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Production technology and equipment for forming specular highlight decorative effect on surfaces of artificial boards by means of powder coating

A production process, powder coating technology, used in powder coatings, devices for coating liquids on surfaces, special surfaces, etc., can solve the problems of lack, the coating topcoat contains sand grains, and the curing time is short, and achieve low viscosity performance. , The effect of improving yield and improving performance

Pending Publication Date: 2018-11-13
FOSHAN YIKEJU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 2. The low-temperature powder coating finish of wood-based panels cannot achieve the surface decoration effect of super-leveling and specular high-gloss similar to traditional piano paint
Due to the characteristics of the plate itself, it is not suitable to be baked for a long time at an excessively high temperature environment. Therefore, the low-temperature powder coatings selected in the existing technology generally have the characteristics of fast reaction speed and short curing time. At the same time, because there is not enough time for surface leveling, the coating finish mostly contains sand grains, and can only form a matte effect, which affects the grade and sales of the product
[0011] 3. Lack of professional equipment and technology to continue to decorate the surface of wood-based panels after low-temperature powder coating and curing to improve the surface decoration effect of the products

Method used

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  • Production technology and equipment for forming specular highlight decorative effect on surfaces of artificial boards by means of powder coating
  • Production technology and equipment for forming specular highlight decorative effect on surfaces of artificial boards by means of powder coating

Examples

Experimental program
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Effect test

Embodiment 1

[0053] A commercially available medium density fiberboard is selected, its moisture content is determined to be 6%, and the medium density fiberboard is cut into various required shapes according to requirements. For the straight side of the cut MDF, first use 150-grit sandpaper to automatically polish, then automatically chamfer the upper and lower sides, and then use the roller coating process for sealing treatment. The UV radiation curing coating used includes the following weights Percentage of components: Epoxy acrylate prepolymer 75% (Shanghai allnex resin EB3708), reactive monomer diluent 15% (Shanghai allnex resin DPGDA), UV photoinitiator 3% (Tianjin Jiuri JRCure-1104 ), leveling agent 2% (German BYK BYK-333), filler 5% (Sibelco silica powder). Next, the ultraviolet light curing device is used for irradiation. The ultraviolet light curing light source used is a high-pressure mercury lamp with an output power greater than 80w / cm. The thickness of the edge-sealing coati...

Embodiment 2

[0060] Select a commercially available particleboard, measure its moisture content to 10%, and cut the particleboard into various required shapes according to requirements. For the straight side of the cut particleboard, first use 150 mesh sandpaper to automatically polish, then automatically chamfer the upper and lower sides, and then use the roller coating process for sealing treatment. The ultraviolet radiation curing coating used includes the following weight percentages: Components: Epoxy Acrylate Prepolymer 70% (Shanghai Allnex Resin EB3708), Reactive Monomer Diluent 15% (Shanghai Allnex Resin DPGDA), UV Photoinitiator 5% (Tianjin Jiuri JRCure-1104), Leveling agent 5% (German BYK BYK-333), filler 5% (Sibelco silica powder). Next, use a UV curing device to irradiate. The UV curing light source used is a high-pressure mercury lamp with an output power greater than 80w / cm. Repeat the roller coating irradiation operation twice so that the thickness of the edge-sealed coating...

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Abstract

The invention relates to a production technology and equipment for forming a specular highlight decorative effect on the surfaces of artificial boards by means of powder coating. The production technology is characterized in that the specular highlight decorative effect is formed by conducting the procedures such as closed pretreatment of edges, the upper surfaces and the lower surfaces, powder coating electrostatic spraying, infrared radiation curing treatment, surface coating grinding and polishing on the surfaces of the boards. The corresponding production equipment comprises a board side-edge sealing machine, a board plane rolling spraying sealing machine, an electrostatic spraying room, an infrared radiation curing furnace, a sanding machine and a buffing machine. The surface paint film of the produced artificial board has the properties that the surface paint film is free of formaldehyde and VOC and specularly super-smooth, the glossiness 60-degree angle exceeds 90 degrees, the pencil hardness exceeds 1H, the paint adhesion force reaches one level or above, and the surface paint film can pass through the over 50-time acetone-resistant wiping test.

Description

technical field [0001] The invention belongs to the technical field of surface decoration of artificial boards, and in particular relates to a production process and production equipment for forming a specular highlight decoration effect on the surface of artificial boards by using powder coating. Background technique [0002] Man-made panels are made of natural wood, non-wood plants, and inorganic non-metallic materials. After mechanical processing and separation into various unit materials, the unit materials are glued together with other additives with or without adhesives. Or molded products, mainly including solid wood multi-layer boards, particle boards and medium-density fiberboards. In order to make the surface layer of the artificial board have higher strength, longer service life and more beautiful appearance, the surface of the artificial board is usually painted or powder-coated for decoration. [0003] Traditional painting is to use a compressed air spray gun t...

Claims

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Application Information

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IPC IPC(8): B05D5/06B05D7/00B05D3/12B05D3/02C09D167/00C09D163/00C09D5/03
CPCC09D163/00C09D167/00C09D5/033B05D3/0263B05D3/12B05D5/063B05D7/546B05D2502/00C08L2205/03C08L63/00C08L33/08C08L67/00B05D2420/01
Inventor 伍明
Owner FOSHAN YIKEJU NEW MATERIAL CO LTD
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