CN113829727A - Production process of dumb mobile phone backboard - Google Patents
Production process of dumb mobile phone backboard Download PDFInfo
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- CN113829727A CN113829727A CN202111144341.2A CN202111144341A CN113829727A CN 113829727 A CN113829727 A CN 113829727A CN 202111144341 A CN202111144341 A CN 202111144341A CN 113829727 A CN113829727 A CN 113829727A
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B38/14—Printing or colouring
- B32B38/145—Printing
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention discloses a production process of a dumb mobile phone backboard, which comprises a transparent hardened layer, an outer texture effect layer, a composite base material, a silk-screen logo layer, a UV transfer printing layer, an electroplated layer and a cover bottom layer, wherein an ultraviolet light filtering layer and an astigmatism molecule layer are sequentially arranged between the transparent hardened layer and the outer texture effect layer from outside to inside, and a plurality of magnetic color-changing particles are arranged on the UV transfer printing layer. According to the invention, the external light filtering layer is arranged for filtering ultraviolet light and reducing the reflection of the ultraviolet light, so that the damage of the ultraviolet light to eyes and the influence on the color ink of internal patterns are reduced, the color fading is prevented, and the color display effect and the service life of the patterns are ensured; can draw the pattern region that has different patterns according to the demand through setting up magnetism color-changing particle, can change the texture pattern in pattern region according to user's demand, improve pattern variability and plasticity, make the pattern in pattern region can change along with ambient temperature's change through setting up the temperature sensitive dope layer that discolours, satisfy user's demand.
Description
Technical Field
The invention relates to the technical field of a dumb mobile phone backboard, in particular to a production process of the dumb mobile phone backboard.
Background
The mobile phone, called mobile phone or wireless phone for short, is usually called as mobile phone, originally only a communication tool, and has a popular name of big brother in the early stage, and is a portable phone terminal which can be used in a wider range. The mobile phone back plate is an important component of a mobile phone component and is also the mainstream development in the economic manufacturing industry at present.
With the increasing requirements of people on living quality and the increasing requirements on quality and performance of mobile phones, the existing mobile phone back plate has a single structure and simple functions and cannot meet the use requirements of people, in order to increase the attractiveness of the mobile phone back plate, pattern layer treatment is generally performed on the surface of the back plate, however, the pattern layer treatment only enables the back plate to be in a single color, the attractiveness is poor, the phenomenon of glare interference is easy to occur, and the pattern display effect is reduced and the attractiveness is influenced due to the fact that color pigments of patterns are degraded due to long-term irradiation of ultraviolet light of light; and the pattern of current cell-phone backplate is mostly fixed specification, can not freely alternate different patterns according to user's needs, if want to alternate the pattern and can only change through pad pasting or cell phone case, but the display effect of this kind of mode pattern is relatively poor, and the pattern can't demonstrate different colours according to different temperatures, can't reach the effect of discolouing, has not satisfied the demand of current user to the cell-phone backplate.
Disclosure of Invention
The invention provides a production process of a dumb mobile phone backboard aiming at the defects of the prior art.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a matte mobile phone backboard production process comprises a transparent hardened layer, an outer texture effect layer, a composite substrate, a silk-screen logo layer, a UV transfer printing layer, an electroplated layer and a cover bottom layer in sequence, wherein an ultraviolet light filtering layer and an astigmatism molecule layer are sequentially arranged between the transparent hardened layer and the outer texture effect layer from outside to inside, the UV transfer printing layer is provided with a transparent region I and a pattern region, the pattern region is provided with an interlayer, pattern printing ink is arranged in the interlayer, a plurality of magnetic color-changing particles are arranged in the pattern printing ink, and the magnetic color-changing particles comprise magnetic particles and temperature-sensitive color-changing coating layers covering the surfaces of the magnetic particles;
the production process comprises the following steps:
(1) cutting the transparent PMMA board into a composite base material by a cutting device in a specification and a size;
(2) spraying UV (ultraviolet) light-cured resin on the surface of the composite base material, processing and baking, then adhering the outer texture effect layer on the surface of the composite base material, pressing, irradiating and fixing through a UV lamp, tearing off the membrane on the surface of the outer texture effect layer, and finishing the adhesion of the outer texture effect layer;
(3) coating fluid resin containing a plurality of light scattering molecules on the surface of the outer texture effect layer, and after the coating is finished, carrying out compaction cooling and irradiation of a UV lamp to solidify the fluid resin into solid resin to form a light scattering molecule layer;
(4) coating fluid resin I containing a plurality of ultraviolet light filtering molecules on the surface of the light scattering molecular layer, and after the coating is finished, carrying out compression cooling and irradiation of a UV lamp to solidify the fluid resin I into solid resin I so as to form an ultraviolet light filtering layer;
(5) transparent hardening coating is smeared on the surface of the ultraviolet light filter layer, and the transparent hardening layer of the solidified layer is irradiated by an ultraviolet light lamp, wherein the thickness of the transparent hardening layer is 10-20 microns;
(6) printing a silk-screen logo layer with a transparent area and logo patterns on the lower surface of the composite substrate;
(7) coating adhesive resin in a shape like a Chinese character 'hui' on the inner side of the edge below the silk-screen logo layer to form a cavity of the first transparent area and an interlayer of the pattern area, injecting high-transparency resin into the cavity of the first transparent area, injecting pattern ink into the interlayer of the pattern area, coating the high-transparency resin again to form a sealing layer, and curing the sealing layer to form a UV transfer printing layer;
(8) coating electroplating ink with metallic luster on the bottom surface of the UV transfer printing layer to form an electroplating layer;
(9) coating bottom covering ink on the bottom surface of the electroplated layer to form a bottom covering layer to form a semi-finished product of the matte mobile phone back panel;
(10) and processing the semi-finished product of the smooth and dumb mobile phone back plate into the smooth and dumb mobile phone back plate through CNC equipment.
The surface of the transparent hardened layer is provided with a matte area and a transparent area II, and the matte area is provided with embossed concave-convex patterns; the transparent hardened layer is prepared from the following substances in parts by weight: 35-50 parts of polyurethane acrylic prepolymer, 1-10 parts of graft modified acrylic monomer, 0.5-7 parts of photoinitiator and 0.05-2 parts of flatting agent; 30-60 parts of a solvent.
In a further improvement, the step (5) further comprises the following steps:
(5.1) carrying out embossing processing of embossing concave-convex patterns by embossing equipment after the smeared transparent hardening coating;
(5.2) simultaneously irradiating and curing by using an ultraviolet lamp, wherein the ultraviolet illumination of the ultraviolet curing is 300-500 mj/cm < 2 >;
and (5.3) after the ultraviolet curing is finished, resetting the imprinting equipment, and finishing the manufacturing of the transparent hardened layer.
In a further improvement, the polyurethane acrylic prepolymer is aliphatic polyurethane acrylic resin with functionality of more than 3 or aromatic polyurethane acrylic resin with functionality of more than 3;
the acrylic monomer modified by grafting is an acrylic monomer modified by ethoxy, methoxy or hexyl, and has the functionality of more than 3.
The leveling agent is further improved and is an organic siloxane or organic silicon modified acrylic leveling agent; the solvent is one or the combination of butanone, ethanol, isopropanol, toluene, xylene, methyl isobutyl ketone and ethyl cellosolve.
In a further improvement, the preparation method of the first fluid resin in the step (3) comprises the following steps: mixing and stirring the resin binder I and the diluent I uniformly, adding the ultraviolet absorber and the dispersant I, stirring until the mixture is uniformly mixed, adding the defoamer I and the wetting agent I, and stirring until the mixture is uniform to obtain fluid resin I containing a plurality of ultraviolet filtering molecules; the first resin binder is one or more of polyamide resin, epoxy resin and acrylic resin.
In a further improvement, the preparation method of the fluid resin in the step (2) comprises the following steps: mixing and stirring the resin binder and the diluent uniformly, adding the light scattering powder and the dispersing agent, stirring until the mixture is uniformly mixed, adding the defoaming agent and the wetting agent, and stirring until the mixture is uniform to prepare the fluid resin containing a plurality of light scattering molecules; the resin binder is one or more of polyamide resin, epoxy resin and acrylic resin.
In a further improvement, the step (7) further comprises the following steps:
(7.1) mixing pattern ink, uniformly mixing and stirring a plurality of magnetic particles and a resin binder II to form magnetic particles with sticky outer surfaces, and uniformly mixing and stirring temperature-sensitive color-changing ink and the sticky magnetic particles to form a temperature-sensitive color-changing coating layer on the outer surfaces of the magnetic particles by the temperature-sensitive color-changing ink so as to form the pattern ink with a plurality of magnetic color-changing particles;
(7.2) laying pattern ink, uniformly laying the pattern ink in a pattern area, wherein the step of laying the pattern ink is realized by screen printing, selecting a screen printing plate for screen printing between 200 meshes and 250 meshes, printing the pattern ink in an interlayer of the pattern area, and then sealing a sealing layer;
(7.3) pattern drawing and positioning, namely drawing a pattern on the photo-dumb mobile phone back plate by using a magnetic pen, so that the pattern ink moves under the magnetic force action of the magnetic pen to form a printed pattern on the photo-dumb mobile phone back plate;
(7.4) cooling the positioning, and shaping the pattern ink to form a pattern area through cooling.
The further improvement is that the thickness of the electroplated layer is 40-450nm, the electroplated layer is printed by a screen printing technology, the screen printing screen mesh number in the screen printing technology is 300-400 meshes, the hardness of the scraping glue is 70-90A, and the electroplated layer is cured by being irradiated by an ultraviolet lamp of 600-1000mj/cm2 for 30-90 s.
In a further improvement, the thickness of the cover bottom layer is 25-35 μm.
The invention has the beneficial effects that: according to the invention, the external light filtering layer is arranged for filtering ultraviolet light and reducing the reflection of the ultraviolet light, so that the damage of the ultraviolet light to eyes and the influence on the color ink of internal patterns are reduced, the color is prevented from being weakened, and the pattern color display effect and the service life of the UV transfer printing layer and the silk-screen logo layer are ensured; the light scattering molecules are arranged for re-dispersing the reflected light, so that the scattering range of the color light is enlarged, and the appearance and the ornamental effect are improved; the high transparent resin with the thermal melting change is used for fixing the adjustment of the magnetic color-changing particles, so that the display stability of the patterns in the pattern region is ensured, the magnetic color-changing particles can draw the pattern region with different patterns on the transparent hardened layer through the magnetic pen according to the requirements of a user, the principle is that the magnetic pen can attract the magnetic color-changing particles to move along the moving track of the magnetic pen, the magnetic color-changing particles are adsorbed on the pattern region to form the patterns after the magnetic pen leaves, the texture patterns in the pattern region can be changed according to the requirements of the user, the variability and plasticity of the patterns are improved, and the patterns in the pattern region can change along with the change of the external temperature by arranging the temperature-sensitive color-changing coating layer, so that the requirements of the user are met.
The invention is further described with reference to the following detailed description and accompanying drawings.
Drawings
Fig. 1 is a schematic view of a production process flow of the back panel of the dumb optical mobile phone in this embodiment;
fig. 2 is a schematic structural diagram of a back plate of the dumb optical mobile phone in this embodiment;
fig. 3 is a schematic cross-sectional view of the back plate of the dumb optical mobile phone in this embodiment;
fig. 4 is a schematic structural diagram of the magnetic color-changing particle of the present 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 to 4, a production process of a dumb mobile phone back plate includes a transparent hardened layer 2, an external texture effect layer 3, a composite substrate 4, a silk-screen logo layer 5, a UV transfer layer 6, an electroplated layer 7 and a cover bottom layer 8 in sequence, an ultraviolet light filter layer 9 and an astigmatic molecule layer 10 are sequentially disposed between the transparent hardened layer 2 and the external texture effect layer 3 from outside to inside, the external texture effect layer 3 is used for providing an external texture effect, the UV transfer layer 6 is provided with a transparent region one 60 and a pattern region 61, the pattern region 60 is provided with an interlayer, a pattern ink 62 is disposed in the interlayer, a plurality of magnetic color-changing particles 63 are disposed in the pattern ink 62, and the magnetic color-changing particles 63 each include a magnetic particle 630 and a temperature-sensitive color-changing coating layer 631 covering the surface of the magnetic particle 630;
the production process comprises the following steps:
(1) cutting the transparent PMMA board into a composite base material 4 by a cutting device in a specification and a size;
(2) spraying UV (ultraviolet) light-cured resin on the surface of the composite base material 4, processing and baking, then adhering the outer texture effect layer 3 on the surface of the composite base material 4, pressing, irradiating and fixing through a UV lamp, tearing off a membrane on the surface of the outer texture effect layer 3, and finishing the adhesion of the outer texture effect layer 3;
(3) coating fluid resin containing a plurality of light scattering molecules 100 on the surface of the outer texture effect layer 3, after the coating is finished, carrying out compression cooling and irradiation of a UV lamp to solidify the fluid resin into solid resin to form a light scattering molecule layer 10, wherein equal intervals are arranged between the light scattering molecules 100 and the light scattering molecules 100;
(4) coating fluid resin I containing a plurality of ultraviolet filtering molecules 90 on the surface of the light scattering molecular layer 10, after coating, carrying out compression cooling and irradiation of a UV lamp to solidify the fluid resin I into solid resin I to form an ultraviolet filtering layer 9, wherein equal intervals I are arranged between the ultraviolet filtering molecules 90 and the ultraviolet filtering molecules 90;
(5) the transparent hardened coating 2 is coated on the surface of the ultraviolet light filter layer 9, the transparent hardened layer 2 of the cured layer is irradiated by an ultraviolet lamp, and the thickness of the transparent hardened layer 2 is 10-20 microns;
(6) printing a silk-screen logo layer 5 with a transparent area 50 and a logo pattern 51 on the lower surface of the composite substrate 4;
(7) coating adhesive resin in a shape like a Chinese character 'hui' on the inner side of the edge below the silk-screen logo layer 5 to form a cavity of a first transparent area 60 and an interlayer of a pattern area 61, injecting high-transparency resin into the cavity of the first transparent area 60, injecting pattern ink 62 into the interlayer of the pattern area 61, coating the high-transparency resin again to form a closed layer, and curing the closed layer to form a UV transfer printing layer 6;
(8) coating electroplating ink with metallic luster on the bottom surface of the UV transfer printing layer 6 to form an electroplating layer 7;
(9) coating bottom covering ink on the bottom surface of the electroplated layer 7 to form a bottom covering layer 8 to form a semi-finished product of the matte mobile phone back panel;
(10) and processing the semi-finished product of the dumb mobile phone back panel into the dumb mobile phone back panel 1 through CNC equipment.
The surface of the transparent hardened layer 2 is provided with a matte area 20 and a second transparent area 21, the matte area 20 is provided with embossed concave-convex patterns, the embossed concave-convex patterns are used for providing a matte effect, and the matte effect and the pattern highlight display combined appearance effect are formed by the embossed concave-convex patterns and the second transparent area 21; the transparent hardened layer 2 is prepared from the following substances in parts by weight: 35-50 parts of polyurethane acrylic prepolymer, 1-10 parts of graft modified acrylic monomer, 0.5-7 parts of photoinitiator and 0.05-2 parts of flatting agent; 30-60 parts of a solvent.
The step (5) further comprises the following steps:
(5.1) carrying out embossing processing of embossing concave-convex patterns by embossing equipment after the smeared transparent hardening coating;
(5.2) simultaneously irradiating and curing by using an ultraviolet lamp, wherein the ultraviolet illumination of the ultraviolet curing is 300-500 mj/cm < 2 >;
and (5.3) after the ultraviolet curing is finished, resetting the imprinting equipment, and finishing the manufacture of the transparent hardened layer 2.
The polyurethane acrylic prepolymer is aliphatic polyurethane acrylic resin with functionality higher than 3 or aromatic polyurethane acrylic resin with functionality higher than 3;
the acrylic monomer modified by grafting is an acrylic monomer modified by ethoxy, methoxy or hexyl, and has the functionality of more than 3.
The leveling agent is an organic siloxane or organic silicon modified acrylic leveling agent; the solvent is one or the combination of butanone, ethanol, isopropanol, toluene, xylene, methyl isobutyl ketone and ethyl cellosolve.
The preparation method of the fluid resin I in the step (3) comprises the following steps: mixing and stirring the resin binder I and the diluent I uniformly, adding the ultraviolet absorber and the dispersant I, stirring until the mixture is uniformly mixed, adding the defoamer I and the wetting agent I, and stirring until the mixture is uniform to obtain the fluid resin I containing a plurality of ultraviolet filtering molecules 90; the first resin binder is one or more of polyamide resin, epoxy resin and acrylic resin.
The preparation method of the fluid resin in the step (2) comprises the following steps: mixing and stirring the resin binder and the diluent uniformly, adding the light scattering powder and the dispersing agent, stirring until the mixture is uniformly mixed, adding the defoaming agent and the wetting agent, and stirring until the mixture is uniform to prepare the fluid resin containing a plurality of light scattering molecules 100; the resin binder is one or more of polyamide resin, epoxy resin and acrylic resin.
The step (7) further comprises the steps of:
(7.1) mixing pattern ink 62, mixing and stirring a plurality of magnetic particles 630 and a resin binder II uniformly to form magnetic particles 630 with adhesive outer surfaces, mixing and stirring temperature-sensitive color-changing ink and the adhesive magnetic particles 630 uniformly to form a temperature-sensitive color-changing coating layer 631 by the temperature-sensitive color-changing ink on the outer surfaces of the magnetic particles 630 to form the pattern ink 62 with a plurality of magnetic color-changing particles 63;
(7.2) laying pattern ink 62, uniformly laying the pattern ink 62 on the pattern area 61, wherein the step of laying the pattern ink 62 is realized by screen printing, the screen printing plate for screen printing is selected from 200 meshes to 250 meshes, the pattern ink 62 is printed in an interlayer of the pattern area 61, and then a sealing layer is sealed;
(7.3) pattern drawing and positioning, wherein a magnetic pen is used for drawing a pattern on the back plate 1 of the dumb mobile phone, so that the pattern ink 62 moves under the magnetic force of the magnetic pen to form a printed pattern on the back plate 1 of the dumb mobile phone;
(7.4) cooling to set the pattern ink 62 to form the pattern area 61.
The further improvement is that the thickness of the electroplated layer 7 is 40-450nm, the electroplated layer 7 is printed by a screen printing technology, the screen printing screen mesh number in the screen printing technology is 300-400 meshes, the glue scraping hardness is 70-90A, and the electroplated layer is cured by being irradiated by an ultraviolet lamp of 600-1000mj/cm2 for 30-90 s.
The thickness of the cover bottom layer 8 is 25-35 μm.
According to the invention, the external light filtering layer is arranged for filtering ultraviolet light and reducing the reflection of the ultraviolet light, so that the damage of the ultraviolet light to eyes and the influence on the color ink of internal patterns are reduced, the color is prevented from being weakened, and the pattern color display effect and the service life of the UV transfer printing layer and the silk-screen logo layer are ensured; the light scattering molecules are arranged for re-dispersing the reflected light, so that the scattering range of the color light is enlarged, and the appearance and the ornamental effect are improved; the high transparent resin with the thermal melting change is used for fixing the adjustment of the magnetic color-changing particles, so that the display stability of the patterns in the pattern region is ensured, the magnetic color-changing particles can draw the pattern region with different patterns on the transparent hardened layer through the magnetic pen according to the requirements of a user, the principle is that the magnetic pen can attract the magnetic color-changing particles to move along the moving track of the magnetic pen, the magnetic color-changing particles are adsorbed on the pattern region to form the patterns after the magnetic pen leaves, the texture patterns in the pattern region can be changed according to the requirements of the user, the variability and plasticity of the patterns are improved, and the patterns in the pattern region can change along with the change of the external temperature by arranging the temperature-sensitive color-changing coating layer, so that the requirements of the user are met.
The invention is not limited to the above embodiments, and other production processes for producing a back plate of a dumb mobile phone, which are obtained by adopting the same or similar structure, device, process or method as the above embodiments of the invention, are within the protection scope of the invention.
Claims (10)
1. A production process of a dumb mobile phone backboard is characterized by comprising the following steps: the dumb cell-phone backplate of light includes transparent sclerosis layer, outer texture effect layer, composite substrate, silk screen printing logo layer, UV rendition layer, plating layer and covers the bottom layer in proper order, be equipped with ultraviolet filter layer and astigmatism molecular layer from outer to inner in proper order between transparent sclerosis layer and the outer texture effect layer, UV rendition layer is equipped with transparent region one and pattern region, the pattern region is equipped with the intermediate layer, be equipped with pattern printing ink in the intermediate layer, be equipped with a plurality of magnetism in the pattern printing ink and change colour the granule, magnetism changes colour the granule and all includes magnetic particle and covers the temperature sensitive paint layer that changes colour on the magnetic particle surface;
the production process comprises the following steps:
(1) cutting the transparent PMMA board into a composite base material by a cutting device in a specification and a size;
(2) spraying UV (ultraviolet) light-cured resin on the surface of the composite base material, processing and baking, then adhering the outer texture effect layer on the surface of the composite base material, pressing, irradiating and fixing through a UV lamp, tearing off the membrane on the surface of the outer texture effect layer, and finishing the adhesion of the outer texture effect layer;
(3) coating fluid resin containing a plurality of light scattering molecules on the surface of the outer texture effect layer, and after the coating is finished, carrying out compaction cooling and irradiation of a UV lamp to solidify the fluid resin into solid resin to form a light scattering molecule layer;
(4) coating fluid resin I containing a plurality of ultraviolet light filtering molecules on the surface of the light scattering molecular layer, and after the coating is finished, carrying out compression cooling and irradiation of a UV lamp to solidify the fluid resin I into solid resin I so as to form an ultraviolet light filtering layer;
(5) transparent hardening coating is smeared on the surface of the ultraviolet light filter layer, and the transparent hardening layer of the solidified layer is irradiated by an ultraviolet light lamp, wherein the thickness of the transparent hardening layer is 10-20 microns;
(6) printing a silk-screen logo layer with a transparent area and logo patterns on the lower surface of the composite substrate;
(7) coating adhesive resin in a shape like a Chinese character 'hui' on the inner side of the edge below the silk-screen logo layer to form a cavity of the first transparent area and an interlayer of the pattern area, injecting high-transparency resin into the cavity of the first transparent area, injecting pattern ink into the interlayer of the pattern area, coating the high-transparency resin again to form a sealing layer, and curing the sealing layer to form a UV transfer printing layer;
(8) coating electroplating ink with metallic luster on the bottom surface of the UV transfer printing layer to form an electroplating layer;
(9) coating bottom covering ink on the bottom surface of the electroplated layer to form a bottom covering layer to form a semi-finished product of the matte mobile phone back panel;
(10) and processing the semi-finished product of the smooth and dumb mobile phone back plate into the smooth and dumb mobile phone back plate through CNC equipment.
2. The production process of the optically dumb mobile phone backboard according to claim 1, wherein the production process comprises the following steps: a matte area and a second transparent area are arranged on the surface of the transparent hardened layer, and embossed concave-convex patterns are arranged in the matte area; the transparent hardened layer is prepared from the following substances in parts by weight: 35-50 parts of polyurethane acrylic prepolymer, 1-10 parts of graft modified acrylic monomer, 0.5-7 parts of photoinitiator and 0.05-2 parts of flatting agent; 30-60 parts of a solvent.
3. The production process of the optically dumb mobile phone backboard according to claim 2, wherein the production process comprises the following steps: the step (5) further comprises the following steps:
(5.1) carrying out embossing processing of embossing concave-convex patterns by embossing equipment after the smeared transparent hardening coating;
(5.2) simultaneously irradiating and curing by using an ultraviolet lamp, wherein the ultraviolet illumination of the ultraviolet curing is 300-500 mj/cm < 2 >;
and (5.3) after the ultraviolet curing is finished, resetting the imprinting equipment, and finishing the manufacturing of the transparent hardened layer.
4. The production process of the optically dumb mobile phone backboard according to claim 3, wherein the production process comprises the following steps: the polyurethane acrylic prepolymer is aliphatic polyurethane acrylic resin with functionality higher than 3 or aromatic polyurethane acrylic resin with functionality higher than 3;
the acrylic monomer modified by grafting is an acrylic monomer modified by ethoxy, methoxy or hexyl, and has the functionality of more than 3.
5. The production process of the optically dumb mobile phone backboard according to claim 4, wherein the production process comprises the following steps: the leveling agent is an organic siloxane or organic silicon modified acrylic leveling agent; the solvent is one or the combination of butanone, ethanol, isopropanol, toluene, xylene, methyl isobutyl ketone and ethyl cellosolve.
6. The production process of the optically dumb mobile phone backboard according to claim 5, wherein the production process comprises the following steps: the preparation method of the fluid resin I in the step (3) comprises the following steps: mixing and stirring the resin binder I and the diluent I uniformly, adding the ultraviolet absorber and the dispersant I, stirring until the mixture is uniformly mixed, adding the defoamer I and the wetting agent I, and stirring until the mixture is uniform to obtain fluid resin I containing a plurality of ultraviolet filtering molecules; the first resin binder is one or more of polyamide resin, epoxy resin and acrylic resin.
7. The production process of the optically dumb mobile phone backboard according to claim 6, wherein the production process comprises the following steps: the preparation method of the fluid resin in the step (2) comprises the following steps: mixing and stirring the resin binder and the diluent uniformly, adding the light scattering powder and the dispersing agent, stirring until the mixture is uniformly mixed, adding the defoaming agent and the wetting agent, and stirring until the mixture is uniform to prepare the fluid resin containing a plurality of light scattering molecules; the resin binder is one or more of polyamide resin, epoxy resin and acrylic resin.
8. The production process of the optically dumb mobile phone backboard according to claim 7, wherein the production process comprises the following steps: the step (7) further comprises the steps of:
(7.1) mixing pattern ink, uniformly mixing and stirring a plurality of magnetic particles and a resin binder II to form magnetic particles with sticky outer surfaces, and uniformly mixing and stirring temperature-sensitive color-changing ink and the sticky magnetic particles to form a temperature-sensitive color-changing coating layer on the outer surfaces of the magnetic particles by the temperature-sensitive color-changing ink so as to form the pattern ink with a plurality of magnetic color-changing particles;
(7.2) laying pattern ink, uniformly laying the pattern ink on a pattern area, wherein the step of laying the pattern ink is realized by screen printing, a screen printing plate for screen printing is selected from 200 meshes to 250 meshes, the pattern ink is printed in an interlayer of the pattern area, and then a sealing layer is sealed;
(7.3) pattern drawing and positioning, namely drawing a pattern on the photo-dumb mobile phone back plate by using a magnetic pen, so that the pattern ink moves under the magnetic force action of the magnetic pen to form a printed pattern on the photo-dumb mobile phone back plate;
(7.4) cooling the positioning, and shaping the pattern ink to form a pattern area through cooling.
9. The production process of the optically dumb mobile phone backboard according to claim 8, wherein the production process comprises the following steps: the thickness of the electroplated layer is 40-450nm, the electroplated layer is printed by a screen printing technology, the mesh number of a screen printing plate printed in the screen printing technology is 300-.
10. The production process of the optically dumb mobile phone backboard according to claim 9, wherein: the thickness of the cover bottom layer is 25-35 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230356A (en) * | 2022-07-18 | 2022-10-25 | 深圳市裕雅科技有限公司 | Local 3D printing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008107567A (en) * | 2006-10-25 | 2008-05-08 | Sanritsu Yugenkoshi | Production process of stereocospic visual sensation effect printed matter and its composition |
| CN109021694A (en) * | 2018-10-24 | 2018-12-18 | 安徽金泽包装材料有限公司 | A kind of low gloss printing ink for cardboard |
| CN208477241U (en) * | 2018-07-17 | 2019-02-05 | 广州视源电子科技股份有限公司 | A kind of terminal device |
| CN109774212A (en) * | 2019-03-28 | 2019-05-21 | 广东阿特斯科技有限公司 | A kind of production technology of 3D cell phone rear cover |
| CN110475440A (en) * | 2019-08-12 | 2019-11-19 | Oppo广东移动通信有限公司 | Shell and preparation method thereof, electronic equipment |
| CN211105990U (en) * | 2019-10-28 | 2020-07-28 | 惠安县大林鞋服有限公司 | Fabric with color changing function |
-
2021
- 2021-09-28 CN CN202111144341.2A patent/CN113829727A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008107567A (en) * | 2006-10-25 | 2008-05-08 | Sanritsu Yugenkoshi | Production process of stereocospic visual sensation effect printed matter and its composition |
| CN208477241U (en) * | 2018-07-17 | 2019-02-05 | 广州视源电子科技股份有限公司 | A kind of terminal device |
| CN109021694A (en) * | 2018-10-24 | 2018-12-18 | 安徽金泽包装材料有限公司 | A kind of low gloss printing ink for cardboard |
| CN109774212A (en) * | 2019-03-28 | 2019-05-21 | 广东阿特斯科技有限公司 | A kind of production technology of 3D cell phone rear cover |
| CN110475440A (en) * | 2019-08-12 | 2019-11-19 | Oppo广东移动通信有限公司 | Shell and preparation method thereof, electronic equipment |
| CN211105990U (en) * | 2019-10-28 | 2020-07-28 | 惠安县大林鞋服有限公司 | Fabric with color changing function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230356A (en) * | 2022-07-18 | 2022-10-25 | 深圳市裕雅科技有限公司 | Local 3D printing method |
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