in the equipment main part, has avoided the electronic equipment casing to carry the rainbow line, has promoted electronic equipment's whole aesthetic property and user experience.
As shown in fig. 3, the housing 1 includes a housing body 11, and a first hardened layer 12 and a second hardened layer 13 disposed on an inner side and/or an outer side of the housing body 11. A hardening primer and a hardening liquid are sprayed through the inner surface and/or the outer surface of the light-transmitting housing body 11 to form two hardened layers, i.e., a first hardened layer 12 and a second hardened layer 13, on the housing 1. Spray hardening primer process operation has directly promoted the adhesive force on first sclerosis layer 12 and casing main part 11 surface, has avoided using extra corrosive solvent between casing main part 11 and first sclerosis layer 12, and then has avoided corrosive solvent to remain the condition that produces the rainbow line. In addition, the second hardened layer 13 sprayed on the first hardened layer 12 increases the thickness of the hardened layer, thereby further reducing the possibility of rainbow patterns, and improving the transmittance, visual effect and processing yield of the shell 1.
Wherein, the housing 1 may further include an optical film layer 14 and a color additional layer 15 disposed on the second hardened layer 13 to improve the color richness and diversity of the housing 1. The arrangement of the optical film layer 14 and the color additional layer 15 is described in the above embodiments of the method, and will not be described herein. In addition, a plurality of hardened layers with the number of layers greater than two may be sprayed to the housing body 11, and the number of hardened layers is not limited by the present disclosure. Spraying multiple hardened layers to the housing body 11 can further increase the thickness of the hardened layers, thereby further avoiding the occurrence of rainbow marks.
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 (10)

1. A shell surface treatment method is characterized by being applied to an electronic equipment shell, and comprises the following steps:
the plastic light-transmitting shell body is processed and molded and comprises an outer side face and an inner side face;
spraying hardening primer on at least one of the inner side surface and the outer side surface to dry to form a first hardening layer;
and spraying hardening liquid on the first hardening layer to dry and form a second hardening layer.
2. The method according to claim 1, wherein after spraying the hardening liquid on the first hardened layer to dry and form a second hardened layer, further comprising:
and depositing an optical film layer on the second hardened layer.
3. The method of claim 2, wherein the optical film layer comprises a multilayer optical film, and the material of the optical film comprises SiO2、TiO2、Ni-Cr、Al2O3And In.
4. The method of claim 2, further comprising, after depositing an optical film layer over the second hardened layer:
an additional colored layer is disposed on the optical film layer.
5. The method of claim 4, wherein disposing the additional colored layer on the optical film layer comprises:
and spraying color paint on the optical film layer to form a color additional layer.
6. The method of claim 1, wherein the hardening primer comprises a UV paint.
7. The method according to claim 1, wherein the thickness of the first hardened layer is in a range including 3-18 microns.
8. The method of claim 1, wherein the hardening fluid comprises a UV hardening fluid.
9. The method according to claim 1, wherein the second hardened layer has a thickness in a range including 10-30 microns.
10. An electronic device comprising a device main body and a housing, wherein the housing is processed by the housing surface treatment method according to any one of claims 1 to 9.
CN201811530365.XA 2018-12-14 2018-12-14 Shell surface treatment method and electronic equipment Pending CN111318437A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201811530365.XA CN111318437A (en) 2018-12-14 2018-12-14 Shell surface treatment method and electronic equipment

Publications (1)

Publication Number Publication Date
CN111318437A true CN111318437A (en) 2020-06-23

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104002531A (en) * 2014-05-21 2014-08-27 东莞市纳利光学材料有限公司 Double-surface-hardened high-hardness protective film with not obvious newton rings and preparation method thereof
CN204154917U (en) * 2014-11-03 2015-02-11 深圳市金凯新瑞光电股份有限公司 A kind of hardened layer of ultraviolet light polymerization and optical hardening film
CN107458058A (en) * 2017-08-31 2017-12-12 维沃移动通信有限公司 The preparation method and terminal device shell, terminal device of terminal device shell
CN107949203A (en) * 2017-11-07 2018-04-20 北京小米移动软件有限公司 Preparation method, housing and the electronic equipment of housing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104002531A (en) * 2014-05-21 2014-08-27 东莞市纳利光学材料有限公司 Double-surface-hardened high-hardness protective film with not obvious newton rings and preparation method thereof
CN204154917U (en) * 2014-11-03 2015-02-11 深圳市金凯新瑞光电股份有限公司 A kind of hardened layer of ultraviolet light polymerization and optical hardening film
CN107458058A (en) * 2017-08-31 2017-12-12 维沃移动通信有限公司 The preparation method and terminal device shell, terminal device of terminal device shell
CN107949203A (en) * 2017-11-07 2018-04-20 北京小米移动软件有限公司 Preparation method, housing and the electronic equipment of housing

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Application publication date: 20200623