Coating process for coating wood veneer board with UV coatings in roll coating mode

A coating process and roller coating technology, which is applied to the device, coating, and pretreatment surface of the surface coating liquid, which can solve the problem of great pollution of construction personnel and the environment, low overall benefit and efficiency, and volatilization of organic solvents. Serious problems, to achieve the effect of reducing VOC emissions, high fullness, and good mirror effect

Inactive Publication Date: 2015-05-06
HUIZHOU CHANGRUNFA PAINT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process involves a long time (at least 58 hours in rough calculation), high energy consumption, serious volatilization of organic solvents, great pollution to construction personnel and the environment, and the overall benefit and efficiency are not high

Method used

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  • Coating process for coating wood veneer board with UV coatings in roll coating mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A kind of coating process of roller coating UV coating on oak, comprises the steps:

[0053] (1) Oak pretreatment: Grinding with 220# sandpaper to remove the burrs on the oak surface;

[0054] (2) Roller coating of water-based UV transparent primer: the UV transparent primer is a quick-drying and color-adding UV transparent primer, which is coated by a sponge roller, and the coating amount is controlled at 10g / m 2 ;

[0055] (3) Infrared drying and UV full curing: 60°C infrared drying for 1 minute, dry all the water, and then use UV energy at 180mj / cm 2 Cured by ultraviolet rays, the ultraviolet irradiation time is 4s;

[0056] (4) Roller coating of UV transparent primer: the viscosity of the UV transparent primer is 600mpas, and the rubber roller is used for one roll, and the coating amount is controlled at 20g / m 2 ;With UV energy of 200mj / cm 2 Curing with ultraviolet rays, the ultraviolet irradiation time is 4s;

[0057] (5) Light sanding and dust removal: Use 40...

Embodiment 2

[0064] A kind of painting process of roller coating UV paint on Mandshurica mandshurica, comprising the steps:

[0065] (1) Pretreatment of Fraxinus ash: use a 320# sandpaper machine to grind to remove the burrs on the surface of Fraxinus ash;

[0066] (2) Roller coating of water-based UV transparent primer: The UV transparent primer is a quick-drying and color-adding UV transparent primer, which is coated by a sponge roller, and the coating amount is controlled at 15g / m 2 ;

[0067] (3) Infrared drying and UV full curing: 60°C infrared drying for 2 minutes, dry all the water, and then use UV energy of 220mj / cm 2 Cured by ultraviolet rays, the ultraviolet irradiation time is 5s;

[0068] (4) Roller coating of UV transparent primer: the viscosity of the UV transparent primer is 800mpas, and the rubber roller is used for one roll, and the coating amount is controlled at 25g / m 2 ;With UV energy of 250mj / cm 2 Cured by ultraviolet rays, the ultraviolet irradiation time is 4s; ...

Embodiment 3

[0076] A kind of coating process of roll coating UV coating on elm, comprises the steps:

[0077] (1) Pretreatment of elm wood: use 220# sandpaper for hand grinding to remove the burrs on the surface of elm wood;

[0078] (2) Roller coating of water-based UV transparent primer: the UV transparent primer is a quick-drying and color-adding UV transparent primer, which is coated with a sponge roller, and the coating amount is controlled at 12g / m 2 ;

[0079] (3) Infrared drying and UV full curing: 60°C infrared drying for 1 minute, dry all the water, and then use UV energy at 190mj / cm 2 Fully cured by ultraviolet rays, the ultraviolet irradiation time is 4s;

[0080] (4) Roller coating of UV transparent primer: the viscosity of the UV transparent primer is 650mpas, and the rubber roller is used for one roll, and the coating amount is controlled at 22g / m 2 ;With UV energy of 220mj / cm 2 UV rays are used for full curing, and the UV irradiation time is 1min;

[0081] (5) Light s...

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Abstract

The invention discloses a coating process for coating a wood veneer board with UV coatings in a roll coating mode. The coating process comprises the following steps of 1 wood veneer board pretreatment, 2 roll coating of water-based UV transparent primer, 3 infrared drying and ultraviolet curing, 4 roll coating of UV transparent primer, 5 sand cleaning and dust removal, 6 roll coating of UV padding finishing coat, 7 laser roll coating of UV sub-gloss surface cleaning varnish, 8 infrared leveling and 9 ultraviolet curing and detection packing. The coating process for coating the wood veneer board with the UV coatings in the roll coating mode is simple, high in efficiency, low in cost and free of pollution, and the surface effect can reach a PU coating open effect.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a coating process for rolling UV coatings on wood veneer. Background technique [0002] In recent years, in the antique paint coating process, a large part has adopted the open effect on the wood veneer, with different colors and rich and colorful. [0003] To make open paint on the veneer, the traditional process is to first make a PU sealing primer on the veneer, after polishing, use PU colored Grace to manually wipe one side, do 1~2 transparent primers, wait until completely After drying, sand and then apply PU topcoat. This process involves a long time (at least 58 hours in rough calculation), high energy consumption, serious volatilization of organic solvents, great pollution to construction personnel and the environment, and low overall benefits and efficiency. [0004] UV curing coatings, referred to as UV coatings, also known as photoinitiated coatings, photocuring coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/06B05D3/02B05D3/06B05D5/06
Inventor 陈明练世斌戴超
Owner HUIZHOU CHANGRUNFA PAINT
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