CN102390216A - Plastic shell with metallic appearance effect and method for realizing hardware wire-drawing hand feeling - Google Patents
Plastic shell with metallic appearance effect and method for realizing hardware wire-drawing hand feeling Download PDFInfo
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- CN102390216A CN102390216A CN201110206738XA CN201110206738A CN102390216A CN 102390216 A CN102390216 A CN 102390216A CN 201110206738X A CN201110206738X A CN 201110206738XA CN 201110206738 A CN201110206738 A CN 201110206738A CN 102390216 A CN102390216 A CN 102390216A
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- film sheet
- wire drawing
- sheet material
- appearance effect
- plastic cement
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- 238000005491 wire drawing Methods 0.000 title claims abstract description 62
- 239000004033 plastic Substances 0.000 title claims abstract description 54
- 229920003023 plastic Polymers 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000000694 effects Effects 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 81
- 229910052751 metal Inorganic materials 0.000 claims abstract description 81
- 239000010408 film Substances 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 239000003292 glue Substances 0.000 claims abstract description 25
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 52
- 239000004568 cement Substances 0.000 claims description 35
- 150000002739 metals Chemical class 0.000 claims description 31
- 238000005516 engineering process Methods 0.000 claims description 15
- 238000010023 transfer printing Methods 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000016 photochemical curing Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 238000003856 thermoforming Methods 0.000 claims description 6
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 238000003854 Surface Print Methods 0.000 claims description 3
- 239000013039 cover film Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001465 metallisation Methods 0.000 abstract description 2
- 238000007639 printing Methods 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 31
- 229920002799 BoPET Polymers 0.000 description 9
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000007747 plating Methods 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
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Abstract
The invention discloses a plastic shell with a metallic appearance effect and a method for realizing hardware wire-drawing hand feeling. The method comprises the following steps: trans-printing wire-drawing lines on the surface of a metal material onto the outer side surface of a transparent film sheet through UV (ultraviolet) glue; producing a corresponding metal thin film on the inner side surface of the film sheet through the NCVM (non-conductive vacuum metallization) process; and attaching the inner side surface of the film sheet on a formed plastic layer by utilizing the IML (in-mould-label) forming process. As a UV trans-printed wire-drawing coating and an NCVM metal plated film are respectively adopted on the two surfaces of the film sheet, the hardware wire-drawing hand feeling and the appearance effect, which can almost mix the false with the genuine, can be achieved; furthermore, the NCVM metal plated film does not affect the radio frequency performance and the ESD (electrostatic discharge) performance of a communication product; and in addition, the NCVM process is more in line with the requirements of being green and environmentally friendly of the manufacturing process, not only is the weight of the product greatly reduced, but also the price of the product is lower than a hardware piece.
Description
Technical field
The present invention relates to the communication product field that mobile phone etc. has radio-frequency enabled, in particular, improve relate to be a kind of with metal appearance effect the plastic cement shell and realize the method for five metals wire drawing feel.
Background technology
For great majority such as mobile phone have the radio-frequency enabled communication product; The product that adopts handware to produce; As use stainless steel or aluminium alloy, and after punch forming, carry out wire drawing again and handle, have the texture and the glossiness of metal; Product specification sense than adopting plastic parts to produce is higher, also has higher price and profit margin.So some manufacturer also can use plastic material, on mould, erode away earlier the lines of wire drawing, handle through the water power plating again after the injection mo(u)lding, with the five metals effect of imitation wire drawing.
But, the product that uses stainless steel or aluminium alloy to make, its material itself can produce certain influence to the radio-frequency performance of communication product, on using, receives significant limitation; And the product of producing with present mould etching process and electroplating technology level, lines that it is surperficial and metal-like and glossiness are all relatively poor, are difficult to possess the five metals appearance of mixing the spurious with the genuine; And, the product after the water power plating is handled, its metal surface also can produce certain influence to the radio-frequency performance of communication product, on using, has significant limitation equally; In addition, the water power plating also can produce very serious pollution to environment, has increased the weight of production cost of products, both uneconomical also not environmental protection.
Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
The objective of the invention is to; Provide a kind of with the plastic cement shell of metal appearance effect and the method for realization five metals wire drawing feel; Not only five metals wire drawing feel and appearance were realized in economy but also environmental protection ground on plastic material, and can also avoid the radio-frequency performance of communication product to exert an influence.
Technical scheme of the present invention is following: a kind of plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, wherein, may further comprise the steps: be transferred to the wire drawing lines on metal material surface on the outer surface of transparent film sheet material through UV glue; Make the corresponding metal film through NCVM technology at the inner surface of film sheet material; Utilize on the plastic layer of inner surface attached to moulding of IML moulding process with film sheet material.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, wherein: in the UV transfer process, the UV glue spots is dropped in corrode levelling on the stainless steel mould surface that the wire drawing lines is arranged earlier; Film sheet material is covered on the UV glue, and extrudes unnecessary UV glue with rubber roller; Through ultraviolet light irradiation UV glue, form the UV transfer printing wire drawing coating of solidifying at film sheet material outer surface.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, and wherein: the stainless steel mould that will cover film sheet was placed 5 minutes in room temperature.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, and wherein: in the process of ultraviolet photo-curing UV glue, the temperature in the photo solidification machine is no more than 50 ℃.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, wherein: in the process of ultraviolet photo-curing UV glue, on film sheet material, place a clear glass.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, wherein: go out required color of product or pattern at NCVM metallic film surface printing.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, wherein: before the IML moulding process, film sheet material is become the shape of adaptive product appearance with mould heat drawing on thermoforming machine.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, and wherein: the temperature of used heating plate is arranged between 120-130 ℃ during heating.
Described plastic cement with the band metal appearance effect is realized the method for five metals wire drawing feel, wherein: unnecessary part around the moulding film sheet material after stretching is carried out die-cut removal.
A kind of plastic cement shell with metal appearance effect comprises the plastic layer that is positioned at bottom; On plastic layer, adhere to a transparent film sheet material; Wherein, the outer surface at film sheet material is provided with UV transfer printing wire drawing coating; The inner surface that adheres to mutually at film sheet material and plastic layer is provided with the NCVM metal coating.
Provided by the present invention a kind of with the plastic cement shell of metal appearance effect and the method for realization five metals wire drawing feel; Owing to adopted UV transfer printing wire drawing coating and NCVM metal coating respectively on the two sides of film sheet material; Wire drawing surface effect through UV transfer printing wire drawing coating is finer and smoother and true to nature more than the wire drawing surface effect that goes out through mold injection; Combine with the NCVM metal coating, metal-like and the glossiness of making product almost can reach the five metals wire drawing feel and the appearance of mixing the spurious with the genuine again; And the NCVM metal coating is whole and non-conductive, can not hoard electromagnetic field, and the radio-frequency performance and the ESD performance of communication product are not all had influence; In addition, NCVM technology has the characteristic of vacuum plating, also meets the environment protection requirement of manufacture craft more, is the substitute technology of Chrome-free plated item, not only the weight saving of product many, and the price of product also handware is cheaper relatively.
Description of drawings
Fig. 1 is the composition structure chart of plastic cement shell of the present invention.
Fig. 2 is the flow chart of plastic cement shell preparation method of the present invention.
Fig. 3 is the film film thermoforming process sketch map in the plastic cement shell of the present invention.
The specific embodiment
Below will combine accompanying drawing, specific embodiments of the invention and embodiment specify, and described specific embodiment in order to explain the present invention, is not to be used to limit the specific embodiment of the present invention only.
A kind of plastic cement shell of the present invention with metal appearance effect; Can be applicable in the plastic cement shell with radio-frequency enabled electronic product, one of its specific embodiment is an example with the back cover of mobile phone; As shown in Figure 1, comprise the plastic layer 110 that is positioned at the bottom and adhere to the transparent film sheet material 120 on it; Wherein, the outer surface at this film sheet material 120 is provided with UV (ultraviolet light polymerization) transfer printing wire drawing coating 130; The inner surface that adheres to mutually at this film sheet material 120 and plastic cement 110 is provided with NCVM (Non-conductive vacuum metallization, discontinuous coating technique or non-conductive electroplating technology) metal coating 140.
So-called UV transfer printing wire drawing coating 130; Refer to and utilize the UV transfer printing process; In conjunction with UV transfer printing glue and the not sticking characteristic of metal; To transfer to through the UV transfer printing process on the film sheet materials such as PET, PC or PMMA, thereby make whole coating at the wire drawing surface effect of stainless steel or aluminium alloy with wire drawing feel and appearance.
So-called NCVM metal coating 140 refers to employing and plates out films such as metal and insulating compound, utilizes each mutually discontinuous characteristic, obtains the effect that FINAL APPEARANCE has metal-like and do not have influence on unlimited communication transmission; Be exactly the PET film sheet material that UV transfer printing is good in the present invention, plate out film at the reverse side of UV coating with metal effect through NCVM technology.
The NCVM technology has combined traditional vacuum coating technology characteristics, can make the metal appearance effect of different colours, plays the function of beautifying surface of the work.The finished product that adopts the NCVM technology to make can be through the Hi-pot test of several ten thousand volts in high pressure ammeter, not conducting or not breakdown.Just because of its non-conductive property; When mobile phone or bluetooth earphone reception or emission signal; The coating that the electromagnetic field that produces is not conducted electricity is hoarded, thereby does not influence RF (radio frequency) performance and ESD (static discharge) performance of mobile phone, that is to say to make wireless product reach better reception effect; No noise more can not produce any influence to human body.From the electrical property angle, it can be through conductive test and electronic interferences test; The outward appearance metal-like of product is stronger simultaneously, also more meets the environment protection requirement of manufacture craft, is specially adapted to the 3C Product of signal receiving/transmission, especially at the antenna cover near zone.
Based on the plastic cement shell of above-mentioned band metal appearance effect, the invention allows for the method that a kind of plastic cement with the band metal appearance effect is realized five metals wire drawing feel, one of its specific embodiment, as shown in Figure 2, may further comprise the steps:
Step S310, the wire drawing lines that metal material is surperficial are transferred on the outer surface of transparent film sheet material through UV glue; Transparent film sheet material comprises film sheet materials such as PC, PET or TPU;
Step S320, make the corresponding metal film at the inner surface of film sheet material through NCVM technology;
Step S330, go out required color of product or pattern at NCVM metallic film surface printing;
Step S340, film sheet material become the shape of adaptive product appearance with mould heat drawing on thermoforming machine;
Step S350, utilize on the plastic layer of inner surface attached to moulding of IML moulding process with film sheet material.
So-called IML (IN MOLDING LABEL) moulding: the IML Chinese is the in-mode inserts injection moulding, be PET film sheet material that thermoforming is good place with injection mold in, through Shooting Technique with plastics and PET film sheet material attached to together a kind of technology; Because the patterned layer of printing has product surface and is not easy to be scratched, the bright-coloured characteristics not easy to fade of pattern color under PET film sheet material.Detailed process is: the surface is had UV transfer printing wire drawing, and the back side has NCVM plated film and screen printing pattern layer, is positioned in the injection mold through the PET film articles of sheet material after the thermoforming; Inject the plastic pellet of fusion in the injection mold that closes, mould cavity, die sinking after the mold cools down is taken out and is the plastic product that has five metals wire drawing effect.
At the plastic cement shell of band metal appearance effect of the present invention and realize that the step S310 of refinement is in the preferred implementation of five metals wire drawing feel method: earlier the UV glue spots being dropped in corrosion has on the stainless steel mould surface of wire drawing lines and levelling; The UV glue surface that the film sheet material of getting a transparent PC, PET or TPU covers levelling is called pad pasting; Through rubber pressure roller or rubber roller surplus glue is driven out of or extruded; Pass through ultraviolet photo-curing UV glue again, thereby on film sheet material, make lines coating with wire drawing feel and outward appearance.
Wherein, can to select rotary viscosity for use be that to solidify institute's energy requirement be 1200-1500mj/cm for 1000-2000mPa.s, every square centimeter in the time of 25 ℃ to said UV glue
2, initial solidification speed is 1 second ultraviolet photo-curing glue.
Need to prove; The necessary levelling of UV glue before the pad pasting; Must not bubble be clipped in wherein during pad pasting, the stainless steel mould that needs behind the pad pasting to cover film sheet was placed 5 minutes in room temperature, can make thus thickness evenly, dense materials, wire drawing realistic hand feeling, presentation quality higher the lines coating.
Be preferably, in the process of ultraviolet photo-curing UV glue, on film sheet material, place a clear glass and help heat absorption, in order to avoid the temperature distortion of film sheet material.
Further, as shown in Figure 3, the step S340 of refinement is:
Step S341, PET film sheet material is positioned on the counterdie of shaping mould, with heating plate with the roasting heat of PET film sheet material;
Step S342, remove heating plate;
Step S343, the drawing and forming mould is closed;
Step S344, open mould, PET film sheet material can be drawn into the shape of mould cavity.
Preferably, the temperature of used heating plate is arranged between 120-130 ℃ and gets final product during heating.
Further, can film sheet material be had through being die-cut into the shape of adaptive product appearance before being attached to plastic layer again with the die-cut removal of redundance around the moulding PET sheet material after stretching; At this moment, PET film sheet heat forming is accomplished.
Compare with plastic cement shell of the prior art and surface treatment method thereof; Provided by the present invention a kind of with the plastic cement shell of metal appearance effect and the method for realization five metals wire drawing feel; Owing to adopted UV transfer printing wire drawing coating and NCVM metal coating respectively on the two sides of film sheet material; Wire drawing surface effect through UV transfer printing wire drawing coating is finer and smoother and true to nature more than the wire drawing surface effect that goes out through mold injection; Combine with the NCVM metal coating, metal-like and the glossiness of making product almost can reach the five metals wire drawing feel and the appearance of mixing the spurious with the genuine again; And the NCVM metal coating is whole and non-conductive, can not hoard electromagnetic field, and the radio-frequency performance and the ESD performance of communication product are not all had influence; In addition, NCVM technology has the characteristic of vacuum plating, also meets the environment protection requirement of manufacture craft more, is the substitute technology of Chrome-free plated item, not only the weight saving of product many, and the price of product also handware is cheaper relatively.
Should be understood that; The above is merely preferred embodiment of the present invention, is not sufficient to limit technical scheme of the present invention, concerning those of ordinary skills; Within spirit of the present invention and principle; Can increase and decrease according to above-mentioned explanation, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection domain of accompanying claims of the present invention.
Claims (10)
1. the method with the plastic cement realization five metals wire drawing feel of band metal appearance effect is characterized in that, may further comprise the steps:
Be transferred to the wire drawing lines on metal material surface on the outer surface of transparent film sheet material through UV glue;
Make the corresponding metal film through NCVM technology at the inner surface of film sheet material;
Utilize on the plastic layer of inner surface attached to moulding of IML moulding process with film sheet material.
2. the plastic cement with the band metal appearance effect according to claim 1 is realized the method for five metals wire drawing feel, it is characterized in that:
In the UV transfer process, earlier the UV glue spots is dropped in and corrode on the stainless steel mould surface that the wire drawing lines is arranged and levelling;
Film sheet material is covered on the UV glue, and extrudes unnecessary UV glue with rubber roller;
Through ultraviolet light irradiation UV glue, form the UV transfer printing wire drawing coating of solidifying at film sheet material outer surface.
3. the plastic cement with the band metal appearance effect according to claim 2 is realized the method for five metals wire drawing feel, it is characterized in that: the stainless steel mould that will cover film sheet was placed 5 minutes in room temperature.
4. the plastic cement with the band metal appearance effect according to claim 2 is realized the method for five metals wire drawing feel, it is characterized in that: in the process of ultraviolet photo-curing UV glue, the temperature in the photo solidification machine is no more than 50 ℃.
5. the plastic cement with the band metal appearance effect according to claim 2 is realized the method for five metals wire drawing feel, it is characterized in that: in the process of ultraviolet photo-curing UV glue, on film sheet material, place a clear glass.
6. the method with plastic cement realization five metals wire drawing feel and appearance according to claim 1 is characterized in that: go out required color of product or pattern at NCVM metallic film surface printing.
7. the plastic cement with the band metal appearance effect according to claim 1 is realized the method for five metals wire drawing feel, it is characterized in that: before the IML moulding process, film sheet material is become the shape of adaptive product appearance with mould heat drawing on thermoforming machine.
8. the plastic cement with the band metal appearance effect according to claim 7 is realized the method for five metals wire drawing feel, and it is characterized in that: the temperature of used heating plate is arranged between 120-130 ℃ during heating.
9. the plastic cement with the band metal appearance effect according to claim 7 is realized the method for five metals wire drawing feel, it is characterized in that: unnecessary part around the moulding film sheet material after stretching is carried out die-cut removal.
10. the plastic cement shell with metal appearance effect comprises the plastic layer that is positioned at bottom; On plastic layer, adhere to a transparent film sheet material; It is characterized in that, UV transfer printing wire drawing coating is set at the outer surface of film sheet material; The inner surface that adheres to mutually at film sheet material and plastic layer is provided with the NCVM metal coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110206738XA CN102390216A (en) | 2011-07-22 | 2011-07-22 | Plastic shell with metallic appearance effect and method for realizing hardware wire-drawing hand feeling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110206738XA CN102390216A (en) | 2011-07-22 | 2011-07-22 | Plastic shell with metallic appearance effect and method for realizing hardware wire-drawing hand feeling |
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| CN102390216A true CN102390216A (en) | 2012-03-28 |
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| CN201110206738XA Pending CN102390216A (en) | 2011-07-22 | 2011-07-22 | Plastic shell with metallic appearance effect and method for realizing hardware wire-drawing hand feeling |
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| CN (1) | CN102390216A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950697A (en) * | 2012-10-30 | 2013-03-06 | 东莞市崇康电子有限公司 | A kind of UV transfer printing in-mold transfer printing decoration method |
| CN104859357A (en) * | 2015-04-24 | 2015-08-26 | 惠州Tcl移动通信有限公司 | Method for realizing IML metal texture through mold pressing and optical plating |
| CN105034499A (en) * | 2015-05-26 | 2015-11-11 | 深圳市中联讯科技有限公司 | Anti-ink-washout sheet production method |
| CN107097549A (en) * | 2017-03-20 | 2017-08-29 | 佛山市高明绿色德化工有限公司 | The technique and UV ink of a kind of utilization UV ink transfer metal wire-drawing effect film |
| CN108045323A (en) * | 2017-12-22 | 2018-05-18 | 广州市金钟汽车零件股份有限公司 | A kind of aluminium sheet decoration and its manufacturing method |
| CN108381851A (en) * | 2018-02-28 | 2018-08-10 | 江苏冠达通电子科技有限公司 | For mobile phone shell, the surface of shell processing method of notebook shell |
| CN114012954A (en) * | 2021-11-02 | 2022-02-08 | 东莞正广精密科技有限公司 | Double-layer texture process |
| CN115532562A (en) * | 2022-09-26 | 2022-12-30 | 新航涂布科技(苏州)有限公司 | Decorative material metal film spraying method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102950697A (en) * | 2012-10-30 | 2013-03-06 | 东莞市崇康电子有限公司 | A kind of UV transfer printing in-mold transfer printing decoration method |
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| CN104859357A (en) * | 2015-04-24 | 2015-08-26 | 惠州Tcl移动通信有限公司 | Method for realizing IML metal texture through mold pressing and optical plating |
| CN104859357B (en) * | 2015-04-24 | 2018-06-19 | 惠州Tcl移动通信有限公司 | A kind of method for realizing IML metal-likes by being molded and optics plating |
| CN105034499A (en) * | 2015-05-26 | 2015-11-11 | 深圳市中联讯科技有限公司 | Anti-ink-washout sheet production method |
| CN107097549A (en) * | 2017-03-20 | 2017-08-29 | 佛山市高明绿色德化工有限公司 | The technique and UV ink of a kind of utilization UV ink transfer metal wire-drawing effect film |
| CN108045323A (en) * | 2017-12-22 | 2018-05-18 | 广州市金钟汽车零件股份有限公司 | A kind of aluminium sheet decoration and its manufacturing method |
| CN108381851A (en) * | 2018-02-28 | 2018-08-10 | 江苏冠达通电子科技有限公司 | For mobile phone shell, the surface of shell processing method of notebook shell |
| CN114012954A (en) * | 2021-11-02 | 2022-02-08 | 东莞正广精密科技有限公司 | Double-layer texture process |
| CN115532562A (en) * | 2022-09-26 | 2022-12-30 | 新航涂布科技(苏州)有限公司 | Decorative material metal film spraying method |
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Application publication date: 20120328 |