KR101157863B1 - Method for Decorating a Solid Surface by Evaporation - Google Patents

Abstract

The present invention relates to a method for decorating a solid surface by vacuum deposition, and more particularly, to a method for decorating a solid surface that imparts a certain function or improves decorability by vacuum deposition on a surface of ceramic glass, metal or plastic. The method of decorating a solid surface may include forming a paint layer on the solid surface with an epoxy paint, a urethane paint, an acrylic paint, or a metal paint; subjecting the paint layer to thermosetting drying or ultraviolet drying; Vacuum depositing different metals or metal compounds together with oxygen, nitrogen, or ethylene to the paint layer to form a functional layer; And forming a silicone coating layer on the functional layer.

Ion Deposition, Epoxy Paint, Metal Paint, Ethylene, Functional Layer

Description

Method for Decorating a Solid Surface by Evaporation

The present invention relates to a method for decorating a solid surface by vacuum deposition, and more particularly, to a method for decorating a solid surface that imparts a certain function or improves decorability by vacuum deposition on a surface of ceramic glass, metal or plastic.

The method of forming a thin film on the surface of a solid may be largely divided into a physical vapor deposition method (PVD) and a chemical vapor deposition method (CVD). Physical thin film formation can be divided into such as vacuum deposition, sputtering and ion plating, and chemical thin film formation methods can be divided into such as spraying and chemical vapor deposition. Evaporation, which belongs to the method of forming a physical thin film, refers to attaching steam generated by heating a piece of metal or nonmetal in a vacuum to the surface of an object. Metal or nonmetallic particles attached to the surface of the object by vacuum deposition form a thin film. If necessary, multiple layers of thin films can be formed, and if necessary, necessary patterns can be printed on the intermediate layer. The present invention relates to a method of improving the appearance of an object while improving the function of the object by forming a plurality of layers on the solid surface by vacuum deposition.

Deep deposition has the advantage of being possible regardless of the object and is especially used for forming thin films on ceramic glass, plastic or metal surfaces. Specifically, it may be applied to an optical product such as an eyeglass lens or a camera lens, and may be applied to a protective coating of a semiconductor process or mechanical equipment. On the other hand, in order to improve the function of the object and at the same time to increase the decorativeness, vacuum deposition is used for the surface treatment of portable electronic devices such as mobile phones or personal portable terminals, household appliances such as refrigerators or washing machines, handles of furniture or grills of automobiles. Moreover, it is used also for the manufacturing process of the circuit board and video tape for electroconductive film electronic components. As such, vacuum deposition has been applied in various fields and is gradually expanding its field of application.

A prior art related to the formation of multiple layers of thin films by vacuum deposition is WO 2003/058660 "Key sheet member and its manufacturing method". The prior art discloses a method for producing a key sheet comprising a decorative sheet consisting of a translucent gas sheet, a transparent gas sheet, a metal thin film layer and a light-shielding colored layer. The semi-transparent gas sheet can be made from an acrylic resin or polycarbonate resin infused with a light diffusing material such that the visible light transmittance is 80 to 93%, the transparent gas sheet can be made of the same resin sheet as the semi-transparent gas sheet, and the metal thin film layer Silver aluminum, nickel, gold, platinum, chromium, iron, copper, tin, indium, silver, titanium, lead, zinc or alloys thereof can be formed by methods such as vacuum deposition, sputtering or ion plating and The photosensitive colored layer may be made of a black ink composed of a two-component curable urethane-based resin. If necessary, a pattern may be formed on the metal thin film layer and the light-shielding colored layer by a laser marking method.

Another prior art for forming a coating layer by vacuum deposition to protect or decorate a surface is Patent Registration No. 810243, "Method for manufacturing a keypad of a mobile terminal and its keypad". The prior art discloses a keypad manufacturing method consisting of a key base color paint layer, a light shielding paint layer, a transmissive marking portion, a metal vacuum deposition layer, and a color printing layer and cellophane paper.

Another prior art for coating a surface of various plastic materials or metal materials by vacuum deposition is Patent Publication No. 2009-0013719, "Method for manufacturing a multilayer thin film using dry vacuum deposition." The prior art provides optical beauty for cases, windows, keypads, function key components and various accessories of portable electronic display products such as mobile phones, MP3 players, portable multiplayer (PMP), digital multimedia broadcast receivers, navigation, notebooks, etc. Undercoat layer formed of carbon-based compound having carboxyl group, phosphoric acid group, silane group, amine group, hydroxyl group, aldehyde group, ketone group, ether group or ketal group for the purpose, SUS, nickel, aluminum, chromium, tin, indium-tin Disclosed is a method of coating a multilayer thin film composed of an optical coating layer formed of a metal or a metal oxide such as on a base material.

Vacuum deposition can be made in various forms, and a certain function can be implemented depending on the deposition conditions. The prior art does not disclose a certain function according to the conditions of vacuum deposition, and thus has a problem in that it is difficult to form a coating layer having a required function.

The present invention has been made to solve the above problems and has the following object.

It is an object of the present invention to provide a method of decorating a solid surface by vacuum deposition to form a coating layer by vacuum deposition under certain conditions so that a specific function can be expressed.

According to a preferred embodiment of the present invention, the method of decorating a solid surface comprises forming a paint layer on the solid surface with an epoxy paint, a urethane paint, an acrylic paint, or a metal paint; thermosetting drying or ultraviolet drying of the paint layer; Vacuum depositing different metals or metal compounds together with oxygen, nitrogen, or ethylene to the paint layer to form a functional layer; And forming a silicone coating layer on the functional layer.

According to another suitable embodiment of the present invention, the method further comprises forming a patterned pattern on the functional layer by laser processing, silk printing or stamping.

According to another suitable embodiment of the invention, the different metals comprise tin.

According to another suitable embodiment of the present invention, the paint layer and the silicone coating layer are 10 to 30 micrometers thick and the functional layer is 10 to 100 angstroms thick.

According to another suitable embodiment of the invention, the different metals are silicon dioxide and titanium dioxide.

The decorative layer formed on the solid surface according to the present invention has the advantage that it can be applied to any solid surface to impart a certain function as well as improve the decorative property by embodying a variety of colors or by forming a pattern pattern .

Hereinafter, the present invention will be described in detail using the embodiments set forth in the accompanying drawings, but the embodiments are provided for clarity of understanding and are not intended to limit the scope of the present invention.

The present invention has been described above in detail by using an embodiment. The embodiments are exemplary and can be made by those skilled in the art without departing from the spirit and scope of the present invention without departing from the spirit and scope of the present invention. But is limited only by the claims appended hereto.

1 schematically shows the process of forming a decorative layer according to the method of the invention.

Referring to Figure 1, forming a paint layer on a solid surface (P11); Thermally curing drying or ultraviolet drying the paint layer (P12); Vacuum depositing different gold or metal compounds together with oxygen, nitrogen or ethylene to the paint layer to form a functional layer (P13); Forming a patterned pattern on the functional layer by laser processing, silk printing or stamping (P14); And forming a silicon coating layer on the functional layer (P15).

According to the invention, the solid may be such as ceramic glass, plastic, wood, electronics case, cell phone, notebook, MP3, case of portable terminal or exterior of white appliance. Solids may also include such as keypads or grills of automobiles. Specifically, the solid surface includes all product surfaces which have a certain appearance which is protected from corrosion or contamination or has a function of absorbing or reflecting light of a certain wavelength while at the same time requiring beautiful decoration. In order to form a coating layer on such a solid surface, surface treatment may be performed first, but it is not necessary. Surface treatment is intended to facilitate the attachment of the paint and can be done according to any method known in the art and includes, for example, polishing or washing.

The paint layer may be formed by spraying an epoxy paint, urethane paint, acrylic paint or metal paint with a spray gun. The choice of each paint can be determined by the physical properties of the solid surface. For example, an epoxy paint may be selected for solid surfaces that require insulation, and a urethane paint may be selected for solid surfaces that require gloss, heat resistance, or cold resistance. The paint layer may have a thickness of 10 to 30 microns, but is not limited thereto.

Paint layers formed to a constant thickness should be cured (P12). Thermal curing or ultraviolet curing method may be applied for curing the paint layer. Hot air of 60 to 80 degrees can be applied to the paint layer over 50 to 100 minutes for thermal curing and the paint layer for 5 to 20 minutes under conditions of 50 to 70 degrees of ultraviolet light of 1000 to 1300 lux for ultraviolet curing. Can be investigated. When the paint layer is dried or cured in this manner (P12), a functional layer may be formed (P13). The functional layer can, for example, be of constant color, prevent charging or have the function of allowing internal light to be transmitted but reflecting external light. The functional layer may be formed by, for example, a vacuum deposition method such as resistive heating, ion deposition, ion plating or sputter deposition. Vacuum deposition may proceed by evaporating the metal or metal compound at high vacuum of 10 ⁻³ to 10 ⁻⁵ torr. The metal is, for example, aluminum (Al), copper (Cu), gold (Au), silver (Ag), barium (Ba), chromium (Cr), nickel (Ni), tin (Sn), titanium ( Ti), silicon (Si), indium (In) or zirconium (Zr) and metal compounds may include their oxide forms, but are not limited thereto.

In order to form the functional layer, it is possible to inject a certain amount of oxygen, nitrogen or ethylene gas while evaporating the metal in the vacuum deposition apparatus. In another way, oxygen, nitrogen or ethylene gas is first injected while evaporating one metal to form one layer according to the mixing reaction of the compound, and oxygen, nitrogen or ethylene gas is injected while the other metal is injected to form another layer. Can be formed. Injecting oxygen, nitrogen or ethylene gas while evaporating the metal is intended to allow for the appearance of the desired color. The color implemented by adjusting the amount of oxygen, nitrogen or ethylene gas injected according to the amount of metal to be evaporated may be adjusted. For example, various colors can be realized as layers are over-lap by injecting a certain amount of oxygen while evaporating titanium and silicon. For example, by injecting a certain amount of oxygen while continuously evaporating different metals, the thickness of the layer can be increased so that the color gradually changes from blue to violet and gradually red. . By forming a continuous layer by injecting oxygen, nitrogen or ethylene gas while evaporating these different metals, the internal light is transmitted and the external light is reflected, for example, in a car grill. Can be given. Alternatively, for example, ethylene gas may be injected in an amount while evaporating at least two metals containing one tin to prevent charging, for example, on the solid surface of the plastic system. As such, the functional layer may have various types of functions depending on the type of metal selected or the type of gas to be injected.

According to the present invention, a metal compound may be used for vacuum deposition. Metal compounds are for example metal oxides such as titanium dioxide or silicon dioxide or include metal nitrides such as titanium nitride, chromium nitride or gallium nitride.

The functional layer may have a thickness of 10 to 100 Angstroms in total, but is not limited thereto. Although the above description has been given of the formation of the functional layer from the layers in the form of superposition as at least two metals are continuously evaporated, a single layer may be formed as necessary. For example, vacuum deposition using tin of about 10 angstroms thick can be done to make the plastic button or key of the cellular phone antistatic.

A pattern may be formed as needed for the functional layer (P14). The fringe pattern may be formed by methods such as laser processing, etching, silk printing or stamping, for example. The pattern may be, for example, a letter, logo or pattern, and may be, for example, a letter engraved on a plastic button, a sign of a key or a decorative pattern formed of a metal or plastic furniture handle.

According to the invention, the functional layer can have a certain function and at the same time enhance the decorative beauty. In addition, by forming a pattern, there is an advantage that the decorative property can be further improved.

When the pattern is formed, the silicon coating layer may be finally formed on the functional layer (P15). The silicone coating layer may have a thickness of 10 to 30 micrometers and may have an antioxidant function. Once the silicone coating layer is formed (P15), the method of decorating the solid surface according to the invention is complete. The silicone coating can be by way of application or spraying, for example, by spray gun, but is not limited thereto.

The decorative layer formed on the solid surface according to the present invention has the advantage that it can be applied to any solid surface to impart a certain function as well as improve the decorative property by embodying a variety of colors or by forming a pattern pattern .

Although the present invention has been described in detail above with reference to the presented embodiments, those skilled in the art may make various modifications and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. . The invention is not limited by these variations and modifications, but is only limited by the scope of the appended claims.

1 schematically shows the process of forming a decorative layer according to the method of the invention.

Claims (4)

Forming a paint layer on the solid surface with an epoxy paint, a urethane paint, an acrylic paint, or a metal paint; Thermosetting drying or ultraviolet drying of the paint layer; Vacuum depositing different metals or metal compounds together with oxygen, nitrogen, or ethylene to the paint layer to form a functional layer; And Forming a silicone coating layer on the functional layer, And wherein the paint and silicon coating layers are 10 to 30 micrometers thick and the functional layer is 10 to 100 angstroms thick. The method of claim 1, further comprising forming a patterned pattern on the functional layer by laser processing, silk printing, or stamping. delete The method of claim 1, wherein the different metals are silicon and titanium.

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