CN101850592A - In-mould decoration forming method and molded product - Google Patents
In-mould decoration forming method and molded product Download PDFInfo
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- CN101850592A CN101850592A CN200910301455A CN200910301455A CN101850592A CN 101850592 A CN101850592 A CN 101850592A CN 200910301455 A CN200910301455 A CN 200910301455A CN 200910301455 A CN200910301455 A CN 200910301455A CN 101850592 A CN101850592 A CN 101850592A
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Abstract
The invention relates to an in-mould decoration forming method. The method comprises the following steps: providing an attaching film; sending the attaching film in an in-mould decoration forming mould to ensure that one selected area of the attaching film sticks to the mould impression; performing first mould-closing, wherein the parting surface of the male mould does not contact with the parting surface of the female mold; injecting glue to the mould impression; performing second mould-closing to ensure that the parting surfaces of the male mould and female mold contact with each other and one selected part of the attaching film is cut off from the attaching film; stopping glue injection after filling; and opening the mould to take the formed molded product out. The invention also relates to a molded product prepared by the method of the invention.
Description
Technical field
The mechanograph that the present invention relates to a kind of in-mold decoration forming method and make with this method.
Background technology
The appearance surfaces application mode branch of general article, automobile, household electrical appliances, consumer electronic product etc. has liquid application, powder body coating, electrostatic spraying and electrophoretic painting several, carry out Surface Machining in the application mode and can't handle pattern fully, and when coating has the big plate base of plane and side, because the side dimension of substrate and planar dimension are very greatly different in comparison, so when proceeding to the side of coated substrate when spraying paint, considerable spraying paint will accumulate on side.Via time-evolution, a kind of Improvement type spin coater is applied to the coating of base material, and this kind spin coater utilizes centrifugal force that liquid paint is dripped in the middle part, horizontal base plate surface that desire applies, and again the substrate horizontal plane is carried out the coating of coat via rotating at a high speed.But its problem is the end at substrate turnover edge and is easy to generate coat phenomenon in uneven thickness.
Along with the progress of appearance design and consumer improve for the standard that requires of outward appearance, the housing that is used for various products is also stressed surface and the changeable multicolour pattern with high glaze, known is it to be done practise the surface lacquer that claims the piano baking vanish in order to the practice that forms the high-gloss surface housing, but must being put in finished product, its process carries out several program of spraying paint in the dust free room, leave standstill a couple of days again with drying, not only elongate manufacturing time thus, and owing to carry out after the multi-coat lacquer, can cause that the thickness of baking vanish on the product is unequal or blocked up to cause be full of cracks, pass through the multi-coat lacquer operation in addition, the overall yield of its final finished reduces, and causes the significantly raising of cost.Another kind reaches the manufacture method on high gloss surface for the forming mould inner surface is carried out mirror finish, makes its mould inner surface height light, again with the raw material ejection formation.The made product surface hardness of method can't reach the abrasion performance standard of general industry thus, is easy to cause scratch and surface brightness to reduce.
Be the high gloss that reaches the surface, changeable multicolour pattern and surperficial wear-resistant requirement; prior art has the high glaze multicolour pattern with the in-mold decoration forming transfer printing and reaches above-mentioned requirements; wherein be to adopt decorating film, described decorating film mainly comprises carrier layer, release layer, hard protective layer (hardened layer), ink lay and adhesion coating.Wherein said carrier layer is used to carry the effect of printing ink and transfer printing high glaze multicolour pattern, is used for above-mentioned other each layer transfer printing is put in place on the moulding plastic in mould, and after to be formed the finishing, carrier layer is peeled off from the moulding plastic by the effect of release layer.After carrier layer was peeled off, hard protective layer and the ink lay with multicolour pattern were adhered to the plastic surface by adhesion coating.The hard protective layer also needs usually after overheated baking or ultraviolet ray irradiation sclerosis become transparent material, causes high gloss effect and plays the protection plastic and ink lay is not worn and scrapes the effect of damage.Can be about the preceding case of this kind technology referring to No. the 3546034th, Japan Patent, No. 3895896, No. the 350820th, Taiwan patent, No. the 5993588th, United States Patent (USP).The decorating film that described technology discloses has release layer and hardened layer; and when the moulding die sinking; carrier layer and release layer are peeled off from the hard protective layer that adheres to the plastic surface; hardened layer on decorating film after plastic after the moulding and the transfer printing and ink lay can't trim; and the thickness of hardened layer is unable to undergo more serious external force scratch usually in 5 microns (5 μ m).After using for a long time, hardened layer can be worn away, and cause glossiness to reduce, even multicolour pattern also can be worn.And release layer and carrier layer can't be utilized after peeling off again, and cost of manufacture is higher.
Another known techniques, with reference to No. 5800759 patent case of United States Patent (USP) and Japanese Patent No. 4-10923 number, United States Patent (USP) has disclosed for No. 5800759 and has utilized a conveyer 30 to place one to cut mould 10 film 7, and the described mould 10 that cuts is in order to be cut into suitable shape or size with described film 7.Then, the film 7 of described conveyer 30 after with described cutting takes out by cutting in the mould 10, and is placed on and penetrates in the mould 1.Because the described film 7 that penetrates mould 1 that is positioned at is not positioned, so when carrying out injection, the pressure of penetrating that flows and produced of injection easily makes described film 7 produce displacement or fold, described film 7 thereby can't complete packet be overlying on plastic, and because film 7 need be cut into suitable shape or size earlier, the shape that it must have after certain thickness could keep cutting so can cause the increase of cost.With reference to shown in Figure 11, it shows No. 5800759 made product sectional schematic diagram of case before the described U.S., wherein, the edge 710 of plastic 700 is not coated fully by decorating film 800 and exposes, the procedure of processing complexity of this forming method, the quality of finished product instability and not attractive in appearance.
Summary of the invention
In view of above content, be necessary to provide that a kind of procedure of processing is simple, the stay-in-grade in-mold decoration forming method of finished product and the mechanograph made with described method.
A kind of in-mold decoration forming method may further comprise the steps: an adhered film is provided; Adhered film is sent into the in-mold decoration forming mould, a selection area of adhered film is posted by in the die cavity; Carry out the matched moulds first time, do not contact between the die joint of male model and the die joint of master mold; Die cavity is carried out injection; Carry out the matched moulds second time, the die joint of male model is contacted with the die joint of master mold, and the selection area of described adhered film is downcut on adhered film; Filling is finished, and stops injection; Formed molded product is taken out in die sinking.
A kind of mechanograph, be that the above-mentioned in-mold decoration forming method of utilization is made, described mechanograph comprises base material and adhered film, described base material has one first circumferential end face, described adhered film has one second circumferential end face, and second circumferential end face of wherein said adhered film and first circumferential end face of described base material are substantially flush.
Description of drawings
The present invention is further illustrated in conjunction with the specific embodiment below with reference to accompanying drawing.
Fig. 1 is the generalized section of the employed mould of in-mold decoration forming method of the present invention.
Fig. 2 is the generalized section of employed another mould of in-mold decoration forming method of the present invention.
Fig. 3 is the mould matched moulds for the first time of Fig. 1, does not contact between male model and the master mold, and injection is carried out in preparation.
Fig. 4 is the mould matched moulds second time of Fig. 3, finish injection, and the cutting part of male model downcuts adhered film.
Fig. 5 is the flow chart of first embodiment of in-mold decoration forming method of the present invention.
Fig. 6 is the flow chart of second embodiment of in-mold decoration forming method of the present invention.
Fig. 7 A makes the stereogram of mechanograph for in-mold decoration forming method of the present invention.
The cutaway view of Fig. 7 B for being got along the 7B-7B hatching of Fig. 7 A.
Fig. 8 A makes the stereogram of another mechanograph for in-mold decoration forming method of the present invention.
The cutaway view of Fig. 8 B for being got along the 8B-8B hatching of Fig. 8 A.
The cutaway view of Fig. 9 A for being got along the 9-9 hatching of Fig. 7 B shown the structure of in-mold decoration forming of the present invention with adhered film.
The cutaway view of Fig. 9 B for being got along the 9-9 hatching of Fig. 7 B, show in-mold decoration forming of the present invention with the decorative layer of adhered film by structure that several ink laies form.
Figure 10 is the structure chart generalized section of another embodiment of adhered film of the present invention.
Figure 11 is according to No. 508059760 made product sectional schematic diagram of case before the United States Patent (USP).
The specific embodiment
See also Fig. 1, the present invention is to use a kind of in-mold decoration forming mould to carry out in-mold decoration forming, and described in-mold decoration forming mould comprises a film feeder 15, a master mold 25 and a male model 30.
Described film feeder 15 comprises a pair of film delivery wheel and a pair of directive wheel.Described the film delivery wheel is divided into the mould upstream and downstream, is used for tracting film.Described directive wheel is used for the direction of transfer channeling conduct to film.
Master mold 25 is offered die cavity 22 in one side.Master mold 25 runs through from the one side of tool die cavity 22 to another side relatively offers the plurality of rows air drain, is used for linking to each other with vacuum extractor with the thin film adsorbs that will be sent into by film feeder 15 in the inwall of die cavity 22.
Offer a groove 24 on the die joint of male model 30, on the die joint of described male model 30, be provided with a cutting part 26.Described male model 30 comprises the die cavity 22 corresponding auxiliary sections with master mold 25.The auxiliary section roughly in the central the position offer the injection molding mouth that runs through male model 30 and be used for the plastics of molten condition are injected in the die cavity 22 of master mold 25.See also Fig. 2, be understandable that, also can offer a groove 24 ' around the described die cavity 22, and then around described die cavity 22, form a cutting part 26 ' in the die joint upper edge of described master mold 25.
See also Fig. 5, first embodiment of in-mold decoration forming method of the present invention may further comprise the steps:
Step S102 provides an adhered film 100;
Step S104 uses film feeder 15 traction adhered films 100 and makes adhered film 100 deliver between master mold 25 and the male model 30 and its compacting is positioned on the die joint of master mold 25 along the die joint of master mold 25.Make a selection area of adhered film 100 abut in the inwall of the die cavity 22 of master mold 25, as shown in Figure 3.Better embodiment is the die cavity 22 that adhered film 100 is adsorbed in master mold 25 by the method that the die cavity 22 to master mold 25 vacuumizes.
Step S106 carries out the matched moulds first time, but this moment male model 30 the die joint of die joint and master mold 25 between do not contact as yet.
Step S108 carries out injection, carries out the 90%-99.5% of injection to moulding resin filling total amount by male model 30 sides, and preferred version is 99.5%, forms the mechanograph base material; Be attached to adhered films 100 in the die cavity 22 and adhere to the surface of mechanograph base material, as shown in Figure 4.
Step S110, carry out the matched moulds second time, contact between the die joint that makes male model 30 and the die joint of master mold 25, in the matched moulds remaining charging quantity is carried out the injection filling in the second time, simultaneously, under the extruding of the die joint of male model 30, the selection area that the cutting part 26 of male model 30 will adhere to the adhered film 100 of mechanograph substrate surface downcuts on adhered film 100, and the adhered film 100 on itself and the film feeder 15 is broken away from.
Step S112, filling is finished, and stops injection.
Step S114, cooling.
Step S116, die sinking ejects mechanograph, can obtain the mechanograph that surface attachment has adhered film 100; Simultaneously, film feeder 15 shifts out the part of adhered film 100 in described molding cycle between male and female mould 30,20, and begins next molding cycle.
See also Fig. 6, second embodiment of in-mold decoration forming method of the present invention may further comprise the steps:
Step S202 provides a continuous adhered film 100;
Step S204 uses the continuous adhered film 100 of film feeder 15 tractions and makes adhered film 100 deliver between master mold 25 and the male model 30 and its compacting is positioned on the die joint of master mold 25 along the die joint of master mold 25.And a selection area that makes adhered film 100 abut in master mold 25 die cavity 22 in, as shown in Figure 3.Mould is provided with a cutting part 26 or 26 '.
Step S206 carries out matched moulds.
Step S208 carries out injection, and the mechanograph base material is formed on the adhered film 100 in the die cavity 22, as shown in Figure 4.
Step S210, the selection area that utilizes the cutting part 26 or 26 ' of described mould will adhere to the adhered film 100 of mechanograph substrate surface downcuts on continuous adhered film 100, and itself and continuous adhered film 100 are broken away from.
Step S212, filling is finished, and stops injection.
Step S214, cooling.
Step S216, die sinking ejects the mechanograph base material, can obtain the mechanograph that surface attachment has adhered film 100.
Above-mentioned in-mold decoration forming method utilizes film feeder to carry out automatic film feeding adhered film, and then the continuous film feeding of realization adhered film, and directly in mould, cut, not only can obtain firm coloration, nonabradable working of plastics, and can realize continuous automatic production, production efficiency improves, the quality of finished product is improved, and increase effect attractive in appearance.
Please refer to Fig. 7 A, 7B, utilize above-mentioned in-mold decoration forming method to make a mechanograph 10, described mechanograph 10 comprises a base material 200 and an adhered film 100, described base material 200 has an end face 201 and a lateral margin 202 centers on described end face 201, described adhered film 100 is attached on the described base material 200, and coats described end face 201 fully.
Please refer to Fig. 8 A, 8B, utilize above-mentioned in-mold decoration forming method to make another mechanograph 20, described mechanograph 20 comprises a base material 300 and an adhered film 500, described base material 300 has an end face 301 and a lateral margin 302 centers on described end face 301, described adhered film 500 is attached on the described base material 300, and coats described end face 301 and described lateral margin 302 fully.
In the present embodiment, described adhered film 500 has one second circumferential end face 501, described base material 300 has one first circumferential end face 303, second circumferential end face 501 of described adhered film 500 is connected mutually with described first circumferential end face 303, and first circumferential end face 303 of second circumferential end face 501 of described adhered film 500 and described base material 300 is substantially flush.
Please refer to the cutaway view of Fig. 9 A for being got along the 9-9 hatching of Fig. 7 B, described adhered film 100 comprises a base layer 102, a decorative layer 104 and an adhesion layer 106.
At described base layer 102 inner surfaces, but be formed with the decorative layer 104 of display pattern and color etc.See also Fig. 9 B, decorative layer 104 is to be formed on base layer 102 by some ink laies 1041,1042 and 1043 usefulness screen paintings, and the thickness of each ink lay is between 0.005 millimeter to 0.02 millimeter.In addition, also can utilize vacuum vapour deposition, vacuum splashing and plating method etc. provide one by one or more metallic diaphragms of making in aluminium, chromium, copper, nickel, indium, the tin as described decorative layer 104, this decorative layer 104 can make molded article surface present metallic luster.
Described adhesion layer 106 has the effect that described adhered film 100 is combined with mechanograph base material 200, and preferably uses the material as described adhesion layer 106 such as acroleic acid resin, nitrocellulose resin, polyurethane resin, chlorinated rubber resin, vinyl chloride-vinyl acetate co-polymer resin, polyamide resin, polyester resin, epoxy resin, poly-carbonic acid resin, alkene resin, acrylic nitrile-butadiene-alkene-styrene resin.Described adhesion layer 106 is so that obtain resultant effect preferably in tackness and printing back aspect dry.The method that forms described adhesion layer 106 can be used any general printing processes such as for example intaglio printing, screen painting and hectographic printing, perhaps for example sprays, method such as brushing.
In the present embodiment, the base layer 102 of described adhered film 100 is transparent or translucent, is used to manifest the pattern and the color and luster of decorative layer 104.
Adhered film 100 among the present invention also can only comprise base layer 102 and adhesion layer 106.Described adhesion layer 106 is attached to described base material 200, and described base layer 102 is positioned at the opposite side of adhesion layer 106 with respect to base material 200, and then utilizes transparent base layer 102 to manifest the true qualities of base material 200.It is evident that described base layer 102 also can be made by colorful material, it makes the moulding product show the color of described base layer 102 after being attached at base material 200 surfaces.
See also Figure 10, utilize above-mentioned in-mold decoration forming method to make the adhered film 120 that mechanograph 10 can comprise another aspect and be attached on the described base material 200.Described adhered film 120 comprises a base layer 122, one first decorative layer 124, one second decorative layer 128 and an adhesion layer 126, described adhesion layer 126 is attached to described base material 200, described first decorative layer 124 is between base layer 122 and adhesion layer 126, described base layer 122 is positioned at the opposite side of first decorative layer 124 with respect to adhesion layer 126, and described second decorative layer 128 is positioned at the upper surface of base layer 122.First decorative layer 124 and second decorative layer 128 are that some ink laies form on base layer 122 with screen painting, and the thickness of each ink lay is between 0.005 millimeter to 0.02 millimeter.
Previous embodiment is only enumerated for the limited of the numerous embodiments of the present invention; therefore; by extended other embodiment of design philosophy of the present invention; especially the variation that does not break away from design philosophy of the present invention of shape, size and assembly arranged aspect all should be thought content that claim of the present invention is protected.
Claims (29)
1. an in-mold decoration forming method is characterized in that, may further comprise the steps:
One adhered film is provided;
Adhered film is sent into the in-mold decoration forming mould, a selection area of adhered film is posted by in the die cavity;
Carry out the matched moulds first time, do not contact between the die joint of male model and the die joint of master mold;
Die cavity is carried out injection;
Carry out the matched moulds second time, the die joint of male model is contacted with the die joint of master mold, and the selection area of described adhered film is downcut on adhered film;
Filling is finished, and stops injection;
Formed molded product is taken out in die sinking.
2. in-mold decoration forming method as claimed in claim 1 is characterized in that: described second time, matched moulds was to carry out when injection is filled to the 90%-99.5% that needs charging quantity.
3. in-mold decoration forming method as claimed in claim 1 is characterized in that: described adhered film comprises a base layer and an adhesion layer.
4. in-mold decoration forming method as claimed in claim 3 is characterized in that: described adhered film also comprises a decorative layer, and described decorative layer is between described base layer and adhesion layer.
5. in-mold decoration forming method as claimed in claim 3 is characterized in that: described base layer is to be made by one or more macromolecular material of Merlon (PC), PETG (PET), polymethyl methacrylate (PMMA), oriented polypropylene (OPP) (OPP), polyvinyl chloride (PVC).
6. an in-mold decoration forming method is characterized in that, may further comprise the steps:
One continuous adhered film is provided;
Described continuous adhered film is sent into the in-mold decoration forming mould, a selection area of adhered film is posted by in the die cavity, wherein said mould is provided with a cutting part;
Carry out matched moulds;
Die cavity is carried out injection;
The cutting part that utilizes described mould downcuts the selection area of described adhered film on described continuous adhered film;
Formed molded product is taken out in die sinking.
7. in-mold decoration forming method as claimed in claim 6 is characterized in that: described adhered film comprises a base layer and an adhesion layer.
8. in-mold decoration forming method as claimed in claim 7 is characterized in that: described adhered film also comprises a decorative layer, and described decorative layer is between described base layer and adhesion layer.
9. in-mold decoration forming method as claimed in claim 7 is characterized in that: described base layer is to be made by one or more macromolecular material of Merlon (PC), PETG (PET), polymethyl methacrylate (PMMA), oriented polypropylene (OPP) (OPP), polyvinyl chloride (PVC).
10. a mechanograph is that the described in-mold decoration forming method of utilization claim 1 is made.
11. mechanograph as claimed in claim 10, it is characterized in that: described mechanograph comprises base material and adhered film, described base material has one first circumferential end face, described adhered film has one second circumferential end face, and second circumferential end face of wherein said adhered film and first circumferential end face of described base material are substantially flush.
12. mechanograph as claimed in claim 10 is characterized in that: described adhered film comprises a base layer and an adhesion layer.
13. mechanograph as claimed in claim 12 is characterized in that: described adhered film also comprises one first decorative layer, and described first decorative layer is between described base layer and adhesion layer.
14. mechanograph as claimed in claim 13 is characterized in that: described adhered film also comprises one second decorative layer, and described second decorative layer is positioned at the upper surface of described base layer.
15. mechanograph as claimed in claim 12 is characterized in that: described base layer is to be made by one or more macromolecular material of Merlon (PC), PETG (PET), polymethyl methacrylate (PMMA), oriented polypropylene (OPP) (OPP), polyvinyl chloride (PVC).
16. a mechanograph is that the described in-mold decoration forming method of utilization claim 6 is made.
17. mechanograph as claimed in claim 16, it is characterized in that: described mechanograph comprises base material and adhered film, described base material has one first circumferential end face, described adhered film has one second circumferential end face, and second circumferential end face of wherein said adhered film and first circumferential end face of described base material are substantially flush.
18. mechanograph as claimed in claim 17 is characterized in that: described adhered film comprises a base layer and an adhesion layer.
19. mechanograph as claimed in claim 18 is characterized in that: described adhered film also comprises one first decorative layer, and described first decorative layer is between described base layer and adhesion layer.
20. mechanograph as claimed in claim 19 is characterized in that: described adhered film also comprises one second decorative layer, and described second decorative layer is positioned at the upper surface of described base layer.
21. mechanograph as claimed in claim 18 is characterized in that: described base layer is to be made by one or more macromolecular material of Merlon (PC), PETG (PET), polymethyl methacrylate (PMMA), oriented polypropylene (OPP) (OPP), polyvinyl chloride (PVC).
22. a mechanograph is that the described in-mold decoration forming method of utilization claim 1 is made, described mechanograph comprises:
One base material;
One adhered film is attached at described base material, and described adhered film comprises:
One base layer, one first decorative layer and an adhesion layer, described adhesion layer is attached to described base material, described first decorative layer is between base layer and adhesion layer, described first decorative layer comprises some ink laies, and the thickness of each ink lay of first decorative layer is between 0.005 millimeter to 0.02 millimeter.
23. mechanograph as claimed in claim 22 is characterized in that: described first decorative layer is made by screen painting.
24. mechanograph as claimed in claim 22 is characterized in that: described adhered film also comprises:
One second decorative layer, described second decorative layer are positioned at the base layer upper surface and described second decorative layer comprises some ink laies, and the thickness of each ink lay of second decorative layer is between 0.005 millimeter to 0.02 millimeter.
25. mechanograph as claimed in claim 24 is characterized in that: described second decorative layer is made by screen painting.
26. a mechanograph is that the described in-mold decoration forming method of utilization claim 6 is made, described mechanograph comprises:
One base material;
One adhered film is attached at described base material, and described adhered film comprises:
One base layer, one first decorative layer and an adhesion layer, described adhesion layer is attached to described base material, described first decorative layer is between base layer and adhesion layer, described first decorative layer comprises several ink laies, and the thickness of each ink lay of first decorative layer is between 0.005 millimeter to 0.02 millimeter.
27. mechanograph as claimed in claim 26 is characterized in that: described first decorative layer is made by screen painting.
28. mechanograph as claimed in claim 26 is characterized in that: described adhered film also comprises:
One second decorative layer, described second decorative layer are positioned at the base layer upper surface and described second decorative layer comprises several ink laies, and the thickness of each ink lay of second decorative layer is between 0.005 millimeter to 0.02 millimeter.
29. mechanograph as claimed in claim 28 is characterized in that: described second decorative layer is made by screen painting.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910301455A CN101850592A (en) | 2009-04-02 | 2009-04-09 | In-mould decoration forming method and molded product |
| US12/732,141 US8668860B2 (en) | 2009-04-02 | 2010-03-25 | Plastic article and method of manufacturing the same |
| JP2010081186A JP5129290B2 (en) | 2009-04-02 | 2010-03-31 | In-mold decorative molding method and molded product |
| US14/144,394 US20140113113A1 (en) | 2009-04-02 | 2013-12-30 | Plastic article |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910301312.5 | 2009-04-02 | ||
| CN200910301455A CN101850592A (en) | 2009-04-02 | 2009-04-09 | In-mould decoration forming method and molded product |
Publications (1)
| Publication Number | Publication Date |
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| CN101850592A true CN101850592A (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910301455A Pending CN101850592A (en) | 2009-04-02 | 2009-04-09 | In-mould decoration forming method and molded product |
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| CN (1) | CN101850592A (en) |
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| CN104553237A (en) * | 2013-10-11 | 2015-04-29 | 陈文成 | Manufacturing and forming method of composite material |
| CN105711020A (en) * | 2016-01-22 | 2016-06-29 | 卓达新材料科技集团有限公司 | Organic glass decorative sheet provided with pattern |
| CN113021771A (en) * | 2021-02-25 | 2021-06-25 | 东风延锋汽车饰件系统有限公司 | Low-pressure injection molding skin cutting mold structure and using method thereof |
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Application publication date: 20101006 |