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Novel wooden door coating method

A coating method and wooden door technology, applied in the direction of surface coating liquid device, coating, pretreatment surface, etc., can solve the problems of large VOC, large production site, low hardness, etc., to save production site and improve productivity And market competitiveness, the effect of high surface hardness

Inactive Publication Date: 2011-06-22
上海展辰涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional wooden door primer coating is mainly based on polyurethane coating (PU), which generally has problems such as large VOC, thin coating, low hardness, low efficiency, and large production site. Therefore, the furniture industry urgently needs a new process to replace the existing one. Production mode to meet the production needs of large-scale efficiency improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Polish the oak or ash board with 600# sandpaper to remove all the dust;

[0022] (2) Spray UV vacuum spraying primer with vacuum spraying machine, coating amount: 100~120g / m 2 , (commercially available products can be used, such as Shanghai Fuchen Chemical UV vacuum spraying primer VU2110B), after infrared leveling at 50°C for 2 to 3 minutes, adjust the energy of the ultraviolet lamp to 240mj / cm 2 , fully cured by ultraviolet light;

[0023] (3) After sanding the primer with 320# sandpaper, add an appropriate amount of color essence for PU color correction according to the coloring requirements (commercially available products can be used, such as Shanghai Fuchen Chemical PU color repair topcoat V500);

[0024] (4) After the PU color-repairing topcoat is dried for 1 hour, lightly polish the color-repairing layer with 1000# sandpaper, and evenly spray the PU topcoat (25°C, construction viscosity: Iwata No. 2 cup 12-13S) once and a half, ( Commercially available pro...

Embodiment example 2

[0033] (1) Polish the oak or ash board with 600# sandpaper to remove all the dust;

[0034] (2) Spray UV vacuum spraying primer with vacuum spraying machine, coating amount: 60~80g / m 2 , (commercially available products can be used, such as Shanghai Fuchen Chemical UV vacuum spraying primer VU2110B), after infrared leveling at 50°C for 2 to 3 minutes, adjust the energy of the ultraviolet lamp to 120mj / cm 2 , semi-cured by UV lamp; spray UV vacuum spray primer with vacuum sprayer, coating amount: 60~80g / m 2 , (commercially available products can be used, such as Shanghai Fuchen Chemical UV Vacuum Spraying Primer VU2110B), after infrared leveling at 50°C for 2 to 3 minutes, adjust the energy of the UV lamp to 250mj / cm 2 , fully cured by UV lamp; after the primer is smoothed with 320# sandpaper, spray UV vacuum spray primer with vacuum sprayer, coating amount: 100~120g / m 2 , (commercially available products can be used, such as Shanghai Fuchen Chemical UV vacuum spraying primer...

Embodiment 3

[0044] (1) Polish the cherry wood or Sapele board with 600# sandpaper to remove all the dust;

[0045] (2) Spray UV vacuum spraying primer with vacuum spraying machine, coating amount: 80~100g / m 2 , (commercially available products can be used, such as Shanghai Fuchen Chemical UV Vacuum Spraying Primer VU2110B), after infrared leveling at 50°C for 2 to 3 minutes, adjust the energy of the UV lamp to 250mj / cm 2 , fully cured by UV lamp; after the primer is smoothed with 320# sandpaper, spray UV vacuum spray primer with vacuum sprayer, coating amount: 100~120g / m 2 , (commercially available products can be used, such as Shanghai Fuchen Chemical UV vacuum spraying primer VU2110B), after infrared leveling at 50°C for 2 to 3 minutes, adjust the energy of the ultraviolet lamp to 240mj / cm 2 , Full curing by UV lamp.

[0046] (3) After sanding the primer with 320# sandpaper, add an appropriate amount of color essence for PU color correction according to the coloring requirements (comm...

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PUM

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Abstract

The invention provides a novel wooden door coating method which comprises the following steps of: 1, carrying out sand papering on a base material, and removing dust; 2, performing priming paint spraying in vacuum by using UV, and curing with UV-light, wherein the times of the performing is determined according to the coating requirement; 3, after the priming paint is sanded with the UV, spraying PU (polyurethane) padding finish paint; and 4, after light sanding, spraying a PU surface, and completely drying to obtain a finished product. The novel wooden door coating method provided by the invention has the advantages of having no VOC emission when the priming paint is sprayed for coating in vacuum by using the UV, improving the board hardness, greatly increasing the productivity and the market competitiveness, and saving the production space at the same time.

Description

technical field [0001] The invention relates to a new coating method for wooden doors. Background technique [0002] With the improvement of people's living standards, the replacement of wooden doors is getting faster and faster, and the market demand is increasing day by day. The traditional wooden door primer coating is mainly based on polyurethane coating (PU), which generally has problems such as large VOC, thin coating, low hardness, low efficiency, and large production site. Therefore, the furniture industry urgently needs a new process to replace the existing one. Production mode to meet the production needs of large-scale efficiency improvement. Contents of the invention [0003] The purpose of the present invention is to overcome above-mentioned defect, a kind of new wooden door coating method is provided. [0004] The method of the present invention comprises the steps of: [0005] (1) Grinding the substrate with 240# sandpaper to remove dust; [0006] (2) Co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B05D7/08B05D3/12B05D3/06
Inventor 王向科邓静
Owner 上海展辰涂料有限公司
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