KR101559793B1 - A film applied to the external surface of home appliances and manufacturing method thereof - Google Patents

Abstract

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 present invention relates to a decorative member attached to an outer surface of a home appliance such as a refrigerator or an air conditioner, The present invention relates to an outer decorative member of a home appliance and a manufacturing method thereof.

The outer decorative member of the household appliance according to the present invention comprises: a base layer made of a transparent synthetic resin; A pattern layer disposed on one surface of the base layer and having a fine pattern; A printing layer printed on the back side of the pattern layer; A metal layer provided on a back surface of the print layer to make the pattern layer appear as a metallic material; And a protective layer made of a synthetic resin adhered to protect the metal layer.

Home appliances, decoration, imprinting, pattern, gravure printing

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a decorative member to be attached to an outer surface of a home appliance,

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 present invention relates to a decorative member attached to an outer surface of a home appliance such as a refrigerator or an air conditioner, The present invention relates to an outer decorative member of a home appliance and a manufacturing method thereof.

Generally, on the outer surface of a home appliance such as a refrigerator, an air conditioner, or a washing machine, a panel having a beautiful design is attached to the outer surface. In recent years, as the demand for a design having a metal texture or a variety of colors is rapidly increased, a pattern is formed by using a photolithography process on the surface of a stainless steel panel, so that a metal texture unique to stainless steel and various colors .

FIG. 1 shows a manufacturing process of a conventional decorative panel in which a pattern is formed on a stainless steel panel and attached to a glass.

First, as shown in Fig. 1 (a), a photoresist is attached to the surface of a stainless steel panel, and ultraviolet rays are projected onto the surface of the stainless steel panel through a glass having a patterned mask. 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 a stainless steel panel is etched by applying an etching solution, a desired design pattern is formed on the surface of the stainless steel panel. Thereafter, as shown in Fig. 1 (c), PSA (a pressure-sensitive adhesive is applied on one side of the glass plate, and a release paper is attached and passed between the rollers to laminate the adhesive. Finally, The release paper was separated from the glass plate and allowed to stand on the adhesive coated surface of the glass plate so that the patterned surface of the stainless steel panel came into contact therewith, and then passed through the rollers and laminated to form a patterned stainless steel panel and a glass plate attached thereto 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 higher than that of a synthetic resin film. Further, since the photolithography process is used, it is also expensive to perform the process. In addition, because the stainless steel plate is used, the decorative panel has to be subjected to an independent process for each product, resulting in a problem of low productivity.

It is an object of the present invention to provide an outer decorative member of a household appliance which can realize a metal texture without using a stainless steel plate and which can be mass-produced economically and a method of manufacturing the same. have.

It is another object of the present invention to provide a decoration member capable of realizing a design showing various colors according to viewing angles through pattern imprinting and a metal layer, and a manufacturing method thereof.

In addition, it aims to maximize the metal texture while realizing a design with various colors through gravure printing.

According to an aspect of the present invention, there is provided an outer decorative member of a home appliance, comprising: a base layer made of synthetic resin; A pattern layer disposed on one surface of the base layer and having a fine pattern; A printing layer printed on the back side of the pattern layer; A metal layer provided on a back surface of the print layer to make the pattern layer appear as a metallic material; And a protective layer made of a synthetic resin adhered to protect the metal layer.

The base layer is preferably made of a transparent material so that the pattern of the pattern layer and the printed surface of the print layer can be seen from the outside.

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

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

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

In addition, it is preferable that the printing layer contains metal powder in ink during gravure printing.

Further, it is preferable that the metal layer is formed by vapor-depositing aluminum.

Further, it is preferable that the metal layer is formed by attaching an aluminum sheet.

Also, it is preferable that the protective layer is formed of a PVC resin.

According to another aspect of the present invention, there is provided a method of manufacturing a decorative member for an outer surface of a home appliance, comprising: forming a base layer with a synthetic resin; Forming a pattern layer having a fine pattern on a back surface of the base layer; Forming a print layer on the backside of the pattern layer; Forming a metal layer on the back surface of the print layer; And attaching a protective layer made of synthetic resin to the back surface of the metal layer.

Further, it is preferable that the method further comprises the step of attaching the front surface of the base layer to the glass panel before the attachment of the protective layer after the formation of the metal layer.

The base layer forming step may further include UV coating the surface of the base layer.

Also, in the pattern layer forming step, it is preferable that a master mold having a pattern formed on a UV curable resin is pressed and then cured by projecting ultraviolet rays to form a pattern.

Further, in the printing layer forming step, it is preferable to perform printing using a gravure printing technique.

Further, in the printing layer formation step, it is preferable to print the ink containing the metal powder in the gravure printing.

In the metal layer forming step, it is preferable that aluminum is deposited on the back surface of the printing layer.

In the metal layer forming step, it is preferable that an aluminum sheet is adhered to the back surface of the print layer.

In addition, the synthetic resin to be adhered in the step of adhering the protective layer is preferably a PVC resin.

According to the decorative member of the present invention and the method of manufacturing the decorative member of the present invention, metal texture can be realized without using a stainless steel plate, economical manufacturing processes and low cost materials can be used, It is effective.

In addition, the imprinting of the pattern and the deposition of the metal can realize various color design according to the viewing angle.

Gravure printing also allows you to maximize your metal texture while realizing designs with varying colors.

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

FIG. 2 is a cross-sectional view illustrating a layer structure of a decorative panel for a household appliance according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view illustrating a layer structure of a decorative component for a household appliance according to another embodiment of the present invention.

The outer decorative member of the household appliance according to the present invention comprises: a base layer (10) made of synthetic resin; A pattern layer 20 disposed on one side of the base layer 10 and having a fine pattern; A printing layer (30) printed on the rear surface of the pattern layer (20); A metal layer 40 provided on the back surface of the print layer 30 to make the pattern layer 20 appear as a metallic material; And a protective layer 50 made of a synthetic resin adhered to protect the metal layer 40.

In addition, the base layer should be at least semi-transparent so that the pattern of the pattern layer 20 adhered to the back surface of the base layer and the print surface of the print layer 20 can be seen from the outside. Preferably, the base layer is made of a transparent synthetic resin. Particularly, it is preferable that the base layer 10 is a PET (polyethylene terephthalate) film of about 10 to 200 탆.

Further, it is preferable that the surface of the base layer 10 is subjected to UV coating to increase scratch resistance and film hardness. UV coating is a method of coating a substrate using a coating which is cured in a short time by irradiation with ultraviolet rays, which is stronger in hardness, chemical resistance and corrosion resistance than a general urethane coating. As a result, the scratch resistance of the base layer 10 can be enhanced and the hardness of the film can be increased.

The pattern layer 20 is formed by curing a liquid resin using an imprinting technique. The step of forming the pattern layer 20 is shown in Fig. 4 and will be described in detail in the description of a method of manufacturing a decorative member to be described later. Briefly, the pattern layer 20 is formed by pressing a master mold on which a pattern is formed on a liquid UV-curable resin, and curing. Particularly, an acrylic resin is preferably used for the liquid resin, and the thickness of the formed pattern layer is preferably about 50 to 200 mu m.

This pattern layer 20 is formed by applying a liquid resin to the surface of the base layer 10 and pressing it with a master mold and curing it, unlike the prior art in which a fine pattern is formed by etching the surface of a stainless steel thin plate .

The printing layer 30 is originally printed on the back side of the pattern layer 20, which is a synthetic resin material, and is preferably printed using a gravure printing technique. With Gravure printing technology, you can print the desired design continuously by printing several times for each color of the design.

Further, it is more preferable that the printing layer 30 contains metal powder in ink during gravure printing. The metal powder to be mixed with the ink is a flake or pearl having a thickness of 50 탆 or less and can be made to exhibit a metallic color not only through a metallic layer described later but also through the metallic powder. The thickness of the print layer 30 is preferably about 20 to 100 mu m.

The metal layer 40 may be formed to have a thickness of about 10 to 100 mu m by depositing a metal on the backside of the print layer 30. [ The metal used for the metal deposition is preferably aluminum because aluminum has the greatest effect as a background layer which best represents the silver gray color metallic texture and emphasizes the image of the pattern layer 20.

Also, the metal layer 40 may be formed by attaching an aluminum sheet as a thin plate. In this case, unlike the above-described Al vapor deposition layer, an adhesive 45 is applied and attached to the entire surface of the metal layer 40 for attachment to the print layer 30.

The metal layer 40 can enhance the pattern of the pattern layer 20 and the image of the print layer 30 and allow the metal layer 40 to have a texture unique to the metal layer, Therefore, it can be seen in various colors. This is because the wavelength of the light reflected from the surface of the metal layer 40 passing through the pattern layer 20 changes according to the wavelength of incident light.

The protective layer 50 is formed by applying an adhesive 55 to a sheet having a thickness of about 50 to 200 탆 made of synthetic resin and pressing and laminating between the rollers, 30). Since the protective layer 50 may be made of an opaque material, it is preferably made of a PVC resin.

In addition, the protective layer 50 can prevent product defects such as scratches in a further assembly process or the like. Since the portion of the decorative member according to the present invention to be attached to the electrical appliance is directly the protective layer 50 and the protective layer 50 may be formed of the opaque layer, it is common to laminate the PVC sheet.

The semi-finished product of the decorative member thus produced is cut and adhered to the outer shape and size of the household appliance to produce the finished article of the household appliance. In this case, as described later, before the laminating of the protective layer 50, the decoration member formed up to the metal layer is laminated to the glass panel, and then the protective layer 50 Laminating.

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

A method of manufacturing an external decorative member of a home appliance according to the present invention includes: forming a base layer with a synthetic resin; Forming a pattern layer having a fine pattern on a back surface of the base layer; Forming a print layer on the backside of the pattern layer; Forming a metal layer on the back surface of the print layer; And attaching a protective layer made of synthetic resin to the back surface of the metal layer.

First, a base layer 10 is formed of a synthetic resin. The base layer 10 is preferably formed of a transparent PET (polyethylene terephthalate) film having a thickness of about 10 to 200 탆. Further, it is preferable that the surface of the base layer 10 is subjected to UV coating to increase scratch resistance and film hardness.

Next, a pattern layer 20 is formed by curing the liquid resin using an imprinting technique. Unlike the prior art in which a pattern is formed on a stainless steel sheet by etching using a photolithography technique, in the present invention, a master mold having a pattern is formed 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 in which a desired pattern is formed in an embossed shape is prepared, and a liquid UV curable resin 22 is coated on the surface of a base layer 21 made of a synthetic resin such as PET resin Then, the master mold 25 and the base layer 21 are left to stand. Next, as shown in Fig. 4 (b), the master mold 25 is pressed against the UV curable resin 22. It is preferable that the pressing is performed by two pressing rollers. Next, as shown in Fig. 4 (c), 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, a pattern of the master mold is transferred to the resin layer, The pattern layer 20 in which the pattern 23 is formed at an obtuse angle 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 mu m.

Further, it is effective to perform each step continuously in this pattern layer forming step. Illustratively, the prepared master mold 25 is provided so as to be rotated on the rollers, and the synthetic resin constituting the base layer 21 is also conveyed by the conveying roller and applied to the resin while passing through the resin applicator, and then the master mold 25 The base layer 21 on which the resin is applied is squeezed between the two rollers to transfer the pattern, and then the UV curable resin 22 is cured in the UV curing apparatus, whereby the resin 22 applied to the base layer 21 is cured And the patterned layer 20, which is a semi-finished product formed with the cured pattern 23, is again wound on a take-up roller and laminated with the base layer 10.

Next, a printing layer 30 is formed on the rear surface of the pattern layer 20. This print layer 30 is originally printed on the back side of the pattern layer 20, which is a synthetic resin material, and it is preferable to form the print layer using gravure printing technique. With Gravure printing technology, you can print the desired design continuously by printing several times for each color of the design.

Further, in the printing layer forming step, it is more preferable to print the ink containing the metal powder at the time of gravure printing. The metal powder to be mixed with the ink is a flake or pearl having a thickness of 50 탆 or less and can be made to exhibit a metallic color not only through a metallic layer described later but also through the metallic powder. The thickness of the print layer 30 is preferably about 20 to 100 mu m.

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

The metal layer 40 may be formed to have a thickness of about 10 to 100 mu m by depositing a metal on the backside of the print layer 30. [ The metal used for the metal deposition is preferably aluminum because aluminum has the greatest effect as a background layer that best represents the metal texture and emphasizes the image of the pattern layer 20.

Also, the metal layer 40 may be formed by attaching an aluminum sheet as a thin plate. In this case, unlike the above-described Al vapor deposition layer, an adhesive 45 is applied and attached to the entire surface of the metal layer 40 for attachment to the print 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 of about 50 to 200 탆 thick made of synthetic resin and pressing and laminating it between the rollers, 20). In addition, the protective layer 50 can prevent product defects such as scratches in a further assembly process or the like. Since the portion of the decorative member according to the present invention to be attached to the electrical appliance is directly the protective layer 50 and the protective layer 50 may be formed of the opaque layer, it is common to laminate the PVC sheet.

The method may further include attaching a front surface of the base layer to a glass panel (not shown) before attaching the protective layer 50 after the metal layer 40 is formed. The decorating member of the household appliance according to the present invention may be directly attached to the outer surface of the household appliance, but a panel made of synthetic resin similar to tempered glass or glass may be further attached to the front surface of the decorative member. In this case, it is preferable that the protective layer 50 is laminated on the front surface of the base layer 10, followed by laminating the back surface of the metal layer 40.

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

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the present invention. Changes will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a manufacturing process of a decorative panel for household appliances according to the prior art; FIG.

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

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

FIG. 4 is a view illustrating a pattern formation process by imprinting during the manufacturing process of the decorative member for household appliances according to the present invention.

Description of the Related Art

10: base layer

20: pattern layer

21: basal 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 a transparent synthetic resin; A pattern layer provided on a back surface of the base layer and having a three-dimensional fine pattern formed by pressing a master mold having a fine pattern showing different hues according to the viewing angle of the UV-curable resin and curing the master mold; A printing layer printed on the rear surface of the pattern layer using an ink containing a metal powder using a gravure printing technique; A metal layer formed on the backside of the print layer by depositing aluminum or attaching an aluminum sheet to make the pattern layer look like a metallic material; And And a protective layer made of synthetic resin adhered to protect the metal layer. The method according to claim 1, Wherein the pattern of the pattern layer, the printed surface of the print layer, and the metal layer are attached to the household appliances so that they can be seen from outside through the base layer with the protective layer as a background. The method according to claim 1, Wherein the base layer is UV-cured on the surface thereof. delete The method according to claim 1, Wherein the metal powder contained in the ink comprises flake or pearl. delete delete delete The method according to claim 1, Wherein the protective layer is formed of a PVC resin. Forming a base layer with a transparent synthetic resin; Pressing a master mold having a fine pattern showing a hue different from the viewing angle of the UV curable resin on the back surface of the base layer, and curing the master mold by projecting ultraviolet rays to form a pattern layer having a three-dimensional fine pattern; Forming a print layer using an ink containing a metal powder on the back surface of the pattern layer using a gravure printing technique; Depositing aluminum on the back surface of the print layer or attaching an aluminum sheet to form a metal layer; And And attaching a protective layer made of synthetic resin to the back surface of the metal layer. 11. The method of claim 10, Further comprising the step of attaching the front surface of the base layer to the glass panel before attaching the protective layer after the formation of the metal layer. 11. The method of claim 10, Wherein the base layer forming step further comprises UV coating the surface of the base layer. delete delete delete delete delete 11. The method of claim 10, Wherein the synthetic resin attached in the step of attaching the protective layer is PVC resin.

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