A yellow-white alternating structural color glaze, its preparation method and application method

Abstract

The present invention discloses a yellow-and-white structural colored glaze, and its preparation and application methods. The raw material formula of the structural colored glaze is composed, by weight, 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% ultrafine alumina powder, 2-4% cerium oxide, and 0.2-0.4% sodium carboxymethyl cellulose. The ingredients are prepared, mixed, ball-milled, sieved, stirred, glazed, fired, and cooled to obtain the yellow-and-white structural colored glaze. The present invention achieves the artistic effect of the yellow-and-white structural colored glaze by improving the glaze formulation and firing method, precisely controlling the size of the phase-separated droplets. Furthermore, the preparation method is simple, inexpensive, and easy to use, and therefore has broad market prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramics, and in particular to a yellow and white alternating structured colored glaze and a preparation method and an application method thereof. Background Art

[0002] Structural glaze, a unique color technology, has been widely used in fields such as ceramic art, glassware, optical materials, visual technology, textiles, and fashion design. Unlike traditional colorants, it produces color through the interference and diffraction effects of light on microscopic structures. The color of structural glaze is influenced by the shape, size, and arrangement of these tiny structures. When light waves pass through these tiny structures, they interfere and diffract in specific patterns, forming so-called structural colors. Different structures and arrangements cause different wavelengths of light to interfere and diffract in different ways, ultimately presenting different color effects. Structural glaze can create unique color and gloss effects in ceramic or glass works, enhancing the artistic appeal and aesthetic appeal of the work. Although there are reports on structural glaze, most of these colors are monochromatic, lacking in color richness. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a yellow and white alternating structured colored glaze having a simple process, low cost and ease of use, as well as a preparation method and an application method thereof.

[0004] The present invention is achieved through the following technical solution: a yellow and white alternating structural colored glaze, characterized in that the raw material formula of the structural colored glaze is composed of 28-33% glaze fruit, 40-44% borax, 9-15% bone ash, 5-7% glaze dust, 1-3% quartz, 1-3% lepidolite, 2-3% bentonite, 1-2% ultrafine alumina powder, 2-4% cerium oxide, and 0.2-0.4% sodium carboxymethyl cellulose in addition.

[0005] The method for preparing the yellow and white alternating structured colored glaze is characterized by comprising the following steps:

[0006] Step 1: Weigh the raw materials of each component according to the weight percentage of the formula;

[0007] 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 into water and mix well, and then put the mixture into a ball milling jar for ball milling;

[0008] Step 3: Pass the glaze slurry obtained after ball milling in step 2 through a 100-mesh sieve;

[0009] Step 4: Stir the glaze slurry sieved in step 3 for 10 to 20 minutes to obtain a finished glaze slurry.

[0010] 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.

[0011] The method for applying the finished glaze slurry obtained by the above preparation method is characterized in that: the finished glaze slurry is applied to 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, the green body is taken out, and transferred to a muffle furnace for further firing. Finally, it is naturally cooled to room temperature to obtain a yellow and white structural colored glaze;

[0012] The firing schedule 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, then from 750°C to 980°C at a rate of 1.3°C / min, then at 980°C, the kiln is switched to a reducing atmosphere, then the temperature is raised from 980°C to 1280°C at a rate of 1.6°C / min, and then held at 1280°C for 0.5h.

[0013] The firing system in the muffle furnace is as follows: in an oxidizing atmosphere, keeping the temperature at 900°C for 1.5 hours, then heating from 900°C to 1100°C at a rate of 2.5°C / min, and keeping the temperature at 1100°C for 2 hours.

[0014] The chromaticity values of the yellow and white alternating structural glaze are as follows: 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.

[0015] The present invention is fired in a gas kiln first, and the surface tension under the reducing atmosphere is large to promote the complete melting of the glaze and fully reduce the high-valent iron. Cerium has an unfilled 4f electron layer, and the outermost layer has been filled to 6s 2 , the second outer layer (5s 2 , 5p 6 ) is full, and 5d is still empty or has only one electron. When unstable electrons jump between electron orbits of different energy levels, a steep and narrow absorption band is generated, with an absorption peak in the visible light part. 4+ The ultraviolet absorption band of the glass enters the visible light region, thus giving the glass an amber color. The amber glaze is obtained by cooling the glass naturally without heat treatment. This invention improves the firing process by transferring the green body into a muffle furnace with a pre-set heating system for heat treatment. The size of the phase-separated droplets is precisely controlled. Only when the droplet size reaches between 85 and 220 nm can the artistic effect of the yellow and white alternating structured glaze be achieved.

[0016] The patented invention achieves the artistic effect of yellow and white alternating structural glaze by adjusting the glaze formula and improving the firing method, accurately controlling the size of the small phase-separated droplets, and therefore has broad market prospects. DETAILED DESCRIPTION

[0017] In order to further illustrate the present invention and the technical means and effects adopted to achieve the predetermined purpose of the invention, the present invention is described in detail below in conjunction with preferred embodiments.

[0018] Example 1

[0019] A yellow and white structural colored glaze, wherein the raw material formula of the structural colored glaze comprises the following composition by weight: 28% glaze fruit, 44% borax, 9.5% bone ash, 7% glaze dust, 3% quartz, 2% lepidolite, 3% bentonite, 1.5% ultrafine alumina powder, 2% cerium oxide, and 0.2% sodium carboxymethyl cellulose.

[0020] The method for preparing the yellow and white alternating structured colored glaze comprises the following steps:

[0021] Step 1: Weigh the raw materials of each component according to the weight percentage of the formula;

[0022] 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 into water and mix well, and then put the mixture into a ball milling jar for ball milling;

[0023] Step 3: Pass the glaze slurry obtained after ball milling in step 2 through a 100-mesh sieve;

[0024] Step 4: Stir the glaze slurry after screening in step 3 for 10 minutes 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 minutes, and the rotation speed is 390 r / min.

[0026] The finished glaze slurry is applied to the surface of the green body, and after drying, it is first placed in a shuttle gas kiln for firing. The firing system 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. Then, the kiln door is opened to take out the green body and transferred to a kiln preheated to 90 The firing was continued in a muffle furnace at 0℃, and the firing system was as follows: in an oxidizing atmosphere, keeping at 900℃ for 1.5h, then heating from 900℃ to 1100℃ at a rate of 2.5℃ / min, keeping at 1100℃ for 2h, and finally naturally cooling to room temperature to obtain a yellow and white alternating structural glaze with chromaticity values: L*=63.71, a*=4.90, b*=6.49 for yellow; L*=90.74, a*=-1.22, b*=2.30 for white.

[0027] Example 2

[0028] A yellow and white structural colored glaze, wherein the raw material formula of the structural colored glaze comprises the following composition by weight: 29.6% glaze fruit, 41.9% borax, 11.5% bone ash, 5% glaze dust, 2% quartz, 3% lepidolite, 2% bentonite, 2% ultrafine alumina powder, 3% cerium oxide, and 0.2% sodium carboxymethyl cellulose.

[0029] The method for preparing the yellow and white alternating structured colored glaze comprises the following steps:

[0030] Step 1: Weigh the raw materials of each component according to the weight percentage of the formula;

[0031] 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 into water and mix well, and then put the mixture into a ball milling jar for ball milling;

[0032] Step 3: Pass the glaze slurry obtained after ball milling in step 2 through a 100-mesh sieve;

[0033] Step 4: Stir the glaze slurry after screening in step 3 for 15 minutes to obtain the finished glaze slurry.

[0034] 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.

[0035] The finished glaze slurry is applied to the surface of the green body, and after drying, it is first placed in a shuttle gas kiln for firing. The firing system 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. Then, the kiln door is opened to take out the green body and transferred to a kiln preheated to 90 The firing was continued in a muffle furnace at 0℃, and the firing system was as follows: in an oxidizing atmosphere, keeping at 900℃ for 1.5h, then heating from 900℃ to 1100℃ at a rate of 2.5℃ / min, keeping at 1100℃ for 2h, and finally naturally cooling to room temperature to obtain a yellow and white alternating structural glaze with chromaticity values: L*=67.09, a*=4.84, b*=6.41 for yellow; L*=86.98, a*=1.01, b*=2.56 for white.

[0036] Example 3

[0037] A yellow and white alternating structural colored glaze comprises the following raw material formula by weight percentage: 31% glaze fruit, 40.5% borax, 14% bone ash, 5.5% glaze ash, 1% quartz, 1% lepidolite, 2.5% bentonite, 1% ultrafine alumina powder, 3.5% cerium oxide, and 0.3% sodium carboxymethyl cellulose.

[0038] The method for preparing the yellow and white alternating structured colored glaze comprises the following steps:

[0039] Step 1: Weigh the raw materials of each component according to the weight percentage of the formula;

[0040] 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 into water and mix well, and then put the mixture into a ball milling jar for ball milling;

[0041] Step 3: Pass the glaze slurry obtained after ball milling in step 2 through a 100-mesh sieve;

[0042] Step 4: Stir the glaze slurry after screening in step 3 for 20 minutes to obtain the finished glaze slurry.

[0043] 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.

[0044] The finished glaze slurry is applied to the surface of the green body, and after drying, it is first placed in a shuttle gas kiln for firing. The firing system 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. Then, the kiln door is opened to take out the green body and transferred to a kiln preheated to 90 The firing was continued in a muffle furnace at 0℃, and the firing system was as follows: in an oxidizing atmosphere, keeping at 900℃ for 1.5h, then heating from 900℃ to 1100℃ at a rate of 2.5℃ / min, keeping at 1100℃ for 2h, and finally naturally cooling to room temperature to obtain a yellow and white alternating structural glaze with chromaticity values: L*=68.20, a*=2.86, b*=8.57 for yellow; L*=84.43, a*=0.84, b*=1.96 for white.

[0045] Example 4

[0046] A yellow and white structural colored glaze, wherein the raw material formula of the structural colored glaze comprises the following composition by weight: 33% glaze fruit, 40% borax, 9% bone ash, 5% glaze ash, 3% quartz, 3% lepidolite, 2% bentonite, 1% ultrafine alumina powder, 4% cerium oxide, and 0.4% sodium carboxymethyl cellulose.

[0047] The method for preparing the yellow and white alternating structured colored glaze comprises the following steps:

[0048] Step 1: Weigh the raw materials of each component according to the weight percentage of the formula;

[0049] 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 into water and mix well, and then put the mixture into a ball milling jar for ball milling;

[0050] Step 3: Pass the glaze slurry obtained after ball milling in step 2 through a 100-mesh sieve;

[0051] Step 4: Stir the glaze slurry after screening in step 3 for 10 minutes to obtain the finished glaze slurry.

[0052] 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.

[0053] The finished glaze slurry is applied to the surface of the green body, and after drying, it is first placed in a shuttle gas kiln for firing. The firing system 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. Then, the kiln door is opened to take out the green body and transferred to a kiln preheated to 90 The firing was continued in a muffle furnace at 0℃, and the firing system was as follows: in an oxidizing atmosphere, keeping at 900℃ for 1.5h, then heating from 900℃ to 1100℃ at a rate of 2.5℃ / min, keeping at 1100℃ for 2h, and finally naturally cooling to room temperature to obtain a yellow and white alternating structural glaze with chromaticity values: L*=70.92, a*=1.70, b*=8.09 for yellow; L*=83.94, a*=0.14, b*=2.83 for white.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles and spirit of the present invention are included in the scope of protection of the present invention.

Claims

1. A method for preparing a yellow and white structural glaze, characterized in that: The steps include: Step 1: Weighing the raw materials of each component according to the weight percentage of the formula, 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% ultrafine alumina powder, 2-4% cerium oxide, and 0.2-0.4% sodium carboxymethyl cellulose; 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 into water and mix well, and then put the mixture into a ball milling jar 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 after screening in step 3 for 10 to 20 minutes to obtain a finished glaze slurry; Step 5: The finished glaze slurry is applied to the surface of the green body, and after drying, it is first placed in a shuttle kiln for firing. After reaching the set temperature, the kiln door is opened, the green body is taken out, and transferred to a muffle furnace for further firing. Finally, it is naturally cooled to room temperature to obtain a yellow and white structural glaze; The firing schedule 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, then from 750°C to 980°C at a rate of 1.3°C / min, then at 980°C, the kiln is switched to a reducing atmosphere, then the temperature is raised from 980°C to 1280°C at a rate of 1.6°C / min, and then held at 1280°C for 0.5h. The firing system in the muffle furnace is as follows: in an oxidizing atmosphere, keeping the temperature at 900°C for 1.5 hours, then heating from 900°C to 1100°C at a rate of 2.5°C / min, and keeping the temperature at 1100°C for 2 hours.

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

3. A yellow and white structural glaze, characterized in that: The yellow and white alternating structural glaze is prepared by the preparation method according to claim 2, and 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.