TW201326438A - Coated article and method for making the same - Google Patents

Abstract

A coated article having enamel texture is provided, which includes a substrate, a transparent layer formed on the surface of the substrate, a first color layer formed on the surface of the transparent layer, a first resin layer formed on the surface of the first color layer, a second color layer formed on partial surface of the first resin layer, and a second resin layer formed on the surface of the first resin layer and the second color layer. The surface of coated article is smooth and glossy, and has a enamel texture. The coated article has high strength. A method for making the coated article is also provided.

Description

Coating member and preparation method thereof

The invention relates to a coating material and a preparation method thereof, in particular to a coating material with a glazed surface and a preparation method thereof.

Glaze porcelain is generally sintered on the surface of the body of citrate. The glaze makes the surface of the ceramic smooth and delicate, and moisturizes like jade. However, the ceramic products themselves are light, brittle and fragile, and are easily broken and damaged.

The various film layers prepared by the physical vapor deposition technique (PVD) on the metal surface usually exhibit a metallic texture, and it is difficult to prepare a PVD film layer having a glaze texture.

In view of this, it is necessary to provide a coated member having a glazed texture on the surface.

In addition, it is also necessary to provide a method of preparing the above-mentioned coated member.

A coated member comprising a substrate, a transparent layer formed on a surface of the substrate, a first color layer formed on a surface of the transparent layer, a first resin layer formed on a surface of the first color layer, and a surface formed on a portion of the first resin layer a second color layer, and a second resin layer formed on the surface of the second color layer and the first resin layer; the transparent layer is a layer of aluminum oxynitride or hafnium oxynitride, and the first color layer and the second color layer are titanium a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one of chromium, zinc and aluminum, the first resin layer and the second resin layer being transparent resin layers.

A method for preparing a coated member, comprising the steps of:

Providing a substrate;

Forming a transparent layer on the surface of the substrate, the transparent layer being an aluminum oxynitride or a lanthanum oxynitride layer;

Forming a first color layer on a surface of the transparent layer, the first color layer being a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one of titanium, chromium, zinc and aluminum;

Forming a first resin layer on a surface of the first color layer, the first resin layer being a transparent resin layer;

Forming a masking area on the surface of the first resin layer by means of exposure development technology or tape shielding;

Forming a second color layer on the surface of the first resin layer on which the masking region is formed, the method of forming the second color layer is the same as the method of forming the first color layer, and the second color layer is in titanium, chromium, zinc, and aluminum. a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one metal;

Removing tape or masking ink on the masking area;

A second resin layer is sprayed on the surface of the second color layer and the surface of the first resin layer not covered by the second color, the second resin layer being a transparent resin layer.

In the present invention, a transparent layer, a first color layer, a transparent first resin layer, a second color layer and a transparent second resin layer are sequentially formed on the surface of the substrate, and the coating is not only made by the combined action of the five layers. The surface of the piece is smooth and moist, giving a glazed texture; it also gives the surface of the coated part a beautiful pattern effect. In addition, the coated member has high strength, unlike the ceramic article, which is light and brittle; and the coating of the coated member is firmly adhered.

Referring to FIG. 1 , a coated member 10 according to a preferred embodiment of the present invention includes a substrate 11 , a primer layer 12 formed on the surface of the substrate 11 , a transparent layer 13 formed on the surface of the primer layer 12 , and a surface formed on the surface of the transparent layer 13 . a first color layer 14, a first resin layer 15 formed on a surface of the first color layer 14, a second color layer 16 formed on a surface of a portion of the first resin layer 15, and a second color layer 16 and a first resin layer 15 The second resin layer 17 of the surface.

The material of the substrate 11 is preferably stainless steel, aluminum alloy or magnesium alloy, but is not limited to the above materials.

The underlayer 12 is a tantalum layer or an aluminum layer having a thickness of 50-200 nm. The primer layer 12 is used to increase the bonding force between the substrate 11 and the transparent layer 13.

The transparent layer 13 is an aluminum oxynitride or hafnium oxynitride layer having a thickness of 600 to 800 nm. The transparent layer 13 is polished to increase the gloss of the first color layer 14 formed on its surface.

The first color layer 14 is a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one of titanium, chromium, zinc and aluminum. The color of the first color layer 14 may be black, silver, gold, blue, or the like. The first color layer 14 has a thickness of 500 to 800 nm.

The first resin layer 15 is a transparent, high-gloss resin layer, and its main component is a polyethylene resin having a thickness of 3-5 μm.

The second color layer 16 can be discontinuous and the second color layer 16 forms a certain pattern effect. The second color layer 16 is a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one of titanium, chromium, zinc and aluminum. The material of the second color layer 16 may be the same as or different from the first color layer 14 , and the color thereof may be the same as or different from the first color layer 14 . The second color layer 16 has a thickness of 500 to 800 nm.

The second resin layer 17 is formed on the surface of the second color layer 16 and the surface of the first resin layer 15 that is not shielded by the second color layer 16. The material of the second resin layer 17 is the same as that of the first resin layer 15. The second resin layer 17 has a thickness of 3-5 μm. The second resin layer 17 can serve not only as the outermost protective layer but also as an anti-fingerprint effect because of its low surface.

The surface of the coated member 10 is smooth and moist, and the texture is like glaze, which is not only bright in color, but also has an beautiful pattern effect. In addition, the coated member 10 also has a high strength, unlike ceramic articles which are light and brittle. The coated member 10 can be used as an outer casing of an electronic device such as a mobile phone or an MP3.

Referring to FIG. 2, a vacuum coater 20 is provided. The vacuum coater 20 includes a coating chamber 21 and a vacuum pump 30 connected to the coating chamber 21. The vacuum pump 30 is used to evacuate the coating chamber 21. A rotating frame (not shown), a first target 23, and a second target 24 are provided in the coating chamber 21. The turret drives the substrate 11 to revolve along a circular trajectory 25, and the substrate 11 also rotates as it revolves along the trajectory 25. The material of the first target 23 may be aluminum or tantalum, and the material of the second target 24 may be aluminum, zinc, titanium or chromium.

A method for preparing a coated member 10 according to a preferred embodiment of the present invention includes the following steps:

(1) The substrate 11 is provided. The material of the substrate 11 is preferably stainless steel, aluminum alloy or magnesium alloy, but is not limited to the above materials.

(2) The substrate 11 is subjected to surface pretreatment. The surface pretreatment may include a conventional step of ultrasonically washing and drying the substrate 11 with absolute ethanol.

(3) A primer layer 12 is formed on the surface of the substrate 11, and the primer layer 12 is a layer of tantalum or aluminum. The substrate 11 is placed on the turret of the vacuum coater 20, the coating chamber 21 is closed, the coating chamber 21 is evacuated to 3.0 × 10 ^-5 Torr, and the temperature of the substrate 11 is controlled to be 20-200 ° C. A target 23, the power of the first target 23 is set to 5-8 Kw, and the working gas argon gas is introduced, and the flow rate of the argon gas is 100-300 standard milliliters per minute (sccm), and the bias applied to the substrate 11 is applied. For (-100)-(-300)V, the coating time is 10-30 min. The underlayer 12 has a thickness of 50 to 200 nm.

(4) The transparent layer 13 is continuously formed on the surface of the underlayer 12, and the transparent layer 13 is an aluminum oxynitride or a hafnium oxynitride layer. The first target 23 is continuously used, the power of the first target 23, the bias of the substrate 11, and the flow rate of the argon gas are kept constant, and at the same time, the reaction gas oxygen and nitrogen are introduced into the coating chamber 21, and the flow rate of oxygen is 50. -200 sccm, the flow rate of nitrogen is 80-300 sccm, and the coating time is 15-35 min. The transparent layer 13 has a thickness of 600 to 800 nm.

(5) The first target 23 is closed, the gas is turned off, the sample is taken out by vacuum, and the substrate 11 on which the underlayer 12 and the transparent layer 13 are plated is subjected to a polishing treatment, ultrasonic cleaning, drying, and the like. The polished transparent layer enhances the gloss of the first color 14 layer subsequently plated on its surface.

(6) continuing to form a first color layer 14 on the surface of the polished transparent layer 13, which may be a carbide, a nitride, or a carbonitride of at least one of titanium, chromium, zinc, and aluminum. , nitrogen oxides or carbon oxides. The color of the first color layer 14 may be black, silver, gold, blue, or the like. The substrate 11 is placed on the turret of the vacuum coater 20, the coating chamber 21 is closed, the coating chamber 21 is evacuated to 3.0 × 10 ^-5 Torr, and the temperature of the substrate 11 is controlled to be 20-200 ° C. The second target 24, the power of the second target 24 is set to 8-10 Kw, the working gas argon gas is introduced, the flow rate of the argon gas is 100-300 sccm, and the reaction gas is introduced, and the reaction gas may be acetylene, nitrogen, and oxygen. One or more kinds of the reaction gas may be adjusted in accordance with the color, and the bias voltage applied to the substrate 11 is (-100) - (-300) V, and the coating time is 30 - 45 min. The first color layer 14 has a thickness of 500 to 800 nm.

(7) The first target 23 is closed, the gas is turned off, the sample is taken out by vacuum, and the first resin layer 15 is sprayed on the surface of the first color layer 14. The first resin layer 15 is a polyethylene resin layer having a thickness of 3-5 μm.

(8) A masking region is formed on the surface of the first resin layer 15 by exposure development technique or tape masking.

(9) The second color layer 16 is formed on the surface of the first resin layer 15 on which the masking region is formed. The method is as described in the above step (6). The second color layer 16 is a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one of titanium, chromium, zinc and aluminum. The material of the second color layer 16 may be the same as or different from the first color layer 14. Since the sputtered particles are bombarded into the first resin layer 15 to soften during the sputtering of the second color layer 16, after the second color layer 16 is sputtered, the product is placed in the air for several hours to make A resin layer 15 is cured.

(10) Remove the tape or mask the ink on the masking area.

(11) The excess second color layer 16 is removed using a laser engraving technique to further form a fine LOGO pattern. Since the shading in step (8) cannot guarantee the accuracy, laser engraving technology is required to ensure the accuracy of the LOGO pattern.

(12) A second resin layer 17 is sprayed on the surfaces of the first resin layer 15 and the second color layer 16 with reference to the step (7). The material of the second resin layer 17 is the same as that of the first resin layer 15.

The present invention sequentially forms a polished transparent layer 13, a first color layer 14, a transparent first resin layer 15, a second color layer 16, and a transparent second resin layer 17 on the surface of the substrate 11, by the five layers The comprehensive action not only makes the surface of the coated member 10 smooth and moist, but also presents a glaze-like texture; and the surface of the coated member 10 can also exhibit an aesthetically pleasing pattern effect. In addition, the coated member 10 has a high strength, unlike the ceramic article, which is light and brittle; and the film of the coated member 10 is firmly adhered.

The invention will now be specifically described by way of examples.

Example 1

The vacuum coater 20 used in this embodiment is an intermediate frequency magnetron sputtering coater.

The material of the substrate 11 used in the present embodiment is an aluminum alloy.

Sputtering primer 12: using an aluminum target, the power of the aluminum target is 8kw, the flow rate of argon gas is 200sccm, the bias voltage of the substrate 11 is -100V, the temperature of the substrate 11 is 100 ° C, and the coating time is 10 min; The underlayer 12 is an aluminum layer having a thickness of 65 nm.

Sputtering the transparent layer 13: continuing to use the aluminum target, maintaining the power of the aluminum target, the flow rate of the argon gas, the bias applied to the substrate, the temperature of the substrate 11, and the reaction gas oxygen and nitrogen are introduced, and the flow rate of the oxygen is 50 sccm, a flow rate of nitrogen gas of 80 sccm, and a coating time of 35 min; the transparent layer 13 is an aluminum oxynitride layer having a thickness of 600 nm.

The aluminum target is turned off, the gas is turned off, the sample is taken out by vacuum, and the substrate 11 coated with the transparent layer 13 on the surface is subjected to a hand-polishing treatment to brighten the surface of the transparent layer 13, and then ultrasonic cleaning, drying, and the like are performed.

Sputtering the first color layer 14: using a titanium target, the power of the titanium target is 10 kW, the flow rate of argon gas is 300 sccm, the bias voltage of the substrate 11 is -100 V, the temperature of the substrate 11 is 100 ° C, and the reaction gas is introduced into the nitrogen gas. The flow rate of the reaction gas nitrogen gas was 100 sccm, and the coating time was 30 min; the first color layer 14 was a titanium nitride layer having a thickness of 750 nm.

The first resin layer 15 was sprayed: a polyethylene resin was sprayed on the surface of the first color layer 14, and the thickness of the first resin layer 15 was 3 μm.

A masking ink region is formed on the surface of the first resin layer 15 by exposure development.

Sputtering the second color layer 16: a method of sputtering the first color layer 14 with a coating time of 30 min; the second color layer 16 is also a titanium nitride layer having a thickness of 750 nm.

The masking ink is removed and the excess second color layer 16 is sculpted using laser engraving techniques to further form a fine LOGO pattern.

Spraying the second resin layer 17: a method of spraying the first resin layer 15, the second resin layer 17 having a thickness of 3 μm. The material of the second resin layer 17 is the same as that of the first resin layer 15.

Example 2

The vacuum coater 20 used in this embodiment is an intermediate frequency magnetron sputtering coater.

The material of the substrate 11 used in the present embodiment is stainless steel.

Sputtering primer layer 12: using a ruthenium target, the power of the ruthenium target is 5kw, the flow rate of argon gas is 200sccm, the bias voltage of the substrate 11 is -100V, the temperature of the substrate 11 is 100 ° C, and the coating time is 25 min; The bottom layer 12 is a tantalum layer having a thickness of 80 nm.

Sputtering transparent layer 13: continue to use the ruthenium target, maintain the power of the ruthenium target, the flow rate of argon gas, the bias voltage applied to the substrate, the temperature of the substrate 11, and the reaction gas oxygen and nitrogen are introduced, and the flow rate of oxygen is 50 sccm, a flow rate of nitrogen gas of 80 sccm, and a coating time of 35 min; the transparent layer 13 is a ruthenium oxynitride layer having a thickness of 600 nm.

The target is closed, the gas is turned off, the sample is taken out by vacuum, and the substrate 11 coated with the underlayer 12 and the transparent layer 13 is subjected to a hand-polishing treatment to brighten the surface of the transparent layer 13, and then ultrasonic cleaning and drying are performed. .

Sputtering the first color layer 14: using a chromium target, the power of the chromium target is 10 kW, the flow rate of argon gas is 300 sccm, the bias voltage of the substrate 11 is -100 V, the temperature of the substrate 11 is 100 ° C, and the reaction gas is introduced into the nitrogen gas. The flow rate of the reaction gas nitrogen gas was 100 sccm, and the plating time was 30 min; the first color layer 14 was a chromium nitride layer having a thickness of 750 nm.

The first resin layer 15 was sprayed: a polyethylene resin was sprayed on the surface of the first color layer 14, and the thickness of the first resin layer 15 was 3 μm.

A masking tape region is formed on the surface of the first resin layer 15 by a tape masking method.

Sputtering the second color layer 16: a method of sputtering the first color layer 14 with a coating time of 30 min; the second color layer 16 is a chromium nitride layer having a thickness of 750 nm.

The masking tape is removed and the excess second color layer 16 is engraved using laser engraving techniques to further form a fine LOGO pattern.

Spraying the second resin layer 17: a method of spraying the first resin layer 15, the second resin layer 17 having a thickness of 3 μm. The material of the second resin layer 17 is the same as that of the first resin layer 15.

The present invention sequentially forms a polished transparent layer 13, a first color layer 14, a transparent first resin layer 15, a second color layer 16, and a transparent second resin layer 17 on the surface of the substrate 11, by the five layers The comprehensive action not only makes the surface of the coated member 10 smooth and moist, but also presents a glaze-like texture; and the surface of the coated member 10 can also exhibit an aesthetically pleasing pattern effect. In addition, the coated member 10 has a high strength, unlike the ceramic article, which is light and brittle; and the film of the coated member 10 is firmly adhered.

10. . . Coated parts

11. . . Substrate

12. . . Playing the bottom layer

13. . . Transparent layer

14. . . First color layer

15. . . First resin layer

16. . . Second color layer

17. . . Second resin layer

20. . . Vacuum coating machine

twenty one. . . Coating chamber

twenty three. . . First target

twenty four. . . Second target

25. . . Trajectory

30. . . Vacuum pump

1 is a cross-sectional view of a coated member according to a preferred embodiment of the present invention;

2 is a top plan view of a vacuum coater according to a preferred embodiment of the present invention.

10. . . Coated parts

11. . . Substrate

12. . . Playing the bottom layer

13. . . Transparent layer

14. . . First color layer

15. . . First resin layer

16. . . Second color layer

17. . . Second resin layer

Claims (16)

A coated member comprising a substrate, wherein the coated member further comprises a transparent layer formed on a surface of the substrate, a first color layer formed on a surface of the transparent layer, and a first resin layer formed on a surface of the first color layer a second color layer formed on a surface of the first resin layer portion, and a second resin layer formed on the surface of the second color layer and the first resin layer; the transparent layer being a layer of aluminum oxynitride or hafnium oxynitride, the first The color layer and the second color layer are carbides, nitrides, carbonitrides, oxynitrides or carbon oxides of at least one of titanium, chromium, zinc and aluminum, both of the first resin layer and the second resin layer It is a transparent resin layer. The coated article according to claim 1, wherein the first resin layer and the second resin layer are both polyethylene resin layers. The coated article of claim 1, wherein the transparent layer is polished, and the transparent layer has a thickness of 600-800 nm. The coated article of claim 1, wherein the first color layer has a thickness of 500-800 nm. The coated article according to claim 1, wherein the first resin layer has a thickness of 3-5 μm. The coated article of claim 1, wherein the second color layer has a thickness of 500-800 nm. The coated article according to claim 1, wherein the second resin layer has a thickness of 3-5 μm. The coated article according to claim 1, wherein the substrate is made of stainless steel, aluminum alloy or magnesium alloy. The coated article of claim 1, wherein the coated member further comprises a primer layer formed between the substrate and the transparent layer. The coated article of claim 9, wherein the underlayer is a ruthenium layer or an aluminum layer, and the underlayer has a thickness of 50-200 nm. A method for preparing a coated member, comprising the steps of:
Providing a substrate;
Forming a transparent layer on the surface of the substrate, the transparent layer being an aluminum oxynitride or a lanthanum oxynitride layer;
Forming a first color layer on a surface of the transparent layer, the first color layer being a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one of titanium, chromium, zinc and aluminum;
Forming a first resin layer on a surface of the first color layer, the first resin layer being a transparent resin layer;
Forming a masking area on the surface of the first resin layer by means of exposure development technology or tape shielding;
Forming a second color layer on the surface of the first resin layer on which the masking region is formed, the method of forming the second color layer is the same as the method of forming the first color layer, and the second color layer is in titanium, chromium, zinc, and aluminum. a carbide, a nitride, a carbonitride, an oxynitride or a carbon oxide of at least one metal;
Removing tape or masking ink on the masking area;
A second resin layer is sprayed on the surface of the second color layer and the surface of the first resin layer not covered by the second color, the second resin layer being a transparent resin layer. The method for preparing a coated member according to claim 11, wherein the transparent layer is formed by using a magnetron sputtering method, using an aluminum target or a germanium target, and controlling the temperature of the substrate to be 20-200 ° C. The power of the aluminum target or the target is 5-8Kw, the working gas is argon gas, the flow rate of argon gas is 100-300sccm, the oxygen and nitrogen are used as the reaction gas, the flow rate of oxygen is 50-200sccm, and the flow rate of nitrogen gas is 80-300 sccm, a bias voltage applied to the substrate was (-100)-(-300) V, and a coating time was 15-35 min; then the film formed by sputtering was polished. The method for preparing a coated member according to claim 11, wherein the method of forming the first color layer and the second color layer is: using a magnetron sputtering method, using a second target, the second target For the aluminum target, the zinc target, the titanium target or the chromium target, the power of the second target is 8-10 Kw, the working gas is argon gas, the flow rate of the argon gas is 100-300 sccm, and the reaction gas is acetylene, nitrogen and oxygen. One or more of them are applied to the substrate 11 at a bias voltage of (-100) - (-300) V and a coating time of 30 - 45 min. The method of preparing a coated member according to claim 11, wherein the method further comprises forming a primer layer on the surface of the substrate before the transparent layer is formed, the primer layer being disposed between the transparent layer and the transparent layer. The method for preparing a coated member according to claim 14, wherein the method for forming the underlayer is: using a magnetron sputtering method, using an aluminum target or a germanium target, and controlling the temperature of the substrate to be 20-200 ° C. The power of the aluminum target or the target is 5-8Kw, the working gas is argon gas, the flow rate of argon gas is 100-300sccm, and the bias voltage applied to the substrate is (-100)-(-300)V, coating The time is 10-30min. The method for preparing a coated member according to claim 11, wherein the first resin layer and the second resin layer are both polyethylene resin layers, and both are formed by spraying.