KR101828486B1 - Film insert molding resin parts be employed hybrid printing and manufacturing method thereof - Google Patents

Film insert molding resin parts be employed hybrid printing and manufacturing method thereof Download PDF

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Publication number
KR101828486B1
KR101828486B1 KR1020160005274A KR20160005274A KR101828486B1 KR 101828486 B1 KR101828486 B1 KR 101828486B1 KR 1020160005274 A KR1020160005274 A KR 1020160005274A KR 20160005274 A KR20160005274 A KR 20160005274A KR 101828486 B1 KR101828486 B1 KR 101828486B1
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KR
South Korea
Prior art keywords
printing
film
printing layer
layer
insert injection
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Application number
KR1020160005274A
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Korean (ko)
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KR20170085753A (en
Inventor
정민화
김승현
Original Assignee
유한회사 대구특수금속
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Priority to KR1020160005274A priority Critical patent/KR101828486B1/en
Publication of KR20170085753A publication Critical patent/KR20170085753A/en
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Publication of KR101828486B1 publication Critical patent/KR101828486B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688—Coating articles provided with a decoration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688—Coating articles provided with a decoration
    • B29C2045/14737—Coating articles provided with a decoration decorations printed on the insert by a digital imaging technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

In the present invention, a real color printing layer (4) is formed on the back side of a plastic film of a film insert injection molding resin part by digital scintillation printing, screen printing is added to secure mass productivity and reliability, And the product is completed through the film insert injection molding of the composite composite printing film base material 20 to form the film insert injection molding resin part 30 ) Can be made into a differentiated product by improving the freedom of print formation and design such as actual inspection.

Description

TECHNICAL FIELD [0001] The present invention relates to a film insert injection molding resin component and a manufacturing method thereof,

The present invention relates to a film insert injection molding resin component, and more particularly, to a film insert injection molding resin component such as an automobile smart key, a heater control button and the like, a film insert injection molding resin component capable of ensuring mass production and reliability, And a manufacturing method thereof.

In general, automotive parts such as automobile smart keys or heater control buttons, which are in contact with the user, or interior and exterior parts of household appliances are easily damaged and worn out even if they are coated, even though they are coated.

Such a resin part may form an injection product through film insert injection molding, and there are prior art documents mentioned below as an example thereof.

First, a printed layer of various patterns is formed on the back surface of a plastic film, the plastic film is inserted into an insert injection mold, and the product is completed by insert injection molding by resin injection molding.

Such a film insert injection-molded resin part has a printed layer formed on the back surface or inner surface of a durable plastic film, so that the printed layer is not discolored or worn out even though the user uses it frequently and for a long time, There is an easy advantage.

However, since the printing layer of such a film insert injection-molded resin component, that is, the printing layer formed on the back surface of the film is printed and formed by the screen printing method, there is a disadvantage that the detailed image or pattern such as actual photographing can not be implemented well. In other words, there are restrictions on design expression.

1 shows an example of a print film (a) of a film insert injection molding resin component in which a print layer is formed on the back side of a film by a conventional screen printing method and a finished product (b) which is insert injection molded by the print film. And the design of the system.

Therefore, if the printing surface of a film insert injection molding resin part such as automobile parts or household electric appliances is implemented with an image or pattern like a real image, it will be able to get a great response from a lot of people.

Patent Registration No. 10-1560275 entitled " Method for Forming Decorative Design Patterns for Resin Injection Moldings "

Accordingly, it is an object of the present invention to provide a film insert injection molding resin component capable of ensuring mass production and reliability as well as print formation such as a real shot in a film insert injection molding resin product such as an automobile smart key, a heater control button, and the like.

According to the present invention, there is provided a method of manufacturing a film insert injection molding resin part, which comprises the steps of: curing a back side of a translucent plastic film (2) by performing a real color printing and curing using a digital photograph printer using an ultraviolet curable ink A transparent primer printing layer 6 is laminated on the printing paper 4 and a primer printing layer 6 is formed on the primer printing layer 6 by using a screen printing machine using a urethane ink, The screen printing layer 8 is formed so as to be the top surface of the base color, and then the binder composite layer 10 is laminated to prepare the composite composite printing film substrate 20,

Characterized in that the injection molding resin material (12) is molded and demolded by inserting an injection resin liquid into the insert injection mold after inserting the fusion composite printing film base material (20), thereby manufacturing a film insert injection molding resin part (30) A method of manufacturing a film insert injection molded resin component to which a composite printing is applied.

In another aspect of the present invention, there is provided a method of manufacturing a resin composition for injection molding of a film insert, the method comprising the steps of: (a) inspecting the surface of the translucent plastic film (2) After the color printing layer 4 is formed on the actual printing color printing layer 4, the actual printing color upper surface screen printing layer 8, and then the binder layer 10 is laminated to prepare a composite composite printing film substrate 20,

Characterized in that the injection molding resin material (12) is molded and demolded by inserting an injection resin liquid into the insert injection mold after inserting the fusion composite printing film base material (20), thereby manufacturing a film insert injection molding resin part (30) A method of manufacturing a film insert injection molded resin component to which a composite printing is applied.

In the present invention, the primer coating layer 6a is first coated on the rear surface of the plastic film 2 before the real color printing layer 4 is formed, thereby manufacturing the film insert injection molding resin part 30 to which the composite printing is applied You may.

The present invention relates to a film insert injection molding resin component which is formed by forming a real image color printing layer on the back side of a plastic film on the back side of a plastic film and by screen printing for ensuring mass productivity and reliability, It is possible to improve the degree of freedom of printing and design such as inspection of insert injection molding resin parts and to produce differentiated products.

Fig. 1 shows an example of a print film (a) of a film insert injection molding resin component in which a print layer is formed on the back side of a film by a conventional screen printing method and a finished product (b)
FIG. 2 is a laminated sectional sectional view of a film insert injection molding resin part according to an embodiment of the present invention,
Fig. 3 is a laminated sectional sectional configuration of a film insert injection molding resin part according to another embodiment of the present invention; Fig.
FIG. 4 is a sectional view illustrating a laminated cross-sectional structure of a film insert injection molding resin part according to another embodiment of the present invention;
5 is a view showing a manufacturing process of a film insert injection molding resin component to which fusion printing is applied according to an embodiment of the present invention,
6 is a view showing a process for producing a printed film base material in which digital real printing and screen printing are fused together according to an embodiment of the present invention, and an example for producing a finished product by injection injection molding with the fusion composite printing film base material.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figs. 2 to 4 are sectional views illustrating the laminate cross-sectional isolation of the film insert injection molding resin component 30 according to the first, second, and third embodiments of the present invention.

5 is a view illustrating a process of manufacturing a film insert injection molding resin component to which fusion printing is applied according to an embodiment of the present invention, and FIG. 6 is a flowchart illustrating a manufacturing process of a digital still life printing and screen printing according to an embodiment of the present invention, A process for producing a film substrate, and an example for producing a finished product which is injection-molded by injection molding with the fused composite printing film substrate.

In the present invention, a composite print film substrate 20 is formed by fusing digital true-false printing and screen printing. Then, the fused composite print film substrate 20 is subjected to film insert injection molding to produce a film insert injection- (30).

Digital photographic printing is a digital printing method in which image or pattern printing such as a real image is printed. However, when printed on a transparent plastic film surface, the original color It is not manifested properly.

In addition, in the present invention, even if a digital film is formed on a plastic film to be molded, which is inserted into an insert injection mold during injection molding of the insert during the injection molding of the plastic film, cracks, peeling and resin melt flow It is difficult to print on a plastic film.

In the present invention, actual printing is performed on the plastic film 2 through digital photographing printing capable of various and sophisticated image representations, and not only the original color reproduction but also the digital photograph printed plastic film is injection-molded through the insert injection mold, Cracks or peeling of the resin, and a jamming phenomenon caused by the resin melt flow do not occur.

The plastic film 2 to be used in insert injection molding in the present invention is a translucent film made of a synthetic resin such as PET (polyethylene terephthalate) or PC (polycarbonate) having heat resistance and chemical resistance and has a melting point higher than the melting point of the insert injection resin, And can withstand the injection temperature during injection molding. In case of PC (Poly Carbonate) material, it has a melting point of about 245 ° C.

In the first embodiment of the present invention, the digital copying printer 4 is formed on the back side of the plastic film 2 as described above, except that a water-soluble ink which is weak to heat is not used. In the present invention, the ink used in the digital photo printer uses an ultraviolet curable ink for digital printing having heat resistance as well as curing adhesion.

In the first embodiment of the present invention, a digital photographing printer using an ultraviolet curing ink for digital printing is used to carry out a fine real color printing desired by an operator on the rear surface of a plastic film 2, The ultraviolet rays are irradiated with ultraviolet rays to be cured together to form a cured color image printed layer 4 on the back side of the transparent plastic film 2 (step (a) in Fig. 5).

6 (a) shows an example in which a microscopic color printing layer 4 is printed on a plastic film 2 by digital color printing.

In the present invention, a transparent primer printing layer 6 is laminated on a real color printing layer 4 with a screen printing machine after the real printing color printing layer 4 is cured and bonded. The primer printing layer 6 is a means for promoting adhesion of the actual color printing layer 4 and for enhancing adhesion with the actual screen color upper surface screen printing layer 8 to be formed later.

After the primer printing layer 6 is formed, a screen printing base layer 8 is formed on the primer printing layer 6 by using a screen printing machine using heat resistant polyurethane based ink, (Step S2 in Fig. 5). Thus, on the one side and the other side of the transparent primer print layer 6, the test print color layer 4 and the actual background color upper surface screen print layer 8 are separately arranged so that the two print layers are not mixed on the same surface.

The actual screen color top screen printing layer 8 is a true color original color top surface provided so that the color or shape of the real color printing layer 4 that has been digitally color printed according to the present invention can be dyed and is applied on the primer printing layer 6 A preferable example of the actual background color image is an achromatic color which is a base on which the shape and color of the real color printing layer 4 can be properly expressed, and more preferably, it is white.

The ink of the present invention used in the actual background color top surface screen printing layer 8 should have good heat resistance and polyurethane based two-component reactive ink. The polyurethane-based two-liquid reaction type ink is composed of an ink, a curing agent and a solvent, and improves the moldability.

In the digital composite printing using the ultraviolet curing ink, the screen reinforcement printing using the polyurethane ink is performed on the digital printing printing using the real printing printing and the screen printing. Therefore, the printing pressure and the injection during the injection molding are improved. Cracks or peeling of the ink, and a puddle phenomenon due to the resin melt flow are hardly caused by heat.

The fusion printing of the digital photograph printing and the screen printing according to the present invention can realize a sophisticated image and pattern, as well as securing productivity and reliability.

After the actual background color top screen printing layer 8 is formed, the binder layer 10 for adhesion by using a screen printing machine is laminated on the actual screen color upper surface screen printing layer 8, The base material 20 is produced.

6 (b), the plastic film 2 on which the real image is formed by the digital photographing printing is applied to the primer printing layer 6 through the screen printing process (step S2 of FIG. 5) 8, and a binder layer 10 are sequentially formed.

Then, in the present invention, as shown in the process chart of FIG. 5, the thus prepared composite composite printing film substrate 20 is formed into a shape that can be mounted in the insert injection mold through a process such as preliminary molding (S3 process) and cutting (S4 process) And make them.

6 (c) shows a state in which the preforming (S3 step) in which the Fusion composite printing film substrate 20 of the present invention is thermoformed in accordance with the shape of a resin part is completed, and FIG. 6 (d) And shows a state in which the composite print film substrate 20 is cut.

Then, the fused composite printing film substrate 20, which is manufactured in a form that can be mounted in the insert injection mold, is inserted into the cavity of the insert injection mold on one side, closed with the insert injection mold on the other side, and injected with the injection resin solution through the injection injection path Insert injection molding (step S5 of FIG. 5) is performed.

By the injection molding temperature and the injection pressure generated by performing the insert injection molding in this way, the fusion composite printed film base material 20 and the injection molded resin product 12 are integrated through thermal bonding, the film insert injection molding resin component 30 of the present invention as in e) is obtained.

In the first embodiment of the present invention described above, the fusion printing is applied to the plastic film 2, the actual color printing layer 4, the primer printing layer 6, the actual background color upper surface screen printing layer 8 ), A binder layer (10), and an injection-molded product (12) are laminated in this order.

 As a second embodiment of the present invention, which is another example of the present invention, in forming the fused composite print film substrate 20, before forming the real color print layer 4 on the back side of the plastic film 2 as shown in Fig. 3 The primer coating layer 6a is first coated.

That is, in the second embodiment of the present invention, as shown in FIG. 3, the composite printing is applied to the plastic film 2, the primer coating layer 6a, the real color printing layer 4, the primer printing layer 6, An upper surface screen printing layer 8, a binder layer 10, and an injection-molded article 12 are laminated.

In the second embodiment of the present invention, a structure in which the real color printing layer 4 is interposed between the primer coating layer 6a and the primer printing layer 6 to reinforce and enhance the adhesiveness of the printing layer 4 to be.

Further, in the present invention, it is possible to implement without using the primer printing layer 6 between the real printing color printing layer 4 and the real printing ground color upper screen printing layer 8 by appropriate combination of printing inks.

That is, as in the third embodiment of the present invention, the plastic film 2, the primer coating layer 6a, the actual color printing layer 4, the actual background color upper surface screen printing layer 8, The binder layer 10, and the injection-molded product 12 are laminated on a glass substrate.

Also, as a modified example of the third embodiment of the present invention, the primer coating layer 6a formed on the back surface of the plastic film 2 may be omitted. At this time, even if injection molding is carried out through the insert injection mold by the combination of the printing inks used in the fusion printing of the real color color printing layer 4 and the actual color background top surface screen printing layer 8, cracking or peeling of the ink, This is possible when no flow phenomenon occurs.

That is, as a modification of the third embodiment of the present invention, the plastic film 2, the real color printing layer 4, the actual background color upper surface screen printing layer 8, the binder layer 10 and the injection- The constitution of the film insert injection molding resin part 30 is possible.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of claims and equivalents thereof.

(2) - plastic film (4) - actual color printing layer
(6) - Primer printing layer (8) - Actual background color Top surface Screen printing layer
(10) - Binder layer (12) - Injection molded resin
(20) -fused composite printing film substrate (6a) - primer coating layer
(30) - Film insert injection molding resin parts

Claims (4)

A method of manufacturing a film insert injection molded resin component,
A real color printing layer 4 is formed on the back side of the translucent plastic film 2 through a real color printing using a digital copying printer using a UV curable ink for digital printing having heat resistance and curing adhesion, ,
A transparent primer printing layer 6 is laminated on a real color printing layer 4, and on the primer printing layer 6, a real white background top surface screen printing layer 8 are formed on the transparent primer printing layer 6 so that the actual color printing layer 4 and the actual screen ground color upper surface screen printing layer 8 are separately arranged on one side surface and the other side surface of the transparent primer printing layer 6,
A binder layer (10) is laminated on the actual screen color top screen printing layer (8) to prepare a composite printing film substrate (20)
Characterized in that the injection molding resin material (12) is molded and demolded by inserting an injection resin liquid into the insert injection mold after inserting the fusion composite printing film base material (20), thereby manufacturing a film insert injection molding resin part (30) Method of manufacturing a film insert injection molded resin component with composite printing. delete delete delete
KR1020160005274A 2016-01-15 2016-01-15 Film insert molding resin parts be employed hybrid printing and manufacturing method thereof KR101828486B1 (en)

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KR1020160005274A KR101828486B1 (en) 2016-01-15 2016-01-15 Film insert molding resin parts be employed hybrid printing and manufacturing method thereof

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KR101828486B1 true KR101828486B1 (en) 2018-02-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102300175B1 (en) * 2020-09-29 2021-09-09 (주)성수기전 Insert-mold laminating method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7101634B2 (en) * 2019-03-29 2022-07-15 本田技研工業株式会社 Resin molded product
KR102097993B1 (en) * 2019-04-05 2020-05-26 유한회사 대구특수금속 In mold electronics molding mounted connector terminals hving waterproofing and durability

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101025430B1 (en) * 2009-12-23 2011-03-28 삼성프린-텍(주) Method for the printing method and that product of the transfer resin film which is in parallel with uv off-set printing and silk screen printing
JP2012071554A (en) 2010-09-29 2012-04-12 Toppan Printing Co Ltd Decorative film and decorative molded product

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101025430B1 (en) * 2009-12-23 2011-03-28 삼성프린-텍(주) Method for the printing method and that product of the transfer resin film which is in parallel with uv off-set printing and silk screen printing
JP2012071554A (en) 2010-09-29 2012-04-12 Toppan Printing Co Ltd Decorative film and decorative molded product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102300175B1 (en) * 2020-09-29 2021-09-09 (주)성수기전 Insert-mold laminating method

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