JPH0931369A - Chromatic phosphorescent composite and chromatic phosphorescent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a phosphorescent composite having a gold or silver metal color or a black color which has been practically impossible to be colored and yet a sufficiently intense phosphorescent luminance by including a fluorescent phosphor and a binder in a phosphorescent layer and by including a coloring agent and a binder in a colored layer. SOLUTION: This article is characterized by yielding a higher luminance even in the same hues and by giving phosphorescence to the hues to which imparting of phosphorescence has traditionally been impossible, by separating a phosphorescent layer and a colored layer. Generally, copper activated zinc sulfide is used as a fluorescent phosphor. A highly transparent resin is recommended for the binder. The phosphorescent layer contains not less than 50wt.% of a fluorescent phosphor and is 10-500μm thick. An ink or a coating material are used as a coloring agent. A metallized metal color pigment is recommended as a metal color pigment. The content of a fluorescent phosphor in the coloring agent is 70-95wt.%. In the figure, the fluorescent layer 2 consists of a binder 4 and a fluorescent phosphor 5 and the colored layer 3 consists of a binder 4, a fluorescent phosphor 5 and a coloring agent 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an afterglow composite which can have various colors and has a high emission luminance even in a deep color such as red, green and black or a metal color. body,
And an article having this composite.

[0002]

2. Description of the Related Art Some pigments have a property of emitting phosphorescence (afterglow) in a dark place for a relatively long time when irradiated with sunlight or artificial lighting, and can repeat this phenomenon any number of times. This pigment is called a phosphorescent pigment because it absorbs light like charging and discharging of a storage battery and emits light in a dark place.
Further, there is a luminous pigment which mixes radioactive substances such as tritium, ¹⁴⁷ Pm and ²²⁶ Ra into the luminous pigment and stimulates the luminous pigment to emit light by the radiation emitted from these radioactive substances.

At present, the applications of these phosphorescent pigments and luminescent pigments utilize their afterglow properties to make use of switches, portable electric lights, dark room supplies, handrails, luminescent markings such as wall markings, guide signs, evacuation tools, and others. Luminescent signs such as luminous safety signs, ashtrays, earrings, tablecloths and other ornaments, printed matter, toys,
It covers a wide range of items such as stationery. For example, phosphorescent pigments are disclosed in JP-A-4-51405, evacuation passage lighting phosphorescent wall covering materials, JP-A-11-11075, phosphorescent fibers, JP-A-1-200388, light-emitting rope, JP-A-1. Japanese Patent Laid-Open No. 20038-239 discloses a marker sheet.

Further, depending on the application, there is a case where it is desired to have afterglow property and be colored. However, when it is colored with a conventional fluorescent pigment or the like, the phosphorescence brightness is greatly influenced by the color and the density. For example, JIS K 512
0 According to "Explanatory Table: Reduction of phosphorescent brightness of phosphorescent pigments by coloring" on page 5, explanation of phosphorescent pigments is 100
%, 15.7% for green (addition amount: 3.6%), 14.1% for red radish color (addition amount: 2.4%), 5.1% for red (addition amount: 9.1%) And the decrease in color and red is large. As a solution to such a problem, for example, JP-A-3-166269 discloses a color phosphorescent pigment and a luminescent pigment combined with an organic pigment. However, even these color phosphorescent pigments and luminescent pigments are not intended to improve the phosphorescence brightness, and thus have low emission brightness and have limited color variations.

[0005]

However, due to the diversification of products and needs, there is a strong demand for an afterglow product having high emission brightness and capable of various coloring. For example, gold, silver and black afterglow products have not been put into practical use so far. This is because phosphorescence was not obtained even when the metallic color pigment or the black pigment coexisted with the phosphorescent pigment. This is because the layer containing the metallic color pigment or the black pigment has a very low translucency, and light does not accumulate in the luminous pigment.

By the way, a phosphorescent phosphor having higher emission brightness than conventional phosphorescent pigments has been developed (Japanese Patent Laid-Open No. 7-11250). However, even if this phosphorescent phosphor is used, the above problems have not been solved yet. By mixing the colored pigments, the decrease in phosphorescence was still large, and it was substantially impossible to color gold or silver metallic color or black. The present invention has been made in view of such problems, and the object thereof is to color the colors such as red and green, which can be conventionally colored,
It is an object of the present invention to provide an afterglow composite that can obtain higher phosphorescence brightness even with an equivalent color tone, and further to provide an article using the above-mentioned afterglow composite. Further, an object of the present invention is to provide an afterglow composite having gold, silver metallic color or black coloring, which has been virtually impossible to be colored conventionally, and which has sufficient luminescent brightness. Further, it is to provide an article using the afterglow composite.

[0007]

SUMMARY OF THE INVENTION The present invention comprises at least a phosphor layer and a colored layer, said phosphor layer comprising a phosphor and a binder, said colored layer comprising a colorant and a phosphor. It relates to an afterglow composite, which comprises a body and a binder. Furthermore, the present invention relates to an afterglow article having the above-mentioned afterglow composite on a part or all of the surface thereof.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The most characteristic feature of the afterglow composite of the present invention is that a phosphorescent layer and a colored layer are separated. Here, the phosphor layer is a layer containing a phosphor and a binder, and the colored layer is a layer containing a colorant, a phosphor and a binder. A conventional product having afterglow properties is composed of only a colored layer containing a colorant and a phosphor,
The afterglow composite of the present invention, by providing the phosphorescent layer and the coloring layer as described above, has a high emission brightness even if the color tone is the same, or it is not possible to impart the conventional afterglow property. It is now possible to add afterglow to color.

The phosphor layer is a layer containing a phosphor and a binder. In the present invention, the “phosphor” is a substance that emits phosphorescence, and any substance having such a property can be used without limitation. For example, phosphorescent pigments and luminescent pigments are included in the "phosphor". Also, Japanese Patent Application Laid-Open
The phosphorescent phosphor disclosed in No. 11250 is also included in the "phosphor" in the present invention. As the "phosphor", copper activated zinc sulfide (ZnS: Cu) is generally used, but any other inorganic fluorescent pigment or organic fluorescent pigment having phosphorescence can be selected. For example, zinc silicate-based, zinc cadmium sulfide-based, calcium sulfide-based, strontium sulfide-based, calcium tungstate-based, etc., especially phosphorescent pigments with strontium aluminate as a host crystal and a rare earth element as an activator have a luminescent brightness. It is preferable from the viewpoint of high price. On the other hand, the luminescent pigment is a phosphorescent pigment with a radioactive substance added to have a self-luminous property. For example, a copper-activated zinc sulfide added with a radioactive substance such as tritium and promethium 147 (“Revised new edition”). Pigment Handbook ", pp. 506 to 512, date of publication; March 10, 1989, publisher; Seibundo Shinkosha Co., Ltd., editor; Japan Pigment Technology Association).

In the present invention, the "binder" may be any as long as it can form a layer with the phosphor, and for example, it can contain a resin as a main component. Further, a material having high transparency is preferable from the viewpoint of obtaining high emission luminance. Examples of the resin forming the binder include acrylic resins, alkyd resins, epoxy resins, urethane resins, acryl silicon resins, silicon resins, fluorine resins, and melamine resins. However, there is no intention to be limited to these.

The ratio between the phosphor and the binder in the phosphor layer and the layer thickness can be appropriately determined according to the emission brightness required for the desired afterglow composite. As a general trend,
The higher the phosphor content of the phosphor layer and the thicker the phosphor layer, the higher the emission brightness. However, if the phosphor content is too high, it may be difficult to form the phosphor layer or the strength may be reduced. From such a viewpoint, the phosphor content of the phosphor layer is 50% by weight or more,
Preferably 70-95% by weight, more preferably 80-9
A range of 0% by weight is suitable. Further, the thickness of the phosphorescent layer is, for example, in the range of 10 to 500 μm, and practically it is usually in the range of 50 to 200 μm. It should be noted that two or more phosphorescent layers can be laminated for the purpose of increasing the thickness of the phosphorescent layer.

On the other hand, the colored layer is a layer containing a colorant, a phosphor and a binder. Here, as the “fluorescent phosphor” and the “binder”, the same ones as described in the phosphor layer can be used. As the colorant, those used for ordinary inks and paints can be used as they are. For example, it can be an organic or inorganic dye or pigment. The color tone is not particularly limited.

In particular, the present invention can also provide a metallic or black afterglow composite. As the metallic color pigment, general metallic powder or bronze powder can be used, but from the viewpoint of obtaining high emission brightness, it is preferable to use a vapor-deposited metallic color pigment having a scaly particle shape. Evaporated metal color pigments are flaky powders obtained by vapor-depositing metal (gold; brass, silver; aluminum) on pieces of plastics (polyethylene terephthalate film, aluminum, etc.) and pulverizing them, and then depositing transparent (yellow) resin. It is protected by layers. As a commercially available product, there is, for example, ELGE R Gold # 325 manufactured by Oike Industry Co., Ltd. Further, as the black pigment, for example, carbon black or the like can be used, but from the viewpoint of obtaining high emission brightness, a vapor-deposited black pigment having a scaly particle shape is preferable. The vapor-deposited black pigment is formed by using a black material instead of metal. As a commercial product,
For example, there is ELGE Black # 325 manufactured by Oike Industry Co., Ltd. The vapor-deposited metal color pigment and the vapor-deposited black pigment are flaky powders and have a larger average particle diameter than ordinary pigments. Therefore, by using a vapor-deposited metal color pigment or a vapor-deposited black pigment, it is possible to maintain good light transmission in the colored layer, which is preferable.

The concentration of the colorant in the colored layer and the thickness of the colored layer are appropriately determined in consideration of the color required for the afterglow composite of the present invention. However, it should be taken into consideration that the emission luminance of the afterglow composite tends to decrease as the concentration of the coloring agent and the thickness of the coloring layer increase. In addition, the phosphor contained in the colored layer, together with the light emission of the phosphor layer, affects the emission brightness of the afterglow composite. In particular, from the viewpoint of obtaining high emission brightness, the particles of the phosphor contained in the colored layer are
It is preferable that a single or a plurality of continuous layers are present so as to penetrate the colored layer in the thickness direction. For example, by making the particle diameter of at least a part of the particles of the phosphor in the coloring layer larger than the thickness of the coloring layer, or by changing the average particle diameter of the particles of the phosphor in the coloring layer to the coloring layer. By making the thickness of the phosphor layer larger than the thickness of the phosphor layer, the particles of the phosphor can singly penetrate through the colored layer in the thickness direction. Further, in order for a plurality of phosphor particles to continuously penetrate the colored layer in the thickness direction, it is necessary that the concentration of the phosphor in the colored layer be a certain level or more. For example, the content of phosphor particles in the colored layer is 70 to 95% by weight, preferably 80 to 9% by weight.
By setting the content in the range of 5% by weight, a plurality of particles of the phosphor can be continuously present so as to penetrate the colored layer in the thickness direction.

This state will be further described with reference to the examples shown in FIGS. 1 and 2 each show a colored afterglow composite of the present invention in which a phosphorescent layer 2 and a colored layer 3 are sequentially provided on a substrate 1. The phosphor layer 2 is composed of a binder 4 and a phosphor 5, and the colored layer 3 is composed of a binder 4, a phosphor 5 and a colorant (vapor-deposited metal color pigment) 6.

FIG. 1 shows a case in which a plurality of (two to three) particles of the phosphor 5 are present so as to continuously penetrate the colored layer 3 in the thickness direction. The particles of the phosphor 5 are in contact with each other. Further, FIG. 2 shows a case in which the particles of the phosphor 5 exist independently so as to penetrate the colored layer 3 in the thickness direction.
In such a state, light from the colored layer 3 side (upper side in the drawing) is easily transmitted through the colored layer 3 and transmitted to the phosphor layer 2, and the phosphor 5 in the phosphor layer 2 is easily transmitted. Accumulation of light in the can be promoted. On the contrary, phosphorescence generated from the phosphorescent layer 2 easily passes through the colored layer 3 and reaches the surface of the colored layer 3, and the emission intensity also increases. Further, the accumulation and emission of light to the phosphor 5 in the colored layer 3 can be promoted. In addition, since the particles of the phosphor 5 are present in the colored layer 3, the vapor-deposited metal color pigment 6 can be dispersed at an appropriate interval, and light (excitation light) to the phosphor layer 2 can be dispersed. Transmission and phosphorescence layer 2
Does not interfere with the transmission of light (phosphorescence) from the.

The colored layer of the afterglow composite of the present invention can be composed of a single color, but it can also be composed of two or more parts having different colors, and patterns, patterns, characters, marks and the like can be inserted therein. You can also The afterglow composite of the present invention may have an additional layer on a part or all of the surface of at least one of the phosphorescent layer and the coloring layer. The additional layer can be a substrate layer, which can be substantially transparent to visible light, opaque to visible light, or white.

Further, the substrate layer may have a printed layer on at least one surface thereof. If the substrate layer is white or has a white printed layer, the emission brightness can be improved. The substrate layer is, for example,
It can be a sheet, film or card of paper, plastic, cloth, glass, metal, ceramics and leather, and the like. The additional layer can also be a protective layer.
Suitably, the protective layer is substantially transparent to visible light.

Furthermore, the present invention includes an afterglow article having the above-mentioned afterglow composite on a part or all of the surface thereof. There are no particular restrictions on the type of article. For example, switches, portable electric lights, darkroom supplies, handrails, luminescent markings such as wall markings, guide signs, evacuation equipment, other luminous indicators such as luminous safety signs, ashtrays, earrings, ornaments such as tablecloths, printed matter,
Examples include toys and stationery. Like transfer paper,
If the front and back of the pattern are printed in reverse, the positional relationship between the phosphorescent layer 2 and the colored layer 3 is reversed. The materials to be printed on the transfer paper are various articles such as ceramics, cloth, plastic, metal, glass, enamel and building materials.

The method for producing the afterglow composite and the afterglow article of the present invention will be described below. In the afterglow composite of the present invention, a phosphorescent layer and a coloring layer are sequentially formed on a suitable substrate by a method such as printing or painting which is commonly used for forming a coating film or a coating film. It can be formed by For example, the phosphor layer can be formed using an ink in which a phosphor and a medium containing a binder are mixed. Further, the coloring layer uses an ink in which a colorant, a phosphor, and a medium containing a binder are mixed, or an ink in which a colorant, a phosphor, and a medium containing a binder are mixed. Can be formed. The composition of the ink can be appropriately determined in consideration of the composition of each layer to be formed and the viscosity of the ink. The medium containing the binder is, for example, a commercially available one, and it is appropriate to use a one-component or two-component type that has good adhesion and weather resistance to the material. As an example of the medium that is most suitable for the fabric and has particularly excellent transparency, "Matsui Dye Chemical Co., Ltd.
Made, product name: KDBDL ".

The phosphor layer-forming ink can be prepared, for example, by mixing 100 to 400 parts by weight of the phosphor with 100 to 400 parts by weight, preferably 150 to 300 parts by weight of the phosphor. Further, the coloring layer forming ink is, for example, 100 to 400 parts by weight of the medium and 100 to 400 of the phosphor.
An ink containing 1 part by weight, preferably 150 to 300 parts by weight and a color pigment can be mixed in the range of 1 to 15% by weight to prepare the ink.

From the viewpoint of forming a relatively thick layer in order to obtain high emission brightness, screen printing or the like is preferably used for forming the layer. Further, it is possible to perform flat printing, curved surface printing, winding printing from the shape of the printing material, and also electrostatic screen printing can be used (“Basic printing technology”, pages 114 to 118, issue date; Month 3
0th, Publisher: Sangyo Tosho Co., Ltd., Editor: Takahiro Tsunoda et al. 2
Name). The screen mesh used for screen printing is not particularly limited, and can be appropriately determined in consideration of the particle size of the phosphor or color pigment contained in the ink, the viscosity of the ink, and the like. For example, by screen printing using a screen mesh of 80 mesh to 200 mesh, a thickness of 10 μm to 1
A layer having a film thickness of about 00 μm can be formed.

When the afterglow composite does not have a substrate (consisting only of a phosphorescent layer and a colored layer), it is formed after forming the phosphorescent layer and the colored layer on an appropriate substrate. It can be obtained by peeling the afterglow composite from the substrate. When the afterglow composite is composed of a substrate layer, a phosphorescent layer and a colored layer, a suitable substrate is used as the above-mentioned substrate, and the phosphorescent layer and the colored layer are successively formed on the substrate, whereby the present invention The afterglow complex of can be obtained. Further, the afterglow composite of the present invention may have a protective layer, and the protective layer may be, for example, a UV-curable resin layer. However, it is not limited to this. Further, the afterglow composite of the present invention may have an adhesive layer.

[0024]

The present invention will be further described with reference to the following examples. Example 1 Phosphorescent layer forming ink (1) Luminescent pigment (manufactured by Nemoto Special Chemical Co., Ltd., N night light (luminous pigment with strontium aluminate as a base crystal and a rare earth element as an activator), average particle diameter 20 μm ) 200 g and 100 g of medium (Vinyl Screen Printing INK ATC 780N Seiko Advance Co., Ltd., solid content 30% by weight) were sufficiently stirred and mixed to form a phosphorescent layer forming ink (1). Ink for forming colored layer (1) Luminescent pigment (manufactured by Nemoto Special Chemical Co., Ltd., N night light (luminous pigment having strontium aluminate as a base crystal and a rare earth element as an activator), average particle diameter 20 μm) 160 g and medium (Vinyl Screen Printing INK ATC 780N Seiko Advance Co., Ltd., solid content 30% by weight) 80 g and colored ink (Vinyl Screen Printing INK red: ATC weather resistance 538
Process Red, Seiko Advance Co., Ltd., solid content
53.3% by weight) was thoroughly mixed with stirring to form a colored layer forming ink (1).

Formation of Afterglow Composite The above phosphorescent layer forming ink (1) was screen-printed on YUPO (synthetic paper FPG manufactured by Oji Yuka Co., Ltd., thickness 247 μm) using a T100 mesh printing cloth. 92 x 56
A phosphorescent layer having a thickness of 90 μm and a thickness of 90 μm was formed. Then, the colored layer forming ink (1) was screen-printed on the phosphorescent layer using the same T100 mesh printing mesh as described above to form a colored layer having a thickness of 82 μm. The brightness and color tone of the obtained afterglow composite of the present invention after 1 minute of quenching were measured.

Luminance measurement method The sample, which was sufficiently illuminated in the dark, was irradiated with light corresponding to a brightness of about 5400 lx for 10 minutes by a 27 w fluorescent lamp to accumulate light. One minute after the end of light irradiation for light accumulation, the intensity of phosphorescence (afterglow) of the sample was measured using a luminance meter (LS-100 manufactured by Minolta Camera Co., Ltd.). Furthermore, the amount of the unit phosphorescent pigment contained in the afterglow composite (1 g)
The intensity (mcd) of the phosphorescence per hit was determined as the luminous efficiency. Tone measurement method The hue was visually observed, and the number of the DIC color sample that was approximated was selected by comparison with the DIC color sample. The results are shown in Table 1.

Comparative Example 1 The colored layer-forming ink (1) prepared in Example 1 was screen-printed (twice applied) on the same YUPO as in Example 1 using a T100 mesh printing cloth to give a 157 μm-thick layer. A colored layer was formed. The brightness and color tone of the obtained printed matter after 1 minute of extinction were measured in the same manner as in Example 1. The results are shown in Table 1.

[0028]

[Table 1]

From the results shown in Table 1, it can be seen that the afterglow composite of the present invention exhibits a high afterglow brightness while having the same color tone as compared with the sample including only the colored layer.
In addition, the luminous efficiency is high, and it can be seen that the phosphor effectively works for light emission.

Examples 2 to 6 A phosphorescent layer having a thickness of 90 μm was formed in the same manner as in Example 1.
Next, on the phosphorescent layer, various colored layer forming inks were formed in which the amount ratio of the phosphorescent pigment and the medium or the amount ratio of the colored ink and the medium was changed, and the ink was used in the same manner as in Example 1 to screen. It was printed to form a colored layer (red). The brightness and color tone of the obtained afterglow composite of the present invention after 1 minute of quenching were measured in the same manner as in Example 1. Table 2 shows the results.

[0031]

[Table 2]

Example 8 The phosphorescent layer was coated twice as in Example 1 to give a thickness of 179.
After adjusting the thickness to μm, a colored layer was formed in the same manner as in Example 1. The brightness of the obtained afterglow composite of the present invention after 1 minute of quenching was 596 mcd / m ² , the luminous efficiency was 2.26 mcd / g, the hue was red, and the DIC was # 275. It was

Comparative Examples 2 and 3 In the same manner as in Comparative Example 1, except that the colored layer forming ink (1) was applied once or three times to form a colored layer having a thickness of 90 μm or 220 μm. Table 3 shows the luminance, luminous efficiency and color tone of the obtained afterglow composite of the present invention after 1 minute of quenching.

[0034]

[Table 3]

Examples 9 to 11 A phosphorescent layer having a thickness of 90 μm was formed in the same manner as in Example 1.
Next, a colored layer forming ink formed by using the following ink as a colored ink on the phosphorescent layer was formed in the same manner as in Example 1 (however, the addition amount of the colored ink was 3 in Examples 9 and 10). %, And 10% in Example 11) was screen-printed to form a colored layer. The brightness, luminous efficiency and color tone of the obtained afterglow composite of the present invention after 1 minute of quenching were measured in the same manner as in Example 1. The results are shown in Table 4. Example 9 (blue): Colored ink (Vinyl Screen Printing)
INK blue: ATC weather resistance 546 process blue, Seiko Advance Co., Ltd., solid content 47.7% by weight) Example 10 (green): Colored ink (Vinyl Screen Printin)
g INK Green: ATC 304 Process Green, Seiko Advance Co., Ltd., solid content 53.4% by weight) Example 11 (Fri): Oike Industry Co., Ltd., RG R Go
ld # 325

[0036]

[Table 4]

Example 12 On the colored layer of the afterglow composite of the present invention obtained in Example 1,
UV curing protective layer forming ink (Vinyl Screen Printing IN
A protective layer having a thickness of 65 μm was formed using K UV8414 Clear (manufactured by Seiko Advance Co., Ltd.). The brightness of the obtained afterglow composite of the present invention after 1 minute of quenching was 356 mcd / m ²
The hue was red and the DIC was # 274.

Example 13 Ink for forming a phosphorescent layer (2 ) 230 g of a phosphorescent pigment (manufactured by Nemoto Special Chemical Co., Ltd., GSS (average particle diameter 21 μm)) and medium (Vinyl Screen Print
ing INK VIC 800 Seiko Advance Co., Ltd. 100
g and 20 g of cellosolve acetate were sufficiently mixed with stirring to form a phosphorescent layer forming ink (2). Ink for forming colored layer (2) Luminescent pigment (manufactured by Nemoto Special Chemical Co., Ltd., GSS (average particle size 21 μm)) 230 g and medium (Vinyl Screen Print
ing INK VIC 800 Seiko Advance Co., Ltd. 100
g and colored ink (Vinyl Screen Printing INK Green: ATC 3
04 Process Green, Seiko Advance Co., Ltd., solid content 53.4% by weight) (3 g) was thoroughly stirred and mixed to form a colored layer forming ink (2).

Formation of Afterglow Composite The above phosphorescent layer forming ink (2) was screen-printed on YUPO (synthetic paper FPG manufactured by Oji Yuka Co., Ltd., thickness 247 μm) using a T100 mesh printing cloth. 92 x 56
A mm phosphor layer was formed. Then, the colored layer-forming ink (2) was screen-printed on the phosphorescent layer using the same T100 mesh printing mesh as above to form a colored layer. The total thickness of the phosphorescent layer and the colored layer is 101μ
m. The brightness of the obtained afterglow composite of the present invention after 1 minute of quenching was 129 mcd / m ² .

Comparative Examples 4 to 6 Commercially available fluorescent pigments or fluorescent inks were used to form a fluorescent printing layer by coater printing, and the brightness (mcd /
m ² ). Table 5 shows the results. The inks used are as follows. Comparative Example 4: An ink prepared by mixing 10 g of a luminescent pigment manufactured by Kurachi Co., Ltd. and 10 g of a medium (Vinyl Screen Printing INK ATC 780N Seiko Advance Co., Ltd., solid content: 30% by weight) Comparative Example 5: Shin Roihi Co., Ltd. ) Color Luminescent Paint Pink Comparative Example 6: Shin Luhi Co., Ltd. Color Luminous Paint Green

[0041]

[Table 5]

From the results shown in Table 5, even when GSS which is a conventional phosphor is used, the afterglow composite of the present invention exhibits higher afterglow brightness than that of the commercially available fluorescent paint. I understand.

[Brief description of drawings]

FIG. 1 is an explanatory cross-sectional view of a colored afterglow composite of the present invention.

FIG. 2 is an explanatory sectional view of the colored afterglow composite of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Substrate 2 ... Phosphorescent layer 3 ... Coloring layer 4 ... Binder 5 ... Phosphor 6 ... Colorant

Claims (21)

[Claims] 1. A phosphor comprising at least a phosphor layer and a coloring layer, the phosphor layer containing a phosphor and a binder, and the coloring layer containing a coloring agent, a phosphor and a binder. A characteristic afterglow complex. 2. The afterglow composite according to claim 1, wherein the particles of the phosphor contained in the colored layer are present individually or in a continuous manner so as to penetrate the colored layer in the thickness direction. . 3. The afterglow composite according to claim 2, wherein the particle size of at least a part of the phosphor in the colored layer is larger than the thickness of the colored layer. 4. The average particle size of the phosphor in the colored layer is
The afterglow composite according to claim 2, which is thicker than the colored layer. 5. The content of the phosphor in the colored layer is 55.
The afterglow composite according to claim 1, which is in the range of ~ 95% by weight. 6. The afterglow composite according to claim 1, wherein the coloring agent in the coloring layer is a colored pigment. 7. The afterglow composite according to claim 6, wherein the colored pigment is a metallic pigment or a black pigment. 8. The afterglow composite according to claim 7, wherein the particles of the metallic color pigment and the black pigment are scaly. 9. The phosphor according to claim 1, wherein the phosphor contained in the phosphor layer is a phosphorescent pigment and / or a luminescent pigment.
An afterglow complex according to the item. 10. The phosphor according to claim 1, wherein the phosphor contained in the coloring layer is a phosphorescent pigment and / or a luminescent pigment.
An afterglow complex according to the item. 11. The binder contained in the phosphorescent layer and the colored layer is substantially transparent to visible light.
The afterglow complex according to any one of 0. 12. The afterglow composite according to claim 1, wherein the colored layer comprises two or more portions having different colors. 13. The afterglow composite according to claim 1, further comprising an additional layer on a part or all of the surface of at least one of the phosphorescent layer and the coloring layer. . 14. The afterglow composite according to claim 13, wherein the additional layer is a substrate layer. 15. The afterglow composite according to claim 14, wherein the substrate layer is substantially transparent to visible light, opaque to visible light, or white. 16. The afterglow composite according to claim 14, wherein the substrate layer has a printed layer on at least one surface thereof. 17. The afterglow composite according to claim 13, wherein the additional layer is a protective layer. 18. The afterglow composite according to claim 17, wherein the protective layer is substantially transparent to visible light. 19. The afterglow composite according to claim 13, wherein the additional layer is an adhesive layer. 20. An afterglow article having the afterglow composite according to claim 1 on a part or all of the surface thereof. 21. The afterglow article according to claim 20, wherein the article is a luminous sign, a guide sign, an evacuation tool, a luminous sign, a decorative article, a printed matter, a toy or a stationery.