KR20170015624A - In mold decoration film and method for fabricating the same - Google Patents
In mold decoration film and method for fabricating the same Download PDFInfo
- Publication number
- KR20170015624A KR20170015624A KR1020150107399A KR20150107399A KR20170015624A KR 20170015624 A KR20170015624 A KR 20170015624A KR 1020150107399 A KR1020150107399 A KR 1020150107399A KR 20150107399 A KR20150107399 A KR 20150107399A KR 20170015624 A KR20170015624 A KR 20170015624A
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- Prior art keywords
- release film
- layer
- coating layer
- semi
- finished product
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- 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
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B29C2045/14696—Coating articles provided with a decoration transparent decorated inserts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Disclosed is an IMD film used in an IMD (in-mold decoration) operation in which a product is formed by injection molding and a pattern formed by printing is formed on the surface of a product, and a method of manufacturing an IMD film. The disclosed IMD film is an inorganic material coating layer which is laminated on a base release film and a base release film and cured by sol or gel state or ultraviolet irradiation, And a primer layer which is laminated on the inorganic material coating layer and has a pattern formed by printing and a component which increases the adhesion strength by being laminated on the printing layer. The material of the inorganic coating layer may be at least one resin selected from the group consisting of a silane-based resin and a siloxane-based resin, and a resin contained in the inorganic coating layer by absorbing ultraviolet light A photopolymerization initiator. The base release film is separated and removed from the inorganic material coating layer after the IMD operation.
Description
The present invention relates to an IMD film for use in in-mold decoration (IMD) and a method of manufacturing the IMD film.
IMD (in mold decoration) is a method of embedding a film laminated with a printing pattern in a mold when injection molding a plastic product or a ceramic product, etc., and injection molding and printing on the surface of a plastic product or a ceramic product Refers to a technique of transferring a pattern, and an IMD film refers to a film used in IMD. IMD film is widely used for the surface decoration and surface protection of cases of smart phones, notebook PCs, digital cameras, and other cases of household appliances, cosmetic containers, and automobile parts. The IMD film generally comprises a release film, a hard coat layer laminated on the release film, a print layer laminated on the hard coat layer, and a primer layer for enhancing the adhesion between the print layer and the resin injected into the mold do.
Conventional IMD films require a semi-hardening process by heat or light irradiation in order to keep the hard coating layer in a formless state during its production and prevent the machine from being contaminated due to the excessive adhesion property of the hard coat layer .
The heat curing method is a method in which an isocyanate-based thermosetting initiator is added to the hard coat layer material and cured by applying heat, and the surface hardness of the hard coat layer is lowered compared with the semi-curing method by light irradiation, The surface protection of the applied injection molding product may be insufficient. On the other hand, it is difficult to control the degree of light irradiation appropriately by the light irradiation semi-curing method, so that the hard coating layer can be excessively cured before injection molding, and thus, when the IMD film is wound in a roll form, The yield of the IMD film good product may be reduced or a crack may be generated on the surface of the injection molded product to which the IMD is applied.
On the other hand, the conventional IMD film further includes a primer layer for enhancing the adhesion between the hard coat layer and the print layer, which is semi-cured by heat or light irradiation. Therefore, the step of laminating the primer layer on the hard coat layer is required, so that the productivity is lowered and the cost is increased.
The present invention provides an IMD film which does not require a process of semi-curing the IMD film prior to application to the IMD work, and has improved followability and hardness to the product shape, and a method of manufacturing the IMD film.
The present invention also provides an IMD film which does not require a primer layer for enhancing adhesion between a coating layer for protecting a printing layer and a printing layer, and a method of manufacturing the IMD film.
The present invention relates to an IMD film used in an IMD (in mold decoration) operation in which a product is formed by injection molding and a pattern formed by printing is formed on the surface of the product, wherein a base release film An inorganic material coating layer which is laminated on the base release film and is cured by sol or gel state or ultraviolet light irradiation; and an inorganic material coating layer laminated on the inorganic material coating layer, A printing layer formed by the printing, and a primer layer laminated on the printing layer and containing a component for increasing the adhesion, wherein the material of the inorganic coating layer is a silane-based resin resin and a siloxane-based resin, and at least one resin selected from the group consisting of a resin contained in the inorganic material coating layer by absorbing ultraviolet rays, Comprises a photopolymerization initiator, wherein the base release film provides a film IMD (in mold decoration film) is separated off from the inorganic material coating layer after the IMD operation.
The material of the inorganic material coating layer may not contain an organic material.
The IMD film of the present invention may further include a cover release film which is laminated on the primer layer and is separated and removed from the primer layer before the IMD operation.
The inorganic material coating layer and the print layer may be directly adhered to each other without interposing another layer for increasing the adhesive force between the two.
The present invention also relates to a first release film and an inorganic material coating layer laminated on the base release film and cured by sol or gel state or ultraviolet ray irradiation, And a second release film laminated on the inorganic material coating layer, a third release film, a third release film laminated on the third release film, and a component for increasing the adhesive strength A second semi-finished product having a primer layer which is laminated on the primer layer and a printed layer in which a pattern is formed by printing, a second semi-finished product manufactured from the first semi-finished product, A second release film separating the first release film and the second release film so as to separate the second release film from the first release film and the second release film so that the side of the inorganic material coating layer exposed when the second release film is separated is adhered to the exposed side surface of the print layer, And a first semi-finished product and a second semi-finished product laminated step for laminating the separated first semi-finished product and the second semi-finished product, wherein the material of the inorganic material coating layer is a silane- At least one resin selected from the group consisting of siloxane-based resins, and a photopolymerization initiator that absorbs ultraviolet light to polymerize the resin contained in the inorganic material coating layer.
The material of the inorganic material coating layer may not contain an organic material.
The method for producing an IMD film of the present invention may further comprise a third release film separating step of separating the third release film after the first semi-finished product and the second semi-finished product lapping step.
The first semi-finished product manufacturing step may include: applying a coating agent for applying a liquid coating agent to one side of the first release film; drying the coating agent applied to the first release film to evaporate the solvent; A drying step of forming the inorganic material coating layer, and a second release film attaching step of attaching the second release film to the exposed side of the inorganic material coating layer.
The step of applying the coating may include applying the liquid coating material using one of a slot die, a comma roller, and a micro gravure roller.
The second semi-finished product manufacturing step may include a primer layer forming step of forming the primer layer on the third release film, and a printing step of forming the print layer by gravure printing on the exposed side of the primer layer And a layer forming step.
The IMD film of the present invention does not require a process of semi-curing the inorganic material coating layer of the IMD film before inserting it into a mold for application to IMD (in-mold decoration) operation. Therefore, the flexibility of the inorganic material coating layer is high, so that even in the case of a product having a complicated three-dimensional shape, the followability to the product shape is excellent and the IMD work productivity is improved.
In the present invention, due to the characteristics of the material forming the inorganic material coating layer, the inorganic material coating layer is sufficiently cured even by irradiating ultraviolet rays after the IMD work, and the surface hardness of the product is greatly improved. In addition, when applying a liquid coating agent to form an inorganic coating layer, the thickness of the inorganic coating layer can be easily controlled by controlling the flow rate of the coating agent, whereby the hardness of the product surface can be easily adjusted.
Since the IMD film of the present invention can be produced by a roll-to-roll process, the productivity is high, and the thickness uniformity and flatness of the IMD film are excellent. Further, on the material properties of the inorganic coating layer, a separate primer layer is not further applied to increase the adhesive force between the inorganic coating layer and the printing layer. Therefore, the manufacturing method is simple, the productivity is improved, and the cost is reduced.
The IMD film of the present invention is excellent in abrasion resistance, chemical resistance, water repellency and antifouling properties, and can be added with various surface characteristics by adding a functional material to a coating agent for forming an inorganic material coating layer .
In the IMD process using the IMD film of the present invention, when an inorganic material coating layer is cured by irradiating ultraviolet rays after injection molding of the product, a product coated with an IMD film on only a specific part of the product is formed by a method such as masking It is possible.
1 is a cross-sectional view of an IMD film according to an embodiment of the present invention.
FIGS. 2 to 7 sequentially illustrate the method for manufacturing the IMD film of FIG. 1. FIG.
Hereinafter, an IMD film according to an embodiment of the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings. The terminology used herein is a term used to properly express the preferred embodiment of the present invention, which may vary depending on the intention of the user or operator or the custom in the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents throughout this specification.
1 is a cross-sectional view of an IMD film according to an embodiment of the present invention. Referring to FIG. 1, the
The printing layer (9) is a layer formed by printing on the surface of the injection-molded product. The
The inorganic
When a silane-based resin or a siloxane-based resin is applied as the material of the inorganic
The
7) may further include a cover release film 7 (see FIG. 7) that is laminated to the
FIGS. 2 to 7 sequentially illustrate the method for manufacturing the IMD film of FIG. 1. FIG. 2 to 7, the IMD film according to the embodiment of the present invention can be continuously produced in a roll-to-roll type. The IMD film manufacturing method includes a first semi-finished product manufacturing step, a second semi-finished product manufacturing step, a second release film separating step, a first semi-finished product and a second semi-finished product lumbering step, and a third release film separating step. The first semi-finished product manufacturing step includes a
The second semi-finished product manufacturing step comprises a
The second release film separating step, the first semi-finished product and second semi-finished product lipping step, and the third release film separating step are shown in FIG. The second release film separating step is a step of separating the
The first semi-finished product manufacturing step includes a coating agent applying step, a drying step, and a second release film attaching step. Referring to FIG. 2, the coating agent applying step is a step of applying a coating agent to one side of the
The
The
Referring to FIG. 3, the drying step may be performed by drying the
4, the step of attaching the second release film is a step of attaching the
The second semi-finished product manufacturing step includes a primer layer forming step and a print layer forming step. Referring to FIG. 5, the primer layer forming step is a step of forming a laminate of the
Referring to FIG. 6, the print layer forming step includes forming a print layer 9 by gravure printing on the exposed side of the
Referring to FIG. 7, the second release film separating step is performed by a second release
The first semi-finished and second semi-finished laminate steps are performed by a
In the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.
1: IMD film 2: first semi-finished product
3, 5, 7: Release film 4: Inorganic material coating layer
6: Second semi-finished product 8: Primer layer
9:
Claims (10)
A base release film; An inorganic material coating layer which is laminated on the base release film and cured by sol or gel state or ultraviolet irradiation; A printing layer laminated on the inorganic material coating layer, the pattern being formed by printing; And a primer layer laminated on the print layer, the primer layer including a component for increasing the adhesive strength,
Wherein the material of the inorganic material coating layer is at least one resin selected from the group consisting of a silane-based resin and a siloxane-based resin, and a resin contained in the inorganic material coating layer And a photopolymerization initiator,
Wherein the base release film is separated and removed from the inorganic material coating layer after the IMD operation.
Wherein the material of the inorganic material coating layer does not contain an organic substance.
And a cover release film laminated on the primer layer and separated and removed from the primer layer before the IMD operation.
Wherein the inorganic coating layer and the printing layer are directly adhered to each other without interposing another layer for enhancing adhesion between the inorganic coating layer and the printing layer.
Wherein the material of the inorganic material coating layer is at least one resin selected from the group consisting of a silane-based resin and a siloxane-based resin, and a resin contained in the inorganic material coating layer Wherein the photopolymerization initiator is a photopolymerization initiator.
Wherein the material of the inorganic coating layer does not contain any organic material.
And a third release film separating step of separating the third release film after the first semi-finished product and the second semi-finished product lapping step.
The first semi-finished product manufacturing step may include: applying a coating agent to a side surface of the first release film to apply a liquid coating agent; A drying step of drying the coating agent applied to the first release film to evaporate a solvent to form the inorganic material coating layer; And a second release film attaching step of attaching the second release film to the exposed side surface of the inorganic material coating layer.
Wherein the step of applying the coating comprises applying the liquid phase coating using one of a slot die, a comma roller, and a micro gravure roller. ≪ / RTI >
The second semi-finished product manufacturing step may include: a primer layer forming step of forming the primer layer on the third release film; And forming a printing layer on the exposed side of the primer layer by gravure printing.
Priority Applications (1)
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KR1020150107399A KR20170015624A (en) | 2015-07-29 | 2015-07-29 | In mold decoration film and method for fabricating the same |
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KR1020150107399A KR20170015624A (en) | 2015-07-29 | 2015-07-29 | In mold decoration film and method for fabricating the same |
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KR1020190015198A Division KR20190031210A (en) | 2019-02-08 | 2019-02-08 | In mold decoration film and method for fabricating the same |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102335406B1 (en) * | 2020-07-30 | 2021-12-09 | 주식회사 서연이화 | Method for manufacturing plastic glazing |
KR102368001B1 (en) * | 2021-06-17 | 2022-02-25 | 넥스타테크놀로지 주식회사 | Apparatus for preparing semiconductor molding film |
CN115256541A (en) * | 2022-07-18 | 2022-11-01 | 恒玮电子材料(昆山)有限公司 | Die cutting process for controlling dimension of Mylar area of easy-to-draw glue |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100559677B1 (en) | 1997-08-12 | 2006-03-10 | 니폰샤신인사츠가부시키가이샤 | Transfer material, surface-protective, and process for producing molded article |
-
2015
- 2015-07-29 KR KR1020150107399A patent/KR20170015624A/en active Search and Examination
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100559677B1 (en) | 1997-08-12 | 2006-03-10 | 니폰샤신인사츠가부시키가이샤 | Transfer material, surface-protective, and process for producing molded article |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102335406B1 (en) * | 2020-07-30 | 2021-12-09 | 주식회사 서연이화 | Method for manufacturing plastic glazing |
KR102368001B1 (en) * | 2021-06-17 | 2022-02-25 | 넥스타테크놀로지 주식회사 | Apparatus for preparing semiconductor molding film |
CN115256541A (en) * | 2022-07-18 | 2022-11-01 | 恒玮电子材料(昆山)有限公司 | Die cutting process for controlling dimension of Mylar area of easy-to-draw glue |
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