KR20170037731A - Molding method using a nacre - Google Patents

Molding method using a nacre Download PDF

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Publication number
KR20170037731A
KR20170037731A KR1020150136497A KR20150136497A KR20170037731A KR 20170037731 A KR20170037731 A KR 20170037731A KR 1020150136497 A KR1020150136497 A KR 1020150136497A KR 20150136497 A KR20150136497 A KR 20150136497A KR 20170037731 A KR20170037731 A KR 20170037731A
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KR
South Korea
Prior art keywords
mother
release film
injection mold
resin layer
pearl
Prior art date
Application number
KR1020150136497A
Other languages
Korean (ko)
Other versions
KR101762571B1 (en
Inventor
김재경
김근하
김성훈
최정아
최원재
Original Assignee
인탑스 주식회사
김근하
김재경
아로 주식회사
플라텔코퍼레이션(주)
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Application filed by 인탑스 주식회사, 김근하, 김재경, 아로 주식회사, 플라텔코퍼레이션(주) filed Critical 인탑스 주식회사
Priority to KR1020150136497A priority Critical patent/KR101762571B1/en
Publication of KR20170037731A publication Critical patent/KR20170037731A/en
Application granted granted Critical
Publication of KR101762571B1 publication Critical patent/KR101762571B1/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
    • B29C45/14688—Coating articles provided with a decoration
    • 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
    • B29C45/14467—Joining articles or parts of a single article
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • 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
    • B29C2045/14713—Coating articles provided with a decoration decorations in contact with injected material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

A method for manufacturing an injection mold having a mother-piece according to the present invention comprises the steps of: a) preparing a release film provided with a mother-of-pearl member in a logo pattern shape on one side; and b) C) after the injection mold is closed, the molten synthetic resin is injected onto one side of the release film provided with the mother-of-pear member, D) removing the insert injection mold from the injection mold while opening the injection mold, and e) stripping and removing the release film from the extracted insert injection mold, By a simple process, it is possible to obtain a molded article made of a mother-of-pearl portion of a molded article (logo, surface decorative pattern, etc.), to have a stretchability in a mother- Can be achieved which is capable of processing the one at the curved surface, there is provided a method for manufacturing injection moldings with a mother-of-pearl to prevent cracking of the processed nacre into a curved surface.

Description

[0001] The present invention relates to a molding method using a nacre,

The present invention relates to a method of manufacturing an injection molded article having a mother-of-pearl, which is capable of manufacturing an injection-molded product having a simple process and an effect of a lacquer warping machine at low cost, The present invention relates to a method for producing an injection molded product.

Generally, molding and manufacturing a housing with a synthetic resin is easy to manufacture according to a desired shape, and can give various colors and feel through a printing process, and such molded parts are widely used today.

However, when such a component is made of only plastic resin, artificial feeling can not be concealed, and there is a limit to give a feeling of luxury.

Therefore, there is a need to develop a product so that manufactured parts can be made more luxurious while utilizing the advantages of a plastic resin product that can be easily manufactured.

In addition, the traditional lacquer ware, which is one of the traditional lacquer ware, is a traditional fine craft which has been applied to various household goods and ornaments including small furniture.

Especially, in case of lacquered lacquerware, it is impossible to mass-produce lacquerware because it is a craft which can be manufactured only after a long period of time, There are disadvantages that it can not be applied variously in everyday life and can not be easily purchased by the general public.

And, in general, mother-of-pearl accessory has been manufactured by cutting or sculpting techniques such as pearling (cutting mother-in-law and cutting out the mother-of-pearl in different colors) In addition to the difficulty of manufacturing the accessories, the cost of producing the product depends on the limited lacquer technician, so that the manufacturing cost has to be increased.

Conventionally, as a method for solving such a problem, a pre-decoration using a screen printing technique and a manufacturing method thereof have been proposed in Japanese Laid-Open Patent Publication No. 2002-11159 (2002.2.8).

However, the conventional method has a problem that it is very difficult to form a pattern or a pattern because it is necessary to attach the mother-of-pearl to the mother-of-pearl pattern or the pattern.

In addition, there is a problem in that it is not easy to form the mother-of-pearl itself into a curved surface, such as easily breaking or breaking by the physical force externally applied.

The present invention is capable of obtaining a molded article made of a mother-of-pearl portion of a molded article (logo, surface decorative pattern, etc.) by a simple process, and having a stretchability in a mother- And it is an object of the present invention to provide a method of manufacturing an injection-molded article having a mother-of-pearl that prevents cracks of mother-of-pearl processed into a curved surface.

A method for manufacturing an injection mold having a mother-piece according to the present invention comprises the steps of: a) preparing a release film provided with a mother-of-pearl member in a logo pattern shape on one side; and b) C) after the injection mold is closed, the molten synthetic resin is injected onto one side of the release film provided with the mother-of-pear member, D) removing the insert injection mold from the injection mold while opening the injection mold, and e) stripping and removing the release film from the extracted insert injection mold.

At this time, the step of preparing the release film provided with the mother-piece member according to the step a) of the present invention comprises the steps of: a-1) providing a release film made of silicone; and a-2) (A-3) laminating a first resin layer which imparts a stretchability to the surface of the mother-piece sheet; and a-4) a second step of providing a thermosetting property to the surface of the first resin layer, Laminating the first resin layer and the second resin layer on one side of the release film; laminating the first resin layer and the second resin layer on the first side of the release film; .

The first resin layer and the second resin layer may be formed of any one of PU (Polyurethane) and TPU (Thermoplastic Polyurethane).

And f) peeling off the release film, which is the step e), according to the present invention, and f) applying a protective film to the surface of the extrudate having the release film peeled off.

The effect produced by the method of manufacturing an injection-molded article according to the present invention is that a molded article made of a mother-of-pearl can be obtained as a part of a molded article (logo, surface decoration pattern, etc.) by a simple process, So that it is not only possible to process the mother-of-pearl into a curved curved surface, but also to prevent cracking of the mother-of-pearl processed into a curved surface.

Brief Description of the Drawings Fig. 1 is an exemplary view showing an embodiment of a method of manufacturing an injection-molded article having a mother-piece according to the present invention.
FIG. 2 is an exemplary view showing steps of preparing a release film provided with a self-supporting member in the form of a logo pattern according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, at the time of the present application, It should be understood that variations can be made.

The present invention relates to a method of manufacturing an injection-molded article using a mother-of-pearl, which can easily produce an injection-molded article having an effect such as a lacquer-like lacquer with a simple process and a low cost, Examples are as follows.

First, referring to FIG. 1, in step a), a release film 10 provided with a self-supporting member 20 in a logo pattern shape is prepared on one side.

In more detail, the release film 10 provided with the mother skin member 20 according to the step a) is provided in step a-1).

At this time, the release film 10 is preferably a silicon material having heat resistance and is provided in the form of a normal film.

In step a-2), the mother-of-pearl sheet 21 is laminated on one side of the release film 10.

At this time, the mother liquor sheet 21 is laminated on one side of the release film 10 provided in the step a-1), and the mother liquor sheet 21 is preferably made of a slice of a shell of a waste such as shellfish The present invention is not limited to this but artificial knitted fabric can be applied artificially and the release film 10 and the mother-of-baby sheet 21 are completely joined when the mother child's sheet 21 is laminated on the release film 10 But it is preferable to maintain the state of being bonded using the viscosity of the release film 10 which is a silicon material.

Then, the first resin layer 22, which imparts stretchability to the surface of the mother cane sheet 21, is laminated in step a-3).

At this time, the first resin layer 22 laminated on the surface of the mother-piece sheet 21 is made of a thermoplastic resin, and it is preferable that the first resin layer 22 is made of PU (Poly Urethane) or TPU (Thermoplastic Poly Urethane) It is preferable that the first resin layer 22 is integrally laminated on the mother-of-cord sheet 21 by thermal bonding.

Therefore, when stress is generated on the motherboard sheet 21 as the motherboard sheet 21 and the first resin layer 22 are integrally joined together as described above, the stress is dispersed through the first resin layer 22, The sheet 21 is given the stretchability and the bending property is improved.

In step a-4), a second resin layer 23 for imparting thermal adhesiveness to the surface of the first resin layer 22 is laminated.

At this time, the second resin layer 23 may be made of any one of soft PU (Poly Urethane) or TPU (Thermoplastic Poly Urethane), but it is not limited thereto and may be formed of the same material as the molded article to be injected later.

Accordingly, the second resin layer 23 is formed to integrate the mother-piece member 20 with the injection-molded article by heat. As the second resin layer 23 is laminated on the first resin layer 22, The member 20 has excellent thermal adhesiveness.

In step a-5), the motherboard sheet 21, the first resin layer 22, and the second resin layer 23, which are laminated on one side of the release film 10, The cutter member 20 is cut.

In this case, the mother skin member 20 is formed such that the mother skin member 20 remains only in the shape corresponding to the logo pattern on the mother skin member 21, the first resin layer 22, and the second resin layer 23, The mother skin member 20 which does not correspond to the logo pattern is removed by laser cutting.

Accordingly, the release film 10 provided with the self-supporting member 20 in the logo pattern shape is prepared on one side by the above process.

Next, in step b), the other side of the release film 10, which is not provided with the mother skin member 20, of the release film 10 prepared inside the open injection mold 30 is in contact with the inner surface of the injection mold 30 Accept.

At this time, it is preferable that the self-supporting member 20 is disposed in a portion of the injection mold 30 that forms a curved surface. Although not shown in the drawing, the vacuum adsorption method is preferably performed by using the release film 20 in the injection mold 30 Can be fixed.

Next, in step c), after the injection mold 30 is closed, the molten synthetic resin 41 is injected onto one side of the release film 10 provided with the mother skin member 20, (40).

At this time, due to the heat of the synthetic resin injected into the injection mold 30, the stretchability of the mother skin member 20 is increased by the first resin layer 22 and the thermal bonding property is also increased by the second resin layer 23 , The mother-of-pearl is integrally formed with the injected synthetic resin while being bent along the inner surface of the injection mold 30 without being damaged by cracks or the like.

Next, in step d), the insert injection mold 40 is taken out of the injection mold 30 while opening the injection mold 30. [

Here, the extraction process is the same as a normal insert injection process, and a detailed description thereof will be omitted.

Next, in step e), the release film 10 is peeled off from the inserted insert extrudate 40.

The above-described embodiment is integrally formed with the injection molded article while being molded into a curved surface, and an injection molded article in which steps are not generated between the base and the logo is produced.

Next, step f) applies the protective film 50 to the surface of the extrudate 40 from which the release film 10 has been peeled off.

The protective film 50 is preferably applied evenly over the entire surface of the exfoliated film 40 from which the release film 10 has been peeled so as to physically protect the extrudate 40, Promoting scattering and reflection of light so that the logo pattern expressed by the mother-of-pearl member becomes more visible.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: release film
20:
21: Head seat
22: First resin layer
23: second resin layer
30: Injection mold
40: insert injection molding
41: Synthetic resin
50: Shield

Claims (4)

a) preparing a release film provided with a self-supporting member in a logo pattern shape on one side;
b) accommodating the release film prepared inside the open injection mold so that the other side of the release film not provided with the mother-piece member is in contact with the inner surface of the injection mold;
c) after the injection mold is closed, injecting molten synthetic resin onto one side of the release film provided with the mother-of-pear member to manufacture an insert injection-molded article including mother-of-pearl;
d) extracting the insert injection mold from the injection mold while opening the injection mold; And
e) peeling and removing the release film from the taken-out insert insert molding.
The method according to claim 1,
The step of preparing the release film provided with the mother-piece member, which is the step a)
a-1) providing a release film that is a silicone material;
a-2) laminating a mother liquor sheet on one side of the release film;
a-3) laminating a first resin layer imparting stretchability to the surface of the mother-piece sheet;
a-4) laminating a second resin layer for imparting thermal adhesiveness to the surface of the first resin layer;
a-5) a step of laser cutting the mother-piece sheet, the first resin layer, and the second resin layer, which are laminated on one side of the release film, in a shape corresponding to the logo pattern to complete the mother- A method of manufacturing a molded article.
The method of claim 2,
The first resin layer and the second resin layer
(PU) or a thermoplastic polyurethane (TPU).
The method according to claim 1,
After the step of peeling and removing the release film as the step e)
f) applying a protective film to the surface of the extruded article from which the release film has been peeled.
KR1020150136497A 2015-09-25 2015-09-25 Molding method using a nacre KR101762571B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150136497A KR101762571B1 (en) 2015-09-25 2015-09-25 Molding method using a nacre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150136497A KR101762571B1 (en) 2015-09-25 2015-09-25 Molding method using a nacre

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Publication Number Publication Date
KR20170037731A true KR20170037731A (en) 2017-04-05
KR101762571B1 KR101762571B1 (en) 2017-08-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190111426A (en) * 2018-03-22 2019-10-02 김영렬 Manufacturing method of logo label

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4202490B2 (en) * 1998-11-13 2008-12-24 大日本印刷株式会社 Decorative molded products
JP2001096571A (en) * 1999-09-30 2001-04-10 Toyoda Gosei Co Ltd Method for molding resin molded article having skin layer
JP2011142858A (en) 2010-01-14 2011-07-28 Mci Engineering:Kk Engaging tool for cultivating shells
JP5438533B2 (en) 2010-01-26 2014-03-12 日本写真印刷株式会社 Decoration device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190111426A (en) * 2018-03-22 2019-10-02 김영렬 Manufacturing method of logo label

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Publication number Publication date
KR101762571B1 (en) 2017-08-01

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