JP2000107681A - Light storage reflector and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light storage reflector of constitution disposed with light storage materials and reflection materials on the same plane and a process for producing the same. SOLUTION: This light storage coating material layer is composed of a colorless transparent clear coating material layer 2. The light storage materials 3 are arranged in the uniformly diffused state therein. Beads 4 coated with thin aluminum layers on the hemispherical surfaces of spherical glass are disposed on the light storage coating material layer. As a result, when the light storage reflector is irradiated with light, the light is reflected and absorbed, by which the light storage reflector may be made to emit light in the darkness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luminous reflector that reflects and absorbs light when irradiated with light, and emits light in the dark, and a method of manufacturing the same.

[0002]

2. Description of the Related Art It is well known that a reflector coated with a paint containing aluminum powder or the like and a bead ball disposed thereon is used as a reflector coating which reflects the light when irradiated with light.

As a phosphorescent material coating that absorbs light and emits light in the dark, it is well known that a phosphorescent paint is applied after being coated with a white paint in order to increase the emission luminance of the phosphorescent material. .

By combining such a conventional reflector coating and a phosphorescent coating, when light is irradiated, the light is reflected,
Conventionally, when a luminous reflective coating that emits light in the dark is applied, the area to be coated is conventionally divided into two areas 5 as shown in FIG.
6, one area was coated with a reflective material, and the other area was coated with a phosphorescent material.

[0005] The reason why the coating area is divided into two areas as described above is that when the reflecting material coating and the phosphorescent material coating are applied on the same plane, the effect of the coating applied below is applied. Is significantly reduced. In other words, when the luminous paint falls, the light reaching the luminous material becomes significantly less due to the paint layer containing aluminum powder and the like used for the undercoating of the reflective material paint which is on the upper side, so that the light does not emit in the dark, and This is because, when the reflective material coating falls, the light is blocked by the white paint layer used for the undercoating of the light-storing material coating on top, so that the light is no longer reflected.

[0006]

As described above, in the conventional phosphorescent reflector, when the paint is applied, the area to be painted is divided into two areas, one of which is coated with a reflector and the other is coated with a phosphorescent material. Therefore, it takes time and effort for painting, and it is difficult to paint a portion that is difficult to be divided into two regions.

It is an object of the present invention to provide a phosphorescent reflector having a structure in which a phosphorescent material and a reflector are arranged on the same plane, and a method of manufacturing the phosphorescent reflector.

[0008]

Means for Solving the Problems To achieve the above object, the phosphorescent reflector according to the present invention comprises:
Characterized in that beads having a thin aluminum layer coated on a hemispherical surface of spherical glass are arranged on a layer of a phosphorescent paint in which an anti-settling agent and a phosphorescent material are mixed. It is.

The method for producing a luminous reflector according to the present invention is a luminous phosphor comprising a colorless and transparent clear paint mixed with a hardener and a thinner, and a dispersant, an anti-settling agent and a luminous material. The paint is sprayed on the object using compressed air while stirring, to form a layer of the phosphorescent paint on the surface of the object, and on the formed layer of the phosphorescent paint,
The present invention is characterized in that beads having a thin aluminum layer coated on a hemispherical surface of spherical glass are provided.

[0010]

Embodiments of the present invention will be described below.

The luminous reflector according to the present invention is a luminous paint which is proposed by the present inventors, ie, has a high luminous efficiency and a long luminous time. It has a structure arranged on the layer of the phosphorescent paint.

First, the phosphorescent paint proposed by the present inventors will be described in detail including examples.

In the luminous paint according to the present invention, a mixture of a clear and colorless clear paint and a curing agent and a thinner is used as a stock solution for forming a paint layer. Here, as the colorless and transparent clear paint, any of acrylic resin, epoxy and polyurethane resin paints may be used.

[0014] A phosphorescent paint is prepared by mixing an anti-settling agent and a dispersant in addition to the phosphorescent material to such a paint stock solution. Here, as the phosphorescent material, in addition to the phosphorescent material already proposed by the present inventor (Japanese Patent Application No. 8-323365), a phosphorescent material such as Picarico (CP-05, CP-10) manufactured by Chemitech Co., Ltd. may be used. it can.

In the case where the phosphorescent paint according to the present invention is applied, the thinner is evaporated and the colorless transparent paint is dried, and the particles of the phosphorescent material are acted on by the action of the anti-settling agent and the dispersant. Keeps being uniformly dispersed without settling in the paint layer. Therefore, since a larger amount of thinner can be mixed as compared with the conventional phosphorescent paint, the phosphorescent paint can be thinned and the thickness of the paint layer can be reduced (50 to 100 microns). The painted surface can be finished smoothly.

FIG. 1 shows a state where the luminous paint according to the present invention is applied and dried.

As shown in FIG. 1, in the luminous paint according to the present invention, the luminous material 3
Will be arranged in a diffused state. As described above, in the phosphorescent paint according to the present invention, the surface area of the particles of the phosphorescent material 3 in the paint layer 2 is significantly larger than in the past, so that the phosphorescent efficiency is significantly increased in comparison with the prior art. As a result, the light emission time can be significantly increased.

Therefore, in the luminous paint according to the present invention, the undercoating with the white paint, which has been required conventionally, can be omitted, so that the color of the base can be visually recognized through the colorless transparent clear paint layer 2. That is, according to the luminous paint according to the present invention, even when the object to be coated is a “colored object” or a “patterned object”, the color or pattern can be visually recognized in a bright state, and the object to be coated becomes dark when it is dark. The painted surface can emit light in the emission color of the phosphorescent material 3.

Hereinafter, examples of the luminous paint according to the present invention will be described.

Embodiment 1 First, the materials used in this embodiment will be described. Luminescent material: Picarico manufactured by Chemitec Corporation (CP-0)
5) Fully subdivided with a pebble ball mill (particle diameter: 7 μm to 30 μm) to form a powder Colorless and transparent clear paint: Soflex 5000 Top Clear, manufactured by Kansai Paint Co., Ltd. Hardener: Kansai Paint Co., Ltd. Flex 120 curing agent Thinner: Kansai Paint Co., Ltd., standard type of urethane PG thinner Anti-settling agent: Nippon Oil & Fat Co., Ltd. amide wax N
o. 5100 Dispersant: Nippon Yushi Co., Ltd. High Urethane (HU50)
01-M)

Using the above materials, a stock solution of paint was prepared by mixing 9% of a hardener and 6% of thinner in 85% of a colorless and transparent clear paint, and when the weight of the stock solution was 100, the weight of the dispersant was 3. The weight of the anti-settling agent was 5 and the weight of the luminous material was mixed at a ratio of 30 to 40 to prepare a luminous paint according to the present invention. Here, in this example, a sedimentation inhibitor mixed with a dispersant manufactured by NOF Corporation was used as a dispersant and an antisettling agent.

Since the clear and colorless clear paint used in the present embodiment cures when dried, the phosphorescent paint according to the present embodiment is suitable for coating a molded product made of a material such as plastic, metal, or carbon.

(Example 2) A phosphorescent paint according to the present invention was prepared by changing only the colorless transparent clear paint among the materials used in Example 1 to Soflex 300 manufactured by Kansai Paint Co., Ltd.

The luminous paint according to the present embodiment has flexibility even when dried, so that it can be used for painting stretchable fabrics or objects that require bending.

(Embodiment 3) First, the materials used in this embodiment will be described. Luminescent material: Picarico manufactured by Chemitec Corporation (CP-0)
No. 5) was sufficiently subdivided with a pebble ball mill (particle diameter: 7 μm to 30 μm) to form a powder. Colorless transparent clear coating: Hiurethane No. manufactured by NOF Corporation 5001 Clear 41HF Curing agent: Nippon Yushi Co., Ltd. High urethane curing agent HF Thinner: Kansai Paint Co., Ltd. Standard type of urethane PG thinner Anti-settling agent: Nippon Yushi Co., Ltd. amide wax N
o. 5100 Dispersant: Nippon Yushi Co., Ltd. High Urethane (HU50)
01-M)

Using the above materials, a stock solution of paint was prepared by mixing 70% of a colorless and transparent clear paint with 12% of a hardener and 18% of thinner, and when the weight of the stock solution was 100, the weight of the dispersant was 100%. 3. The weight of the anti-settling agent was 5 and the weight of the luminous material was mixed at a ratio of 30 to 40 to prepare a luminous paint according to the present invention. Here, in this example, a sedimentation inhibitor mixed with a dispersant manufactured by NOF Corporation was used as a dispersant and an antisettling agent.

The luminous paint according to the present embodiment has flexibility even when dried, so that it can be used for painting stretchable fabrics, urethane-based or vinyl-chloride-based materials, papers and the like that require bending. Can also be used.

The luminous paints according to Examples 1 to 3 described above are all conventional luminous paints using the same luminous material (Pikarico CP-05 manufactured by Chemitech Co., Ltd.), that is, an undercoat of white paint. Compared to the conventional luminous paint applied above, the light emission time for the same time of light irradiation was longer.

The luminous paints according to Examples 1 to 3 described above can be spray-painted by a usual machine. When these phosphorescent paints are applied by spraying, since the spraying is performed in a state where the phosphorescent material is diffused in the colorless transparent clear paint, the paint layer dried after the spraying looks almost transparent.

As described above, in the luminous paint according to the present invention, in a bright state such as during the day, the color and pattern of the surface of the object can be visually recognized in the same state as before the painting, and in a dark state such as at night, It has the feature that the painted surface emits light.

Here, when applying the luminous material according to this embodiment, an apparatus as shown in FIG. 4 was used.

In FIG. 4, reference numeral 11 denotes a coating machine such as a spray gun or a coating robot for performing a spraying operation, and 12 denotes a compressor for supplying compressed air used for spray coating to the coating machine 11. Reference numeral 13 denotes a paint supply device that supplies the phosphorescent paint to the coating machine 11, and a stirring device 14 is provided inside the paint supply device 13.

The coating machine 11 uses compressed air to atomize the luminous paint and sprays it onto the object 15 to be coated to perform the coating.

When the spray coating is performed while stirring the phosphorescent paint by the apparatus shown in FIG. 4, the density of the phosphorescent material in the paint layer can be made substantially uniform over the entire paint surface and the paint layer can be made substantially uniform. Can be made thin (50 μm or less). When the paint layer is formed thin by spray coating as described above, a thin paint layer is formed on the surface of the object 15 in a short drying time, and the following effects can be obtained. (1) Since the paint layer is thin, the transparency of the paint layer can be further increased. (2) Since the drying time can be shortened, the phosphorescent material diffused uniformly over the entire surface of the paint can be fixed in that state. (3) When the phosphorescent material emits light because the paint layer is thin,
The distance that the light passes through the paint layer is reduced, and as a result, the emission luminance can be increased.

On the layer formed by applying the luminous paint described in detail above, beads having a thin aluminum layer coated on a hemispherical surface of spherical glass are provided.

In the present embodiment, the disposition of the beads is based on the aqueous ink (R) of the REFLEC “V” series.
effective Technology Indu
(story Ltd: UK). This water-based ink contains beads made of spherical glass hemispheres of several tens of microns coated with a thin aluminum layer. In the present embodiment, the aqueous ink was spray-coated by a normal machine.

FIG. 1 is a sectional view of a painted surface on which the phosphorescent reflecting material according to the present embodiment is formed by painting.

In FIG. 1, reference numeral 2 denotes a colorless and transparent clear paint layer, 3 denotes a luminous material, and 4 denotes beads.

In the light-accumulating reflector according to the present embodiment thus configured, when light is irradiated, the light is reflected by the beads 4. At this time, the light that has passed through the layer made of the beads 4 or has been reflected by the beads 4 and has reached the clear colorless paint layer 2 is efficiently absorbed by the luminous material 3.
Then, when the surroundings become dark, the luminous material 3 emits light. When the phosphorescent reflecting material according to the present embodiment is viewed in a shade or the like, since the hemispherical portion of the beads 4 is transparent, the color and pattern of the material are in a state before the painting. It can be visually recognized in substantially the same state as.

As described above, the phosphorescent material according to the present embodiment can be easily formed by spraying a phosphorescent material and a reflective material on the same plane using a machine.

The phosphorescent reflector according to the present embodiment can be used as a suitable coating for the following products requiring high visibility regardless of day and night. Safety vests, safety blousons, helmets, hats used for construction work, etc.Tents, umbrellas, truck hoods, fishing nets, buinette sportswear, shoes, old people walking sticks, push cars, used outdoors
Garden stones and paving stones Digestion hoses, ropes, pet animal walking ropes used in firefighting Car bumpers, malls, spoilers, door mirrors,
Door knob Clock face, various switches, bicycles, toy toys Signs, road signs and poles, various road lines, evacuation guidance supplies, guardrails

[0042]

As described above, according to the present invention, a phosphorescent material and a reflecting material can be easily arranged on the same plane.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view for explaining a state of a phosphorescent reflection coating according to the present invention.

FIG. 2 is a cross-sectional view for explaining a state of a painted surface of the luminous paint according to the present invention.

FIG. 3 is an explanatory view of a conventional phosphorescent reflection coating.

FIG. 4 is a configuration diagram of an apparatus for performing spray coating.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 White paint layer 2 Colorless transparent clear paint layer 3 Luminescent material 4 Beads 5, 6 Area 11 Painting machine 12 Compressor 13 Paint supply device 14 Stirring device 15 Object

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D075 CB05 CB08 DC24 EA07 EA43 EC03 EC31 EC37 EC54 4J038 CG141 DB001 DG001 KA03 KA06 KA09 KA17 NA17 NA19 PB08 PC01 PC02 PC08

Claims (4)

[Claims] 1. A layer of a phosphorescent paint in which a dispersant, an anti-settling agent and a phosphorescent material are mixed in a stock solution of a colorless and transparent clear paint in which a curing agent and a thinner are mixed. A phosphorescent reflector having a structure in which beads coated with a thin aluminum layer are provided. 2. The luminous paint has a weight of 100 when the weight of the stock solution obtained by mixing 9% of the curing agent and 6% of the thinner in 85% of the colorless and clear paint is 100. On the other hand, the weight of the dispersant is 3, the weight of the anti-settling agent is 5, and the weight of the phosphorescent material is 30 to
The luminous reflection material according to claim 1, wherein the luminous paint is a luminous paint mixed at a ratio of 40. 3. The phosphorescent material according to claim 1, wherein the phosphorescent material is sufficiently segmented by a pebble ball mill. 4. A phosphorescent paint in which a dispersant, an anti-settling agent and a phosphorescent material are mixed with a paint stock solution obtained by mixing a curing agent and a thinner with a colorless transparent clear paint, using compressed air while stirring. Spraying on the object, forming a layer of luminous paint on the surface of the object, and disposing beads having a thin aluminum layer coated on a hemispherical surface of spherical glass, on the formed layer of luminous paint. A method for producing a phosphorescent reflector.