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Blue base glaze for Konoha cup and method for making Konoha cup using the blue bottom glaze for Konoha cup

A technology of wood leaf cup and bottom glaze, applied in the field of ceramic materials, can solve the problems of not carefully examining whether there is heavy metal in porcelain, unclear leaf vein texture of wood leaf cup, unable to meet food-grade standards, etc., and achieve stable firing conditions. Reliable, enhance aesthetic value and aesthetic space, colorful and glossy effect

Active Publication Date: 2021-03-23
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant of the present invention has carried out a large number of experiments using colored glazes on the market, and found that the veins of the konjacs obtained by firing these common colored glazes are not clear or even unable to show the veins
[0005] Moreover, many colored glazes contain a large amount of heavy metals, which cannot meet food-grade standards.
For example, the patent application with the application number of 2013101794973 discloses a preparation method of colorful mother liquor Tianmu porcelain and its products, breaking through the preparation of yellow-blue vein patterns, black bottom glaze, and gray-brown fetal wood leaf Tianmu porcelain at that time. The bottleneck of porcelain provides a method of using natural minerals and chemical raw materials to prepare colorful mother liquor Tianmu porcelain. However, the preparation raw materials of this technology glaze contain chemical raw materials, and it has not been carefully verified whether there are heavy metals in the fired porcelain. If harmful substances are released from porcelain during use, it will endanger human health

Method used

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  • Blue base glaze for Konoha cup and method for making Konoha cup using the blue bottom glaze for Konoha cup
  • Blue base glaze for Konoha cup and method for making Konoha cup using the blue bottom glaze for Konoha cup
  • Blue base glaze for Konoha cup and method for making Konoha cup using the blue bottom glaze for Konoha cup

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The blue base glaze of the Konoha cup and the method for making the Konoha cup provided in this example adopt the raw materials and proportioning of Example 1 in Table 1, and the specific production steps are as follows:

[0037] (1) Obtaining the green body: select high white porcelain clay with low iron content, and adopt the conventional body forming and trimming methods of daily-use ceramics to prepare a green body with a thickness of 2-3mm, and store the green body in Dry naturally in a cool place to make the water content of the green body reach 1-2%;

[0038] (2) Low-temperature biscuit firing: use a kiln for daily-use ceramic production to carry out low-temperature biscuit firing on the naturally dried green body. The temperature of low-temperature biscuit firing is 850°C to prepare a biscuit green body; the specific firing of low-temperature bisque firing The preparation method is: heat from room temperature to 850°C at a heating rate of 2-3°C / min, and keep war...

Embodiment 2

[0055] The blue bottom glaze of the Konoha cup and the method for making the Konoha cup provided in this example adopt the raw materials and proportions of Example 2 in Table 1, and the specific production steps are as follows:

[0056] (1) Obtain the green body: choose high white porcelain clay with low iron content, adopt the conventional green body molding and trimming methods of daily-use ceramics, prepare a 2-3mm thick green body, and store the green body in a cool place Dry naturally, so that the water content of the green body reaches 1-2%;

[0057] (2) Low-temperature biscuit firing: use a kiln for daily-use ceramic production to carry out low-temperature biscuit firing on the naturally dried green body. The temperature of low-temperature biscuit firing is 850°C to prepare a biscuit green body; the specific firing of low-temperature bisque firing The preparation method is: heat from room temperature to 850°C at a heating rate of 2-3°C / min, and keep warm for 30 minutes;...

Embodiment 3

[0066] The blue bottom glaze of the Konoha cup and the method for making the Konoha cup provided in this embodiment adopt the raw materials and proportioning of Example 3 in Table 1, and the specific manufacturing method differs from Example 2 in that:

[0067] In step (6), when firing at high temperature, start from room temperature, at a heating rate of 3°C / min, keep warm for 30min every 200°C, heat up to 1230°C, keep warm for 30min, and then cool naturally to room temperature.

[0068] When glazing in step (4) of the above-mentioned examples 1-3, it is not limited to the method of spraying glaze, but the method of dipping glaze can also be used, but the glaze slurry needs to be diluted, if it is too thick, the glaze will shrink easily, and the green body is dipped in glaze. Afterwards, the glaze layer needs to be dehydrated by drying or drying.

[0069] The traditional black-glazed wooden leaf cup is not affected, but the application of the present invention uses blue glaze...

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Abstract

The invention discloses a wood leaf cup blue ground coat and a method for manufacturing a wood leaf cup by adopting the wood leaf cup blue ground coat. The wood leaf cup blue ground coat comprises a glaze A and a glaze B. The glaze B accounts for 10% of the weight of the glaze A; he glaze A is prepared from the following raw materials in percentage by weight: 4%-8% of chalk, 5%-7% of dolomite, 5%-8% of barium carbonate, 5%-7% of zinc white, 10%-15% of kaolin, 25%-35% of quartz, 5%-10% of tin oxide, 1%-3% of copper oxide, 18%-23% of frit and 0.1%-0.4% of pigment; the glaze B is copper chloride.According to the wood leaf cup blue ground coat and the method for manufacturing the wood leaf cup by adopting the wood leaf cup blue ground coat, the color development intensity, stability, fluidityand color development uniformity of the glaze are proper, leaf veins are clear, and the color is bright and glossy; the ground coat is free of heavy metal toxicity after being sintered at high temperature and can reach the food-grade standard; firing conditions are stable and reliable, and operability is high.

Description

technical field [0001] The invention relates to a blue base glaze for a Konoha cup and a method for making a Konoha cup by using the blue bottom glaze for a Konoha cup, belonging to the technical field of ceramic materials. Background technique [0002] The Konoha cup is made by sticking the Konoha on the surface of the glazed green body and firing at high temperature. The leaves and glaze undergo complex crystal changes under high temperature and become colored, so that the meridians of the Konoha can be clearly and vividly displayed on the porcelain. High artistic value and economic value. [0003] There are strict requirements for the coloring effect of the leaves on the porcelain and the processes of glazing and firing. Although Konoha has a firing history of more than 1,200 years, black glazed porcelain has always been the most representative. For example, the patent application with the application number 201710201678X discloses a preparation method and application m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/02C03C8/14C04B41/86C04B33/24
CPCC03C8/02C03C8/14C04B33/24C04B41/5022C04B41/86
Inventor 冯善鑫
Owner QILU UNIV OF TECH
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