CN114268681A - Preparation method of mobile phone back plate with photosensitive color-changing pattern - Google Patents
Preparation method of mobile phone back plate with photosensitive color-changing pattern Download PDFInfo
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- CN114268681A CN114268681A CN202111581115.0A CN202111581115A CN114268681A CN 114268681 A CN114268681 A CN 114268681A CN 202111581115 A CN202111581115 A CN 202111581115A CN 114268681 A CN114268681 A CN 114268681A
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Abstract
The invention discloses a preparation method of a mobile phone back plate with a photosensitive color-changing pattern, which comprises the following steps: a preparation method of a mobile phone backboard with a photosensitive color-changing pattern is characterized by comprising the following steps: s1, cutting a base material to manufacture a formed sheet: s2, processing a formed sheet; s3, surface treatment; s4, processing a photosensitive color-changing pattern; s5, texture effect processing; s6, treating a hardening layer; s7, electroplating layer treatment; s8, coating a bottom layer; and S9, secondary fine engraving to manufacture the mobile phone back plate with the photosensitive color-changing pattern. According to the mobile phone back plate, the photosensitive color-changing pattern layer is arranged, so that the mobile phone back plate can change color under ultraviolet irradiation, the photosensitive ink patterns on the mobile phone back plate can present visual effects of different colors indoors and outdoors, the visual fatigue of users is reduced, the patterns can show a color-changing effect with metallic luster by combining with the electroplated layer, the appearance display effect is improved, and the ornamental value is greatly improved.
Description
Technical Field
The invention relates to the technical field of preparation of mobile phone back plates, in particular to a preparation method of a mobile phone back plate with a photosensitive color-changing pattern.
Background
In daily life, mobile phones have become an indispensable communication tool for people, and with the continuous updating and upgrading of mobile phones, the requirements of people on mobile phones are more and more diversified.
The mobile phone back plate is used as one of basic accessories for protecting a mobile phone battery, and in order to meet the requirement of a user on the aesthetic appearance of the mobile phone back plate, a merchant continuously develops and produces a new mobile phone back plate. Moreover, the existing mobile phone back plate has a common pattern appearance and a single color, the color of the pattern of the mobile phone back plate cannot be changed according to the external environment, visual fatigue is easy to generate for users, and a changed appearance experience cannot be provided for the users; and the fingerprint is easily adhered to the surface of the existing mobile phone backboard, the existing mode is that the adhesion of fingerprint grease is placed by sticking a fingerprint-proof film, and the fingerprint-proof film can influence the display effect of the patterns of the mobile phone backboard, influence the appearance effect of the mobile phone backboard and fail to meet the requirement of a user on the appearance effect of the mobile phone backboard.
Disclosure of Invention
The invention provides a preparation method of a mobile phone backboard with a photosensitive color-changing pattern aiming at the defects of the prior art.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a preparation method of a mobile phone backboard with a photosensitive color-changing pattern comprises the following steps:
s1, cutting a base material to manufacture a formed sheet: cutting the composite base material through cutting equipment to obtain a formed sheet required by the required mobile phone back panel;
s2, processing of a formed sheet: carrying out hole site processing and edge burr polishing on the molded sheet by adopting CNC polishing equipment, carrying out hot bending molding on the molded sheet by adopting a composite base material hot bending machine after polishing, heating and softening the molded sheet at 80 ℃, 100 ℃, 200 ℃, 300 ℃ and 400 ℃ in sequence during hot bending molding, then carrying out downward hot pressing micro deformation for many times at 500 ℃, and finally carrying out downward hot pressing molding for many times at 680 ℃ to obtain a 3D cambered surface to form a semi-finished product of the backboard sheet;
s3, surface treatment: sequentially polishing and cleaning the surface of the semi-finished product of the mobile phone back plate, and then engraving patterns by using engraving equipment to form a blank area and a pattern area on the surface of the semi-finished product of the mobile phone back plate, wherein the engraving equipment is used for engraving the patterns in the pattern area, and secondary cleaning is performed after the patterns are engraved to obtain a back plate sheet finished product;
s4, photosensitive color-changing pattern treatment: preparing photosensitive color-changing ink, adding photosensitive color-changing powder into the pattern ink, stirring by using stirring equipment to fully mix particles of the photosensitive color-changing powder and the pattern ink to form the photosensitive color-changing ink, smearing the photosensitive color-changing ink on the surface of a pattern and smearing transparent ink on a blank area outside the pattern area by using plane printing equipment, and then solidifying to form a photosensitive color-changing pattern layer;
s5, texture effect processing: preparing UV light-curing ink, printing the UV light-curing ink on the surface of a blank area of the photosensitive color-changing pattern layer by adopting a UV printing technology, and putting a backboard sheet finished product into the UV light-curing equipment to form a texture layer after printing;
s6, hardening layer treatment: wiping and cleaning the surface of the texture layer, evaporating a layer of optically transparent hardening liquid on the surface of the texture layer by an optical nano technology, and then curing to form a hardening layer;
s7, electroplating layer treatment: carrying out optical electroplating on the bottom surface of the back plate sheet finished product by adopting an electron gun coating technology, and forming an electroplated layer after the electroplating is finished;
s8, priming treatment: preparing a base coating solution, spraying the base coating solution to the bottom surface of the electroplated layer through spraying equipment, and curing to form a base coating layer after spraying is finished;
s9, secondary fine engraving is carried out to manufacture the mobile phone back plate with the photosensitive color-changing pattern: and carrying out secondary fine engraving on the back plate sheet finished product by adopting CNC equipment, removing redundant impurities and bulges on the hole site and the edge of the back plate sheet finished product, and then cleaning to obtain the mobile phone back plate finished product with the photosensitive color-changing pattern.
In a further improvement, the substrate is a transparent PMMA substrate, and the thickness of the substrate is 0.5 mm.
In a further improvement, the thickness of the photosensitive color-changing pattern layer is 1-3 μm.
In a further improvement, the thickness of the texture layer is 110-18 μm.
In a further improvement, the thickness of the hardened layer is 0.2-1 mm.
The further improvement is that the thickness of the electroplated layer is 40-180 nm.
In a further improvement, the thickness of the bottom coating layer is 25-35 μm.
In a further improvement, an AF anti-fingerprint ink layer is arranged on the surface of the hardening layer, and the thickness of the AF anti-fingerprint ink layer is 20 microns.
The photochromic ink is further improved, and the photochromic powder in the photochromic ink comprises 50-65 parts of polyol, 8-12 parts of organic photochromic material microcapsules, 5-13 parts of a binder, 0-2 parts of zinc salicylate and 0-5 parts of an auxiliary agent.
The stirring speed of the stirring equipment is 2000-6000 r/min, and the stirring time is 5-15 min.
The invention has the beneficial effects that: according to the mobile phone back plate, the photosensitive color-changing pattern layer is arranged, so that the mobile phone back plate can change color under ultraviolet irradiation, the photosensitive ink patterns on the mobile phone back plate can present visual effects with different colors indoors and outdoors, the visual fatigue of users is reduced, the patterns can show the color-changing effect with metallic luster by combining with the electroplated layer, the appearance display effect is improved, and the ornamental value is greatly improved; the hardened layer and the fingerprint prevention layer are arranged to improve the wear resistance and fingerprint prevention of the mobile phone back plate, prevent scratches or fingerprint grease from influencing the appearance display of the mobile phone back plate, and ensure the appearance display effect of the mobile phone back plate; the preparation method of the mobile phone backboard with the photosensitive color-changing pattern provided by the invention has the advantages of simple overall process, good forming effect, low forming cost, easiness in popularization and application and higher practical value.
The invention is further described with reference to the following detailed description and accompanying drawings.
Drawings
Fig. 1 is a schematic flow chart of a method for manufacturing a mobile phone back plate with a photochromic pattern according to this embodiment.
Detailed Description
The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.
In an embodiment, referring to fig. 1, a method for manufacturing a mobile phone back plate with a photochromic pattern includes the following steps:
s1, cutting a base material to manufacture a formed sheet: cutting the composite base material through cutting equipment to obtain a formed sheet required by the required mobile phone back panel;
s2, processing of a formed sheet: carrying out hole site processing and edge burr polishing on the molded sheet by adopting CNC polishing equipment, carrying out hot bending molding on the molded sheet by adopting a composite base material hot bending machine after polishing, heating and softening the molded sheet at 80 ℃, 100 ℃, 200 ℃, 300 ℃ and 400 ℃ in sequence during hot bending molding, then carrying out downward hot pressing micro deformation for many times at 500 ℃, and finally carrying out downward hot pressing molding for many times at 680 ℃ to obtain a 3D cambered surface to form a semi-finished product of the backboard sheet;
s3, surface treatment: sequentially polishing and cleaning the surface of the semi-finished product of the mobile phone back plate, and then engraving patterns by using engraving equipment to form a blank area and a pattern area on the surface of the semi-finished product of the mobile phone back plate, wherein the engraving equipment is used for engraving the patterns in the pattern area, and secondary cleaning is performed after the patterns are engraved to obtain a back plate sheet finished product;
s4, photosensitive color-changing pattern treatment: preparing photosensitive color-changing ink, adding photosensitive color-changing powder into the pattern ink, stirring by using stirring equipment to fully mix particles of the photosensitive color-changing powder and the pattern ink to form the photosensitive color-changing ink, smearing the photosensitive color-changing ink on the surface of a pattern and smearing transparent ink on a blank area outside the pattern area by using plane printing equipment, and then solidifying to form a photosensitive color-changing pattern layer;
s5, texture effect processing: preparing UV light-curing ink, printing the UV light-curing ink on the surface of a blank area of the photosensitive color-changing pattern layer by adopting a UV printing technology, and putting a backboard sheet finished product into the UV light-curing equipment to form a texture layer after printing;
s6, hardening layer treatment: wiping and cleaning the surface of the texture layer, evaporating a layer of optically transparent hardening liquid on the surface of the texture layer by an optical nano technology, and then curing to form a hardening layer;
s7, electroplating layer treatment: carrying out optical electroplating on the bottom surface of the back plate sheet finished product by adopting an electron gun coating technology, and forming an electroplated layer after the electroplating is finished;
s8, priming treatment: preparing a base coating solution, spraying the base coating solution to the bottom surface of the electroplated layer through spraying equipment, and curing to form a base coating layer after spraying is finished;
s9, secondary fine engraving is carried out to manufacture the mobile phone back plate with the photosensitive color-changing pattern: and carrying out secondary fine engraving on the back plate sheet finished product by adopting CNC equipment, removing redundant impurities and bulges on the hole site and the edge of the back plate sheet finished product, and then cleaning to obtain the mobile phone back plate finished product with the photosensitive color-changing pattern.
The base material is a transparent PMMA base material, and the thickness of the base material is 0.5 mm.
The thickness of the photosensitive color-changing pattern layer is 1-3 mu m.
The thickness of the texture layer is 110-18 μm.
The thickness of the hardening layer is 0.2-1 mm.
The thickness of the electroplated layer is 40-180 nm.
The thickness of the bottom coating layer is 25-35 μm.
The surface of sclerosis layer is equipped with AF and prevents fingerprint printing ink layer, AF prevents fingerprint printing ink layer's thickness is 20 mu m.
The photochromic powder in the photochromic ink comprises 50-65 parts of polyol, 8-12 parts of organic photochromic material microcapsules, 5-13 parts of a binder, 0-2 parts of zinc salicylate and 0-5 parts of an auxiliary agent.
The stirring speed of the stirring equipment for stirring is 2000-6000 r/min, and the stirring time is 5-15 min.
According to the mobile phone back plate, the photosensitive color-changing pattern layer is arranged, so that the mobile phone back plate can change color under ultraviolet irradiation, the photosensitive ink patterns on the mobile phone back plate can present visual effects with different colors indoors and outdoors, the visual fatigue of users is reduced, the patterns can show the color-changing effect with metallic luster by combining with the electroplated layer, the appearance display effect is improved, and the ornamental value is greatly improved; the hardened layer and the fingerprint prevention layer are arranged to improve the wear resistance and fingerprint prevention of the mobile phone back plate, prevent scratches or fingerprint grease from influencing the appearance display of the mobile phone back plate, and ensure the appearance display effect of the mobile phone back plate; the preparation method of the mobile phone backboard with the photosensitive color-changing pattern provided by the invention has the advantages of simple overall process, good forming effect, low forming cost, easiness in popularization and application and higher practical value.
The invention is not limited to the above embodiment, and other methods for manufacturing the mobile phone back plate with the photochromic pattern, which are obtained by adopting the same or similar structure, device, process or method as the above embodiment of the invention, are within the protection scope of the invention.
Claims (10)
1. A preparation method of a mobile phone backboard with a photosensitive color-changing pattern is characterized by comprising the following steps:
s1, cutting a base material to manufacture a formed sheet: cutting the composite base material through cutting equipment to obtain a formed sheet required by the required mobile phone back panel;
s2, processing of a formed sheet: carrying out hole site processing and edge burr polishing on the molded sheet by adopting CNC polishing equipment, carrying out hot bending molding on the molded sheet by adopting a composite base material hot bending machine after polishing, heating and softening the molded sheet at 80 ℃, 100 ℃, 200 ℃, 300 ℃ and 400 ℃ in sequence during hot bending molding, then carrying out downward hot pressing micro deformation for many times at 500 ℃, and finally carrying out downward hot pressing molding for many times at 680 ℃ to obtain a 3D cambered surface to form a semi-finished product of the backboard sheet;
s3, surface treatment: sequentially polishing and cleaning the surface of the semi-finished product of the mobile phone back plate, and then engraving patterns by using engraving equipment to form a blank area and a pattern area on the surface of the semi-finished product of the mobile phone back plate, wherein the engraving equipment is used for engraving the patterns in the pattern area, and secondary cleaning is performed after the patterns are engraved to obtain a back plate sheet finished product;
s4, photosensitive color-changing pattern treatment: preparing photosensitive color-changing ink, adding photosensitive color-changing powder into the pattern ink, stirring by using stirring equipment to fully mix particles of the photosensitive color-changing powder and the pattern ink to form the photosensitive color-changing ink, smearing the photosensitive color-changing ink on the surface of a pattern and smearing transparent ink on a blank area outside the pattern area by using plane printing equipment, and then solidifying to form a photosensitive color-changing pattern layer;
s5, texture effect processing: preparing UV light-curing ink, printing the UV light-curing ink on the surface of a blank area of the photosensitive color-changing pattern layer by adopting a UV printing technology, and putting a backboard sheet finished product into the UV light-curing equipment to form a texture layer after printing;
s6, hardening layer treatment: wiping and cleaning the surface of the texture layer, evaporating a layer of optically transparent hardening liquid on the surface of the texture layer by an optical nano technology, and then curing to form a hardening layer;
s7, electroplating layer treatment: carrying out optical electroplating on the bottom surface of the back plate sheet finished product by adopting an electron gun coating technology, and forming an electroplated layer after the electroplating is finished;
s8, priming treatment: preparing a base coating solution, spraying the base coating solution to the bottom surface of the electroplated layer through spraying equipment, and curing to form a base coating layer after spraying is finished;
s9, secondary fine engraving is carried out to manufacture the mobile phone back plate with the photosensitive color-changing pattern: and carrying out secondary fine engraving on the back plate sheet finished product by adopting CNC equipment, removing redundant impurities and bulges on the hole site and the edge of the back plate sheet finished product, and then cleaning to obtain the mobile phone back plate finished product with the photosensitive color-changing pattern.
2. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 1, wherein the method comprises the following steps: the base material is a transparent PMMA base material, and the thickness of the base material is 0.5 mm.
3. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 2, wherein the method comprises the following steps: the thickness of the photosensitive color-changing pattern layer is 1-3 mu m.
4. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 3, wherein the method comprises the following steps: the thickness of the texture layer is 110-18 μm.
5. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 4, wherein the method comprises the following steps: the thickness of the hardening layer is 0.2-1 mm.
6. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 5, wherein the method comprises the following steps: the thickness of the electroplated layer is 40-180 nm.
7. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 6, wherein the method comprises the following steps: the thickness of the bottom coating layer is 25-35 μm.
8. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 7, wherein the method comprises the following steps: the surface of sclerosis layer is equipped with AF and prevents fingerprint printing ink layer, AF prevents fingerprint printing ink layer's thickness is 20 mu m.
9. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 8, wherein the method comprises the following steps: the photochromic powder in the photochromic ink comprises 50-65 parts of polyol, 8-12 parts of organic photochromic material microcapsules, 5-13 parts of a binder, 0-2 parts of zinc salicylate and 0-5 parts of an auxiliary agent.
10. The method for preparing the mobile phone backboard with the photochromic pattern according to claim 9, wherein the method comprises the following steps: the stirring speed of the stirring equipment for stirring is 2000-6000 r/min, and the stirring time is 5-15 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581115.0A CN114268681A (en) | 2021-12-22 | 2021-12-22 | Preparation method of mobile phone back plate with photosensitive color-changing pattern |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581115.0A CN114268681A (en) | 2021-12-22 | 2021-12-22 | Preparation method of mobile phone back plate with photosensitive color-changing pattern |
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| CN114268681A true CN114268681A (en) | 2022-04-01 |
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| CN202111581115.0A Pending CN114268681A (en) | 2021-12-22 | 2021-12-22 | Preparation method of mobile phone back plate with photosensitive color-changing pattern |
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