Yellow-white structure colored glaze as well as preparation method and application method thereof

Abstract

The invention discloses a yellow and white structure colored glaze and a preparation method and an application method thereof, and the structure colored glaze comprises the following raw materials by weight: 28-33% of glaze stone, 40-44% of borax, 9-15% of bone ash, 5-7% of glaze ash, 1-3% of quartz, 1-3% of lepidolite, 2-3% of bentonite, 1-2% of ultrafine alumina powder, 2-4% of cerium oxide, and 0.2-0.4% of sodium carboxymethyl cellulose. The preparation method comprises the following steps: burdening, mixing, ball-milling, sieving, stirring, glazing, firing and cooling to obtain the colored glaze with the yellow and white alternated structure. According to the invention, the artistic effect of the colored glaze with the yellow and white alternated structure is successfully realized by modulation of a glaze formula, improvement of a firing method and accurate control of the size of the small phase-splitting liquid drops, and the preparation method is simple in process, low in cost and convenient to use, so that the colored glaze has a wide market prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramics, and in particular to a yellow and white structural color glaze and its preparation method and application method. Background Art

[0002] As a unique color technology, structural color glaze has been widely used in the fields of ceramic art, glass products, optical materials, visual technology, textiles and fashion design. Different from traditional colorants, it produces colors through the optical interference and diffraction effects of microscopic structures. The color performance of structural color glaze is affected by the shape, size and arrangement of the microscopic structures. When light waves pass through these microscopic structures, they will interfere and diffract in a specific way to form the so-called structural colors. Different structures and arrangements will cause light waves of different wavelengths to interfere and diffract in different ways, ultimately presenting different color effects. Through structural color glaze, ceramic works or glass products can present unique color and luster effects, increasing the artistic sense and ornamental value of the works. Although there are relevant reports on structural color glaze at present, most of its colors are single colors, and the color sensory effect is not rich enough. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a yellow and white structural color glaze with simple process, low cost and convenient use, as well as its preparation method and application method.

[0004] The present invention is achieved through the following technical solutions: A yellow and white structural color glaze, characterized in that: the raw material formula weight percentage composition of the structural color glaze is: 28-33% of glaze fruit, 40-44% of borax, 9-15% of bone ash, 5-7% of glaze ash, 1-3% of quartz, 1-3% of lepidolite, 2-3% of bentonite, 1-2% of ultra-fine alumina powder, 2-4% of cerium oxide, and additionally 0.2-0.4% of sodium carboxymethylcellulose.

[0005] The preparation method of the above yellow and white structural color glaze is characterized by including the following steps: Step 1: Weigh each component of raw materials according to the formula weight percentage; Step 2: Stir the mixed materials of glaze fruit, borax, bone ash, glaze ash, quartz, lepidolite, bentonite, ultra-fine alumina powder, cerium oxide and sodium carboxymethylcellulose weighed in Step 1 evenly in water, and put them into a ball mill tank for ball milling; Step 3: Sieve the glaze slurry obtained after ball milling in Step 2 through a 100-mesh sieve; Step 4: Stir the glaze slurry after sieving in Step 3 for 10-20 minutes to obtain the finished glaze slurry.

[0006] In the ball milling process of the second step, the weight percentage of the mixture: balls: water is 1:2.5:1.2, the ball milling time is 10 min, and the rotation speed is 390 r / min.

[0007] The application method of the finished glaze slurry obtained by the above preparation method is characterized in that: the finished glaze slurry is applied on the surface of the green body, and after drying, it is first placed in a shuttle gas kiln for firing. After reaching the set temperature, the kiln door is opened to take out the green body and transferred to a muffle furnace for continuous firing, and finally it is naturally cooled to room temperature to obtain a yellow and white structural color glaze; The firing system in the shuttle gas kiln is as follows: in an oxidizing atmosphere, it is heated from room temperature to 750 °C at a rate of 5 °C / min, from 750 °C to 980 °C at a rate of 1.3 °C / min. The atmosphere in the kiln is changed to a reducing atmosphere at 980 °C, and it is heated from 980 °C to 1280 °C at a rate of 1.6 °C / min, and kept at 1280 °C for 0.5 h; The firing system in the muffle furnace is as follows: in an oxidizing atmosphere, it is kept at 900 °C for 1.5 h, and then heated from 900 °C to 1100 °C at a rate of 2.5 °C / min, and kept at 1100 °C for 2 h.

[0008] The chromaticity values of the yellow and white structural color glaze are: for yellow, L* = 63.71 - 70.92, a* = 1.70 - 4.90, b* = 6.41 - 8.57; for white, L* = 83.94 - 90.74, a* = -1.22 - 1.01, b* = 1.96 - 2.83.

[0009] In the present invention, by first firing in a gas kiln, the large surface tension in the reducing atmosphere promotes the complete melting of the glaze and the full reduction of high-valent iron. Cerium has an unfilled 4f electron layer, and the outermost layer has been filled to 6s 2 , and the second outermost layer (5s 2 , 5p 6 ) has been filled, and 5d is still empty or has only one electron. When the unstable electrons transition between the electron orbits of different energy levels, a steep and narrow absorption band of light is generated, and there is an absorption peak in the visible light part. The ultraviolet absorption band of Ce 4+ enters the visible light region, thereby making the glass produce an amber color, and an amber glaze surface is obtained by natural cooling without heat treatment. In the present invention, by improving the firing process, the green body is transferred into a muffle furnace with a preset heating system for heat treatment, and the size of the phase-separated small droplets is precisely controlled. When the droplet size reaches between 85 and 220 nm, the artistic effect of the yellow and white structural color glaze can be formed.

[0010] Through the modulation of the glaze formula and the improvement of the firing method, the present invention accurately controls the size of the phase-separated small droplets, and successfully realizes the artistic effect of the yellow and white structural color glaze, so it has a broad market prospect. Specific embodiments

[0011] To further elaborate on the present invention, the technical means and effects adopted to achieve the intended invention purpose, the present invention will be described in detail below in conjunction with preferred embodiments.

[0012] Example 1

[0013] A yellow and white structural color glaze, and the weight percentage composition of the raw material formula of the structural color glaze is: 28% of glaze fruit, 44% of borax, 9.5% of bone ash, 7% of glaze ash, 3% of quartz, 2% of lepidolite, 3% of bentonite, 1.5% of ultra-fine alumina powder, 2% of cerium oxide, and additionally 0.2% of sodium carboxymethylcellulose.

[0014] The preparation method of the yellow and white structural color glaze includes the following steps: Step 1: Weigh each component raw material according to the weight percentage of the formula; Step 2: Stir the mixture of glaze fruit, borax, bone ash, glaze ash, quartz, lepidolite, bentonite, ultra-fine alumina powder, cerium oxide and sodium carboxymethylcellulose weighed in Step 1 evenly in water, and put it into a ball mill tank for ball milling; Step 3: Pass the glaze slurry obtained after ball milling in Step 2 through a 100-mesh sieve; Step 4: Stir the glaze slurry passed through the sieve in Step 3 for 10 min to obtain the finished glaze slurry.

[0015] In the ball milling process of Step 2, the weight percentage of the mixture: balls: water is 1:2.5:1.2, the ball milling time is 10 min, and the rotation speed is 390 r / min.

[0016] The finished glaze slurry is applied on the surface of the green body, and after drying, it is first placed in a shuttle gas kiln for firing. The firing system is: in an oxidizing atmosphere, from room temperature to 750 °C, the temperature is raised at a rate of 5 °C / min, from 750 °C to 980 °C, the temperature is raised at a rate of 1.3 °C / min, the atmosphere in the kiln is changed to a reducing atmosphere at 980 °C, from 980 °C to 1280 °C, the temperature is raised at a rate of 1.6 °C / min, hold at 1280 °C for 0.5 h, then open the kiln door to take out the green body and transfer it to a muffle furnace preheated to 900 °C for continuous firing. The firing system is: in an oxidizing atmosphere, hold at 900 °C for 1.5 h, then from 900 °C to 1100 °C, the temperature is raised at a rate of 2.5 °C / min, hold at 1100 °C for 2 h, and finally cool naturally to room temperature to obtain the yellow and white structural color glaze. Its chromaticity values are: for yellow, L* = 63.71, a* = 4.90, b* = 6.49; for white, L* = 90.74, a* = -1.22, b* = 2.30.

[0017] Example 2

[0018] A yellow and white structural color glaze, the raw material formula of the structural color glaze is composed of the following components in weight percentage: 29.6% of glaze fruit, 41.9% of borax, 11.5% of bone ash, 5% of glaze ash, 2% of quartz, 3% of lepidolite, 2% of bentonite, 2% of ultrafine alumina powder, 3% of cerium oxide, and additionally 0.2% of sodium carboxymethyl cellulose.

[0019] The preparation method of the yellow and white structural color glaze includes the following steps: Step 1: Weigh each component of the raw materials according to the weight percentage of the formula. Step 2: Stir the mixture of glaze fruit, borax, bone ash, glaze ash, quartz, lepidolite, bentonite, ultrafine alumina powder, cerium oxide and sodium carboxymethyl cellulose weighed in Step 1 evenly in water, and put it into a ball mill tank for ball milling. Step 3: Pass the glaze slurry obtained after ball milling in Step 2 through a 100-mesh sieve. Step 4: Stir the glaze slurry passed through the sieve in Step 3 for 15 minutes to obtain the finished glaze slurry.

[0020] In the ball milling process of Step 2, the weight percentage of the mixture: balls: water is 1:2.5:1.2, the ball milling time is 10 minutes, and the rotation speed is 390 r / min.

[0021] Apply the finished glaze slurry on the surface of the green body. After drying, first place it in a shuttle gas kiln for firing. The firing system is as follows: in an oxidizing atmosphere, heat up from room temperature to 750 °C at a rate of 5 °C / min, heat up from 750 °C to 980 °C at a rate of 1.3 °C / min, turn the atmosphere in the kiln to a reducing atmosphere at 980 °C, heat up from 980 °C to 1280 °C at a rate of 1.6 °C / min, hold at 1280 °C for 0.5 h, then open the kiln door, take out the green body and transfer it to a muffle furnace preheated to 900 °C for continuous firing. The firing system is as follows: in an oxidizing atmosphere, hold at 900 °C for 1.5 h, then heat up from 900 °C to 1100 °C at a rate of 2.5 °C / min, hold at 1100 °C for 2 h, and finally cool naturally to room temperature to obtain the yellow and white structural color glaze. Its chromaticity values are: for yellow, L* = 67.09, a* = 4.84, b* = 6.41; for white, L* = 86.98, a* = 1.01, b* = 2.56.

[0022] Example 3

[0023] A yellow and white structural color glaze, the raw material formula of the structural color glaze is composed of the following components in weight percentage: 31% of glaze fruit, 40.5% of borax, 14% of bone ash, 5.5% of glaze ash, 1% of quartz, 1% of lepidolite, 2.5% of bentonite, 1% of ultrafine alumina powder, 3.5% of cerium oxide, and additionally 0.3% of sodium carboxymethyl cellulose.

[0024] The preparation method of the yellow and white structural color glaze includes the following steps: Step 1: Weigh each component raw material according to the weight percentage of the formula; Step 2: Stir the mixture of frit, borax, bone ash, glaze ash, quartz, lepidolite, bentonite, ultra-fine alumina powder, cerium oxide and sodium carboxymethyl cellulose weighed in Step 1 evenly in water, and put it into a ball mill tank for ball milling; Step 3: Sieve the glaze slurry obtained after ball milling in Step 2 through a 100-mesh sieve; Step 4: Stir the glaze slurry sieved in Step 3 for 20 min to obtain the finished glaze slurry.

[0025] In the ball milling process of Step 2, the weight percentage of the mixture: balls: water is 1:2.5:1.2, the ball milling time is 10 min, and the rotation speed is 390 r / min.

[0026] Apply the obtained finished glaze slurry on the surface of the green body. After drying, first place it in a shuttle gas kiln for firing. The firing system is as follows: in an oxidizing atmosphere, heat up from room temperature to 750 °C at a rate of 5 °C / min, heat up from 750 °C to 980 °C at a rate of 1.3 °C / min. When the temperature reaches 980 °C, convert the atmosphere in the kiln to a reducing atmosphere, heat up from 980 °C to 1280 °C at a rate of 1.6 °C / min, hold at 1280 °C for 0.5 h, then open the kiln door, take out the green body and transfer it to a muffle furnace preheated to 900 °C for continuous firing. The firing system is as follows: in an oxidizing atmosphere, hold at 900 °C for 1.5 h, then heat up from 900 °C to 1100 °C at a rate of 2.5 °C / min, hold at 1100 °C for 2 h, and finally cool naturally to room temperature to obtain a yellow and white interlayer structural color glaze. Its chromaticity values are: for yellow, L* = 68.20, a* = 2.86, b* = 8.57; for white, L* = 84.43, a* = 0.84, b* = 1.96.

[0027] Example 4

[0028] A yellow and white interlayer structural color glaze, and the weight percentage composition of the raw material formula of the structural color glaze is: frit 33%, borax 40%, bone ash 9%, glaze ash 5%, quartz 3%, lepidolite 3%, bentonite 2%, ultra-fine alumina powder 1%, cerium oxide 4%, plus 0.4% of sodium carboxymethyl cellulose.

[0029] The preparation method of the yellow and white interlayer structural color glaze includes the following steps: Step 1: Weigh each component raw material according to the weight percentage of the formula; Step 2: Stir the mixture of frit, borax, bone ash, glaze ash, quartz, lepidolite, bentonite, ultra-fine alumina powder, cerium oxide and sodium carboxymethyl cellulose weighed in Step 1 evenly in water, and put it into a ball mill tank for ball milling; Step 3: Sieve the glaze slurry obtained after ball milling in Step 2 through a 100-mesh sieve; Step 4: Stir the glaze slurry sieved in Step 3 for 10 min to obtain the finished glaze slurry.

[0030] In the mixing process of the ball milling operation in Step 2, the weight percentage of the mixture: balls: water is 1:2.5:1.2, the ball milling time is 10 min, and the rotation speed is 390 r / min.

[0031] The finished glaze slurry is applied on the surface of the green body. After drying, it is first placed in a shuttle gas kiln for firing. The firing regime is as follows: in an oxidizing atmosphere, it is heated from room temperature to 750 °C at a rate of 5 °C / min, from 750 °C to 980 °C at a rate of 1.3 °C / min. The atmosphere in the kiln is changed to a reducing atmosphere at 980 °C, and it is heated from 980 °C to 1280 °C at a rate of 1.6 °C / min. It is held at 1280 °C for 0.5 h, and then the kiln door is opened to take out the green body and transferred to a muffle furnace preheated to 900 °C for continuous firing. The firing regime is as follows: in an oxidizing atmosphere, it is held at 900 °C for 1.5 h, and then heated from 900 °C to 1100 °C at a rate of 2.5 °C / min. It is held at 1100 °C for 2 h, and finally cooled naturally to room temperature to obtain a yellow and white structural color glaze. Its chromaticity values are: for yellow, L* = 70.92, a* = 1.70, b* = 8.09; for white, L* = 83.94, a* = 0.14, b* = 2.83.

[0032] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, and improvements made within the principle and spirit of the present invention are all included in the protection scope of the present invention.

Claims

1. A yellow and white structural color glaze, characterized in that: The raw material formula of the structural color glaze is composed of 28-33% glaze fruit, 40-44% borax, 9-15% bone ash, 5-7% glaze ash, 1-3% quartz, 1-3% lepidolite, 2-3% bentonite, 1-2% superfine alumina powder, 2-4% cerium oxide, and 0.2-0.4% sodium carboxymethyl cellulose.

2. The preparation method of the yellow-white structural color glaze according to claim 1, characterized in that The steps include: Step 1: Weigh each component of raw materials according to the weight percentage of the formula; Step 2: Stir the mixture of glaze fruit, borax, bone ash, glaze ash, quartz, lepidolite, bentonite, ultrafine alumina powder, cerium oxide and sodium carboxymethyl cellulose weighed in step 1 in water and grind them in a ball mill; Step 3: Pass the glaze slurry obtained after ball milling in step 2 through a 100-mesh sieve; Step 4: Stir the glaze slurry screened in step 3 for 10 to 20 minutes to obtain a finished glaze slurry.

3. The preparation method according to claim 2, characterized in that: In the ball milling process of step 2, the weight percentage of the mixture: the ball: the water is 1:2.5:1.2, the ball milling time is 10 minutes, and the rotation speed is 390 r / min.

4. A method for applying the finished glaze slurry obtained by the preparation method according to claim 2, characterized in that: The finished glaze slurry is applied to the surface of the body, and after drying, it is first placed in a shuttle gas kiln for firing. After reaching the set temperature, the kiln door is opened to take out the body and transfer it to a muffle furnace for further firing, and finally naturally cooled to room temperature to obtain a yellow and white structural colored glaze; The firing system in the shuttle kiln is as follows: in an oxidizing atmosphere, the temperature is raised from room temperature to 750°C at a rate of 5°C / min, from 750°C to 980°C at a rate of 1.3°C / min, at 980°C the kiln is switched to a reducing atmosphere, from 980°C to 1280°C at a rate of 1.6°C / min, and kept at 1280°C for 0.5h; The firing system in the muffle furnace is: in an oxidizing atmosphere, keep at 900°C for 1.5 hours, then increase the temperature from 900°C to 1100°C at a rate of 2.5°C / min, and keep at 1100°C for 2 hours.

5. The application method according to claim 4, characterized in that: The chromaticity values ​​of the yellow and white alternating structural glaze are: L*=63.71-70.92, a*=1.70-4.90, b*=6.41-8.57 for yellow; L*=83.94-90.74, a*=-1.22-1.01, b*=1.96-2.83 for white.