KR20230021277A - Decoration film comprising layer having function of color and reflection and its manufacturing method - Google Patents

Abstract

The present invention relates to a decoration film, and more particularly, to a decoration film capable of implementing various colors and providing various changes in light characteristics, while exhibiting effects of reducing manufacturing costs and improving production efficiency. The decoration film comprises a glass layer, an optical base film (PET) layer, a color reflection layer, a UV pattern layer, a deposition layer, and a silk printing layer.

Description

Decoration film comprising a color reflection layer and its manufacturing method

The present invention relates to a decoration film, and more particularly, to a decoration film capable of implementing various colors and various changes in light characteristics, while exhibiting effects of reducing manufacturing cost and improving production efficiency.

BACKGROUND OF THE INVENTION [0002] Recently, mobile phones with various designs are being released according to the development of mobile phone and smart phone (hereinafter referred to as "mobile phone") technologies. Such a mobile phone is composed of a case constituting an exterior and various circuit parts mounted inside the case to perform the original functions of the mobile phone. Among them, since a mobile phone case is usually made of synthetic resin and has low hardness, scratches such as scratches easily occur due to external impact.

Accordingly, in recent years, as well as protection of mobile phone products, technology development for mobile phone films for improving aesthetics has been actively conducted. Mobile phone film is a situation where various colors, gloss, and patterns (ie, patterns) of the film are required to meet the tastes of modern people with various personalities.

As an example, Korean Patent Publication No. 10-2013-0052430 discloses a technology related to an epoxy protective film for a mobile phone and a manufacturing method thereof. However, in the case of the epoxy protective film for mobile phones as described above, there is a disadvantage of low aesthetics. There is a problem that the process is complicated and takes a long time.

Recently, in the design of smart phones or various mobile communication terminals, the front window is simply made in a single color (eg black, etc.), and the back cover design is changed to various colors and various three-dimensional patterns. . In accordance with this trend, various decoration implementation methods are being sought to differentiate the back cover.

For example, the surface color changes in various ways according to the user's viewing angle, light receiving angle, light intensity, and number of lights, expressing the unique texture of a metal material, or depth by a molded three-dimensional pattern shape. There are methods such as implementing senses.

Accordingly, in recent years, interest in effects such as the formation of various external aesthetics that can be realized through glass is increasing. In particular, technology development related to a decorative film of glass (or referred to as 'decoration film' or 'decor film') is being actively conducted. For example, if a glass decorative film is used, a metal texture or three-dimensional effect can be imparted through the exterior of an electronic device, but conventionally used materials have a disadvantage in that their production efficiency is poor due to their relatively high cost.

On the other hand, electronic devices such as the latest smart phones are attached with a film having a metallic appearance effect without using a metal material, so that the manufacturing cost can be lowered while having a beautiful and high-quality image like metal. In the past, since metal materials were used directly, there were problems in processing such as cutting, cutting, and bending, and the price was expensive. By implementing the effect, it is widely used as a decoration material such as interior. However, since this conventional method needs to go through a metal deposition process, it not only causes costs to rise, but also has limitations in complicating the process.

Therefore, it is necessary to develop a technology for manufacturing a decoration film that can improve productivity and quality through a relatively low cost and simple process while exhibiting excellent aesthetics such as various colors and textures.

Republic of Korea Patent Publication No. 10-2013-0052430

The present invention is to solve the above problems, to provide a decoration film that can realize various colors and various changes in light characteristics, while exhibiting the effect of reducing manufacturing cost and improving production efficiency.

The above and other objects and advantages of the present invention will become apparent from the following description of preferred embodiments.

The above object, the glass layer; a substrate film (PET) layer for optics located below the glass layer; A color reflection layer located under the optical substrate film (PET) layer; a UV pattern layer positioned under the color reflection layer; a deposition layer located under the UV pattern layer; It can be achieved by a decoration film comprising a; and a silk printing layer positioned below the deposition layer.

An adhesive layer positioned between the glass layer and the optical substrate film (PET) layer may be further included.

The color reflection layer may include a second PET layer positioned on the UV pattern layer; a second color layer positioned on the second PET layer; a second adhesive layer positioned on the second color layer; a reflection enhancement layer positioned on the second adhesive layer; a first adhesive layer positioned on the reflection enhancement layer; and the first adhesive layer; a first color layer positioned on top; It may have a structure including.

The second PET layer may be removed by thermal drying, and a second color layer exposed after removal may be laminated on the UV pattern layer.

The above object is to form a substrate film (PET) layer for optics; Forming a color reflection layer positioned under the optical substrate film (PET) layer; Forming a UV pattern layer positioned under the color reflection layer; Forming a deposition layer located under the UV pattern layer; It can be achieved by a decoration film manufacturing method comprising; and forming a silk printing layer located under the deposition layer.

Forming a first color layer by coating a color coating liquid on one surface of the first PET layer; forming a second color layer by coating the color coating liquid on one surface of the second PET layer; forming a reflection enhancement layer by coating a reflection coating solution on one surface of the third PET layer; forming a first adhesive layer on the other surface of the first color layer in a direction opposite to that of the first PET layer; forming a second adhesive layer on the other surface of the second color layer in a direction opposite to that of the second PET layer; laminating the reflection enhancement layer on the second adhesive layer and removing the third PET layer; laminating the first adhesive layer on the reflection enhancement layer exposed by removing the third PET layer, and removing the first PET layer; and forming an anti-scattering film on the first color layer exposed by removing the first PET layer.

According to the present invention, by including a color reflective layer having a structure including three coating layers of upper and lower color layers and a reflection enhancement layer positioned between the color layers, various color implementations and various changes in optical characteristics can be achieved. While possible, it is intended to provide a decoration film that exhibits the effect of reducing manufacturing cost and improving production efficiency.

However, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a schematic diagram showing a decoration film according to an embodiment of the present invention.
2 illustrates a structure of a color reflection layer according to an embodiment of the present invention.
3 is a photograph showing an example in which the decoration film according to an embodiment of the present invention is applied to a mobile phone back cover.

Hereinafter, the present invention will be described in detail with reference to embodiments and drawings of the present invention. These examples are only presented as examples to explain the present invention in more detail, and it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples. .

In addition, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of skill in the art to which this invention belongs, and in case of conflict, this specification including definitions of will take precedence.

In order to clearly explain the proposed invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification. And, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated. Also, a “unit” described in the specification means one unit or block that performs a specific function.

In each step, the identification code (first, second, etc.) is used for convenience of description, and the identification code does not describe the order of each step, and each step does not clearly describe a specific order in context. It may be performed differently from the order specified above. That is, each step may be performed in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

In the present invention, in this specification, "decoration film" is a decorative film (ie, decorative film) applicable to glasses used in various electronic devices, including smartphones or various mobile communication terminals, and is not limited to electronic devices. , For example, it refers to a film member that can be easily applied to home appliances, automobile interiors, indoor interiors, and various accessories. In this specification, a decoration film will be described as a form applicable to smartphones and the like. However, it is not limited thereto, and any electronic device containing a glass material may be applicable without limitation.

In the present invention, the "color reflective layer" in the present specification may mean a layer or film form that can be applied to a decoration film to realize various colors such as multi-color and/or reflective color.

One aspect of the present application, the glass layer; optical substrate film (PET) layer; a color reflection layer positioned under the optical substrate film (PET) layer; a UV pattern layer positioned under the color reflection layer; a deposition layer located under the UV pattern layer; It provides a decoration film comprising a; and a silk printing layer located under the deposition layer.

Another aspect of the present disclosure includes forming a substrate film (PET) layer for optical use; Forming a color reflection layer positioned under the optical substrate film (PET) layer; Forming a UV pattern layer positioned under the color reflection layer; Forming a deposition layer located under the UV pattern layer; It provides a decoration film manufacturing method comprising the; and forming a silk printing layer located under the deposition layer.

Hereinafter, embodiments and embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. However, it may not be limited to these implementations and examples and figures herein.

1 is a schematic diagram showing a decoration film according to an embodiment of the present invention. Referring to FIG. 1, the decoration film 50 includes a glass layer 100, an optical land film (PET) layer 300 positioned below the glass layer 100, and the optical land film (PET). ) The color reflection layer 400 located under the layer 300; a UV pattern layer 500 positioned under the color reflection layer 400; Deposition layer 600 located under the UV pattern layer 500; and a silk printing layer 700 positioned under the deposition layer 600.

The optical substrate film (PET) layer 300 is a layer attached to the lower portion of the glass layer 100, and between the glass layer 100 and the optical substrate film (PET) layer, OCA : It is preferable that the adhesive layer 200 formed of an optical clear adhesive) or an adhesive resin is further configured.

2 is a schematic diagram showing the structure of a color reflection layer 400 according to an embodiment of the present invention.

Referring to FIG. 2 , the color reflection layer 400 includes, from the bottom, the second PET layer 2 , the second color layer 12 , the second adhesive layer 30 , the reflection enhancement layer 20 , and the second PET layer 2 . 1 may include an adhesive layer 30 and a first color layer 11. That is, the color reflection layer 400 includes an upper color layer 11 and a lower color layer 12, and includes a reflection enhancement layer 20 positioned between the color layers 11 and 12. The branch coating layer may have a laminated structure.

As a method of manufacturing the color reflection layer 400, it may be manufactured by a method of coating a color layer and a reflection enhancement layer. More specifically, the method of manufacturing the color reflective layer 400 may include a color layer coating step, a reflection enhancement layer coating step, an adhesive layer coating step, and lamination and PET removal steps.

Hereinafter, a method of manufacturing the color reflection layer 400 will be described in more detail.

Color layer coating step

First, a first color layer may be formed by coating a color coating solution on one surface of the first PET layer. The first color layer may be an upper color layer located at the top of the overall structure of the color reflection layer, that is, in a direction toward the PET layer 300 for optical use.

The first PET (polyethylene terephthalate, polyethylene terephthalate) layer is a base film for forming the color reflection layer 400, and has excellent uniformity and transparency, and exhibits advantages of being thin. For example, the thickness of the PET layer may be preferably 50 to 125 μm.

The color coating liquid may include an ultraviolet curable resin composition and a color pigment. Specifically, the color coating liquid may contain the color pigment in the UV curable resin composition, and thus, a separate dispersant may be used to appropriately suspend the color pigment in the resin composition.

As the color pigment, for example, a conventional pigment such as a self-dispersed pigment, a polymer-coated pigment, or a pulverized pigment may be used. The color pigment may be a particulate pigment, specifically, an inorganic pigment or an organic pigment. The inorganic pigment may have a particle size of, for example, 10 nm to less than 1000 nm.

The colored pigments are, for example, black, blue, brown, cyan, green, white, purple, magenta, red, orange and yellow as well as a spot color obtained from a mixture thereof, and the like can express The type of color of the pigment is not limited thereto.

Non-limiting examples of the organic pigments include perylene, phthalocyanine pigments, cyanine pigments (Cy3, Cy5, and Cy7), naphthalocyanine pigments, nitroso pigments, mono-azo pigments, di-azo pigments, and di-azo condensation. pigment, basic dye pigment, alkali blue pigment, blue lake pigment, proxine pigment, quinacridone pigment, iso-indolinone pigment, di-oxazine pigment, carbazole di-oxazine violet pigment, alizarin lake pigment, phthaloxy Any one selected from the group consisting of amine pigments, carmine lake pigments, tetrachloroisoindolinone pigments, perinone pigments, thio-indigo pigments, anthraquinone pigments, quinophthalone pigments, and derivatives thereof, or a mixture of at least two of them can

The inorganic pigments are, for example, metal oxides (e.g. titanium dioxide, electrically conductive titanium dioxide, iron oxides (e.g. red iron oxide, yellow iron oxide, black iron oxide and transparent iron oxide), aluminum oxide, silicon oxide) , carbon black pigment (for example, furnace black), metal sulfides, metal chlorides, and may be any one selected from the group consisting of combinations thereof.

The color pigment may be preferably included in the range of 0.1% to 10% by weight of the total weight of the UV curable resin composition.

The UV-curable resin composition may further include an acrylate oligomer and a monomer, a photoinitiator, and an additive. For example, the acrylic oligomer may be one selected from urethane-based, epoxy-based, ester-based, ether-based, or silicone-based, and preferably polyurethane acrylate prepared by reacting diisocyanate, polyol and methacrylate is used it may be

The photoinitiator may use a known material, and for example, a photoinitiator such as Irgacure 184 may be used, and a light stabilizer such as Tinuvin 400 may be used in combination.

As a method of coating the color coating solution on the first PET layer, wet coating, specifically, a slot die coating method may be used. When using the wet coating method, since a coating layer can be formed with a thickness of nano (nm) to micro (㎛) units, it exerts an advantage that the manufacturing process is easy.

The coating may be performed at room temperature, for example, in a temperature range of 18 to 26° C., in a nitrogen gas (N ₂ ) atmosphere. After the coating, drying and UV curing may be performed. The drying may use IR drying, for example, at 50 to 90 ° C, specifically, at a temperature of 80 to 90 ° C, for example, 1 minute to 5 minutes, specifically, 1 minute 30 seconds to It can be dried for 3 minutes, in one example, for 2 minutes. The UV curing may be performed by irradiating UV energy of 450 to 550mj/cm ² , for example, 500mj/cm ² using a metal halide UV lamp. The thickness of the first color layer may be 1 to 5 μm, specifically, 2 to 4 μm, for example, 3 μm.

Next, a color coating liquid may be coated on one surface of the second PET layer to form a second color layer. The second PET layer may have the same components as the first PET layer. The second color layer may be a lower color layer located at the bottom of the entire structure of the color reflection layer 400, that is, in the direction of the UV pattern layer 500. A method of forming the second color layer may be the same as the method of forming the first color layer described above.

Reflection enhancing layer coating step

Next, a reflection enhancement layer may be formed by coating a reflection coating liquid on one surface of the third PET layer. Components of the third PET layer may be the same as those of the first PET layer and the second PET layer.

The reflection enhancement layer includes a reflective material, and diffusely reflects or scatters incident light to exhibit a glossy effect. As a method of forming the reflection enhancement layer, the reflection enhancement layer may be coated on the third PET layer with the reflection coating liquid.

The reflective coating liquid may be in the form of a liquid crystal of a transparent material. The reflective coating solution may include methyl ethyl ketone, methyl isobutyl ketone, or a combination thereof. The reflective coating solution may further include a separate dispersing agent in order to properly suspend it.

The coating method may be wet coating, specifically, slot die coating. When using the wet coating method, since a coating layer can be formed with a thickness of nano (nm) to micro (㎛) units, it exerts an advantage that the manufacturing process is easy. The solvent used in the wet coating is not particularly limited as long as it is evaporated by drying after coating, and water or a volatile organic solvent may be used, for example.

The coating of the reflection enhancement layer may be the same as the coating method of the color layer described above. The reflection enhancement layer may have a thickness of 1 μm to 5 μm, specifically, 1 μm to 3 μm, for example, 2 μm.

Adhesion layer coating step

The adhesive layer may fix the color layers and the reflection enhancement layer. More specifically, the adhesive layer is located between the first color layer, the second color layer, and the reflection enhancement layer, and the second color layer, which is a color layer located at the bottom, and the first color layer located at the top. The reflection enhancement layer may be fixed and disposed therebetween.

To this end, a first adhesive layer may be formed on the other surface of the first color layer in a direction opposite to that of the first PET layer. The first adhesive layer may be formed of, for example, a polyurethane-based, polyester-based, epoxy-based, or acrylic-based adhesive, but is not limited thereto. As a method of forming the first adhesive layer, after preparing an adhesive coating liquid by mixing the adhesive in a liquid phase, a coating layer is formed by a coating method such as comma coating, slot die coating, and microgravure coating using the coating liquid may be forming For example, the coating may use a slot die coating method.

The coating may be performed at room temperature, for example, in a temperature range of 18 to 26° C., in a nitrogen gas (N ₂ ) atmosphere. After the coating, drying may be performed at 85 to 95° C., specifically, at a temperature of 90° C., for 1 minute to 5 minutes, for example, for 1 minute 30 seconds to 3 minutes, for example, for 2 minutes. The drying may use IR drying.

The thickness of the first adhesive layer may be 0.5 to 5 μm, specifically, 0.5 to 3 μm, for example, 1 μm. A second adhesive layer may be formed on the other surface of the second color layer in a direction opposite to that of the second PET layer by using the same method.

Laminating and PET removal steps

The lamination may mean sequentially bonding the three coating layers of the first color layer, the reflection enhancement layer, and the second color layer. To this end, as described above, by forming adhesive layers on one surface of each coating layer, the respective coating layers can be more effectively laminated with the adhesive layer interposed therebetween.

More specifically, on the second adhesive layer, specifically, on the second adhesive layer formed on the second color layer, a surface opposite to the reflection enhancement layer, specifically, the third PET layer, may be laminated. there is. Accordingly, the second color layer, the second adhesive layer, and the third PET layer may be sequentially formed. The laminating method may use a roll-to-roll laminating method. The lamination may be performed at a rate of 0.8 m/min to 1.2 m/min, for example, 1 m/min at 70 to 90° C., for example, 80° C.

The third PET layer may be removed by heat drying. At this time, the thermal drying is performed only on the upper third PET layer so that the lower second PET layer is not removed. The thermal drying may be performed at 85 to 95 ° C, specifically, 90 ° C, for 50 to 70 minutes, for example, 60 minutes. Under the heat drying condition, only the third PET layer can be effectively removed while the coating layers of the second color layer, the second adhesive layer, and the reflection enhancement layer are maintained in a laminated state without damage.

Next, the first adhesive layer may be laminated on the reflection enhancement layer exposed after removing the third PET layer. Thus, from the bottom, the second PET layer, the second color layer, the second adhesive layer, the reflection enhancement layer, the first adhesive layer, the first color layer, and the first PET layer may be arranged in order. The method of lamination may be performed in the same manner as described above.

Next, the first PET layer, specifically, the first PET layer positioned on the first color layer may be removed by heat drying. At this time, the heat drying is performed only on the upper first PET layer so that the lower second PET layer is not removed. The thermal drying may be performed at 85 to 95 ° C, specifically, 90 ° C, for 50 to 70 minutes, for example, 60 minutes. In the heat drying condition, only the first PET layer can be effectively removed while maintaining the coating layers of the second color layer, the second adhesive layer, the reflection enhancement layer, the first adhesive layer, and the first color layer in a laminated state without damage. make it possible

Next, an anti-shattering film may be formed on the first color layer exposed after the step of removing the first PET layer. Specifically, the structure of the color reflection layer 400 in which the first color layer, the first adhesive layer, the reflection enhancement layer, the second adhesive layer, the first color layer, and the second PET layer are sequentially formed on the anti-shattering film. may be transcribed.

Accordingly, the color reflection layer 400 can be more easily formed under the PET layer 300 for optical use. At this time, a separate adhesive layer may be formed between the first color layer and the anti-scattering film. The type of the anti-shattering film is not particularly limited, and those of known components can be used.

In other words, the color reflection layer 400 is located on the UV pattern layer 500,

a second PET layer; a second color layer positioned on the second PET layer; a second adhesive layer positioned on the second color layer; a reflection enhancement layer positioned on the second adhesive layer; a first adhesive layer positioned on the reflection enhancement layer; and the first adhesive layer; a first color layer positioned on top; It may have a structure including.

The structure of the color reflection layer 400 is that a thin coating layer formed using wet coating is laminated, and production efficiency can be increased through a simpler process. In addition, it is manufactured using a color coating liquid and a reflective coating liquid, so that desired colors can be variously and easily implemented, and light characteristics such as reflectance and transmittance are easily changed, thereby exhibiting the effect of widely adjusting the reflective characteristics. , When applied to a decoration film, aesthetics can be further improved.

The color reflection layer 400 may have a thickness of 10 to 20 μm, for example, 15 μm.

A UV pattern layer 500 may be formed below the lower color layer of the color reflection layer 400 . At this time, the second PET layer formed on the lower surface of the lower color layer is removed by heat drying in the same manner as described above, and then the UV pattern layer 500 can be formed. When the UV pattern layer is formed under the lower color layer, a separate primer layer (not shown) may be added to improve adhesion.

The UV pattern layer 500 may be formed using a UV mold (not shown) having a pattern shape set on one surface. The pattern may include, for example, intaglio grooves, embossed grooves, or a combination thereof, and various types and shapes such as spin, lenticular, hairline, and lattice shapes. can have However, the type and shape of the pattern is not limited thereto.

As an example, the UV pattern layer 500 may be formed by a method of forming a pattern using a gravure roll having an intaglio groove having a set design or shape. However, a method of manufacturing the UV pattern layer 500 is not limited thereto and may follow a known technique.

The UV pattern layer 500 may have a thickness of 9.5 μm to 12 μm, for example, 10 μm.

The deposition layer 600 is a layer formed on the lower surface of the UV pattern layer 500 through a deposition process, and is preferably made of a material having a predetermined transmittance or reflectance.

Specifically, the deposition layer 600 may be an inorganic deposition layer including a non-conductive vacuum metalizing (NCVM) inorganic material. The non-conductive vacuum deposited inorganic material may be at least one selected from the group consisting of Nb, Si, and Ti. The deposition layer 600 may have a thickness of, for example, 0.02 μm to 0.05 μm.

The silk-printed layer 700 is a layer formed on the lower side of the deposition layer 600 by a silk screen printing method, and a logo, product name, or various patterns may be printed on the silk-printed layer 700 .

The decoration film according to an embodiment of the present invention includes a color reflection layer having a structure including three coating layers of upper and lower color layers and a reflection enhancing layer positioned between the color layers, thereby implementing various colors. And, while enabling various changes in optical properties to improve aesthetics, it is possible to manufacture a thin coating layer with a simpler process using a wet coating method, thereby lowering the manufacturing cost in the field of manufacturing decoration films It can contribute to increasing production efficiency.

3 is a photograph showing an example in which the decoration film according to an embodiment of the present invention is applied to a mobile phone back cover.

Referring to FIG. 3, when the decoration film including the color reflective layer of the present invention is applied to the back cover of a mobile phone, it shows that better aesthetics can be secured by improving the reflectance along with implementing various colors.

As described above, the decoration film and the embodiment of the manufacturing method according to the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, but within the scope of the technical idea to which the present invention belongs. It will be obvious that it can be transformed into various forms.

2: second PET layer 10: color layer
11: first color layer (upper color layer) 12: second color layer (lower color layer)
20: reflection enhancement layer 30: adhesive layer (first adhesive layer, second adhesive layer)
40: anti-shattering film 100: glass layer
200: adhesive layer 300: optical substrate film (PET) layer
400: color reflection layer 500: UV pattern layer
600: deposition layer 700: silk printing layer

Claims (6)

glass layer;
a substrate film (PET) layer for optics located below the glass layer;
A color reflection layer located under the optical substrate film (PET) layer;
a UV pattern layer positioned under the color reflection layer;
a deposition layer located under the UV pattern layer; and
A decoration film comprising a; silk printing layer located under the deposition layer. According to claim 1,
The decoration film further comprising an adhesive layer positioned between the glass layer and the optical substrate film (PET) layer. According to claim 1,
The color reflection layer,
Located on the UV pattern layer,
a second PET layer;
a second color layer positioned on the second PET layer;
a second adhesive layer positioned on the second color layer;
a reflection enhancement layer positioned on the second adhesive layer;
a first adhesive layer positioned on the reflection enhancement layer; and
the first adhesive layer; a first color layer positioned on top; To have a structure comprising a, decoration film. According to claim 3,
The second PET layer is removed by thermal drying,
After removal, the exposed second color layer is laminated on the UV pattern layer, the decoration film. Forming an optical substrate film (PET) layer;
Forming a color reflection layer positioned under the optical substrate film (PET) layer;
Forming a UV pattern layer positioned under the color reflection layer;
Forming a deposition layer located under the UV pattern layer; and
Forming a silk printing layer located under the deposition layer; containing, decoration film manufacturing method. According to claim 5,
The color reflection layer,
forming a first color layer by coating a color coating solution on one surface of the first PET layer;
forming a second color layer by coating the color coating liquid on one surface of the second PET layer;
forming a reflection enhancement layer by coating a reflection coating solution on one surface of the third PET layer;
forming a first adhesive layer on the other surface of the first color layer in a direction opposite to that of the first PET layer;
forming a second adhesive layer on the other surface of the second color layer in a direction opposite to that of the second PET layer;
laminating the reflection enhancement layer on the second adhesive layer and removing the third PET layer;
laminating the first adhesive layer on the reflection enhancement layer exposed by removing the third PET layer, and removing the first PET layer; and
Forming an anti-scattering film on the first color layer exposed by removing the first PET layer; to be manufactured, the decoration film manufacturing method including.

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