CN101282370B - Mobile phone shell and preparation method thereof - Google Patents
Mobile phone shell and preparation method thereof Download PDFInfo
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- CN101282370B CN101282370B CN2007100903060A CN200710090306A CN101282370B CN 101282370 B CN101282370 B CN 101282370B CN 2007100903060 A CN2007100903060 A CN 2007100903060A CN 200710090306 A CN200710090306 A CN 200710090306A CN 101282370 B CN101282370 B CN 101282370B
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Abstract
A cell phone casing, comprising a material layer and a raster layer having patterns thereon, wherein, the material layer and the raster layer are integrated. Preparation method of the cell phone casing includes combination of the patterned raster layer and the material layer, wherein, the raster layer and the material layer are combined through a integral structure. The cell phone casing of the invention has advantages that the cell phone casing is hardly abraded, the raster layer is not easily scaled off, the patterned raster layer provides an excellent appearance effect to the cell phone casing, the cell phone casing is provided with good appearance and durableness at the same time.
Description
Technical field
The invention relates to a kind of phone housing and preparation method thereof.
Background technology
The phone housing of Chu Xianing usually adopts simple printed patterns or paster technology to realize that case surface decorates in the market, and the defective of this shell is, incrustation is easy to wear, and useful life is short, and appearance is poor.
For this reason, CN2842907Y discloses a kind of improvement structure of mobile phone key, and this structure comprises by the adhesive bonding mode establishes a hyaline membrane in that keytop is glutinous, then forms grating on the hyaline membrane surface, has republished lighttight key symbols then on grating.Because grating can utilize diffraction principle to make light generation chromatic dispersion, therefore, make cell phone keyboard have stereoeffect by using grating material to decorate cell phone keyboard, strengthened the appearance of cell phone keyboard, improved the class of cell phone appearance.Yet the shortcoming of this product is that grating material combines not closely with button, comes off easily, causes mobile phone key short useful life, thereby has limited the further application of grating material on phone housing.At present, the product that does not also adopt grating material to decorate phone housing on the market occurs.
Therefore, it is good to develop a kind of appearance, can have phone housing than the long life and preparation method thereof simultaneously, is the problem that presses for solution at present.
Summary of the invention
The objective of the invention is provides a kind of appearance good, and has the phone housing than the long life in order to overcome the shortcoming that existing phone housing appearance is poor, useful life is short.
It is good that another object of the present invention provides a kind of appearance, and have the preparation method than the phone housing of long life.
In order to realize first purpose of the present invention, the invention provides a kind of phone housing, this shell comprises material layer and grating layer, has pattern on the described grating layer, wherein, described material layer and grating layer are integrative-structures.
In order to realize second purpose of the present invention, the invention provides a kind of preparation method of phone housing, this method comprises makes the grating layer with pattern combine with the material layer, wherein, with the mode that the material layer forms integrative-structure grating layer is combined by making grating layer with the material layer.
Phone housing provided by the invention, because material layer and grating layer are integrative-structures, thereby material layer and grating layer are not easily separated, thereby improved the useful life of phone housing greatly, and the grating layer with pattern also gives phone housing good appearance, makes the phone housing that provides of the present invention possess attractive in appearance and durable advantage simultaneously.The preparation method of phone housing provided by the invention is simple to operate, is easy to produce in batches.
Embodiment
According to phone housing provided by the invention, according to the needs of decorating, the surface of grating layer can have the pattern of various solids or change effect.
The material of described grating layer can be to well known to a person skilled in the art the various materials that possess the grating characteristic, for example, the material of described grating layer can be selected from one or more in PETG that weight average molecular weight is 10000-30000, Merlon that weight average molecular weight is 30000-100000, the polystyrene that weight average molecular weight is 200000-300000, and preferable weight-average molecular weight is the Merlon of 40000-80000.The material that satisfies the grating layer of above-mentioned condition can be commercially available, and for example the Saha of Shenzhen Lian En Science and Technology Ltd. draws 140 line PET, Saha to draw 220 line PET etc.
Among the present invention, described material layer is the base material layer of phone housing.The material of described material layer can be the various materials that form the phone housing base material layer in the prior art, for example, can be selected from Merlon that weight average molecular weight is 20000-60000, acrylonitrile-butadiene-styrene copolymer that weight average molecular weight is 20000-150000, in the polycarbonate alloy one or more, be preferably the Merlon of weight average molecular weight 20000-50000.The material that satisfies the material layer of above-mentioned requirements can be commercially available, for example, and the LEXAN141R of General Corporation, 6339R, 121R, 161R, the Makrolon1837 of EXXX0077, C1000HF, C1100HF, CI200HF and Bayer AG, 2805,2405 etc.
According to phone housing preparation method provided by the invention, this method comprises makes the grating layer with pattern combine with the material layer, wherein, with the mode that the material layer forms integrative-structure grating layer is combined by making grating layer with the material layer.
Describedly grating layer is combined with the material layer can make grating layer and the material layer structure that forms as one by variety of way, for example, can be by the method for injection mo(u)lding.The method of described injection mo(u)lding is incorporated in the mould that is placed with grating layer after comprising material fusion with the material layer, and injection mo(u)lding under the injection mo(u)lding condition afterwards obtains having the grating layer of integrative-structure and the phone housing of material layer.The condition of described injection mo(u)lding comprises that nozzle temperature is 200-300 ℃, material pipe front-end temperature is 220-320 ℃, material pipe stage casing temperature is 240-310 ℃, material pipe back segment temperature is 210-290 ℃, under the preferable case, nozzle temperature is 250-290 ℃, and material pipe front-end temperature is 250-300 ℃, material pipe stage casing temperature is 245-290 ℃, and material pipe back segment temperature is 240-280 ℃.The concrete operations of described injection mo(u)lding have been conventionally known to one of skill in the art.The material of described material layer is first at 70-150 ℃ before fusion, and preferred 80-120 ℃ was descended dry 1-7 hour, and preferred 3-5 hour, made the material moisture content of material layer be no more than 0.02 weight %.
Described grating layer with pattern can obtain by the mode of impressing pattern on the material of grating layer.Described impressing pattern can adopt the method for various routines, for example letterpress, offset printing, intaglio printing, one or more in flexographic printing and the method for printing screen.Also can be commercially available the material of the grating layer with various patterns, for example the Saha of Shenzhen Lian En Science and Technology Ltd. draws 140 line PET, Saha to draw 220 line PET etc.Grating layer with pattern is because the optical diffraction characteristic of grating can realize stereoeffect or change effect.
Described grating layer can obtain by the whole bag of tricks, for example, can at first the material with grating layer of pattern be cut with stamping cutting die, obtain being suitable for the size of high-pressure molding, the material of the grating layer that will cut is in the enterprising horizontal high voltage moulding of high-pressure molding board then, make it to become the grating layer that has consistent shape with the material layer, to guarantee in the follow-up injection moulding process that grating layer can combine closely with the material layer.The grating layer that high-pressure molding is obtained is placed on that to utilize stamping machine to carry out on the die cutting die die-cut then, dismisses clout, forms with phone housing material layer to have identical shaped grating layer.
The condition of described high-pressure molding comprises that clamping pressure is the 80-200 crust, low-pressure gas pressure is the 5-25 crust, the low pressure time is 5-30 second, high-pressure gas pressure is the 35-200 crust, mold temperature is 50-150 ℃, pre-roasting temperature is 150-400 ℃, dwell time is 5-50 second, and under the preferable case, clamping pressure is the 100-180 crust, low-pressure gas pressure is the 10-20 crust, the low pressure time is 10-20 second, and high-pressure gas pressure is the 50-150 crust, and mold temperature is 50-100 ℃, pre-roasting temperature is 200-350 ℃, and the dwell time is 5-30 second.
The present invention is described further below by embodiment.
Embodiment 1
Present embodiment is used to illustrate phone housing provided by the invention and preparation method thereof.
At first the material of the grating layer that is purchased (Shenzhen Lian En Science and Technology Ltd. with space pattern, Saha draws 140 line PET630 millimeters * 510 millimeters) cut, obtain being of a size of the material of 140 millimeters * 110 millimeters grating layer, the material that to cut the grating layer that obtains then carries out high-pressure molding by high-pressure molding board (the bright high-pressure forming machine of power factory), the condition of high-pressure molding comprises that clamping pressure is 180 crust, low-pressure gas pressure is 20 crust, the low pressure time is 10 seconds, high-pressure gas pressure is 150 crust, mold temperature is 85 ℃, pre-roasting temperature is 200 ℃, and the dwell time is 30 seconds.Then the grating layer of high-pressure molding is carried out die-cutly, dismiss clout, form with phone housing material layer and have identical shaped grating layer.
At last the grating layer of die-cut aftershaping is put into the die cavity of injection moulding board (Fa Nake company), with in advance through introducing after the material fusion of 4 hours material layer of 120 ℃ of dryings in this die cavity, carry out injection mo(u)lding, the material of material layer is the LEXAN141R of General Corporation.The condition of injection mo(u)lding comprises that nozzle temperature is 290 ℃, and material pipe front-end temperature is 300 ℃, and material pipe stage casing temperature is 245 ℃, and material pipe back segment temperature is 280 ℃, makes the phone housing sample D1 with space pattern.
Embodiment 2
Present embodiment is used to illustrate phone housing provided by the invention and preparation method thereof.
At first the material of the grating layer that is purchased (Shenzhen Lian En Science and Technology Ltd. with space pattern, Saha draws 220 line PET630 millimeters * 510 millimeters) cut, obtain being of a size of the material of 140 millimeters * 110 millimeters grating layer, the material that to cut the grating layer that obtains then carries out high-pressure molding by high-pressure molding board (the bright high-pressure forming machine of power factory), the condition of high-pressure molding comprises that clamping pressure is 120 crust, low-pressure gas pressure is 12 crust, the low pressure time is 10 seconds, high-pressure gas pressure is 80 crust, mold temperature is 80 ℃, pre-roasting temperature is 220 ℃, and the dwell time is 10 seconds.Then the material of the grating layer of high-pressure molding is carried out die-cutly, cut clout, form with phone housing material layer and have identical shaped grating layer.
At last the grating layer of die-cut aftershaping is put into the die cavity of the injection moulding board (Fa Nake company) of material layer, with in advance through introducing after the material fusion of 5 hours material layer of 95 ℃ of dryings in this die cavity, carry out injection moulding, the material of material layer is the EXXX0077 of General Corporation.The condition of injection mo(u)lding comprises that nozzle temperature is 270 ℃, and material pipe front-end temperature is 250 ℃, and material pipe stage casing temperature is 265 ℃, and material pipe back segment temperature is 250 ℃, makes the phone housing sample D2 with space pattern.
Embodiment 3
Present embodiment is used to illustrate phone housing provided by the invention and preparation method thereof.
It at first in weight average molecular weight material (Shenzhen Lian En Science and Technology Ltd. of 50000 Merlon grating layer by silk screen print method, 630 millimeters * 510 millimeters) last printing stereo pattern, concrete steps are, space pattern is attached to (half tone is of a size of 45 * 60 centimetres) on the half tone, the half tone that posts space pattern is placed on the exposure machine, the pressure of exposure machine is 30 MPas, exposure 7 minutes (the lamp distance is 50 millimeters) under the fluorescent lamp source; After the exposure, web plate seal faced up developed 3 minutes in the developer solution that is placed on 20 ℃, obtain the silk-screen half tone.Utilize plane air draught wire mark machine, use the silk-screen half tone and printing ink (printing ink contains 100 weight portion HTR952,10 weight portion HTR097/002 and the 10 weight portion HTR093) printed patterns on grating material that make.
The material of printing figuratum grating layer is cut, obtain being of a size of the material of 140 millimeters * 110 millimeters grating layer, the material that to cut the grating layer that obtains then carries out high-pressure molding by high-pressure molding board (the bright high-pressure forming machine of power factory), the condition of high-pressure molding comprises that clamping pressure is 120 crust, and low-pressure gas pressure is 12 crust, and the low pressure time is 10 seconds, high-pressure gas pressure is 80 crust, mold temperature is 80 ℃, and roasting in advance temperature is 220 ℃, and the dwell time is 10 seconds.Then the material of the grating layer of high-pressure molding is carried out die-cutly, cut clout, form with phone housing material layer and have identical shaped grating layer.
At last the grating layer of die-cut aftershaping is put into the die cavity of the injection moulding board (Fa Nake company) of material layer, with in advance through introducing after the material fusion of 5 hours material layer of 95 ℃ of dryings in this die cavity, carry out injection moulding, the material of material layer is the EXXX0077 of General Corporation.The condition of injection mo(u)lding comprises that nozzle temperature is 270 ℃, and material pipe front-end temperature is 250 ℃, and material pipe stage casing temperature is 265 ℃, and material pipe back segment temperature is 250 ℃, makes the phone housing sample D3 with space pattern.
Embodiment 4-6
Following embodiment is used to illustrate the performance of phone housing of the present invention.
According to following method phone housing sample D1, D2 and the D3 with space pattern that is made by embodiment 1, embodiment 2 and embodiment 3 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 800 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.
Table 1
| The embodiment numbering | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Sample number into spectrum | D1 | D2 | D3 |
| The resistance to marring test | Qualified | Qualified | Qualified |
| High temperature test | Qualified | Qualified | Qualified |
| Low-temperature test | Qualified | Qualified | Qualified |
| Humidity measurement | Qualified | Qualified | Qualified |
| The temperature shock test | Qualified | Qualified | Qualified |
| Salt mist test | Qualified | Qualified | Qualified |
As can be seen from the above table, phone housing provided by the invention is not easy to wear, the grating layer difficult drop-off, improved the durability of phone housing, and the grating layer with space pattern also gives phone housing good appearance, makes the phone housing that provides of the present invention possess attractive in appearance and durable advantage simultaneously.
Claims (6)
1. the preparation method of a phone housing, this method comprises makes the grating layer with pattern combine with the material layer, wherein, make grating layer and material layer form integrative-structure by injection mo(u)lding, it is characterized in that, with the material fusion of described material layer with before carrying out injection moulding, the material of described material layer is carried out drying, the condition of described drying makes the moisture content of the material of described material layer be no more than 0.02 weight %; The preparation method of described grating layer comprises the material of the grating layer mode by high-pressure molding is obtained grating layer, the condition of described high-pressure molding comprises that clamping pressure is the 80-200 crust, low-pressure gas pressure is 5-25, the low pressure time is 5-30 second, high-pressure gas pressure is 35-200, mold temperature is 50-150 ℃, and roasting in advance temperature is 150-400 ℃, and the dwell time is 5-50 second; The condition of described injection mo(u)lding comprises that nozzle temperature is 200-300 ℃, and material pipe front-end temperature is 220-320 ℃, and material pipe stage casing temperature is 240-310 ℃, and material pipe back segment temperature is 210-290 ℃.
2. preparation method according to claim 1, wherein, the condition of described drying comprises: dry temperature is 70-150 ℃, the dry time is 1-7 hour.
3. preparation method according to claim 2, wherein, the condition of described drying comprises: dry temperature is 80-120 ℃, the dry time is 3-5 hour.
4. preparation method according to claim 1, wherein, the condition of described injection mo(u)lding comprises that nozzle temperature is 250-290 ℃, and material pipe front-end temperature is 250-300 ℃, and material pipe stage casing temperature is 245-290 ℃, and material pipe back segment temperature is 240-280 ℃.
5. preparation method according to claim 1, wherein, the material of described grating layer is selected from one or more in PETG that weight average molecular weight is 10000-30000, Merlon that weight average molecular weight is 30000-100000, the polystyrene that weight average molecular weight is 100000-300000.
6. preparation method according to claim 1, wherein, the material of described material layer is selected from Merlon that weight average molecular weight is 20000-60000, acrylonitrile-butadiene-styrene copolymer that weight average molecular weight is 20000-150000, in the polycarbonate alloy one or more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100903060A CN101282370B (en) | 2007-04-04 | 2007-04-04 | Mobile phone shell and preparation method thereof |
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| CN2007100903060A CN101282370B (en) | 2007-04-04 | 2007-04-04 | Mobile phone shell and preparation method thereof |
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| CN101282370A CN101282370A (en) | 2008-10-08 |
| CN101282370B true CN101282370B (en) | 2011-05-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101722789A (en) * | 2009-11-11 | 2010-06-09 | 深圳市美迪华科技有限公司 | Intramembrane printing method and system |
| PL218615B1 (en) * | 2012-05-24 | 2015-01-30 | Wojciech Czajkowski | Method for producing a molding with a stereoscopic lenticular of plastic on the plastic |
| CN107918168A (en) * | 2016-10-11 | 2018-04-17 | 福特环球技术公司 | The iris badge and its manufacture method with coining diffraction film for vehicle |
| CN110649187A (en) * | 2019-09-17 | 2020-01-03 | 华勤通讯技术有限公司 | Preparation method of battery rear cover |
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| CN1158293A (en) * | 1996-11-20 | 1997-09-03 | 陕西秦岭航空电气公司 | Injection shaping tech. and process method of balance shaft gear |
| CN1394742A (en) * | 2002-07-05 | 2003-02-05 | 吴德明 | Packaging composite material, its production method and application |
| CN1631969A (en) * | 2004-11-18 | 2005-06-29 | 深圳市星光塑胶原料有限公司 | Resin composition and preparation method therefor |
| CN1715958A (en) * | 2004-06-28 | 2006-01-04 | 鸿富锦精密工业（深圳）有限公司 | The manufacture method of optical module and device |
| CN1734138A (en) * | 2004-08-02 | 2006-02-15 | 张昆 | Pressure container, method and apparatus for processing fiber reinforced polymer for composing the pressure container |
| CN2842907Y (en) * | 2005-11-03 | 2006-11-29 | 帝华科技股份有限公司 | Improved structure of mobile phone keystroke |
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2007
- 2007-04-04 CN CN2007100903060A patent/CN101282370B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158293A (en) * | 1996-11-20 | 1997-09-03 | 陕西秦岭航空电气公司 | Injection shaping tech. and process method of balance shaft gear |
| CN1394742A (en) * | 2002-07-05 | 2003-02-05 | 吴德明 | Packaging composite material, its production method and application |
| CN1715958A (en) * | 2004-06-28 | 2006-01-04 | 鸿富锦精密工业（深圳）有限公司 | The manufacture method of optical module and device |
| CN1734138A (en) * | 2004-08-02 | 2006-02-15 | 张昆 | Pressure container, method and apparatus for processing fiber reinforced polymer for composing the pressure container |
| CN1631969A (en) * | 2004-11-18 | 2005-06-29 | 深圳市星光塑胶原料有限公司 | Resin composition and preparation method therefor |
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