KR20140094260A

KR20140094260A - Metalic interior sheet with excellent exterior decoration and method of manufacturing the same

Info

Publication number: KR20140094260A
Application number: KR1020130006852A
Authority: KR
Inventors: 조한준; 남재광; 이민호
Original assignee: (주)엘지하우시스
Priority date: 2013-01-22
Filing date: 2013-01-22
Publication date: 2014-07-30

Abstract

Instead of a heavy and difficult-to-handle glass, a polymer sheet of transparent material is used to provide a three-dimensional, metallic-like interior sheet having a metal-like appearance effect and a method of manufacturing the same.
The interior sheet according to the present invention includes a polymer film; A UV cured coating layer formed on one surface of the polymer film; A metal deposition layer formed on the polymer film and the UV cured coating layer; And a printing layer formed on the metal vapor deposition layer.

Description

TECHNICAL FIELD [0001] The present invention relates to an interior sheet having a metallic texture excellent in appearance decoration effect and a method of manufacturing the interior sheet.

The present invention relates to an interior sheet and a method of manufacturing the same. More specifically, the present invention relates to an interior sheet made of a transparent material, .

BACKGROUND ART [0002] Generally, back-side printed plate glass is used to give transparency and high surface hardness in household appliances such as refrigerators and air conditioners, architectural furnishings such as closets, and furniture.

Such a flaky glass is obtained by adding a dull pattern to the back surface of a glass. Silk screen printing is usually performed on the back surface of the glass, or an interior film is attached to realize a pattern. In addition, metal deposition may be separately performed on the print layer to add the metallic color.

On the other hand, such a glass product has a surface hardness of 7 to 8H and maintains high hardness and excellent scratch resistance. However, such conventional glass products are disadvantageous in that they are heavy in weight. In addition, there is a high risk of breakage during transportation due to weak external impact, and it is difficult to cut into a desired shape due to the characteristics of the glass material, and thus the workability is deteriorated.

Among these glass-use interior products, there are two types of products having three-dimensional patterns and metallic colors. A method of depositing a metal after forming a fine pattern coating layer with a thermosetting resin directly on the glass and a method of forming a UV pattern layer on a PET-based transparent polymer film and then adhering a film made by depositing a metal on the glass . The method of depositing a metal directly after forming a three-dimensional patterned layer on a glass is excellent in appearance and not only lowers the production efficiency during various post-processes, but also causes high manufacturing costs because of high breakage and defective ratio. Moreover, it is difficult to apply to various sizes of products since it is impossible to cut after completion.

In addition, in the method of depositing a three-dimensional pattern layer on a film and depositing the film, a transparent adhesive layer is inserted between the glass and the film, which deteriorates appearance effects such as three-dimensional effects due to changes in light transmittance and refractive index.

Korean Patent No. 10-0847342 (published on July 21, 2008) discloses a decorative sheet, a decorative glass using the decorative sheet, and a manufacturing method thereof.

It is an object of the present invention to provide an interior sheet of metal texture which is excellent in stereoscopic effect due to transparency unique to glass and which is light in weight, excellent in handling and processability, and excellent in decorative effect on appearance.

An object of the present invention is to provide an interior sheet of a metal texture which is excellent in handling and workability and can be rolled in a roll form and is worked in a sheet form to thereby provide a metal- Method.

According to an aspect of the present invention, there is provided an interior sheet comprising: a polymer film; A UV cured coating layer formed on one surface of the polymer film; A metal deposition layer formed on the polymer film and the UV cured coating layer; And a printing layer formed on the metal vapor deposition layer.

According to another aspect of the present invention, there is provided a method of manufacturing an interior sheet, comprising: (a) applying a UV curable polymer resin on one side of a polymer film and curing the UV curable polymer resin to form a UV curable coating layer; (b) depositing a metal on the lower surface of the polymer film having the UV cured coating layer to form a metal deposition layer; And (c) forming a print layer on the metal deposition layer.

The present invention can produce an interior sheet having a three-dimensional and metal-like appearance effect by using a polymer sheet of a transparent material in place of a heavy and difficult-to-handle glass. The interior sheet thus produced can be used as furniture, .

In addition, the present invention has transparency unique to glass, which not only has excellent stereoscopic effect but also light weight, excellent handling and processability and can be rolled in a roll form, thereby allowing work to be performed in a sheet form, An inexpensive interior sheet can be manufactured.

Therefore, the interior sheet and the manufacturing method thereof according to the present invention have advantages similar to those of using glass, and are advantageous in that they can be easily installed by using an adhesive since they are considerably lightweight compared to glass products which are fixed by a frame or made of silicone .

1 is a sectional view showing an interior sheet according to an embodiment of the present invention.
2 is a cross-sectional view illustrating an interior sheet according to another embodiment of the present invention.
3 is a process flow chart showing a method of manufacturing an interior sheet according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

1 is a sectional view showing an interior sheet according to an embodiment of the present invention.

Referring to FIG. 1, an interior sheet 100 according to an embodiment of the present invention includes a polymer film 110, a UV curing coating layer 120, a metal deposition layer 130, and a printing layer 140.

The polymer film 110 may be selected from polycarbonate, polyethylene terephthalate (PET), and acryl. Particularly, it is preferable to use a polycarbonate material as the polymer film 110 because the density of the polycarbonate is less than half of the glass, so that the weight of the polycarbonate is reduced by 30% or more compared to the glass having the same thickness. In addition, the polycarbonate not only has a light transmittance similar to that of glass, but also has excellent impact resistance and is highly usable as a glass substitute material.

At this time, the polymer film 110 preferably has a thickness of 180 to 500 mu m. When the thickness of the polymer film 110 is less than 180 占 퐉, it is advantageous in securing light transmittance but it may be difficult to secure impact resistance. On the contrary, when the thickness of the polymer film 110 is more than 500 μm, the impact resistance increases, but the light transmittance is rapidly lowered and the thickness of the entire interior sheet 100 is increased There is a problem that the moldability is rapidly lowered.

The UV cured coating layer 120 is formed on one side surface of the polymer film 110. The UV cured coating layer 120 may include 85 to 95% by weight of an oligomer acrylate and 5 to 15% by weight of a photoinitiator, based on 100% by weight of the photopolymerizable resin. At this time, as the oligomer acrylate, at least one selected from urethane acrylate, urethane methacrylate, epoxy acrylate, epoxy methacrylate, ester acrylate, and ester methacrylate may be used.

The metal deposition layer 130 is formed on the polymer film 110 and the UV cured coating layer 120. At this time, the metal deposition layer 130 may be formed of at least one selected from aluminum (Al), stainless steel (SUS), nickel (Ni), and chromium (Cr) The metal deposition layer 130 may be formed using any one method selected from sputtering, thermal evaporation, and the like.

Particularly, in the present invention, since the metal deposition layer 130 is directly deposited on the polymer film 110 and the UV cured coating layer 120, not only the three-dimensional effect is excellent, but also the color distortion phenomenon is advantageously reduced.

At this time, it is preferable that the metal deposition layer 130 is formed with OD (optical density) of 0.6 to 2.0. When the OD of the metal layer 130 is 0.6 or less, it may be difficult to exhibit a sufficient metallic texture effect. On the contrary, when the OD of the metal layer 130 is more than 2.0, it is difficult to exhibit the inherent texture that can be secured through the UV cured coating layer 120, and the interlayer adhesion force of the interior sheet 100 is lowered There is a risk of deteriorating the product quality.

A printing layer 140 is formed on the metal deposition layer 130. The print layer 140 is partially printed on the upper surface of the metal deposition layer 130 to display various designs, characters, and trademarks in various colors. In particular, the printing layer 140 serves as a decoration layer using the metal bonding layer 130 as a background. At this time, the print layer 140 may be formed using a multi-color gravure printing machine, which is operated at a printing frequency determined by a multi-gravure printing rotary machine. At this time, the print layer 140 is preferably formed to have a thickness of 1 to 3 mu m.

The interior sheet according to an embodiment of the present invention is a three-dimensional and metal-like appearance effect using a polymer sheet of a transparent material instead of a heavy and difficult to handle glass, and is used as furniture, Suitable.

In addition, the interior sheet according to an embodiment of the present invention has transparency peculiar to the glass, so that it has excellent stereoscopic effect, and is lightweight, has excellent handling and workability and can be wound in a roll form. It is advantageous in productivity and in manufacturing cost.

Therefore, the interior sheet according to an embodiment of the present invention has a similar appearance effect as that of using glass, and can be easily installed using an adhesive because it is considerably lightweight as compared with a glass product which is fixed with a frame or must be made of silicone.

2 is a cross-sectional view illustrating an interior sheet according to another embodiment of the present invention. The interior sheet according to another embodiment of the present invention is substantially the same as the interior sheet according to an embodiment of the present invention, and a description thereof will be omitted.

Referring to FIG. 2, the interior sheet 100 according to another embodiment of the present invention includes a polymer film 110, a UV cured coating layer 120, a metal deposition layer 130, a print layer 140, (150). The polymer film 110, the UV curable coating layer 120, the metal vapor deposition layer 130 and the printing layer 140 according to another embodiment of the present invention may be formed using a polymer film, a UV curable coating layer, Layer and the printing layer, and redundant description will be omitted.

The hard coating layer 150 is formed on the other surface of the polymer film 110. At this time, the hard coat layer 150 is formed for the purpose of improving the antifouling property, impact resistance, scratch resistance, etc., and may be formed, for example, by a gravure coating technique.

At this time, the hard coat layer 150 may use at least one selected from an acrylic type, a urethane type, an epoxy type, and a siloxane type polymer material, and an ultraviolet curable resin such as an oligomer may be used. In addition, the hard coating layer 150 may further include a silica-based filler to improve the strength.

The hard coat layer 150 is preferably formed to a thickness of 1 to 10 탆. If the thickness of the hard coat layer 150 is less than 1 mu m, it may be difficult to exhibit the above effect properly. On the other hand, when the thickness of the hard coat layer 150 exceeds 10 mu m, there is a problem that the manufacturing cost increases compared to the effect increase, which is not economical.

The interior sheet according to another embodiment of the present invention is a three-dimensional and metal-like appearance effect using a polymer sheet of a transparent material in place of heavy and difficult to handle glass, and a hard coating layer is further formed on the polymer sheet Antifouling property, impact resistance, scratch resistance and the like can be improved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for manufacturing an interior sheet of a metal texture with excellent appearance decoration effect according to an embodiment of the present invention will be described with reference to the accompanying drawings.

3 is a process flow diagram illustrating an interior sheet manufacturing method according to an embodiment of the present invention.

Referring to FIG. 3, an interior sheet manufacturing method according to an embodiment of the present invention includes a UV curing coating layer forming step S210, a metal deposition layer forming step S220, and a printing layer forming step S230.

UV curing coating layer formation

In the UV cured coating layer forming step S210, a UV curable polymer resin is applied to one surface of the polymer film and cured to form a UV cured coating layer.

In this step, the UV curable polymer resin comprises 85 to 95% by weight of oligomer acrylate and 5 to 15% by weight of photoinitiator, based on 100% by weight of the photocurable resin. At this time, as the oligomer acrylate, at least one selected from urethane acrylate, urethane methacrylate, epoxy acrylate, epoxy methacrylate, ester acrylate, and ester methacrylate may be used.

The UV curable polymer resin may further comprise 10 to 30 parts by weight of an organic solvent per 100 parts by weight of the photocurable resin. As the organic solvent, for example, propyl alcohol may be used. At this time, if the content of the organic solvent is less than 10 parts by weight, the fluidity is drastically lowered, and it may be difficult to coat the polymer film with a uniform thickness. On the other hand, if the content of the organic solvent is more than 30 parts by weight, the fluidity may be excessively increased, and the polymer may not be coated on the polymer film and flow down.

Metal deposition layer formation

In the metal deposition layer formation step S220, a metal deposition layer is formed by depositing a metal on the lower surface of the polymer film having the UV curing pattern layer formed thereon. At this time, the metal deposition layer may be formed of at least one selected from aluminum (Al), stainless steel (SUS), nickel (Ni) and chromium (Cr) The metal deposition layer may be formed by using any one method selected from sputtering, thermal evaporation, and the like.

In this case, since the metal deposition layer is directly deposited on the polymer film and the UV cured coating layer, the present invention is advantageous in not only the stereoscopic effect but also the color distortion phenomenon can be reduced.

It is preferable that the metal deposition layer has an OD (optical density) of 0.6 to 2.0. When the OD of the metal layer 130 is 0.6 or less, it may be difficult to exhibit a sufficient metallic texture effect. On the contrary, when the OD of the metal layer 130 is more than 2.0, it is difficult to exhibit the inherent texture that can be secured through the UV cured coating layer 120, and the interlayer adhesion force of the interior sheet 100 is lowered There is a risk of deteriorating the product quality.

Printing layer formation

In the print layer forming step S230, a print layer is formed on the metal vapor deposition layer. At this time, the print layer is partially printed on the upper surface of the metal deposition layer to display various designs, characters, and trademarks in various colors. In particular, the printing layer serves as a decoration layer using a metal bonding layer as a background.

In this step, the print layer may be formed using a multi-color gravure printing machine, which is operated at a printing frequency determined by a multi-gravure printing press. At this time, the printed layer is preferably formed to have a thickness of 1 to 3 mu m.

The interior sheets manufactured in the above steps S210 to S230 are three-dimensional and have a metal-like appearance effect by using a polymer sheet of a transparent material in place of heavy and difficult to handle glass, and are used as furniture, home electric appliance materials, Suitable.

In addition, the interior sheet produced by the above-mentioned method has transparency peculiar to glass, so that it is not only excellent in three-dimensional effect but also light in weight and excellent in handling and workability, and can be rolled into a roll shape. Therefore, there is an advantage in that productivity is good and manufacturing cost is low.

Therefore, the interior sheet manufactured by the method according to the embodiment of the present invention has a similar appearance effect as that of using glass, and is relatively light in weight compared to a glass product which must be fixed by a frame or made of silicone. Therefore, .

Meanwhile, although not shown in the drawings, the method of manufacturing an interior sheet according to an embodiment of the present invention may further include a hard coating layer forming step performed after the printing layer forming step.

In the hard coating layer forming step, a hard coating composition is applied to the other surface of the polymer film by a gravure coating method and dried to form a hard coating layer. At this time, the hard coat layer is formed for the purpose of improving antifouling property, impact resistance, scratch resistance and the like.

Such a hard coating layer may use at least one selected from acrylic, urethane, epoxy, and siloxane polymer materials, and an ultraviolet curable resin such as an oligomer may be used. In addition, the hard coating layer may further include a silica-based filler to improve the strength. At this time, the hard coat layer is preferably formed to a thickness of 1 to 10 mu m. If the thickness of the hard coat layer is less than 1 mu m, it may be difficult to exhibit the above effect properly. On the contrary, when the thickness of the hard coating layer exceeds 10 탆, there is a problem that the manufacturing cost increases compared to the effect increase, which is not economical.

As described above, when a hard coating layer is further formed after the printing layer forming step, a polymer sheet of a transparent material is used instead of a heavy and difficult-to-handle glass to have a three-dimensional appearance and a metal-like appearance effect, , Scratch resistance and the like can be improved.

Example

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.

The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.

1. Specimen Manufacturing

Example 1

A UV curable polymer resin was imprinted on one surface of a polycarbonate sheet having a thickness of 250 mu m to a thickness of 20 mu m and cured at 400 mJ to form a UV curing embo layer. Thereafter, aluminum (Al) was deposited on the polycarbonate film and the UV cured coating layer by the thermal evaporation method. 1.0.

Thereafter, a printing layer was formed to a thickness of 2 mu m using a gravure printing rotary machine to produce an interior sheet.

Example 2

An interior sheet was produced in the same manner as in Example 1, except that a PET (polyethylene terephthalate) sheet was used in place of the polycarbonate sheet.

Example 3

An interior sheet was prepared in the same manner as in Example 1, except that an acryl sheet was used in place of the polycarbonate sheet.

Example 4

A UV curable polymer resin was imprinted on one side of a polycarbonate sheet having a thickness of 250 mu m to a thickness of 20 mu m and cured at 400 mJ to form a UV curing embo layer. Thereafter, aluminum (Al) was deposited on the polycarbonate film and the UV cured coating layer by the thermal evaporation method. 1.0.

Thereafter, a printing layer was formed to a thickness of 2 mu m using a gravure printing rotary machine, and then an epoxy polymer was applied to the other surface of the polycarbonate sheet to a thickness of 7 mu m and cured at 50 DEG C for 1 hour to form a hard coating layer To prepare an interior sheet.

Comparative Example 1

A UV curable polymer resin was imprinted on one side of a polyethylene terephthalate (PET) sheet having a thickness of 250 mu m to a thickness of 15 mu m and cured at 400 mJ to form a UV curing embo layer. Thereafter, aluminum (Al) was deposited on the polycarbonate film and the UV cured coating layer by the thermal evaporation method. 0.1.

Thereafter, an ester-based adhesive was applied to a thickness of 3 탆, dried at 100 캜, and then adhered to a PVC (polyvinyl chloride) film. Thereafter, an ester-based adhesive was applied to the other surface of the PET (polyethylene terephthalate) sheet to a thickness of 5 탆, dried at 100 캜, and then 0.5 mm thick glass (Gorilla Glass, Corning) was adhered to produce an interior sheet.

Comparative Example 2

A UV curable polymer resin was imprinted on one side of 1 mm thick glass (Gorilla Glass, Corning) to a thickness of 20 탆 and cured at 400 mJ to form a UV curing embo layer. Thereafter, aluminum (Al) was deposited on the polycarbonate film and the UV cured coating layer by the thermal evaporation method. 1.5.

Thereafter, an ester-based adhesive was applied to a thickness of 3 탆, dried at 100 캜, and then adhered to a PVC (polyvinyl chloride) film to prepare an interior sheet.

2. Property evaluation

Table 1 shows the results of physical properties of the specimens according to Examples 1 to 4 and Comparative Examples 1 and 2.

(1) Transmittance (%) and haze: Hazemeter was measured according to ASTM D1003 method.

(3) Flexural modulus (MPa): Measured according to the ASTM D790 method.

(4) Surface pencil hardness: Measured according to ASTM D3363 method at a load of 1 kg.

(5) Impact resistance: The Izod impact strength was measured in accordance with ASTM D785.

Measurement temperature: 0 占 폚, Specimen: 12.7 (width) 占 4 (length) 占 3.2mm (thickness)

?: Measured value of 151 to 170 J / m, O: measured value of 141 to 150 J / m,?: Measured value of 121 to 140 J /

[Table 1]

Referring to Table 1, in the case of the specimens according to Examples 1 to 4, the flexural modulus is low but the transmittance, turbidity, and surface pencil hardness are comparable to those of the specimens according to Comparative Examples 1 and 2 Quot; value ".

Particularly, the specimens according to Examples 1 to 4 are superior in impact resistance to the specimens according to Comparative Examples 1 and 2.

As can be seen from the above experimental results, the specimens according to Examples 1 to 4 were found to have the same level of impact resistance and transmittance as compared with the specimens according to Comparative Examples 1 and 2 .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Accordingly, the true scope of the present invention should be determined by the following claims.

100: Interior sheet 110: Polymer film
120: UV cured coating layer 130: metal deposition layer
140: print layer 150: hard coat layer
S210: UV curing pattern layer forming step
S220: Metal deposition layer formation step
S230: print layer forming step

Claims

Polymer films;
A UV cured coating layer formed on one surface of the polymer film;
A metal deposition layer formed on the polymer film and the UV cured coating layer; And
And a printed layer formed on the metal vapor deposition layer.

The method according to claim 1,
The polymer film
Characterized in that it comprises one selected from the group consisting of polycarbonate, polyethylene terephthalate (PET) and acryl.

3. The method of claim 2,
The polymer film
And has a thickness of 180 to 500 mu m.

The method according to claim 1,
The metal deposition layer
Wherein the inner sheet is formed of at least one selected from aluminum (Al), stainless steel (SUS), nickel (Ni), and chromium (Cr).

5. The method of claim 4,
The metal deposition layer
And an OD (optical density) of 0.6 to 2.0.

The method according to claim 1,
The UV cured coating layer
85 to 95% by weight of an oligomer acrylate and 5 to 15% by weight of a photoinitiator, based on 100% by weight of the photocurable resin.

The method according to claim 6,
The oligomer acrylate
And at least one selected from urethane acrylate, urethane acrylate, urethane acrylate, urethane methacrylate, epoxy acrylate, epoxy methacrylate, ester acrylate and ester methacrylate.

The method according to claim 1,
The interior sheet
And a hard coating layer formed on the other surface of the polymeric film layer.

(a) applying a UV curable polymer resin on one side surface of a polymer film and curing the UV curable polymer resin to form a UV curable coating layer;
(b) depositing a metal on the lower surface of the polymer film having the UV cured coating layer to form a metal deposition layer; And
(c) forming a printing layer on the metal deposition layer.

10. The method of claim 9,
In the step (a)
The polymer film
Wherein one selected from the group consisting of polycarbonate, polyethylene terephthalate (PET) and acryl is used.

10. The method of claim 9,
In the step (a)
The UV curable polymer resin
Wherein the photoinitiator comprises 85 to 95% by weight of oligomer acrylate and 5 to 15% by weight of photoinitiator based on 100% by weight of the photo-curing resin.

12. The method of claim 11,
The UV cured polymer resin
Further comprising 10 to 30 parts by weight of an organic solvent based on 100 parts by weight of the photocurable resin.

10. The method of claim 9,
The metal deposition layer
A sputtering method or a thermal evaporation deposition method is used.

10. The method of claim 9,
After the step (c)
(d) applying a hard coating composition to the other surface of the polymer film and drying the resultant to form a hard coating layer.