JP4933815B2 - Method for decorating magnesium alloy molded products - Google Patents

Description

  The present invention relates to a method for decorating a magnesium alloy molded product, and more specifically, adhesion, wear resistance, and particularly a gloss level of magnesium alloy molded products such as home appliances, OA devices, mobile devices, and automobile parts. The present invention relates to a decoration method for improving the quality.

  In recent years, there has been an active movement to replace housings such as home appliances, OA equipment, mobile devices, and automobile parts, which have been formed of synthetic resin, with a magnesium alloy having a density comparable to that of synthetic resin and excellent in recyclability. It is made up.

  However, magnesium is an active metal with very poor corrosion resistance. Corrosion begins when it is left in high humidity, and it can be severely corroded just by immersing it in ordinary tap water. Plating is difficult because it reacts violently with hydrochloric acid and sulfuric acid used in processing. Currently, chromate treatment, anodizing treatment, powder coating treatment, etc. are used as surface treatment methods to give corrosion resistance. Since chromate treatment requires the use of hexavalent chromium, it has been denied from environmental problems. In addition, there are restrictions on the types of materials applied to the surface, and the color and gloss of the surface can be reduced. It was difficult to select flexibly.

  Therefore, the surface of the magnesium alloy molded product is currently coated with a thermosetting epoxy resin paint on the undercoat and a hard coat of thermosetting acrylic resin on the top coat. In general, it is common to apply paper to the defective area, fill with putty, and recoat, but when applied to the smoothness of the surface or when recoating, the uniformity of the color tone is remarkably high. In addition, since most cases of mobile phones and the like are made of a composite material of a plastic material and a magnesium alloy material, most of the plastic case uses a UV curable paint for overcoating. Since only the magnesium housing uses a two-component urethane resin paint, the urethane resin has a uniform color tone, such as abrasion resistance, surface smoothness, and glossiness, compared to UV curable paint. Is not, at present, a problem with the very productivity is difficult and design is there, constraints and design compromise on the production is born.

  In addition, a layering method in which a clear acrylic coating film is formed on a solvent-type thermosetting epoxy resin coating film and then a clear coating film is formed using a UV curable resin is also considered. In this method, if it is necessary to repair a defective coating after forming a UV curable resin coating film, the primer coating of the epoxy resin paint has insufficient adhesion. Since the stacking causes a poor adhesion, it cannot actually be repaired, and this decoration method is not adopted.

For this purpose, for example, a magnesium alloy molded article containing magnesium in an amount of 50% by weight or more as a magnesium alloy coated product capable of enhancing the corrosion resistance of the magnesium alloy molded product and improving the adhesion of the coating film by using a treatment liquid not containing chromium. At least one resin selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin and an amino resin. Then, a resin film containing a curing agent and a solvent added as necessary is contacted or painted to form a resin film, then a paint is applied to form a painted film, and then the resin film and the painted film are dried. Or having a surface defect such as a hardened material (see Patent Document 1) or a magnesium alloy material Good metallic material surface with sufficient coating hardness, excellent wear resistance, and excellent hue appearance, as well as a coated product combining plastic and metal materials, such as a casing for mobile phones Even so, a coating film having a uniform hue appearance is formed, and a cured coating film having a thickness of 20 to 40 μm is formed on the surface of the metal material by a powder coating material. A coating system in which a colored coating film is formed with a thermoplastic acrylic resin paint, and a transparent coating film is formed on the colored coating film with a UV curable clear paint, and the minimum melting temperature under the bake-hardening condition of the powder paint Using the one whose viscosity is in the range of 1.0 to 2.0 Pa · s (see Patent Document 2) or the tin previously disclosed by the present applicant and having a purity of 99.99% or more The film thickness is electronically measured by filament vacuum deposition. It is characterized in that a tin thin film 1 of 500 angstrom or less is formed by measurement with an atomic force microscope, the formed tin thin film 1 is not energized, and further, an undercoat layer 2 is formed on the substrate A, The tin thin film 1 is formed on the layer 2, the hard coat layer 31 is formed on the tin thin film 1, and the intermediate coating layer 4 is further formed on the upper surface of the tin thin film. An intermediate coating layer 4 is formed on the upper surface, a decorative portion 5 is formed on the upper surface of the intermediate coating layer 4, and a top coating layer 6 is formed on the upper surface of the decorative portion 5 (see Patent Document 3).
JP 2001-11672 A JP 2004-73936 A Japanese Patent Application Laid-Open No. 2005-289817

  However, the one disclosed in Patent Document 1 previously disclosed is selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin, and an amino resin as an undercoat on a magnesium alloy molded product containing 50% by weight or more of magnesium. At least one resin to be added and a curing agent added as necessary, a resin solution containing a solvent is contacted or painted to form a resin film, but has poor shielding and adhesion, and The surface smoothness is inferior, and the one described in Patent Document 2 is formed by baking a cured coating film, and this type of product is manufactured by combining a plastic material portion and a magnesium material portion. The composition of the coating film is different between the plastic material part and the magnesium material part, and the hue appearance is different. The thing described in Permissible Literature 3 uses tin having a purity of 99.99% or more to form a tin thin film 1 having a thickness of 500 angstroms or less as measured by an electron force microscope using a filament type vacuum deposition method or the like. The formed tin thin film 1 is not energized, and is adapted to a method for decorating a magnesium alloy formed product.

In view of the above-mentioned problems, the present invention is a result of diligent study. As a result, the method for decorating a magnesium alloy-formed product according to claim 1 impregnates a magnesium alloy molded product with a treatment liquid for coating pretreatment for several minutes to 1 hour. forming a chemical conversion treatment film performs anodic electrolysis treatment in the chemical treatment film or the treatment solution by the light reflecting fine powder of the metallic mica metal primer on the surface of the chemical conversion film, mica, at least one of aluminum powder The first undercoat layer of 1 to 50 microns is formed by spraying, dipping or spin-coating a two-component curable urethane-based resin paint or a clear two-component curable urethane-based resin paint containing a bright material containing 1-5 by the process and, means for applying the spraying UV-curable resin paint coating or dipping coating or spin coating on the surface of the first undercoating layer A step of forming a micron second undercoat layer, and an upper surface of the second undercoat layer by vacuum deposition, sputtering, ion plating, CVD or metal oxide or oxide compound by an electric beam type vacuum. A step of forming a single-layer or multi-layer vapor-deposited film by a vapor deposition method, and a filament-type vacuum vapor deposition method, an electric beam type, an ion plating apparatus, or sputtering of tin, indium tin alloy or indium on the upper surface of the single-layer or multi-layer vapor-deposited film A step of forming a tin or indium thin film having a thickness of 500 angstroms or less as measured by an atomic force microscope with an apparatus, and a UV curable resin, a one-part acrylic urethane-based resin, or a two-part acrylic on the upper surface of the tin or indium thin film By means of applying urethane resin or two-part acrylic silicon resin Forming a top coat layer of 50 microns, it is intended to include.

Further, a process for forming a chemical conversion treatment thin film by impregnating a magnesium alloy molded product with a treatment liquid for coating pretreatment for several minutes to one hour and subjecting the chemical conversion treatment thin film or treatment solution to anodic electrolytic treatment, and the surface of the chemical conversion treatment thin film Sprayed with a two-part curable urethane resin paint or a clear two-part curable urethane resin paint containing a glittering material containing at least one of metallic mica, mica, and aluminum powder as a light reflective fine powder of metal primer Alternatively, a step of forming a first undercoat layer of 1 to 50 microns by dipping or spin coating, and spraying or dipping or applying a spin coating with a UV curable resin paint on the surface of the first undercoat layer Forming a second undercoat layer of 1 to 50 microns by means, and applying a metal to the upper surface of the second undercoat layer by vacuum evaporation or spa A step of forming a single-layer or multi-layer deposition film by a metal deposition method or an ion plating method, a CVD method, or an electric beam type vacuum deposition method using a metal oxide or an oxide compound, and tin on the upper surface of the single-layer or multi-layer deposition film. Or a step of forming a thin film of tin or indium of 500 angstroms or less as measured by an atomic force microscope with an indium tin alloy or indium using a filament-type vacuum deposition method, an electric beam type, an ion plating device or a sputtering device; Laser marking treatment from the upper surface of the tin or indium thin film and engraving the laser marking, and UV curable resin or one-part acrylic urethane resin or two-part acrylic urethane system from the upper surface of the thin film engraved with the laser marking Resin or two-part acrylic silicone resin Forming a top coat layer of 1 to 50 microns by means of coating, it is intended to include.

Furthermore, a process for forming a chemical conversion treatment thin film by impregnating a magnesium alloy molded product with a treatment liquid for pre-coating for several minutes to one hour and subjecting the chemical conversion treatment thin film or treatment solution to anodic electrolytic treatment; Spray the surface with a two-part curable urethane-based resin paint or a clear two-part curable urethane-based resin paint that contains a glittering material containing at least one of metallic reflective mica, mica, and aluminum powder. Applying or dipping or spin-coating to form a first subbing layer of 1 to 50 microns, and spraying or dipping or spin-coating a UV curable resin paint on the surface of the first subbing layer Forming a second undercoat layer of 1 to 50 microns by means of performing a process, and applying a metal to the upper surface of the second undercoat layer by vacuum evaporation or sputtering. A step of forming a single-layer or multi-layer deposition film by a sputtering method, an ion plating method, a CVD method, or an electric beam type vacuum deposition method using a metal oxide or an oxide compound, and tin on the upper surface of the single-layer or multi-layer deposition film. Or a step of forming a thin film of tin or indium of 500 angstroms or less as measured by an atomic force microscope with an indium tin alloy or indium using a filament-type vacuum deposition method, an electric beam type, an ion plating device or a sputtering device; A step of engraving the laser marking from the upper surface of the tin or indium thin film, and an upper surface of the tin or indium thin film on which the laser marking has been engraved; Liquid acrylic urethane resin or two liquid A step of forming an intermediate coating layer of 1 to 50 microns by means of applying a silicon-based resin, and a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic on the upper surface of the intermediate coating layer And a step of forming a topcoat layer of 1 to 50 microns by means of applying a silicon-based resin.

In addition, a process of forming a chemical conversion treatment thin film by impregnating a magnesium alloy molded product with a treatment liquid for coating pretreatment for several minutes to one hour and performing an anodic electrolytic treatment in the chemical treatment thin film or the treatment solution; Spray the surface with a two-part curable urethane-based resin paint or a clear two-part curable urethane-based resin paint that contains a glittering material containing at least one of metallic reflective mica, mica, and aluminum powder. A process of forming a first undercoat layer of 1 to 50 microns by coating or dipping or spin coating, and spraying or dipping or spin coating a UV curable resin paint on the surface on which the first undercoat layer has been formed forming a second subbing layer of 1 to 50 microns by a coating which means, vacuum depositing a metal on the top surface of the second undercoating layer Or a step of forming a single-layer or multi-layer deposition film by sputtering method, ion plating method, CVD method or metal beam or oxide compound by an electric beam type vacuum deposition method, and an upper surface of the single-layer or multi-layer deposition film. forming a thin film of 500 angstroms or less of tin or indium film thickness measurement of the atomic force microscope by a tin or indium-tin alloy or indium filaments vacuum deposition or electric-beam or ion plating device or sputtering device An intermediate coating layer of 1 to 50 microns is formed on the upper surface of the tin or indium thin film by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin. Laser marking from the top surface of the process and intermediate coating layer Process of engraving laser marking, and UV curable resin, 1 liquid acrylic urethane resin, 2 liquid acrylic urethane resin or 2 liquid acrylic silicon resin on the top surface of the intermediate coating with laser marking And a step of forming a topcoat layer of 1 to 50 microns by means of applying.

Furthermore, a process for forming a chemical conversion treatment thin film by impregnating a magnesium alloy molded product with a treatment liquid for pre-coating for several minutes to one hour and subjecting the chemical conversion treatment thin film or treatment solution to anodic electrolytic treatment; Spray the surface with a two-part curable urethane-based resin paint or a clear two-part curable urethane-based resin paint that contains a glittering material containing at least one of metallic reflective mica, mica, and aluminum powder. A process of forming a first undercoat layer of 1 to 50 microns by coating or dipping or spin coating, and spraying or dipping or spin coating a UV curable resin paint on the surface on which the first undercoat layer has been formed forming a second subbing layer of 1 to 50 microns by a coating which means, vacuum depositing a metal on the top surface of the second undercoating layer Or a step of forming a single-layer or multi-layer deposition film by sputtering method, ion plating method, CVD method or metal beam or oxide compound by an electric beam type vacuum deposition method, and an upper surface of the single-layer or multi-layer deposition film. forming a thin film of 500 angstroms or less of tin or indium film thickness measurement of the atomic force microscope by a tin or indium-tin alloy or indium filaments vacuum deposition or electric-beam or ion plating device or sputtering device An intermediate coating layer of 1 to 50 microns is formed on the upper surface of the tin or indium thin film by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin. Laser marking from the top surface of the process and intermediate coating layer Process of engraving laser marking, and UV curable resin, 1 liquid acrylic urethane resin, 2 liquid acrylic urethane resin or 2 liquid acrylic silicon resin on the upper surface of the intermediate coating layer with the laser marking A step of forming a second intermediate coating layer of 1 to 50 microns by means of applying a UV curable resin, a one-part acrylic urethane resin or a two-part acrylic urethane resin on the upper surface of the second intermediate coating layer, or And a step of forming a topcoat layer of 1 to 50 microns by means of applying a two-component acrylic silicon resin.

Furthermore, the chemical conversion treatment is intended to include a step of forming a more printing layer in the printing or hot stamping or transfer machining the surface of the thin film, further, printing or hot stamping on the top surface of the monolayer or multilayer vapor-deposited film processing or There comprising forming a more printed layers on the transfer processing, furthermore, which comprises forming a more printing layer in the printing or hot stamping or transfer machining the upper surface of the top coat layer, and further, intermediate it is intended to include a step of forming a more printing layer in the printing or hot stamping or transfer machining the upper surface of the layer or the second in coating layer.

  According to the method for decorating a magnesium alloy molded product of the present invention, a chemical conversion treatment film is formed on the magnesium alloy molded product, and then the first undercoat layer is formed by using a two-component curable urethane-based resin paint that contains a glittering material or is clear. A second undercoat layer of UV curable resin paint is formed on the surface, a single-layer or multilayer deposited film is formed on the surface, and a thin film of tin or indium is further formed on the surface. Furthermore, by forming a top coat layer on the surface, or engraving a laser marking on the upper surface of the tin or indium thin film, and further forming an intermediate coating layer on the laser marking As a result, the two-part curable urethane-based resin paint of the first undercoat layer has very good adhesion to the chemical conversion treatment film, the hiding property of the base of the magnesium alloy molded product is also excellent, and the adhesion is dramatically improved. , In addition, the top coat layer has improved wear resistance, smoothness, uniformity of color tone, and color development, and is the original metal that has the characteristics of magnesium alloy that is thin, lightweight, strong, and shielded. A feeling can be obtained.

  Furthermore, the method of decorating a magnesium alloy molded product of the present invention in which a top coat layer is formed on a magnesium molded product with a UV curable resin paint, the top coat layer of a UV curable resin paint that has been impossible to repair up to now is applied. The formed magnesium alloy molded product can also be repaired and regenerated. Conventionally, a coating with a gloss level of 100% can be formed from a gloss level of about 70% in order to recoat defective parts of the coating. The UV curable resin coating increases the productivity significantly, and the conventional two-part thermoplastic resin coating that requires a baking and drying time of 30 to 60 minutes uses a UV curable resin coating. Example that requires strength because it leads to an increase in work efficiency of 1/4 to 5 to 20 minutes, and also improves adhesion, wear resistance, and highly reliable functionality. If as it can decorating with use in a hinge portion or the like, a highly innovative, practical invention.

  Hereinafter, the decorating method of the magnesium alloy molded product of the present invention will be described in detail with reference to the drawings of the embodiments. FIG. 1 is an explanatory diagram for explaining the first embodiment of the decorating method of the magnesium alloy molded products of the present invention. FIG. 2 is an explanatory diagram for explaining Example 2 of the method for decorating a magnesium alloy molded product of the present invention, and FIG. 3 is Example 3 of the method for decorating the magnesium alloy molded product of the present invention. FIG. 4 is an explanatory diagram for explaining Example 4 of the method for decorating a magnesium alloy molded product of the present invention, and FIG. 5 is an explanatory diagram of the magnesium alloy molded product of the present invention. It is explanatory drawing for description of Example 5 of the decorating method, FIG. 6 is explanatory drawing for description of Example 6 of the decorating method of the magnesium alloy molded article of this invention, FIG. 7 is FIG. Explanatory drawing for description of Example 7 of the decoration method of a magnesium alloy molded article FIG. 8 is an explanatory diagram for explaining Example 8 of the method for decorating a magnesium alloy molded product according to the present invention, and FIG. 9 is a diagram explaining Example 9 of the method for decorating the magnesium alloy molded product according to the present invention. It is explanatory drawing for.

The present invention relates to a method for decorating a magnesium alloy molded product, and more specifically, adhesion, wear resistance, and particularly a gloss level of magnesium alloy molded products such as home appliances, OA devices, mobile devices, and automobile parts. The method for decorating a magnesium alloy-formed product according to claim 1 is obtained by impregnating a magnesium alloy molded product A with a treatment liquid for coating pretreatment for several minutes to 1 hour. A step of forming a chemical conversion treatment thin film Aa by performing an anodic electrolytic treatment in a treatment thin film or a treatment solution, and at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer on the surface of the chemical conversion treatment thin film Aa Spray coating or dipping coating with a two-component curable urethane resin paint or a clear two-component curable urethane resin paint containing a glittering material containing The coating of the first forming an undercoat layer 1, spraying UV-curable resin coating on the first undercoat layer 1 of a surface coating or dipping coating or spin-coating of 1-50 microns by spin coating Forming a second undercoat layer 2 of 1 to 50 microns by means, and applying a metal to the upper surface of the second undercoat layer 2 by vacuum deposition, sputtering, ion plating, CVD, or metal oxide or A step of forming a single layer or a multilayer vapor deposition film 3 by an electric beam type vacuum vapor deposition method of an oxide compound, and a filament type vacuum vapor deposition method of tin, indium tin alloy or indium on the upper surface of the single layer or multilayer vapor deposition film 3 or 500 the film thickness measurement of the atomic force microscope by Electric-beam or ion plating device or sputtering device Å Forming a following tin or film 4 of indium arm, said tin or UV curable resin on the upper surface of the thin film 4 of indium or one-liquid acrylic-urethane resin or two-liquid acrylic-urethane resin or two-liquid acrylic silicon resin And a step of forming a top coat layer 5 of 1 to 50 microns by means of applying the coating.

Furthermore, the method for decorating a magnesium alloy molded product according to claim 2 is characterized in that the magnesium alloy molded product A is impregnated in a treatment liquid for pre-coating for several minutes to 1 hour for anodic electrolysis in a chemical conversion treatment thin film or treatment solution. Two liquids containing a step of forming a chemical conversion treatment thin film Aa by performing a treatment, and a glittering material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer on the surface of the chemical conversion treatment thin film Aa Forming a first undercoat layer 1 of 1 to 50 microns by spraying or dipping or spin-coating a curable urethane resin paint or a clear two-component curable urethane resin paint; second under the 1-50 micron by means for applying the undercoat layer 1 of blown UV curable resin coating on the surface coating or dipping coating or spin-coating And forming a metal layer 2 on the upper surface of the second undercoat layer 2 by a vacuum deposition method, a sputtering method, an ion plating method, a CVD method, or a metal oxide or an oxide compound by an electric beam type vacuum deposition method. A step of forming a single-layer or multi-layer vapor deposition film 3 on the upper surface of the single-layer or multi-layer vapor deposition film 3, tin or indium tin alloy or indium by a filament-type vacuum vapor deposition method, an electric beam type, an ion plating apparatus or A step of forming a tin or indium thin film 4 having a film thickness of 500 angstroms or less as measured by an atomic force microscope using a sputtering apparatus; a step of laser marking from the upper surface of the thin film 4 to engrave a laser marking 6; UV curing from the top surface of the tin or indium thin film 4 with the laser marking 6 Forming a topcoat layer 5 of 1 to 50 microns by means of applying a resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin. It is.

Furthermore, the method for decorating a magnesium alloy molded product is characterized in that the magnesium alloy molded product A is impregnated with a treatment liquid for coating pretreatment for several minutes to 1 hour, and an anodic electrolysis treatment is performed in the chemical conversion treatment thin film or treatment solution. A step of forming a chemical conversion treatment thin film Aa, and a two-component curing type containing a bright material containing at least one of metallic mica, mica, and aluminum powder of a light-reflective fine powder of a metal primer on the surface of the chemical conversion treatment thin film Aa Forming a first undercoat layer 1 of 1 to 50 microns by spraying, dipping or spin-coating a urethane resin paint or a clear two-component curable urethane resin paint; and the first undercoat layer the second subbing layer of 1 to 50 microns by means for applying the coating or dipping coating or scan Pinkoto spraying UV-curable resin coating on the first surface And a single layer on the upper surface of the second undercoat layer 2 by a vacuum deposition method, a sputtering method, an ion plating method or a CVD method, or a metal oxide or an oxide compound by an electric beam type vacuum deposition method. Alternatively, the step of forming the multilayer deposited film 3 and the top surface of the single layer or multilayer deposited film 3 with tin, indium tin alloy or indium by a filament type vacuum deposition method, an electric beam type, an ion plating device or a sputtering device. A step of forming a tin or indium thin film 4 having a thickness of 500 angstroms or less as measured by an atomic force microscope , a step of laser marking from the upper surface of the tin or indium thin film 4 and engraving a laser marking 6; The upper surface of the tin or indium thin film 4 on which the laser marking 6 is engraved A step of forming an intermediate coating layer of 1 to 50 microns by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin; and the intermediate coating layer 7 Forming a topcoat layer 5 of 1 to 50 microns by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin on the upper surface of It is characterized by this.

In addition, the method for decorating a magnesium alloy molded product according to claim 4 is characterized in that the magnesium alloy molded product A is impregnated with a treatment liquid for pre-coating treatment for several minutes to 1 hour to form an anode in a chemical conversion treatment thin film or treatment solution. A step of forming a chemical conversion treatment thin film Aa by electrolytic treatment, and a surface of the chemical conversion treatment thin film Aa containing a glittering material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer 2 A step of spraying, dipping or spin-coating a liquid curable urethane resin paint or a clear two-component curable urethane resin paint to form a first undercoat layer 1 of 1 to 50 microns ; 1-50 microns subbing layer 1 and the formed surface by means of applying a spray coating or dipping coating or spin-coating a UV-curable resin coating composition A step of forming a second undercoat layer 2, a metal on the upper surface of the second undercoat layer 2 by a vacuum deposition method, a sputtering method, an ion plating method, a CVD method, or a metal oxide or an oxide compound of an electric beam type. A step of forming a single-layer or multi-layer vapor deposition film 3 by a vacuum vapor deposition method, and a tin-type indium tin alloy or indium on the upper surface of the single-layer or multi-layer vapor deposition film 3 by a filament type vacuum vapor deposition method, an electric beam type or an ion plate. A step of forming a tin or indium thin film 4 having a film thickness of 500 angstroms or less as measured by an atomic force microscope using a coating apparatus or a sputtering apparatus, and a UV curable resin or one-part acrylic on the upper surface of the tin or indium thin film 4 Hand to apply urethane resin or two-component acrylic urethane-based resin or two-component acrylic silicon-based resin The step of forming an intermediate coating layer 7 of 1 to 50 microns by the above, the step of laser marking from the upper surface of the intermediate coating layer 7 to engrave the laser marking 6, and the intermediate coating layer engraved with the laser marking 6 Forming a top coat layer 5 of 1 to 50 microns by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin on the upper surface of 7. It is characterized by including.

Furthermore, in the method for decorating a magnesium alloy molded article according to claim 5, the magnesium alloy molded article A is impregnated with a treatment liquid for pre-coating treatment for several minutes to 1 hour, and the anode is formed in a chemical conversion treatment thin film or treatment solution. A step of forming a chemical conversion treatment thin film Aa by electrolytic treatment, and a surface of the chemical conversion treatment thin film Aa containing a glittering material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer 2 A step of spraying, dipping or spin-coating a liquid curable urethane resin paint or a clear two-component curable urethane resin paint to form a first undercoat layer 1 of 1 to 50 microns ; 1-50 microns subbing layer 1 and the formed surface by means of applying a spray coating or dipping coating or spin-coating a UV-curable resin coating composition A step of forming a second undercoat layer 2, a metal on the upper surface of the second undercoat layer 2 by a vacuum deposition method, a sputtering method, an ion plating method, a CVD method, or a metal oxide or an oxide compound of an electric beam type. A step of forming a single-layer or multi-layer vapor deposition film 3 by a vacuum vapor deposition method, and a tin-type indium tin alloy or indium on the upper surface of the single-layer or multi-layer vapor deposition film 3 by a filament type vacuum vapor deposition method, an electric beam type or an ion plate. A step of forming a tin or indium thin film 4 having a film thickness of 500 angstroms or less as measured by an atomic force microscope using a coating apparatus or a sputtering apparatus, and a UV curable resin or one-part acrylic on the upper surface of the tin or indium thin film 4 Hand to apply urethane resin or two-component acrylic urethane-based resin or two-component acrylic silicon-based resin The step of forming an intermediate coating layer 7 of 1 to 50 microns by the above, the step of laser marking from the upper surface of the intermediate coating layer 7 to engrave the laser marking 6, and the intermediate coating layer engraved with the laser marking 6 Forming a second intermediate coating layer 7a of 1 to 50 microns by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin on the upper surface of 7 And a top coat of 1 to 50 microns by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin to the upper surface of the second intermediate coating layer 7a. And a step of forming the layer 5.

Furthermore, the decoration method of the magnesium alloy molded product of Claim 6 is the decoration method of the magnesium alloy molded product as described in any one of Claims 1-5. WHEREIN: On the surface of the said chemical conversion treatment thin film Aa. The method includes a step of forming the printing layer 8 by printing, hot stamping, transfer processing, or the like.

Furthermore, the decoration method of the magnesium alloy molded product according to claim 7 is the method for decorating the magnesium alloy molded product according to any one of claims 1 to 5, wherein the single-layer or multilayer vapor-deposited film is used. including the step of forming a more printed layer 8 in the printing or hot stamping or transfer machining the third upper surface and is characterized in.

Furthermore, the method for decorating a magnesium alloy molded product according to claim 8 is the method for decorating a magnesium alloy molded product according to any one of claims 1 to 5, wherein the top surface of the top coat layer 5 is the top surface. it is characterized in further comprising the step of forming a more printed layer 8 in the printing or hot stamping or transfer machining.

Furthermore, the decorating method of the magnesium alloy molded product according to claim 9 is the decorating method of the magnesium alloy molded product according to any one of claims 3 to 5, wherein the intermediate coating layer 7 or it is characterized in further comprising the step of forming a more printed layer 8 in the printing or hot stamping or transfer machining the upper surface of the second inside coating layer 7a.

  That is, Example 1 of the method for decorating a magnesium alloy molded product according to the present invention includes a magnesium alloy molded product A, a chemical conversion treatment layer Aa, a first undercoat layer 1 and a second undercoat layer 2 as shown in FIG. And a single layer or multilayer vapor deposition film 3, a tin or indium thin film 4, and a top coat layer 5.

  Magnesium alloy molded product A has a density comparable to that of synthetic resin and is excellent in recyclability. Therefore, in recent years, mobile phones, digital cameras, AV equipment, electronic parts, vehicle interior and exterior parts, personal computers , Which are widely used for PDA-related parts, cosmetic containers, etc., but magnesium alloy formation is a very unstable metal, so the process of forming the chemical conversion treatment layer Aa on the surface is carried out It is.

Next, in the step of forming the chemical conversion thin film Aa, the magnesium alloy molded product A is impregnated with the treatment liquid for pre-coating for several minutes to 1 hour to form the chemical conversion thin film Aa, or the magnesium alloy molded product Magnesium alloy connected to the anode by immersing A in a thin sulfuric acid aqueous solution, using the magnesium alloy molded product A as an anode, and using a lead plate or carbon plate not affected by the sulfuric acid aqueous solution as a cathode, and passing a direct current. A film is grown on the surface of the product A to form a chemical conversion treatment thin film Aa. The formed chemical conversion treatment film Aa is made of a very stable substance and has excellent corrosion resistance.

Next, the step of forming the first undercoat layer 1 is performed by spraying, dipping or spin-coating the surface of the chemical conversion treatment thin film Aa formed in the step of forming the chemical conversion treatment thin film Aa to form an undercoat layer of 1 to 50 microns. The undercoat layer 1 is a two-component curable type containing a luminescent material containing any of metallic reflective mica, mica, and aluminum powder as a metal primer, or a luminescent material obtained by mixing these materials. Either a urethane resin paint is used, or a clear two-component curable urethane resin paint is used.

Further, the step of forming the second undercoat layer 2 includes a step of applying a UV curable resin paint to the surface of the first undercoat layer 1 by means of spray coating, dipping coating, or spin coating to 1 to 50 microns. The undercoat layer 2 is applied.

  Further, in the step of forming the single-layer or multi-layer vapor deposition film 3, a metal such as aluminum, chromium, titanium, gold, silver, tin or the like is deposited on the upper surface of the second undercoat layer 2 by vacuum deposition, sputtering, ion A vapor deposition film 3 is formed by multilayer deposition by means of a plating method, a CVD method or the like, or a metal oxide such as titanium nitride, titanium oxide, magnesium oxide, aluminum oxide, or an oxide compound such as silicon oxide. The vapor deposition film 3 is formed by vapor deposition in multiple layers by an electric beam type vacuum vapor deposition method. For example, the vapor deposition film 3 can be laminated in a rainbow or iridescent color by vacuum vapor deposition of metal in multiple layers. is there.

In the step of forming the tin or indium thin film 4, the tin or indium thin film 4 is formed on the upper surface of the single-layer or multilayer vapor-deposited film 3, and the tin or indium thin film 4 is tin or indium tin. An alloy or indium is formed to a thickness of 500 angstroms or less as measured by an atomic force microscope using a filament type vacuum deposition method, an electric beam type, an ion plating device or a sputtering device.

Next, in the step of forming the top coat layer 5, a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin is sprayed on the upper surface of the tin or indium thin film 4. The top coat layer 5 of 1 to 50 microns is formed by means of coating, dipping or spin coating .

  Further, Example 2 of the method for decorating a magnesium alloy molded product according to the present invention includes a magnesium alloy molded product A, a chemical conversion treatment layer Aa, a first undercoat layer 1 and a second undercoat layer 2 as shown in FIG. And a single or multilayer deposited film 3, a tin or indium thin film 4, a laser marking 6, and a top coat layer 5.

  In other words, in addition to the above-described first embodiment, the second embodiment performs a step of laser marking from the tin or indium thin film 4 to engrave the laser marking 5, and the laser marking 5 is tin or indium. Only the indium thin film 4 or the tin or indium thin film 4 and the single-layer or multilayer vapor-deposited film 3 may be engraved. It is engraved so that it can be visually observed.

And after engraving the laser marking 5, the upper surface of the thin film 4 of tin or indium is 1 to 50 microns with a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin. The step of forming the top coat layer 5 is carried out, and the details of the other steps are the same as those in the first embodiment, and will be omitted.

  Furthermore, in the third embodiment of the method for decorating a magnesium alloy molded product of the present invention, as shown in FIG. 3, the magnesium alloy molded product A, the chemical conversion treatment layer Aa, the first undercoat layer 1 and the second undercoat layer. 2, a single layer or multilayer deposited film 3, a tin or indium thin film 4, an engraving of a laser marking 6, an intermediate coating layer 7, and a topcoat layer 5.

  That is, in addition to Example 2 described above, Example 3 is a UV curable resin, a one-part acrylic urethane resin, or a two-part acrylic urethane resin on the upper surface of the tin or indium thin film 4 after engraving the laser marking 5. Alternatively, the step of forming the intermediate coating layer 7 of 1 to 50 microns by means of applying a two-component acrylic silicon resin is performed.

Then, after the intermediate coating layer 7 is formed, the top coat layer 5 of 1 to 50 microns is formed by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin. The step of forming is performed, and the detailed description of the other steps is the same as in the first and second embodiments, and will be omitted.

  In addition, as shown in FIG. 4, Example 4 of the method for decorating a magnesium alloy molded product of the present invention includes a magnesium alloy molded product A, a chemical conversion treatment layer Aa, a first undercoat layer 1 and a second undercoat layer. 2, a single-layer or multi-layer deposition film 3, a tin or indium thin film 4, an intermediate coating layer 7, a laser marking 6, and a top coat layer 5.

That is, in Example 4, the order of the steps in Example 3 described above was changed, and the UV curable resin, the one-component acrylurethane resin, the two-component acrylurethane resin, or 2 A step of forming an intermediate coating layer 7 of 1 to 50 microns by means of applying a liquid acrylic silicon-based resin is performed.

  And the laser marking process is carried out from the upper surface of the intermediate coating layer 7 to carry out the process of engraving the laser marking 5, and the laser marking 5 is only the intermediate coating layer 7 or the thin film 4 of tin or indium, or The intermediate coating layer 7 and the tin or indium thin film 4 and the single-layer or multilayer deposited film 3 may be engraved.

Next, after engraving the laser marking 5, the intermediate coating layer 7 is coated with a UV curable resin, a one-component acrylurethane resin, a two-component acrylurethane resin, or a two-component acrylsilicone resin. The step of forming the micron topcoat layer 5 is performed, and the details of the other steps are the same as those in the first to third embodiments, and will be omitted.

  Furthermore, in the fifth embodiment of the method for decorating a magnesium alloy molded product of the present invention, as shown in FIG. 5, the magnesium alloy molded product A, the chemical conversion treatment layer Aa, the first undercoat layer 1 and the second undercoat layer. 2, a single-layer or multi-layer deposition film 3, a tin or indium thin film 4, an intermediate coating layer 7, a laser marking 6, a second intermediate coating layer 7 a, and a topcoat layer 5. .

  That is, in addition to Example 4 described above, Example 5 is a UV curable resin, a one-part acrylic urethane resin, or a two-part acrylic urethane resin on the upper surface of the intermediate coating layer 7 after the laser marking 5 is engraved. A step of forming a second intermediate coating layer 7a of 1 to 50 microns by means of applying a two-component acrylic silicon resin is performed.

Next, a top of 1 to 50 microns is applied to the upper surface of the second intermediate coating layer 7a by means of applying a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based resin. The step of forming the coat layer 5 is carried out, and the details of the other steps are the same as those of the first to fourth embodiments described above, and are therefore omitted.

And in Example 6 of the decoration method of the magnesium alloy molded product of this invention, as shown in FIG. 6 in above-mentioned Example 1 thru | or Example 5, the chemical conversion treatment thin film Aa formed in the magnesium alloy molded product A is shown. intended to implement the process of printing or forming a hot stamped or transfer machining the thus printed layer 8 on the surface, in which letters, numbers, symbols, marks, printed decoration, or the like.

Next, in Example 7 of the method for decorating a magnesium alloy molded product of the present invention, printing or printing is performed on the upper surface of the single-layer or multilayer deposition film 3 as shown in FIG. it is to a process of forming a more printed layer 8 hot stamping or transfer machining.

Furthermore, in Example 8 of the method for decorating a magnesium alloy molded product of the present invention, printing or hot stamping on the upper surface of the top coat layer 5 as shown in FIG. in which the step of forming a more printed layer 8 to transfer machining.

Furthermore, in the ninth embodiment of the method for decorating a magnesium alloy molded product of the present invention, as shown in FIG. 6 in the first to fifth embodiments, the intermediate coating layer 7 or the second intermediate coating layer 7a is used. in which the step of forming a more printed layer 8 for printing on the upper surface or hot stamping or transfer machining.

  When the printing layer 8 is formed, the laser marking 5 is engraved at least immediately above the printing layer 8 so as to engrave the single layer or multilayer deposition film 3 and the tin or indium thin film 4 which are opaque members. Thus, the printed layer 9, the rainbow color, and the like are made visible from above.

  The method for decorating a magnesium alloy-formed product of the present invention is a method in which the above-described steps are sequentially performed, that is, a chemical conversion treatment thin film is formed on the surface of a magnesium alloy molded product, and a two-component curable urethane system is formed thereon Since the first undercoat layer using a resin coating is formed, the UV curable resin coating is applied to the topcoat layer in addition to improving and improving the functions such as adhesion, weather resistance, and corrosion resistance, which have been conventionally problems. Is used to improve wear resistance and can be suitably used for products that require design and wear resistance such as mobile products.

FIG. 1 is an explanatory diagram for explaining Example 1 of a method for decorating a magnesium alloy molded product according to the present invention. FIG. 2 is explanatory drawing for description of Example 2 of the decorating method of the magnesium alloy molded product of this invention. FIG. 3 is explanatory drawing for description of Example 3 of the decorating method of the magnesium alloy molded article of this invention. FIG. 4 is explanatory drawing for description of Example 4 of the decorating method of the magnesium alloy molded article of this invention. FIG. 5 is explanatory drawing for description of Example 5 of the decorating method of the magnesium alloy molded article of this invention. FIG. 6 is explanatory drawing for description of Example 6 of the decorating method of the magnesium alloy molded product of this invention. FIG. 7 is explanatory drawing for description of Example 7 of the decorating method of the magnesium alloy molded product of this invention. FIG. 8 is explanatory drawing for description of Example 8 of the decorating method of the magnesium alloy molded product of this invention. FIG. 9 is explanatory drawing for description of Example 9 of the decorating method of the magnesium alloy molded product of this invention.

A Magnesium alloy-formed product Aa Chemical conversion treated thin film 1 First undercoat layer 2 Second undercoat layer 3 Single-layer or multi-layer deposited film 4 Tin or indium thin film 5 Topcoat layer 6 Laser marking 7 Intermediate coat layer 7a Second Intermediate layer

Claims (9)

Forming a chemical conversion treatment film performs anodic electrolysis treatment with magnesium alloy molded product was impregnated few minutes to 1 hour to the processing liquid coating pretreatment chemical conversion treatment film or processing solution to the surface of the chemical conversion film Spray coating with a two-component curable urethane-based resin paint or a clear two-component curable urethane-based resin paint containing a bright material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer or A step of forming a first undercoat layer of 1 to 50 microns by dipping or spin- coating, and spraying or dipping or spin-coating a UV curable resin paint on the surface of the first undercoat layer Forming a second undercoat layer of 1 to 50 microns by means, and applying a metal to the upper surface of the second undercoat layer by vacuum evaporation or spa A step of forming a single-layer or multi-layer deposited film by a metal ring method, an ion plating method, a CVD method, or an electric beam type vacuum deposition method using a metal oxide or an oxide compound, and an upper surface of the single-layer or multi-layer deposited film forming a thin film of 500 angstroms or less of tin or indium film thickness measurement of the atomic force microscope by a tin or indium-tin alloy or indium filaments vacuum deposition or electric-beam or ion plating device or sputtering device A top coat layer of 1 to 50 microns is formed on the upper surface of the tin or indium thin film by means of applying a UV curable resin, a one-part acrylic urethane resin, a two-part acrylic urethane resin, or a two-part acrylic silicon resin. A magnesium compound characterized by comprising the steps of: Decorating method of molding. Forming a chemical conversion treatment film performs anodic electrolysis treatment with magnesium alloy molded product was impregnated few minutes to 1 hour to the processing liquid coating pretreatment chemical conversion treatment film or processing solution to the surface of the chemical conversion film Spray coating with a two-component curable urethane-based resin paint or a clear two-component curable urethane-based resin paint containing a bright material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer or A step of forming a first undercoat layer of 1 to 50 microns by dipping or spin- coating, and spraying or dipping or spin-coating a UV curable resin paint on the surface of the first undercoat layer Forming a second undercoat layer of 1 to 50 microns by means, and applying a metal to the upper surface of the second undercoat layer by vacuum evaporation or spa A step of forming a single-layer or multi-layer deposited film by a metal ring method, an ion plating method, a CVD method, or an electric beam type vacuum deposition method using a metal oxide or an oxide compound, and an upper surface of the single-layer or multi-layer deposited film forming a thin film of 500 angstroms or less of tin or indium film thickness measurement of the atomic force microscope by a tin or indium-tin alloy or indium filaments vacuum deposition or electric-beam or ion plating device or sputtering device , A step of laser marking from the upper surface of the tin or indium thin film and engraving the laser marking; and a UV curable resin or one-part acrylic urethane system from the upper surface of the tin or indium thin film engraved with the laser marking Resin or 2-component acrylic urethane resin or 2 Decorating method of the magnesium alloy molded product which comprises a step of forming a top coat layer of 1 to 50 microns by means of applying an acrylic silicone resin. Forming a chemical conversion treatment film performs anodic electrolysis treatment with magnesium alloy molded product was impregnated few minutes to 1 hour to the processing liquid coating pretreatment chemical conversion treatment film or processing solution to the surface of the chemical conversion film Spray coating with a two-component curable urethane-based resin paint or a clear two-component curable urethane-based resin paint containing a bright material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer or A step of forming a first undercoat layer of 1 to 50 microns by dipping or spin- coating, and spraying or dipping or spin-coating a UV curable resin paint on the surface of the first undercoat layer Forming a second undercoat layer of 1 to 50 microns by means, and applying a metal to the upper surface of the second undercoat layer by vacuum evaporation or spa A step of forming a single-layer or multi-layer deposited film by a metal ring method, an ion plating method, a CVD method, or an electric beam type vacuum deposition method using a metal oxide or an oxide compound, and an upper surface of the single-layer or multi-layer deposited film forming a thin film of 500 angstroms or less of tin or indium film thickness measurement of the atomic force microscope by a tin or indium-tin alloy or indium filaments vacuum deposition or electric-beam or ion plating device or sputtering device , A step of engraving laser marking from the top surface of the tin or indium thin film, and a UV curable resin or a one-component acrylic urethane system on the top surface of the tin or indium thin film engraved with the laser marking Resin or two-component acrylic urethane resin or two-component A step of forming an intermediate coating layer of 1 to 50 microns by means of applying a cryl silicone resin, and a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin or 2 on the upper surface of the intermediate coating layer And a step of forming a topcoat layer of 1 to 50 microns by means of applying a liquid acrylic silicon-based resin. Forming a chemical conversion treatment film performs anodic electrolysis treatment with magnesium alloy molded product was impregnated few minutes to 1 hour to the processing liquid coating pretreatment chemical conversion treatment film or processing solution to the surface of the chemical conversion film Spray coating with a two-component curable urethane-based resin paint or a clear two-component curable urethane-based resin paint containing a bright material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer or A step of forming a first subbing layer of 1 to 50 microns by dipping or spin coating, and spraying or dipping or spin coating a UV curable resin paint on the surface on which the first subbing layer has been formed . Forming a second undercoat layer of 1 to 50 microns by means of applying, and vacuum-depositing metal on the upper surface of the second undercoat layer Is a step of forming a single-layer or multi-layer deposited film by sputtering method, ion plating method, CVD method, or an electric beam type vacuum deposition method using a metal oxide or an oxide compound, and an upper surface of the single-layer or multi-layer deposited film. the Suzumata the step of forming the thin film of the following tin or indium 500 angstroms thickness measurement of an atomic force microscope by an indium-tin alloy or indium filaments vacuum deposition or electric-beam or ion plating device or sputtering device And an intermediate coating layer of 1 to 50 microns on the upper surface of the tin or indium thin film by means of applying a UV curable resin, a one-part acrylic urethane resin, a two-part acrylic urethane resin, or a two-part acrylic silicon resin. Forming a laser mark from the upper surface of the intermediate coating layer. A step of engraving laser markings, and a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based on the upper surface of the intermediate coating layer engraved with the laser marking And a step of forming a top coat layer of 1 to 50 microns by means of applying a resin. Forming a chemical conversion treatment film performs anodic electrolysis treatment with magnesium alloy molded product was impregnated few minutes to 1 hour to the processing liquid coating pretreatment chemical conversion treatment film or processing solution to the surface of the chemical conversion film Spray coating with a two-component curable urethane-based resin paint or a clear two-component curable urethane-based resin paint containing a bright material containing at least one of metallic mica, mica, and aluminum powder of a light reflective fine powder of a metal primer or A step of forming a first subbing layer of 1 to 50 microns by dipping or spin coating, and spraying or dipping or spin coating a UV curable resin paint on the surface on which the first subbing layer has been formed . Forming a second undercoat layer of 1 to 50 microns by means of applying, and vacuum-depositing metal on the upper surface of the second undercoat layer Is a step of forming a single-layer or multi-layer deposited film by sputtering method, ion plating method, CVD method, or an electric beam type vacuum deposition method using a metal oxide or an oxide compound, and an upper surface of the single-layer or multi-layer deposited film. the Suzumata the step of forming the thin film of the following tin or indium 500 angstroms thickness measurement of an atomic force microscope by an indium-tin alloy or indium filaments vacuum deposition or electric-beam or ion plating device or sputtering device And an intermediate coating layer of 1 to 50 microns on the upper surface of the tin or indium thin film by means of applying a UV curable resin, a one-part acrylic urethane resin, a two-part acrylic urethane resin, or a two-part acrylic silicon resin. Forming a laser mark from the upper surface of the intermediate coating layer. A step of engraving laser markings, and a UV curable resin, a one-component acrylic urethane-based resin, a two-component acrylic urethane-based resin, or a two-component acrylic silicon-based on the upper surface of the intermediate coating layer engraved with the laser marking A step of forming a second intermediate coating layer of 1 to 50 microns by means of applying a resin, and a UV curable resin, a one-component acrylic urethane-based resin, or a two-component acrylic urethane-based on the upper surface of the second intermediate coating layer And a step of forming a topcoat layer of 1 to 50 microns by means of applying a resin or a two-component acrylic silicon-based resin. Decorative magnesium alloy molded article according to any one of claims 1 to 5, characterized in that it comprises a step of forming a more printing layer in the printing or hot stamping or transfer machining the surface of the chemical conversion treatment film Method. Magnesium alloy molding according to any one of claims 1-5, characterized in that it comprises a step of forming a more printing layer in the printing or hot stamping or transfer machining the upper surface of the monolayer or multilayer vapor-deposited film How to decorate goods. Decorative magnesium alloy molded article according to any one of claims 1 to 5, characterized in that it comprises a step of forming a more printing layer in the printing or hot stamping or transfer machining the upper surface of the top coat layer Method. According to any one of claims 3-5, characterized in that it comprises a step of forming a more printing layer in the printing or hot stamping or transfer machining the upper surface in said coating layer or the second in coating layer A method of decorating magnesium alloy molded products.

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