CN2936728Y - Hardening film structure for inner mould decoration jet forming - Google Patents
Hardening film structure for inner mould decoration jet forming Download PDFInfo
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- CN2936728Y CN2936728Y CN 200620120563 CN200620120563U CN2936728Y CN 2936728 Y CN2936728 Y CN 2936728Y CN 200620120563 CN200620120563 CN 200620120563 CN 200620120563 U CN200620120563 U CN 200620120563U CN 2936728 Y CN2936728 Y CN 2936728Y
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Abstract
The utility model relates to an technical field of an in-mold decoration (IMD), in particularly to an improvement of a hardened film structure for an exterior finish with a hardened layer in the IMD. The utility model aims to avoid cracking on the hardened film in tension when the hardened film is subjected to deep forming of the IMD process so that the IMD process is extensively used in the industry and the improved production yield, efficiency, colorization and the efficacy of less environment pollution are available in the hardened film structure of the IMD. The hardened film structure for the IMD is characterized in that the structure comprises a plastic film 1 allowing hot-pressing and forming for the IMD and a hardened layer 2 which has a half-hardened finish and is arranged on the plastic film 1 allowing hot-pressing and forming.
Description
Technical field
The utility model belongs to ejecting forming decoration in mould [In-mold decoration (IMD)] technical field, means that especially a kind of superficies that are applied to ejecting forming decoration in mould (IMD) have the cured film structural improvement of hardened layer.
Background technology
Press, traditional plastic processing technology can't satisfy the requirement of light, thin, the short and small consumption electronic products of modernized product gradually, and meets environmental consciousness.Because the advantage of ejecting forming decoration in mould [In-mold decoration (IMD)] is suitable for the plastic product of 3C, household electrical appliances, LOGO inscription plate and auto parts, particularly present popular phone housing and various instrument face plate.Ejecting forming decoration in mould (IMD) can replace many traditional processing procedures, as decorative appearance methods such as hot transfer printing, spraying, printing, plating.Especially need multicolour image, backlight, Related product.Ejecting forming decoration in mould (IMD) is a kind of new relatively automatic production process, compare with other technology, ejecting forming decoration in mould (IMD) can simplify production stage and building block is disassembled in minimizing, therefore can produce fast and save time and cost, also have simultaneously and improve the quality, increase the complexity of image and improve the durability of product advantage, be applied on the product appearance, ejecting forming decoration in mould (IMD) is a kind of method of full blast, it is to impose printing on film surface, hot-forming, die-cut, last and plastic tie synthesis type, exempt secondary operation program and manpower man-hour thereof, especially generally backlight at need, many curved surfaces, rib is interfered ... wait printing to spray paint processing procedure when can't handle, more be to use the opportunity of ejecting forming decoration in mould (IMD) processing procedure.With No. 00462914 " the in-mold film decoration ejection molding method that can the completely cut off electromagnetic interference " patent of bulletin that obtains the TaiWan, China patent is example [patent announcement data reference on November 11 calendar year 2001], and this utility model system comprises the following step: step 1: decorating film: in transparent adhesive tape sheet film one side printshop palpus pattern; Step 2: coated shielding layer: on the film that this printed decoration is finished, apply a metal shielding layer that can completely cut off electromagnetic interference again; Step 3: film preformed: will apply the film that shielding layer finishes and insert mould, according to the accessory design to be thermoformed into required outward appearance; Step 4: cut, prune and be positioned in the injection shaping die: the film that preformed is finished cuts, is trimmed to the size of ejection formation die cavity, it is inserted and is fixed in the ejection formation die cavity again; Step 5: ejection formation: with Jet forming machine heat is melted resin and penetrate, heat is melted be integral with film after resin solidifies, at last finished product is taken out in the ejection formation die cavity, promptly finish step of the present utility model in molded film printing one side.No. the 00532059th, TaiWan, China patent announcement " have concurrently EMI covers and the shell moulding manufacture method of incrustation " patent [on 05 11st, 2003 bulletin data with reference to], it mainly is to see through step procedure such as A. moulding plastics film step, B. moulding EMI shielding layer step, C. coating following layer step and the outer step of D. moulding, and the EMI shielding layer can be shaped between plastic sheeting skin and the inner plastic, in view of the above, a plastic EMI covers that fruit is good, the EMI shielding layer can wearing and tearing, weatherability, resistance to chemical reagents, finished product aesthetic in appearance; Moreover, wherein, but this plastic sheeting straight forming has predetermined decorative cover, and EMI covers series of strata and must combine with the decorative cover of plastic sheeting (predetermined figure line of moulding or color on plastic sheeting) once-forming, can effectively reduce cost in view of the above and improve manufacturing efficient, to meet the actual demand of industrial circle.
As previously mentioned, on portable electronic product, the outermost layer on surface must need hardened layer destroys product to prevent surperficial scratch outward appearance or sense of worth, it is to re-use spraying method hardened layer is coated with up after the manufacturing of object profile is finished that a kind of mode is arranged traditionally, but the pollution that the method processing procedure is loaded down with trivial details, yield is low and can produce solvent air, this is a kind of tool environmental pollution and expensive processing procedure of spending.
Utilization ejecting forming decoration in mould (IMD) processing procedure, use hot moldable thin film can replace that tradition is pasted mould spray Wealthy, hot pressing is gold stamping and electroplate, this kind processing procedure more is widely used in today and comprises on car interior-exterior parts and the portable electric product as mobile phone, computer, game machine ... etc.Ejecting forming decoration in mould (IMD) processing procedure use hot moldable thin film through modes such as printing, coating, dyeing to reach the effect of beautiful decoration and colorize, cut, hot-forming, deburring, insert and penetrate ejection formation in the die cavity through mould again, bottom is compatible plastic basis material, the internal layer surface of this hot moldable thin film can be processed into color, metal covering, wood grain, etc. various pattern, because the pattern colorant is positioned over the internal layer of hot moldable thin film, has the effect that is not destroyed.Other has a kind of more advantageous method to be to use hot moldable thin film, earlier on the thin film exterior layer surface, be coated with hardened layer, yet this hardened layer must be when hot-forming work stretches, can not chap, but, in this way made hardened layer highest hardness will be subjected to draw ratio (as 1.2 or 1.3 times) restriction, right at present on the market not the cured film material of good function be supplied as its disappearance, a difficult problem of demanding urgently overcoming for industry.
Summary of the invention
The utility model grinds the disappearance of wound people in view of located by prior art, and long-pending its actual for many years professional knowledge that manufactures and designs of being engaged in laminate product after constantly studying, improveing, has of the present utility model grinding to create successfully eventually, makes known publicly.
The purpose of this utility model is to provide a kind of cured film when ejecting forming decoration in mould (IMD) processing procedure deep forming, crack performance in the time of can avoiding hardening the face stretching, impel ejecting forming decoration in mould (IMD) processing procedure to be used in a large number, and reach the cured film structure that is applied to ejecting forming decoration in mould that improves the effect of producing yield, efficient, colorize and minimizing environmental pollution by industrial quarters.
A kind of cured film structure that is applied to ejecting forming decoration in mould is characterized in that: described structure comprises the hot pressing moulding plastics film 1 that is used for ejecting forming decoration in mould, and is located at hot pressing moulding plastics film 1 surface and is the semi-harden hardened layer 2 in surface.
The beneficial effects of the utility model are: mainly include the hot pressing moulding plastics film that is used for ejecting forming decoration in mould, and the semi-harden hardened layer of being located on the aforementioned hot pressing moulding plastics film surface in surface constitutes, when this creation is applied to in-mold decorating injection molding manufacture procedure when making degree of depth drawing and forming, can not produce the crack performance of cementation zone, this creation can be after finishing degree of depth drawing and forming, again this hardened layer is given pansclerosis, so can impel ejecting forming decoration in mould (IMD) processing procedure to be used in a large number, and reach raising production yield by industrial quarters, efficient, the effect of colorize and minimizing environmental pollution.
Description of drawings
Fig. 1 is the utility model embodiment front elevation.
Fig. 2 is the utility model embodiment sectional drawing.
[primary clustering symbol description]
(1) hot pressing moulding plastics film
(2) the semi-harden hardened layer in surface
The specific embodiment
For reaching the technological means of the aforementioned purpose of the utility model, enumerate an embodiment now, and cooperate graphic explanation as after, your juror can by to architectural feature of the present utility model and the effect reached, obtain better understanding.
The utility model embodiment that sees also Fig. 1 and Fig. 2 just, sectional drawing, the utility model includes the hot pressing moulding plastics film (1) that is used for ejecting forming decoration in mould as seen from the figure, and be located at aforementioned hot pressing moulding plastics film (1) surface be the surface semi-harden hardened layer (2) constitute, when the utility model is applied to in-mold decorating injection molding manufacture procedure when making degree of depth drawing and forming, can not produce the crack performance of cementation zone.The utility model can give pansclerosis with this hardened layer again after finishing degree of depth drawing and forming, to reach the hardness of expection.So can impel ejecting forming decoration in mould (IMD) processing procedure to be used in a large number, improve the effect of producing yield, efficient, colorize and reducing environmental pollution to reach by industrial quarters.
Foregoing the utility model, it mainly produces the semi-harden hardened layer in surface earlier [as coating one deck hardened layer coating on the hot pressing moulding plastics film surface that ejecting forming decoration in mould is used, make this hardened layer coating become the cementation zone of semi-harden (B stage) with ultraviolet (UV) again, this hardened layer paint thickness is between between 5-15um], making this cementation zone is the surperficial hardening film that can not chap when being used in deep forming, again that this is semi-harden cementation zone gives pansclerosis [as when waiting to finish deep forming after finishing degree of depth drawing and forming, re-use the fully irradiation of ultraviolet (UV) or electron beam (EB), to reach the situation of sclerosis fully].In the utility model, can adopt ultraviolet (UV) or electron beam (EB) to shine hardenable coating composition, this hardenable coating composition includes monomer, polymer, diluent, additive, then adds the sensitization initiator in case of necessity.This coating can be coated on the film substrate and (get final product hot-forming plastic sheeting), if desired, then gives suitable drying; Thereafter, present that liquid coating is penetrated suitable energy via UV or EB illumination and spectrum forms semi-harden state.
Moreover, the utility model to measure or differentiate hardened layer coating whether enter into can be used in ejecting forming decoration in mould (IMD) processing procedure semi-harden (B stage) state, can differentiate rapidly via following method:
1. solvent resistance test, (for example: ethyl acetate) 1cc drops on the hardened layer coating surface under the room temperature state with solvent under room temperature state, treat solvent volatilizees the back fully with dry Populus deltoides wiping, detects whether slight corrosion or the generation of atomizing situation are arranged on the hardened layer coating surface.If have corrosion or atomizing situation to produce then be semi-harden state.If corrosion or atomizing situation do not produce then are the pansclerosis state fully.
With semi-harden aspect upwards again with hand with film doubling 180 degree down, with the be full of cracks state of 100 times microscopic examination broken lines, line produces then is semi-harden state if chap in the broken line position.If having the be full of cracks line to produce, the broken line position is the pansclerosis state.
3. firmly scraped a line with hard thing (as: nail) at semi-harden laminar surface, if having groove mark to occur and have powder to be scraped then be expressed as semi-harden state.If do not have groove mark to occur and do not have powder to be scraped then be expressed as the pansclerosis state.
Again, after the semi-harden HTHP moulding of hardened layer film in the utility model surface via ejecting forming decoration in mould (IMD) processing procedure, can shine by different ultraviolets (UV) illuminance energy, make hardened layer enter into sclerosis (C stage) state fully by semi-harden (B stage) state.
In the following embodiments, we use single plant or multiple sensitization initiator can make hardened layer coating not by bond completely under different spectrum.With thickness 178 μ m PC (Polycarbonatefilm) film coated acryl is cured coating, uses ultraviolet (UV) lamp energy 800mj/cm2 irradiation, when coating thickness is that 5-15 μ m can reach the 1H/500g standard hardness when hardening fully.As use mercury ultraviolet (UV) lamp (200mj/cm2) to do partly sclerosis (Bstage), under room temperature state, solvent (ethyl acetate) 1cc dropped on the hardened layer coating surface under the room temperature state, treat solvent volatilizees the back fully with dry Populus deltoides wiping, detects whether slight corrosion or the generation of atomizing situation are arranged on the hardened layer coating surface.This can guarantee that this hardenability is can be accepted to be used on special ejecting forming decoration in mould (IMD) purposes.When semi-harden (B stage) film is folded, with semi-harden aspect upwards again with hand with film doubling 180 degree down, with the be full of cracks state of 100 times microscopic examination broken lines, line produces then is semi-harden state if broken line chaps.In special IMD utilization, be can be received then.After this semi-harden (B stage) film thermoforming via ejecting forming decoration in mould (IMD) processing procedure, use other mercury formula ultraviolet (UV) lamp to shine fully, hardness rises to more than the F/500g, and the line that do not chap in the deep forming district produces, and so reaches the utility model purpose of design.
In sum, the utility model disclosed a kind of " being applied to the cured film structure of ejecting forming decoration in mould " was not had by former times, also do not seen on the domestic and international disclosed publication, and managed and have the patent requirement of novelty, again the utility model located by prior art disappearance of really can forgoing, and reach purpose of design, also filled " can be novel for what utilize on the industry " patent requirement that part meets novel patent, filing an application in the whence in accordance with the law, sincerely please your juror give examination, and vouchsafe this case patent, the true feeling moral is just.
The above person of thought, it only is of the present utility model one preferable possible embodiments, be not in order to arrest limit scope of the present utility model, such as be familiar with this skill personage, the equivalent structure that utilization the utility model specification and claim are done changes, and ought to be included in the claim of the present utility model.
Claims (3)
1. cured film structure that is applied to ejecting forming decoration in mould, it is characterized in that: described structure comprises the hot pressing moulding plastics film (1) that is used for ejecting forming decoration in mould, and is located at hot pressing moulding plastics film (1) surface and is the semi-harden hardened layer (2) in surface.
2. the cured film structure that is applied to ejecting forming decoration in mould as claimed in claim 1 is characterized in that: the thickness of this hardened layer (2) is between between 5-15um.
3. the cured film structure that is applied to ejecting forming decoration in mould as claimed in claim 1 is characterized in that: also have the hardened layer (2) that is surperficial semi-harden on the other side surface of hot pressing moulding plastics film (1) that this ejecting forming decoration in mould is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120563 CN2936728Y (en) | 2006-06-22 | 2006-06-22 | Hardening film structure for inner mould decoration jet forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120563 CN2936728Y (en) | 2006-06-22 | 2006-06-22 | Hardening film structure for inner mould decoration jet forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2936728Y true CN2936728Y (en) | 2007-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620120563 Expired - Fee Related CN2936728Y (en) | 2006-06-22 | 2006-06-22 | Hardening film structure for inner mould decoration jet forming |
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| CN (1) | CN2936728Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129290A (en) * | 2011-11-24 | 2013-06-05 | 仁宝电脑工业股份有限公司 | Production method of workpiece and workpiece with three-dimensional pattern |
-
2006
- 2006-06-22 CN CN 200620120563 patent/CN2936728Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129290A (en) * | 2011-11-24 | 2013-06-05 | 仁宝电脑工业股份有限公司 | Production method of workpiece and workpiece with three-dimensional pattern |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20100622 |