KR20110018635A - A film applied to the external surface of home appliances and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A decorative member which is attached to an external surface of a home appliances and a manufacturing method thereof are provided to maximize the metallic texture and embodying a design which in fact has a various colors through a gravure printing. CONSTITUTION: An exterior decorative member of an electronic product which can embody a metallic texture without using a stainless steel plate includes a base layer(10), a pattern layer(20), a printing layer(30), a metal layer(40), and a protective layer(50). The base layer is a synthetic resin. The pattern layer includes a finite pattern and is arranged on one side of the base layer. The printing layer is printed on rear surface of a pattern layer. The metal layer is included on rear surface of the printing layer and has a pattern layer which seems like a metallic material color. The protective layer is a synthetic resin which is attached for protecting a metal layer.

Description

Decorative member attached to the outer surface of home appliances and its manufacturing method {A FILM APPLIED TO THE EXTERNAL SURFACE OF HOME APPLIANCES AND MANUFACTURING METHOD THEREOF}

The present invention relates to a decorative member attached to an outer surface of a home appliance and a method of manufacturing the same. More particularly, the pattern is attached to an outer surface of a home appliance such as a refrigerator or an air conditioner to etch a conventional stainless steel panel to feel a metal texture. The present invention relates to an outer decorative member of a home appliance that can replace the formed product, and a manufacturing method thereof.

In general, the exterior of home appliances such as refrigerators, air conditioners or washing machines are equipped with a panel having a beautiful design for the decoration. Recently, as the demand for a design having a metallic texture or a variety of colors is rapidly increased, a pattern using a photolithography process is formed on the surface of the stainless steel panel so that the unique metallic texture and various colors of the stainless steel can be obtained. Implement

Figure 1 shows the manufacturing process of a conventional decorative panel thus forming a pattern on a stainless steel panel and attaching it to glass.

First, as shown in FIG. 1 (a), photoresist is attached to the surface of the stainless steel panel and ultraviolet rays are projected onto the surface of the stainless steel panel through the glass with the mask having the pattern formed thereon. As a result, the pattern of the mask is potentially transferred to the photoresist attached to the surface of the panel. Next, as shown in Fig. 1 (b), when the etching solution is added to etch the stainless steel panel, a pattern of a desired design is formed on the surface of the stainless steel panel. Then, as shown in Fig. 1 (c), the adhesive is laminated by applying a pressure-sensitive adhesive on one surface of the glass plate, attaching a release paper, and passing it between the rollers. Finally, as shown in Fig. 1 (d). As described above, the release paper is separated from the glass plate, and the surface of the stainless steel panel on which the pattern of the stainless steel panel is formed is brought into contact with the surface of the adhesive plate of the glass plate. The decorative panel is completed.

However, since the decorative panel according to the prior art uses a stainless steel panel, the material cost is relatively expensive compared to the synthetic film. In addition, since the photolithography process is used, it is expensive to perform the process. In addition, since the decorative panel has to go through a separate process for each product because of using a stainless steel sheet, there was a problem that the productivity is lowered.

The present invention has been made to solve the above-mentioned conventional problems, and can provide a metal texture without using a stainless steel sheet, and economically mass-produced exterior decorative member and a manufacturing method thereof for home appliances have.

In addition, it is an object of the present invention to provide a decorative member and a method of manufacturing the same that can implement a design representing a variety of colors depending on the angle of view through the pattern imprinting and metal layer.

In addition, the purpose is to maximize the texture of the metal while realizing a design with a variety of colors through gravure printing.

The outer decorative member of the home appliance according to the present invention for achieving the above object, the base layer made of synthetic resin; A pattern layer disposed on one surface of the base layer and provided with a fine pattern; A print layer printed on a rear surface of the pattern layer; A metal layer provided on a rear surface of the print layer to make the pattern layer appear in a color of a metal material; And a protective layer made of synthetic resin attached to protect the metal layer.

In addition, the base layer is preferably made of a transparent material so that the pattern of the pattern layer and the printing surface of the printing layer can be seen from the outside.

In addition, it is preferable that the surface of the base layer is UV coated.

In addition, the pattern layer is preferably formed by pressing and curing the master mold having a pattern formed on the UV curable resin.

In addition, the printed layer is preferably printed using a gravure printing technique.

In addition, the printing layer is preferably printed by containing a metal powder in the ink during gravure printing.

In addition, the metal layer is preferably formed by depositing aluminum.

In addition, the metal layer is preferably formed by attaching an aluminum sheet.

In addition, the protective layer is preferably formed of PVC resin.

And, the manufacturing method of the outer decorative member of the home appliance according to the present invention, forming a base layer of a synthetic resin; Forming a pattern layer having a fine pattern on a rear surface of the base layer; Forming a printed layer on a rear surface of the pattern layer; Forming a metal layer on a rear surface of the printed layer; And attaching a protective layer made of synthetic resin to the rear surface of the metal layer.

In addition, after forming the metal layer and before attaching the protective layer, it is preferable to further include the step of attaching the front surface of the base layer to the glass panel.

In addition, the base layer forming step preferably further comprises the step of UV coating the surface of the base layer.

In the step of forming the pattern layer, it is preferable to form a pattern by pressing a master mold having a pattern formed on the UV-curable resin and curing by projecting ultraviolet rays.

In the printing layer forming step, it is preferable to print using a gravure printing technique.

In addition, in the printing layer forming step, it is preferable to include a metal powder in the ink when printing gravure printing.

In addition, the metal layer forming step is preferably formed by depositing aluminum on the back of the printed layer.

In addition, in the metal layer forming step, it is preferable to form by attaching an aluminum sheet on the back of the printed layer.

In addition, the synthetic resin attached in the protective layer attaching step is preferably a PVC resin.

According to the outer decorative member and the manufacturing method of the home appliance of the present invention described above, the metal texture can be realized without using a stainless steel sheet, and mass production at low cost can be achieved by using an economical manufacturing process and a low-cost material. It works.

In addition, it is possible to implement a design that shows a variety of colors according to the viewing angle through the imprinting of the pattern and metal deposition.

In addition, gravure printing enables the design of a wide variety of colors while maximizing the metal texture.

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

2 is a cross-sectional view showing a layer structure of a decorative panel for home appliances according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing a layer structure of a decorative member for home appliances according to another embodiment of the present invention.

The outer decorative member of the home appliance according to the present invention, the base layer 10 made of synthetic resin; A pattern layer 20 disposed on one surface of the base layer 10 and provided with a fine pattern; A print layer 30 printed on a rear surface of the pattern layer 20; A metal layer 40 provided on a rear surface of the printing layer 30 to make the pattern layer 20 appear in the color of a metal material; And a protective layer 50 made of a synthetic resin attached to protect the metal layer 40.

In addition, the base layer should be at least translucent so that the pattern of the pattern layer 20 attached to the rear surface and the printing surface of the printing layer 20 can be seen from the outside, it is preferably made of a synthetic resin of a transparent material. In particular, the base layer 10 is preferably a PET (polyethylene terephthalate) film of about 10 to 200 µm.

In addition, the surface of the base layer 10 is preferably UV-coated to increase scratch resistance and film hardness. UV coating is a method of coating a coating material using a coating cured in a short time by ultraviolet irradiation, and has a higher hardness, chemical resistance, and corrosion resistance than a general urethane coating. Thereby, the scratch resistance of the base layer 10 can be improved and the hardness of a film can be increased.

The pattern layer 20 is formed by curing a liquid resin using an imprinting technique. The formation process of this pattern layer 20 is shown in FIG. 4 and will be described in detail in the description of the method of manufacturing the decorative member described later. Briefly, the pattern layer 20 is formed by pressing and curing a master mold having a pattern formed on a liquid UV curable resin. It is preferable that especially the liquid resin uses acrylic resin, and the thickness of the formed pattern layer will be about 50-200 micrometers.

The pattern layer 20 is formed by applying a liquid resin to the surface of the base layer 10, pressing the surface of the base layer 10, and curing it, unlike the conventional art of etching a surface of a stainless steel sheet to form a fine pattern. Will be.

The print layer 30 is originally printed on the back of the pattern layer 20, which is a synthetic resin material, it is preferably printed using a gravure printing technique. Gravure printing technology allows you to print multiple designs in succession for each color of the design, printing the desired design.

In addition, the printing layer 30 is more preferably printed by containing a metal powder in the ink during gravure printing. The metal powder to be mixed with the ink is a flake, pearl, or the like having a thickness of 50 µm or less, and can exhibit a metallic color through the metal powder as well as the metal layer described later. It is preferable to form the thickness of the printed layer 30 about 20-100 micrometers.

The metal layer 40 may be formed to have a thickness of about 10 to 100 μm by depositing a metal on the rear surface of the printing layer 30. The metal used for the metal deposition is preferably aluminum because aluminum has the best effect as a background layer which shows the silver gray metal texture best and highlights the image of the pattern layer 20.

In addition, the metal layer 40 may be formed by attaching a sheet of aluminum in the form of a thin plate. In this case, unlike the Al deposition layer described above, the adhesive 45 is applied to the entire surface of the metal layer 40 to attach the printed layer 30.

In addition to the effect of emphasizing the pattern of the pattern layer 20 and the image of the printed layer 30 and the texture of the metal, the metal layer 40 may be formed at an angle viewed by the image of the pattern layer 20. Therefore, it can be seen in various colors. This is because the wavelength of the light passing through the pattern layer 20 and reflected from the surface of the metal layer 40 changes according to the wavelength of the incident light.

The protective layer 50 is formed by applying an adhesive 55 to a sheet having a thickness of about 50 to 200 μm made of synthetic resin and pressing and laminating between two rollers, as well as the metal layer 40 as well as a printing layer ( 30) also serves to protect. Since the protective layer 50 may be made of an opaque material, it is preferable that the protective layer 50 is made of PVC resin.

In addition, this protective layer 50 can prevent product defects, such as a scratch in an additional assembly process. The portion of the decorative member according to the present invention attached to the home appliance is the protective layer 50, and the protective layer 50 may be formed as an opaque layer, so it is common to laminate the PVC sheet.

The semi-finished product of the decorative member thus produced is cut and attached according to the outer shape and size of the home appliance to produce the finished product of the home appliance. A glass panel may be attached to the front surface of the decorative member. In this case, before the laminating the protective layer 50, the decorative member formed up to the metal layer is laminated on the glass panel, and then the protective layer 50 is removed. Laminate.

Next, with reference to Figure 4 will be described a method of manufacturing an outer decorative member of the home appliance according to the present invention. 4 is a view showing a pattern forming process by imprinting in the manufacturing process of the home appliance decorative member according to the present invention.

Method for producing an outer decorative member of the home appliance according to the present invention, forming a base layer of a synthetic resin; Forming a pattern layer having a fine pattern on a rear surface of the base layer; Forming a printed layer on a rear surface of the pattern layer; Forming a metal layer on a rear surface of the printed layer; And attaching a protective layer made of synthetic resin to the rear surface of the metal layer.

First, the base layer 10 is formed of synthetic resin. The base layer 10 is preferably formed of a transparent PET (polyethylene terephthalate) film of about 10 to 200 µm. In addition, the surface of the base layer 10 is preferably UV-coated to increase scratch resistance and film hardness.

Next, the liquid resin is cured using an imprinting technique to form the pattern layer 20. Unlike the prior art in which a pattern is formed by etching a stainless steel sheet using photolithography technology, in the present invention, a patterned master mold is manufactured and imprinted on a synthetic resin sheet to form a pattern.

The imprinting technique applied in the present invention will be described in detail. First, as shown in FIG. 4 (a), a master mold 25 having a desired pattern is embossed is manufactured, and a liquid UV curable resin 22 is applied to the surface of the base layer 21 made of synthetic resin such as PET resin. Then, the master mold 25 and the base layer 21 are left still. Next, as shown in FIG. 4 (b), the master mold 25 is pressed against the UV curable resin 22. This pressing is preferably made by two pressing rollers. Next, as shown in Fig. 4C, the liquid resin 22 is cured by heating while projecting ultraviolet rays. Finally, as shown in FIG. 4 (d), when the master mold 25 is separated from the cured liquid resin 22, the pattern of the master mold is transferred to the resin layer so that the surface of the liquid resin layer 22 is desired. The pattern layer 20 in which the pattern 23 was engraved is completed. The liquid resin 22 is preferably an acrylic UV curable resin, and the thickness of the formed pattern layer 20 is preferably about 50 to 200 μm.

Moreover, it is efficient to perform each process continuously in this pattern layer forming step. For example, the prepared master mold 25 is provided to be rotated on a roller, and the synthetic resin forming the base layer 21 is also transferred by the transfer roller, and the resin is applied while passing through the resin coating device. Then, the master mold 25 and The resin-coated base layer 21 is squeezed between two rollers to which the base layer 21 is rotated to transfer the pattern, and then the UV-curable resin 22 is cured in a UV curing apparatus to cure the resin 22 applied to the base layer 21. The semi-finished pattern layer 20 on which the cured pattern 23 is formed is again wound on a winding roller to be laminated with the base layer 10.

Next, the printed layer 30 is formed on the back surface of the pattern layer 20. The print layer 30 is originally printed on the back surface of the pattern layer 20 which is a synthetic resin material, and it is preferable to form a print layer using a gravure printing technique. Gravure printing technology allows you to print multiple designs in succession for each color of the design, printing the desired design.

In addition, in the printing layer forming step, it is more preferable to include a metal powder in the ink when printing gravure printing. The metal powder to be mixed with the ink is a flake, pearl, or the like having a thickness of 50 µm or less, and can exhibit a metallic color through the metal powder as well as the metal layer described later. It is preferable to form the thickness of the printed layer 30 about 20-100 micrometers.

Next, the metal layer 40 having a thickness of about 10 to 100 μm is formed by depositing a metal on the back surface of the printed layer 30. The metal used for the metal deposition is preferably aluminum because it has the greatest effect as the background layer 20 which shows the metal texture best and highlights the image of the pattern layer 20.

The metal layer 40 may be formed to have a thickness of about 10 to 100 μm by depositing a metal on the rear surface of the printing layer 30. The metal used for the metal deposition is preferably aluminum because aluminum has the best effect as a background layer that shows the metal texture best and highlights the image of the pattern layer 20.

In addition, the metal layer 40 may be formed by attaching a sheet of aluminum in the form of a thin plate. In this case, unlike the Al deposition layer described above, the adhesive 45 is applied to the entire surface of the metal layer 40 to attach the printed layer 30.

Finally, a protective layer 50 made of synthetic resin is attached to the back surface of the metal layer 40. The protective layer 50 is formed by applying an adhesive 45 to a sheet having a thickness of about 50 to 200 μm made of synthetic resin and pressing and laminating the two rollers, and the pattern layer as well as the metal layer 40. 20) also serves to protect. In addition, this protective layer 50 can prevent product defects, such as a scratch in an additional assembly process. The portion of the decorative member according to the present invention attached to the home appliance is the protective layer 50, and the protective layer 50 may be formed as an opaque layer, so it is common to laminate the PVC sheet.

Meanwhile, after forming the metal layer 40 and before attaching the protective layer 50, the method may further include attaching a front surface of the base layer to a glass panel (not shown). The decorative member of the home appliance according to the present invention may be attached directly to the outer surface of the home appliance, but may further attach a panel made of tempered glass or a glass-like synthetic resin to the front surface thereof. In this case, the protective layer 50 is preferably laminated to the rear surface of the metal layer 40 after laminating a glass panel on the front surface of the base layer 10.

The finished semi-finished decorative member is cut according to the outer shape and size of the household electrical appliance and attached to the household electrical appliance through an adhesive between the protective layer and the surface of the household electrical appliance.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to such specific embodiments, and those skilled in the art are appropriately within the scope described in the claims of the present invention. Changes will be possible.

1 is a view showing a manufacturing process of the decorative panel for home appliances according to the prior art.

Figure 2 is a cross-sectional view showing a layer structure of a home appliance decorative member according to an embodiment of the present invention.

3 is a cross-sectional view showing a layer structure of a home appliance decorative member according to another embodiment of the present invention.

4 is a view showing a pattern forming process by imprinting during the manufacturing process of the home appliance decorative member according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: base layer

20: pattern layer

21: base layer

22: UV curable resin

23: pattern

25: master mold

30: gravure printing layer

40: metal layer

45: adhesive

50: protective layer

55: adhesive

Claims (18)

A base layer made of synthetic resin; A pattern layer disposed on one surface of the base layer and provided with a fine pattern; A print layer printed on a rear surface of the pattern layer; A metal layer provided on a rear surface of the print layer to make the pattern layer appear in a color of a metal material; And Exterior decorative member of the home appliance comprising a protective layer made of synthetic resin attached to protect the metal layer. The method of claim 1, The base layer is a decorative member of a home appliance, characterized in that made of a transparent material so that the pattern of the pattern layer and the printing surface of the printing layer can be seen from the outside. The method of claim 1, The base layer is an outer decorative member of the home appliance, characterized in that the surface is UV coated. The method according to any one of claims 1 to 3, The pattern layer is the outer decorative member of the home appliance, characterized in that formed by hardening after pressing the master mold is a pattern formed on the UV curable resin. The method of claim 4, wherein The printing layer is an outer decorative member of a home appliance, characterized in that printed using gravure printing technology. The method of claim 5, The printing layer is an outer decorative member of a home appliance, characterized in that containing the metal powder in the ink during gravure printing. The method of claim 4, wherein The metal layer is an outer decorative member of the home appliance, characterized in that formed by depositing aluminum. The method of claim 4, wherein The metal layer is an outer decorative member of the home appliance, characterized in that formed by attaching an aluminum sheet. The method of claim 4, wherein The protective layer is an outer decorative member of the home appliance, characterized in that formed of PVC resin. Forming a base layer from a synthetic resin; Forming a pattern layer having a fine pattern on a rear surface of the base layer; Forming a printed layer on a rear surface of the pattern layer; Forming a metal layer on a rear surface of the printed layer; And And attaching a protective layer made of synthetic resin to the rear surface of the metal layer. The method of claim 10, And attaching the front surface of the base layer to a glass panel after forming the metal layer and before attaching the protective layer. The method of claim 10, The base layer forming step further comprises the step of UV coating the surface of the base layer manufacturing method of the outer decorative member of the home appliance. The method according to any one of claims 10 to 12, In the step of forming a pattern layer, the method of manufacturing an outer decorative member of a home appliance, characterized in that by pressing the master mold formed with a pattern on the UV-curable resin and curing by projecting ultraviolet rays. The method of claim 13, The method of manufacturing the outer decorative member of the home appliance, characterized in that for printing the printing layer forming step using a gravure printing technology. The method of claim 14, The method of manufacturing the outer decorative member of the home appliance, characterized in that in the printing layer forming step containing the metal powder in the ink during gravure printing. The method of claim 13, The metal layer forming step of manufacturing an outer decorative member of the home appliance, characterized in that formed by depositing aluminum on the back of the printed layer. The method of claim 13, The metal layer forming step of manufacturing an outer decorative member of the home appliance, characterized in that formed by attaching an aluminum sheet on the back of the printed layer. The method of claim 13, Synthetic resin attached in the protective layer attaching step is a manufacturing method of the outer decorative member of the home appliance, characterized in that the PVC resin.

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