JP2006070235A - Light-storing powder coating and its coating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-storing powder coating that produces a good finish on a coating film by controlling the film thickness onto a material to be coated so as to be constant and can reduce the loss of the coating which would be incurred during the coating operation and to provide a coating method of the light-storing powder coating. <P>SOLUTION: The light-storing powder coating is formed by mixing an acrylic resin powder, a light-storing agent and an additive. The coating method of the light-storing powder coating comprises electrostatically charging a material to be coated and electrostatically powder-coating the charged material to be coated with the light-storing powder coating. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a phosphorescent powder coating material and a coating method thereof, and in particular, a high degree of finish can be obtained by making the coating film thickness constant, and the work efficiency can be improved by reducing the fluidity of the coating work, and the paint loss can be reduced. The present invention relates to a phosphorescent powder coating that can be realized and a method of coating the same.

  In the past, diligent research has been conducted over many years in powdering phosphorescent agents. The reason is that when the phosphorescent agent is agitated and powdered, the wall surface of the stirrer is scraped off by the hard phosphorescent material, and the scraped powder is mixed into the phosphorescent agent. For this reason, there is a drawback in that the whole is grayed out, the luminous intensity is lowered, and the commercial value is lowered.

Also, conventionally, a color blocking effect with a difference in brightness is obtained depending on the angle at which the object is viewed in the daytime or in bright conditions, and it has been formed as a phosphorescent coat layer even in the absence of light for a long time at night or in dark conditions There is a phosphorescent coating film forming method and a phosphorescent coating material obtained by this method with good phosphorescent property for visually recognizing the coating film (see, for example, Patent Document 1).
In the above-mentioned Patent Document 1, a phosphorescent coat layer containing a phosphorescent pigment is formed on a substrate, and then an interference clear coat layer containing an interference pigment is formed on the phosphorescent coat layer. Discloses a phosphorescent coating film forming method for forming a top clear coat layer and a phosphorescent coating material.
JP 2001-31894 A (page 1-2, FIG. 1)

  However, since the coating film formed by the above method is provided with a clear coat layer and a top clear coat layer on the phosphorescent coating layer, the coating film formed on the surface becomes a plurality of layers, which increases the number of coating processes and paints. The disadvantage of being connected to high occurred. In addition, since the coated film becomes solvent coating, the film thickness is not fixed and the finish is unstable.

  Therefore, in view of the above points, the present invention provides a phosphorescent powder paint capable of stabilizing the film thickness on the object to be coated to improve the finish and reducing the loss of the paint generated during the work, and the coating thereof. It is to provide a method.

In order to solve the above problems, the phosphorescent powder coating material of the present invention is characterized by being formed by mixing an acrylic resin powder, a phosphorescent agent, and an additive.
In addition, the method of applying the phosphorescent powder paint according to the present invention is characterized in that static electricity is applied to an object to be coated, and the phosphorescent powder paint is applied to the article to be coated with electrostatic powder.

  The phosphorescent powder coating is formed by mixing acrylic resin powder, phosphorescent agent and additive, so when powdering the phosphorescent agent, the inner wall wear of the stirrer is reduced, and the brightness is high and good quality. A phosphorescent powder coating can be formed.

  In addition, by applying electrostatic powder coating of the phosphorescent powder coating to the object to be coated, the film thickness on the object to be coated is made constant to improve the finish, and the loss of the paint and the work time in the work can be reduced. Can do.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the phosphorescent powder coating material and the coating method thereof according to the present invention will be described below with reference to the drawings.
The phosphorescent powder coating 1 shown in FIG. 1 is a coating film formed on the article A that can spontaneously emit a fantastic fluorescent color at night. The phosphorescent powder coating 1 includes acrylic resin powder and It is formed by mixing phosphorescent agent and additive.

  The acrylic resin powder is mainly composed of an acrylic resin or a polyester resin, and is not particularly limited as long as it is a thermosetting type or a thermoplastic type. Examples of the phosphorescent agent include a material capable of storing light and capable of spontaneous emission, for example, a strontium aluminate-based phosphorescent agent. In addition, a material produced by mixing a plurality of known metal compounds and rare earths and mixing a general-purpose color developing agent is used. As additives, friction additives, coating surface modifiers, curing catalysts, paint additives such as rust preventive pigments, and the like are used.

  In addition, the mixing ratio of the acrylic resin powder, the luminous agent, and the additive in the luminous powder coating material 1 is not particularly limited. For example, the acrylic resin powder 60 to 55: luminous agent 45 to 40: It is preferable to be within the range of additive 5.

Next, the method for applying the phosphorescent powder paint of the present invention will be described with reference to FIG.
As a method of electrostatic powder coating, first, as a pretreatment, dirt on the surface of the article A to be coated is wiped off with alcohol or the like. Next, the general-purpose electrostatic powder coating machine 10 connects the power supply 11 to the article A to be charged by applying a voltage of −70 to −80 KV. After charging, the phosphorescent powder paint 1 is sprayed with an air gun B so that the coating amount becomes 119 to 153 g / m ² . At this time, since the phosphorescent powder coating 1 is efficiently attached to the surface of the article A by static electricity, the coating film is made constant and the finish is improved, and the coating loss during the painting operation is reduced. .

  After spraying, the object A to be coated is thermally cured under baking conditions of 170 ° C. × 20 minutes, whereby a dry film thickness of 70 to 90 μm can be formed on the surface of the object A to be coated.

It is an expanded sectional view of the luminous powder coating material of the present invention. 1 is a schematic view of an electrostatic powder coating machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Luminous powder coating material 10 Electrostatic powder coating machine 11 Power supply A Object B Air gun

Claims (2)

  A phosphorescent powder coating material formed by mixing an acrylic resin powder, a phosphorescent agent, and an additive.   A coating method comprising charging an object with static electricity and applying the phosphorescent powder coating onto the object to be coated with electrostatic powder.

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