Silver powder printing metal wiredrawing film-coated plate

Abstract

The utility model relates to the technical field of production and use of color-coated sheets of shells of household electrical appliances and building wallboards, in particular to a silver powder printed metal wiredrawing film-coated sheet, which comprises a steel plate, a primer layer, a metal wiredrawing PET (polyethylene terephthalate) film and a back paint layer, when the steel plate is used as a decorative panel, the outward surface of the steel plate is an outer surface, and the inward surface of the steel plate is an inner surface; the primer layer is arranged on the outer surface of the steel plate in a roller coating mode, the metal wiredrawing PET film is pressed on the primer layer through a pressing roller, silver powder printed metal wiredrawing lines are arranged in the metal wiredrawing PET film, and the back paint layer is arranged on the inner surface of the steel plate in a roller coating mode. The problem that an existing surface wiredrawing color-coated sheet is poor in corrosion resistance after a PET film is damaged is effectively solved. According to the utility model, the metal wiredrawing lines printed by the silver powder are adopted to replace the original aluminizing wiredrawing technology, the silver powder printing thickness of the PET film printed by the silver powder is far greater than the thickness of an aluminizing layer plated by a vacuum aluminizing technology, and the PET film can provide higher salt spray resistance after being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of production and use of color-coated plates for housings of household appliances and building wallboards, and in particular to a silver powder printed metal wire drawing coated plate. Background Art

[0002] The coated steel plates with imitation stainless steel brushed effect used in the color-coated panels of high-end home appliances on the market today are achieved by vacuum aluminum plating on the back of the PET film. However, when vacuum-plating the PET film in the existing vacuum aluminum plating process, the aluminum layer on the back of the PET film is extremely thin, generally with a thickness of 20-500nm. Once the PET film on the surface of the steel plate is damaged by collision during stamping or transportation, the aluminum layer under the PET film is very susceptible to corrosion, which will destroy the imitation stainless steel brushed effect. At the same time, since the aluminum layer is relatively thin, it will directly cause rust on the steel plate after the aluminum layer corrodes to a certain extent, which will further damage the aesthetics of the color-coated panel on the one hand, and seriously affect the service life of the color-coated panel of high-end home appliances on the other hand. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a silver powder printed metal brushed laminated plate, which effectively solves the problem that the existing surface brushed color coated plate has poor corrosion resistance after the PET film is damaged.

[0004] The technical solution solved by the utility model is a silver powder printed metal brushed coated plate, comprising a steel plate, a primer layer, a metal brushed PET film and a back paint layer. When the steel plate is used as a decorative panel, the outward side of the steel plate is the outer surface, and the inward side of the steel plate is the inner surface. The primer layer is roller-coated on the outer surface of the steel plate, and the metal brushed PET film is pressed on the primer layer by a pressure roller. The metal brushed PET film is provided with silver powder printed metal brushed patterns, and the back paint layer is roller-coated on the inner surface of the steel plate.

[0005] Preferably, it further comprises a chemical treatment layer, wherein the chemical treatment layer is formed on the outer surface and the inner surface of the steel plate, and the primer layer and the back paint layer are both roll-coated on the chemical treatment layer.

[0006] Preferably, the thickness of the chemical treatment layer is 1-2 μm.

[0007] Preferably, the thickness of the primer layer is 6-8 μm, and the thickness of the back paint layer is 3-5 μm.

[0008] Preferably, it further comprises a PE film, wherein the PE film is attached to the metal brushed PET film, and the PE film is transparent.

[0009] Preferably, the thickness of the metal brushed PET film is 25-35 μm.

[0010] The beneficial effects of the utility model are:

[0011] The utility model adopts metal brushed patterns printed with silver powder to replace the original aluminum-plated wire drawing technology. Compared with the original aluminum-plated wire drawing technology, the corrosion resistance of silver in the PET film after silver powder printing is higher than that of aluminum. On the other hand, the thickness of the silver powder printing is much greater than the thickness of the aluminum layer in the vacuum aluminum-plating process. Therefore, after the PET film is damaged, it can provide higher salt spray resistance. Therefore, it can solve the problem of weak corrosion resistance of traditional metal brushed color steel plates when used on household appliance shell materials, and can greatly improve the service life of household appliance color-coated panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the layered three-dimensional structure of the utility model;

[0013] Figure 2 It is a cut-away cross-sectional schematic diagram of the utility model;

[0014] In the figure, 1-steel plate; 2-primer layer; 3-metal brushed PET film; 4-back paint layer; 5-chemical treatment layer; 6-PE film. DETAILED DESCRIPTION

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0016] Depend on Figure 1 to Figure 2 Provided is a silver powder printed metal brushed laminate, comprising a steel plate 1, a primer layer 2, a metal brushed PET film 3 and a back paint layer 4, wherein the primer layer 2 provides an attachment point for the metal brushed PET film 3, and under the action of the primer layer 2, the metal brushed PET film 3 can be better bonded to the steel plate 1, and the primer layer 2 can be made of polyester paint or polyurethane paint or a composite paint of polyester and polyurethane paint.

[0017] When the steel plate 1 is used as a decorative panel, the outward side of the steel plate 1 is the outer surface, and the inward side of the steel plate 1 is the inner surface. The primer layer 2 is roller-coated on the outer surface of the steel plate 1. After the primer layer 2 is roller-coated, it needs to be baked in an oven, wherein the baking temperature of the board surface is 210-216°C;

[0018] The metal brushed PET film 3 is pressed on the primer layer 2 by a pressure roller, wherein the pressing force of the pressure roller is 3-10Kg. The metal brushed PET film 3 is provided with a silver powder printed metal brushed pattern, and the silver powder printed metal brushed pattern is used to replace the aluminum-plated wire drawing technology. On the one hand, the salt spray resistance of the metal brushed products is increased, and on the other hand, the silver powder is more beautiful than the aluminum-plated technology;

[0019] The back paint layer 4 is roller-coated on the inner surface of the steel plate 1. The back paint layer 4 adopts epoxy paint, polyester paint or silicon compound paint. The paint used for the back paint layer 4 can be colored or transparent.

[0020] It also includes a chemical treatment layer 5 coated between the primer layer 2 or the back paint layer 4 and the steel plate 1. The chemical treatment layer 5 adopts a water-based chromium-free coating liquid. After the coating liquid is dried, the primer layer 2 or the back paint layer 4 is coated on the outer surface or inner surface of the steel plate 1. The chemical treatment layer 5 is used to make the primer layer 2 or the back paint layer 4 better bond with the steel plate 1 on the one hand, and to increase the corrosion resistance of the steel plate 1 on the other hand, thereby increasing the service life of the steel plate 1.

[0021] It also includes a PE film 6 applied on the metal brushed PET film 3. The PE film 6 is applied on the metal brushed PET film 3 to protect the metal brushed PET film 3 so that the metal brushed PET film 3 can be protected during transportation and transfer. The PE film 6 is transparent and can be peeled off during use or kept at all times.

[0022] The utility model adopts metal brushed patterns printed with silver powder to replace the original aluminum-plated wire drawing technology. Compared with the original aluminum-plated wire drawing technology, the corrosion resistance of silver in the PET film after silver powder printing is higher than that of aluminum. On the other hand, the thickness of the silver powder printing is much greater than the thickness of the aluminum layer in the vacuum aluminum-plating process. Therefore, after the PET film is damaged, it can provide higher salt spray resistance. Therefore, it can solve the problem of weak corrosion resistance of traditional metal brushed color steel plates when used on household appliance shell materials, and can greatly improve the service life of household appliance color-coated panels.

Claims

1. A silver powder printed metal brushed laminate, characterized in that: The invention comprises a steel plate (1), a primer layer (2), a metal brushed PET film (3) and a back paint layer (4). When the steel plate (1) is used as a decorative panel, the outward side of the steel plate (1) is the outer surface, and the inward side of the steel plate (1) is the inner surface. The primer layer (2) is roller-coated on the outer surface of the steel plate (1), and the metal brushed PET film (3) is pressed onto the primer layer (2) by a pressure roller. The metal brushed PET film (3) is provided with a silver powder-printed metal brushed pattern. The back paint layer (4) is roller-coated on the inner surface of the steel plate (1).

2. The silver powder printed metal brushed laminate according to claim 1, characterized in that: It also includes a chemical treatment layer (5), which is formed on the outer surface and the inner surface of the steel plate (1), and the primer layer (2) and the back paint layer (4) are both roll-coated on the chemical treatment layer (5).

3. The silver powder printed metal brushed laminate according to claim 2, characterized in that: The thickness of the chemical treatment layer (5) is 1-2 μm.

4. The silver powder printed metal brushed laminate according to claim 1, characterized in that: The thickness of the primer layer (2) is 6-8 μm, and the thickness of the back paint layer (4) is 3-5 μm.

5. The silver powder printed metal brushed laminate according to claim 1, characterized in that: It also comprises a PE film (6), wherein the PE film (6) is attached to the metal brushed PET film (3), and the PE film (6) is transparent.

6. The silver powder printed metal brushed laminate according to claim 1, characterized in that: The thickness of the metal brushed PET film (3) is 25-35 μm.

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