Preparation method of full-body light-transmitting non-perspective colorful fluorescent plate

Abstract

The invention relates to the field of plates, in particular to a preparation method of a full-body light-transmitting non-perspective colorful fluorescent plate, which is characterized by comprising the following steps: preparation: preparing glass powder, frit powder, a first powdery inorganic toner, a second powdery inorganic toner, fluorescent powder, water, a binder and a powdery opacifying agent, the color of the first powdery inorganic color agent is different from that of the second powdery inorganic color agent; preparing a first raw material; preparing a second raw material; distributing, compacting and forming; sintering: sintering the green body into the colorful fluorescent plate. According to the colorful fluorescent plate, the functions of light transmission, non-perspective and privacy protection can be well achieved, the excellent colorful fluorescent decoration effect can be achieved, and the colorful fluorescent plate can have good mechanical performance and durability; the effects of low-temperature energy conservation and cost reduction can be achieved, the process is controllable, and large-scale production can be achieved very easily.

Description

Technical Field

[0001] The invention relates to the field of plates, and in particular to a method for preparing a multi-colored fluorescent plate that is fully light-transmissive but not see-through. Background Art

[0002] In the current sheet material market, although various types of sheet materials have their own characteristics, it is difficult for them to meet multiple functional requirements at the same time. Traditional glass sheets have good light transmittance, but are completely see-through and cannot guarantee privacy. Although frosted glass can achieve non-see-through properties, its light transmittance is greatly reduced, and its color is monotonous, it can only present a single frosted texture, which makes it difficult to create a rich visual effect. Although some colored sheets have color performance, they cannot achieve the ideal effect of being light-transmitting and non-see-through, and lack fluorescent properties, and cannot show their unique charm in dark environments. Existing fluorescent sheets usually rely on additional coating substrates or specific light sources to stimulate fluorescence. Not only is the preparation process complicated, but it is also difficult to present a natural and colorful fluorescent effect. In addition, most preparation processes use high-temperature processes, which have strict requirements on equipment and huge energy consumption, resulting in high production costs and poor product weather resistance. In view of the above problems, it is very necessary to develop a new type of sheet material that integrates multiple excellent properties and has an energy-saving and environmentally friendly preparation process. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned problems and shortcomings and to provide a method for preparing a multi-colored fluorescent plate that is light-transmitting but not transparent. The multi-colored fluorescent plate prepared by this preparation method can very well achieve the functions of light-transmitting but not transparent and privacy protection, and can form an excellent multi-colored fluorescent decorative effect, and can have very good mechanical properties and durability; it can achieve the effects of low-temperature energy saving and cost reduction, the process is controllable, and is very conducive to large-scale production.

[0004] The technical solution of the present invention is achieved as follows: A method for preparing a multi-colored fluorescent plate having a light-transmitting but non-transparent structure, characterized by comprising the following steps: Preparation: including preparing glass powder, frit powder, a first powdered inorganic colorant, a second powdered inorganic colorant, fluorescent powder, water, a binder, and a powdered light-shielding agent, wherein the first powdered inorganic colorant and the second powdered inorganic colorant have different colors; Preparation of a first raw material: glass powder and frit powder are mixed in a weight percentage of 9:1 to obtain a first mixed powder; 0.1-0.4 weight percentage of a first powdered inorganic colorant and 5-15 weight percentage of a phosphor are added to the first mixed powder to obtain a first phosphor powder; water, a binder, and a powdered sunscreen are mixed in a weight percentage of 100:0.8:1.5-4 to obtain a first liquid binder; the first phosphor powder and the first liquid binder are mixed in a weight percentage of 9:1 and sieved through a 30-40 mesh sieve to obtain a first raw material; Preparation of a second raw material: glass powder and frit powder are mixed in a weight percentage of 9:1 to obtain a second mixed powder; 0.1-0.4 weight percentage of a second powdered inorganic colorant and 5-15 weight percentage of phosphor are added to the second mixed powder to obtain a second phosphor powder; water, a binder, and a powdered sunscreen are mixed in a weight percentage of 100:0.8:1.5-4 to obtain a second liquid binder; the second phosphor powder and the second liquid binder are mixed in a weight percentage of 9:1 and sieved through a 30-40 mesh sieve to obtain a second raw material; Distribution and compaction molding: the first raw material and the second raw material are mixed and distributed and compacted to form, or the first raw material and the second raw material are distributed in different areas and compacted to form a green body; Sintering: Sinter the green body into colorful fluorescent plates.

[0005] Preferably, the glass powder is ordinary glass powder with a mesh size of 200 to 325.

[0006] Preferably, the glass powder comprises the following raw materials in the following weight percentages: 0.29% ignition loss, 0.92% aluminum oxide, 72.6% silicon dioxide, 0.05% iron oxide, 8.53% calcium oxide, 3.8% magnesium oxide, 0.33% potassium oxide, 13% sodium oxide, and 0.04% titanium dioxide.

[0007] Preferably, the frit powder is 325 mesh frit powder.

[0008] Preferably, the frit powder comprises the following raw materials in weight percentage: 7.35% aluminum oxide, 68.06% silicon dioxide, 0.04% iron oxide, 15.33% calcium oxide, 3.85% magnesium oxide, 1.9% potassium oxide, 2.9% sodium oxide, and 0.1% phosphorus pentoxide.

[0009] Preferably, the powdered sunscreen is zirconium oxide; the first powdered inorganic colorant and the second powdered inorganic colorant are both ceramic pigments; and the binder is methyl cellulose.

[0010] Preferably, when preparing the first raw material, the weight percentage of the first powdered inorganic colorant to the phosphor is 0.1-0.4:5-15; when preparing the second raw material, the weight percentage of the second powdered inorganic colorant to the phosphor is 0.1-0.4:5-15.

[0011] Preferably, the first phosphor material is added to the first liquid binder while stirring, and the stirring is continued for 30 to 40 minutes; the second phosphor material is added to the second liquid binder while stirring, and the stirring is continued for 30 to 40 minutes.

[0012] Preferably, when the cloth is compacted and formed, a green body is pressed by using a press to apply a pressure of 25 MPa, then the green body is placed on a refractory material supporting plate, then the refractory material supporting plate and the green body are sent into a drying kiln to dry.

[0013] Preferably, the dried green body and the refractory material supporting plate are placed into a sintering furnace, the sintering furnace is started, and the temperature is slowly increased to 810-830 DEG C at a speed of 6 DEG C / min, after reaching the temperature, the temperature is kept constant, and the holding time is 10-20 min; then the temperature is decreased to 520 DEG C; then the temperature is slowly increased to 620 DEG C at a speed of 2.5 DEG C / min, after reaching the temperature, the temperature is kept constant, and the holding time is 10-20 min; then the temperature is decreased to below 50 DEG C, and the colorful fluorescent plate is obtained.

[0014] The present application has the following beneficial effects: By using the preparation method, the colorful fluorescent plate with the characteristics of full-body light transmission and non-perspective can be obtained. When light passes through the colorful fluorescent plate, it occurs diffuse transmission, and uniformly and softly illuminates the indoor space, which not only fully meets the indoor lighting demand, but also effectively blocks the line of sight, and provides a private space for the user, and is suitable for places with high requirements for privacy protection, such as a bedroom, a bathroom, etc. By adding the first powder inorganic color agent, the second powder inorganic color agent, and the fluorescent powder in the above amount, the colorful fluorescent plate can present rich and varied colors and unique fluorescent effects. In a normal light environment, the colorful fluorescent plate exhibits gorgeous and colorful basic colors; when in a relatively dark light environment or at night, the fluorescent effect gradually appears, and multiple fluorescent colors such as red, green, and blue are emitted, and a dreamlike visual atmosphere is created, which greatly improves the space decoration effect, and can be widely applied to artistic decoration, theme restaurants, entertainment places, and other scenes with high decoration requirements. By using the preparation method, the mechanical performance of the colorful fluorescent plate, such as hardness and chemical stability, is very good. The above ingredients enhance the mechanical strength of the plate, and the plate has strong impact resistance and pressure resistance, and is not easy to break; at the same time, the chemical stability is good, and the plate can maintain stable performance under different environmental conditions, and is not easy to deteriorate due to chemical reaction, and has a long service life, reduces the replacement cost, and has high cost performance. The preparation method can realize low-temperature sintering, and compared with the traditional high-temperature glass preparation process, the energy consumption is significantly reduced. Not only the energy consumption cost is reduced, but also the high-temperature resistance requirement of the equipment is greatly reduced, and more common and low-cost equipment can be selected for production, which effectively reduces the equipment investment and maintenance cost. The raw material ratio and the preparation process of the preparation method are easy to accurately control, and the stable process makes the plate suitable for large-scale industrial production, can meet the large market demand for the product, and has a broad market prospect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is one of the actual photos of the colorful fluorescent plate prepared by mixing the cloth in the present application.

[0016] Figure 2 This is a physical picture of the colorful fluorescent plate made of partitioned fabric in the present invention.

[0017] Figure 3 This is a physical picture of the multi-colored fluorescent plate in the light transmission state of the present invention.

[0018] Figure 4 This is the second actual picture of the colorful fluorescent plate made of mixed fabrics in the present invention.

[0019] Figure 5 For the present invention Figure 4 Actual picture of the fluorescent state of the multi-color fluorescent plate. DETAILED DESCRIPTION

[0020] like Figure 1 As shown, the method for preparing a multi-color fluorescent plate having a light-transmitting but non-transparent structure according to the present invention comprises the following steps: Preparation: including preparing glass powder, frit powder, a first powdered inorganic colorant, a second powdered inorganic colorant, fluorescent powder, water, a binder, and a powdered light-shielding agent, wherein the first powdered inorganic colorant and the second powdered inorganic colorant have different colors; Preparation of a first raw material: glass powder and frit powder are mixed in a weight percentage of 9:1 to obtain a first mixed powder; a first powdered inorganic colorant with a weight percentage of 0.1 to 0.4 (the weight percentage of the first powdered inorganic colorant can be selected from 0.1, 0.2, 0.3 or 0.4, but is not limited to these values. Without departing from the concept of the present invention, other values ​​are used and fall within the protection scope of the present invention) and a phosphor with a weight percentage of 5 to 15 to obtain a first phosphor material (the weight percentage of the first phosphor material can be selected from 5, 10 or 15, but is not limited to these values. Without departing from the concept of the present invention, other values ​​are used and fall within the protection scope of the present invention). range); mixing water, a binder, and a powdered sunscreen in a weight percentage ratio of 100:0.8:1.5-4 to obtain a first liquid binder (the weight percentage of the powdered sunscreen may be 1.5, 2, 2.5, 3, 3.5, or 4, but is not limited to these values. Without departing from the concept of the present invention, other values ​​are used and fall within the scope of protection of the present invention); mixing the first phosphor material and the first liquid binder in a weight percentage ratio of 9:1 and sieving through a 30-40 mesh sieve (the sieving may be performed using a 30-mesh, 35-mesh, or 40-mesh sieve, but is not limited to these values. Without departing from the concept of the present invention, other values ​​are used and fall within the scope of protection of the present invention), to obtain a first raw material; Preparation of a second raw material: glass powder and frit powder are mixed in a weight ratio of 9:1 to obtain a second mixed powder; 0.1 to 0.4 weight percent of a second powdered inorganic colorant (the weight percentage of the second powdered inorganic colorant can be 0.1, 0.2, 0.3, or 0.4) and 5 to 15 weight percent of a phosphor are added to the second mixed powder to obtain a second phosphor powder material (the weight percentage of the second phosphor powder material can be 5, 10, or 15, but is not limited to these values. Other values ​​are within the scope of protection of the present invention without departing from the concept of the present invention); water, a binder, and a powdered sunscreen are mixed in a ratio of 100: The second liquid binder is prepared by mixing the powdered sunscreen in a weight percentage ratio of 0.8:1.5-4 to obtain a second liquid binder (the weight percentage of the powdered sunscreen can be 1.5, 2, 2.5, 3, 3.5 or 4, but is not limited to these values. Without departing from the concept of the present invention, other values ​​are used and fall within the scope of protection of the present invention); the second phosphor material and the second liquid binder are mixed in a weight percentage ratio of 9:1 and sieved through a 30-40 mesh sieve (the sieve can be a 30-mesh, 35-mesh or 40-mesh sieve, but is not limited to these values. Without departing from the concept of the present invention, other values ​​are used and fall within the scope of protection of the present invention), to obtain a second raw material; Distribution and compaction molding: the first raw material and the second raw material are mixed and distributed and compacted to form, or the first raw material and the second raw material are distributed in different areas and compacted to form a green body; Sintering: Sinter the green body into colorful fluorescent plates.

[0021] This preparation method produces a highly transparent, non-transparent, multi-colored fluorescent sheet. Light diffuses through the sheet, evenly and softly illuminating the interior space. This fully meets indoor lighting needs while effectively blocking sight lines, providing privacy for users. It's suitable for locations with high privacy requirements, such as bedrooms and bathrooms.

[0022] By adding the aforementioned amounts of the first and second powdered inorganic colorants and phosphors, the multi-colored fluorescent sheet material exhibits a rich variety of colors and unique fluorescent effects. Under normal lighting conditions, the multi-colored fluorescent sheet material displays a vibrant array of primary colors. In dimmed lighting or at night, the fluorescent effect gradually emerges, emitting a variety of red, green, and blue colors, creating a dreamy visual atmosphere and significantly enhancing the decorative effect of any space. It is widely applicable in art installations, theme restaurants, entertainment venues, and other spaces requiring high decorative qualities.

[0023] This preparation method achieves exceptional mechanical properties, including hardness and chemical stability, in multi-colored fluorescent sheet materials. The aforementioned ingredients enhance the sheet's mechanical strength, making it highly resistant to impact and pressure, and less susceptible to breakage. Furthermore, it exhibits excellent chemical stability, maintaining stable performance under varying environmental conditions and resisting chemical reactions and deterioration. This results in a long service life, reduced replacement costs, and a high cost-effectiveness ratio.

[0024] This preparation method enables low-temperature sintering, significantly reducing energy consumption compared to traditional high-temperature glass preparation processes. This not only reduces energy costs but also significantly lowers the high-temperature resistance requirements for equipment. More common, lower-cost equipment can be used for production, effectively reducing equipment investment and maintenance costs.

[0025] The raw material ratio and preparation process of the preparation method are easy to accurately control, and the stable process makes the plate of the present invention suitable for large-scale industrial production, can meet the large market demand for the product, and has broad market prospects.

[0026] Different fabric methods form colorful fluorescent plates with different color textures. When mixed fabrics are used (when mixed fabrics are mixed, they will be stirred during and / or after mixing), Figure 1 and Figure 4 The colorful fluorescent plate shown in the figure; when partitioning the material, fill the different colors of raw materials into the mold according to the regional distribution, and fill them uniformly according to the height of the mold (stirring operation is not required in this method of fabrication), which can obtain Figure 2 The colorful fluorescent plate shown. Such colorful fluorescent plate can bring Figure 3 The whole body light-transmitting and non-transparent effect shown, as well as the Figure 5 The fluorescent effect shown in the figure can achieve a very good privacy protection function and form an excellent colorful fluorescent decorative effect.

[0027] The glass frit is a 200-325 mesh standard glass frit. This effectively controls the stability of the multi-color fluorescent sheet production, thereby facilitating the production of higher-quality multi-color fluorescent sheet materials. The glass frit can be 200, 225, 250, 300, or 325 mesh standard glass frit, but is not limited to these values. Other values ​​are also within the scope of the present invention without departing from the spirit of the present invention.

[0028] The glass powder comprises the following raw materials in the following weight percentages: 0.29% ignition loss, 0.92% aluminum oxide, 72.6% silicon dioxide, 0.05% iron oxide, 8.53% calcium oxide, 3.8% magnesium oxide, 0.33% potassium oxide, 13% sodium oxide, and 0.04% titanium dioxide. This composition effectively enhances the mechanical strength of the multi-color fluorescent sheet, making it more resistant to impact and pressure, and less susceptible to breakage. It also exhibits superior chemical stability, maintaining stability in a wider range of environmental conditions and resisting chemical reactions and deterioration. This further extends the product's service life, reduces replacement costs, and offers a higher cost-effectiveness.

[0029] The frit powder is 325 mesh frit powder, which can effectively control the stability of the production of the multi-color fluorescent plate, thereby facilitating the production of higher quality multi-color fluorescent plate.

[0030] The frit powder comprises the following raw materials by weight: 7.35% aluminum oxide, 68.06% silicon dioxide, 0.04% iron oxide, 15.33% calcium oxide, 3.85% magnesium oxide, 1.9% potassium oxide, 2.9% sodium oxide, and 0.1% phosphorus pentoxide. This frit powder effectively reduces firing temperature and shortens firing time, enabling a more efficient low-temperature, fast-firing process. This composition also enhances the stability of the multi-color fluorescent sheet, resulting in greater reliability and durability.

[0031] The powdered sunscreen is zirconium oxide; the first and second powdered inorganic colorants are both ceramic pigments; and the binder is methyl cellulose. This not only improves the stability of multi-color fluorescent sheet production but also ensures more stable and reliable color, thereby facilitating the production of higher-quality multi-color fluorescent sheet.

[0032] The phosphor is a commercially available ceramic-grade long-lasting phosphor, which can bring a very stable and reliable fluorescent effect.

[0033] When preparing the first raw material, the weight percentage of the first powdered inorganic colorant to the phosphor is 0.1-0.4:5-15; when preparing the second raw material, the weight percentage of the second powdered inorganic colorant to the phosphor is 0.1-0.4:5-15. This can achieve a more coordinated color and fluorescence, thereby further improving the quality and applicability of the multi-color fluorescent sheet. The weight percentage of the first powdered inorganic colorant to the phosphor can be 0.1:5, 0.2:10, 0.3:10, or 0.4:15, but is not limited to these values. Without departing from the scope of the present invention, the use of other values ​​falls within the scope of protection of the present invention. The weight percentage of the second powdered inorganic colorant to the phosphor can be 0.1:5, 0.2:10, 0.3:10, or 0.4:15, but is not limited to these values. Without departing from the scope of protection of the present invention, the use of other values ​​falls within the scope of protection of the present invention.

[0034] The first phosphor material is added to the first liquid binder while stirring, and the stirring is continued for 30 to 40 minutes; the second phosphor material is added to the second liquid binder while stirring, and the stirring is continued for 30 to 40 minutes. This can make the mixing more thorough and uniform, thereby helping to further improve the quality of the multi-colored phosphor sheet, and further help to further improve the applicability of the preparation method. The above stirring time can be selected as 30, 35 or 40 minutes, but is not limited to these values. On the basis of not departing from the concept of the present invention, the use of other values ​​is within the scope of protection of the present invention.

[0035] During the material distribution and compaction process, a press applies 25 MPa of pressure to form a green body. This green body is then placed on a refractory setter, which is then sent to a drying kiln along with the green body for drying. This produces a more stable green body, enabling subsequent sintering to produce higher-quality multi-color fluorescent panels, further enhancing the applicability of this production method.

[0036] During the laying and compaction process, ceramic presses are used to compact the green body, giving it initial strength and density, laying the foundation for the subsequent sintering process. A 4,800-ton press is used to produce 750*1,500 multi-color fluorescent sheets, while a 7,800-ton press is used to produce 900*1,800 multi-color fluorescent sheets. This ensures that the compacted green body is very stable and reliable.

[0037] During the distribution and compaction process, the mixed first and second raw materials are slowly placed into a specific mold with a pre-designed texture pattern, or the first and second raw materials are slowly placed into a specific mold with a pre-designed texture pattern in sections. The materials are then transferred to the mold frame of a press, where a pressure of 25 MPa is applied to compact the raw materials into a brick blank (i.e., a green body) with a certain strength and density. The shape and density of the pressed green body are optimized for the performance and appearance of the final board. The green body is then flattened onto a refractory setter of appropriate area and finally sent to a drying kiln for drying. This ensures that the green body is very stable before firing, which facilitates the subsequent sintering of high-quality multi-color fluorescent boards.

[0038] The dried green body and the refractory setter are placed in a sintering furnace together, and the sintering furnace is started. The temperature is slowly raised to 810°C to 830°C at a rate of 6°C / min (810°C, 820°C or 830°C can be selected, but are not limited to these values. Without departing from the concept of the present invention, other values ​​are used and belong to the protection scope of the present invention). After reaching this temperature, the temperature is maintained at a constant state for 10 to 20 minutes (10, 15 or 20 minutes can be selected, but are not limited to these values. Without departing from the concept of the present invention, other values ​​are used and belong to the protection scope of the present invention); then the temperature is lowered to 520°C; then the temperature is slowly raised to 620°C at a rate of 2.5°C / min. After reaching this temperature, the temperature is maintained at a constant state for 10 to 20 minutes; then the temperature is lowered to below 50°C to obtain a colorful fluorescent plate. This production method achieves both low-temperature energy savings and cost reductions: Using low-temperature raw materials, a low-temperature sintering process of approximately 810°C to 830°C is sufficient, significantly reducing energy consumption compared to traditional high-temperature glass production processes (which typically require temperatures exceeding 1500°C). This not only reduces energy costs but also significantly lowers the high-temperature resistance requirements of the equipment, allowing the use of more common, lower-cost equipment for production, effectively reducing equipment investment and maintenance costs. The two aforementioned holding times are determined by thickness and quantity: greater thickness and quantity require longer holding times, which better controls processing quality.

[0039] During the sintering process, the various raw materials within the blank undergo physical and chemical changes, achieving full-body sintering, ultimately forming a sheet blank that is transparent, non-transparent, and exhibits a colorful fluorescent effect. After sintering is complete, the sintering furnace is turned off and the blank is allowed to cool naturally to room temperature. After cooling, the sheet can be polished to a smoother, flatter surface, or cut, depending on actual use. The sheet can also be heated again and bent (using a mold) to create an arc or concave shape, or cut into various sizes to meet diverse application scenarios.

[0040] This preparation method is process-controllable and scalable: the raw material ratio and preparation process can be precisely controlled. During the production process, strict control of parameters such as the raw material ratio, mixing uniformity, compaction pressure, sintering temperature and time enables the stable production of boards of consistent quality. This process stability makes the boards of the present invention suitable for large-scale industrial production, can meet the high market demand for this product, and has broad market prospects.

[0041] The colorful fluorescent plate prepared by this preparation method has broad application prospects in many fields such as architectural decoration, indoor lighting, and art installations.

[0042] The above embodiments are preferred embodiments of the present invention. All structures similar to those of the present invention and equivalent changes made thereto should fall within the protection scope of the present invention.

Claims

1. A method for preparing a multi-colored fluorescent plate having a light-transmitting but non-transparent structure, characterized in that The steps include: Preparation: including preparing glass powder, frit powder, a first powdered inorganic colorant, a second powdered inorganic colorant, fluorescent powder, water, a binder, and a powdered light-shielding agent, wherein the first powdered inorganic colorant and the second powdered inorganic colorant have different colors; Preparation of a first raw material: glass powder and frit powder are mixed in a weight percentage of 9:1 to obtain a first mixed powder; 0.1-0.4 weight percentage of a first powdered inorganic colorant and 5-15 weight percentage of a phosphor are added to the first mixed powder to obtain a first phosphor powder; water, a binder, and a powdered sunscreen are mixed in a weight percentage of 100:0.8:1.5-4 to obtain a first liquid binder; the first phosphor powder and the first liquid binder are mixed in a weight percentage of 9:1 and sieved through a 30-40 mesh sieve to obtain a first raw material; Preparation of a second raw material: glass powder and frit powder are mixed in a weight percentage of 9:1 to obtain a second mixed powder; 0.1-0.4 weight percentage of a second powdered inorganic colorant and 5-15 weight percentage of phosphor are added to the second mixed powder to obtain a second phosphor powder; water, a binder, and a powdered sunscreen are mixed in a weight percentage of 100:0.8:1.5-4 to obtain a second liquid binder; the second phosphor powder and the second liquid binder are mixed in a weight percentage of 9:1 and sieved through a 30-40 mesh sieve to obtain a second raw material; Distribution and compaction molding: the first raw material and the second raw material are mixed and distributed and compacted to form, or the first raw material and the second raw material are distributed in different areas and compacted to form a green body; Sintering: Sinter the green body into colorful fluorescent plates.

2. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1, characterized in that: The glass powder is ordinary glass powder with a mesh size of 200 to 325.

3. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1 or 2, characterized in that: The glass powder includes the following raw materials in percentage by weight: 0.29% ignition loss, 0.92% aluminum oxide, 72.6% silicon dioxide, 0.05% iron oxide, 8.53% calcium oxide, 3.8% magnesium oxide, 0.33% potassium oxide, 13% sodium oxide, and 0.04% titanium dioxide.

4. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1, characterized in that: The frit powder is 325 mesh frit powder.

5. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1 or 4, characterized in that: The frit powder includes the following raw materials in weight percentage: 7.35% aluminum oxide, 68.06% silicon dioxide, 0.04% iron oxide, 15.33% calcium oxide, 3.85% magnesium oxide, 1.9% potassium oxide, 2.9% sodium oxide, and 0.1% phosphorus pentoxide.

6. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1, characterized in that: The powdered sunscreen is zirconium oxide; the first powdered inorganic colorant and the second powdered inorganic colorant are both ceramic pigments; and the binder is methyl cellulose.

7. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1, characterized in that: When preparing the first raw material, the weight percentage of the first powdered inorganic colorant and the phosphor is 0.1-0.4:5-15; when preparing the second raw material, the weight percentage of the second powdered inorganic colorant and the phosphor is 0.1-0.4:5-15.

8. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1, characterized in that: The first phosphor material is added to the first liquid binder while stirring, and the stirring is continued for 30 to 40 minutes; the second phosphor material is added to the second liquid binder while stirring, and the stirring is continued for 30 to 40 minutes.

9. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 1, characterized in that: During the laying and compacting process, a press is used to apply a pressure of 25 MPa to press out the green body, and then the green body is placed on a refractory support plate, and then the refractory support plate and the green body are sent to a drying kiln for drying.

10. The method for preparing a multi-color fluorescent plate having full-body light-transmitting but non-transparent properties according to claim 9, characterized in that: The dried green body and the refractory support plate are placed in a sintering furnace together, and the sintering furnace is started. The temperature is slowly increased to 810°C~830°C at a rate of 6°C / min. After reaching this temperature, the temperature is maintained at a constant state for 10 to 20 minutes; then the temperature is lowered to 520°C; then the temperature is slowly increased to 620°C at a rate of 2.5°C / min. After reaching this temperature, the temperature is maintained at a constant state for 10 to 20 minutes; then the temperature is lowered to below 50°C to obtain a colorful fluorescent plate.

Images