KR101936885B1 - Method of manufacturing thermal transfer decoration film and thermal transfer decoration film thereof - Google Patents

Abstract

The present invention relates to a manufacturing method of a thermal transfer decoration film and a thermal transfer decoration film thereof. The manufacturing method of a thermal transfer decoration film according to an embodiment of the present invention comprises: a step of disposing a first film member by forming an acrylic resin layer between a first heteromorphic film and a second heteromorphic film arranged to be spaced with a predetermined distance in an up and down direction; a step of disposing a second film member by removing the first heteromorphic film, and laminating an ink layer for thermal transfer on one side of the acrylic resin layer from which the first heteromorphic film is removed, before a first protective film is laminated on the ink layer for thermal transfer; and a step of disposing a thermal transfer decoration film by removing the second heteromorphic film, and laminating in order a UV pattern layer, a metallizing layer, and a colored-ink layer on the other side of the acrylic resin layer from which the second heteromorphic film is removed.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of manufacturing a thermal transfer decorative film, and a thermal transfer decorative film using the thermal transfer decorative film.

The present invention relates to a method of manufacturing a thermal transfer decorative film and a thermal transfer decorative film.

In electronic devices using glass, there is increasing interest in the effects of forming various appearance aesthetics that can be realized through glass. Particularly, development of a decorative film of glass (hereinafter referred to as "decoration film") is actively conducted.

By using a decoration film, it is possible to impart various appearance aesthetics such as a metallic texture or a three-dimensional appearance through the appearance of an electronic device.

In the conventional case, the decoration film is a thermal transfer decoration film which is transferred to a glass by a thermal transfer method, and a decoration film using a scattering film which is adhered to the glass in an adhesive manner.

In the case of a conventional thermal transfer decorative film, a thermal transfer ink layer is printed on the PET film, and a separate protective film is attached to protect the printed thermal transfer ink layer. Thereafter, in the thermal transfer step, the protective film was removed and the thermal transfer ink layer was laminated to the glass.

According to this structure, in the case of the conventional thermal transfer decoration film, a desired design can be realized by using various thermosensitive inks as thermal transfer ink, but a high gloss effect with gloss or a metal color It was impossible to perform multi-deposition, and various stereoscopic patterns could not be realized.

On the other hand, in the case of the decorating film using the scattering film laminated by the conventional adhesive method, an adhesive layer was formed on the upper surface of the PET film, and UV patterns, vapor deposition and ink printing were performed on the back surface of the PET film.

However, according to this conventional method, it is advantageous to express various designs, but since the PET film and the adhesive layer are essentially provided, there is a limitation in realizing slimming of the product.

Particularly, the decoration film using the scattering film laminated by such a conventional adhesive method has a problem in that it is not suitable for realizing decorating feel of a three-dimensional glass having a deep curved surface (i.e., a 3D glass).

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-described problems, and it is an object of the present invention to provide an image display device capable of realizing various aesthetic effects (e.g., gloss, metal color, The present invention provides a method of manufacturing a thermal transfer decorating film capable of manufacturing a thermal transfer decorating film that can be prevented from being lifted or pressed when applied to a glass of a glass.

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 method of manufacturing a thermal transfer decorative film according to an embodiment of the present invention includes the steps of: (a) providing an acrylic resin layer between first and second release films spaced apart from each other with a predetermined interval to provide a first film member ; (b) removing the first release film, laminating a thermal transfer ink layer on one side of the acrylic resin layer from which the first release film has been removed, and laminating a first protective film on the thermal transfer ink layer, Providing a member; And (c) preparing a thermal transfer decorative film by sequentially laminating a UV pattern layer, a vapor deposition layer and a color ink layer on the other side of the acrylic resin layer from which the second release film has been removed after removing the second release film .

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

And (e) after the step (d), cutting the thermal transfer decoration film having the second protective film laminated thereon by a laser according to the shape of the glass to be a thermal transfer target.

In the step (a), the acrylic resin layer may be formed by a gap coating method using an acryl-based coating material.

In the step (a), the acrylic resin layer may have a thickness of 5 to 50 탆. In the present invention, since the base material such as the base PET film of the conventional PET material is not used, the acrylic resin layer can serve as the substrate. Therefore, scattering of glass fragments can be prevented by the acrylic resin layer during glass breakage. If the acrylic resin layer is less than 5 탆, the thickness of the acrylic resin layer for substituting for the base material of the PET material is too thin, which makes it difficult to smoothly perform the role of the base material, and the durability may be deteriorated. On the contrary, when the thickness of the acrylic resin layer exceeds 50 탆, the thickness is excessively excessive and the effect of improving the thickness increase is insignificant, which may be disadvantageous for slimming down.

Also, in step (a), the first and second release films may be made of PET (polyethylene terephthalate).

Preferably, the first and second release films may have a thickness of 1 to 2.5 times the thickness of the acrylic resin layer, and the adhesive force between the second release film and the other surface of the acrylic resin layer It is preferable to increase the adhesive force between the film and the one side of the acrylic resin layer. According to this, it is possible to easily remove the release film to be removed first of the first and second release films by giving a difference in adhesive force. As a specific example, the first and second release films may have a thickness of 50 to 125 탆. If the thickness of the first and second release films is less than 50 탆, protection of the acrylic resin layer may be insufficient. On the other hand, if the thickness of the first and second release films exceeds 125 탆, There is a problem that the unit price is increased by increasing the use.

In addition, in the step (b), the thermosensitive ink layer may be formed in a transparent form and may be formed by a printing or coating method so as to have a thickness equal to or smaller than the thickness of the acrylic resin layer.

Further, in the step (b), the thermoelectric conversion ink layer may have a thickness of 5 to 15 탆. If the thickness of the thermally conductive ink layer is less than 5 占 퐉, the thickness of the thermally conductive ink layer may be insufficient for thermally transferring the thermally conductive ink layer. On the other hand, if the thickness of the thermally- Can be.

In the step (b), the first protective film may be made of polyethylene (PE) and may have a thickness of 5 to 25 times the thickness of the thermoelectric ink layer.

Also, in the step (c), the UV pattern layer may be formed using an UV mold having a predetermined pattern shape, and may have a thickness of 5 to 20 탆.

Also, in the step (c), the deposition layer may include at least one deposition layer.

Further, in the step (c), the color ink layer may be printed to have at least one color, and may have a thickness of 5 to 35 탆.

According to another embodiment of the present invention, there is provided a thermal transfer decoration film produced according to the method for manufacturing a thermal transfer decoration film.

The method of manufacturing a thermal transfer decoration film according to an embodiment of the present invention has the following effects.

First, there are advantages of realizing various aesthetic effects (eg, gloss, metal color, etc.) and stereoscopic pattern effect that are difficult to realize through the conventional thermal transfer type decoration film.

Second, it is possible to manufacture a thermal transfer decorative film of a thin film by eliminating the use of a base film made of a PET material and an adhesive layer (for example, OCA), thereby making the product slimmer.

Third, there is an advantage that it is possible to fundamentally solve problems such as foreign matters and pressing which may occur in an adhesive material such as conventional PET or OCA.

Fourth, there is an advantage in that it is advantageous to apply to a glass having a three-dimensional shape by excluding the use of a base film made of a PET material and an adhesive layer (e.g., OCA). In other words, Deep Forming is possible without using the base film (ie base material) of PET material. Since there is no spring back phenomenon, it is possible to prevent defects such as lifting or pressing after the decoration film is transferred to the glass.

Fifth, there is an advantage that the acrylic resin layer serving as a base can play a role of preventing scattering of glass fragments when the product is broken.

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 showing a method of manufacturing a thermal transfer decoration film according to an embodiment of the present invention.
FIGS. 2 to 9 are process diagrams for illustrating a method of manufacturing a thermal transfer decoration film 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 decoration film in the present specification refers to a decorative film (also referred to as a " deco film ") applicable to a glass used for various electronic apparatuses including a smart phone or various mobile communication terminals, It is a film member that can be easily applied to household appliances, automobile interior, interior decorations, and various accessories.

In the present specification, a decoration film in a form applicable to a smart phone or the like will be described as an example.

Here, the electronic device refers to a portable electronic device such as a smart phone, but the present invention is not limited thereto, and any electronic device including a glass material may be applicable thereto. Referring to FIG. 8, the illustrated glass 400 represents a glass member formed on the back of the smartphone.

FIG. 1 is a flowchart briefly illustrating a method of manufacturing a thermal transfer decoration film according to an embodiment of the present invention, and FIGS. 2 to 9 illustrate a method of manufacturing a thermal transfer decoration film according to an embodiment of the present invention These are the process charts shown step by step.

As shown in the figure, the method for manufacturing a thermal transfer decoration film according to an embodiment of the present invention includes a first film member providing step (S100), a second film member providing step (S200), a thermal transfer decorating film providing step (S300) A protective film lining step S400, and a cutting step S500.

The first film member providing step (S100)

This step corresponds to the step of providing the first film member by forming the acrylic resin layer between the first and second release films which are vertically spaced apart with a predetermined interval.

2 and 3, the first film member 100 includes first and second release films 120 and 130 spaced apart from each other with a predetermined space therebetween, and an acrylic resin layer 110 is formed therebetween .

At this stage, the acrylic resin layer 110 may be formed by a gap coating method using an acryl-based coating material.

The thickness of the acrylic resin layer 110 may be varied depending on the application, and preferably the thickness can be set within a range of 5 to 50 mu m.

In the case of the present invention, since the base material such as the base PET film of the conventional PET material is not used, the acrylic resin layer 110 can serve as a substrate. Therefore, it is possible to prevent scattering of glass debris when the glass breaks through the acrylic resin layer 110.

If the acrylic resin layer 110 is less than 5 mu m, the thickness of the acrylic resin layer may be too small to replace the role of the base material of the PET material. Further, there may be a problem that the durability of the decoration film itself deteriorates.

On the contrary, when the thickness of the acrylic resin layer exceeds 50 탆, the thickness of the acrylic resin layer is excessively excessive, so that the effect of the base material which is improved compared to the thickness increase is insignificant.

The first and second release films 120 and 130 may be made of PET (polyethylene terephthalate).

Preferably, the first and second release films 120 and 130 may have a thickness of 1 to 2.5 times the thickness of the acrylic resin layer 110. As a specific example, the first and second release films 120 and 130 may have a thickness of 50 to 125 탆.

If the thickness of the first and second release films is less than 50 탆, protection of the acrylic resin layer may be insufficient. On the other hand, if the thickness of the first and second release films exceeds 125 탆, There is a problem that the unit price is increased by increasing the use.

In addition, the adhesive force between the second release film 130 and the other surface of the acrylic resin layer 110 is relatively larger than the adhesive force between the first release film 120 and one surface of the acrylic resin layer 110 good. If the difference in the adhesive strength between the two sides of the acrylic resin layer 110 is applied to the first and second release films 120 and 130 to remove the release film (e.g., the first release film) Can be facilitated.

The second film member preparation step (S200)

In this step, a second film member is prepared. The first release film is removed from the first film member provided in the previous step, the thermosensitive ink layer is laminated on one side of the acrylic resin layer from which the first release film is removed, And laminating the film to prepare a second film member.

4 and 5, in order to prepare the second film member 200, the first release film 120 (see FIG. 3) is first removed from the first film member 100 (see FIG. 3) Remove.

Then, the first release film (see 120, Fig. 3), one side of the removed acrylic resin layer (110) laminated to form a thermal transfer ink layer 210 (such as a top surface, etc.) to a desired thickness.

Then, the second film member 200 may be provided by laminating the first protective film 220 on the thermoelectric conversion ink layer 210.

In this step, the thermo-transfer ink layer 210 is directly transferred to the glass 400 when the thermal transfer decoration film 300 (see Figs. 8 and 9) is thermally transferred to the glass 400 (see Figs. 9 and 9) As shown in Fig. For example, the thermal transfer decorating film 300 (see FIGS. 8 and 9) is transferred to the glass 400 by receiving heat provided from a heating member (or a heating pad) provided in the thermal transfer facility.

Specifically, the thermo-responsive ink layer 210 may be made of a transparent functional ink material, and may be formed by printing or coating. And may preferably be formed to have a thickness equal to or less than the thickness of the acrylic resin layer 110. [

For example, the thermo-transfer ink layer 210 may have a thickness of 5 to 15 mu m.

If the thickness of the thermally-consuming ink layer 210 is less than 5 mu m, the thickness of the glass 400 (see Fig. 9) and the thermally-transferable ink layer 210 required for thermal transfer may be too small to secure a predetermined bonding force after thermal transfer I can not.

On the contrary, when the thickness of the thermally-consuming ink layer 210 is more than 15 μm, the thickness is excessively excessive, the effect of improving the thermal transfer compared to the thickness increase is insignificant and is called as slimming down the entire thermal transfer decorating film 300 There may be disadvantages.

Meanwhile, in this step, the first protective film 220 may be made of polyethylene (PE). However, the present invention is not limited to a protective film made of such a material, and another release film made of a PET material may be attached and used.

If the first protective film 220 is laminated on the acrylic resin layer 110 and the thermoelectric conversion ink layer 210, the thickness of the first protective film 220 may be greater than the thickness of the thermoelectric conversion ink layer 210 5 to 25 times the thickness of the protective layer.

Specifically, the first protective film 220 may have a thickness of 25 to 125 탆.

If the thickness of the first protective film 220 is less than 25 占 퐉, the thermosensitive ink layer 210 as well as the acrylic resin layer 110 may be insufficient. Conversely, if the thickness of the first protective film 220 is less than 25 占 퐉, The thickness is excessively excessive, the effect of improving the protective function against the thickness increase is insignificant, and there is a problem that the use of the material is increased and the unit price is increased.

The thermal transfer decorative film preparation step (S300)

In this step, the second release film is removed from the second film member provided in the previous step, and then a UV pattern layer, a vapor deposition layer, and a color ink layer are formed on the other side of the acrylic resin layer from which the second release film is removed. Are sequentially stacked. As a result, a thermal transfer decorating film can be provided.

6 and 7, in order to prepare the thermal transfer decoration film 300, the second release film 130 (see FIG. 5) is removed from the second film member 200 (see FIG. 5) do.

The UV pattern layer 310, the deposition layer 320, and the color ink layer 330 (not shown) are formed on the other side (e.g., the bottom surface) of the acrylic resin layer 110 from which the second release film 130 ) Are successively laminated.

The UV pattern layer 310 may be formed using an UV mold (not shown) having a predetermined pattern shape.

However, the pattern shape of the UV pattern layer 310 shown in FIG. 6 is only one example shape, and the present invention is not limited to this shape.

Therefore, it is possible to have various patterns in addition to the illustrated pattern shape, for example, various shapes such as spin, lenticular, hairline, lattice shape, and the like.

In addition, the UV pattern layer 310 may have a thickness of 5 to 20 탆, and the thickness can be variously adjusted according to design criteria, design, and customer's requirements.

The deposition layer 320 may be laminated on the UV pattern layer 310, but may be formed without a pattern.

Specifically, the deposition layer 320 may include one to several tens of layers of deposition to form various colors according to the product design and the request of the customer.

As the deposition layer 320 is laminated on the UV pattern layer 310, the pattern shape can be maintained well, and the reflection feeling and the depth feeling of the pattern shape can be better utilized.

A color ink layer 330 is laminated on the vapor deposition layer 320.

The color ink layer 330 may be formed at least one degree or more, and the number and types of the color ink layers 330 for achieving the target product color may be variously changed in each embodiment, But the present invention is not limited to this.

For example, the color ink layer 330 may have a thickness of 5 to 35 占 퐉. If the thickness of the color ink layer 330 is less than 5 占 퐉, it may be difficult to realize the target color. Alternatively, if the thickness of the color ink layer 330 exceeds 35 占 퐉, There is a disadvantage that it becomes disadvantageous. Therefore, it is preferable to select the thickness of the color ink layer 330 within the range of 5 to 35 mu m.

The protective film lining step (S400)

This step corresponds to a step of laminating a protective film (hereinafter referred to as a 'second protective film') on one surface of the thermal transfer decorative film prepared through previous steps, that is, the exposed surface of the color ink layer do.

7, a UV pattern layer 310, a vapor deposition layer 320, and a color ink layer 330 are sequentially laminated on the other side (for example, the bottom surface) of the acrylic resin layer 110. Finally, And the second protective film 340 is joined to the lower portion of the color ink layer 330. The second protective film 340 may be made of PE or PET and may be formed to have a thickness enough to protect the color ink layer 330 as well as the UV pattern layer 310 and the deposition layer 320 .

The cutting step (S500)

This step corresponds to the step of cutting the thermal transfer decoration film with the second protective film laminated thereon by a laser in accordance with the shape of the glass to be a thermal transfer target.

7) is attached to the glass 400 (see Fig. 8) in conformity with the shape and size of the transfer surface of the glass 400 (see Fig. 8), and the thermal transfer decoration film 300 Or the like, and is not limited to the shape shown in Fig. 8, and can be cut into various other shapes.

On the other hand, after the first film member preparing step S100, the second film member preparing step S200, the thermal transfer decorating film preparing step S300, the protective film laminating step S400, and the cutting step S500, A thermal transfer decoration film 300 (see FIG. 8) is manufactured. The thermal transfer decoration film 300 (see FIG. 8) thus produced can be thermally transferred to the glass 400 (see FIG. 8).

8 and 9, the thermal transfer decoration film 300 is disposed on one side (e.g., the back side) of the glass 400 after removing the first protective film 220 (see FIG. 7) Lt; RTI ID = 0.0 > thermal transfer < / RTI >

According to the embodiments of the present invention, Deep Forming is possible without using a base film (that is, a substrate made of a PET film) and an adhesive layer (i.e., OCA), and since there is no spring back phenomenon, It is possible to prevent a defective phenomenon such as lifting or pressing of the film after the decoration film is transferred. In addition, by using the acrylic resin layer 110 having a predetermined thickness instead of the conventional PET film as a substrate, it is possible to prevent scattering of glass fragments at the time of product breakage.

As described above, according to the configuration and operation of the present invention, the following effects can be obtained. First, there are advantages of realizing various aesthetic effects (eg, gloss, metal color, etc.) and stereoscopic pattern effect that are difficult to realize through the conventional thermal transfer type decoration film. Second, it is possible to manufacture a thermal transfer decorative film of a thin film by eliminating the use of a base film made of a PET material and an adhesive layer (for example, OCA), thereby making the product slimmer. Third, there is an advantage that it is possible to fundamentally solve problems such as foreign matters and pressing which may occur in an adhesive material such as conventional PET or OCA. Fourth, there is an advantage in that it is advantageous to apply to a glass having a three-dimensional shape by excluding the use of a base film made of a PET material and an adhesive layer (e.g., OCA). In other words, Deep Forming is possible without using the base film (ie base material) of PET material. Since there is no spring back phenomenon, it is possible to prevent defects such as lifting or pressing after the decoration film is transferred to the glass. Fifth, there is an advantage that the acrylic resin layer serving as a base can play a role of preventing scattering of glass fragments when the product is broken.

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: First film member preparation step
S200: the second film member preparation step
S300: Steps to prepare thermal transfer decorative film
S400: protective film lamination step
S500: Cutting step
100: first film member
110: Acrylic resin layer
120: first release film
130: second release film
200: second film member
210: thermoelectric ink layer
220: first protective film
300: Thermal transfer decorative film
310: UV pattern layer
320:
330: color ink layer
340: second protective film
400: Glass

Claims (13)

(a) providing a first film member by forming an acrylic resin layer between first and second release films disposed up and down with a predetermined interval therebetween;
(b) removing the first release film, laminating a thermal transfer ink layer on one side of the acrylic resin layer from which the first release film has been removed, and laminating a first protective film on the thermal transfer ink layer, Providing a member; And
(c) preparing a thermal transfer decorative film by sequentially laminating a UV pattern layer, a vapor deposition layer and a color ink layer on the other side of the acrylic resin layer from which the second release film has been removed after removing the second release film; / RTI >
In the step (a), the acrylic resin layer is formed by a gap coating method using an acryl-based coating material
Method of manufacturing thermal transfer decorative film.
The method according to claim 1,
After the step (c)
(d) laminating a second protective film on the colored ink layer;
/ RTI > A method of making a thermal transfer decorative film comprising:
3. The method of claim 2,
After the step (d)
(e) cutting the thermal transfer decoration film with the second protective film laminated thereon by a laser according to the shape of the glass to be a thermal transfer target;
/ RTI > A method of making a thermal transfer decorative film comprising:
delete The method according to claim 1,
In the step (a)
Wherein the acrylic resin layer
Having a thickness of 5 to 50 mu m
Method of manufacturing thermal transfer decorative film.
6. The method of claim 5,
In the step (a)
The first and second release films may have a thickness
It is made of PET (polyethylene terephthalate)
The thickness of the acrylic resin layer is 1 to 2.5 times the thickness of the acrylic resin layer,
And the adhesive force between the second release film and the other surface of the acrylic resin layer is relatively larger than the adhesive force between the first release film and one surface of the acrylic resin layer
Method of manufacturing thermal transfer decorative film.
The method according to claim 1,
In the step (b)
Wherein the thermally-transferable ink layer comprises:
And is formed in a printing or coating manner so as to have a thickness equal to or smaller than the thickness of the acrylic resin layer
Method of manufacturing thermal transfer decorative film.
8. The method of claim 7,
In the step (b)
Wherein the thermally-transferable ink layer comprises:
Having a thickness of 5 to 15 mu m
Method of manufacturing thermal transfer decorative film.
9. The method of claim 8,
In the step (b)
The first protective film may have a thickness
It is made of PE (polyethylene)
Has a thickness of 5 to 25 times the thickness of the thermoelectric conversion ink layer
Method of manufacturing thermal transfer decorative film.
The method according to claim 1,
In the step (c)
Wherein the UV pattern layer
Is formed using an UV mold having a set pattern shape,
Having a thickness of 5 to 20 mu m
Method of manufacturing thermal transfer decorative film.
The method according to claim 1,
In the step (c)
The vapor-
And at least one deposition layer
Method of manufacturing thermal transfer decorative film.
The method according to claim 1,
In the step (c)
The color ink layer is a color ink layer,
Formed so as to have at least one color,
Having a thickness of 5 to 35 μm
Method of manufacturing thermal transfer decorative film.
A thermal transfer decorative film produced by the method for manufacturing a thermal transfer decoration film according to any one of claims 1 to 3 and 5 to 12.

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