Durable decorative paint coating structure

Abstract

The utility model discloses a durable decorative paint coating structure which comprises a base material, a first primer layer, a first white primer layer, a second white primer layer, a decorative paint layer, a transparent primer layer and a transparent gloss paint layer, a first polishing layer is arranged on the surface of the base material; the first white primer layer is coated on the first polishing layer, and a second polishing layer is arranged on the surface of the first white primer layer; the second white primer layer is coated on the second polishing layer, and a third polishing layer is arranged on the surface of the second white primer layer; and the decorative paint layer is coated on the third polishing layer. The base material is covered with the first white primer layer and the second white primer layer, the influence of the original color of wood can be further reduced through the two white primer layers, the visual effect of the decorative paint layer is effectively improved, and then the decorative paint layer is sequentially coated with the transparent primer layer and the transparent gloss paint layer, so that the decorative effect is improved. The two transparent paint layers can increase the thickness of the surface paint layer of the transparent decorative paint layer, and have a better protection effect on the decorative paint layer.

Description

Technical Field

[0001] The utility model relates to the field of coating structure technology, in particular to a durable decorative paint coating structure. Background Art

[0002] Medium density fiberboard, generally refers to medium density fiberboard, is a kind of man-made board. In China, medium density fiberboard is made of agricultural waste or small firewood as the main raw materials, and its main components are wood fiber, resin glue, etc. It is an environmentally friendly furniture building material substitute for logs after hot grinding, drying, gluing, paving, hot pressing, post-treatment, and sanding.

[0003] Although MDF has the advantages of being relatively cheap compared to logs, easy to process, uniform in material, good in physical properties, good in heat insulation, no aging, and strong in adhesion, as people's material level improves, their aesthetics of building materials also gradually improves, so building material manufacturers begin to set up coating structures on MDF to increase the aesthetics of MDF. However, the decorative layer of MDF is easily affected by the original color of the MDF wood, resulting in unsatisfactory visual effects of the decorative layer, and there is only one layer of protective paint on the surface of the decorative layer, which is not ideal for protecting the decorative layer, making the coating structure of the MDF not durable. Therefore, it is necessary to propose a new solution to solve the above problems. Utility Model Content

[0004] In view of this, the utility model aims to address the deficiencies in the prior art, and its main purpose is to provide a durable decorative paint coating structure, which can effectively solve the problem that the decorative layer of the existing coating structure is easily affected by the original color of the wood, resulting in poor visual effects and the protective layer is not adequately protected, making the coating structure not durable.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A durable decorative paint coating structure includes a substrate, a first primer layer, a first white primer layer, a second white primer layer, a decorative paint layer, a transparent primer layer and a transparent glossy paint layer; the substrate is a medium-density fiberboard, and the surface of the substrate has a first polished layer; the first primer layer is coated on the first polished layer, and the first primer layer has a second polished layer; the first white primer layer is coated on the second polished layer, and the surface of the first white primer layer has a third polished layer; the second white primer layer is coated on the third polished layer, and the surface of the second white primer layer has a fourth polished layer; the decorative paint layer is coated on the fourth polished layer; the transparent primer layer is coated on the decorative paint layer; the transparent glossy paint layer is coated on the transparent primer layer.

[0007] As a preferred embodiment, the model of the first primer layer is TB31007A.

[0008] As a preferred solution, the first white primer layer and the second white primer layer are both water-based two-component white primers, and the model number is TB66005.

[0009] As a preferred solution, the decorative paint layer is water-based ice crack paint, and its model is TB87022.

[0010] As a preferred solution, the transparent primer layer is a water-based two-component extra-clear transparent primer, and its model is TB62015. The use of the extra-clear transparent primer can make the decorative paint layer more clearly observed, preventing the decorative paint layer from having two layers of paint coated on its surface, resulting in the texture on the decorative paint layer not being clearly seen.

[0011] As a preferred solution, the transparent glossy paint layer is a water-based two-component transparent glossy topcoat, and its model is TB82016.

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0013] By covering the substrate with the first white primer layer and the second white primer layer, the two white primer layers can further reduce the influence of the original color of the wood and effectively enhance the visual effect of the decorative paint layer. The decorative paint layer is then coated with a transparent primer layer and a transparent glossy paint layer in sequence. The two transparent paint layers can increase the surface paint thickness of the transparent decorative paint layer and provide a stronger protective effect on the decorative paint layer. In addition, the polishing layers between the coating layers can ensure that the coating layers are firmly bonded and not easy to fall off.

[0014] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of a preferred embodiment of the utility model.

[0016] Description of the accompanying drawings:

[0017] 10. Base material 11. First polishing layer

[0018] 20. First primer layer 21. Second polishing layer

[0019] 30. First white primer layer 31. Third polishing layer

[0020] 40. Second white primer layer 41. Fourth polishing layer

[0021] 50. Decorative paint layer 60. Transparent primer layer

[0022] 70. Transparent glossy paint layer. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a substrate 10, a first primer layer 20, a first white primer layer 30, a second white primer layer 40, a decorative paint layer 50, a transparent primer layer 60 and a transparent glossy paint layer 70.

[0024] The substrate 10 is a medium fiberboard, and a first polishing layer 11 is provided on the surface of the substrate 10 .

[0025] The first primer layer 20 is coated on the first polishing layer 11 , and the first primer layer 20 has a second polishing layer 21 . In the present embodiment, the model of the first primer layer 30 is TB31007A.

[0026] The first white primer layer 30 is coated on the second polishing layer 21 , and the surface of the first white primer layer 30 has a third polishing layer 31 . In the present embodiment, the first white primer layer 30 is a water-based two-component white primer, and its model is TB66005.

[0027] The second white primer layer 40 is coated on the third polishing layer 31 , and the surface of the second white primer layer 40 has a fourth polishing layer 41 . In this embodiment, the second white primer layer 40 is a water-based two-component white primer, and its model is TB66005.

[0028] The decorative paint layer 50 is coated on the fourth polishing layer 41 ; in the present embodiment, the decorative paint layer 50 is water-based ice crack paint, and its model is TB87022.

[0029] The transparent primer layer 60 is coated on the decorative paint layer 50; in the present embodiment, the transparent primer layer 60 is a water-based two-component extra-clear transparent primer, and its model is TB62015. The use of the extra-clear transparent primer can make it possible to observe the decorative paint layer 50 more clearly, thereby preventing the decorative paint layer 50 from having its texture not clearly visible due to the two layers of paint coated on its surface.

[0030] The transparent glossy paint layer 70 is coated on the transparent primer layer 60 ; in this embodiment, the transparent glossy paint layer 70 is a water-based two-component transparent glossy topcoat, and its model is TB82016.

[0031] The production process of this embodiment is described in detail as follows:

[0032] First, take a substrate 10 that has been fully dried and cured, and its wood moisture content is controlled below 11%. Use 240# sandpaper to sand the entire white body once, without defects or horizontal sand marks. Then, spray the first sanding layer 11 evenly once, dry it for more than 60 minutes to form a first primer layer 20, and sand it smooth with 400# sandpaper to form a second sanding layer 21; then pre-mix the curing agent and water according to the specified ratio, pour it into the topcoat, stir it evenly, filter it through 120 mesh, spray 2 crosses evenly, and the panel is sprayed without flow as a whole. Hang, dry at a temperature of 25-35℃ for not less than 4 hours, and the humidity is controlled at 40%-60%, to form the first white primer layer 30, and use 400# zinc powder sandpaper to grind it flat, without leaking sand, and all parts and edges and corners cannot be sanded through, so as to form the third grinding layer 31; then continue to pre-mix the curing agent and water according to the specified ratio, and then pour it into the topcoat and stir evenly. Filter through 120 mesh, spray all evenly with 2 crosses, and the panel is sprayed without sagging as a whole, and dry at a temperature of 25-35℃ for not less than 4 hours, and the humidity is controlled at 40%-60% to form a second white primer layer 40, which is polished with 400# zinc powder sandpaper to be smooth without leaking sand, and all parts and edges and corners cannot be sanded through, thereby forming a fourth polishing layer 41; then, at a temperature of 30-40°C and humidity controlled at 40%-60%, decorative paint is evenly sprayed to form a decorative paint layer 50; then, the curing agent and water are pre-mixed evenly according to the specified ratio, and then poured into the topcoat and stirred evenly, filtered through 200 mesh, and all are evenly sprayed with 2 crosses, and the panel is sprayed without sagging as a whole, and at a temperature of 30-40°C Dry at 400 °C for no less than 4 hours, and control the humidity at 40%-60% to form a transparent primer layer 60; finally, pre-mix the curing agent and water according to the specified ratio, pour into the topcoat, stir evenly, filter through 200 mesh, spray all of them evenly with 2 crosses, spray the whole panel without sagging, level it at room temperature for 8-10 minutes, dry it in a drying room with good air flow for at least 4 hours, and ensure the temperature is at 30-40 °C, the humidity is controlled at 40%-60%, and the paint film is cured for at least 8 hours to form a transparent glossy paint layer 70, and then package it for shipment.

[0033] The design focus of the utility model is: by covering the first white primer layer and the second white primer layer on the substrate, the two white primer layers can further reduce the influence of the original color of the wood, effectively improving the visual effect of the decorative paint layer, and then the decorative paint layer is coated with a transparent primer layer and a transparent glossy paint layer in sequence, the two transparent paint layers can increase the surface paint layer thickness of the transparent decorative paint layer, and have a stronger protective effect on the decorative paint layer, and, in combination with the various polishing layers between the coating layers, the coating layers can be firmly combined and not easy to fall off.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A durable decorative paint coating structure, characterized in that: The invention comprises a substrate, a first primer layer, a first white primer layer, a second white primer layer, a decorative paint layer, a transparent primer layer and a transparent glossy paint layer; the substrate is a medium-density fiberboard, and the surface of the substrate has a first polished layer; the first primer layer is coated on the first polished layer, and the first primer layer has a second polished layer; the first white primer layer is coated on the second polished layer, and the surface of the first white primer layer has a third polished layer; the second white primer layer is coated on the third polished layer, and the surface of the second white primer layer has a fourth polished layer; the decorative paint layer is coated on the fourth polished layer; the transparent primer layer is coated on the decorative paint layer; and the transparent glossy paint layer is coated on the transparent primer layer.

2. The durable decorative paint coating structure according to claim 1, characterized in that: The model of the first primer layer is TB31007A.

3. The durable decorative paint coating structure according to claim 1, characterized in that: The first white primer layer and the second white primer layer are both water-based two-component white primers, and the model number is TB66005.

4. The durable decorative paint coating structure according to claim 1, characterized in that: The decorative paint layer is water-based ice crack paint, and its model is TB87022.

5. The durable decorative paint coating structure according to claim 1, characterized in that: The transparent primer layer is a water-based two-component extra-clear transparent primer, and its model is TB62015.

6. The durable decorative paint coating structure according to claim 1, characterized in that: The transparent glossy paint layer is a water-based two-component transparent glossy topcoat, and its model is TB82016.

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