WO1999062046A1

WO1999062046A1 - Phosphorescent sign

Info

Publication number: WO1999062046A1
Application number: PCT/JP1998/002353
Authority: WO
Inventors: Itaru Fukamachi
Original assignee: Nippon Tokuso Co., Ltd.
Priority date: 1998-05-28
Filing date: 1998-05-28
Publication date: 1999-12-02
Also published as: AU7453598A

Abstract

A phosphorescent sign which permits the details of display to be recognized satisfactorily for a long period of time and which can be disposed in an arbitrary place. The phosphorescent sign has a magnet, a phosphorescent sheet bonded to an upper surface of the magnet, and a transparent protective film covering the sheet. The sign is attached to a support made from a ferromagnetic material, such as iron, by an attractive force of the magnet. Accordingly, it can be disposed in an arbitrary place. It can also be removed and transferred to another place. Therefore, when it is necessary to temporarily guide people to some place, or when the necessity of urgently removing this sign happens, operations for fixing and removing the sign can be simplified.

Description

Technical field

The present invention relates to a luminous sign. Background art

Conventionally, for example, in order to guide a person to a safe place when a fire or other abnormality occurs in a building, or to guide a vehicle to a predetermined place on a road, etc. Is provided, and a person is guided by visually recognizing the displayed content of the guide sign irradiated with sunlight, illumination light, or the like.

By the way, the luminous type formed by applying a luminous material to the surface of a plate-like object so that people can see the guide sign even at night when illumination light cannot be applied to the guide sign. Guide signs, that is, luminous signs are provided.

However, with the conventional luminous sign, the luminous brightness gradually decreases with time and the visibility also decreases, so that the display content of the luminous sign cannot be sufficiently recognized for a long time.

In addition, it is necessary to incorporate luminous signs into corridors in buildings and guide pillars installed along roads, which not only limits the places where luminous signs are installed, but also Cannot be removed or moved to another location.

The present invention has been made to solve the problems of the conventional luminous signs, and to provide a luminous sign which can sufficiently recognize the display content for a long time and can be arranged at an arbitrary place. Aim. Disclosure of the invention

Therefore, in the phosphorescent marker of the present invention, a magnet, a phosphorescent sheet adhered on the magnet, and a transparent protective film coated on the phosphorescent sheet are provided. Having.

In this case, the phosphorescent marker is attached to a support made of a ferromagnetic material such as iron by the attraction force of the magnet. Therefore, the luminous sign can be arranged at any place.

In addition, since the luminous sign can be removed or moved to another place, for example, when it is necessary to temporarily guide a person, or when it is necessary to remove the luminous sign urgently, etc. The work for attaching and detaching the luminous sign can be simplified.

In another luminous sign of the present invention, the magnet, the luminous sheet and the protective film are formed of a material having flexibility.

In this case, for example, even if the support is curved, the phosphorescent mark can be attached according to the shape of the support.

In still another luminous sign of the present invention, an image is printed on the surface of the luminous sheet.

In this case, the visibility of the phosphorescent sheet does not decrease even after a long time, so that the display content can be sufficiently recognized for a long time.

For some images, the display content can be changed simply by changing the direction in which the luminous sign is attached. Therefore, it is not necessary to manufacture many kinds of phosphorescent signs, so that the cost of the phosphorescent signs can be reduced.

In still another luminous sign of the present invention, the luminous sheet further comprises an adhesive layer, a reflective layer having a high reflectivity, and a luminous layer coated on the reflective layer.

In this case, when the phosphorescent sheet is adhered onto the magnet, an adhesive layer and a reflective layer are interposed between the magnet and the phosphorescent layer. When the magnet is bent, the magnet is bent, and the shearing stress generated by the bending is absorbed by the adhesive layer and the reflective layer. Therefore, no cracks are generated in the phosphorescent layer, and no distortion occurs in the image. As a result, the durability of the phosphorescent sign can be improved.

In still another phosphorescent marker according to the present invention, the phosphorescent layer is made of a phosphorescent material mixture containing a phosphorescent material, and the phosphorescent material includes strontium and aluminum. It is composed of a mixture obtained by mixing a first luminous component mainly composed of zinc and sulfur and a second luminous component mainly composed of zinc and sulfur.

In this case, the luminous material can continue to emit light while dimming for a long time of 10 hours or more. In addition, by irradiating light for a few seconds during the dimming of the phosphorescent material, the phosphorescent material can be restored to the initial light emission luminance, and the visibility of the phosphorescent sign can be enhanced. . Therefore, the display contents can be sufficiently recognized for a long time. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an exploded perspective view of a luminous sign according to the embodiment of the present invention, and FIG. 2 is a cross-sectional view of the luminous sign according to the embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail.

FIG. 1 is an exploded perspective view of a luminous sign according to the embodiment of the present invention, and FIG. 2 is a cross-sectional view of the luminous sign according to the embodiment of the present invention.

In the figure, reference numeral 10 denotes a luminous sign, 11 denotes a magnet having flexibility and a thickness of about 0.8 [mm], and 12 denotes a magnet adhered on the magnet 11. A light-storing sheet having flexibility and a thickness of about 0.25 [mm], 13 is coated on the light-storing sheet 12 and has flexibility and a thickness of 2.5 [mm]. ] This is a protective film made of a transparent urethane resin.

The phosphorescent sheet 12 not only emits light while dimming for a long time of 10 hours or more, but also restores the initial light emission luminance by irradiating light for only a few seconds. It is formed of a phosphorescent material that can be used. Then, on the surface of the phosphorescent sheet 12, display contents, that is, images 21 such as characters and patterns are printed. Therefore, the visibility of the luminous sign 10 does not decrease even after a long time, and the image 21 can be sufficiently recognized for a long time. In the present embodiment, the image 21 is a force formed by applying an ink or the like to a portion of a character or pattern on the light-storing sheet 12, other than a character or pattern on the light-storing sheet 12. of It can also be formed by applying an ink or the like to the portion.

Since the phosphorescent marker 10 has the magnet 11, it can be attached to a support (not shown) made of a ferromagnetic material such as iron by the attraction force of the magnet 11. Therefore, the place where the luminous sign 10 is provided is not limited, and it can be provided at an arbitrary place. In addition, the luminous sign 10 can be removed or moved to another place. For example, when it is necessary to temporarily guide a person, or when it is necessary to remove the luminescent sign 10 urgently, the work for attaching and removing the luminescent sign 10 can be simplified. it can.

Further, depending on the image 21, the display content can be changed only by changing the direction in which the luminous sign 10 is attached. For example, when the image 21 is an arrow, the direction of the arrow can be changed by changing the direction in which the luminous sign 10 is attached. Therefore, it is not necessary to manufacture many kinds of luminous signs 10, so that the cost of luminous signs 10 can be reduced. In the present embodiment, an anisotropic magnet is used as the magnet 11, and the anisotropic magnet has a thickness of about 0.8 [111 111] and 45 [g / g]. cm ² ]. Since the magnet 11, the phosphorescent sheet 12 and the protective film 13 all have flexibility, the phosphorescent marker 10 also has flexibility. Therefore, for example, even if the support is curved, the luminous marker 10 can be attached according to the shape of the support rest.

Incidentally, the phosphorescent sheet 12 includes an adhesive layer 14 for adhering the phosphorescent sheet 12 on the magnet 11, a white layer 15 as a reflective layer having a high reflectance, and It consists of a phosphorescent layer 16 coated on a white layer 15.

In this case, when the phosphorescent sheet 12 is adhered on the magnet 11, the adhesive layer 14 and the white layer 15 are interposed between the magnet 11 and the phosphorescent layer 16. Therefore, for example, when the phosphorescent marker 10 is attached to a curved support, the magnet 11 is curved, but the shear stress generated by the curvature is caused by the adhesive layer 14 and the white layer 15. Absorbed. Therefore, cracks do not occur in the light storage layer 16 and no distortion occurs in the image 21. As a result, the durability of the phosphorescent marker 10 can be improved. In addition, when the phosphorescent layer 16 is irradiated with light to restore the phosphorescent material to the initial light emission luminance, a part of the light penetrates the phosphorescent layer 16 to irradiate the white layer 15, and the white light Since the reflectance of the layer 15 is high, the part of the light is reflected by the white layer 15 and absorbed by the light storage layer 16. Therefore, the phosphorescent material can be efficiently restored to the initial light emission luminance.

Next, a method of manufacturing the luminous sign 10 will be described.

First, a PET film (not shown) is formed, and a phosphorescent material mixture containing the phosphorescent material is applied on the PET film to form the phosphorescent layer 16. Next, a white layer 15 is formed by applying a vinyl chloride resin on the luminous layer 16, and the adhesive layer 14 is coated on the white layer 15. When the phosphorescent sheet 12 is formed in this manner, the adhesive layer 14 and the magnet 11 are opposed to each other, and the phosphorescent sheet 12 is adhered onto the magnet 11. .

Next, the PET film on the surface of the phosphorescent sheet 12 is strengthened to print the image 21 on the surface of the phosphorescent layer 16.

Then, a protective film 13 is coated on the luminous layer 16 after the printing.

The phosphorescent material mixture was obtained by mixing 100 parts by weight of a vinyl chloride resin, 35 parts by weight of a plasticizer, 5 to 7 parts by weight of a stabilizer and an additive, and 80 parts by weight of a phosphorescent material. is there.

The phosphorescent material is composed of a mixture obtained by mixing a first phosphorescent component containing strontium and aluminum as main components and a second phosphorescent component containing zinc and sulfur as main components.

The second phosphorescent component contains magnesium, aluminum, silicon, chlorine, potassium, calcium, chromium, steel, and cadmium in a main component containing about 71% (%) of zinc and about 22% (%) of sulfur. Of about 7%.

The second light-storing component is capable of continuing to emit light while dimming, that is, the light-emitting time is short. For example, even when the second phosphorescent component is irradiated with light for 15 minutes or more, the light emission time is about 1 hour at the longest. However, the second phosphorescent component has a high light energy absorption property, and the initial light emission is obtained only by irradiating light for a few seconds. Restores brightness.

On the other hand, the first light storage component has a long light emission time. For example, when the first light storage component is irradiated with light for 15 minutes or more, the light is continuously emitted while dimming for a long time of 10 hours or more.

In the present embodiment, the first light-storing component and the second light-storing component are mixed, so that the high light energy absorption of the second light-storing component affects the first light-storing component. To increase the light energy absorption of the first phosphorescent component. Therefore, the phosphorescent material not only emits light while dimming for a long time of 10 hours or more, but also recovers the initial luminous intensity by irradiating light for only a few seconds. I do.

As a result, the image 21 can be sufficiently recognized for a long time. Next, examples of the phosphorescent material of the present invention will be described.

In this case, the first light storage component has the following component configuration. In this example, [%] is expressed on a weight basis.

1.A 1 Aluminum 2 1 {%)

2. Si Ca 0. 05 2 (%)

3. S sulfur 0.06 (%)

4. K potassium 0.0 1 1 [%]

5.Ca calcium 0.0 8 6 (%)

6. Fe iron 0.1 2 [%]

7. S r Strontium 7 7 {%)

8. Eu Europium 0.9 3 (%)

9. Dy dysprosm 0.9.7 (%)

On the other hand, the second phosphorescent component has the following component configuration.

1.g magnesium 4.6 (%)

2.A 1 Aluminum 0.0 3 8 (%)

3. Si cage 1.2 (%)

4. S sulfur 2 2 {%)

5. C 1 chlorine 0.0 1 2 [%] 6. K potassium 0.2 5 [%]

7. C a calcium 0.1 4 (%)

8. Cr chrome 0.0 1 3 [%]

9. Cu copper 0.0 2 7 [%]

1 0.Zn Zinc 7 1 [%]

1 1. C d cadmium 0.4 0 [%]

In the following examples, the first and second phosphorescent components alone have sufficiently high emission luminance even when irradiated with light only for the irradiation time (5 seconds, 10 seconds, 15 seconds). I could not confirm.

(Example 1)

In this case, 100 parts by weight of the first light-storing component and 50 parts by weight of the second light-storing component are mixed and thoroughly stirred, and the obtained mixture is placed in a black plastic bag and put into a black plastic bag. The light was blocked and left for 60 minutes to make a sample.

Then, the sample was taken out of the plastic bag by dividing into 50 parts by weight in three parts, and the sample was irradiated with light by a fluorescent lamp having an illuminance of 100 [LX] for 5 seconds, 10 seconds and 15 seconds, respectively. did. After that, when each sample was placed in the dark and the emission luminance was confirmed, high emission luminance could be confirmed in the sample irradiated with light for 15 seconds. As described above, in Example 1, high emission luminance was not confirmed in the sample irradiated with light for 5 seconds and in the sample irradiated with light for 10 seconds because the amount of the second light-storing component was smaller than that of the first light-storing component. This is probably because the amount was small.

(Example 2)

In this case, 50 parts by weight of the first light-storing component and 100 parts by weight of the second light-storing component are mixed and sufficiently stirred, and the obtained mixture is placed in a black plastic bag to block external light. The sample was left for 60 minutes to prepare a sample.

Then, the sample was taken out of the plastic bag by dividing into 50 parts by weight in three parts, and the sample was irradiated with light by a fluorescent lamp having an illuminance of 100 [X] for 5 seconds, 10 seconds, and 15 seconds, respectively. Irradiated. After that, when each sample was placed in the dark and the emission luminance was confirmed, a high emission luminance could be confirmed in any of the samples.

However, in Example 2, each sample stopped emitting light in a short time. (Example 3)

In this case, 100 parts by weight of the first light-storing component and 100 parts by weight of the second light-storing component are mixed and sufficiently stirred, and the obtained mixture is placed in a black plastic bag to emit light from the outside. Was cut off and left as a sample for 60 minutes.

Then, the sample was taken out of the plastic bag in three portions of 60 parts by weight, and the sample was irradiated with light by a fluorescent lamp having an illuminance of 100 [LX] for 5 seconds, 10 seconds and 15 seconds, respectively. did. After that, when each sample was placed in the dark and the emission luminance was confirmed, a high emission luminance could be confirmed in any of the samples.

Further, in Example 3, each sample continued to emit light for a much longer time than in Example 2. In each of Examples 1 to 3, when light was irradiated for about 60 seconds, high light emission was obtained for all the samples. The brightness could be confirmed. In other words, it can be seen that the light energy absorption is higher than that of the conventional phosphorescent material.

Further, in any of Examples 1 to 3, after irradiating 1000 [LX] light for 15 minutes or more, the sample was placed in the dark and the emission time was confirmed. It was found that light was emitted while dimming over a long period of time. Then, during the dimming of each sample, it was found that when the sample was irradiated with 100 [L X] light for 3 to 4 seconds, each sample recovered to almost the initial luminance.

From the test results in the above Examples 1 to 3, when the phosphorescent material in the present embodiment is actually used, the first phosphorescent component is 100 parts by weight in consideration of light energy absorption and light emission time. On the other hand, it can be said that Example 3 in which 100 parts by weight of the second light storage component is mixed is most suitable. '' When the content of the first phosphorescent component is 80% by weight or more, the light energy absorption is almost the same as that of the first phosphorescent component alone. When the content is 40% by weight or less, the light emission time becomes shorter than that of the case where the first phosphorescent component is used alone.

In each of the first to third embodiments, the first light-storing component having the above-described component configuration is used. However, the first light-storing component mainly includes strontium and aluminum. If so, use another phosphorescent component with a different component composition Even if it does, the same effect can be obtained. Further, as long as the second phosphorescent component has zinc and sulfur as main components, the same effect can be obtained by using another phosphorescent component having a different component configuration.

It should be noted that the present invention is not limited to the above-described embodiment and examples, and various modifications can be made based on the gist of the present invention, and they are not excluded from the scope of the present invention. Industrial applicability

It can be used as a guide sign for guiding people and vehicles on buildings and roads.

Claims

The scope of the claims

1. (a) Magnet and

(b) a phosphorescent sheet adhered on the magnet,

(c) having a transparent protective film coated on the phosphorescent sheet.

2. The luminous sign according to claim 1, wherein the magnet, the luminous sheet and the protective film are formed of a flexible material.

3. The luminous sign according to claim 1, wherein an image is printed on the surface of the luminous sheet.

4. The luminous sign according to claim 1, wherein the luminous sheet comprises an adhesive layer, a reflective layer having a high reflectivity, and a luminous layer coated on the reflective layer.

5. The light-storing layer is composed of a light-storing material mixture containing a light-storing material, wherein the light-storing material is a first light-storing component mainly containing strontium and aluminum, and a second light-storing component mainly containing zinc and sulfur. 5. The luminescent label according to claim 4, which comprises a mixture obtained by mixing the components.