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Construction method for preventing paint film of ultraviolet curing paint from blushing

A technology of curing coatings and construction methods, which is applied to the surface coating liquid device, coating, pretreatment surface, etc., and can solve the problems of material appearance not reaching the decorative effect, paint film cracking, paint film peeling adhesion, etc. , to achieve the effect of good cured product performance, fast curing speed and good surface effect

Inactive Publication Date: 2012-05-02
BEIJING ZHANCHEN CHEM +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the construction of UV curable coatings, or a few days, ten days, months or even longer after construction, the paint film will appear white, paint film cracking, paint film peeling off (poor adhesion) and other common phenomena Even if the type or composition of the paint is changed, the phenomenon of whitening and cracking of the paint film cannot be overcome, resulting in the appearance of the painted material and the required decorative effect, which will seriously bring great economic losses and reputation damage. There is no paint or method that can overcome this phenomenon

Method used

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  • Construction method for preventing paint film of ultraviolet curing paint from blushing

Examples

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Effect test

Embodiment 1

[0035] Embodiment 1: The spraying construction technology that prevents the paint film of medium density board to be coated with from turning white

[0036] The object to be coated is a decorative material composed of medium density boards, and the method for preventing the whitening of the UV-cured paint film on the object to be coated comprises the following steps:

[0037] 1) Sanding of the object to be coated: use sandpaper to sand the burr of the object to be coated, and sand it to make it smooth;

[0038] 2) Coloring of the object to be coated: use ultraviolet light to color the high-adhesion primer (top primer), evenly roller coat, and UV curing machine to cure and dry completely;

[0039] 3) Sanding: use sandpaper to sand flat and smooth;

[0040] 4) Adjust the construction viscosity of the UV-curable sprayed transparent primer (surfacer) to 16 seconds with a special thinner for UV-curable activity, and spray a "ten" evenly, with a temperature of 40°C and a 10-meter-l...

Embodiment 2

[0049] Embodiment 2: the roller coating construction method that prevents solid wood to be coated with paint film from whitish

[0050] The object to be coated is a decorative material composed of solid wood. The construction method for preventing the whitening of the UV-cured paint film on the object to be coated comprises the following steps:

[0051] 1) Sanding of the object to be coated: use sandpaper to sand the burr of the object to be coated, and sand it to make it smooth;

[0052] 2) Coloring of the object to be coated: use ultraviolet light to color the high-adhesion primer (top primer), apply it evenly with a roller, and UV cure and semi-dry;

[0053] 3) Ultraviolet light transparent primer; roller coating and UV curing roller coating transparent primer (surfacer), leveling with a 10-meter-long ultraviolet and infrared leveling machine at a temperature of 50 ° C for 3.5 minutes, and UV curing is completely dry;

[0054] 4) Sanding: use sandpaper to sand flat and sm...

experiment example

[0089] Experiment example: Observation experiment

[0090] Verify that the method described in Examples 1 and 2 and Comparative Examples 1 and 2 can effectively prevent the whitening of the UV-cured paint film and the construction method.

[0091] Select the object to be coated according to the requirements of the Examples and Comparative Examples, wherein Example 1 and Comparative Example 2 select medium density boards; Embodiment 2 and Comparative Example 1 select solid wood, which are respectively random, and adopt the method construction in each scheme, randomly after spraying Choose 10 products of Embodiment 1, 2 and Comparative Example 1, 2 and place them in an atmospheric environment with room temperature and humidity of 55%-65%, and place them for one month; in addition, take 10 products of Embodiment 1, 2 and Comparative Example 1 , 2 The product is placed in a constant temperature and humidity test box with a temperature of 80°C and a humidity of 80% for one month; d...

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Abstract

The invention relates to a construction method for preventing a paint film of an ultraviolet curing paint from blushing, comprising the steps of: coating a primer or a finishing paint; and performing ultraviolet infrared leveling for 3.5-5 minutes. The invention has the advantages that the construction method for preventing the paint film of the ultraviolet curing paint from blushing can effectively prevent bad effect that the paint film of the ultraviolet curing paint blushes, is fast to cure, saves energy sources, has good performance of cured products, and is suitable for high speed automatic production and the like so as to meet the requirements of manufacturing enterprises specialized in art and craft solid wood products or composite solid wood products such as wood doors, furniture, stairs, cupboards and the like.

Description

technical field [0001] The invention relates to a construction method of an ultraviolet light-curable paint, in particular to a construction method for preventing the whitening of the paint film of the ultraviolet light-curable paint. Background technique [0002] UV-curable coatings (ie, UV-curable coatings) have the advantages of no volatile organic compounds (VOC), less environmental pollution, fast curing speed, energy saving, good performance of cured products, and suitable for high-speed automatic production. However, traditional coatings are volatile and slow to cure, which is not conducive to environmental protection. Therefore, UV-curable coatings are a major substitute for traditional coatings. At the same time, it is well known. The paints used by manufacturers of furniture, cabinets, and wooden handicrafts are usually NC, PU, ​​and PE. With the development of paint coating technology and the enhancement of consumers' awareness of environmental protection, a ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/38B05D3/06
Inventor 陈寿生彭钧浪肖劲
Owner BEIJING ZHANCHEN CHEM
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