KR20190011006A - Decoration film manufacturing method capable of implementing multi color using coating process - Google Patents

Abstract

The present invention relates to a method for manufacturing a decorative film realizing multiple colors by using a roll-to-roll coating process. The method for manufacturing a decorative film realizing multiple colors by using a coating process according to an embodiment of the present invention comprises the steps of: unwinding a multi-color film provided in a roll form and coating a primer layer on one surface thereof and bonding a first protective film to the primer layer, and coating a first adhesive layer on the other surface and bonding a first release film to the first adhesive layer to prepare a film member; slitting or cutting the film member into a predetermined size and shape to prepare the film member in the sheet form; removing the first protective film and sequentially laminating a UV pattern layer, a vapor deposition layer, and an ink layer on the primer layer.

Description

TECHNICAL FIELD [0001] The present invention relates to a decorative film manufacturing method using a coating process,

The present invention relates to a method for manufacturing a multi-color decorative film using a roll-to-roll coating process.

In electronic devices using glass, there is increasing interest in the effects of forming various appearance aesthetics that can be realized through glass. Particularly, the development of a decorative film for a glass (also referred to as a " deco film ") is being actively carried out. For example, using a glass decorative film, a metallic texture or a three-dimensional appearance can be imparted through the appearance of an electronic device, and a method for improving productivity and quality through a relatively low cost and simple process is required .

Conventionally, a UV pattern layer is formed on a film coated with an adhesive, and a color ink layer is formed after multi-deposition to produce a glass decorative film. However, according to this conventional method, design that can be implemented is limited.

In recent years, the design of a smart phone or various mobile communication terminals has changed from a front window to a simple color (for example, black) and a back cover design to various colors and various solid patterns. In accordance with this tendency, various decorating methods for differentiating the back cover have been sought, but the conventional methods have been limited.

For example, the color of the surface varies according to the angle of the user, the angle of light, the intensity of the light, the number of light, and the shape and depth of various molded patterns formed on the back surface are variously implemented. And the like.

A prior art related to the present invention is Korean Patent Laid-Open Publication No. 10-2013-0012474 (published on March 23, 2013), which discloses a method of manufacturing a decorative film for glass attachment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a decorative film using multi-colors using a lamination process capable of realizing multi-colors and realizing a three-dimensional texture.

In addition, the present invention provides a method for manufacturing a decorative film of a multi-color realized by using a roll-to-roll coating process to improve productivity.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description and more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

A multi-color decorative film manufacturing method using a coating process according to an embodiment of the present invention comprises the steps of: (a) winding a multicolor film provided in a roll form, coating a primer layer on one side of the multicolor film, Coating a first adhesive layer on the other side of the multicolor film and bonding the first release film to the first adhesive layer to form a film member; (b) slitting or cutting the film member to a set size and shape; And (c) removing the first protective film from the slit or cut film member, and then laminating a UV pattern layer, a vapor deposition layer and an ink layer on the primer layer in order to produce a decorative film.

After step (c), (d) laminating a second protective film on the ink layer.

And (e) cutting the decorative film with a laser after the step (d).

At this time, in the step (a), the multi-color film has a basic color of green, red or blue and may be made of polyethylene terephthalate (PET).

In addition, in the step (a), the multi-color film may have a thickness of 15 to 30 탆. If the thickness of the multicolor film is less than 15 mu m, the durability may be deteriorated due to an excessively thin thickness. On the other hand, if the thickness exceeds 30 mu m, it may be difficult to realize slimming.

In the step (a), the primer layer may be formed to have a thickness of 1 to 100 탆 using a roll-to-roll coating process using a micro gravure method or a slot die method . If the thickness of the primer layer is less than 1 탆, the effect of maintaining the adhesion with UV ink or printing ink may be insufficient. On the other hand, if the thickness of the primer layer exceeds 100 탆, the thickness of the primer layer may excessively increase, .

In the step (a), the first adhesive layer may be formed by a roll-to-roll coating process using a micro gravure method or a slot die method, . ≪ / RTI > If the thickness of the first adhesive layer is less than 1 mu m, the adhesive effect may be insignificant. On the other hand, if the thickness of the first adhesive layer is more than 100 mu m, the thickness of the first adhesive layer is unnecessarily increased, .

Also, in the step (a), the first protective film may be made of polyethylene (PE).

In addition, in the step (a), the first release film has a thickness of 75 to 125 탆 and may be made of PET (polyethylene terephthalate).

In the step (b), the film member may be stored in the form of a roll after slitting, or may be stored in the form of a sheet having a predetermined size after being cut.

Also, in the step (c), the UV pattern layer may be formed using an UV mold having a pattern shape set on one side.

Also, in the step (c), the deposition layer may be formed by multi-deposition so as to have silver color or at least one color.

Further, in the step (c), the ink layer may be formed to have a black color or at least one set color.

The multi-color decorative film manufacturing method using the roll-to-roll coating process according to an embodiment of the present invention has the following effects.

First, a decorative film capable of changing various colors according to a user's viewing angle can be manufactured with high productivity using a roll-to-roll coating process.

Second, there is an advantage that various and colorful colors can be expressed according to the angle of receiving light, the reflection angle of light, the intensity of light, the number of lights, and the intensity of illumination.

Third, as multicolor is implemented like the three-dimensional forming pattern of the UV pattern layer, it is possible to realize a more luxurious and dazzling 3D stereoscopic pattern in which various patterns change according to the user's view as well as various colors, and the depth feeling of the pattern is mysteriously felt This has the advantage.

Fourth, there are advantages that various types of designs can be realized by applying the pattern shape and type, the deposition layer of various colors and the ink layer.

Fifth, there is an advantage that a multi-color implementation which can not be realized even with a multi-layer deposition of several tens of layers can be implemented easily and quickly.

Sixth, there is an advantage that it can be easily applied to a variety of household appliances, automobile interiors, interior decorations, and various accessories in addition to a smart phone or a mobile communication terminal.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 is a flowchart briefly illustrating a method of manufacturing a decorative film capable of multi-color implementation using a coating process according to an embodiment of the present invention.
FIGS. 2 to 4 are cross-sectional views for explaining detailed steps of a decorative film manufacturing method capable of multi-color implementation using a coating process according to an embodiment of the present invention.
FIG. 5 is a conceptual view briefly showing a detailed structure of a decorative film manufactured according to a method of manufacturing a decorative film capable of multi-color implementation using a coating process according to an embodiment of the present invention.
FIG. 6 is a process diagram showing a decorative film laminated to a glass according to a method for manufacturing a decorative film capable of multi-color implementation using a coating process according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings so that those skilled in the art can easily carry out the present invention. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification. Further, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to denote like elements throughout the drawings, even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, the terms first, second, A, B, (a), (b), and the like can be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; intervening "or that each component may be" connected, "" coupled, "or " connected" through other components.

The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. As shown in FIG.

The decorative film in the present specification is not limited to electronic devices, but may be decorative films (i.e., deco films) applicable to glasses used in various electronic apparatuses including smart phones or various mobile communication terminals, It is a film member that can be easily applied to interior, interior, various accessories.

In the present specification, a decorative film is described as a form applicable to a smart phone or the like.

Here, the electronic device refers to a portable electronic device such as a smart phone, but is not limited thereto, and any electronic device including a glass material can be applied without limitation. Referring to FIG. 6, the illustrated glass 10 is a glass member formed on the back of the smartphone.

FIG. 1 is a flowchart briefly illustrating a method for manufacturing a decorative film capable of multi-color implementation using a coating process according to an embodiment of the present invention. FIGS. 2 to 4 are views showing a coating process according to an embodiment of the present invention Sectional views for explaining detailed steps of a method for manufacturing a decorative film capable of realizing a multi-color using the present invention.

 Referring to FIGS. 1 to 4, a decorative film production method capable of multi-color implementation using a roll-to-roll coating process according to an embodiment of the present invention includes a film member preparation step S100, a film member slitting or cutting step S200, a decorative film manufacturing step S300, a second protective film lining step S400, and a cutting step S500.

The film member preparation step (S100)

In this film forming step, a multi-color film provided in the form of a roll is wound, a primer layer is coated on one surface of the multi-color film, a first protective film is laminated on the primer layer, A first adhesive layer is coated on the first adhesive layer and a first release film is laminated on the first adhesive layer to provide a film member.

Referring to FIG. 2, a film member 100 capable of multi-color implementation is provided through a roll-to-roll coating process.

The film member 100 is prepared by the following process. First, when the multicolor film 130 is prepared, the primer layer 140 is coated on one side of the multicolor film 130. The first protective film 150 is laminated on the primer layer 140. On the other hand, the first adhesive layer 120 is coated through the other surface of the multi-color film 130. The first release film 110 is laminated on the coated first adhesive layer 120. According to the above-described method, the film member 100 may be provided with the sectional structure shown in FIG.

The multi-color film 130 may have any one of green, red, and blue as a basic color, and may be made of PET (polyethylene terephthalate).

Such a multi-color film 130 may be formed by a plurality of layers such as a multi-layered effect (for example, 30 layers) or the like, such as a user's viewing angle, angle of light received from the film, luminous intensity of light, Therefore, it refers to a film-shaped member changing in various colors. As a specific example, it is possible to use a reflective color film, that is, a Luvviole film whose color changes depending on the viewing angle.

Preferably, the multicolor film 130 may have a thickness of 15 to 30 占 퐉. If the thickness of the multicolor film is less than 15 mu m, the durability may be deteriorated due to an excessively thin thickness. On the other hand, if the thickness exceeds 30 mu m, it may be difficult to realize slimming.

The primer layer 140 is a functional layer coated on one side of the multicolor film 130. The primer layer 140 is coated with a printable primer material for UV molding or maintaining adhesion with printing ink.

Preferably, the primer layer 140 may be coated by a roll-to-roll coating process using a micro gravure method or a slot die method.

The thickness of the primer layer 140 is preferably within a range of 1 to 100 mu m. If the thickness of the primer layer 140 is less than 1 mu m, the effect of maintaining the adhesion with the UV ink or printing ink may be insufficient. On the other hand, if the thickness of the primer layer 140 exceeds 100 mu m, Can be difficult.

After the primer layer 140 is coated on one side of the multicolor film 130, a separate first protective film 150 is bonded to the primer layer 140. The first protective film 150 is a functional film member for protecting the primer layer 140, and preferably a film member made of PE (polyethylene).

The first adhesive layer 120 is coated on the other surface of the multicolor film 130 using an OCA (Optical Clear Adhesive) adhesive.

Preferably, the first adhesive layer 120 may be coated by a roll-to-roll coating process using a micro gravure method or a slot die method.

The thickness of the first adhesive layer 120 is preferably within a range of 1 to 100 mu m. If the thickness of the first adhesive layer 120 is less than 1 m, the adhesive effect may be insignificant. On the other hand, if the thickness of the first adhesive layer 120 exceeds 100 m, the thickness of the first adhesive layer 120 The slimness can be difficult to implement.

After the first adhesive layer 120 is coated on the other side of the multicolor film 130, a separate first release film 110 is prepared, and the first release film 110 is bonded to the first adhesive layer 120, do.

The first release film 110 is a film to be peeled off before the decorative film 200 is joined to the glass 10 (see FIG. 4), and the first release film 110 is peeled off before the decorative film 200 is joined to the glass 10 It blocks external exposure.

The first release film 110 may be made of various materials, but preferably it is made of PET (polyethylene terephthalate).

In addition, the first release film 110 may have a thickness of 75 to 125 탆.

As described above, the primer layer 140 is coated on one side of the multicolor film 130 using the roll-to-roll coating process, and the protective film 150 is laminated on the primer layer 140. The first adhesive layer 120 is coated on the other side of the multicolor film 130 and the first release film 110 is bonded to the first adhesive layer 120. The first film member 100 may be provided in this manner.

In the film member slitting or cutting step S200,

This step is a film member slitting or cutting step in which the film member is slit or cut in set size and shape.

The film member 100 prepared through the previous step can be stored in the form of a roll after slitting. Alternatively, the film member 100 prepared through the previous step may be stored in a sheet form of a set size after the cutting.

Here, after the film member 100 is slitted, it may be rolled to form a decorative film. Alternatively, the film member 100 may be cut to form a sheet, But it is not limited to any specific method and can be set appropriately according to the operator's choice.

The decorative film manufacturing step (S300)

In this step, the decorative film is manufactured by removing the first protective film from the film member slitted or cut in the previous step, and then laminating the UV pattern layer, the vapor deposition layer and the ink layer on the primer layer in order.

Referring to FIG. 3, a slit or cut film member is prepared. After the first protective film 150 is removed, a UV pattern layer 160, a deposition layer 170, an ink layer 180 Can be laminated in this order to provide the decorative film (200).

The UV pattern layer 160 may be formed using an UV mold (not shown) having a shape corresponding to the pattern shape set on one side. The patterning of the UV pattern layer 160 shown in FIG. 3 is only one exemplary shape, and the present invention is not limited to such a shape and may have various other patterns.

For example, the pattern can have various types and shapes, and can have various types and shapes such as spin, lenticular, hairline, grid shape, and the like.

The deposition layer 170 is formed by laminating on the UV pattern layer 160. Here, the deposition layer 170 may be formed by multi-deposition so as to have a silver color or a set color. As the deposition layer 170 is laminated on the UV pattern layer 1600, a predetermined pattern shape can be maintained well, and the reflection and depth of the pattern can be saved.

The ink layer 180 is formed by laminating on the vapor deposition layer 170. This ink layer 180 may be formed to be at least 1 degree or more, and the number and color type of the ink layer 180 for implementing color may be variously changed according to the embodiment, It does not.

The second protective film lining step (S400)

This step may be a second protective film laminating step, in which a second protective film is further laminated to protect the ink layer 180 formed by stacking the vapor deposition layer 170 in the previous step.

Although the second protective film is not separately shown, a film member made of the same material as the first protective film 150 (see FIG. 3) described in the film member preparation step S100, for example, PE (polyethylene) have.

The cutting step (S500)

This step corresponds to a cutting step of cutting the decorative film 200 having the second protective film laminated in the previous step by using the laser equipment according to the required size and shape.

That is, in the cutting step S500, the decorative film 200 can be cut using equipment such as a laser according to the shape and size of the decorative object, that is, the glass 10 (see FIG. 6).

4, the first adhesive layer 120 may be used to preliminarily remove the first release film 110 so as to be joined to the glass 10.

FIG. 5 is a conceptual view briefly showing a detailed structure of a decorative film produced according to a method of manufacturing a decorative film capable of multi-color implementation using a roll-to-roll coating process according to an embodiment of the present invention.

5, the decorative film 200 according to an exemplary embodiment of the present invention includes a first adhesive layer 120, a multicolor film 130, a primer layer 140, a UV pattern layer 160, A vapor deposition layer 170, and an ink layer 180. [

FIG. 6 is a process diagram showing a decorative film laminated to a glass according to a method of manufacturing a decorative film capable of multi-color implementation using a roll-to-roll coating process according to an embodiment of the present invention. The decorative film 200, which is multi-colored using the roll-to-roll coating process manufactured according to an embodiment of the present invention, is pre-cut to correspond to the shape and size of the glass 10, Facing each other.

As described above, according to the configuration and operation of the present invention, the following effects can be obtained. First, the decorative film which can change various colors according to the viewing angle can be manufactured with high productivity through the roll-to-roll coating process. And it has the merit that various and colorful colors can be expressed according to the angle of receiving light, the reflection angle of light, the intensity of light, the number of lights, and the intensity of illumination. As multi-color is realized as the pattern of UV pattern layer, it is possible to realize a more luxurious and dazzling 3D stereoscopic pattern in which various patterns change according to the user's view as well as various colors, and the depth feeling of the pattern is mysteriously felt There are advantages. In addition, it is possible to realize various types of designs by applying the shape and the type of pattern, the deposition layer of various colors and the ink layer. And multi-color implementation which is difficult to realize even with multi-layer deposition of several tens of layers can be implemented easily and quickly. In addition to smart phones or mobile communication terminals, it can be easily applied to various home appliances, automobile interiors, interior decorations, and various accessories.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed exemplary embodiments. It is obvious that a transformation can be made. Although the embodiments of the present invention have been described in detail above, the effects of the present invention are not explicitly described and described, but it is needless to say that the effects that can be predicted by the configurations should also be recognized.

S100: Film forming step
S200: Film member slitting or cutting step
S300: decorative film manufacturing step
S400: Second protective film lapping step
S500: Cutting step
100: Film member
110: first release film
120: first adhesive layer
130: Multicolor film
140: primer layer
150: first protective film
160: UV pattern layer
170:
180: ink layer
200: Decorative film

Claims (12)

(a) a multi-color film provided in a roll form is wound, a primer layer is coated on one side of the multi-color film, a first protective film is laminated on the primer layer, and a first adhesive layer Coating a first release film on the first adhesive layer to form a film member;
(b) slitting or cutting the film member to a set size and shape; And
(c) removing the first protective film from the slit or cut film member, and then laminating a UV pattern layer, a vapor deposition layer and an ink layer on the primer layer in order to produce a decorative film;
≪ / RTI > A method of manufacturing a decorative film.
The method according to claim 1,
After the step (c)
(d) laminating a second protective film on the ink layer;
≪ / RTI > wherein the method further comprises the steps of:
3. The method of claim 2,
After the step (d)
(e) cutting the decorative film with a laser;
≪ / RTI > wherein the method further comprises the steps of:
The method according to claim 1,
In the step (a)
The multi-
Green, red, and blue as basic colors,
A material made of PET (polyethylene terephthalate)
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (a)
The multi-
Having a thickness of 15 to 30 mu m
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (a)
The primer layer,
A coating is formed to have a thickness of 1 to 100 mu m using a roll-to-roll coating process of a micro gravure method or a slot die method
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (a)
Wherein the first adhesive layer comprises:
A roll-to-roll coating process using a micro gravure method or a slot die method is used to coat the substrate with an OCA adhesive material so as to have a thickness of 1 to 100 mu m
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (a)
The first protective film may have a thickness
Made of polyethylene (PE)
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (a)
Wherein the first release film comprises
Has a thickness of 75 to 125 탆,
A material made of PET (polyethylene terephthalate)
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (c)
Wherein the UV pattern layer
And is formed using an UV mold having a pattern shape set on one side
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (c)
The vapor-
Silver color or at least one color
Method for manufacturing decorative film using multi -
The method according to claim 1,
In the step (c)
Wherein the ink layer comprises:
Black color or at least one color set
Method for manufacturing decorative film using multi -

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