KR102184896B1 - Coating composition and functional film using the same - Google Patents

Abstract

The present invention relates to a high-elongation functional film in which a coating layer is applied to a substrate constituting a decorative film for furniture molding, and more particularly, it comprises a substrate and a coating layer coated on the upper or lower surface of the substrate, or both, High functional properties such as elongation at high temperature, solvent resistance, chemical resistance, fouling resistance, abrasion resistance, high gloss, and yellowing resistance are provided, so chemical resistance to solvents such as laccassinna, ethanol, benzene, etc., used in furniture processing and manufacturing, and household chemistry It relates to a functional film with a high elongation that improves resistance to products, contamination resistance by food materials and writing instruments used for cooking, and surface hardness.

Description

UV curable high elongation and high functional coating composition and functional film using the same {COATING COMPOSITION AND FUNCTIONAL FILM USING THE SAME}

The present invention relates to a high elongation and high functional coating liquid composition in which a coating layer is applied to a substrate constituting a decorative film for furniture molding, and a functional film using the same, and more particularly, to a substrate, an upper surface or a lower surface of the substrate, or both Solvents such as laccasinna, ethanol, benzene, etc., which are used in furniture processing and manufacturing, as it includes high-temperature elongation, solvent resistance, chemical resistance, stain resistance, abrasion resistance, high gloss, and yellowing resistance. The present invention relates to a high elongation and high functional coating liquid composition with improved chemical resistance to chemical resistance, resistance to household chemical products, contamination resistance and surface hardness by food materials and writing instruments used for cooking, and a functional film using the same.

Depending on the color of the surface of decorative materials such as wooden products or furniture and whether or not they have gloss, apply an adhesive between the adherend and the decorative material using a PET film coated with a thermosetting resin, and then spray paint or molding on the side. The process of decorating furniture materials is being adopted.

However, there is a risk that harmful substances are released into the atmosphere during the manufacturing process due to the volatile organic compounds used to increase the wettability of the paint in the case of spray painting for decoration of the front/rear surfaces during wood processing. The method has a difficulty in that an additional process for processing the product occurs.

In order to solve such problems in the environment and manufacturing process, research and development have been continued to solve the above-described problems through vacuum molding and pressure molding using 3D deco sheets.
As such a prior art, there is Patent No. 10-1772613 "a composition for forming a coating layer having a self-recovering property, a coating layer and a film",
The prior art is a poly (alkylene glycol having 2 to 4 carbon atoms) modified polyfunctional urethane (meth) acrylate binder; Bifunctional or higher polyfunctional (meth)acrylate compounds; UV initiator; And silica nanoparticles, wherein the binder has a trifunctional or higher urethane bond, and a poly(alkylene glycol having 2 to 4 carbon atoms) modified (meth)acrylate-based compound is each bonded through the urethane bond, At least two of the poly(alkylene glycol having 2 to 4 carbon atoms) modified (meth)acrylate-based compounds bonded to each urethane bond are poly(alkylene glycol having 2 to 4 carbon atoms) repeating units having different repetitions It proposes a technology that includes,
As in the prior art, development of technologies for forming various functional coating layers is in progress.

In addition, since the manufacturing process of the existing 3D decor sheet forms a coating film by heating after applying a thermosetting resin on the base film, harmful substances such as volatile organic compounds are released due to the organic solvent used when the resin is applied, thereby polluting the environment. There is a problem that causes problems, and it is often located indoors according to the spatial and layout characteristics of furniture, and if ventilation is not properly performed, there is a high risk of volatile organic compounds being continuously generated indoors and toxic substances accumulating in the air. In addition, in the case of thermosetting resin, there is a problem that yellowing continuously occurs over time. Due to the nature of the thermal curing process, the time required for production is longer than that of UV curing resin, and the investment cost of the initial production facility is higher than that of UV curing There is a disadvantage that a large production space is required.

Therefore, the present invention was devised to solve the above problem,

A coating solution capable of imparting functional performance, such as high temperature elongation, solvent resistance, chemical resistance, stain resistance, abrasion resistance, high gloss, and yellowing resistance, including a substrate and a coating layer coated on the upper or lower surface of the substrate, or both It is an object of the present invention to provide a composition and a functional film using the same.
In addition, it is another object to provide wood-processed products, furniture products, decorative products, automobile decoration products, and panel products including the functional film.

The oligomer mixture for imparting functionality includes 32.2 to 35.4 wt% of the coating solution, the monomer mixture contains 49.1 to 51.4 wt% of the coating solution, the additive 1.4 to 1.5 wt% of the coating solution, and the photoinitiator 5.6 to 6.0 wt% of the coating solution. ,
The oligomer mixture is a mixture of a difunctional urethane acrylate oligomer, a trifunctional urethane acrylate, and a difunctional urethane acrylate,
The monomer mixture is made of a mixture of isobornyl acrylate and pentaerythritol triacrylate,
The additive is a mixture of a slip agent and an antifoam agent used to improve slip properties,
The photoinitiator is 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) and , It consists of a mixture of hydroxy dimethyl acetophenone (Hydroxy dimethyl acetophenone [HP8]),
Characterized in that it further comprises 8.5 to 8.9 wt% of functional particles consisting of surface-modified alumina nanoparticles in the coating solution,

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Functional film using the coating liquid composition according to the present invention
materials;
A coating layer coated on an upper surface or a lower surface of the substrate, or both;
Is made of,

The coating liquid composition forming the coating layer
An oligomer mixture comprising a difunctional urethane acrylate oligomer, a trifunctional urethane acrylate, and a difunctional urethane acrylate,
A monomer mixture containing isobornyl acrylate and pentaerythritol triacrylate, and
It characterized in that it comprises functional particles made of surface-modified alumina nanoparticles.

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As described above, the high elongation and high functional coating composition according to the present invention and the functional film using the same

It consists of a substrate and a coating layer coated on the upper or lower surface of the substrate, or both,

By including a functional material with a high elongation in the coating layer, chemical resistance to solvents such as laccasinna, ethanol, benzene, etc. used in furniture processing and manufacturing, resistance to household chemicals, food materials and writing instruments used during cooking It has the effect of improving stain resistance and surface hardness.

1 and 2 are cross-sectional views of a high elongation functional film according to the present invention
3 is a graph of elongation according to temperature and speed of Example 6 of a high elongation functional film according to the present invention
4 is a graph of elongation according to temperature and speed of Example 9 of a high elongation functional film according to the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numerals, in particular the number of tens and ones, or the same number of tens, ones, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference number can be identified as a member conforming to these criteria.

In addition, the components in each drawing are expressed by exaggeratingly large (or thick) or small (or thin) or simplified the size or thickness in consideration of the convenience of understanding, but this limits the scope of protection of the present invention. It shouldn't be.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as ~include~ or ~consist~ are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

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Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

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The present invention is characterized by comprising a substrate and a coating layer coated on one or both sides of the substrate, that is, an upper surface or a lower surface, or both of the substrate, as shown in FIG. 1.

Hereinafter, the coating solution composition in the present specification refers to coating a substrate to form the coating layer, and the coating layer is formed as the coating solution is cured.

The coating composition includes 32.2 to 35.4 wt% of the oligomer mixture for imparting functionality, 49.1 to 51.4 wt% of the coating solution for the monomer mixture, 1.4 to 1.5 wt% of the coating solution for the additive, 5.6 to 6.0 wt% for the photoinitiator, and The functional particles made of surface-modified alumina nanoparticles may further include 8.5 to 8.9 wt% of the coating solution, which will be described in more detail in describing the functional film.

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Again, the coating layer forms an organic/inorganic layer containing functional particles surface-treated with a surface treatment agent,

The organic/inorganic layer may further include at least one of a photo initiator, an additive consisting of a slip agent and an antifoaming agent, and a UV-curable resin.

In addition, the substrate is preferably made of any one of PET, PI, PEN, TAC, PE, PP, PMMA, and PC.
The oligomer mixture for imparting functionality is 32.2 ~ 35.4 wt% in the coating solution, the monomer mixture is 49.1 ~ 51.4 wt% in the coating solution, the additive is 1.4 ~ 1.5 wt% in the coating solution, the photoinitiator is 5.6 ~ 6.0 wt% in the coating solution and surface-modified alumina Functional particles made of nanoparticles may further contain 8.5 to 8.9 wt% of the coating solution.

Specifically, the coating layer is a monomer isobornyl acrylate (Isobornyl Acrylate) 48.1 wt% in the coating solution, pentaerythritol triacrylate (Pentaerythritol Triacrylate) 1.0 wt% in the coating solution,
14.2 wt% of difunctional urethane acrylate oligomer, trifunctional urethane acrylate 9.4 wt%, and 11.8 wt% of difunctional urethane acrylate
0.9 wt% of the slip agent as an additive in the coating solution, 0.5 wt% of the antifoam agent in the coating solution,
The photoinitiator, 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]) was added to 3.8 wt% in the coating solution, and hydroxy cyclohexyl phenyl ketone [ CP4]) in 0.9 wt% of the coating solution and 0.9 wt% of hydroxy dimethyl acetophenone [HP8] in the coating solution.

In addition, it is preferable that the coating layer further includes functional particles made of surface-modified alumina nanoparticles, and in this case, the functional particles contain 8.5 wt%.

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In addition, the urethane acrylate oligomer mixture includes a bifunctional urethane acrylate oligomer (hereinafter referred to as oligomer A), a trifunctional urethane acrylate (hereinafter referred to as oligomer B), and a bifunctional urethane acrylate (hereinafter referred to as oligomer C). ), wherein the mixing ratio thereof, that is, the mixing ratio of A:B:C is 0.31:0.31:0.38 or 0.47:0.23:0.3 or 0.23:0.47:0.3 or 0.4:0.27 based on the weight% It is preferably composed of :0.33 or 0.27:0.40:0.33 or 0.27:0.27:0.46,

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In addition, the photoinitiator is 2-hydroxyl-2-methyl-1-phenyl propanone, n-butylamine, triethylamine, 2-hydroxyl-1-(4-(2-hydroxyethoxy)phenyl)-2 -Methylpropanone, 1-hydroxycyclohexylphenylmethanone, 2,2'-dimethoxy-1,2-diphenylethanone, diphenylphosphorylmesitylmethanone, fenylphosphorylbis(mesitylmethanone ), (s)-2-benzyl-2-(dimethylamino)-1-(4-merpolynophenyl)butanone, 2-methyl-2-(4-(methylio)phenyl)-2-merpoly It is characterized in that at least one selected from the group consisting of nopropanone.

Hereinafter, the present invention will be described in more detail through the following examples,

First, a method for evaluating the following Examples and Comparative Examples was used in the following manner.

1. Elongation measurement

The elongation rate of the film was measured using a universal testing machine [Shimadzu's JP/AG-250kNX model], and the measurement and processing of the specimen was performed using the ISO 1798 standard.

The elongation measurement conditions were preheated for 1 hour at the temperature to be measured using a high-temperature chamber, and after a tensile test, the distance between the marks from the midpoint on the surface of the processed specimen was 40 mm, as shown in Formula 1 below. The elongation was measured according to and the elongation was measured by visually discriminating changes in gloss or distortion of the surface of the coating film.

Formula 1: E _b =LL ₀ /L ₀ X100

E _b : elongation, unit (%)

L: length of the elongated specimen, unit (mm)

L ₀ : Length of initial specimen, unit (mm)

2. Pencil hardness

Pencil hardness was measured with a load of 200 g using a pencil hardness tester according to ASTM D3502 measurement method.

3. Adhesion

According to the KS M ISO 2409 test method, the degree of the peeled part after the tape adhesion test among 100 1 X 1 mm scales was classified and evaluated as follows.

1) Class 0: The cut surface is smooth. There are no stripped square grids.

2) Category 1: Small pieces of the coating film are peeled off at the intersection of the cutting line. Exfoliated crosscut area is within 5%

3) Class 2: The coating is peeled off into small pieces along the cut surface and/or at the intersection of the cut lines. Exfoliated crosscut area is 5% to 15%

4) Class 3: The coating film is in the form of a large ribbon, part or all of which is peeled off into small pieces along the cutting plane and/or in other parts of the square. 15% to 35% of the exfoliated crosscut area

5) Class 4: The coating film is peeled into small pieces along the cut in the form of a large ribbon and/or part or all of the square is peeled off. Exfoliated crosscut area is 35% to 65%

6) Category 5: Flaking not even in Category 4

4. Pollution resistance

According to the standard specification of high-pressure veneer-thermosetting resin sheet (KS M ISO 4586-2), it was classified as follows according to the result indication specified in the measurement method.

1) Grade 5: No change in appearance

2) Grade 4: A slight change in gloss and/or color observed only at certain viewing angles.

3) Grade 3: Medium change in gloss and/or color

4) Grade 2: Significant change in gloss and/or color

5) Grade 1: Gloss surface distortion and/or swelling

[Table 1-1] Coating liquid composition example formulation table

[Table 1-2] Coating liquid composition comparative example formulation table

[Table 2-1] Properties of Example Coating Films After UV Curing of Coating Composition

[Table 2-2] Comparative Example Physical Properties of Coating Film After UV Curing of Coating Composition

[Example 1 to Comparative Example 1]

[Example 1]

Isobornyl Acrylate, which is used as a diluent for the coating solution, is 56.8 parts by weight in the coating solution. Pentaerythritol Triacrylate is 1.0 part by weight in the coating solution, and triketylolpropane trimeta for controlling the photocuring rate 4.7 parts by weight of acrylate (Trimethylolpropane Trimethacrylate) in the coating solution, 9.4 parts by weight of A in the coating solution for improving stain resistance and surface hardness, 9.4 parts by weight of oligomer B in the coating solution for improving adhesion, oligomer for improving elongation C is 11.8 parts by weight of the coating solution, and 0.9 parts by weight of TEGO Glide 410 (EVONIK), a slip agent used to improve the slip properties of the surface of the coating film, is 0.9 parts by weight of the coating solution, and TEGO Airex 920 (EVONIK), a defoaming agent for removing air bubbles in the coating solution. Company) 0.5 parts by weight of the coating solution, the coating composition 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl), which are photoinitiators for initiating photocuring according to UV irradiation. Phosphine[TPO]) was added in 3.7 parts by weight of the coating solution, 0.9 parts by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution, and hydroxy dimethyl acetophenone (HP8]) in the coating solution. In order to prevent photocuring from an external light source by adding 0.9 parts by weight, for homogeneous mixing of the composition in a batch reactor capable of blocking ultraviolet rays, 1 at 1,000 RPM using a mechanical stirrer and dissolver at room temperature (23 ℃ ㅁ 3℃). After stirring for a period of time, a UV coating agent for 3D decor sheets was prepared.

For the purpose of preventing deterioration of the curing degree due to oxygen during UV curing after applying the UV curing coating solution prepared above on a 400 um thick non-stretched PET film of Hanwha L&C used as a base film to form a high elongation film. SH-71S (SKC) 100 um industrial PET film covers the surface of the humidity film and compresses it with a Roll Coater. Then, use a Rittgen UV curing machine to apply a high-pressure mercury lamp to the UV-A area of 500 mJ/cm ² A film having a coating layer thickness of 10 um was prepared by irradiating the amount of light.

[Comparative Example 1]

Isobornyl Acrylate, which is used as a diluent for the coating solution, is 56.5 parts by weight in the coating solution, and 1.0 parts by weight of Pentaerythritol Triacrylate in the coating solution, and triketylolpropane trimeta for controlling the photocuring rate. 4.7 parts by weight of acrylate (trimethylolpropane trimethacrylate) in the coating solution, 18.8 parts by weight of oligomer D to improve stain resistance and surface hardness in the coating solution, 11.8 parts by weight of oligomer E in the coating solution to improve elongation, slip property of the surface of the coating film 1.0 parts by weight of TEGO Glide 410 (EVONIK), an additive used to improve the coating solution, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating solution, 0.5 parts by weight of the coating solution, the above coating composition 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), a photoinitiator for initiating photocuring according to UV irradiation, was added in 3.7 parts by weight of the coating solution, Add 1.0 part by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution and 1.0 part by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution to prevent photocuring from external light sources For homogeneous mixing of the composition in a batch reactor capable of blocking UV rays, a UV coating agent for 3D decor sheets was prepared after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and a dissolver at room temperature (23 ℃ 3 ℃). .

In addition to using the coating composition of Comparative Example 1, production of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 1 according to the oligomer A, B, C formulation, elongation 107.1%, pencil hardness B, adhesion classification 0, solvent resistance and stain resistance It shows a good state, but in comparison, 1 is reduced to 87.9% elongation according to oligomer D and E combination, and the surface hardness is lowered as pencil hardness 3B, but the adhesiveness is classification 1, peeling appears at the intersection of the cutting line, and the solvent resistance is equal. Level, and the resistance to black magic was lowered among the contamination resistance.

[Example 2 to Comparative Example 2]

[Example 2]

To increase the surface hardness, 7.8 parts by weight of the surface-modified alumina nanoparticles in the coating solution, isobornyl acrylate used as a diluent for the coating solution, and 43.4 parts by weight in the coating solution Pentaerythritol Triacrylate is used as a coating solution. 1.0 part by weight of the weight, 4.3 parts by weight of Trimethylolpropane Trimethacrylate in the coating solution to control the photocuring rate, 17.2 parts by weight of Oligomer A in the coating solution to improve stain resistance and surface hardness, adhesion 8.6 parts by weight of oligomer B in the coating solution to improve the elongation, 10.8 parts by weight of oligomer C in the coating solution to improve the elongation, and TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, are used as a coating solution. 0.9 parts by weight of the weight, 0.5 parts by weight of TEGO Airex 920 (EVONIK), a defoaming agent for removing air bubbles in the coating solution, and 0.5 parts by weight of the coating composition, 2, 4, 6, which are photoinitiators for initiating photocuring according to UV irradiation. -Trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]) in 3.7 parts by weight in the coating solution, and hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) in 0.9 in the coating solution In order to prevent photocuring from an external light source by adding 0.9 parts by weight of hydroxy dimethyl acetophenone (HP8]) in the coating solution, in order to prevent photocuring from an external light source, UV protection is possible at room temperature for homogeneous mixing of the composition ( 23 ℃ ㅁ 3 ℃) using a mechanical stirrer and a dissolver bar was stirred for 1 hour at 1,000 RPM to prepare a UV coating for 3D decor sheet.

In addition to using the coating composition of Example 2, preparation of a high elongation film was the same as in Example 1.

[Comparative Example 2]

Isobornyl Acrylate, which is used as a diluent for the coating solution, is 50.5 parts by weight of the coating solution, and 1.0 parts by weight of Pentaerythritol Triacrylate is used in the coating solution, and triketylolpropane trimetha is used to control the photocuring rate. 4.7 parts by weight of acrylate (trimethylolpropane trimethacrylate) in the coating solution, 25.8 parts by weight of oligomer D for improving stain resistance and surface hardness in the coating solution, 10.8 parts by weight of oligomer E in the coating solution for improving elongation, slip property of the surface of the coating film 1.0 parts by weight of TEGO Glide 410 (EVONIK), an additive used to improve the coating solution, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating solution, 0.5 parts by weight of the coating solution, the above coating composition 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), a photoinitiator for initiating photocuring according to UV irradiation, was added in 3.7 parts by weight of the coating solution, Add 1.0 part by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution and 1.0 part by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution to prevent photocuring from external light sources For homogeneous mixing of the composition in a batch reactor capable of blocking UV rays, a UV coating agent for 3D decor sheets was prepared after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and a dissolver at room temperature (23 ℃ 3 ℃). .

In addition to using the coating composition of Comparative Example 2, the preparation of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 2 according to the oligomer A, B, C formulation, elongation 90.4%, pencil hardness HB, adhesion classification 0, solvent resistance and stain resistance It shows a good state, but in comparison, the elongation of 2 shows a remarkable decrease of 64.2% depending on the combination of oligomers D and E, the pencil hardness is 2B, the surface hardness is low, and the adhesion is classification 3, and some of the squares are at the intersection of the cutting line. Peeling appeared in small pieces, the solvent resistance was at the same level, and the resistance to mustard was decreased among the stain resistance.

[Example 3 to Comparative Example 3]

[Example 3]

To increase the surface hardness, 7.8 parts by weight of the surface-modified alumina nanoparticles in the coating solution, isobornyl acrylate used as a diluent for the coating solution, and 43.4 parts by weight in the coating solution Pentaerythritol Triacrylate is used as a coating solution. 1.0 parts by weight of the weight, 4.3 parts by weight of the coating solution with Trimethylolpropane Trimethacrylate for controlling the photocuring rate, 8.6 parts by weight of the coating solution with Oligomer A for improving stain resistance and surface hardness, adhesion 17.2 parts by weight of oligomer B in the coating solution to improve the elongation, 10.8 parts by weight of oligomer C in the coating solution to improve the elongation, and TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, are used as a coating solution. 0.9 parts by weight of the weight, 0.5 parts by weight of TEGO Airex 920 (EVONIK), a defoaming agent for removing air bubbles in the coating solution, and 0.5 parts by weight of the coating composition, 2, 4, 6, which are photoinitiators for initiating photocuring according to UV irradiation. -Trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]) in 3.7 parts by weight in the coating solution, and hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) in 0.9 in the coating solution In order to prevent photocuring from an external light source by adding 0.9 parts by weight of hydroxy dimethyl acetophenone (HP8]) in the coating solution, in order to prevent photocuring from an external light source, UV protection is possible at room temperature for homogeneous mixing of the composition ( 23 ℃ ㅁ 3 ℃) using a mechanical stirrer and a dissolver bar was stirred for 1 hour at 1,000 RPM to prepare a UV coating for 3D decor sheet.

In addition to using the coating composition of Example 3, production of a high elongation film was the same as in Example 1.

[Comparative Example 3]

Isobornyl Acrylate, which is used as a diluent for the coating solution, is 50.5 parts by weight of the coating solution, and 1.0 parts by weight of Pentaerythritol Triacrylate is used in the coating solution, and triketylolpropane trimetha is used to control the photocuring rate. 4.7 parts by weight of acrylate (trimethylolpropane trimethacrylate) in the coating solution, 10.8 parts by weight of oligomer D to improve stain resistance and surface hardness in the coating solution, 25.8 parts by weight of oligomer E in the coating solution to improve elongation, slip property of the surface of the coating film 1.0 parts by weight of TEGO Glide 410 (EVONIK), an additive used to improve the coating solution, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating solution, 0.5 parts by weight of the coating solution, the above coating composition 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), a photoinitiator for initiating photocuring according to UV irradiation, was added in 3.7 parts by weight of the coating solution, Add 1.0 part by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution and 1.0 part by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution to prevent photocuring from external light sources For homogeneous mixing of the composition in a batch reactor capable of blocking UV rays, a UV coating agent for 3D decor sheets was prepared after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and a dissolver at room temperature (23 ℃ 3 ℃). .

In addition to using the coating composition of Comparative Example 3, production of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 3 according to the oligomer A, B, C formulation, elongation 96.3%, pencil hardness B, adhesion classification 0, solvent resistance and stain resistance It shows a good state, but in comparison, according to the combination of oligomers D and E in 3, the elongation decreases to 72.8%, the surface hardness decreases as the pencil hardness 2B, and the adhesion is classification 2, small pieces peel off at the intersection of the cutting line. Among the solvent resistance, resistance to laccasinna and pollution resistance to black magic were lowered.

[Example 4 to Comparative Example 4]

[Example 4]

To increase the surface hardness, 8.5 parts by weight of surface-modified alumina nanoparticles in the coating solution, isobornyl acrylate used as a diluent for the coating solution, and 48.2 parts by weight of pentaerythritol triacrylate in the coating solution 1.0 parts by weight of the weight, 4.7 parts by weight of Trimethylolpropane Trimethacrylate in the coating solution to control the photocuring rate, 18.9 parts by weight of Oligomer A in the coating solution to improve stain resistance and surface hardness, elongation rate 11.8 parts by weight of Oligomer C in the coating solution to improve the coating solution, and 0.9 parts by weight of TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, are used as a defoaming agent to remove air bubbles in the coating solution. 0.5 parts by weight of TEGO Airex 920 (EVONIK) in the coating solution, 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, and 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine, which are photoinitiators for initiating photocuring of the coating composition according to UV irradiation). 3.7 parts by weight of 6-Trimethylbenzoyl-dipenyl Phosphine [TPO] in the coating solution, 0.9 parts by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution, and hydroxy dimethyl acetophenone [HP8] ]) to prevent photocuring from an external light source by adding 0.9 parts by weight of the coating solution, using a mechanical stirrer and dissolver at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking UV rays Then, after stirring at 1,000 RPM for 1 hour, a UV coating agent for 3D decor sheet was prepared.

In addition to using the coating composition of Example 4, production of a high elongation film was the same as in Example 1.

[Comparative Example 4]

Isobornyl Acrylate, which is used as a diluent for the coating solution, is 56.4 parts by weight in the coating solution. Pentaerythritol Triacrylate is 1.0 part by weight in the coating solution, and triketylolpropane trimetha is used to control the photocuring rate. 4.7 parts by weight of acrylate (trimethylolpropane trimethacrylate) in the coating solution, 18.9 parts by weight of oligomer D to improve stain resistance and surface hardness in the coating solution, 11.8 parts by weight of oligomer E in the coating solution to improve elongation, slip property of the surface of the coating film 1.0 parts by weight of TEGO Glide 410 (EVONIK), an additive used to improve the coating solution, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating solution, 0.5 parts by weight of the coating solution, the above coating composition 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), a photoinitiator for initiating photocuring according to UV irradiation, was added in 3.7 parts by weight of the coating solution, Add 1.0 part by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution and 1.0 part by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution to prevent photocuring from external light sources For homogeneous mixing of the composition in a batch reactor capable of blocking UV rays, a UV coating agent for 3D decor sheets was prepared after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and a dissolver at room temperature (23 ℃ 3 ℃). .

In addition to using the coating composition of Comparative Example 4, production of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 4 has good elongation of 110.8%, pencil hardness HB, adhesion classification 0, solvent resistance and stain resistance according to oligomer A and C formulation. In comparison, 4 shows a decrease in the elongation to 96.3% depending on the combination of oligomers D and E, and the pencil hardness is 4B, the surface hardness is significantly lower, the adhesion is good, and the solvent resistance of laccassina and stain resistance are black magic. Resistance to lowering.

[Example 5 to Comparative Example 5]

[Example 5]

To increase the surface hardness, 8.5 parts by weight of surface-modified alumina nanoparticles in the coating solution, isobornyl acrylate used as a diluent for the coating solution, and 48.2 parts by weight of pentaerythritol triacrylate in the coating solution 1.0 parts by weight of the weight, 4.7 parts by weight of Trimethylolpropane Trimethacrylate in the coating solution for controlling the photocuring rate, 18.9 parts by weight of Oligomer B in the coating solution for enhancing adhesion, for improving the elongation 11.8 parts by weight of oligomer C in the coating solution, TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, is 0.9 parts by weight in the coating solution, and TEGO Airex 920 (a defoaming agent for removing air bubbles in the coating solution) EVONIK) 0.5 parts by weight of the coating solution, and the above coating composition is 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-), which is a photoinitiator for initiating photocuring according to UV irradiation. 3.7 parts by weight of dipenyl Phosphine[TPO]) in the coating solution, 0.9 parts by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution, and hydroxy dimethyl acetophenone [HP8] in the coating solution In order to prevent photocuring from external light sources by adding 0.9 parts by weight of the mixture, use a mechanical stirrer and dissolver at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking UV rays at 1,000 RPM. After stirring for 1 hour, a UV coating agent for 3D decor sheets was prepared.

In addition to using the coating composition of Example 5, preparation of a high elongation film was the same as in Example 1.

[Comparative Example 5]

Isobornyl Acrylate, which is used as a diluent of the coating solution, is used in 61.1 parts by weight of the coating solution, and pentaerythritol triacrylate is used in an amount of 1.0 parts by weight in the coating solution, and Oligomer D is used to improve stain resistance and surface hardness. 18.9 parts by weight of the coating solution, 11.8 parts by weight of Oligomer E to improve the elongation, 11.8 parts by weight of the coating solution, TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, 1.0 parts by weight of the coating solution, bubbles in the coating solution 0.5 parts by weight of TEGO Airex 920 (EVONIK), an antifoaming agent for removing, in the coating solution, 2, 4, 6-trimethylbenzoyl-diphenyl-phos, which is a photoinitiator for initiating photocuring of the coating composition according to UV irradiation. Pin (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine[TPO]) in the coating solution 3.7 parts by weight, hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) in the coating solution 1.0 parts by weight, hydroxy dimethyl acetophenone (Hydroxy dimethyl acetophenone[HP8]) is added to 1.0 part by weight of the coating solution to prevent photocuring from an external light source. To prevent photocuring from an external light source, it is mechanical at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking UV rays. After stirring for 1 hour at 1,000 RPM using a stirrer and a dissolver, a UV coating agent for 3D decor sheets was prepared.

In addition to using the coating composition of Comparative Example 5, preparation of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 5 has good elongation of 95.0%, pencil hardness 2B, adhesion classification 0, solvent resistance and stain resistance according to oligomer B and C formulation. In Comparative Example 5, depending on the formulation of oligomers D and E, the elongation decreased to 83.7%, the pencil hardness decreased to 3B, and the adhesion and solvent resistance were at the same level, and the resistance to black magic among stain resistance was Lowered.,

[Example 6 to Comparative Example 6]

[Example 6]

To increase the surface hardness, 8.9 parts by weight of surface-modified alumina nanoparticles in the coating solution, isobornyl acrylate used as a diluent for the coating solution, 50.4 parts by weight in the coating solution, pentaerythritol triacrylate, a coating solution 1.0 parts by weight of oligomer A to improve stain resistance and surface hardness, 9.9 parts by weight of oligomer B to improve adhesion, 9.9 parts by weight of oligomer B to improve elongation, 12.4 parts by weight of oligomer C to improve elongation , TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, is 1.0 parts by weight of the coating liquid, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating liquid, is 0.5 weight of the coating liquid. Part, 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), which is a photoinitiator for initiating photocuring according to UV irradiation, is applied to the coating composition 4.0 parts by weight of hydroxycyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) and 1.0 parts by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution were added to the outside. 3D decor sheet after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and dissolver at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking ultraviolet rays to prevent photocuring from the light source A UV coating agent was prepared.

In addition to using the coating composition of Example 6, preparation of a high elongation film was the same as in Example 1.

[Comparative Example 6]

Isobornyl Acrylate, which is used as a diluent for the coating solution, is 59.3 parts by weight in the coating solution, and 1.0 parts by weight in the coating solution, Pentaerythritol Triacrylate, and Oligomer D for improving stain resistance and surface hardness. 19.8 parts by weight of the coating solution, 12.4 parts by weight of Oligomer E to improve the elongation of the coating solution, TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, 1.0 parts by weight of the coating solution, bubbles in the coating solution 0.5 parts by weight of TEGO Airex 920 (EVONIK), an antifoaming agent for removing, in the coating solution, 2, 4, 6-trimethylbenzoyl-diphenyl-phos, which is a photoinitiator for initiating photocuring of the coating composition according to UV irradiation. Pin (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine[TPO]) in the coating solution 4.0 parts by weight, hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone[CP4]) in the coating solution 1.0 parts by weight, hydroxy dimethyl acetophenone (Hydroxy dimethyl acetophenone[HP8]) is added to 1.0 part by weight of the coating solution to prevent photocuring from an external light source. To prevent photocuring from an external light source, it is mechanical at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking UV rays. After stirring for 1 hour at 1,000 RPM using a stirrer and a dissolver, a UV coating agent for 3D decor sheets was prepared.

In addition to using the coating composition of Comparative Example 6, preparation of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 6 according to the oligomer A, B, C formulation, elongation 145.4%, pencil hardness 2B, adhesion classification 0, solvent resistance and stain resistance It shows a good state, but in Comparative Example 6, depending on the combination of oligomers D and E, the elongation was markedly reduced to 100.2%, and the pencil hardness was reduced by 4B, and the adhesion was good, but in the solvent resistance of laccasinna and fouling resistance, the black magic The resistance to this was lowered.

The elongation according to temperature was 148.3%, the highest elongation at 78°C, as shown in FIG. 3[A]. As shown in FIG. 3[B], even when the cross-head speed is changed, the elongation is large. As there was no change, it was confirmed that there was no change in the formability according to the molding speed.

[Example 7 to Comparative Example 5]

To increase the surface hardness, 8.5 parts by weight of surface-modified alumina nanoparticles in the coating solution, Isobornyl Acrylate used as a diluent for the coating solution, 48.1 parts by weight in the coating solution Pentaerythritol Triacrylate is used as a coating solution. 1.0 parts by weight of oligomer A to improve stain resistance and surface hardness, 14.2 parts by weight of oligomer B to improve adhesion, 9.4 parts by weight of oligomer B to improve elongation, 11.8 parts by weight of oligomer C to improve elongation , TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film, is 0.9 parts by weight in the coating solution, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating solution, is 0.5 parts by weight in the coating solution Part, 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), which is a photoinitiator for initiating photocuring according to UV irradiation, is applied to the coating composition 3.8 parts by weight, 0.9 parts by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution, and 0.9 parts by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution were added. 3D decor sheet after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and dissolver at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking ultraviolet rays to prevent photocuring from the light source A UV coating agent was prepared.

In addition to using the coating composition of Example 7, the preparation of a high elongation film was the same as in Example 1.

[Comparative Example 5]

Isobornyl Acrylate, which is used as a diluent of the coating solution, is used in 61.1 parts by weight of the coating solution, and pentaerythritol triacrylate is used in an amount of 1.0 parts by weight in the coating solution, and Oligomer D is used to improve stain resistance and surface hardness. 18.9 parts by weight of the coating solution, 11.8 parts by weight of Oligomer E to improve the elongation, 11.8 parts by weight of the coating solution, TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, 1.0 parts by weight of the coating solution, bubbles in the coating solution 0.5 parts by weight of TEGO Airex 920 (EVONIK), an antifoaming agent for removing, in the coating solution, 2, 4, 6-trimethylbenzoyl-diphenyl-phos, which is a photoinitiator for initiating photocuring of the coating composition according to UV irradiation. Pin (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine[TPO]) in the coating solution 3.7 parts by weight, hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) in the coating solution 1.0 parts by weight, hydroxy dimethyl acetophenone (Hydroxy dimethyl acetophenone[HP8]) is added to 1.0 part by weight of the coating solution to prevent photocuring from an external light source. To prevent photocuring from an external light source, it is mechanical at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking UV rays. After stirring for 1 hour at 1,000 RPM using a stirrer and a dissolver, a UV coating agent for 3D decor sheets was prepared.

In addition to using the coating composition of Comparative Example 5, preparation of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 7 according to the oligomer A, B, C formulation, elongation of 299.6%, pencil hardness 2H, adhesion classification 0, solvent resistance and stain resistance Although it shows a poor state, in Comparative Example 5, depending on the formulation of oligomers D and E, the elongation was significantly reduced to 90.6%, and the pencil hardness was 3B, resulting in a significant decrease, and the resistance to black magic and mustard was low.

[Examples 8 to 5]

[Example 8]

To increase the surface hardness, 8.5 parts by weight of surface-modified alumina nanoparticles in the coating solution, Isobornyl Acrylate used as a diluent for the coating solution, 48.1 parts by weight in the coating solution Pentaerythritol Triacrylate is used as a coating solution. 1.0 parts by weight of oligomer A to improve stain resistance and surface hardness, 9.4 parts by weight of oligomer B to improve adhesion, 14.2 parts by weight of oligomer B in the coating solution, and 11.8 parts by weight of oligomer C to improve elongation in the coating solution , TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film, is 0.9 parts by weight in the coating solution, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating solution, is 0.5 parts by weight in the coating solution. Part, 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), which is a photoinitiator for initiating photocuring according to UV irradiation, is applied to the coating composition 3.8 parts by weight of the coating solution, 0.9 parts by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution, and 0.9 parts by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution were added. 3D decor sheet after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and dissolver at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking ultraviolet rays to prevent photocuring from the light source A UV coating agent was prepared.

In addition to using the coating composition of Example 8, production of a high elongation film was the same as in Example 1.

[Comparative Example 5]

Isobornyl Acrylate, which is used as a diluent of the coating solution, is used in 61.1 parts by weight of the coating solution, and pentaerythritol triacrylate is used in an amount of 1.0 parts by weight in the coating solution, and Oligomer D is used to improve stain resistance and surface hardness. 18.9 parts by weight of the coating solution, 11.8 parts by weight of Oligomer E to improve the elongation, 11.8 parts by weight of the coating solution, TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, 1.0 parts by weight of the coating solution, bubbles in the coating solution 0.5 parts by weight of TEGO Airex 920 (EVONIK), an antifoaming agent for removing, in the coating solution, 2, 4, 6-trimethylbenzoyl-diphenyl-phos, which is a photoinitiator for initiating photocuring of the coating composition according to UV irradiation. Pin (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine[TPO]) in the coating solution 3.7 parts by weight, hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) in the coating solution 1.0 parts by weight, hydroxy dimethyl acetophenone (Hydroxy dimethyl acetophenone[HP8]) is added to 1.0 part by weight of the coating solution to prevent photocuring from an external light source. To prevent photocuring from an external light source, it is mechanical at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking UV rays. After stirring for 1 hour at 1,000 RPM using a stirrer and a dissolver, a UV coating agent for 3D decor sheets was prepared.

In addition to using the coating composition of Comparative Example 5, preparation of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 8 according to the oligomer A, B, C formulation, elongation 150.4%, pencil hardness HB, adhesion classification 0, solvent resistance and stain resistance It shows a good state, but in Comparative Example 5, depending on the combination of oligomers D and E, the elongation decreases to 90.6%, and the pencil hardness is 3B, resulting in a decrease, and among the stain resistance, resistance to black magic and mustard was low.

[Examples 9 to 7]

[Example 9]

To increase the surface hardness, 8.5 parts by weight of surface-modified alumina nanoparticles in the coating solution, isobornyl acrylate used as a diluent for the coating solution, and 48.2 parts by weight of pentaerythritol triacrylate in the coating solution 1.0 parts by weight of oligomer A to improve stain resistance and surface hardness, 9.4 parts by weight of oligomer B to improve adhesion, 9.4 parts by weight of oligomer B in the coating solution, 16.5 parts by weight of oligomer C to improve elongation in the coating solution , TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film, is 0.9 parts by weight in the coating solution, and TEGO Airex 920 (EVONIK), an antifoaming agent for removing air bubbles in the coating solution, is 0.5 parts by weight in the coating solution. Part, 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), which is a photoinitiator for initiating photocuring according to UV irradiation, is applied to the coating composition 3.8 parts by weight of the coating solution, 0.9 parts by weight of hydroxy cyclohexyl phenyl ketone [CP4] in the coating solution, and 0.9 parts by weight of hydroxy dimethyl acetophenone [HP8] in the coating solution were added. 3D decor sheet after stirring for 1 hour at 1,000 RPM using a mechanical stirrer and dissolver at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking ultraviolet rays to prevent photocuring from the light source A UV coating agent was prepared.

In addition to using the coating composition of Example 9, production of a high elongation film was the same as in Example 1.

[Comparative Example 7]

Isobornyl Acrylate, which is used as a diluent of the coating solution, is 56.5 parts by weight of the coating solution, and 1.0 parts by weight of Pentaerythritol Triacrylate is used in the coating solution, and Oligomer D is used to improve stain resistance and surface hardness. 18.8 parts by weight of the coating solution, 16.5 parts by weight of Oligomer E to improve the elongation, 16.5 parts by weight of the coating solution, TEGO Glide 410 (EVONIK), an additive used to improve the slip properties of the coating film surface, 1.0 parts by weight of the coating solution, bubbles in the coating solution 0.5 parts by weight of TEGO Airex 920 (EVONIK), an antifoaming agent for removing, in the coating solution, 2, 4, 6-trimethylbenzoyl-diphenyl-phos, which is a photoinitiator for initiating photocuring of the coating composition according to UV irradiation. Pin (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]) in the coating solution 3.7 parts by weight, hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) in the coating solution 1.0 parts by weight, hydroxy dimethyl acetophenone (Hydroxy dimethyl acetophenone[HP8]) is added to 1.0 part by weight of the coating solution to prevent photocuring from an external light source. To prevent photocuring from an external light source, it is mechanical at room temperature (23℃ ㅁ 3℃) for homogeneous mixing of the composition in a batch reactor capable of blocking UV After stirring for 1 hour at 1,000 RPM using a stirrer and a dissolver, a UV coating agent for 3D decor sheets was prepared.

In addition to using the coating composition of Comparative Example 7, the preparation of a high elongation film was the same as in Example 1.

The physical properties of the high-stretch film are shown in Tables 2-1 and 2-2, and Example 9 according to the oligomer A, B, C formulation, elongation 145.4%, pencil hardness H, adhesion classification 0, solvent resistance and stain resistance It shows a good state, but in Comparative Example 7, depending on the oligomers D and E are mixed, the elongation is significantly reduced to 99.0%, the pencil hardness is reduced by 3B, and the adhesiveness is Class 1, peeling occurs at the intersection of the cutting line, and fouling resistance. Resistance to medium mustard was low.

The elongation according to temperature was 152.1%, the highest elongation at 73℃, as shown in Fig. 4[A]. As shown in Fig. 4[B], there is no significant change in the elongation even when the cross-head speed is changed. It was confirmed that there was no change in the moldability according to.

In addition, in describing the present invention above, a high-elongation functional film having a specific shape, structure, and configuration has been mainly described with reference to the accompanying drawings, but the present invention is capable of various modifications, changes, and substitutions by those skilled in the art, and such modifications, Changes and substitutions should be construed as belonging to the scope of the present invention.

1: coating layer 2: substrate
3: nanoparticles

Claims (14)

The oligomer mixture for imparting functionality is 32.2 ~ 35.4 wt% in the coating solution, the monomer mixture is 49.1 ~ 51.4 wt% in the coating solution, the additive is 1.4 ~ 1.5 wt% in the coating solution, the photoinitiator is 5.6 ~ 6.0 wt% in the coating solution and surface-modified alumina It consists of 8.5 ~ 8.9 wt% of functional particles made of nanoparticles in the coating solution,
The oligomer mixture is a mixture of a difunctional urethane acrylate oligomer, a trifunctional urethane acrylate oligomer, and a difunctional urethane acrylate,
The monomer mixture is made of a mixture of isobornyl acrylate and pentaerythritol triacrylate,
The additive is a mixture of a slip agent and an antifoaming agent,
The photoinitiator is 2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), hydroxy cyclohexyl phenyl ketone (Hydroxy cyclohexyl phenyl ketone [CP4]) and , A coating liquid composition comprising a mixture of hydroxy dimethyl acetophenone [HP8]. The method of claim 1,
The coating solution composition is a monomer isobornyl acrylate (Isobornyl Acrylate) 48.1 wt% in the coating solution, pentaerythritol triacrylate (Pentaerythritol Triacrylate) 1.0 wt% in the coating solution,
14.2 wt% of difunctional urethane acrylate oligomer, trifunctional urethane acrylate 9.4 wt%, and 11.8 wt% of difunctional urethane acrylate,
0.9 wt% of the slip agent as an additive in the coating solution, 0.5 wt% of the antifoam agent in the coating solution,
2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), a photoinitiator, was added to 3.8 wt% in the coating solution, and hydroxy cyclohexyl phenyl ketone [ CP4]) in the coating solution, 0.9 wt%, and hydroxy dimethyl acetophenone (HP8]) in the coating solution, 0.9 wt%
A coating liquid composition comprising 8.5 wt% of functional particles comprising surface-modified alumina nanoparticles. materials;
A coating layer coated on an upper surface or a lower surface of the substrate, or both;
Is made of,

The coating liquid composition forming the coating layer
An oligomer mixture comprising a difunctional urethane acrylate oligomer, a trifunctional urethane acrylate, and a difunctional urethane acrylate,
A monomer mixture containing isobornyl acrylate and pentaerythritol triacrylate, and
Functional film using a coating liquid composition, characterized in that it comprises functional particles made of surface-modified alumina nanoparticles. The method of claim 3,
In the coating liquid composition
An additive including a slip agent and an antifoaming agent,
2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), hydroxy cyclohexyl phenyl ketone [CP4]), and hydroxy Functional film using a coating liquid composition, characterized in that it further comprises a photoinitiator containing dimethyl acetophenone (Hydroxy dimethyl acetophenone [HP8]). The method of claim 4,
The oligomer mixture is 32.2 ~ 35.4 wt% in the coating solution, the monomer mixture is 49.1 ~ 51.4 wt% in the coating solution, the additive is 1.4 ~ 1.5 wt% in the coating solution, the photoinitiator is 5.6 ~ 6.0 wt% in the coating solution and surface-modified alumina nanoparticles. Functional film using a coating liquid composition, characterized in that consisting of 8.5 to 8.9 wt% of the functional particles made of the coating liquid. The method of claim 4,
The coating layer is a monomer isobornyl acrylate (Isobornyl Acrylate) 48.1 wt% in the coating solution, pentaerythritol triacrylate (Pentaerythritol Triacrylate) 1.0 wt% in the coating solution,
14.2 wt% of difunctional urethane acrylate oligomer, trifunctional urethane acrylate 9.4 wt%, and 11.8 wt% of difunctional urethane acrylate,
0.9 wt% of the slip agent as an additive in the coating solution, 0.5 wt% of the antifoam agent in the coating solution,
2, 4, 6-trimethylbenzoyl-diphenyl-phosphine (2, 4, 6-Trimethylbenzoyl-dipenyl Phosphine [TPO]), a photoinitiator, was added to 3.8 wt% in the coating solution, and hydroxy cyclohexyl phenyl ketone [ CP4]) in the coating solution, 0.9 wt%, and hydroxy dimethyl acetophenone (HP8]) in the coating solution, 0.9 wt%
Functional film using a coating liquid composition, characterized in that consisting of 8.5 wt% of functional particles made of surface-modified alumina nanoparticles. The method of claim 3,
The above description
PET, PI, PEN, TAC, PE, PP, PMMA, PC, functional film using a coating composition, characterized in that any one of. The method of claim 3,
Functional film using a coating liquid composition, characterized in that the elongation of the coating layer is made of 90.4 ~ 299.6%. A wood processed product comprising the functional film according to any one of claims 3 to 8 Furniture product comprising the functional film according to any one of claims 3 to 8 Decorative product comprising the functional film according to any one of claims 3 to 8 Automobile decoration product comprising the functional film according to any one of claims 3 to 8 Panel product comprising the functional film according to any one of claims 3 to 8 delete

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