Zirconium oxide soaking coloration dyeing technique

A technology of zirconia and process, which is applied in the field of zirconia immersion coloring and dyeing process, which can solve the problems such as difficulty in uniform dyeing of brackets and poor coloring durability, and achieve the effects of short dipping time, uniform coloring, and improved production efficiency

Active Publication Date: 2016-12-07
珠海新茂义齿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process method is relatively simple. It soaks and dyes the formed brackets, and the brackets are difficult to be dyed evenly, and the coloring durability is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of zirconia immersion coloring dyeing process, comprises the following steps:

[0027] Step 1. Pre-sintering zirconia, the pre-sintering temperature is 1280°C, and the time is 20 minutes;

[0028] Step 2. After pulverizing the pre-sintered zirconia, add a ball mill to grind, and the grinding time is 8 minutes;

[0029] Step 3. soaking the zirconia obtained in step 2 in the dyeing solution;

[0030] Step 4. drying the zirconia obtained in step 3 with an ultraviolet lamp;

[0031] Step 5. Sinter the zirconia obtained in step 4 at 1570° C. for 35 minutes, cool the sintered zirconia to 1000° C. at 9° C. / min, and then cool down naturally.

[0032] Among them, the dyeing solution includes erbium ions, praseodymium ions and cobalt ions, the molar ratio of the three is 2:1:1, and the total concentration of dyeing ions is 0.12mol / L.

[0033] In the staining liquid, also include 0.6wt% polyethylene glycol and 0.3wt% sodium chloride.

[0034] The zirconia is immersed in...

Embodiment 2

[0038] A kind of zirconia immersion coloring dyeing process, comprises the following steps:

[0039] Step 1. Pre-sintering zirconia, the pre-sintering temperature is 1250°C, and the time is 30 minutes;

[0040] Step 2. After pulverizing the pre-sintered zirconia, add a ball mill to grind, and the grinding time is 5 minutes;

[0041] Step 3. soaking the zirconia obtained in step 2 in the dyeing solution;

[0042] Step 4. drying the zirconia obtained in step 3 with an ultraviolet lamp;

[0043] Step 5. Sinter the zirconia obtained in step 4 at 1550° C. for 45 minutes, cool the sintered zirconia to 1000° C. at 8° C. / min, and then cool down naturally.

[0044] Wherein, the dyeing solution includes erbium ions, praseodymium ions and iron ions, and the concentration of the dyeing ions is 0.05 mol / L.

[0045] In the staining solution, 0.5wt% polyethylene glycol and 0.5wt% sodium chloride are also included.

[0046] The zirconia is soaked in the dyeing solution at a temperature of...

Embodiment 3

[0050] A kind of zirconia immersion coloring dyeing process, comprises the following steps:

[0051] Step 1. Pre-sintering zirconia, the pre-sintering temperature is 1300°C, and the time is 15 minutes;

[0052] Step 2. After pulverizing the pre-sintered zirconia, add a ball mill to grind, and the grinding time is 10 minutes;

[0053] Step 3. soaking the zirconia obtained in step 2 in the dyeing solution;

[0054] Step 4. drying the zirconia obtained in step 3 with an ultraviolet lamp;

[0055] Step 5. Sinter the zirconia obtained in step 4 at 1580° C. for 30 minutes, cool the sintered zirconia to 1000° C. at 10° C. / min, and then cool down naturally.

[0056] Wherein, the dyeing solution includes erbium ions, cerium ions, neodymium ions, cobalt ions and iron ions, and the concentration of the dyeing ions is 0.20 mol / L.

[0057] In the staining solution, 0.8wt% polyethylene glycol and 0.2wt% sodium chloride are also included.

[0058] The zirconia is immersed in the dyeing sol...

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Abstract

The invention relates to dyeing of zirconium oxide, and particularly discloses a zirconium oxide soaking coloration dyeing technique. The technique comprises the following steps: presintering zirconium oxide; pulverizing the presintered zirconium oxide, and milling in a ball mill; soaking the zirconium oxide in a dyeing solution; drying with an ultraviolet lamp; and sintering at high temperature. The zirconium oxide dyeing technique has the advantages of short soaking dyeing time and higher production efficiency, can obtain the zirconium oxide with the color close to the teeth, and is suitable for industrial production.

Description

technical field [0001] The invention relates to the dyeing of zirconia, in particular to a zirconia soaking and coloring dyeing process. Background technique [0002] With the improvement of people's living standards, the application of dental materials is becoming more and more extensive. At present, as a new type of biological material, zirconia has excellent properties such as high strength, high hardness, good toughness and wear resistance, and also has good biocompatibility, so it is widely used as a dental restoration material. It is showing a broader application prospect in the field of oral materials. [0003] The zirconia porcelain block is white, which is different from the color and light transmittance of natural teeth, which cannot meet the aesthetic requirements of patients. In order to ensure the imitation of tooth color, the traditional method is to use opaque porcelain and increase the thickness of veneer porcelain, but this requires an increase in the amou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/85
CPCC04B41/009C04B41/50C04B41/85C04B35/48C04B41/4539
Inventor 陈良星梁鹏伟汪浩刘湘建
Owner 珠海新茂义齿科技有限公司
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