CN101640985A - Electronic product shell, preparation method and electronic product thereof - Google Patents
Electronic product shell, preparation method and electronic product thereof Download PDFInfo
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- CN101640985A CN101640985A CN200810126265A CN200810126265A CN101640985A CN 101640985 A CN101640985 A CN 101640985A CN 200810126265 A CN200810126265 A CN 200810126265A CN 200810126265 A CN200810126265 A CN 200810126265A CN 101640985 A CN101640985 A CN 101640985A
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Abstract
The invention provides an electronic product shell. The shell comprises a transparent shell body, a lightproof material layer, a non-light tight metal plating layer and a transparent primer layer, wherein the lightproof material layer is distributed on partial surface of the inner surface of the transparent shell body so that patterns are formed on the inner surface of the shell body without a lightproof material layer; the transparent primer layer is positioned on the outer surface of the transparent shell body; and the non-light tight metal plating layer is positioned on the surface of the transparent primer layer. The invention also provides a preparation method of the electronic product shell and an electronic product comprising the electronic product shell. The electronic product shell has good appearance effect, and can meet the individualized requirements of people.
Description
Technical field
The invention relates to a kind of electronic product casing and preparation method thereof and the electronic product that comprises this electronic product casing.
Background technology
The electronic product casing of Chu Xianing adopts simple printed patterns usually or forms the decoration that embossment is realized case surface in the market, along with growth in the living standard, people are when choosing electronic product, what pay close attention to is not only the function and the quality of electronic product, and the individual demand of electronic product has also been become the main cause that people choose electronic product.
Therefore, develop a kind of new electronic product casing and become the problem that presses for solution with the individual demand that satisfies people.
Summary of the invention
The object of the present invention is to provide a kind of electronic product casing and preparation method thereof of the individual demand that can satisfy people and comprise the electronic product of this electronic product casing.
The invention provides a kind of electronic product casing, wherein, this shell comprises the coat of metal of transparent shell body, lighttight material layer, printing opacity and transparent prime coat, described lighttight material layer is distributed in the part surface of described transparent shell body inner surface, do not form pattern so that do not have the outer cover body inner surface of lighttight material layer, described transparent prime coat is positioned at the outer cover body outer surface, and the described transparent coat of metal is positioned at the surface of described transparent prime coat.
The present invention also provides a kind of manufacture method of electronic product casing, and wherein, this method comprises: the inner surface in described transparent shell body is provided with lighttight material layer; The part of lighttight material layer is got rid of, do not formed pattern so that do not have the outer cover body inner surface of lighttight material layer; Outer surface in transparent shell body forms transparent prime coat, and forms the metal level of printing opacity on transparent prime coat.
The present invention also provides a kind of electronic product, and this electronic product comprises main body and the electronic product casing that matches with this main body, and wherein, described electronic product casing is an electronic product casing provided by the invention.
Electronic product casing provided by the invention is when only having external light source (for example, sunlight), and the pattern that is positioned at the transparent shell body inner surface is indistinct, and electronic product casing can be used as the mirror use; When outer cover body inside has light source, because being positioned at the coat of metal of the outer surface of transparent shell body can printing opacity, then can observe by the light-proof material that is positioned at the transparent shell body inner surface and cooperate formed pattern with inner display light source, thereby greatly improved the visual effect of electronic product outward appearance, can satisfy people's individual demand.
Description of drawings
Fig. 1 is the longitudinal section schematic diagram of the electronic product casing A1 that obtains among the embodiment 1;
Fig. 2 is the longitudinal section schematic diagram of the electronic product casing A2 that obtains among the embodiment 2;
Fig. 3 is the longitudinal section schematic diagram of the electronic product casing A3 that obtains among the embodiment 3;
Fig. 4 is the longitudinal section schematic diagram of the electronic product casing A4 that obtains among the embodiment 4;
The pattern that Fig. 5 shows when bias light is dark for the electronic product casing A4 that obtains among the embodiment 4;
The pattern that Fig. 6 shows when bias light is bright for the electronic product casing A4 that obtains among the embodiment 4.
Description of reference numerals:
The 1-transparent shell body
The lighttight material layer of 2-
The coat of metal of 3-printing opacity
The colored materials layer of 4-printing opacity
The colored paint layer of 5-printing opacity
The 6-protective clear layer
The prime coat that 7-is transparent
Embodiment
The invention provides a kind of electronic product casing, wherein, this shell comprises the coat of metal of transparent shell body, lighttight material layer, printing opacity and transparent prime coat, described lighttight material layer is distributed in the part surface of described transparent shell body inner surface, do not form pattern so that do not have the outer cover body inner surface of lighttight material layer, described transparent prime coat is positioned at the outer cover body outer surface, and the described transparent coat of metal is positioned at the surface of described transparent prime coat.
According to the present invention, described transparent prime coat can guarantee the adhesive force of the coat of metal of printing opacity, and when having flaw, the outer surface of transparent shell body can also cover these flaws, the thickness of described transparent prime coat can in very large range change, as long as can guarantee the adhesive force of the coat of metal of printing opacity, under the preferable case, the thickness of described transparent prime coat is the 10-30 micron.The light transmittance of described transparent prime coat can in very large range change, under the preferable case, light transmittance is 85-95%, the material of described material transparent layer has no particular limits, as long as can realize the function of transparent prime coat, for example, the material of described transparent prime coat can be commercially available, for example, the trade mark of high territory, Shenzhen chemical material company production is the UV gloss oil of 4380B.
According to the present invention, the thickness of the coat of metal of described printing opacity can in very large range change, as long as can make electronic product casing have mirror effect and don't influence and show the pattern that is positioned at the transparent shell body inner surface, under the preferable case, the light transmittance of the coat of metal of described printing opacity can be 10-70%, more preferably 15-50%; The material of the coat of metal of described printing opacity can in very large range change, and under the preferable case, the material of the described lighttight coat of metal can be in tin, aluminium, nickel, chromium, copper, silver and the titanium one or more.
According to the present invention, the thickness of described lighttight material layer can in very large range change, can not observe light source as long as make the position of transparent shell body from electronic product casing inside with this material layer, under the preferable case, the thickness of described lighttight material layer is the 10-30 micron; The material of described lighttight material layer can in very large range change, and under the preferable case, the material of described lighttight material layer can be lighttight coating, and for example, the trade mark that PPG company produces is the coating of XPB22362VS.
On the inner surface of transparent shell body, have the surface of lighttight material layer and form pattern, and under the situation that only has external light source, demonstrate this pattern gleamingly with the surface engagement that does not have lighttight material layer; When this electronic product has inner display light source, demonstrate with then making described clear patterns.
The material of described transparent shell body can be the various transparent materials of making electronic product casing that can be used in, for example, can for weight average molecular weight be 20000-60000 Merlon (PC)/or weight average molecular weight be 50000-1000000 polymethyl methacrylate (PMMA); The light transmittance of described outer cover body can in very large range change, and for example, the light transmittance of described outer cover body can be 50-95%.
According to the present invention, the part surface of described transparent shell body inner surface can also have the colored materials layer of printing opacity, described lighttight material layer is between the colored materials layer of transparent shell body and printing opacity, and the colored materials layer of described printing opacity does not have the surface of lighttight material layer at least in part on the covering shell body internal surface.The colored materials layer of described printing opacity can cover the surface with lighttight material layer also can not cover the surface with lighttight material layer, under the preferable case, the colored materials layer of described printing opacity can cover the surface with lighttight material layer, can simplify the step of the colored materials layer that printing opacity is set in this case.
When electronic product casing has the colored materials layer of printing opacity, on the inner surface of transparent shell body, promptly do not have the part that lighttight material layer also do not covered by the colored materials layer of printing opacity and form first pattern; The part that does not have lighttight material layer that is covered by the colored materials layer of printing opacity forms second pattern, first pattern is different with the color of second pattern, thereby make electronic product casing have the pattern of different levels, different colours, greatly improved the appearance of electronic product casing.
The thickness of the colored materials layer of described printing opacity can in very large range change, under the preferable case, the thickness of the colored materials layer of described printing opacity is the 5-25 micron, the light transmittance of described colored materials layer can in very large range change, under the preferable case, light transmittance is 25-60%, the color of the colored materials layer of described printing opacity is red, orange, yellow, green, blue, indigo, in the purple one or more, the material of the colored materials layer of described printing opacity has no particular limits, as long as can realize the function of colored materials layer, for example, can be the coloured enamel of printing opacity, for example, the trade mark that PPG company can be produced is that the clear, colorless lacquer of XPB67275S mixes mutually with the transparent pigment that CIBA (vapour crust) company produces, and obtains the coloured enamel of printing opacity, wherein, total weight with coloured enamel is a benchmark, and institute's transparent pigment addition is 1-5 weight %.
According to the present invention, the surface of the coat of metal of described printing opacity can also have the colored paint layer of printing opacity, the color of the colored paint layer of described printing opacity can in very large range change, for example can be for red, orange, yellow, green, blue, indigo, in the purple one or more, the thickness of the colored paint layer of described printing opacity can in very large range change, as long as the coat of metal of printing opacity is had color that needs and the demonstration that does not influence the pattern that is positioned at the transparent shell body inner surface, for example, the thickness of the colored paint layer of described printing opacity is the 5-25 micron, and the light transmittance of the colored paint layer of described printing opacity is 25-60%; The material of described colored paint layer has no particular limits, as long as can realize the function of the colored paint layer of printing opacity, for example, can be the coloured enamel of printing opacity, for example, the trade mark that PPG company can be produced is that the clear, colorless lacquer of XPB67275S mixes mutually with the transparent pigment that CIBA (vapour crust) company produces, obtain the coloured enamel of printing opacity, wherein, be benchmark with the total weight of coloured enamel, institute's transparent pigment addition is 1-5 weight %.The colored paint layer can make electronic product casing have different colors, thereby can satisfy the individual demand of different crowd more.
According to the present invention, for the coat of metal that makes printing opacity obtains better protection, this electronic product casing can also have protective clear layer on the surface of the coat of metal.
The material of described protective clear layer has no particular limits; as long as can play the function of protecting the coat of metal and the demonstration that does not influence the pattern that is positioned at the transparent shell body inner surface; under the preferable case; the light transmittance of described protective clear layer is 85-95%; the thickness of described protective clear layer can in very large range change; under the preferable case; the thickness of described protective clear layer is the 5-25 micron; the material of described protective clear layer can be commercially available; for example, the trade mark of high territory, Shenzhen chemical material company production is the colored varnish (light transmittance is 95%) of 4380B.
The present invention also provides a kind of manufacture method of electronic product casing, and wherein, this method comprises: the inner surface in described transparent shell body is provided with lighttight material layer; The part of lighttight material layer is got rid of, do not formed pattern so that do not have the outer cover body inner surface of lighttight material layer; Outer surface in transparent shell body forms transparent prime coat, and forms the metal level of printing opacity on transparent prime coat.
According to the present invention, the method that lighttight material layer is set at the inner surface of described transparent shell body can in very large range change, for example, can spray lighttight material by the inner surface in transparent shell body, it is the 10-30 micron that the condition of described spraying makes the thickness of the lighttight material layer that obtains.Described lighttight material does not repeat them here with above-described identical.
According to the present invention, the method that the part of lighttight material layer is got rid of can in very large range change, be preferably laser engraving, described laser engraving is meant by laser beam and according to the pattern-information of sequencing mould is carried out the moment high temperature ablation, and obtains pattern.The condition of described laser engraving can in very large range change, as long as the part of lighttight material layer is removed, does not get final product and do not damage outer cover body; Under the preferable case, the condition of described laser engraving can comprise that the power of laser beam is 10-20 watt, and effective vector step-length of laser beam is the 0.02-0.1 millimeter.
According to the present invention, the method that forms transparent prime coat at the outer surface of transparent shell body can in very large range change, for example, can form transparent prime coat by the outer surface that is sprayed on outer cover body, it is the 10-30 micron that the condition of described spraying makes the thickness of the transparent prime coat that obtains, the material of described transparent prime coat does not repeat them here with above-described identical.At the outer surface of transparent shell body the adhesive force of the coat of metal that transparent prime coat can guarantee the printing opacity of follow-up setting is set, and when the outer surface of transparent shell body has flaw, can covers these flaws.
The method that forms the coat of metal of printing opacity on transparent prime coat can be the various methods that can form the coat of metal, for example, can be galvanoplastic, electroless plating method or physical vapor deposition coating film method, be preferably the physical vapor deposition coating film method, because the thickness of the coat of metal that the sputter plating method in the physical vapor deposition coating film method obtains is even and relatively good with the adhesive force of outer cover body, therefore, further preferably form the coat of metal of described printing opacity by sputter plating method, described sputter plating method comprises: under sputtering condition, make the target material sputter of magnetic control target and be deposited on the transparent prime coat applying power supply on the magnetic control target.
The condition of described sputter plating method can be the existing various conditions that are used for the sputter plating, with the magnetron sputtering method is example, sputtering condition comprises: under sputtering condition, make the target material sputter of magnetic control target and be deposited on the transparent prime coat applying power supply on the magnetic control target; Target material is one or more in tin, aluminium, nickel, chromium, copper, silver and the titanium; It is 10-70% that described sputtering condition makes the light transmittance of the coat of metal of the printing opacity that obtains, and for example, the condition of described sputter can comprise that the pressure of sputter is 0.1-2.0 * 10
-1Handkerchief, the power of sputter are 2-10 kilowatt, and the time of sputter is 1-6 second, and the number of times of sputter is 1-4 time.
Magnetron sputtering coating method of the present invention can use existing various magnetron sputtering film device, and the magnetron sputtering film device can be commercially available.The structure of described magnetic control target has been conventionally known to one of skill in the art, and for example, magnetic control target can comprise target stand and target, and target is installed on the target stand.Described target stand is a magnet, and described magnet can be existing various magnets, for example, can be in ferromagnet, the neodymium iron boron magnetic body one or more.
Described target contains target material, can be preferably the single element target for single element target (promptly only containing a kind of target material in a target) or multielement target (promptly containing multiple target material in a target), and the purity of target material is preferably more than 99.9%.Described target material can be selected from one or more in tin, aluminium, nickel, chromium, copper, silver and the titanium.
Described sputtering under the inert gas atmosphere carried out.Described inert gas for example can be helium and/or argon gas for not participating in the gas of sputter reaction; The consumption of described inert gas has been conventionally known to one of skill in the art, for example, as long as the pressure the when consumption of inert gas makes sputter reaches 1-8 * 10
-1Handkerchief gets final product.Can vacuumize earlier, make the absolute pressure in the magnetic controlled sputtering ion plating equipment reach 2 * 10
-3Handkerchief to 5 * 10
-3In the scope of handkerchief, and then charge into inert gas, make the absolute pressure in the magnetic controlled sputtering ion plating equipment reach 1-8 * 10
-1Handkerchief.
In order to make electronic product casing have the pattern of different levels, different colours, the inner surface that the preparation method of electronic product casing provided by the invention can also be included in described transparent shell body is provided with the colored materials layer of printing opacity, makes described lighttight material layer between the colored materials layer of transparent shell body and printing opacity; Together get rid of with the part of the colored materials layer of described printing opacity with the corresponding lighttight material layer of this part.When the colored materials layer of printing opacity is set on electronic product casing, on the inner surface of transparent shell body, does not promptly have the part that lighttight material layer also do not covered by the colored materials layer of printing opacity and can form first pattern; The part that does not have lighttight material layer that is covered by the colored materials layer of printing opacity can form second pattern, first pattern is different with the color of second pattern, thereby make electronic product casing have the pattern of different levels, different colours, greatly improved the appearance of electronic product casing.
According to the present invention, can in very large range change with the part of the colored materials layer of described printing opacity with method that the corresponding lighttight material layer of this part is together got rid of, be preferably laser engraving, the condition of described laser engraving can in very large range change, as long as can make the colored materials layer of the position that need carry out laser engraving and lighttight material layer gets rid of, do not get final product and do not damage transparent shell body, for example, the condition of described laser engraving can comprise that the power of laser beam is 10-20 watt, and effective vector step-length of laser beam is the 0.02-0.1 millimeter.
For the color that makes electronic product casing abundanter, the surface that the preparation method of electronic product casing provided by the invention can also be included in the coat of metal of described printing opacity is provided with the colored paint layer of printing opacity, the color of the colored paint layer of described printing opacity and material do not repeat them here with above-described identical.
According to the present invention, obtain better protection in order to make electronic product casing, can also protective clear layer be set on the surface of colored paint layer.The method that described protective clear layer is set is conventionally known to one of skill in the art, for example, and can be by the method for spraying.The material of described protective clear layer does not repeat them here with above-described identical.
The present invention also provides a kind of electronic product, and this electronic product comprises main body and the electronic product casing that matches with this main body, and wherein, described electronic product casing is an electronic product casing provided by the invention.
Described main body comprises the various elements that can realize the electronic product function that hold in this electronic product casing, and the kind of described each element, combination and annexation thereof are conventionally known to one of skill in the art, here repeat no more.
The present invention is not particularly limited described electronic product, can be mobile phone, MP3 player, PDA, notebook computer and digital camera etc., is preferably mobile phone.
Below by embodiment the present invention is described in more detail.
(weight average molecular weight is 50000 Merlon in the transparent shell body that is of a size of 118 millimeters * 50 millimeters * 5 millimeters, GE, PC1414, light transmittance are 88%) inner surface spray lighttight coating (middle mountain Musashi, BLACK-C), obtaining thickness is 12 microns light-proof material layer.
The outer cover body that inner surface is had lighttight material layer is fixed on laser marking equipment (laser company of big nation, EB25L) on the workbench, the power of adjusting laser beam is 12.5 watts, 0.06 millimeter of the vector step-length of laser beam, the part that will be positioned at the lighttight material layer of outer cover body inner surface is got rid of, and forms the pattern that the surface does not have lighttight material layer.
At the outer surface of transparent shell body spraying UV gloss oil (high territory, Shenzhen chemical material company, 4380B, light transmittance are 95%), and to solidify to form thickness under ultraviolet light be 12 microns transparent prime coat.
Adopt magnetron sputtering coating apparatus (continous way magnetron sputtering coater, Youwei Science Co., Ltd, model is UHS-360B), transparent shell body is put on the net dish of continous way magnetron sputtering coater, automatically send into vacuum chamber, start vacuum pump and vacuumize, vacuum degree reaches 3 * 10 in vacuum chamber
-2During handkerchief, carry out oxygen RF (radio frequency) and clean, scavenging period was generally 20 seconds, and power is 800 watts, when the indoor vacuum degree to 3 of vacuum * 10
-3During handkerchief, charge into argon gas, making the pressure in the vacuum chamber is 0.3 * 10
-1During handkerchief, carry out magnetron sputtering zinc-plated (target is 99.99% tin), the power of sputter is 4 kilowatts, and the time of sputter is 3 seconds, and the number of times of sputter is 1 time.On transparent prime coat, form tin coating (light transmittance is 25%).Obtain electronic product casing A1.
Embodiment 2
(weight average molecular weight is 300000 polymethyl methacrylate in the transparent shell body that is of a size of 118 millimeters * 50 millimeters * 5 millimeters, Degussa, GK5BR, light transmittance is 91%) inner surface spray lighttight coating (middle mountain Musashi, BLACK-C), obtaining thickness is 25 microns light-proof material layer.
The outer cover body that inner surface is had lighttight material layer is fixed on laser marking equipment (laser company of big nation, EB25L) on the workbench, the power of adjusting laser beam is 13.5 watts, 0.05 millimeter of the vector step-length of laser beam, the part that will be positioned at the lighttight material layer of outer cover body inner surface is got rid of, but do not damage outer cover body, form first pattern.
(trade mark that PPG company is produced mixes mutually as the trade mark of the clear, colorless lacquer of XPB67275S and CIBA (vapour crust) the company production red transparent pigment as FBL to use the red colored varnish, obtain light transmittance and be the colored varnish of 45% redness, wherein, total weight with the colored varnish of redness is a benchmark, described red transparent pigment addition is 2.5 weight %), carry out second time spraying in the shell body internal surface, obtain thickness and be 15 microns colored materials layer (light transmittance is 45%).
The outer cover body that inner surface is had lighttight material layer is fixed on laser marking equipment (laser company of big nation, EB25L) on the workbench, the power of adjusting laser beam is 14.5 watts, 0.04 millimeter of the vector step-length of laser beam, to be positioned at the outer cover body inner surface the colored materials layer a part and together get rid of with the corresponding lighttight material layer of this part, but do not damage outer cover body, thereby cambial second pattern.
At the outer surface of transparent shell body spraying UV gloss oil (high territory, Shenzhen chemical material company, 4380B, light transmittance are 95%), and to solidify to form thickness under ultraviolet light be 25 microns transparent prime coat.
Adopt magnetron sputtering coating apparatus (continous way magnetron sputtering coater, Youwei Science Co., Ltd, model is UHS-360B), transparent shell body is put on the net dish of continous way magnetron sputtering coater, automatically send into vacuum chamber, start vacuum pump and vacuumize, vacuum degree reaches 3 * 10 in vacuum chamber
-2During handkerchief, carry out oxygen RF (radio frequency) and clean, scavenging period was generally 20 seconds, and power is 800 watts, when the indoor vacuum degree to 3 of vacuum * 10
-3During handkerchief, charge into argon gas, making the pressure in the vacuum chamber is 0.4 * 10
-1During handkerchief, carry out magnetron sputtering and aluminize (target is 99.99% aluminium), the power of sputter is 5 kilowatts, and the time of sputter is 5 seconds, and the number of times of sputter is 1 time.The aluminium coat that forms on transparent prime coat (light transmittance is 40%) obtains electronic product casing A2.
(weight average molecular weight is 30000 Merlon in the transparent shell body that is of a size of 118 millimeters * 50 millimeters * 5 millimeters, GE, light transmittance is 90%) inner surface spray lighttight coating (middle mountain Musashi BLACK-C), obtain thickness and be 20 microns light-proof material layer.
The outer cover body that inner surface is had lighttight material layer is fixed on laser marking equipment (laser company of big nation, EB25L) on the workbench, the power of adjusting laser beam is 12.5 watts, 0.06 millimeter of the vector step-length of laser beam, the part that will be positioned at the lighttight material layer of outer cover body inner surface is got rid of, and forms first pattern.
(trade mark that PPG company is produced mixes mutually as the trade mark of the clear, colorless lacquer of XPB67275S and CIBA (vapour crust) the company production red transparent pigment as FBL to use the red colored varnish, obtain light transmittance and be the colored varnish of 45% redness, wherein, total weight with the colored varnish of redness is a benchmark, described red transparent pigment addition is 2.5 weight %), carry out second time spraying in the shell body internal surface, obtain thickness and be 15 microns colored materials layer (light transmittance is 45%).
The outer cover body that inner surface is had lighttight material layer is fixed on laser marking equipment (laser company of big nation, EB25L) on the workbench, the power of adjusting laser beam is 14.5 watts, 0.04 millimeter of the vector step-length of laser beam, to be positioned at the outer cover body inner surface the colored materials layer a part and together get rid of with the corresponding lighttight material layer of this part, but do not damage outer cover body, thereby cambial second pattern.
At the outer surface of transparent shell body spraying UV gloss oil (high territory, Shenzhen chemical material company, light transmittance is 88%), and to solidify to form thickness under ultraviolet light be 25 microns transparent prime coat.
Adopt magnetron sputtering coating apparatus (continous way magnetron sputtering coater, Youwei Science Co., Ltd, model is UHS-360B), transparent shell body is put on the net dish of continous way magnetron sputtering coater, automatically send into vacuum chamber, start vacuum pump and vacuumize, vacuum degree reaches 3 * 10 in vacuum chamber
-2During handkerchief, carry out oxygen RF (radio frequency) and clean, scavenging period was generally 20 seconds, and power is 800 watts, when the indoor vacuum degree to 3 of vacuum * 10
-3During handkerchief, charge into argon gas, making the pressure in the vacuum chamber is 0.3 * 10
-1During handkerchief, carry out magnetron sputtering copper facing (target is 99.99% copper), the power of sputter is 6 kilowatts, and the time of sputter is 4 seconds, and the number of times of sputter is 2 times.The copper coating that on transparent prime coat, forms (light transmittance is 15%).
(trade mark that PPG company is produced is that clear, colorless lacquer and the trade mark of CIBA (vapour crust) company production of XPB67275S is that the blue transparent pigment of PG mixes mutually to the colored paint of the blue color of spraying on copper coating, obtain light transmittance and be the colored varnish of 50% blueness, wherein, total weight with the colored varnish of blueness is a benchmark, described blue transparent pigment addition is 2.5 weight %), obtain 20 microns colored paint layer (light transmittance is 50%), obtain electronic product casing A3.
Embodiment 4
(weight average molecular weight is 500000 polymethyl methacrylate in the transparent shell body that is of a size of 118 millimeters * 50 millimeters * 5 millimeters, Degussa, light transmittance is 87%) inner surface spray lighttight coating (middle mountain Musashi, BLACK-C), obtaining thickness is 20 microns light-proof material layer.
The outer cover body that inner surface is had lighttight material layer is fixed on laser marking equipment (laser company of big nation, EB25L) on the workbench, the power of adjusting laser beam is 12.5 watts, 0.06 millimeter of the vector step-length of laser beam, the part that will be positioned at the lighttight material layer of outer cover body inner surface is got rid of, and forms first pattern.
(trade mark that PPG company is produced mixes mutually as the trade mark of the clear, colorless lacquer of XPB67275S and CIBA (vapour crust) the company production red transparent pigment as FBL to use the red colored varnish, obtain light transmittance and be the colored varnish of 45% redness, wherein, total weight with the colored varnish of redness is a benchmark, described red transparent pigment addition is 2.5 weight %), carry out second time spraying in the shell body internal surface, obtain thickness and be 15 microns colored materials layer (light transmittance is 45%).
The outer cover body that inner surface is had lighttight material layer is fixed on laser marking equipment (laser company of big nation, EB25L) on the workbench, the power of adjusting laser beam is 14.5 watts, 0.04 millimeter of the vector step-length of laser beam, to be positioned at the outer cover body inner surface the colored materials layer a part and together get rid of with the corresponding lighttight material layer of this part, but do not damage outer cover body, thereby cambial second pattern.
At the outer surface of transparent shell body spraying UV gloss oil (high territory, Shenzhen chemical material company, 4380B, light transmittance are 95%), and to solidify to form thickness under ultraviolet light be 25 microns transparent prime coat.
Adopt magnetron sputtering coating apparatus (continous way magnetron sputtering coater, Youwei Science Co., Ltd, model is UHS-360B), transparent shell body is put on the net dish of continous way magnetron sputtering coater, automatically send into vacuum chamber, start vacuum pump and vacuumize, vacuum degree reaches 3 * 10 in vacuum chamber
-2During handkerchief, carry out oxygen RF (radio frequency) and clean, scavenging period was generally 20 seconds, and power is 800 watts, when the indoor vacuum degree to 3 of vacuum * 10
-3During handkerchief, charge into argon gas, making the pressure in the vacuum chamber is 0.3 * 10
-1During handkerchief, carry out magnetron sputtering chromium plating (target is 99.99% chromium), the power of sputter is 8 kilowatts, and the time of sputter is 5 seconds, and the number of times of sputter is 1 time.The chrome plating that on transparent prime coat, forms (light transmittance is 35%).
(trade mark that PPG company is produced is that clear, colorless lacquer and the trade mark of CIBA (vapour crust) company production of XPB67275S is that the blue transparent pigment of PG mixes mutually to the colored paint of the blue color of spraying on chrome plating, obtain light transmittance and be the colored varnish of 50% blueness, wherein, total weight with the colored varnish of blueness is a benchmark, described blue transparent pigment addition is 2.5 weight %), obtain 20 microns colored paint layer (light transmittance is 50%).
The use colored varnish (PPG company, the trade mark is the UV gloss oil of XPC70031, light transmittance is 95%) on the colored paint layer, spray, under ultraviolet light, solidify to form 15 microns protective clear layer, obtain electronic product casing A4.
Embodiment 5-8
According to following method the electronic product casing A1-A4 that is made by embodiment 1-4 is carried out Performance Detection respectively, test result is as shown in table 1.
The resistance to marring test
Adopting Mitsubishi (UNI) hardness is the pencil of 2H, on sample, applies 1000 gram forces by 45 ° of directions, 10 millimeters strokes, and diverse location is drawn 3 roads, and whether the observation sample outward appearance has obvious cut, as then interpret sample is qualified not have obvious cut.
The heat-resisting quantity test
Sample is put into accurate high-temperature test chamber (grand icepro HRHL45), heating is 240 hours under 85 ℃ of conditions, at room temperature placed then 2 hours, whether the observation sample outward appearance has comes off, distortion, slight crack and change color, as nothing come off, then interpret sample is qualified for distortion, slight crack and change color.
The lower temperature resistance test
Sample is put into constant temperature and moisture test machine (Taiwan celebrating sound, THS-2001) in, under-40 ℃ of conditions, placed 240 hours, at room temperature placed then 2 hours, whether the observation sample outward appearance has comes off, distortion, slight crack and change color, as nothing come off, then interpret sample is qualified for distortion, slight crack and change color.
The moisture-proof test
It is 90% that sample is put into humidity, temperature is 60 ℃ a constant temperature and moisture test machine (Taiwan celebrating sound, HTS-400) placed 96 hours in, at room temperature placed then 2 hours, whether the observation sample outward appearance has comes off, distortion, slight crack and change color, as nothing come off, then interpret sample is qualified for distortion, slight crack and change color.
The temperature shock test
Sample is put into cold shock testing machine (grand icepro HTS-400), under-40 ℃ of environment, placed 1 hour earlier, with temperature transition to 85 ℃, placed 1 hour then, be 15 seconds change-over time, does 12 circulations (24 hours) altogether.Whether the observation sample outward appearance has comes off, distortion, slight crack and change color, as nothing come off, then interpret sample is qualified for distortion, slight crack and change color.
Salt mist test
It is 30 ℃ that sample is placed on temperature, in the test chamber of humidity 〉=85% (HOLINK H-SST-90 salt spraytest machine), with the solution (solution compolision: 50 grams per liter NaCl), took out after spraying continuously 48 hours of pH=6.8; Dry up with normal temperature clear water flushing 5 minutes and with hair-dryer, at room temperature placed 1 hour, whether the observation sample outward appearance has comes off, distortion, slight crack and change color, as nothing come off, then interpret sample is qualified for distortion, slight crack and change color.
The test of hundred lattice
Sample is placed on the smooth hard table top, utilization intersection opening cutting machine (Erichsen CrossHatch Cutter Model-295) lancinates with hundred lattice at sample surfaces and draws the straight lines formation grid that several mutual 90 degree intersect, score must be deep to sees sample substrates, firmly being bonded at the white square district with adhesive tape tore rapidly in 0.5 to 1 second with 60 degree angles after 5 minutes, sample is put to microscopically and is observed, whether score is smooth, face coat has or not and comes off, and calculates the percentage of come off grid number and overall grid number.
Falling ball impact test
According to GB/T 1732 and ASTMD2794-93 examination criteria, sample is placed on the falling ball impact test machine testing stand falling sphere quality 170g, falling height 60cm, behind the ball falling impact 10 times observation sample whether come off, distortion, slight crack, as nothing come off, then interpret sample is qualified for distortion and slight crack.
The fall-down test of rolling
Sample is placed in the drop machine specimen holder that rolls clips, product is fallen with the attitude of rolling, falling height: 500mm, fall speed: 5 times/min, drop number: 20 times, whether the observation sample shell comes off, distortion, slight crack, as nothing come off, then interpret sample is qualified for distortion and slight crack.
Table 1
| The embodiment numbering | Embodiment 5 | Embodiment 6 | |
Embodiment 8 |
| Sample number into spectrum | ??A1 | ??A2 | ??A3 | ??A4 |
| The resistance to marring test | Qualified | Qualified | Qualified | Qualified |
| High temperature test | Qualified | Qualified | Qualified | Qualified |
| Low-temperature test | Qualified | Qualified | Qualified | Qualified |
| Humidity measurement | Qualified | Qualified | Qualified | Qualified |
| The temperature shock test | Qualified | Qualified | Qualified | Qualified |
| Salt mist test | Qualified | Qualified | Qualified | Qualified |
| Hundred lattice tests (%) | ??1 | ??1 | ??1 | ??0 |
| Falling ball impact test | Qualified | Qualified | Qualified | Qualified |
| The fall-down test of rolling | Qualified | Qualified | Qualified | Qualified |
As can be seen from the above table, the performance of electronic product casing provided by the invention can reach requirement, and electronic product casing provided by the invention (is for example only having external light source, sunlight) time, the pattern that is positioned at the transparent shell body inner surface is indistinct, and electronic product casing can be used as the mirror use; When outer cover body inside has light source, because being positioned at the coat of metal of the outer surface of transparent shell body can printing opacity, then can observe by the light-proof material that is positioned at the transparent shell body inner surface and cooperate formed pattern with inner display light source, thereby greatly improved the visual effect of electronic product outward appearance, can satisfy people's individual demand.
Claims (17)
1, a kind of electronic product casing, it is characterized in that, this shell comprises the coat of metal of transparent shell body, lighttight material layer, printing opacity and transparent prime coat, described lighttight material layer is distributed in the part surface of described transparent shell body inner surface, do not form pattern so that do not have the outer cover body inner surface of lighttight material layer, described transparent prime coat is positioned at the outer cover body outer surface, and the described transparent coat of metal is positioned at the surface of described transparent prime coat.
2, electronic product casing according to claim 1, wherein, the light transmittance of the coat of metal of described printing opacity is 10-70%, the material of the coat of metal of described printing opacity is one or more in tin, aluminium, nickel, chromium, copper, silver and the titanium.
3, electronic product casing according to claim 1, wherein, the thickness of described lighttight material layer is the 10-30 micron; The light transmittance of described transparent prime coat is 85-95%, and the thickness of described transparent prime coat is the 10-30 micron.
4, electronic product casing according to claim 1, wherein, the light transmittance of described transparent shell body is 50-95%, and the material of described transparent shell body is that weight average molecular weight is that Merlon and/or the weight average molecular weight of 20000-60000 is the polymethyl methacrylate copolymer of 50000-1000000.
5, electronic product casing according to claim 1, wherein, the part surface of described transparent shell body inner surface also has the colored materials layer of printing opacity, described lighttight material layer is between the colored materials layer of transparent shell body and printing opacity, and the colored materials layer of described printing opacity does not have the surface of lighttight material layer at least in part on the covering shell body internal surface.
6, electronic product casing according to claim 5, wherein, the thickness of the colored materials layer of described printing opacity is the 5-25 micron, the color of the colored materials layer of described printing opacity is one or more in red, orange, yellow, green, blue, indigo, the purple.
7, electronic product casing according to claim 1, wherein, the colored paint layer that also has printing opacity on the surface of the coat of metal of described printing opacity, the color of the colored paint layer of described printing opacity is one or more in red, orange, yellow, green, blue, indigo, the purple, and the thickness of the colored paint layer of described printing opacity is the 5-25 micron.
8, electronic product casing according to claim 7, wherein, the surface of described colored paint layer also has protective clear layer, and the light transmittance of described transparent protective layer is 85-95%, and the thickness of described protective clear layer is the 5-25 micron.
9, the manufacture method of the described electronic product casing of claim 1 is characterized in that, this method comprises: the inner surface in described transparent shell body is provided with lighttight material layer; The part of lighttight material layer is got rid of, do not formed pattern so that do not have the outer cover body inner surface of lighttight material layer; Outer surface in transparent shell body forms transparent prime coat, and forms the metal level of printing opacity on transparent prime coat.
10, method according to claim 9, wherein, the method that the part of lighttight material layer is got rid of is a laser engraving, and the condition of described laser engraving can comprise that the power of laser beam is 10-20 watt, and effective vector step-length of laser beam is the 0.02-0.1 millimeter.
11, method according to claim 9, wherein, the method that forms the coat of metal of printing opacity on transparent prime coat is the physical vapor deposition coating film method.
12, method according to claim 11, wherein, described physical vapor deposition coating film method is a sputter plating method, and described sputter plating method comprises: under sputtering condition, make the target material sputter of magnetic control target and be deposited on the transparent prime coat applying power supply on the magnetic control target; Target material is one or more in tin, aluminium, nickel, chromium, copper, silver and the titanium; It is 10-70% that described sputtering condition makes the light transmittance of the coat of metal of the printing opacity of formation.
13, method according to claim 9, wherein, the inner surface that this method also is included in described transparent shell body is provided with the colored materials layer of printing opacity, makes described lighttight material layer between the colored materials layer of transparent shell body and printing opacity; Together get rid of with the part of the colored materials layer of described printing opacity with the corresponding lighttight material layer of this part.
14, method according to claim 13, wherein, with the part of the colored materials layer of described printing opacity and with method that the corresponding lighttight material layer of this part is together got rid of be laser engraving, the condition of described laser engraving can comprise that the power of laser beam is 10-20 watt, and effective vector step-length of laser beam is the 0.02-0.1 millimeter.
15, method according to claim 9, wherein, the surface that this method also is included in the coat of metal of described printing opacity is provided with the colored paint layer of printing opacity, the color of the colored paint layer of described printing opacity is one or more in red, orange, yellow, green, blue, indigo, the purple, and it is the 5-25 micron that the described condition that the colored paint layer of printing opacity is set makes the thickness of colored paint layer of the printing opacity of formation.
16, method according to claim 9; wherein; the surface that this method also is included in described colored paint layer is provided with protective clear layer, and the light transmittance of described transparent protective layer is 85-95%, and it is the 5-25 micron that the described condition that protective clear layer is set makes the thickness of the protective clear layer of formation.
17, a kind of electronic product, this electronic product comprise main body and the electronic product casing that matches with this main body, it is characterized in that, described electronic product casing is any described electronic product casing among the claim 1-8.
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| EP2324689A1 (en) * | 2008-08-28 | 2011-05-25 | BYD Company Limited | Shell for electronic device, method of forming the shell and electronic device having the same |
| CN102762042A (en) * | 2011-04-26 | 2012-10-31 | 深圳富泰宏精密工业有限公司 | Shell and manufacturing method thereof |
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| EP2324689A1 (en) * | 2008-08-28 | 2011-05-25 | BYD Company Limited | Shell for electronic device, method of forming the shell and electronic device having the same |
| EP2324689A4 (en) * | 2008-08-28 | 2013-07-31 | Byd Co Ltd | Shell for electronic device, method of forming the shell and electronic device having the same |
| CN102762042A (en) * | 2011-04-26 | 2012-10-31 | 深圳富泰宏精密工业有限公司 | Shell and manufacturing method thereof |
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| CN112261177A (en) * | 2019-07-22 | 2021-01-22 | Oppo广东移动通信有限公司 | Shell, manufacturing method of shell and electronic device |
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