JP3201516U - Phosphorescent emitter - Google Patents

Abstract

Provided is a luminous phosphor that makes it possible to see a printed display layer at night or in a dark place, and to suppress deterioration of the luminous layer. A phosphorescent light emitter includes a transparent surface film. The print display layer 11 is preferably formed on the back surface of the surface film 10 by digital printing. The phosphorescent layer 12 is coated on the back side of the print display layer 11. More preferably, a backing material 13 is provided on the back surface of the phosphorescent layer 12. [Selection] Figure 2

Description

  The present invention relates to a luminous phosphor that emits light by phosphorescence.

  For example, Patent Document 1 discloses a light-emitting poster using phosphorescent ink. The letter portion of the poster is printed with phosphorescent ink.

Utility model registration No. 3095767

  In the above-mentioned literature, since the phosphorescent ink is exposed on the front side of the product, it is easily deteriorated, damaged or altered.

In order to solve the above problems, the phosphorescent emitter according to the present invention is:
A transparent surface film,
A printed display layer printed on the back of the surface film;
A phosphorescent layer coated on the back side of the printed display layer;
It is provided with.
According to this phosphorescent light emitter, the printed display layer can be visually recognized by the luminous layer emitting light even at night or in a dark place. Since the phosphorescent layer is provided on the back surface of the printed display layer and is eventually covered with the surface film, it is possible to suppress or prevent deterioration, damage, alteration, and the like of the phosphorescent layer.

  It is preferable that the print display layer is formed by digital printing. As a result, a large variety of small-scale phosphorescent emitters can be created.

  It is preferable that a backing material is provided on the back surface of the luminous layer. Thereby, deterioration, damage, alteration, etc. of the phosphorescent layer can be prevented more reliably.

  According to the present invention, the printed display layer can be made visible by the luminous layer emitting light even at night or in a dark place. Furthermore, since the phosphorescent layer is provided on the back surface of the printed display layer and is eventually covered with the surface film, it is possible to suppress or prevent deterioration, damage, alteration, etc. of the phosphorescent layer.

FIG. 1 is a plan view of a phosphorescent emitter according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the phosphorescent light emitter.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows the phosphorescent light emitter 1 in a simplified manner. The phosphorescent light emitter 1 is applied as a display body such as a poster, an advertisement flyer, packaging, decoration, a signboard, a sign, or the like.

  As shown in FIG. 2, the phosphorescent light emitter 1 includes a surface film 10, a print display layer 11, a phosphorescent layer 12, and a backing material 13. These are laminated in order from the front side (front side in FIG. 1 and upper side in FIG. 2). In FIG. 2, the thickness of each layer 10, 11, 12, 13 is exaggerated.

  The surface film 10 is made of a transparent material and has translucency. Examples of the material of the surface film 10 include resins such as polyethylene terephthalate (PET), polyethylene (PE), and polypropylene (PP), but are not limited thereto. Preferably, the surface film 10 is made of PET. The thickness of the surface film 10 is, for example, about several tens of μm to several mm, but is not limited thereto.

  As shown in FIG. 2, a print display layer 11 is formed on the back surface (the lower surface in FIG. 2) of the surface film 10. As schematically shown in FIG. 1, the print display layer 11 includes a display 11 a of characters, figures, pictures, designs, designs, patterns, photographic images, and the like. The print display layer 11 is formed by digital printing on the surface film 10 using a digital printing machine. The ink for digital printing is not particularly limited, but preferably has transparency to light (particularly ultraviolet rays). The thickness of the print display layer 11 is, for example, about several μm to several hundred μm, but is not limited thereto.

  As shown in FIG. 2, a phosphorescent layer 12 is coated on the back surface of the print display layer 11 (the surface opposite to the surface film 10 side, the lower surface in FIG. 2). The phosphorescent layer 12 is provided on the entire back surface of the print display layer 11. In other words, the entire phosphorescent layer 12 is covered with the surface film 10 via the printed display layer 11. The thickness of the phosphorescent layer 12 is, for example, about several μm to several hundred μm, but is not limited thereto.

The phosphorescent layer 12 includes phosphorescent particles 12a and a binder 12b (binder). The phosphorescent particles 12a are made of crystals of a substance disclosed in the above-mentioned Patent Document 1, such as CaS: Bi, CaSnS: Bi, ZnS: Cu, ZnS: Ag, ZnS: Mn, ZnCdS: Cu, and ZnCdS: Cu. It is configured. The particle diameter of the phosphorescent particles 12a is, for example, about several μm to several hundred μm, but is not limited thereto. The phosphorescent particles 12a have the property of absorbing and exciting light energy and emitting light in the dark. In particular, it is preferable that the absorption rate with respect to ultraviolet rays is high. Moreover, it is preferable that the luminous particles 12a emit light that is as close to white as possible. Thereby, the color change of the print display layer 11 can be suppressed. From the viewpoint of luminous properties, it is preferable that the particle diameter of the phosphorescent particles 12a is as large as possible.
The light that excites the phosphorescent particles 12a is not limited to sunlight, and may be illumination light.

  A large number of phosphorescent particles 12a, 12a... The powder-like phosphorescent particles 12a, 12a... Are kneaded in the binder 12b, whereby the cement-like phosphorescent layer 12 is formed. The phosphorescent particles 12a are dispersed and confined in the binder 12b. Examples of the material of the binder 12b include urethane-based and epoxy-based resins. The binder 12b is preferably transparent, but may be white. The phosphorescent layer 12 may also serve as the white solid layer on the backmost side of the print display layer 11. Furthermore, the binder 12b preferably has water resistance.

  As shown by a two-dot chain line in FIG. 2, a backing material 13 is provided on the back side (lower side in FIG. 2) of the phosphorescent layer 12. The backing material 13 is in the form of a sheet or plate, but is not necessarily limited thereto, and may be in a block shape or a curved shape depending on the use of the phosphorescent light emitter 1. The material of the backing material 13 is appropriately selected depending on the use of the phosphorescent light emitter 1, and is, for example, acrylic, glass, resin, paper, but may be metal, wood, ceramic, or the like. The backing material 13 may be transparent or non-transparent depending on the use of the phosphorescent light emitter 1. The thickness of the backing material 13 is appropriately set, and is, for example, about several tens of μm to several mm.

  A lining material 13 is fixed to the phosphorescent light emitter 1. As fixing means, adhesion, welding, pinning, screwing or the like can be applied. In the case of bonding or welding, the entire surface of the phosphorescent light emitting body 1 may be bonded or welded to the backing material 13, or only a part (for example, an end portion) may be bonded or welded. The lining material 13 is cylindrical, and the phosphorescent light emitting body 1 may be wound around this.

The phosphorescent light emitter 1 is manufactured as follows.
The printing display layer 11 is digitally printed on the back surface of the surface film 10 using a digital printing machine.
The print data of the print display layer 11 can be created by a personal computer (PC) or the like.
Since the print data can be easily corrected and changed each time printing is performed, a large variety of small-quantity phosphorescent emitters 1 can be manufactured.

The phosphorescent layer 12 in the initial state (before coating) is in a highly viscous liquid state. The phosphorescent layer 12 is solid-coated on the print display layer 11. As a result, the entire printed display layer 11 and the entire back surface of the front film 10 are covered with the phosphorescent layer 12. Depending on the viscosity of the phosphorescent layer 12, the phosphorescent layer 12 may be applied by spraying.
Next, the phosphorescent layer 12 is dried. The drying time is several seconds to several minutes.

Next, the backing material 13 is disposed on the back side (lower side in FIG. 2) of the phosphorescent layer 12.
Moreover, according to the size, form, use, etc. of the phosphorescent light emitter 1, cutting processing for dividing into plural pieces or cutting unnecessary portions, punching processing for extracting a specific display 11a such as a person along the contour, adhesive tape Tape processing or the like may be performed.

According to the phosphorescent light emitter 1, light such as sunlight is incident on the phosphorescent layer 12 during the daytime, so that the phosphorescent particles 12a are excited. At night, the phosphorescent particles 12a emit light by releasing excitation energy. As a result, the print display layer 11 can be made visible even in the dark without being illuminated. There is no need to use power for lighting. The light emission time of the phosphorescent light emitter 1 in a dark place is, for example, about several hours.
By coating the phosphorescent layer 12 over the entire surface film 10, the entire printed display layer 11 can be illuminated.
According to the phosphorescent light emitter 1, since the phosphorescent layer 12 is provided on the back surface of the print display layer 11, and the phosphorescent layer 12 is covered with the surface film 10, the deterioration, damage, alteration, etc. of the phosphorescent layer 12 are suppressed or Can be prevented. Furthermore, by providing the backing material 13 on the back side of the phosphorescent layer 12, deterioration, damage, alteration, etc. of the phosphorescent layer 12 can be prevented more reliably.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the phosphorescent light emitter 1 may be replaced with temporary lighting by attaching it to a skylight or the like.
The phosphorescent light emitter 1 may be used as illumination for temporarily illuminating the inside of a warehouse or a commercial refrigerator.
The phosphorescent light emitter 1 may be used as an article packaging. In that case, the backing material 13 may be the main body of the article. For example, the backing material 13 may be a beverage PET bottle, and the phosphorescent light emitter 1 may be its packaging label. The backing material 13 is not necessarily a constituent element of the phosphorescent light emitter 1, and may be a support that supports the phosphorescent emitter 1.
The lining material 13 may be omitted.
The print display layer 11 is not limited to digital printing, and may be formed by offset printing or the like.
The phosphorescent layer 12 may be formed by printing such as gravure printing or offset printing.

  The present invention can be applied to a display object such as a poster, for example.

DESCRIPTION OF SYMBOLS 1 Photoluminescent body 10 Surface film 11 Print display layer 11a Display 12 Photoluminescent layer 12a Photoluminescent particle 12b Binder 13 Lining material

Claims (3)

A transparent surface film,
A printed display layer printed on the back of the surface film;
A phosphorescent layer coated on the back side of the printed display layer;
A phosphorescent light emitter characterized by comprising:   The phosphorescent light-emitting body according to claim 1, wherein the print display layer is formed by digital printing.   The luminous material according to claim 1, wherein a backing material is provided on the back surface of the luminous layer.

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