CN102458060B - Shell having effect of pattern with gradient color and manufacturing method for shell - Google Patents
Shell having effect of pattern with gradient color and manufacturing method for shell Download PDFInfo
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Abstract
The invention provides a shell having an effect of a pattern with gradient color. The shell comprises a transparent sheet and a transparent pattern, wherein the transparent pattern is formed on a first surface of the transparent sheet and has the effect of gradient color; a plastic layer is adhered to the first surface of the transparent sheet; and the transparent pattern is combined with the plastic layer. The invention also provides a manufacturing method for the shell having the effect of the pattern with the gradient color. According to the shell having the effect of the gradient pattern with gradient color and the manufacturing method for the shell, the shell is manufactured by sheet preparation, dyeing, demolding, forming and punching and in-mold injection, so that the shell is easy and convenient to manufacture; only the local part of the transparent pattern rather than the whole transparent sheet has the effect of the gradient color; therefore, the achieved effect of the gradient color is nature in transition and exquisite; and simultaneously, an inner lateral surface of the shell is formed by combining the transparent pattern layer with the gradient color and the plastic layer and is protected by an outer surface (a second surface) of the transparent sheet, so that the pattern with the gradient color is difficult to scrape and fade.
Description
Technical field
The invention belongs to plastic shell incrustation and manufacture field, particularly relate to and a kind of there is shell of patterns with gradually changed colors effect and preparation method thereof.
Background technology
Electronic product updates more and more faster, particularly mobile phone products, functions such as being not only the communication of mobile phone itself, showing, take pictures, and the new technology of phone housing incrustation, new technology also emerge in an endless stream.Phone housing is on the market main mainly with plastics greatly, and the painted and texture appearance decoration of plastics, can complete when plastic shaping, but in order to increase the life-span of product, improving aesthetics, generally all can carry out secondary operations by effects on surface, carries out various decoration and processes.The gradient color decoration of current Mobile phone plastic case surface is in the majority with whole surperficial gradual change, with the pattern gradual change of local decoration seldom, generally realizes mainly with techniques such as spraying, printing, physical vapour deposition (PVD)s (Physical Vapor Deposition is called for short PVD).
Wherein, spraying is that coloured liquid coating nozzle is sprayed onto case surface, but coating film thickness uniformity is difficult to control, and due to the surface tension of coating and case surface, easily at the long-pending oil of shell edge, the fade effect of working it out is not very beautiful.Printing aspect, can with digital printed, but digital printedly need special printing press, and it is with high costs, is difficult to realize for general user; If with common silk screen printing, need out half tone processed, and case surface gradual change pattern can leave half tone site, affects appearance.As for PVD technique, need the ion beam coating equipment using specialty, early stage, equipment investment was comparatively large, substantially increased cost of manufacture.Further, aforementioned spraying, printing, PVD technique cannot realize the fade effect of local pattern well.Although printing can make local pattern fade effect, patterned surfaces easily leaves half tone site, makes gradual change fine and smooth not.
Application number is 200910104942.3 patent applications, disclose a kind of composite material and preparation method, this composite material comprises base material particularly, substrate surface is porous anodic oxide film layer, base material is aluminum or aluminum alloy, at least one dyestuff is filled, dye content distribution gradient of the same race in the hole of at least part of porous anodic oxide film layer in the hole of porous anodic oxide film layer.This composite material and preparation method thereof comprises: form porous oxide rete by anodised method on aluminum or aluminum alloy surface; To the dyeing of porous oxide rete, the method for dyeing is the time that control porous oxide rete zones of different enters in dyestuff, makes the dye content distribution gradient of filling in porous anodic oxide film layer hole.But the fade effect that the composite material in this patent is just overall, cannot obtain the gradient color effect of local pattern.
Summary of the invention
The present invention is whole structure for solving patterns with gradually changed colors in prior art, cannot obtain the technical problem of local pattern gradient color effect, provide a kind of shell with patterns with gradually changed colors effect, can realize the gradient color effect of local pattern.
The present invention is achieved through the following technical solutions:
Have a shell for patterns with gradually changed colors effect, comprise clear sheet and be formed in the transparent pattern that clear sheet first surface has gradient color effect, the first surface of described clear sheet is attached with plastic layer, and transparent pattern is combined with plastic layer.
The present invention also provides a kind of manufacture method with patterns with gradually changed colors effect shell, said method comprising the steps of:
A, prepare sheet material: at the first surface coating resistance to water photoresists of clear sheet, be pasted onto on photoresists by figuratum for band film egative film, expose under ultraviolet light, develop, obtain the sheet material that other parts are hidden by photoresists except transparent pattern; Again at the second surface coating resistance to water photoresists that clear sheet is relative with first surface, direct exposure-processed, the photoresists that second surface is cured hide;
B, dyeing process: the sheet material in steps A is immersed in staining solution, control contact-making surface size and the time of contact of transparent pattern and staining solution, the contact-making surface size of transparent pattern and staining solution is reduced with the movement of sheet material, reaches transparent pattern and form gradient color effect;
C, demoulding process: the sheet material after dyeing process is carried out demoulding, washes the photoresists of clear sheet first surface and second surface;
D, molding press cutting: by the sheet material after step C process by shaping, die-cut, form the sheet form being applicable to in-mould injection;
E, in-mould injection: on the first surface of sheet material, inject plastic cement, make the transparent pattern of sheet material and plastic cement combine.
Shell and the manufacture method with patterns with gradually changed colors effect provided by the invention, make by preparing sheet material, dyeing process, demoulding process, molding press cutting and in-mould injection step, simply convenient for production, only on transparent pattern, form gradient color, obtain and generally speaking only have gradient color effect in transparent pattern local relative to clear sheet, the gradient color effect transition made is natural, fine and smooth; Meanwhile, gradient color transparent pattern layer and plastic cement combine becomes the medial surface of shell, and be subject to the protection of clear sheet outer surface (second surface), therefore patterns with gradually changed colors is not easily scratched and fades.
Accompanying drawing explanation
Fig. 1 is the structural representation with the shell of patterns with gradually changed colors effect provided by the invention.
Fig. 2 is the whole structure schematic diagram of shell transparent pattern gradient color provided by the invention.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to shown in Fig. 1 and Fig. 2, a kind of shell with patterns with gradually changed colors effect, comprise clear sheet 11 and be formed in the transparent pattern 22 that clear sheet first surface has gradient color effect, the first surface of described clear sheet is attached with plastic layer 12, and transparent pattern is combined with plastic layer.Gradient color shell provided by the invention, only forms gradient color on transparent pattern 22, and obtain and generally speaking only have gradient color effect in transparent pattern local relative to clear sheet, the gradient color effect transition made is natural, fine and smooth; Meanwhile, gradient color transparent pattern layer and plastic cement combine becomes the medial surface of shell, and be subject to the protection of clear sheet outer surface (second surface), therefore patterns with gradually changed colors is not easily scratched and fades.
Further, the material of described clear sheet is Merlon (PC) or PETG (PET), and its thickness is 0.1-0.188 millimeter, and clear sheet is after being combined with plastic cement thus, it is transparent for signing in sheet material, and whole plastic shell seems to have certain depth effect.
Further, the thickness of described plastic layer is 1-1.4 millimeter, if lower than 1 millimeter, the too thin intensity of housing integration is bad; If be greater than 1.4 millimeters, housing integration is too thick affects outward appearance and weight.
The present invention also provides a kind of manufacture method with patterns with gradually changed colors effect shell, said method comprising the steps of:
A, prepare sheet material: first at the first surface coating resistance to water photoresists of clear sheet, the material of clear sheet can be Merlon or PETG or other transparent plastic film sheet material, described photoresists can be one-pack-type photoresists or dual liquid type photoresists, emulsion adds in latex when producing by one-pack-type photoresists, preparation is not needed to be coated with during use, wherein resistance to water photoresists can resistance to water solvent, can water dyeing liquid in resistance to follow-up dyeing treatment process.Described photoresists also can adopt solvent resistance dual liquid type photoresists, but the staining solution of follow-up dyeing coupling is required to be oiliness, and one-pack-type photoresists do not need to carry out solvent as dual liquid type and join and release.Further, after the first surface coating resistance to water photoresists of clear sheet, at room temperature natural drying.
Then be pasted onto on the resistance to water photoresists of clear sheet first surface by the figuratum film egative film of band, expose under ultraviolet light, the place that UV light irradiates is crossed through exposure sources, photoresists solidify, and lose water-soluble.
Then develop, namely the transparent pattern image of the follow-up dyeing process of needs is shown, with clear water, the clear sheet after exposure is soaked into or is positioned over 1-2 minute in tank, take out the mist-like flushing clear sheet of rear giant, the part being subject to Ultraviolet radiation has photoresists to be hardened in clear sheet surface, what be not subject to Ultraviolet radiation is partially dissolved in water, the pattern that the place that photoresists dissolve is formed is identical with the pattern of film egative film, namely be required transparent pattern part, thus obtain the sheet material that other parts are hidden by photoresists except transparent pattern.
Finally at the second surface coating resistance to water photoresists that clear sheet is relative with first surface, directly carry out exposure-processed to the patience photoresists of second surface, the photoresists making second surface be exposed Post RDBMS hide.
B, dyeing process: the sheet material in steps A is immersed in staining solution, control contact-making surface size and the time of contact of transparent pattern and staining solution, the contact-making surface size of transparent pattern and staining solution is reduced with the movement of sheet material, until no longer contact, reach and only on transparent pattern, form gradient color effect.Described staining solution is comprising toner and water, and the volume proportion of described colouring agent and water is 1:4-1:10, and colouring agent dilute with water, preferably not more than 10 times, if be greater than 10 times, will cause follow-up colouring excessively light; If colouring agent does not dilute or lower than 4 times, sheet material can not be painted very well.According to actual needs, the effect of described gradient color can be monochromatic gradual change, double-colored gradual change, multi-color gradual change or natural pattern.
As a kind of concrete execution mode, described staining solution is red staining solution, and it is monochromatic gradual change dyeing, and wherein colouring agent is red, and the volume proportion of red stain and water is 1:6.
As the execution mode that another kind is concrete, described staining solution comprises the yellow staining solution and green staining solution that configure respectively, and it is double-colored gradual change dyeing, and wherein the colouring agent of yellow staining solution is yellow, and the volume proportion of yellow colorants and water is 1:6; The colouring agent of green staining solution is green, and the volume proportion of green colourant and water is 1:6.
The configuration mode that those skilled in the art dyes according to aforementioned monochromatic gradual change dyeing and double-colored gradual change, according to the actual needs, can also configure other multi-color gradual change staining solution or natural pattern staining solution, will not enumerate at this.
The detailed process of dyeing process is roughly as follows: the pulling apparatus of clamping sheet material clamps sheet material one end, sheet material is made slowly to sink to being immersed in staining solution, note making staining solution surface keep evenly, staining solution temperature controls at 70-90 degree, if temperature is lower than 70 degree, be unfavorable for sheet surface molecular expansion, colourant molecule is not easy to be diffused into sheet surface; If temperature is higher than 90 degree, sheet material is easily out of shape.The pull rate of pulling apparatus controls in 50-80 mm/min, and the lift that remains a constant speed, therefore sheet material is at the uniform velocity upwards pulled up with this speed, until sheet material is all pulled out staining solution, transparent pattern surface pulls out one end the earliest and is changed to from shallow to deep to the color pulling out one end the latest, thus realize the gradient color effect of pattern, rinse well with clear water after taking out sheet material.In the process, the duration at the uniform velocity lifted is determined by the contact-making surface height of sheet material transparent pattern and staining solution and pull rate, and those skilled in the art it should be understood that the time of contact of transparent pattern part and staining solution is longer, dyes darker; The time of contact of opposite transparent pattern part and staining solution is shorter, dyes more shallow, thus obtains gradual change pattern effect from shallow to deep.
C, demoulding process: the sheet material after dyeing process is carried out demoulding, washes the photoresists of clear sheet first surface and second surface.During process, can dip remover with gauze or sponge and carry out wiping, described remover is strong oxidizer, can peel off the photoresists on clear sheet surface.
D, molding press cutting: the sheet material after dyeing process is put in the shaping mould the same with plastic cement products shell shape, by high pressure forming device formed sheet, the redundance of formed sheet is fallen with stamping shearing apparatus stamping-out, make the shape of formed sheet consistent with product casing to be formed (such as plastic shell) shape, form the sheet form being applicable to in-mould injection.Wherein, gradient color transparent pattern part is at sheet material indent side, the i.e. first surface of sheet material, and protection patterns with gradually changed colors, prevents from being scratched in use procedure.
E, in-mould injection: the sheet material after stamping-out is put into plastic mould die cavity, the first surface of sheet material injects plastic cement, while the shaping electronic product casing of injection plastic rubber material, the inner surface transparent pattern of sheet material and plastic cement combine, and finally obtain the electric product plastic rubber shell that surface has patterns with gradually changed colors effect.Wherein, plastic material can adopt the engineering plastic sizing materials such as Merlon (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), in the process of injection moulding, injection pressure, dwell pressure and the control of dwell time will be noted especially, the injection pressure of injection plastic cement is generally 1600-2200 bar, dwell pressure is generally 960-1800 bar, and the dwell time is generally 1.5-2 second.Further, suitable raising pressure size, can better beat full plastic shell, accurately copy lines and pattern.
The manufacture method with patterns with gradually changed colors effect shell provided by the invention, make by preparing sheet material, dyeing process, demoulding process, molding press cutting and in-mould injection step, simply convenient for production, only on transparent pattern, form gradient color, obtain and generally speaking only have gradient color effect in transparent pattern local relative to clear sheet, the gradient color effect transition made is natural, fine and smooth; Meanwhile, gradient color transparent pattern layer and plastic cement combine becomes the medial surface of shell, and be subject to the protection of clear sheet outer surface (second surface), therefore patterns with gradually changed colors is not easily scratched and fades.Further, the transparent pattern of described plastic shell first surface can have monochrome, the fade effect such as double-colored, and sheet material is thin-film transparent shape simultaneously, with certain thickness, is covered in plastic surface, appears to have a kind of effect of the depth of field.
Below, will in conjunction with specific embodiments the preparation method with patterns with gradually changed colors effect shell of the present invention be described in detail.
Embodiment 1:
1, expose, develop
Choose 0.188 millimeters thick, transparency PC film sheet that length and width are 105 × 148.5 millimeters of specifications, wherein PC sheet material adopts the thin-film sheet that Bayer A.G provides.By resistance to water photoresists even application at first sheet face, at room temperature natural drying, described photoresists are one-pack-type photoresists, the resistance to water W series W-300F that photoresists adopt Tian Ling fine chemistry industry company to provide.Then figuratum for band film egative film is pasted onto first sheet face, expose under ultraviolet light, exposure light source is metal halid lamp (Iodine gallium light), and power is 3000 watts, time for exposure, according to selected photoresists, light source and determining, determines that the time for exposure is 1-1.5 minute.Excessive exposure can make the excessive sensitization of photoresists, and glued membrane produces sclerosis, and the non-photosensitive region dilatancy formed is deteriorated, and not easily rinses, causes pattern not easily to manifest; On the contrary, under-exposure can make photoresists sensitization degree inadequate, and glued membrane shows tender, easily washes out, and causes pattern to occur sand holes, zigzag, and glued membrane can be made time serious to come off, and the present embodiment preferred described time for exposure is preferably 1 minute.The part that Ultraviolet radiation is crossed, 21 namely in Fig. 2 is without figure (white) area part, and photoresists solidify, and lose water-soluble.Then develop, with clear water the sheet material after exposure soaked into or to be positioned in tank several minutes, general 1-2 minute, non-photosensitive region glued membrane is expanded, take out the mist-like flushing sheet material of rear giant, the part being subject to Ultraviolet radiation has photoresists to be hardened in sheet surface, and what be not subject to Ultraviolet radiation is partially dissolved in water, namely 22 in Fig. 2 has figure (gradual change black) area part, obtains the sheet material that other parts are hidden by photoresists except pattern.And then whole even application resistance to water photoresists (one-pack-type) of second sheet face, directly exposure-processed is carried out to second surface, second surface is hidden by the photoresists of ultra-violet curing.
2, monochromatic gradual change staining solution configuration
Allotment staining solution, colouring agent adopts the magnificent P type water-based plastic colouring agent reaching light industry chemistry institute and provide in Lucheng City, Wenzhou, Zhejiang Province, and color is red, and the volume proportion of colouring agent and water is 1:10, is made into the staining solution of required color.Pulling apparatus clamps one end of clear sheet, clear sheet is made slowly to sink to being immersed in staining solution, make staining solution surface keep evenly simultaneously, staining solution temperature controls at 90 degree, the pull rate of pulling apparatus is 80 mm/min, clear sheet is at the uniform velocity upwards pulled up with this speed, until clear sheet pull-out staining solution, rinse well after taking out sheet material with clear water.Transparent pattern surface pulls out one end the earliest and is changed to light color to dark to the color pulling out one end the latest, thus realizes the gradient color effect of pattern.
3, demoulding
Surface cleaning sheet is clean, then dip liquid parting with gauze or sponge, adopt the liquid parting that Tian Ling fine chemistry industry company provides, this product is strong oxidizer, for peeling off dry-film resist, at the two sides uniform application of sheet material, treat its reaction about 3 minutes, more repeatedly smear a liquid parting, finally with gauze or sponge wiping, can clean out the photoresists on sheet material two surface, obtain transparent pattern part and have gradient color effect, other parts are transparent sheet material.
4, sheet forming
The PC sheet material dyeed is put into shaping mould die cavity, and under certain temperature, pressure, formed sheet is shaped to the shape the same with electronic product casing to be formed.Further, PC sheet material adopts high-pressure molding technique, equipment is the model that good prosperous electronic equipment science and technology (Shenzhen) Co., Ltd provides is IMD200(Ton)-DL gas high pressure forming machine, the temperature of upper/lower die is set to 130 degree and 110 degree respectively, and the infrared baking temperature of sheet material is 340 degree, and the duration is 15 seconds, after upper/lower die matched moulds, apply the power of 30 kilograms, the dwell time is 10 seconds, and die sinking can obtain sheet forming product.
5, stamping-out formed sheet clout
Tear the diaphragm (second surface) on formed sheet surface, be then put in corresponding three-dimensional ring cutting mould, the pattern draft of mould is 2 degree, falls the tailing of sheet material, obtain electronic product sheet material shell with three-dimensional external form oil pressure bicker stamping-out.
6, injection mo(u)lding shell and fitting with gradient color sheet material shell
Gradient color sheet material shell good for stamping-out is inserted in plastic mould die cavity, with the reference column location in die cavity, and fix with gas adsorbing device, then sizing material is shaping obtains the plastic shell that surface has patterns with gradually changed colors effect in injection, and the thickness of described plastic layer is 1.4 millimeters.Wherein, Shooting Technique adopts Engel Victory series injection molding machine, and plastic rubber material adopts PC engineering plastics, in forming process, injection pressure, dwell pressure to be noted especially, suitable raising pressure size, full plastic shell can be beaten, accurately copy lines and pattern.The injection parameters of PC plastics is: injection temperature is 300-320 degree, and injection pressure is 2000-2200 bar, and dwell pressure is 1600-1800 bar, and the dwell time is 1.5-2 second.
Embodiment 2:
1, expose, develop
Choose 0.15 millimeters thick, transparency PC film sheet that length and width are 105 × 148.5 millimeters of specifications, wherein PC sheet material adopts the thin-film sheet that Bayer A.G provides.By resistance to water photoresists even application at first sheet face, at room temperature natural drying, described photoresists are one-pack-type photoresists, the resistance to water W series W-300F that photoresists adopt Tian Ling fine chemistry industry company to provide.Then figuratum for band film egative film is pasted onto first sheet face, expose under ultraviolet light, exposure light source is metal halid lamp (Iodine gallium light), and power is 3000 watts, time for exposure, according to selected photoresists, light source and determining, determines that the time for exposure is 1-1.5 minute.Excessive exposure can make the excessive sensitization of photoresists, and glued membrane produces sclerosis, and the non-photosensitive region dilatancy formed is deteriorated, and not easily rinses, causes pattern not easily to manifest; On the contrary, under-exposure can make photoresists sensitization degree inadequate, and glued membrane shows tender, easily washes out, and causes pattern to occur sand holes, zigzag, and glued membrane can be made time serious to come off, and the present embodiment preferred described time for exposure is preferably 1 minute.The part that Ultraviolet radiation is crossed, 21 namely in Fig. 2 is without figure (white) area part, and photoresists solidify, and lose water-soluble.Then develop, with clear water the sheet material after exposure soaked into or to be positioned in tank several minutes, general 1-2 minute, non-photosensitive region glued membrane is expanded, take out the mist-like flushing sheet material of rear giant, the part being subject to Ultraviolet radiation has photoresists to be hardened in sheet surface, and what be not subject to Ultraviolet radiation is partially dissolved in water, namely 22 in Fig. 2 has figure (gradual change black) area part, obtains the sheet material that other parts are hidden by photoresists except pattern.And then whole even application resistance to water photoresists (one-pack-type) of second sheet face, directly exposure-processed is carried out to second surface, second surface is hidden by the photoresists of ultra-violet curing.
2, monochromatic gradual change staining solution configuration
Allotment staining solution, colouring agent adopts the magnificent P type water-based plastic colouring agent reaching light industry chemistry institute and provide in Lucheng City, Wenzhou, Zhejiang Province, and color is red, and the volume proportion of colouring agent and water is 1:6, is made into the staining solution of required color.Pulling apparatus clamps one end of clear sheet, clear sheet is made slowly to sink to being immersed in staining solution, make staining solution surface keep evenly simultaneously, staining solution temperature controls at 80 degree, the pull rate of pulling apparatus is 60 mm/min, clear sheet is at the uniform velocity upwards pulled up with this speed, until clear sheet pull-out staining solution, rinse well after taking out sheet material with clear water.Transparent pattern surface pulls out one end the earliest and is changed to light color to dark to the color pulling out one end the latest, thus realizes the gradient color effect of pattern.
3, demoulding
Surface cleaning sheet is clean, then dip liquid parting with gauze or sponge, adopt the liquid parting that Tian Ling fine chemistry industry company provides, this product is strong oxidizer, for peeling off dry-film resist, at the two sides uniform application of sheet material, treat its reaction about 3 minutes, more repeatedly smear a liquid parting, finally with gauze or sponge wiping, can clean out the photoresists on sheet material two surface, obtain transparent pattern part and have gradient color effect, other parts are transparent sheet material.
4, sheet forming
The PC sheet material dyeed is put into shaping mould die cavity, and under certain temperature, pressure, formed sheet is shaped to the shape the same with electronic product casing to be formed.Further, PC sheet material adopts high-pressure molding technique, equipment is the model that good prosperous electronic equipment science and technology (Shenzhen) Co., Ltd provides is IMD200(Ton)-DL gas high pressure forming machine, the temperature of upper/lower die is set to 130 degree and 110 degree respectively, and the infrared baking temperature of sheet material is 340 degree, and the duration is 15 seconds, after upper/lower die matched moulds, apply the power of 30 kilograms, the dwell time is 10 seconds, and die sinking can obtain sheet forming product.
5, stamping-out formed sheet clout
Tear the diaphragm (second surface) on formed sheet surface, be then put in corresponding three-dimensional ring cutting mould, the pattern draft of mould is 2 degree, falls the tailing of sheet material, obtain electronic product sheet material shell with three-dimensional external form oil pressure bicker stamping-out.
6, injection mo(u)lding shell and fitting with gradient color sheet material shell
Gradient color sheet material shell good for stamping-out is inserted in plastic mould die cavity, with the reference column location in die cavity, and fix with gas adsorbing device, then sizing material is shaping obtains the plastic shell that surface has patterns with gradually changed colors effect in injection, and the thickness of described plastic layer is 1.2 millimeters.Wherein, Shooting Technique adopts Engel Victory series injection molding machine, and plastic rubber material adopts ABS engineering plastics, in forming process, injection pressure, dwell pressure to be noted especially, suitable raising pressure size, full plastic shell can be beaten, accurately copy lines and pattern.The injection parameters of ABS plastic is: injection temperature is 220-260 degree, and injection pressure is 1600-2000 bar, and dwell pressure is 960-1600 bar, and the dwell time is 1.5-2 second.
Embodiment 3:
1, expose, develop
Choose 0.1 millimeters thick, clear PET film sheet material that length and width are 105 × 148.5 millimeters of specifications, wherein PC sheet material adopts the thin-film sheet that Bayer A.G provides.By resistance to water photoresists even application at first sheet face, at room temperature natural drying, described photoresists are dual liquid type photoresists, the photoresists of the resistance to water W210 series that photoresists adopt Tian Ling company to provide and emulsion (are first filled a prescription emulsion water-soluble by quality 1:10, be mixed in again in the latex of large compared with the aqueous solution 5 parts and fully stir, place 1-2 hour, use after bubble collapse), then figuratum for band film egative film is pasted onto first sheet face, expose under ultraviolet light, exposure light source is metal halid lamp (Iodine gallium light), power is 3000 watts, time for exposure is according to selected photoresists, light source and determining, determine that the time for exposure is 1-1.5 minute.Excessive exposure can make the excessive sensitization of photoresists, and glued membrane produces sclerosis, and the non-photosensitive region dilatancy formed is deteriorated, and not easily rinses, causes pattern not easily to manifest; On the contrary, under-exposure can make photoresists sensitization degree inadequate, and glued membrane shows tender, easily washes out, and causes pattern to occur sand holes, zigzag, and glued membrane can be made time serious to come off, and the present embodiment preferred described time for exposure is preferably 1 minute.The part that Ultraviolet radiation is crossed, 21 namely in Fig. 2 is without figure (white) area part, and photoresists solidify, and lose water-soluble.Then develop, with clear water the sheet material after exposure soaked into or to be positioned in tank several minutes, general 1-2 minute, non-photosensitive region glued membrane is expanded, take out the mist-like flushing sheet material of rear giant, the part being subject to Ultraviolet radiation has photoresists to be hardened in sheet surface, and what be not subject to Ultraviolet radiation is partially dissolved in water, namely 22 in Fig. 2 has figure (gradual change black) area part, obtains the sheet material that other parts are hidden by photoresists except pattern.And then whole even application resistance to water photoresists (dual liquid type) of second sheet face, directly exposure-processed is carried out to second surface, second surface is hidden by the photoresists of ultra-violet curing.
2, monochromatic gradual change staining solution configuration
Allotment staining solution, colouring agent adopts the magnificent P type water-based plastic colouring agent reaching light industry chemistry institute and provide in Lucheng City, Wenzhou, Zhejiang Province, and color is red, and the volume proportion of colouring agent and water is 1:4, is made into the staining solution of required color.Pulling apparatus clamps one end of clear sheet, clear sheet is made slowly to sink to being immersed in staining solution, make staining solution surface keep evenly simultaneously, staining solution temperature controls at 70 degree, the pull rate of pulling apparatus is 50 mm/min, clear sheet is at the uniform velocity upwards pulled up with this speed, until clear sheet pull-out staining solution, rinse well after taking out sheet material with clear water.Transparent pattern surface pulls out one end the earliest and is changed to light color to dark to the color pulling out one end the latest, thus realizes the gradient color effect of pattern.
3, demoulding
Surface cleaning sheet is clean, then dip liquid parting with gauze or sponge, adopt the liquid parting that Tian Ling fine chemistry industry company provides, this product is strong oxidizer, for peeling off dry-film resist, at the two sides uniform application of sheet material, treat its reaction about 3 minutes, more repeatedly smear a liquid parting, finally with gauze or sponge wiping, can clean out the photoresists on sheet material two surface, obtain transparent pattern part and have gradient color effect, other parts are transparent sheet material.
4, sheet forming
The PET sheet dyeed is put into shaping mould die cavity, and under certain temperature, pressure, formed sheet is shaped to the shape the same with electronic product casing to be formed.Further, PET sheet adopts hot press forming technology, and equipment is common heat pressing forming machines, and type cavity mould temperature is 130-140 degree, and after upper/lower die matched moulds, apply the pressure of 80-100 MPa, the dwell time is 15 seconds, and die sinking can obtain PET sheet products formed.
5, stamping-out formed sheet clout
Tear the diaphragm (second surface) on formed sheet surface, be then put in corresponding three-dimensional ring cutting mould, the pattern draft of mould is 2 degree, falls the tailing of sheet material, obtain electronic product sheet material shell with three-dimensional external form oil pressure bicker stamping-out.
6, injection mo(u)lding shell and fitting with gradient color sheet material shell
Gradient color sheet material shell good for stamping-out is inserted in plastic mould die cavity, with the reference column location in die cavity, and fix with gas adsorbing device, then sizing material is shaping obtains the plastic shell that surface has patterns with gradually changed colors effect in injection, and the thickness of described plastic layer is 1 millimeter.Wherein, Shooting Technique adopts Engel Victory series injection molding machine, and plastic rubber material adopts PMMA engineering plastics, in forming process, injection pressure, dwell pressure to be noted especially, suitable raising pressure size, full plastic shell can be beaten, accurately copy lines and pattern.The injection parameters of PMMA plastics is: injection temperature is 220-260 degree, and injection pressure is 1800-2200 bar, and dwell pressure is 1080-1800 bar, and the dwell time is 1.5-2 second.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. one kind has the shell of patterns with gradually changed colors effect, it is characterized in that, comprise clear sheet and be formed in the transparent pattern that clear sheet first surface has gradient color effect, the first surface of described clear sheet is attached with plastic layer, and transparent pattern is combined with plastic layer.
2. the shell with patterns with gradually changed colors effect according to claim 1, is characterized in that, the thickness of described clear sheet is 0.1-0.188 millimeter.
3. the shell with patterns with gradually changed colors effect according to claim 1, is characterized in that, the thickness of described plastic layer is 1-1.4 millimeter.
4. there is a manufacture method for patterns with gradually changed colors effect shell, it is characterized in that, said method comprising the steps of:
A, prepare sheet material: at the first surface coating resistance to water photoresists of clear sheet, be pasted onto on photoresists by figuratum for band film egative film, expose under ultraviolet light, develop, obtain the sheet material that other parts are hidden by photoresists except transparent pattern; Again at the second surface coating resistance to water photoresists that clear sheet is relative with first surface, direct exposure-processed, the photoresists that second surface is cured hide;
B, dyeing process: the sheet material in steps A is immersed in staining solution, control contact-making surface size and the time of contact of transparent pattern and staining solution, the contact-making surface size of transparent pattern and staining solution is reduced with the movement of sheet material, reaches transparent pattern and form gradient color effect;
C, demoulding process: the sheet material after dyeing process is carried out demoulding, washes the photoresists of clear sheet first surface and second surface;
D, molding press cutting: by the sheet material after step C process by shaping, die-cut, form the sheet form being applicable to in-mould injection;
E, in-mould injection: on the first surface of sheet material, inject plastic cement, make the transparent pattern of sheet material and plastic cement combine.
5. the manufacture method with patterns with gradually changed colors effect shell according to claim 4, is characterized in that, the material of described clear sheet is Merlon or PETG.
6. the manufacture method with patterns with gradually changed colors effect shell according to claim 4, is characterized in that, described steps A comprises further: after the first surface coating resistance to water photoresists of clear sheet, at room temperature natural drying.
7. the manufacture method with patterns with gradually changed colors effect shell according to claim 4, is characterized in that, in described step B, staining solution is comprising toner and water, and the volume proportion of described colouring agent and water is 1:4-1:10.
8. the manufacture method with patterns with gradually changed colors effect shell according to claim 7, is characterized in that, described staining solution is red staining solution, and wherein colouring agent is red, and the volume proportion of red stain and water is 1:6.
9. the manufacture method with patterns with gradually changed colors effect shell according to claim 7, it is characterized in that, described staining solution comprises the yellow staining solution and green staining solution that configure respectively, wherein the colouring agent of yellow staining solution is yellow, and the volume proportion of yellow colorants and water is 1:6; The colouring agent of green staining solution is green, and the volume proportion of green colourant and water is 1:6.
10. the manufacture method with patterns with gradually changed colors effect shell according to claim 8 or claim 9, it is characterized in that, the temperature of described staining solution is 70-90 degree, and the at the uniform velocity pull rate of the pulling apparatus of clamping sheet material is 50-80 mm/min.
11. manufacture methods with patterns with gradually changed colors effect shell according to claim 4, it is characterized in that, in described step D, sheet form is consistent with the shape of product casing to be formed.
12. manufacture methods with patterns with gradually changed colors effect shell according to claim 4, is characterized in that, in described step e, the injection pressure of injection plastic cement is 1600-2200 bar, and dwell pressure is 960-1800 bar, and the dwell time is 1.5-2 second.
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| CN201010517658.1A CN102458060B (en) | 2010-10-25 | 2010-10-25 | Shell having effect of pattern with gradient color and manufacturing method for shell |
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| CN201010517658.1A CN102458060B (en) | 2010-10-25 | 2010-10-25 | Shell having effect of pattern with gradient color and manufacturing method for shell |
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| CN102458060B true CN102458060B (en) | 2015-07-22 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101993805B1 (en) * | 2012-10-05 | 2019-06-27 | 삼성전자 주식회사 | Case of portable terminal and manufacturing method thereof |
| CN108990328A (en) * | 2018-07-17 | 2018-12-11 | Oppo广东移动通信有限公司 | Shell and preparation method thereof, electronic equipment |
| CN109251343B (en) * | 2018-10-26 | 2021-06-04 | Oppo（重庆）智能科技有限公司 | Manufacturing method of shell of electronic device, shell and electronic device |
| CN111116053A (en) * | 2018-10-31 | 2020-05-08 | 惠州比亚迪电子有限公司 | Sheet material, preparation method thereof and electronic equipment |
| CN111114158A (en) * | 2018-10-31 | 2020-05-08 | 比亚迪股份有限公司 | Sheet material, preparation method thereof and electronic equipment |
| CN111263545A (en) * | 2020-01-19 | 2020-06-09 | Oppo广东移动通信有限公司 | Decorative membrane, preparation method, shell assembly and electronic equipment |
| CN111389688A (en) * | 2020-03-27 | 2020-07-10 | 广州皓醒湾科技有限公司 | Method and device for manufacturing shell with gradually changed colors |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262246A (en) * | 1999-01-25 | 2000-08-09 | 北京北大未名科技文化发展公司 | Glass carving technology |
| CN101304442A (en) * | 2008-06-13 | 2008-11-12 | 东莞欧珀移动通信有限公司 | Mobile phone case and manufacturing process |
| CN101422946A (en) * | 2007-10-31 | 2009-05-06 | 比亚迪股份有限公司 | In-die decoration production and forming method thereof |
| CN101546128A (en) * | 2008-03-24 | 2009-09-30 | 深圳富泰宏精密工业有限公司 | Method for forming patterns with gradually changed colors on surface of shell |
-
2010
- 2010-10-25 CN CN201010517658.1A patent/CN102458060B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262246A (en) * | 1999-01-25 | 2000-08-09 | 北京北大未名科技文化发展公司 | Glass carving technology |
| CN101422946A (en) * | 2007-10-31 | 2009-05-06 | 比亚迪股份有限公司 | In-die decoration production and forming method thereof |
| CN101546128A (en) * | 2008-03-24 | 2009-09-30 | 深圳富泰宏精密工业有限公司 | Method for forming patterns with gradually changed colors on surface of shell |
| CN101304442A (en) * | 2008-06-13 | 2008-11-12 | 东莞欧珀移动通信有限公司 | Mobile phone case and manufacturing process |
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Effective date of registration: 20180530 Address after: 512023 the two floor of No. 1 (canteens) Shaoguan BYD Industrial Co., Ltd., 1 BYD Avenue, Zhenjiang Industrial Park, Shaoguan, Guangdong. Patentee after: Shaoguan BYD Electronics Co., Ltd. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: Biyadi Co., Ltd. |