JP2006097443A - Luminescent phosphor plate and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a phosphorescent fluorescent plate capable of effectively exhibiting fluorescence of a fluorescent material while combining the fluorescent plate and a non-slip aggregate and a method for manufacturing the same.
SOLUTION: A substrate 2, a light reflecting surface 2a formed on the substrate 2, a lead-free glass layer 3 containing a phosphorescent phosphor material laminated on the light reflecting surface 2a and dispersed and mixed with a phosphorescent phosphor material, and lead-free And a light-reflective anti-slip fine particle aggregate 4 fixed to the surface of the glass layer 3 in a scattered manner.
[Selection] Figure 1

Description

  The present invention relates to a phosphorescent fluorescent plate and a method for producing the same, and more particularly to a phosphorescent phosphor plate suitable for a flooring and a method for producing the same.

Conventionally, as a non-slip floor material, for example, a glass plate (Patent Document 1) formed by fusing high-hardness particles having wear resistance on the surface of a glass substrate is known, and as a fluorescent product, For example, a fluorescent product (Patent Document 2) in which a fluorescent glaze is applied to the upper surface of a main body is known.
JP 2002-265235 A JP 2002-72936 A

  The above-mentioned conventional fluorescent products are generally obtained by applying a glaze containing a fluorescent material and glass frit on a substrate such as glass or fine ceramics and fusing it.

  On the other hand, in the above conventional non-slip flooring material, generally used aggregates are often opaque, and such aggregates block incident light necessary for the phosphorescent fluorescent material and fluorescence of the phosphorescent fluorescent material. Also, in order to enhance the anti-slip effect by the aggregate, it is generally apt to be densely arranged. For example, white alumina particles, black or brown silicon carbide, non-transparent stone meteorite (transparent is expensive), or white or brown silica sand are used as aggregates. When arranged, when a layer containing a fluorescent material is arranged under the aggregate, light is absorbed or reflected by the aggregate, or a predetermined pattern is formed by the aggregate. When the aggregate is translucent, the above-mentioned problem does not occur, but there has been a demand for further improving the luminous efficiency.

  Therefore, an object of the present invention is to provide a phosphorescent fluorescent plate that can effectively exhibit the fluorescence of the fluorescent material while combining the fluorescent plate and the non-slip aggregate, and a method for manufacturing the same.

  In order to achieve the above object, a phosphorescent phosphor plate according to the present invention comprises a substrate, a light reflecting surface formed on the substrate, and a phosphorescent material obtained by dispersing and mixing phosphorescent phosphor materials laminated on the light reflecting surface. A lead-free glass layer containing a fluorescent material, and at least one of a light-transmitting anti-slip fine particle aggregate fixed to the surface of the lead-free glass layer and a light-reflective anti-slip fine particle aggregate fixed to the surface of the lead-free glass layer in a scattered manner It is characterized by having. Here, the “scattered state” means not clogged without a gap.

  In order to achieve the above object, a substrate, a light reflecting surface formed on the substrate, and a lead-free glass layer containing a phosphorescent fluorescent material laminated on the light reflecting surface and dispersed and mixed with the phosphorescent fluorescent material, A lead-free glass protective layer that is laminated on a lead-free glass layer containing a phosphorescent phosphor and has translucency, a translucent anti-slip particulate aggregate fixed to the surface of the lead-free glass protective layer, and a surface of the lead-free glass protective layer And at least one of light-reflective anti-slip fine particle aggregates fixed in a scattered manner.

  The light reflecting surface is preferably formed of a light reflecting layer laminated on the surface of the substrate, and the light reflecting layer is preferably formed of a white or light color glaze.

  The substrate may be a white or light-colored base material, and the light reflecting surface may be formed by the surface of the substrate, or the substrate may be made of porcelain.

The light-reflective anti-slip particulate aggregate preferably has an average particle size of about 0.1 to about 1.5 mm and a scattered density of 5 to 120 g / m ² .

  Furthermore, in order to achieve the above object, in the first method for producing a phosphorescent phosphor plate according to the present invention, a lead-free glass frit and a phosphorescent phosphor material are dispersed on the light reflecting surface of a substrate having a light reflecting surface. Applying slurry or paste to form a lead-free glass layer forming layer containing a phosphorescent phosphor material, drying the lead-free glass layer forming layer containing the phosphorescent phosphor material, and drying the lead-free glass layer containing the phosphorescent phosphor material A step of spraying at least one of a light-transmitting anti-slip fine particle aggregate and a light-reflective anti-slip fine particle aggregate on the surface of the forming layer so as not to shield the lead-free glass layer forming layer containing the storage phosphor; and The lead-free glass layer-containing phosphorescent phosphor material containing at least one of the light-transmitting anti-slip fine particle aggregate and the light-reflective anti-slip fine particle aggregate is fired to form a lead-free glass layer containing the phosphorescent phosphor material. And having a step.

  Moreover, in order to achieve the said objective, the 2nd manufacturing method of the luminous fluorescent plate which concerns on this invention disperse | distributed the lead-free glass frit and the luminous fluorescent material on this light reflection surface of the board | substrate which has a light reflection surface. Applying slurry or paste to form a lead-free glass layer forming layer containing a phosphorescent phosphor material, drying the lead-free glass layer forming layer containing the phosphorescent phosphor material, and drying the lead-free glass layer containing the phosphorescent phosphor material On the forming layer, a slurry or paste in which lead-free glass frit is dispersed is applied and dried to form a translucent lead-free glass protective layer forming layer, and on the surface of the dried lead-free glass protective layer forming layer, A step of spraying at least one of the light-transmitting anti-slip fine particle aggregate and the light-reflective anti-slip fine particle aggregate so as not to shield the lead-free glass layer-forming layer containing the storage phosphor; Firing the lead-free glass layer-forming layer containing the phosphorescent phosphor material and the lead-free glass protective layer-forming layer in which at least one of the stop fine particle aggregate and the light-reflective anti-slip fine particle aggregate is sprayed. To do.

  Furthermore, in order to achieve the above object, in the third method for producing a phosphorescent phosphor plate according to the present invention, a lead-free glass frit and a phosphorescent phosphor material are dispersed on the light reflecting surface of a substrate having a light reflecting surface. Applying slurry or paste to form a lead-free glass layer forming layer containing a phosphorescent phosphor material, drying the lead-free glass layer forming layer containing the phosphorescent phosphor material, and drying the lead-free glass layer containing the phosphorescent phosphor material A slurry or paste in which at least one of a light-transmitting anti-slip fine particle aggregate and a light-reflective anti-slip fine particle aggregate and a lead-free glass frit is dispersed on the forming layer is formed on the surface after the slurry or paste is fired. Coating the anti-slip fine particle aggregate so as to form a convex portion, and forming a lead-free glass protective layer forming layer containing the non-slip fine particle aggregate; and the phosphorescent phosphor Firing the lead-free glass layer forming layer containing the material and the lead-free glass protective layer forming layer containing the non-slip fine particle aggregate, and forming the lead-free glass protective layer containing the non-slip fine particle aggregate on the lead-free glass layer containing the phosphorescent phosphor; It is characterized by having.

  In the first to third manufacturing methods, as a fourth manufacturing method, the substrate to which the slurry or paste is applied is a molded body before firing, and the lead-free glass layer-forming layer containing the phosphorescent fluorescent material or the It is preferable that the lead-free glass layer-forming layer containing the non-slip fine particle aggregate is fired and sintered simultaneously with firing.

  In the first to fourth manufacturing methods, it is preferable to further include a step of applying a white or light-colored glaze layer on the surface of the substrate in order to form a light reflecting surface on the surface of the substrate.

  In the first to fourth manufacturing methods, the substrate having the light reflecting surface is preferably formed of a white or white base material, and the light reflecting surface is formed of the base material.

  The “porcelain” is a pure white transparent ceramic that is well-baked and vitrified and has no water absorption.

  According to the phosphorescent fluorescent plate according to the present invention, lead-free phosphorescent phosphorescent material is provided by providing a light-transmitting anti-slip aggregate on the surface and forming a light reflecting surface under the lead-free glass layer containing phosphorescent phosphorescent material. Light that is incident on the glass layer and is not absorbed by the phosphorescent phosphor is reflected and absorbed by the phosphorescent phosphor, and the fluorescence emitted by the phosphorescent phosphor is reflected by the light reflecting surface and emitted. Efficiency is improved.

  In addition, according to the phosphorescent fluorescent plate according to the present invention, the light reflecting non-slip fine particle aggregates are scattered and fixed on the lead-free glass layer containing the phosphorescent fluorescent material so that incident light is reflected by the light reflecting non-slip fine particles. Passes between the aggregates and enters the lead-free glass layer containing the phosphorescent phosphor, and light of a specific wavelength is absorbed by the phosphorescent phosphor to excite the phosphorescent phosphor, The light that is not absorbed by the phosphor is absorbed by the phosphorescent phosphor while being reflected between the light reflecting surface formed on the surface of the substrate and the light-reflecting fine particle aggregate, so that the luminous rate is increased. Highly efficient fluorescence (emission) can be obtained.

  Hereinafter, embodiments of a phosphorescent phosphor plate and a method for producing the same according to the present invention will be described with reference to FIGS. In addition, the same code | symbol was attached | subjected to the same component through all the figures and all the embodiment.

  FIG. 1 is a longitudinal sectional view showing a first embodiment of a phosphorescent phosphor plate according to the present invention. As shown in FIG. 1, a phosphorescent phosphor plate 1 includes a substrate 2, a lead-free glass layer 3 containing a phosphorescent phosphor material laminated and mixed with the phosphorescent phosphor material, and a lead-free glass containing a phosphorescent phosphor material. A light-reflective anti-slip fine particle aggregate 4 fixed in a scattered manner on the surface of the layer 3.

The substrate 2 is rich in durability and weather resistance, and the lead-free glass layer 3 can be fused, and a substrate having a light reflecting surface is used. The light reflecting surface may be provided due to the nature of the substrate, or a light reflecting layer may be separately formed. The example shown in FIG. 1 is an embodiment in which the surface of the substrate itself is the light reflecting surface 2a. Examples of such a substrate 1 include a ceramic substrate mainly composed of Al ₂ O ₃ , MgO, and SiO ₂ , and a white or light-colored ceramic substrate. These substrates preferably have a thickness of 4 to 12 mm. The ceramics referred to here has a broad meaning including ceramics, cement, glass, bricks, and the like.

  As the light-reflective anti-slip fine particle aggregate, it is possible to use a light-reflective aggregate among known aggregates having an average particle diameter of about 0.1 to about 1.5 mm and a high hardness. it can. An average particle diameter can be measured based on the measuring method prescribed | regulated to JISR6002. As the light-reflective anti-slip fine particle aggregate, alumina (white), zirconia (white), white or light colored silica sand, and glass particles are preferable because they have high light reflectivity in the entire wavelength region. The stone meteorite is preferably an opaque white one, but a color other than white can also be used depending on the type of phosphorescent fluorescent material. That is, a stone meteorite having the same color as the color (wavelength) absorbed by the phosphorescent phosphor for phosphorescence can be used. For example, when the phosphorescent fluorescent material absorbs a green color for the purpose of phosphorescence, if a green color stone meteorite is used, the stone meteorite reflects the green color. The same applies to the light-reflecting base material, and the light reflecting surface can have a similar color to the color of light (specific wavelength region) absorbed by the phosphorescent fluorescent material.

  The luminous phosphor plate as described above is manufactured as follows.

  First, a substrate 2 having a light reflecting surface is prepared, and a slurry or paste in which a lead-free glass frit and a phosphorescent fluorescent material are dispersed in a dispersion medium composed of water and an organic solvent on the light reflecting surface as necessary. Then, for example, the coating is applied so that the thickness is 0.5 to 2 mm to form a lead-free glass layer forming layer containing a luminous phosphor material.

  As the coating method, for example, brush coating, spray coating, pouring, casting filling, screen printing, paper transfer, transfer such as silk transfer, and other coating methods can be employed.

  As the organic solvent in the slurry or paste, those which are decomposed and burned off by firing can be used. For example, known methyl cellulose, ethyl cellulose, toluene, ethyl alcohol, oil, acrylic resin, etc. can be used as a general binder.

  The weight ratio in the slurry or paste is 20 to 40% by weight of the dispersion medium composed of water and an organic solvent, 10 to 35% by weight of the phosphorescent fluorescent material, and 35 to 50% by weight of the lead-free glass frit. Can do.

Since the ceramic substrate 2 generally has a smaller thermal expansion coefficient than that of glass, the lead-free glass layer 3 containing a phosphorescent fluorescent material has a thermal expansion coefficient as small as possible in order to prevent penetration and peeling due to a difference in thermal expansion. It is preferable to do. Therefore, it is preferable that the thermal expansion coefficient of the lead-free glass layer is, for example, 50 × 10 ⁻⁷ to 75 × 10 ⁻⁷ .

  Further, since the phosphorescent phosphor material is oxidized and decomposed at a high temperature and the brightness is lowered, the lead-free glass layer 3 containing the phosphorescent phosphor material is preferably melted at a relatively low firing temperature (for example, 650 to 850 ° C.). Therefore, it is preferable to use a glass frit having a low melting point of about 500 to 750 ° C. Furthermore, since the phosphorescent fluorescent material is easily oxidized and the luminance is reduced by oxidative decomposition, the lead-free glass layer preferably has acid resistance.

  The lead-free glass layer-forming layer containing the phosphorescent phosphor thus obtained is left at 100 to 200 ° C. for about 2 to 6 hours and dried.

Next, the light-reflective anti-slip particulate aggregate 4 is sprayed on the surface of the dried lead-free glass layer-forming layer containing the phosphorescent phosphor. As described above, the light-reflective anti-slip fine particle aggregate 4 having a particle size of about 0.1 to about 1.5 mm is preferably dispersed to a scattered density of 5 to 120 g / m ² . This is because if the scattering density is less than 5 g / m ² , the effect as an anti-slip becomes too small, whereas if it exceeds 120 g / m ² , the ratio of reflecting incident light increases, which rather hinders the luminous performance. It is. Here, the “density” in the scattered density is a density in a broad sense and is a ratio distributed per unit area. The scattered density of the phosphorescent phosphor material is expressed by the mass of the phosphorescent phosphor material dispersed per 1 m ² .

  Next, the lead-free glass layer-containing layer containing the phosphorescent phosphor material dispersed with the light-reflective anti-slip particulate aggregate 4 is baked at 650-850 ° C. for 3-8 hours to form the lead-free glass layer 3 containing the phosphorescent phosphor material. To do. During the firing, the lead-free glass frit melts and encloses the light-reflective anti-slip fine particle aggregate 4, and after firing, the surface of the light-reflective anti-slip fine particle aggregate 4 is completely covered with a glass film. Although fixed, the light-reflective anti-slip fine particle aggregate forms a convex portion on the surface of the lead-free glass layer 3 containing the phosphorescent fluorescent material after firing, and acts as a non-slip.

  In the phosphorescent phosphor plate 1 obtained as described above, the light-reflective anti-slip fine particle aggregates 4 are scattered and fixed on the surface of the lead-free glass layer 3 containing the phosphorescent phosphor material. Light that passes through the non-slip particulate aggregate 4 and enters the lead-free glass layer 3 containing the phosphorescent fluorescent material and is absorbed by the phosphorescent fluorescent material. 2a and the light-reflective anti-slip fine particle aggregate 4 are absorbed by the phosphorescent phosphor in the middle of repeated reflection, and as a result, the phosphorescence rate is increased and high-efficiency fluorescence can be obtained. .

  Next, a second embodiment of the phosphorescent phosphor screen according to the present invention will be described below with reference to FIG. FIG. 2 is a longitudinal sectional view showing a second embodiment of the phosphorescent phosphor screen.

  The phosphorescent phosphor plate 1 of the second embodiment is mainly different from the first embodiment in that a light reflecting layer 5 is laminated on the surface of the substrate.

  The light reflecting layer 5 can be formed of, for example, a white or light-colored glaze layer. As the white glaze, for example, a lead-free glass frit containing a pigment such as zirconium, titanium, sodium, tin or the like is used, and the lead-free glass layer 3 containing a phosphorescent fluorescent material 3 is fired with a low melting point (650 to 850 ° C.). It is sometimes preferable to melt and integrate. The thickness of the glaze layer that forms the light reflecting layer 5 can be set to, for example, 0.2 to 1.0 mm as an appropriate thickness that is compatible with the lead-free glass layer 3 containing the luminous phosphor material.

  The glaze layer for forming the light reflecting layer 5 may be fused on the substrate 2 in advance, and then the lead-free glass layer 3 containing a phosphorescent fluorescent material may be formed thereon. Alternatively, a glaze layer for forming the light reflecting layer 5 is applied and dried, and then a lead-free glass layer-forming layer containing a luminous material with a luminous diameter is applied and dried, and the light-reflective non-slip particulate aggregate 4 is dispersed. Then, it may be fused by firing.

  When the light reflecting layer 5 as described above is formed on the surface of the substrate 2, the substrate itself may not have light reflectivity. The substrate 2 is not limited to a ceramic substrate, and for example, a stainless steel plate in which a glaze layer for forming the light reflecting layer 5 is fused on a steel plate upper surface such as stainless steel can be adopted.

  Next, a second embodiment of the phosphorescent phosphor screen according to the present invention will be described below with reference to FIG. FIG. 3 is a longitudinal sectional view showing a third embodiment of the phosphorescent phosphor screen.

  The phosphorescent phosphor plate 1 of the second embodiment is made of lead-free glass that does not contain a phosphorescent phosphor material on the upper surface of the lead-free glass layer containing the phosphorescent phosphor material that is laminated on the light reflecting surface and in which the phosphorescent phosphor material is dispersed and mixed. The point that the formed lead-free glass protective layer 6 is laminated, and the light-reflective anti-slip fine particle aggregates are scattered and fixed to the surface of the lead-free glass protective layer 6 is different from the first embodiment, and other points. Is the same as in the first embodiment.

  In manufacturing the luminous phosphor plate 1 of the second embodiment, as a method of fixing the light-reflective anti-slip fine particle aggregate, in addition to the method of spraying in the same manner as in the first embodiment, another method described below. There is a way.

  That is, after drying the lead-free glass layer 3 containing phosphorescent phosphor material coated on the substrate 2, a slurry or paste in which lead-free glass frit and light-reflective anti-slip fine particle aggregate 4 are dispersed on the upper surface is formed. The lead-free glass protective layer 6 forming layer containing the light-reflective anti-slip fine particle aggregate is formed by coating so as to have a predetermined film thickness. In this case, the film thickness of the slurry or paste to be applied is such that the convexity due to the light-reflective anti-slip fine particle aggregate 4 exhibits anti-slip properties on the surface after firing the slurry or paste, For example, it is 0.2 to 1.0 mm. As the coating method, for example, brush coating, spray coating, pouring, casting filling, screen printing, paper transfer, transfer such as silk transfer, and other coating methods can be employed.

  After drying the lead-free glass protective layer 6 layer containing the light-reflective anti-slip fine particle aggregate, the lead-free glass layer 3 forming layer containing the phosphorescent fluorescent material and the lead-free glass layer forming layer containing the light-reflective anti-slip fine particle aggregate are fired. Then, the lead-free glass layer containing the light-reflective anti-slip fine particle aggregate is fused and solidified on the lead-free glass layer containing the phosphorescent fluorescent material.

  A phosphorescent phosphor plate according to the first to third embodiments and a phosphorescent phosphor plate (comparative product) having the same configuration as that of the first embodiment except that no aggregate is used are manufactured. Based on JIS Z 9107 As a result of the comparison test of afterglow luminance, the phosphorescent phosphor screens of the first to third embodiments all have a luminance degradation of 5% or less with respect to the comparative product, and the luminance degradation due to the addition of aggregate. Was kept to a minimum.

  Moreover, in the said 1st-3rd embodiment, although the manufacturing method using the board | substrate sintered beforehand was demonstrated, the board | substrate as a molded object before baking is made into the lead-free glass layer forming layer containing a luminous fluorescent material, or the said The lead-free glass layer-forming layer containing the light-reflective anti-slip fine particle aggregate can be fired and sintered simultaneously with firing.

  In addition, on the upper surface of the lead-free glass layer forming layer containing the phosphorescent fluorescent material or the upper surface of the lead-free glass layer forming layer containing the light-reflective anti-slip fine particle aggregate, pictograms, designs, patterns, characters, etc. are further printed with glaze. It can be worn and used as a label or the like.

  In the above embodiment, an example in which a light-reflective sliding fine particle aggregate is used as the non-slip fine particle aggregate has been described. However, a light transmissive non-slip fine particle aggregate can also be used. In the case of using a light-transmitting anti-slip fine particle aggregate, it can be provided in a scattered manner, but can also be provided so as to be spread without gaps. Other manufacturing methods and configurations are the same as those in the above embodiment. Examples of the light-transmitting anti-slip fine particle aggregate include transparent glass particles, transparent stone particles, and transparent artificial stone particles. It is also possible to use a mixture of a light transmissive anti-slip fine particle aggregate and a light reflective fine particle aggregate.

It is a longitudinal section showing a 1st embodiment of a luminous fluorescent screen concerning the present invention. It is a longitudinal cross-sectional view which shows 2nd Embodiment of the phosphorescent fluorescent plate which concerns on this invention. It is a longitudinal cross-sectional view which shows 3rd Embodiment of the phosphorescent fluorescent plate which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Phosphorescent fluorescent plate 2 Substrate 2a Light reflecting surface 3 Lead-free glass layer containing phosphorescent fluorescent material 4 Light-reflective anti-slip fine particle aggregate 5 Light reflective layer 6 Lead-free glass protective layer containing light-reflective anti-slip fine particle aggregate

Claims (14)

A substrate having a light reflecting surface on the upper surface;
A lead-free glass layer containing a phosphorescent phosphor material that is laminated on the light reflecting surface and in which the phosphorescent phosphor material is dispersed and mixed;
At least one of the translucent anti-slip fine particle aggregate fixed to the surface of the lead-free glass layer and the light-reflective anti-slip fine particle aggregate fixed to the surface of the lead-free glass layer in a scattered manner;
A phosphorescent phosphor plate characterized by comprising: A substrate having a light reflecting surface on the upper surface;
A lead-free glass layer containing a phosphorescent phosphor material that is laminated on the light reflecting surface and in which the phosphorescent phosphor material is dispersed and mixed;
A lead-free glass protective layer laminated on a lead-free glass layer containing a phosphorescent fluorescent material and having translucency;
At least one of the translucent anti-slip particulate aggregate fixed to the lead-free glass protective layer surface and the light-reflective anti-slip particulate aggregate fixed to the lead-free glass protective layer surface in a scattered manner;
The phosphorescent phosphor plate according to claim 1, comprising: The phosphorescent phosphor plate according to claim 1 or 2, wherein the light reflecting surface is formed by a light reflecting layer laminated on a surface of the substrate. 4. The phosphorescent phosphor plate according to claim 3, wherein the light reflection layer is formed of a white or light color glaze. 3. The phosphorescent phosphor plate according to claim 1, wherein the substrate is a white or light-colored base material, and the light reflecting surface is formed by a surface of the substrate. 6. The phosphorescent phosphor plate according to claim 5, wherein the substrate is made of porcelain. The light-reflective anti-slip particulate aggregate has an average particle size of about 0.1 to about 1.5 mm and a scattered density of 5 to 120 g / m ^2. Phosphorescent phosphor screen. A step of forming a lead-free glass layer-forming layer containing a phosphorescent phosphor material by applying a slurry or paste in which a lead-free glass frit and a phosphorescent phosphor material are dispersed on the light reflecting surface of the substrate having a light reflecting surface;
Drying the lead-free glass layer forming layer containing the phosphorescent phosphor material;
On the surface of the dried lead-free glass layer forming layer containing the phosphorescent fluorescent material, at least one of a light-transmitting anti-slip fine particle aggregate and a light-reflective anti-slip fine particle aggregate is formed, and the lead-free glass layer forming layer containing the storage phosphor material Spraying so as not to block light,
The lead-free glass layer-forming layer containing the phosphorescent fluorescent material on which at least one of the light-transmitting anti-slip fine particle aggregate and the light-reflective anti-slip fine particle aggregate is dispersed is fired to form a lead-free glass layer containing the phosphorescent fluorescent material Process,
A method for producing a phosphorescent phosphor plate, comprising: A step of forming a lead-free glass layer-forming layer containing a phosphorescent phosphor material by applying a slurry or paste in which a lead-free glass frit and a phosphorescent phosphor material are dispersed on the light reflecting surface of the substrate having a light reflecting surface;
Drying the lead-free glass layer forming layer containing the phosphorescent phosphor material;
Applying a slurry or paste in which lead-free glass frit is dispersed on the dried lead-free glass layer-forming layer containing the phosphorescent fluorescent material, and drying to form a translucent lead-free glass protective layer-forming layer;
At least one of translucent anti-slip fine particle aggregate and light reflective anti-slip fine particle aggregate on the surface of the dried lead-free glass protective layer forming layer, so that the lead-free glass layer forming layer containing the storage phosphor is not shielded from light Spraying process;
Firing the lead-free glass layer-forming layer containing the phosphorescent phosphor and the lead-free glass protective layer-forming layer in which at least one of the light-transmissive anti-slip fine particle aggregate and the light-reflective anti-slip fine particle aggregate is dispersed;
A method for producing a phosphorescent phosphor plate, comprising: Applying a slurry or paste in which lead-free glass frit and phosphorescent fluorescent material are dispersed to form a lead-free glass layer-forming layer containing phosphorescent phosphor on the light reflecting surface of the substrate having the light reflecting surface;
Drying the lead-free glass layer forming layer containing the phosphorescent phosphor material;
On the dried lead-free glass layer-forming layer containing the phosphorescent fluorescent material, a slurry or paste in which at least one of a light-transmitting anti-slip fine particle aggregate and a light-reflective anti-slip fine particle aggregate and a lead-free glass frit is dispersed, The slurry or paste is applied onto the surface after firing so as to have a film thickness enough to form convex portions of the non-slip fine particle aggregate to form a lead-free glass protective layer forming layer containing the non-slip fine particle aggregate. Process,
The lead-free glass layer forming layer containing the phosphorescent fluorescent material and the lead-free glass protective layer forming layer containing the non-slip fine particle aggregate are fired, and the lead-free glass protective layer containing the non-slip fine particle aggregate is formed on the lead-free glass layer containing the phosphorescent fluorescent material. Forming, and
A method for producing a phosphorescent phosphor plate, comprising: The substrate to which the slurry or paste is applied is a molded body before firing, and is fired at the same time as firing the lead-free glass layer forming layer containing the luminous phosphor material or the lead-free glass layer forming layer containing the non-slip fine particle aggregate, It is sintered, The manufacturing method of the luminous fluorescent plate in any one of Claims 8-10 characterized by the above-mentioned. The method according to any one of claims 8 to 11, further comprising a step of applying a white or light-colored glaze layer to the surface of the substrate in order to form a light reflecting surface on the surface of the substrate. A method for producing a phosphorescent phosphor screen. The light storage surface according to any one of claims 8 to 11, wherein the substrate having the light reflecting surface is formed of a white or white base material, and the light reflecting surface is formed by the base material. Method for producing a fluorescent phosphor plate. The method for producing a phosphorescent phosphor plate according to any one of claims 8 to 13, wherein the phosphorescent phosphor material in the slurry or paste is 10 to 35 wt%.

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