Method for manufacturing an object with an antibacterial and antiviral coating and device therefor

Abstract

A method for manufacturing an article with an antibacterial and antiviral coating, comprising: providing an article; spraying a primer layer on the article by using an electrostatic spray gun, the primer layer comprising a primer and an inorganic additive with silver ions and inorganic glassy compounds, the content of the inorganic additive being 4wt%-7wt% based on the total weight of the primer layer being 100wt%; baking the article with the primer layer to dry the primer layer; spraying a varnish layer on the primer layer by using a hand spray gun, the varnish layer comprising a varnish and the inorganic additive, the content of the inorganic additive being 4wt%-7wt% based on the total weight of the varnish layer being 100wt%; and baking the article with the varnish layer to dry the varnish layer.

Description

Technical Field

[0001] This invention relates to a method and apparatus for manufacturing an object, and more particularly to a method and apparatus for manufacturing a door lock device with an antibacterial and antiviral coating. Background Technology

[0002] Door handles are one of the objects that people frequently touch in daily life. In public places, people touch door handles to open and close doors, which can easily leave bacteria or viruses on them. Bacteria left on an individual's hands can also be easily brought to the door handle at home. When a user touches a door handle with bacteria or viruses, and then touches their mouth or nose, it can easily cause an infection. Summary of the Invention

[0003] The purpose of this invention is to provide a method for manufacturing an object with an antibacterial and antiviral coating.

[0004] The present invention relates to a method for manufacturing an object having an antibacterial and antiviral coating, comprising providing the object.

[0005] The object is coated with a primer layer using an electrostatic spray gun. The primer layer includes a primer and an inorganic additive containing silver ions and an inorganic glassy compound. The content of the inorganic additive is between 4 wt% and 7 wt% based on a total weight of 100 wt% of the primer layer.

[0006] The object having the primer layer is baked to dry the primer layer.

[0007] A clear coat is sprayed onto the primer layer using a hand spray gun. The clear coat contains clear coat and inorganic additives. The content of the inorganic additives is between 4 wt% and 7 wt% based on a total weight of 100 wt% of the clear coat.

[0008] The object having the varnish layer is baked to dry the varnish layer.

[0009] Preferably, in the method for manufacturing an object with an antibacterial and antiviral coating according to the present invention, the object is a door lock assembly, the door lock assembly including a door lock housing and a handle disposed on the door lock housing.

[0010] Preferably, in the method for manufacturing an object with an antibacterial and antiviral coating according to the present invention, the electrostatic spray gun sprays the primer layer at a constant speed, and the spraying air pressure of the electrostatic spray gun is between 0.25 and 0.65 MPa.

[0011] Furthermore, another object of the present invention is to provide an object having an antibacterial and antiviral coating, which is made by the aforementioned method for manufacturing an object having an antibacterial and antiviral coating.

[0012] Preferably, the object with antibacterial and antiviral coating of the present invention is a door lock assembly, the door lock assembly including a door lock housing and a handle disposed on the door lock housing.

[0013] Preferably, in the article of the present invention, the article having an antibacterial and antiviral coating, wherein the inorganic glassy compound is selected from phosphate glassy compounds.

[0014] Preferably, in the object with antibacterial and antiviral coating of the present invention, the door lock assembly further includes a touch cover plate covering a portion of the door lock housing, the handle being spaced apart from the touch cover plate and including a grip member rotatably pivotally connected to the door lock housing, and an outer plate plate disposed on the grip member.

[0015] Preferably, in the object with antibacterial and antiviral coating of the present invention, the surfaces of the door lock housing, the touch cover, and the handle are covered with a coating unit, the coating unit including the primer layer and the clear coat layer.

[0016] Preferably, in the object with antibacterial and antiviral coating of the present invention, the door lock shell is made of metal or alloy, the touch cover is made of glass, the grip is made of metal or alloy, and the outer plate is made of plastic.

[0017] The beneficial effects of the present invention are as follows: by adding an inorganic additive containing silver ions and an inorganic glassy compound, and adjusting its content to be between 4 wt% and 7 wt%, not only can the primer layer and the varnish layer with the added inorganic additive achieve antibacterial and antiviral effects, but they can also adhere firmly to the object. Furthermore, the addition of the inorganic glassy compound prevents the primer layer and the varnish layer from fogging due to silver ions when they are applied to the object. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram illustrating an embodiment of the door lock device with an antibacterial and antiviral coating according to the present invention;

[0019] Figure 2 It is a sectional view diagram, for reference. Figure 1 This invention describes the coating unit of a door lock device with an antibacterial and antiviral coating. Detailed Implementation

[0020] Before the invention is described in detail, it should be noted that similar components are represented by the same numbers in the following description. Furthermore, it should be noted that the accompanying drawings are only for illustrating the structural and / or positional relationships between components and are not related to the actual dimensions of each component.

[0021] See Figure 1 and Figure 2 The embodiments of the objects with antibacterial and antiviral coatings of the present invention are illustrated using a door lock device as an example, but are not limited thereto.

[0022] The door lock device of this embodiment includes a door lock assembly 21 and a coating unit 22 covering the door lock assembly 21; wherein, the door lock device may be a conventional door lock device or an electronic lock device, etc.

[0023] Specifically, the door lock assembly 21 includes a door lock housing 211, a touch cover 212 covering a portion of the door lock housing 211, and a handle 213 spaced apart from the touch cover 212. The handle 213 includes a grip 214 rotatably pivotally connected to the door lock housing 211, and an outer plate 215 disposed on the grip 214 facing outwards from the door lock housing 211.

[0024] The door lock housing 211 may be made of metal or alloy, the touch cover 212 is made of glass, the grip 214 is made of metal or alloy, and the outer plate 215 is made of plastic. In this embodiment, the door lock housing 211 and the grip 214 are described as being made of alloy, and the periphery of the touch cover 212 is fixed to the door lock housing 211 by a plastic frame.

[0025] It should be noted that the lock mechanism installed inside the door lock housing 211, and other components such as the electronic control module located inside the door lock housing 211 corresponding to the position of the touch cover 212, are not the focus of this embodiment and will not be described in detail here.

[0026] The coating unit 22 covers the surfaces of the door lock housing 211, the touch cover 212, and the handle 213. Specifically, the coating unit 22 includes a primer layer 221 covering the surface of the door lock assembly 21, and a clear coat layer 222 covering the primer layer 221. In this embodiment, both the primer layer 221 and the clear coat layer 222 contain inorganic additives with antibacterial and antiviral properties. These inorganic additives include silver ions and inorganic glassy compounds; wherein the inorganic glassy compounds are selected from phosphate glassy compounds.

[0027] The primer layer 221 comprises a primer and the inorganic additive, and the content of the inorganic additive is between 4 wt% and 7 wt% based on a total weight of 100 wt% of the primer layer 221. The primer used in this embodiment is FP1850-BLACK (G16-15R) as an example.

[0028] The varnish layer 222 comprises varnish and inorganic additives. Based on a total weight of 100 wt% for the varnish layer, the content of the inorganic additives is between 4 wt% and 7 wt%. In this embodiment, the varnish is illustrated as a transparent varnish primarily composed of polymer resins.

[0029] By adjusting the content of the inorganic additive to be greater than 4 wt% and ensuring that the inorganic additive contains silver ions and inorganic glassy compounds, the inorganic additive can achieve sufficient antibacterial and antiviral effects in the primer layer 221 and the clear coat layer 222. Furthermore, keeping the content of the inorganic additive to be no more than 7 wt% helps the inorganic additive to dissolve effectively in the primer and the clear coat, and the inorganic glassy compounds can also prevent the fogging phenomenon caused by the addition of silver ions to the coating unit 22.

[0030] It is worth mentioning that the inorganic additives described in this invention use inorganic glassy compounds, which are combined with the varnish layer 222 to allow the coating unit 22 to adhere to the surface of the door lock device for a longer period of time and with greater durability. In addition to preventing the surface from fogging, the use of inorganic glassy compounds can also provide sustained antibacterial and antiviral effects. In contrast, although existing organic materials have better adhesion characteristics, they can only maintain their effect for about 6 months or even less, causing the entire device to lose its antibacterial effect.

[0031] The manufacturing method of the aforementioned door lock device with antibacterial and antiviral coating is described below.

[0032] First, before spraying the door lock assembly 21 to form the primer layer 221 on the door lock assembly 21, a pretreatment is performed, namely polishing the door lock assembly 21 and sandblasting its surface to enhance the overall surface adhesion, and then using ultrasonic waves with professional chemicals to remove surface stains.

[0033] Next, the inorganic additive containing silver ions and inorganic glassy compounds is added to the primer, wherein the content of the inorganic additive is between 4 wt% and 7 wt%, and the door lock assembly 21 is sprayed with an electrostatic spray gun to form the primer layer 221 on the door lock assembly 21.

[0034] In this embodiment, when spraying the primer layer 221, the electrostatic spray gun is moved at a constant speed, and the spraying air pressure range of the electrostatic spray gun is set between 0.25 and 0.65 MPa. Preferably, in this embodiment, it is implemented at 0.35 ± 0.1 MPa. By setting the spraying air pressure range and ensuring that the content of the inorganic additive is between 4 wt% and 7 wt%, the primer layer 221 can be uniformly and firmly adhered to the door lock assembly 21, achieving antibacterial and antiviral effects.

[0035] Next, the door lock assembly 21 with the primer layer 221 is placed in an oven and baked at 150°C for 80 minutes to dry the primer layer 221.

[0036] Finally, a clear coat 222 is sprayed onto the door lock assembly 21 having the primer layer 221 using a hand spray gun with a spraying air pressure range of 0.35 to 0.65 MPa. The clear coat 222 contains clear coat and inorganic additives. Based on the total weight of the clear coat 100 wt%, the content of the inorganic additives is also between 4 wt% and 7 wt%.

[0037] It should be noted that, depending on the situation and application, a surface paint layer can be sprayed onto the primer layer 221. In this embodiment, when spraying the surface paint layer onto the primer layer 221, a hand spray gun with a spraying air pressure range of 0.35–0.65 MPa is used. After spraying the surface paint, it is then baked at 110°C for 75 minutes. Figure 2 The illustrated embodiment is based on the example of the coating unit 22 having the primer layer 221 and the clear coat layer 222.

[0038] After the clear coat 222 is applied, the door lock assembly 21, which has the primer layer 221 and the clear coat 222, is placed in an oven and baked at 110°C for 75 minutes to dry the clear coat 222. It should be noted that the aforementioned method for producing the antibacterial and antiviral coating is not limited to application to door lock devices. As long as the primer layer 211 can be applied to an object, the clear coat 22 can be subsequently applied. Therefore, this coating technology can also be applied to various objects that require paint coating, such as metals and plastics.

[0039] In summary, the method and apparatus for manufacturing a door lock device with an antibacterial and antiviral coating of the present invention, by adding an inorganic additive containing silver ions and an inorganic glassy compound, and adjusting its content to between 4 wt% and 7 wt%, not only enables the coating unit 22 with the added inorganic additive to achieve antibacterial and antiviral effects, but also, in conjunction with the setting of the spraying parameters, allows it to adhere firmly to the door lock assembly. Furthermore, the addition of the inorganic glassy compound prevents the primer layer and the clear coat layer from fogging due to silver ions when applied to the door lock assembly, thus effectively achieving the purpose of the present invention.

Claims

1. A method for manufacturing an object with an antibacterial and antiviral coating, characterized in that: Include: Provide items; An electrostatic spray gun is used to apply a primer layer to the object. The primer layer includes a primer and an inorganic additive containing silver ions and an inorganic glassy compound. The inorganic glassy compound is selected from phosphate glassy compounds. Based on a total weight of 100 wt% of the primer layer, the content of the inorganic additive is between 4 wt% and 7 wt%. The object having the primer layer is baked to dry the primer layer; A clear coat is sprayed onto the primer layer using a hand spray gun. The clear coat comprises a clear coat and the inorganic additives. Based on a total weight of 100 wt% of the clear coat, the content of the inorganic additives is between 4 wt% and 7 wt%. The object having the varnish layer is baked to dry the varnish layer.

2. The method for manufacturing an object with an antibacterial and antiviral coating according to claim 1, characterized in that: The object is a door lock assembly, which includes a door lock housing and a handle disposed on the door lock housing.

3. The method for manufacturing an object with an antibacterial and antiviral coating according to claim 2, characterized in that: The electrostatic spray gun moves at a constant speed to spray the primer layer, and the spraying air pressure of the electrostatic spray gun is between 0.25 MPa and 0.65 MPa.

4. An object with an antibacterial and antiviral coating, characterized in that: The object with the antibacterial and antiviral coating is made by the method of making an object with the antibacterial and antiviral coating according to claim 1.

5. The object with an antibacterial and antiviral coating according to claim 4, characterized in that: The object is a door lock assembly, which includes a door lock housing and a handle disposed on the door lock housing.

6. The article with an antibacterial and antiviral coating according to claim 5, characterized in that: The door lock assembly also includes a touch cover plate covering a portion of the door lock housing, the handle being spaced apart from the touch cover plate and including a grip member rotatably pivotally connected to the door lock housing, and an outer plate disposed on the grip member.

7. The article with an antibacterial and antiviral coating according to claim 6, characterized in that: The door lock housing, the touch cover, and the handle are covered with a coating unit, which includes the primer layer and the clear coat layer.

8. The article with an antibacterial and antiviral coating according to claim 6, characterized in that: The door lock housing is made of metal or alloy, the touch cover is made of glass, the grip is made of metal or alloy, and the outer panel is made of plastic.

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