JP3150347U - Luminous body - Google Patents

Abstract

Provided is a luminous body that uses a phosphorescent substance (phosphorescent pigment), has sufficient light emission intensity and light emission time, and has sufficient durability to withstand use as a display board, a sign, or the like. SOLUTION: A luminous body in which a light reflecting layer is laminated on one side of a synthetic resin foam containing a phosphorescent substance and a light transmitting layer is laminated on the other side, and light from the outside is not attenuated. The light energy that reaches the phosphorescent material inside and is transmitted through the synthetic resin foam is reflected by the light reflecting layer and again passes through the synthetic resin foam to the surface side, so that the light energy is stored in the foam. By accumulating in the substance, the energy of light incident from the outside can be accumulated in the phosphorescent substance without waste, and the light emitted from the phosphorescent substance passes through the foam with many voids to the outside. As it reaches the surface sufficiently, the light emission intensity and the light emission time can be improved, and the surface of the synthetic resin foam containing the phosphorescent material is covered with a light transmission layer, so that it has sufficient durability to withstand use as a display board, sign, etc. Have. [Selection] Figure 1

Description

  The present invention relates to a light-emitting body used as a display board, a sign, a signboard, an advertisement article, a nameplate, a name tag, a decoration, a stationery, a key ring decoration, a toy, and the like, and more specifically, using a phosphorescent substance. The present invention relates to a light-emitting body that accumulates the light energy of daytime sunlight and illumination light, and emits light in the dark, such as in the dark or at night, by the accumulated light energy.

  Conventionally, various display panels using a luminous substance are known. For example, as a thing using a foam, the resin composition which mix | blended the luminous substance with polyolefin resin was bridge | crosslinked, the light-emitting crosslinked polyolefin resin foam which was made to foam, the attic hitting | working material worked in a dark place, It has been proposed to use it for wall materials, etc., for improving work safety and for nighttime safety sign cushion materials, toy materials, etc. in factories and roads (see Patent Document 1). In addition, a foam of a synthetic resin such as an ethylene vinyl acetate copolymer and a luminous resin foam in which a luminescent powder and further spherical transparent glass beads are dispersed are sewn into a bag shape, and then a mobile phone or PHS. As a case, it has been proposed to apply various signs and displays such as emergency guidance signs, as a light-emitting rope formed into a string, or to various display means such as a door knob night display, a key holder and a switch display. Yes. Furthermore, it has also been proposed to use a phosphorescent polyolefin foam obtained by mixing a phosphorescent pigment in a polyolefin resin as an anti-slip on a staircase, a handrail, a guide sign, a decorative article, a toy, a fishing tool, a stationery, an advertising article, etc. (for example, (See Patent Documents 3-5 and the like.) In addition to using a foam, a light reflecting layer that reflects light is laminated on the substrate, and a phosphorescent pigment is applied to the surface of the light reflecting layer so that a symbol or character made up of characters, figures, etc. A display board with a display is also proposed.

Japanese Patent Laid-Open No. 3-95237 JP-A-11-106540 JP 2000-336201 A JP 2003-335484 A JP 2004-35744 A JP 2005-25004 A

  However, as for the light-emitting body used for a display board etc. using the conventionally known luminous substance (phosphorescent pigment) as mentioned above, the thing currently widely used is hardly found now. . The main reason seems to be that it does not have sufficient light emission intensity and light emission time, and sufficient durability to withstand use as a display board or a sign. For example, a resin foam containing a phosphorescent substance as described in Patent Documents 1 to 5 is easily soiled due to its porosity, and has a problem in durability because its surface hardness is low. Further, in the case where the phosphorescent pigment is applied to the substrate (reflector) described in Patent Document 6, even if the phosphorescent pigment is applied thickly, it is disturbed by the surface phosphorescent material and sufficient light energy is applied to the lower phosphorescent material. However, even if the lower-layer phosphorescent material emits light, it is difficult to reach the outside because it is obstructed by the surface-layer phosphorescent material, so that sufficient emission intensity and emission time cannot be obtained. In view of the problems of conventional phosphors using phosphorescent substances (phosphorescent pigments) as described above, the present invention can provide sufficient emission intensity and emission time, and can be used as display boards, signs, etc. An object of the present invention is to provide a light-emitting body having sufficient durability that can withstand light.

The luminous body according to the present invention is formed by laminating a light reflection layer on one side of a synthetic resin foam containing a luminous substance and laminating a light transmission layer on the other side of the synthetic resin foam.
The light transmissive layer can be made of a synthetic resin having a light transmissive property such as transparent or translucent.
The said light reflection layer can be comprised with metals, such as a metal plate, metal foil, and a metal vapor deposition film.
The light reflecting layer may be provided on the substrate.
The light emitting body according to the present invention is provided with light reflecting layers on both surfaces, the synthetic resin foam is laminated on both surfaces, and a light transmissive layer is laminated on the surface of each synthetic resin foam. A double-sided light emitter made of
The light emitter according to the present invention can be formed in a planar shape.
The synthetic resin foam may be composed of a display portion and a background portion made of characters, figures, etc., and may be formed into a sheet shape in which either the display portion or the background portion is cut out.
Further, the synthetic resin foam can be formed into a shape such as a character or a figure to form a light emitter.

  Since the luminous body according to the present invention contains a phosphorescent substance in a synthetic resin foam, there are many voids due to foaming and there is little attenuation of light. Light energy is effectively accumulated by reaching not only the phosphorescent substance but also the phosphorescent substance inside, and the light emitted from the phosphorescent substance in the foam passes through the foam with many voids to the outside. Therefore, it is possible to obtain a strong light emission intensity and a long light emission time as compared with the case where the phosphorescent pigment is simply applied.

  Further, since the light reflecting layer is laminated on one surface of the synthetic resin foam containing the phosphorescent substance, the light transmitted through the synthetic resin foam is reflected by the light reflecting layer, and again in the synthetic resin foam. When the light is transmitted to the surface side (outside), the energy of the reflected light is accumulated in the phosphorescent substance in the foam. Thereby, the energy of light incident from the outside can be accumulated in the luminous substance in the synthetic resin foam without waste, and the emission intensity and emission time can be improved as compared with those without a reflective layer.

  Furthermore, since the surface of the synthetic resin foam containing the phosphorescent substance is covered with a light transmission layer, the light emitting body according to the present invention has sufficient durability to withstand use as a display board, a sign, or the like. Can be granted.

  By configuring the light transmission layer with a transparent, translucent or other light-transmitting synthetic resin, light from the outside can sufficiently reach the synthetic resin foam inside the light emitter, and the surface of the foam Can be protected to provide sufficient durability to withstand long-term use.

  By constituting the light reflecting layer with a metal such as a metal plate, a metal foil, or a metal vapor deposition film, the light transmitted through the synthetic resin foam is surely reflected, and the luminous material in the synthetic resin foam is efficiently reflected. Light energy can be accumulated.

  By laminating the light reflecting layer on the substrate, the strength of the light emitter can be further improved, and a light emitter having sufficient strength as a display panel, a sign, or the like can be obtained. Further, a light reflection layer can be provided on the substrate by metal vapor deposition.

  By making the light reflection layer have double-sided reflection and laminating the synthetic resin foam and the light-transmitting layer on the two reflection surfaces, a double-sided light emitting body can be obtained.

  The light-emitting body according to the present invention is formed into a planar shape such as a plate shape or a sheet shape, so that a separate light source is not required, and a display plate, a sign, a signboard, or an advertisement article that emits light in the dark, such as in a dark place or at night As a nameplate, name tag, decoration, stationery, toy, etc., it is possible to constitute a light emitting body that is simple and easy to handle.

  As said synthetic resin foam, it has a display part and a background part which consist of a character, a figure, etc., and comprises either a display part or a background part by cutting out either one of the display part or a background part. Only one side can emit light and the display portion can be made to stand out.

  In addition, by forming the synthetic resin foam in the shape of characters, figures, etc., the entire display board, sign, nameplate, name tag, decoration, stationery, signboard, advertising goods, etc. can be made to emit light.

(A) is the front view of the nameplate which shows one Embodiment of the light-emitting body based on this invention, (B) is an exploded perspective view similarly. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is sectional drawing which shows other embodiment of the light-emitting body based on this invention. It is a front view of the label | marker which shows other embodiment of the light-emitting body based on this invention. It is a front view of the label | marker which shows other embodiment of the light-emitting body based on this invention. It is a front view which shows embodiment which formed the light-emitting body which concerns on this invention in the shape of a figure. It is a front view which shows embodiment which formed the light-emitting body based on this invention in the shape of the character (animal). It is sectional drawing which shows other embodiment of the light-emitting body based on this invention.

  1 to 3 show an embodiment in which a light emitter according to the present invention is formed in a plate shape and used as a nameplate. The light emitter 1 includes a display unit 3 representing a name and a background unit 4. As shown in FIGS. 2 and 3, the light-emitting body 1 is formed by laminating a substrate 7 provided with a light reflecting layer 6 on the back surface side (the lower surface in FIGS. 2 and 3) of the synthetic resin foam 2. The light transmission layer 5 is laminated on the front surface side (the upper surface in FIGS. 2 and 3), and is integrated by a fixing means 10 such as a screw penetrating from the front light transmission layer 5 to the back substrate 7. The method of laminating and integrating the synthetic resin foam 2, the light reflecting layer 6, the substrate 7, the light transmitting layer 5, etc. is not particularly limited, and various methods such as bonding with an adhesive, heat sealing, fixing with screws, etc. Means can be employed. 2 and 3, the outer peripheral edge of the light emitter 1 may be sealed with a sealing 11 provided between the substrate 7 on the back surface side and the light transmitting layer 6 on the front surface side.

  The synthetic resin foam 2 is in the form of a sheet, and the name part (display part 3) of the nameplate is cut out. The cutout 8 may be a gap or may be embedded with other materials. When the air gap remains, the light reflecting layer 6 can be seen through the light transmitting layer 5 on the surface side.

  The synthetic resin constituting the synthetic resin foam 2 is not particularly limited, and may be a thermoplastic resin or a thermosetting resin. For example, a polyolefin resin such as polyethylene, polypropylene, ethylene vinyl acetate copolymer; epoxy resin; polyurethane A resin or the like can be used, and a plurality of resins can be used in combination.

  The synthetic resin foam 2 contains a phosphorescent substance. The phosphorescent substance to be used is not particularly limited, and for example, a known phosphorescent substance such as strontium aluminate or zinc sulfide can be used.

  The molding method of the synthetic resin foam 2 is not particularly limited. For example, various moldings such as in-mold foam molding, extrusion foam molding, etc., using as a raw material a resin composition comprising the synthetic resin, foaming agent, cross-linking agent, phosphorescent substance, and the like It can be molded by the method. Alternatively, foamable resin particles (primary particles) can be produced in advance from a resin composition comprising a synthetic resin, a foaming agent, a phosphorescent substance, and the like, and then molded by a bead foaming method in which this is foamed in the mold. Furthermore, it can be formed into a block shape or a thick plate shape and then cut into a desired size and shape for use.

  The foaming ratio of the synthetic resin foam 2 is not particularly limited. However, if the foaming ratio is too small, the voids are small and light is easily attenuated. Therefore, the foaming ratio of the foam is preferably at least twice or more. However, it is usually about 60 times, preferably about 40 times, and more preferably about 30 times. This is because if the expansion ratio is too large, sufficient strength may not be obtained. However, in the light-emitting body 1 of the present invention, the surface of the synthetic resin foam 2 is covered with the light transmission layer 5, Since the light reflecting layer 6 (or the substrate 7 in some embodiments) is provided, the foaming ratio of the synthetic resin foam 2 can be considerably increased.

  There is no particular limitation on the thickness of the synthetic resin foam 2, and it depends on the size of the light-emitting body 1. However, in the case of a sheet, the thickness is about 1 mm to 100 mm, usually about several tens mm. Good.

  The substrate 7 provided on the back surface of the synthetic resin foam 2 is composed of various plate materials or sheet materials such as a synthetic resin plate, a metal plate, a wooden plate, and a paper plate, and a metal plate such as aluminum or stainless steel, a metal on the surface thereof. The light reflecting layer 6 is formed by laminating foil or the like or depositing metal. Further, the substrate 7 may be composed of an aluminum plate or the like whose surface is a light reflection layer by mirror finishing or the like, and the light reflection layer 6 and the substrate 7 may be used together. Moreover, the board | substrate 7 and the light reflection layer 6 can also be comprised with a mirror.

  The thickness of the board | substrate 7 is not specifically limited, According to the use of the light-emitting body 1, a magnitude | size, the material of a board | substrate, etc., it can select suitably. Moreover, the board | substrate 7 can be comprised with a soft synthetic resin sheet, a synthetic resin film, etc., a metal foil can be laminated | stacked on the surface, or a metal vapor deposition film | membrane can be provided, and it can also be made flexible.

  The thickness of the light reflection layer 6 is not particularly limited, and various thicknesses can be used from a metal plate having a thickness of several millimeters to a foil having a thickness of a micron unit and a vapor deposition film. The light reflecting layer 6 is not necessarily made of metal, and can be formed on the substrate 7 by applying a paint having a metallic luster or a white paint.

  As the light-transmitting layer 5 covering the surface of the light-emitting body 1, as long as it has a light-transmitting property that transmits light from the outside and can supply light energy to the phosphorescent substance contained in the synthetic resin foam 2, It is not specifically limited, It can comprise with various materials, such as a synthetic resin board, a sheet | seat or a film, a glass plate, a nonwoven fabric, a woven fabric, a knitted fabric, paper. As the synthetic resin, various kinds of general transparent synthetic resin plates, synthetic resin sheets, synthetic resin films such as acrylic, polyethylene, nylon, and vinyl chloride resin can be used. Further, the light transmission layer 5 and the substrate 7 can be made of the same material, for example, a transparent acrylic plate, a vinyl chloride sheet or the like. For applications such as signboards, signs, and nameplates, it is preferable that the light-emitting layer 1 and the substrate 7 be made of a plate-like and rigid material so that the entire light-emitting body 1 has high rigidity. Moreover, in the case of a schoolchild's name tag, or a toy that imitates a character as described later, it is preferable to be composed of a soft material such as a soft vinyl chloride resin. It is composed of a flexible deformable material such as a metal vapor-deposited film or a metal foil, and the synthetic resin foam 2 containing a luminous substance is also composed of a flexible deformable material and an expansion ratio. Thus, a flexible light emitter can be obtained as a whole.

  In the light emitter 1 of the present invention as described above, for example, light energy is accumulated in the phosphorescent material in the synthetic resin foam 2 during the daytime, and light is emitted from the phosphorescent material at night. Therefore, it can be applied to a variety of display boards, signs, signboards, advertising supplies, nameplates, name tags, ornaments, stationery, key ring decorations, etc. as planar light emitters that do not require a light source.

  Next, what is shown in FIG. 4 is sectional drawing which shows other embodiment of the light-emitting body based on this invention. In this luminous body 1A, a light reflecting plate 6A such as a metal plate or a mirror that also serves as a substrate is laminated on the back surface of the synthetic resin foam 2 containing a phosphorescent substance. A light transmitting layer 5A such as a resin sheet or a synthetic resin film is laminated, and the peripheral edge thereof is directly bonded to the light reflecting plate 6A which also serves as a substrate. Both the light reflection plate 6A and the light transmission layer 5A may be made of a thermoplastic resin, and the peripheral portion may be bonded by heat sealing.

  FIG. 5 and FIG. 6 show an example in which a guide sign is configured with a light emitter according to the present invention. These light emitters 1B and 1C also have a basic structure in which a light reflecting layer is provided on one surface of a synthetic resin foam containing a phosphorescent substance and a light transmitting layer is provided on the other surface, as shown in FIGS. The sheet-like synthetic resin foam is cut out, and the display portion 3 such as the letters “emergency exit” in the light emitter 1B in FIG. 5 and the figure (arrow) in the light emitter 1C in FIG. 4 is configured, and either one of the display unit 3 and the background unit 4 is caused to emit light, thereby enabling light emission display.

  Furthermore, what is shown to FIG. 7, 8 is embodiment which formed the synthetic resin foam containing a luminous substance in various shapes, such as a figure (* type), a character (animal), or a character like a figure example. Is shown. These light emitters 1D and 1E also have a light reflection layer on one side and a light transmission layer on the other side of a synthetic resin foam containing a phosphorescent substance. Is transmitted through the light transmission layer and incident on the inside, light energy is accumulated in the luminous material contained in the synthetic resin foam, emitted in the dark at night or in dark places, and the light accumulated in the luminous material The light emitters 1D and 1E are configured to appear in a shape such as a figure, a character, and a character by energy.

  In the above light emitters 1 to 1E, the embodiment of the single-sided light emitter in which the light reflecting layer 6 is laminated on one side of the synthetic resin foam 2 containing the phosphorescent substance and the light transmitting layer 5 is laminated on the other side has been described. However, this can be a double-sided light emitter. For example, what is shown in FIG. 9 is a cross-sectional view showing an embodiment of a light emitter 1F configured to emit light on both sides. For example, the light-emitting body 1F includes a double-sided reflection plate 6B having a reflecting surface on both sides, such as an aluminum plate having mirror-finished front and back surfaces, and two sheet-like synthetic resin foams 2 and 2 containing a phosphorescent substance. The light transmission layers 5 and 5 made of a synthetic resin sheet, a synthetic resin film or the like are provided on the surface of each synthetic resin foam 2 and the outer peripheral edge portion is closely fixed by heat sealing or the like. The light (both sides) reflector 6B, the synthetic resin foam 2, the light transmission layer 5 and the like employ various materials, shapes, and sizes as in the light emitters of the other embodiments described above. In addition, the method of laminating and integrating the laminated synthetic resin foam 2, the light reflecting plate (layer) 6B, and the light transmitting layer 5 is not particularly limited. For example, various means can be adopted.

  According to the illuminant 1F capable of emitting light on both sides as described above, each of both surfaces of the illuminant 1F can emit light separately, and the kind of phosphorescent substance contained in the synthetic resin foam on each surface can be changed. By making the color development different, it is possible to obtain a light emitter that emits light in different colors on each surface.

DESCRIPTION OF SYMBOLS 1, 1A-1F Light-emitting body 2 Synthetic resin foam 3 Display part 4 Background part 5, 5A Light transmission layer 6 Light reflection layer 6A Light reflection board 6B Double-sided reflection board 7 Board | substrate 8 Cutout part 10 Fixing means 11 Sealing

Claims (8)

  A light emitting body obtained by laminating a light reflecting layer on one side of a synthetic resin foam containing a phosphorescent substance and laminating a light transmitting layer on the other side of the synthetic resin foam.   The light-emitting body according to claim 1, wherein the light transmission layer is made of a synthetic resin.   The light emitting body according to claim 1, wherein the light reflecting layer is made of a metal.   The light-emitting body according to claim 1, wherein the light reflecting layer is laminated on a substrate.   Claims: The light reflecting layer has reflecting surfaces on both sides, the synthetic resin foam is laminated on both reflecting surfaces, a light transmitting layer is laminated on the surface of each synthetic resin foam, and both surfaces are light transmitting layers. Item 6. A light emitter according to item 5.   It is planar, The light-emitting body in any one of Claims 1-5.   The synthetic resin foam is composed of a display portion composed of characters, figures, and the like and a background portion other than that, and is configured in a sheet shape in which either the display portion or the background portion is cut out. The light emitter according to any one of 6.   The light emitting body according to any one of claims 1 to 6, wherein the synthetic resin foam is formed into a shape such as a character or a figure.

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