KR101471902B1 - Complex sheet with metallic appearance, product with metallic appearance and method for manufacturing the same - Google Patents

Abstract

The present invention relates to a composite sheet having a metal texture and a method for producing the same. The composite sheet having the metal texture includes a resin layer; A metal thin film layer on the resin layer; An oxide layer on the metal thin film layer; An adhesive layer on the oxide layer; A printing layer printed on the adhesive layer by digital printing; .
According to this configuration, the metal thin film layer is attached on the resin layer, the oxide layer and the adhesive layer are sequentially coated on the metal thin film layer, and the printed layer printed thereon by the digital printing method is positioned. It is possible to provide a composite sheet having a metal texture which can realize various colors and at the same time a printing time and effort and a product price can be greatly reduced, a product having a metal texture, and a manufacturing method thereof.

Description

TECHNICAL FIELD [0001] The present invention relates to a composite sheet having a metal texture, a product having a metal texture and a method of manufacturing the composite sheet,

The present invention relates to a composite sheet having a metal texture, a product having a metal texture, and a manufacturing method thereof.

Generally, synthetic resin is used to decorate living space beautifully. It can be used for finishing materials such as window, furniture, doors and the like because it can exhibit various decoration effects with excellent durability.

Conventional synthetic resin is advantageous because it can be processed in various forms at low cost. However, even if the feeling of coming from the material is simple and various colors are expressed, the tiredness of color is easily felt, And it was not enough to meet the desire of consumers who prefer more luxurious products.

In order to solve these disadvantages, there has been a method of producing a synthetic resin film in which metal particles or pearl particles are evenly dispersed so as to have a metal texture that can give a cool and stylish impression, and then plywood with a synthetic resin base. However, this method has been limited in the kinds of synthetic resin films, and it has been difficult to satisfy the needs of various consumers.

To overcome these drawbacks, there was a method of embodying various colors by using a "silk screen" method on a plastic fabric to express the color of a different material to a plastic material. However, in this case, the plate for the silk screen must be manufactured in various sizes according to the product size, and the color itself can not maintain the uniform characteristics continuously, and periodic coloring work is required.

In order to achieve gradation effect or two or more colors in plastic materials, a layer is formed by a plate for silk screen, and after drying it, a silk screen is used to express the color of the first color again, There is a problem that a lot of time and manpower must be input. Also, when using the silk screen method, a lot of time and personnel must be input even for small design changes.

Korean Patent Application No. 10-2005-0081718

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a composite sheet having a metal texture capable of expressing various colors and designs with less time and effort in order to realize a metal texture in raw materials such as plastic, glass, And a method of manufacturing the same.

According to an aspect of the present invention, a composite sheet having a metal texture includes a resin layer; A metal thin film layer on the resin layer; An oxide layer on the metal thin film layer; An adhesive layer on the oxide layer; A printing layer printed on the adhesive layer by digital printing; .

According to another aspect of the present invention, there is provided a composite sheet having a metal texture, including: a resin layer; A metal thin film layer on the resin layer; An oxide layer on the metal thin film layer; An adhesive layer below the resin layer; A printing layer printed under the adhesive layer by digital printing; .

According to another aspect of the present invention for achieving the above object, a product having a metal texture is selected from the group consisting of resin, glass, ceramic or tile; A metal thin film layer on the raw material; An oxide layer on the metal thin film layer; An adhesive layer on the oxide layer; A printing layer printed on the adhesive layer by digital printing; .

Also, the metal thin film layer includes a functional nanomaterial.

Also, the functional nanomaterial is included in the print layer.

In addition, UV ink is contained in the printing layer.

The metal thin film layer has a thickness of 0.1 to 0.6 탆 and a light transmittance of 10 to 50%, and the oxide layer has a thickness of 0.05 to 0.3 탆 and a light transmittance of 10 to 50%.

According to another aspect of the present invention, there is provided a method of manufacturing a composite sheet having a metal texture, the method including: providing a resin layer; Attaching a metal thin film layer on the resin layer; Applying an oxide layer on the metal thin film layer; Applying an adhesive layer on the oxide layer; Printing a print layer on the adhesive layer by a digital printing method; .

According to another aspect of the present invention, there is provided a method of manufacturing a composite sheet having a metal texture, the method including: providing a resin layer; Attaching a metal thin film layer on the resin layer; Applying an oxide layer on the metal thin film layer; Applying the adhesive layer on the resin layer on the opposite side by reversing the resin layer; Printing a print layer on the adhesive layer by a digital printing method; .

According to another aspect of the present invention, there is provided a method of manufacturing a product having a metal texture, comprising: preparing a raw material selected from the group consisting of resin, glass, ceramic, or tile; Attaching a metal thin film layer on the raw material; Applying an oxide layer on the metal thin film layer; Applying an adhesive layer on the oxide layer; Printing a print layer on the adhesive layer by a digital printing method; .

In addition, solvent-based ink or UV ink may be selectively used in the printing step.

According to the present invention, a metal thin film layer is attached on a resin layer, an oxide layer and an adhesive layer are sequentially coated on the metal thin film layer, and a printing layer printed thereon by a digital printing method is placed thereon. It is possible to provide a composite sheet having a metal texture which can realize various colors and at the same time a printing time, effort, and a product price can be greatly reduced, a product having a metal texture, and a manufacturing method thereof.

1 is a view showing a composite sheet having a metal texture according to an embodiment of the present invention.
2 is a view showing a composite sheet having a metal texture according to another embodiment of the present invention.
3 is a view showing a product having a metal texture according to another embodiment of the present invention.
4 is a view illustrating a method of manufacturing a composite sheet having a metal texture according to an embodiment of the present invention.
5 is a view illustrating a method of manufacturing a composite sheet having a metal texture according to another embodiment of the present invention.
6 is a view showing a method of manufacturing a product having a metal texture according to another embodiment of the present invention.
FIG. 7A shows a result of appearance test of a composite sheet having a metal texture according to an embodiment of the present invention.
FIG. 7B shows a cross-cut test result of a composite sheet having a metal texture according to an embodiment of the present invention.
FIG. 7C shows a result of reliability test of the composite sheet having the metal texture according to the embodiment of the present invention under various conditions.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

1 is a view showing a composite sheet having a metal texture according to an embodiment of the present invention.

The composite sheet (hereinafter referred to as a composite sheet) 100 having a metal texture includes a resin layer 110, a metal thin film layer 120, an oxide layer 130, an adhesive layer 140, and a print layer 150.

The resin layer 110 may include resins such as PC, PMMA, PET and acrylic. The resin layer 110 becomes a raw material for expressing the metal texture. The resin layer 110 may be formed of a combination of layers such as a stripe layer 111, a transparent sheet layer 112, and a coating layer 113. The thickness of the resin layer 110 may be 0.2 to 0.5 mm.

The metal thin film layer 120 is located on the resin layer 110. The metal thin film layer 120 may be positioned on the resin layer 110 by vapor deposition such as sputtering, electron beam (E-beam), evaporation, or the like. Examples of the metal deposited on the metal thin film layer 120 include Ni, Cr, Al, Sn, Cu, Ti, and STS. The metal thin film layer 120 improves the depth of the image, the three-dimensional effect and the aesthetics by the irregular reflection effect of light. Additional functionality may be achieved by adding functional nanomaterials to the metal deposited on the resin layer 110. For example, nanoparticles such as silver, copper, and gold may be added to the metal deposited on the resin layer 110 to implement additional functions such as electromagnetic shielding, anion emission, sterilization, and the like. The thickness of the metal thin film layer 120 may be 0.1 to 0.6 mu m.

The light transmittance of the metal thin film layer 120 can be adjusted as needed. For example, the metal thin film layer 120 may have a light transmittance of 10 to 50%.

An oxide layer 130 is located on the metal thin film layer 120. The oxide layer 130 may be placed on the metal foil layer 120 by application. The oxide layer 130 may be made of SiO ₂ , Al ₂ O ₃ , TiO _2, or the like. The thickness of the oxide layer 130 may be 0.05 to 0.3 탆. The oxide layer 130 may have a light transmittance of 10 to 50%.

An adhesive layer 140 is disposed on the oxide layer 130. The adhesive layer 140 may be placed on the oxide layer 130 by application. The adhesive layer 140 facilitates bonding between the oxide layer 130 under the adhesive layer 140 and the print layer 150 printed on the adhesive layer 140. The adhesive layer 140 may be formed of a rubber adhesive, an acrylic adhesive, a chloroprene adhesive, an epoxy resin adhesive, an epoxy adhesive, a cyanoacrylate adhesive, a silicone rubber adhesive, a styrene block copolymer (SBC) adhesive, . ≪ / RTI > The adhesive layer 140 may further include an adhesion auxiliary agent such as an ester rubber, a rosin-based resin, or a phenol resin. The adhesive layer 140 may further include plasticizers such as phthalic acid ester, castor oil, and low molecular weight polyisobutylene. Without the adhesive layer 140, adhesion of the printed layer 150 printed by the digital printing method becomes difficult. The thickness of the adhesive layer 140 may be 10 to 30 占 퐉.

A printing layer 150 is located on the adhesive layer 140. The print layer 150 is printed by a digital printing method.

The digital printing method improves the existing method of realizing a simple color on the surface of a plastic material by the silk screen method, realizes a more realistic metal texture, and has various color effects which can not be expressed by the color of the actual metal itself, , And gradation effects.

In the silk screen method, in order to realize the gradation effect or two or more colors, a layer is formed by a plate for a silk screen, and a repeated operation of expressing and drying the first layer with a silk screen . In addition, since the solvent-based ink is used in the silk screen method, drying of the ink takes a long time.

As described above, in order to realize the design desired by the customer through the silk screen method, more time and effort are required, and there is a fundamental limitation in satisfying the quality level desired by the customer in the final product. In addition, when the silk screen method is used, basic control factors such as an increase in the number of preparation plates due to an increase in the surface coating frequency and a coloring operation to achieve a uniform color are increased, Lt; / RTI >

However, in the digital printing method, it is possible to complete the surface coating work which has been performed in various stages in a single operation, and it is not necessary to produce an additional plate.

In addition, in the digital printing method, both solvent-based ink and UV ink can be used. At this time, the viscosity of the ink used may be 9 to 15 cP. UV inks have the advantage of quick drying, but these UV inks can not be used in silkscreen printing. This digital printing method can realize many colors compared with the silk screen method, and even if many colors are implemented, it can be dried and dried at a time, which can greatly reduce the time and effort required for printing.

Additional functionality can be achieved by adding functional nanomaterials to inks for digital printing. For example, nanomaterials such as silver, copper, and gold may be added to the ink to realize functions such as, for example, electromagnetic wave shielding.

In digital printing, digital design such as gradation, full color, and the like can be realized based on digitized files.

The print layer 150 may be printed, for example, by inkjet printing equipment. The thickness of the print layer 150 may be 30 to 60 占 퐉.

A double-sided tape 160 may be attached on the print layer 150. The double-sided tape 160 may be adhered to the bottom of the resin layer 110. The double-sided tape 160 makes it possible to attach the composite sheet 100 of the present invention to an electronic product or the like.

According to the composite sheet 100 described above, the metal thin film layer 120 is deposited on the resin layer 110, the oxide layer 130 and the adhesive layer 140 are sequentially coated on the metal thin film layer 120, The composite sheet 100 having a metal texture that can realize various colors by digital printing while having a sense of beauty due to the metal texture and greatly reducing the printing time, .

2 is a view showing a composite sheet having a metal texture according to another embodiment of the present invention.

The composite sheet 200 includes a resin layer 210, a metal thin film layer 220, an oxide layer 230, an adhesive layer 240, and a print layer 250. The composite sheet 200 of this embodiment has the same configuration as the embodiment shown in Fig. 1 except for the positions of the adhesive layer 240 and the print layer 250. Fig.

The adhesive layer 240 is located below the resin layer 110. The adhesive layer 240 may be positioned under the resin layer 110 by application. The adhesive layer 240 facilitates bonding of the resin layer 210 and the print layer 250. Without the adhesive layer 240, adhesion of the printed layer 250 printed by the digital printing method becomes difficult. The thickness of the adhesive layer 240 may be 10 to 30 占 퐉.

Below the adhesive layer 240 is a printed layer 250. The print layer 250 is printed by the digital printing method as described above.

On the oxide layer 230, a double-sided tape 260 may be attached. The double-sided tape 260 may be attached under the print layer 250. The double-sided tape 260 makes it possible to attach the composite sheet 200 of the present invention to an electronic product or the like.

According to the composite sheet 200 described above, the metal thin film layer 220 and the oxide layer 230 are attached on the resin layer 210 and the adhesive layer 240 and the print layer 250 are positioned below the resin layer 210 It is possible to provide a composite sheet 200 having a metallic texture that can realize various colors by digital printing while having a sense of beauty due to the metal texture and can greatly reduce printing time, effort, and product cost.

3 is a view showing a product having a metal texture according to another embodiment of the present invention.

The product 300 having the metal texture includes a raw material 310, a metal thin film layer 320, an oxidation layer 330, an adhesive layer 340, and a print layer 350.

The raw material 310 may be resin, glass, ceramic, tile, or the like. Different layers may be positioned to represent the metal texture on the raw material 310 to provide a different feel to the texture of the raw material 310.

On the raw material 310, a metal thin film layer 320, an oxide layer 330, an adhesive layer 340, and a print layer 350 are sequentially placed. The metal thin film layer 320, the oxide layer 330, the adhesive layer 340 and the print layer 350 are formed on the metal thin film layer 120, the oxide layer 130, the adhesive layer 140, the print layer 150, They have substantially the same configuration.

According to the above-described product 300, a metal thin film layer 320 is deposited on a raw material 310, an oxide layer 330 and an adhesive layer 340 are sequentially coated on the metal thin film layer 320, and a printing layer 350), it is possible to provide a product 300 having a metal texture that can realize various colors by digital printing while having a sense of beauty due to the metal texture, and can greatly reduce printing time, effort, and product cost have.

4 is a view illustrating a method of manufacturing a composite sheet having a metal texture according to an embodiment of the present invention.

Referring to FIGS. 1 and 4, first, a resin layer 110 is provided (S110). The resin layer 110 may include resins such as PC, PMMA, PET and acrylic. The thickness of the resin layer 110 may be 0.2 to 0.5 mm.

Next, the metal thin film layer 120 is attached on the resin layer 110 (S120). The metal thin film layer 120 may be deposited on the resin layer 110 by, for example, vapor deposition such as sputtering, electron beam, evaporation, or the like. Examples of the metal to be deposited on the metal thin film layer 120 include Ni, Cr, Al, Sn, and Ti. Additional functionality may be achieved by adding functional nanomaterials to the metal deposited on the resin layer 110. For example, nanoparticles such as silver, copper, and gold may be added to the metal deposited on the resin layer 110 to implement additional functions such as electromagnetic shielding. The thickness of the metal thin film layer 120 may be 0.1 to 0.6 mu m. The metal thin film layer 120 may have a light transmittance of 10 to 50%.

Next, the oxide layer 130 is coated on the metal thin film layer 120 (S130). The oxide layer 130 may be made of SiO ₂ , Al ₂ O ₃ , TiO _2, or the like. The thickness of the oxide layer 130 may be 0.05 to 0.3 탆. The oxide layer 130 may have a light transmittance of 10 to 50%.

Next, the adhesive layer 140 is coated on the oxide layer 130 (S140). The adhesive layer 140 facilitates bonding between the oxide layer 130 under the adhesive layer 140 and the print layer 150 printed on the adhesive layer 140. Without the adhesive layer 140, adhesion of the printed layer 150 printed by the digital printing method becomes difficult. The thickness of the adhesive layer 140 may be 10 to 30 占 퐉.

Next, the print layer 150 is printed on the adhesive layer 140 by a digital printing method (S150). In the printing step, a solvent-based ink or a UV ink may be selectively used. At this time, functional nanomaterials can be added to the ink for digital printing to realize additional functions. For example, nanomaterials such as silver, copper, and gold may be added to the ink to realize functions such as, for example, electromagnetic wave shielding.

In the composite sheet 100 manufactured in this way, the double-sided tape 160 is stuck on the print layer 150, or the double-sided tape 160 is stuck under the resin layer 110 to bond the composite sheet 100 to the electronic product Can be attached.

5 is a view illustrating a method of manufacturing a composite sheet having a metal texture according to another embodiment of the present invention.

Referring to FIGS. 2 and 5, first, a resin layer 210 is provided (S210). The resin layer 210 may include resins such as PC, PMMA, PET and acrylic. The thickness of the resin layer 110 may be 0.2 to 0.5 mm.

Next, the metal thin film layer 220 is attached on the resin layer 210 (S220). The metal thin film layer 220 may be deposited on the resin layer 210 by, for example, vapor deposition such as sputtering, electron beam (E-beam), evaporation, or the like. As the metal to be deposited on the metal thin film layer 220, there are Ni, Cr, Al, Sn, Ti and the like. Functional nanomaterials may be added to the metal deposited on the resin layer 210 to implement additional functions. For example, nanoparticles such as silver, copper, and gold may be added to the metal deposited on the resin layer 210 to realize additional functions such as electromagnetic shielding. The thickness of the metal thin film layer 220 may be 0.1 to 0.6 mu m. The metal thin film layer 220 may have a light transmittance of 10 to 50%.

Next, the oxide layer 230 is coated on the metal thin film layer 220 (S230). The oxide layer 230 may be made of SiO ₂ , Al ₂ O ₃ , TiO _2, or the like. The thickness of the oxide layer 230 may be 0.05 to 0.3 占 퐉. The oxide layer 230 may have a light transmittance of 10 to 50%.

Next, the resin layer 210 is turned over and the adhesive layer 240 is coated on the opposite resin layer 210 (S240). The adhesive layer 240 facilitates bonding of the resin layer 210 and the print layer 250. Without the adhesive layer 240, adhesion of the printed layer 250 printed by the digital printing method becomes difficult. The thickness of the adhesive layer 240 may be 10 to 30 占 퐉.

Next, the print layer 250 is printed on the adhesive layer 240 by a digital printing method (S250). In the printing step, a solvent-based ink or a UV ink may be selectively used. At this time, functional nanomaterials can be added to the ink for digital printing to realize additional functions. For example, nanomaterials such as silver, copper, and gold may be added to the ink to realize functions such as, for example, electromagnetic wave shielding.

In the composite sheet 200 manufactured in this manner, the composite sheet 200 is attached to the electronic product by attaching the double-faced tape 260 to the print layer 250 or attaching the double-faced tape 260 on the oxide layer 230 .

6 is a view showing a method of manufacturing a product having a metal texture according to another embodiment of the present invention.

Referring to FIGS. 3 and 6, first, a raw material 310 is prepared (S310). The raw material 310 may be resin, glass, ceramic, tile, or the like.

Next, the metal thin film layer 320 is attached on the raw material 310 (S320). The metal thin film layer 320 may be deposited on the resin layer 310 by, for example, vapor deposition such as sputtering, electron beam, evaporation, or the like. Examples of the metal to be deposited on the metal thin film layer 320 include Ni, Cr, Al, Sn, and Ti. Additional functionality can be achieved by adding a functional nanomaterial to the metal deposited on the raw material 310. For example, nanomaterials such as silver, copper, gold, etc. may be added to implement additional functions such as, for example, electromagnetic shielding. The thickness of the metal thin film layer 320 may be 0.1 to 0.6 mu m. The metal thin film layer 320 may have a light transmittance of 10 to 50%.

Next, the oxide layer 330 is coated on the metal thin film layer 320 (S330). The oxide layer 330 may be formed of SiO ₂ , Al ₂ O ₃ , TiO _2, or the like. The thickness of the oxide layer 330 may be 0.05 to 0.3 占 퐉. The oxide layer 330 may have a light transmittance of 10 to 50%.

Next, the adhesive layer 340 is coated on the oxide layer 330 (S340). The adhesive layer 340 facilitates bonding between the oxide layer 330 under the adhesive layer 340 and the print layer 350 printed on the adhesive layer 340. Without the adhesive layer 340, adhesion of the printed layer 350 printed by the digital printing method becomes difficult. The thickness of the adhesive layer 340 may be 10 to 30 占 퐉.

Next, the print layer 350 is printed on the adhesive layer 340 by a digital printing method (S350). In the printing step, a solvent-based ink or a UV ink may be selectively used. At this time, functional nanomaterials can be added to the ink for digital printing to realize additional functions. For example, nanomaterials such as silver, copper, and gold may be added to the ink to realize functions such as, for example, electromagnetic wave shielding.

According to the above-described method, since the print layers printed on the resin layers 110 and 210 and the raw material 310 by the digital printing method are located in various layers for displaying the metal texture, It is possible to provide the composite sheet 100, 200 or the product 300 having a metal texture that can be implemented in various colors and at the same time, the printing time, effort, and product cost can be greatly reduced.

The following is a test result of a composite sheet (including a product) having a metal texture according to an embodiment of the present invention. FIG. 7A shows a result of appearance test of a composite sheet having a metal texture according to an embodiment of the present invention. FIG. 7B shows a cross-cut test result of a composite sheet having a metal texture according to an embodiment of the present invention. FIG. 7C shows a result of reliability test of the composite sheet having the metal texture according to the embodiment of the present invention under various conditions.

Exterior

In Fig. 7A, the two samples show the state where the protective film is attached, and the lower two samples show that the protective film is removed. The surface of the composite sheet should be free of apparent defects such as bubbles, scratches, foreign matter, discoloration, and stains. Under the lighting of fluorescent lamps, the visibility shall be 400 ~ 500 Lux and 45 ~ 50cm distance.

As a result of the inspection, there were no apparent defects such as bubbles, scratches, foreign matter, discoloration, and unevenness on the surface of the composite sheet.

Crosscut ( Cross Cut )

Using a sharp knife, make 100 squares on the sample by drawing 11 lines at 1mm length-to-height spacing. Pull the 3M scotch tape tightly on the surface and then momentarily at 15 ° from the plane.

As a result of the test, the sample had a good surface without peeling.

Cold resistance

The sample is placed in a -25 ° C thermostatic chamber and allowed to stand for 240 hours, then taken out and left at room temperature for 1 hour. In such a state, the appearance quality of the sample surface such as discoloration, bulging and cracking is good, and there is no peeling in the tape test.

As a result of the test, the sample was satisfactory without peeling and discoloration.

Heat resistance

The sample is placed in a 70 ° C thermostatic chamber, left for 240 hours, removed, and left at room temperature for 1 hour. In such a state, the appearance quality of the sample surface such as discoloration, bulging and cracking is good, and there is no peeling in the tape test.

As a result of the test, the sample was satisfactory without peeling and discoloration.

Moisture resistance

The sample is placed in an 80% constant temperature and humidity bath at 60 DEG C, left for 240 hours, removed, and left at room temperature for 1 hour. In such a state, the appearance quality of the sample surface such as discoloration, bulging and cracking is good, and there is no peeling in the tape test.

As a result of the test, the sample was satisfactory without peeling and discoloration.

C / SKD

4 hours at> 60 ° C, 30% humidity => 25 ° C at 30% humidity, 30% humidity at 60 ° C and 30% humidity in C / Is taken as one cycle, and after 10 cycles of testing, the sample is taken out and left at room temperature for 1 hour. In such a state, the appearance quality of the sample surface such as discoloration, bulging and cracking is good, and there is no peeling in the tape test.

As a result of the test, the sample was satisfactory without peeling and discoloration.

Salt spray

The sodium chloride concentration of 5% salt solution sample, test tank temperature 35 ℃, 8 hours at a spray pressure of 1.0 of the condition kgf / cm ² sprayed, by one cycle of 16 hours at rest is tested for 3 cycles. In such a state, the appearance quality of the sample surface such as discoloration, bulging and cracking is good, and there is no peeling in the tape test.

As a result of the test, the sample was satisfactory without peeling and discoloration.

Thermal shock

The sample was subjected to 10 cycles of 70 ° C for 30 minutes and -25 ° C for 30 minutes. In such a state, the appearance quality of the sample surface such as discoloration, bulging and cracking is good, and there is no peeling in the tape test.

As a result of the test, the sample was satisfactory without peeling and discoloration.

Hazardous Substances( XRF )

Measure the Cr, Br, Cd, Hg, Pb content and standard deviation by scanning the sample with an XRF instrument. The table below shows the results of testing hazardous materials in the sample.

exam
Item Cd content
Pb content
Hg content
Br content
Cr content
standard Less than 50 ppm Less than 17 Plastic less than 200ppm,
Solder Less than 100 ppm 67
under Less than 500 ppm Less than 500 ppm Less than 500 ppm Measure result Standard Deviation result Standard
Deviation result Standard
Deviation result Standard Deviation result Standard Deviation surface 0.000 - 0.000 - 0.000 - 2.110 - 0.000 -

As a result of the test, the sample was found to be free of toxic substances or within the standard value.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

100: composite sheet
110: resin layer
111: stripe layer
112: transparent sheet layer
113: Coating layer
120: metal thin film layer
130:
140: Adhesive layer
150: Printed layer
160: Double-sided tape

Claims (11)

In a composite sheet having a metal texture,
Resin layer;
A metal thin film layer formed on the resin layer;
An oxide layer on the metal thin film layer;
An adhesive layer applied over the oxide layer;
A printing layer printed on the adhesive layer by digital printing;
/ RTI >
Wherein the metal thin film layer has a thickness of 0.1 to 0.6 탆 and a light transmittance of 10 to 50%
Wherein the oxide layer has a thickness of 0.05 to 0.3 탆 and a metal texture having a light transmittance of 10 to 50%. In a composite sheet having a metal texture,
Resin layer;
A metal thin film layer formed on the resin layer;
An oxide layer on the metal thin film layer;
An adhesive layer applied under the resin layer;
A printing layer printed under the adhesive layer by digital printing;
/ RTI >
Wherein the metal thin film layer has a thickness of 0.1 to 0.6 탆 and a light transmittance of 10 to 50%
Wherein the oxide layer has a thickness of 0.05 to 0.3 탆 and a metal texture having a light transmittance of 10 to 50%. In a product having a metal texture,
A raw material selected from the group comprising resins, glass, ceramics or tiles;
A metal thin film layer formed on the raw material;
An oxide layer on the metal thin film layer;
An adhesive layer applied over the oxide layer;
A printing layer printed on the adhesive layer by digital printing;
/ RTI >
Wherein the metal thin film layer has a thickness of 0.1 to 0.6 탆 and a light transmittance of 10 to 50%
Wherein the oxide layer has a thickness of 0.05 to 0.3 탆 and a metal texture having a light transmittance of 10 to 50%. 3. The method according to claim 1 or 2,
Wherein the metal thin film layer has a metal texture containing a functional nanomaterial. 5. The method of claim 4,
Wherein the ink of the print layer has a metal texture containing the functional nanomaterial. 6. The method of claim 5,
Wherein the printed layer has a metallic texture containing UV ink. delete delete delete delete delete

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