CN115778825A - Fluorescent dye and application thereof - Google Patents
Fluorescent dye and application thereof Download PDFInfo
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- CN115778825A CN115778825A CN202211664389.0A CN202211664389A CN115778825A CN 115778825 A CN115778825 A CN 115778825A CN 202211664389 A CN202211664389 A CN 202211664389A CN 115778825 A CN115778825 A CN 115778825A
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- 239000007850 fluorescent dye Substances 0.000 title claims description 31
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003086 colorant Substances 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000002904 solvent Substances 0.000 claims abstract description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
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- DEFVIWRASFVYLL-UHFFFAOYSA-N ethylene glycol bis(2-aminoethyl)tetraacetic acid Chemical compound OC(=O)CN(CC(O)=O)CCOCCOCCN(CC(O)=O)CC(O)=O DEFVIWRASFVYLL-UHFFFAOYSA-N 0.000 claims description 3
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- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
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- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
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Images
Abstract
The invention provides a fluorescent coloring agent and application thereof, wherein the fluorescent coloring agent comprises a fluorescent agent, a coloring agent and a solvent; the phosphor comprises any one of a first phosphor, a second phosphor, or a third phosphor, or a combination of at least two of the same; the first fluorescent agent, the second fluorescent agent and the third fluorescent agent are matched with various fluorescent elements, so that the dyed zirconia restoration body generates blue-white fluorescence with the same fluorescent color and fluorescent intensity as those of natural teeth under the condition of ensuring the high permeability of the ceramic, the problem that the restoration body and the natural teeth have larger difference under ultraviolet light is solved, and the problems that fluorescent glaze is generated, has spots and is uneven and easy to separate are avoided.
Description
Technical Field
The invention belongs to the technical field of dental restorations, and particularly relates to a fluorescent coloring agent and application thereof.
Background
In prosthodontics, the prosthesis includes optical properties close to natural teeth, in addition to morphology, size, position, etc. close to natural teeth. The optical property currently considered for zirconia restorations is color, whereas the fluorescence of simulated natural teeth is often neglected. Natural teeth can emit blue-white fluorescence when the peak value is about 440nm under the irradiation of ultraviolet light. The ultraviolet light which is inevitably contacted in daily life, such as fluorescent lamps and some artificial light sources, has an ultraviolet component, if the prosthesis has no fluorescent effect, the difference of the prosthesis exposed to the ultraviolet light and natural teeth is large, and the prosthesis cannot be coordinated with adjacent teeth. Therefore, the realization of the fluorescent effect of the prosthesis is the essential optical performance requirement for simulating natural teeth.
Fluorescent glaze is a common choice for providing fluorescence to a full-profile zirconia restoration. However, the fluorescent glaze has disadvantages in that the generated fluorescence has spots and is not uniform, and the glaze layer is easily removed and is worn in clinical use. Therefore, in order to obtain a permanent and uniform fluorescent appearance, how to make the full-profile zirconia restoration body have fluorescence close to or consistent with that of natural teeth is an urgent technical problem to be solved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a fluorescent coloring agent and application thereof, wherein the fluorescent coloring agent obtains a high-quality fluorescent coloring agent through the matching of a fluorescent agent and the coloring agent and the selection and optimization of components of the fluorescent agent, and when the high-quality fluorescent coloring agent is acted on the existing dental prosthesis, the fluorescent coloring agent can simulate the fluorescent color and the fluorescent intensity consistent with those of natural teeth, thereby ensuring the aesthetic property of the prosthesis.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a fluorescent stain comprising a fluorescent agent, a colorant, and a solvent;
the fluorescent agent comprises at least one of a first fluorescent agent, a second fluorescent agent or a third fluorescent agent or a combination of several of the first fluorescent agent, the second fluorescent agent or the third fluorescent agent;
the first fluorescent agent comprises at least one of Er soluble salt, dy soluble salt or In soluble salt, la soluble salt and/or Y soluble salt and Tm soluble salt;
the second fluorescent agent comprises Er soluble salt, eu soluble salt, dy soluble salt, la soluble salt and/or Y soluble salt;
the third fluorescent agent comprises at least one of Er soluble salt, dy soluble salt or In soluble salt, la soluble salt and/or Y soluble salt, tm soluble salt and Eu soluble salt;
the solvent comprises a complexing agent, a dispersing agent, and water and/or a low carbon alcohol.
The following technical solutions are preferred technical solutions of the present invention, but not limited to the technical solutions provided by the present invention, and technical objects and advantageous effects of the present invention can be better achieved and achieved by the following technical solutions.
In a preferred embodiment of the present invention, the Tm soluble salt is contained in an amount of 0 to 55.3wt%, for example, 0wt%, 1wt%, 2wt%, 5wt%, 10wt%, 55.3wt%, 15wt%, 20wt%, 25wt%, 30wt%, 35wt%, 40wt%, 45wt%, 50wt%, or 55.3wt%, based on the total mass of the fluorescent coloring agent; the content of the soluble Er salt is 0-11.25wt%, such as 0wt%, 2wt%, 4wt%, 6wt%, 8wt%, 10wt% or 11.25wt%, etc.; the Dy soluble salt is contained in an amount of 0-12wt%, for example, 0wt%, 2wt%, 4wt%, 6wt%, 8wt%, 10wt%, 12wt%, or the like; the content of the Eu soluble salt is 0-16.87wt%, such as 0wt%, 2wt%, 4wt%, 6wt%, 8wt%, 10wt%, 12wt%, 14wt%, 16wt%, or 16.87wt%, etc.; the In soluble salt is present In an amount of 0 to 10.69wt%, e.g., 0wt%, 2wt%, 4wt%, 6wt%, 8wt%, 10wt%, or 10.69wt%, etc.; the La soluble salt is present in an amount of 0 to 40wt%, such as 0wt%, 1wt%, 2wt%, 5wt%, 10wt%, 55.3wt%, 15wt%, 20wt%, 25wt%, 30wt%, 35wt%, or 40wt%, etc.; the amount of the soluble salt of Y is 0 to 38.3wt%, for example, 0wt%, 1wt%, 2wt%, 5wt%, 10wt%, 55.3wt%, 15wt%, 20wt%, 25wt%, 30wt%, 35wt%, or 38.3wt%, and the remainder is a colorant and a solvent, and the above values are not limited to the values listed, and other values not listed in the respective ranges of values are also applicable.
In the present invention, the amount of the fluorescent agent added is important. If the addition amount is too low, the fluorescence color of the zirconium oxide restoration body soaked or coated by the fluorescence coloring agent deviates from the fluorescence color of the natural tooth; if the addition amount is too high, on one hand, the fluorescence color of the zirconia restoration body is influenced, and the distance between fluorescence element ions after sintering is reduced, the fluorescence luminous energy is not transferred to the matrix material but transferred to adjacent rare earth element ions, so that the fluorescence intensity is reduced, and the effect is more obvious the closer the distance is; on the other hand, the mechanical properties of the zirconia restoration after soaking or brushing with a fluorescent dye can be affected.
In addition, the fluorescent elements have different functions and need to be cooperatively used to ensure that the fluorescent color and the fluorescent intensity consistent with those of natural teeth are generated. For example, the Y soluble salt and/or the La soluble salt mainly play a role in regulating the fluorescence intensity. After the addition, firstly, the phase composition obtained after the dyed zirconia restoration is sintered is a structure with mixed tetragonal phase and cubic phase, and Y oxide and/or La oxide and zirconia form a solid solution, so that lattice distortion and defects are increased, light scattering in crystal and between crystal is reduced, and the total transmittance of the zirconia restoration is enhanced; secondly, a proper amount of Y oxide and/or La oxide after sintering can promote the doping efficiency of the rare earth elements, enhance the lattice distortion and promote the fluorescence luminous efficiency of the rare earth elements; thirdly, the Y oxide is used as an excellent luminescent material matrix, and can provide a proper crystal field for the rare earth element to promote the emission of the fluorescence of the rare earth element; fourthly, when Y soluble salt and/or La soluble salt exist simultaneously, la ions and rare earth element ions with the radius similar to that of the Y ions can uniformly enter crystal lattices of yttrium oxide after sintering, the crystal lattice distortion is enhanced, and the La ions absorb energy and then transmit the energy to zirconia matrix materials and rare earth elements, so that the fluorescence energy of the rare earth elements is enhanced.
When the Y soluble salt and/or the La soluble salt are/is added too low, although a ceramic sintered body with the fluorescence color similar to that of natural teeth can be obtained, the fluorescence intensity is difficult to regulate and control to the degree similar to that of the natural teeth; when the Y soluble salt and/or the La soluble salt is excessively added, firstly, a cross relaxation phenomenon can be generated between La ions or between Y ions after sintering, and meanwhile, the absorption of energy by a base material and rare earth elements is not facilitated due to excessive lattice distortion, so that the fluorescence intensity is weakened; secondly, after sintering, excessive Y oxide and/or La oxide is generated to generate a second phase, which can enhance light scattering, thereby weakening the fluorescence intensity; thirdly, the mechanical properties of the zirconia restoration are reduced, resulting in expansion of the ceramic to cause cracking, powdering or peeling.
As a preferred embodiment of the invention, the colorant comprises at least one of Tb soluble salt, ce soluble salt or Pr soluble salt, and Nd soluble salt, typical but non-limiting examples of the combination being: tb soluble salt, ce soluble salt and Nd soluble salt combination, pr soluble salt and Nd soluble salt combination.
In a preferred embodiment of the present invention, the content of the soluble Tb salt is 0 to 0.5wt%, for example, 0wt%, 0.1wt%, 0.52wt%, 0.3wt%, 0.4wt%, or 0.5wt%, based on the total mass of the fluorescent coloring agent; the amount of said soluble salt of Ce is 0-2.11wt%, e.g. 0wt%, 0.5wt%, 1wt%, 1.5wt%, 2wt% or 2.11wt%, etc.; the content of the Pr soluble salt is 0-0.17wt%, such as 0wt%, 0.05wt%, 0.1wt%, 0.15wt%, or 0.17wt%, and the like; the amount of the soluble Nd salt is 0.13 to 1.5wt%, for example, 1.3wt%, 1.35wt%, 1.4wt%, 1.45wt%, or 1.5wt%, and the balance is fluorescent agent and solvent, and the above values are not limited to the values listed, and other values not listed in the respective ranges of values are also applicable.
As a preferred embodiment of the present invention, the complexing agent comprises any one or a combination of at least two of formic acid, acetic acid, oxalic acid, hydrochloric acid, succinic acid, adipic acid, benzoic acid, phthalic acid, salicylic acid, EDTA, NTA, DTPA, EGTA, glycine, the amino acids lactic acid, citric acid, glycolic acid, polygluconic acid, polyacrylic acid, maleic acid, or tartaric acid, and typical but non-limiting examples of the combination are: formic acid, acetic acid and oxalic acid, benzoic acid and phthalic acid, glycine and lactic acid, and the like.
As a preferred embodiment of the present invention, the dispersant includes any one or a combination of at least two of polyvinylpyrrolidone, polysorbate, sorbitan fatty acid, triethylhexyl phosphate, sodium lauryl sulfate, methylpentanol, cellulose derivative, polyacrylamide, guar gum, fatty acid, polyethylene glycol ester, oleic acid, polyethylene glycol, polyvinyl alcohol, polyvinyl butyral or polyacrylamide, and typical but non-limiting examples of the combination are: combinations of polyethylene glycol and polyvinyl alcohol, combinations of triethylhexylphosphoric acid and sodium lauryl sulfate, combinations of oleic acid and fatty acids, and the like.
As a preferred embodiment of the present invention, the solvent further comprises a thixotropic agent.
Preferably, the thixotropic agent comprises any one of glucose, sucrose, polyethylene glycol, hydroxyethylcellulose derivative, polyvinyl alcohol, polyacrylate, hydrogenated castor oil, polyamide wax or polydextrose, or a combination of at least two of these, typical but non-limiting examples being: combinations of polyamide waxes and polydextrose, polyvinyl alcohol and polyacrylates, and the like.
As a preferred embodiment of the present invention, the lower alcohol includes any one or a combination of at least two of ethanol, ethylene glycol, methanol, glycerol, isopropanol and 1, 3-butanediol, and typical but non-limiting examples of the combination are: a combination of ethanol and methanol, a combination of glycerol and isopropanol, a combination of 1, 3-butanediol and ethanol, and the like.
In a second aspect, the present invention provides the use of a fluorescent stain according to the first aspect for staining a zirconia dental restorative material.
Preferably, the dyeing means comprises soaking, coating or spraying.
Preferably, the soaking time is 1-9s, such as 1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s, or 9s, etc.
Specifically, the zirconia pre-sintered body is dyed and then secondarily sintered, so that the final sintered product presents the fluorescence color and the fluorescence intensity consistent with those of natural teeth.
Preferably, the final sintered product has a total transmittance of 23-62%, such as 23%, 25%, 27%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, or 62%, but not limited to the recited values, and other values not recited in this range are equally applicable.
Compared with the prior art, the invention has the following beneficial effects:
according to the fluorescent coloring agent, through the optimized matching of various fluorescent elements in the first fluorescent agent, the second fluorescent agent and the third fluorescent agent, under the condition that the high permeability of ceramic is ensured, the dyed zirconia restoration body generates blue-white fluorescence with the same fluorescent color and fluorescent intensity as natural teeth, the problem that the difference between the restoration body and the natural teeth under ultraviolet light is large is solved, and the problems that fluorescent glaze is provided with spots, is uneven and is easy to separate are solved.
Drawings
FIG. 1 is a fluorescence emission spectrum at 400 to 500nm of a zirconia sintered body dyed with the fluorescent dyes of examples 1 to 4 of the present invention and comparative examples 1 to 3.
FIG. 2 is a fluorescence emission spectrum at 500 to 600nm of a zirconia sintered body dyed with the fluorescent dyes of examples 1 to 4 of the present invention and comparative examples 1 to 3.
FIG. 3 is a fluorescence emission spectrum at 600 to 700nm of a sintered zirconia body dyed with the fluorescent dyes of examples 1 to 4 of the present invention and comparative examples 1 to 3.
Detailed Description
In order to better explain the present invention and to facilitate the understanding of the technical solutions of the present invention, the present invention is further described in detail below. However, the following examples are only simple examples of the present invention and do not represent or limit the scope of the present invention, which is defined by the claims.
In one embodiment, the present invention provides a fluorescent stain comprising a fluorescent agent, a colorant, and a solvent;
the phosphor comprises any one of a first phosphor, a second phosphor, or a third phosphor, or a combination of at least two of the same;
the first fluorescent agent comprises at least one of Er soluble salt, dy soluble salt or In soluble salt, la soluble salt and/or Y soluble salt and Tm soluble salt;
the second fluorescent agent comprises Er soluble salt, eu soluble salt, dy soluble salt, la soluble salt and/or Y soluble salt;
the third fluorescent agent comprises at least one of Er soluble salt, dy soluble salt or In soluble salt, la soluble salt and/or Y soluble salt, tm soluble salt and Eu soluble salt;
the solvent comprises a complexing agent, a dispersing agent, and water and/or lower alcohol.
Further, based on the total mass of the fluorescent coloring agent, the content of the Tm soluble salt is 0-55.3wt%, the content of the Er soluble salt is 0-11.25wt%, the content of the Dy soluble salt is 0-12wt%, the content of the Eu soluble salt is 0-16.87wt%, the content of the In soluble salt is 0-10.69wt%, the content of the La soluble salt is 0-40wt%, the content of the Y soluble salt is 0-38.3wt%, and the balance is a coloring agent and a solvent.
Further, the colorant comprises at least one of Tb soluble salt, ce soluble salt or Pr soluble salt, and Nd soluble salt.
Further, based on the total mass of the fluorescent dye, the content of Tb soluble salt is 0-0.5wt%, the content of Ce soluble salt is 0-2.11wt%, the content of Pr soluble salt is 0-0.17wt%, the content of Nd soluble salt is 0.13-1.5wt%, and the balance fluorescent agent and solvent.
Further, the complexing agent includes any one of formic acid, acetic acid, oxalic acid, hydrochloric acid, succinic acid, adipic acid, benzoic acid, phthalic acid, salicylic acid, EDTA, NTA, DTPA, EGTA, glycine, amino acid lactic acid, citric acid, glycolic acid, polyglucosic acid, polyacrylic acid, maleic acid, or tartaric acid, or a combination of at least two thereof.
Further, the dispersant comprises any one or a combination of at least two of polyvinylpyrrolidone, polysorbate, sorbitan fatty acid, triethylhexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivative, polyacrylamide, guar gum, polyethylene glycol ester, oleic acid, fatty acid, polyethylene glycol, polyvinyl alcohol, polyvinyl butyral or polyacrylamide.
Further, the solvent further comprises a thixotropic agent; the thixotropic agent comprises any one or the combination of at least two of glucose, sucrose, polyethylene glycol, hydroxyethyl cellulose derivative, polyvinyl alcohol, polyacrylate, hydrogenated castor oil, polyamide wax or polydextrose.
Further, the lower alcohol includes at least one of ethanol, ethylene glycol, methanol, glycerol, isopropanol, and 1, 3-butanediol, or a combination of at least two thereof.
The following are typical but non-limiting examples of the invention:
example 1:
this example provides a fluorescent stain, which has a specific composition shown in table 1 based on the fluorescent stain of the specific embodiment.
TABLE 1
Example 2:
this example provides a fluorescent stain, which has a specific composition shown in table 2 based on the fluorescent stain of the specific embodiment.
TABLE 2
Example 3:
this example provides a fluorescent stain, which has a specific composition shown in table 3 based on the fluorescent stain of the specific embodiment.
TABLE 3
Example 4:
this example provides a fluorescent stain, which has a specific composition shown in table 4 based on the fluorescent stain of the specific embodiment.
TABLE 4
Comparative example 1:
the present comparative example provides a fluorescent coloring agent having a specific composition as shown in table 5 based on the fluorescent coloring agent in the specific embodiment.
TABLE 5
Comparative example 2:
the present comparative example provides a fluorescent coloring agent having a specific composition as shown in table 6 based on the fluorescent coloring agent in the specific embodiment.
TABLE 6
Comparative example 3:
the comparative example provides a fluorescent stain having a specific composition as shown in table 7, based on the fluorescent stain of the specific embodiment.
TABLE 7
And (4) performance testing:
the zirconium oxide pre-sintered body is dyed by the fluorescent dyes in the embodiments 1 to 4 and the comparative examples 1 to 3 respectively, and the specific steps of dyeing the zirconium oxide pre-sintered body comprise:
(1) Carrying out dry pressing on zirconia powder containing 9.62mol of yttrium oxide, then carrying out isostatic pressing at 200MPa, and then presintering at 1050 ℃ to obtain a presintering body;
(2) And immersing the pre-sintered body in a fluorescent coloring agent for 5s, and then sintering at 1500 ℃ to obtain a zirconia sintered body.
Fluorescence emission spectra of the zirconium oxide sintered bodies dyed with the fluorescent dyes of examples 1 to 4 and comparative examples 1 to 3 at 400 to 500nm, 500 to 600nm and 600 to 700nm, respectively, under the excitation of a 377nm laser, as shown in FIGS. 1 to 3, were measured using Edinburgh FLS 1000.
As can be seen from FIG. 1, the zirconia sintered bodies dyed with the fluorescent dyes of examples 1 to 4 exhibited a distinct blue emission peak between 400 and 500nm, and the peak value was much higher than that of the zirconia sintered bodies dyed with the fluorescent dyes of comparative examples 1 to 3; as can be seen from FIG. 2, between 500 and 600nm, the zirconia sintered bodies dyed with the fluorescent dyes of examples 1 to 4 exhibited more distinct green emission peaks than those of comparative examples 1 to 3; as can be seen from FIG. 3, the red emission peak was more pronounced between 600nm and 700nm for the zirconia sintered bodies dyed with the fluorescent dyes of examples 1 to 4 than for comparative examples 1 to 3.
The fluorescence color and fluorescence intensity of the final product were measured, and the results are shown in Table 8; the total transmittance of the final product was measured by a spectrophotometer, and the results are shown in Table 9.
TABLE 8
Colour of fluorescence | Intensity of fluorescence | Whether the product is qualified or not | |
Example 1 | Blue and white color | Class II | Qualified |
Example 2 | Blue and white | Class II | Qualified |
Example 3 | Blue and white | Class II | Qualified |
Example 4 | Blue and white | Class II | Qualified |
Comparative example 1 | Blue and white color | Class I | Fail to be qualified |
Comparative example 2 | Blue and white | Class I | Fail to be qualified |
Comparative example 3 | Blue and white | Class I | Fail to be qualified |
TABLE 9
Total transmittance (%) | |
Example 1 | 32.18 |
Example 2 | 40.89 |
Example 3 | 35.97 |
Example 4 | 38.53 |
Comparative example 1 | 30.26 |
Comparative example 2 | 31.61 |
Comparative example 3 | 42.72 |
In examples 1 to 4, the fluorescent colorant of the present application is used to dye the zirconia pre-sintered body, which can effectively ensure the fluorescent color and fluorescent intensity of the product, and the product completely approaches to natural teeth, and the total transmittance is ensured to be above 32.18%; in contrast, in comparative example 1, no La soluble salt and/or Y soluble salt was added, resulting in a lower fluorescence intensity; too much La soluble salt and/or Y soluble salt added in comparative examples 2 to 3 also resulted in a decrease in fluorescence intensity, which was different from that of natural teeth.
The invention is illustrated by the above examples of products and detailed methods of the invention, but the invention is not limited to the above products and detailed methods, i.e. it is not meant that the invention must rely on the above products and detailed methods for its implementation. It will be apparent to those skilled in the art that any modifications to the present invention, equivalents thereof, additions of additional operations, selection of specific ways, etc., are within the scope and disclosure of the present invention.
Claims (10)
1. A fluorescent stain comprising a fluorescent agent, a colorant, and a solvent;
the phosphor comprises any one of a first phosphor, a second phosphor, or a third phosphor, or a combination of at least two of the same;
the first fluorescent agent comprises at least one of Er soluble salt, dy soluble salt or In soluble salt, la soluble salt and/or Y soluble salt and Tm soluble salt;
the second fluorescent agent comprises Er soluble salt, eu soluble salt, dy soluble salt, la soluble salt and/or Y soluble salt;
the third fluorescent agent comprises at least one of Er soluble salt, dy soluble salt or In soluble salt, la soluble salt and/or Y soluble salt, tm soluble salt and Eu soluble salt;
the solvent comprises a complexing agent, a dispersing agent, and water and/or a low carbon alcohol.
2. The fluorescent coloring agent according to claim 1, wherein the amount of Tm soluble salt is 0 to 55.3wt%, the amount of Er soluble salt is 0 to 11.25wt%, the amount of Dy soluble salt is 0 to 12wt%, the amount of Eu soluble salt is 0 to 16.87wt%, the amount of In soluble salt is 0 to 10.69wt%, the amount of La soluble salt is 0 to 40wt%, the amount of Y soluble salt is 0 to 38.3wt%, and the balance is a coloring agent and a solvent, based on the total mass of the fluorescent coloring agent.
3. A fluorescent coloring agent according to claim 1 or 2, wherein the coloring agent comprises at least one of Tb soluble salt, ce soluble salt or Pr soluble salt, and Nd soluble salt.
4. The fluorescent coloring agent according to claim 3, wherein the Tb soluble salt is contained in an amount of 0 to 0.5wt%, the Ce soluble salt is contained in an amount of 0 to 2.11wt%, the Pr soluble salt is contained in an amount of 0 to 0.17wt%, the Nd soluble salt is contained in an amount of 0.13 to 1.5wt%, and the balance is a fluorescent agent and a solvent, based on the total mass of the fluorescent coloring agent.
5. A fluorescent coloring agent according to any one of claims 1 to 4, wherein said complexing agent comprises any one of formic acid, acetic acid, oxalic acid, hydrochloric acid, succinic acid, adipic acid, benzoic acid, phthalic acid, salicylic acid, EDTA, NTA, DTPA, EGTA, glycine, the amino acids lactic acid, citric acid, glycolic acid, polygluconic acid, polyacrylic acid, maleic acid or tartaric acid, or a combination of at least two thereof.
6. A fluorescent stain as claimed in any one of claims 1 to 5 wherein the dispersant comprises any one or a combination of at least two of polyvinylpyrrolidone, polysorbate, sorbitan fatty acid, triethylhexylphosphoric acid, sodium lauryl sulfate, methylpentanol, cellulose derivatives, polyacrylamide, guar gum, polyethylene glycol esters, oleic acid, fatty acids, polyethylene glycol, polyvinyl alcohol, polyvinyl butyral or polyacrylamide.
7. The fluorescent colorant according to any one of claims 1 to 6, wherein the solvent further comprises a thixotropic agent;
preferably, the thixotropic agent comprises any one of glucose, sucrose, polyethylene glycol, hydroxyethyl cellulose derivative, polyvinyl alcohol, polyacrylate, hydrogenated castor oil, polyamide wax or polydextrose, or a combination of at least two thereof.
8. A fluorescent stain according to any one of claims 1-7 wherein the lower alcohol comprises any one of ethanol, ethylene glycol, methanol, glycerol, isopropanol and 1, 3-butanediol or a combination of at least two thereof.
9. Use of a fluorescent stain as claimed in any one of claims 1 to 8 for staining zirconia dental restorative material.
10. Use of a fluorescent stain as claimed in claim 9 wherein the staining means comprises soaking, coating or spraying;
preferably, the soaking time is 1-9s.
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CN113105754A (en) * | 2020-10-10 | 2021-07-13 | 深圳爱尔创口腔技术有限公司 | Staining solution for zirconia dental product, method for producing zirconia dental product, and zirconia dental product |
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CN102438964A (en) * | 2009-03-23 | 2012-05-02 | 株式会社则武 | Fluorescent zirconia material |
CN105007883A (en) * | 2013-03-12 | 2015-10-28 | 3M创新有限公司 | Fluorescence imparting coloring solution for dental ceramics |
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