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A kind of yellow bottom glaze of Konoha and the method of making Konoha by using the yellow bottom glaze of Konoha

A technology of Konoha and bottom glaze, which is applied in the field of ceramic materials, can solve the problems of heavy metal retention in porcelain, unclear texture of Konoha leaf veins, and failure to meet food-grade standards, etc., and achieve stable and reliable firing conditions, and improve Aesthetic value and aesthetic space, colorful and glossy effect

Active Publication Date: 2021-06-15
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 application number 2013101794973 discloses a preparation method of colorful mother liquor Tianmu porcelain and its products, breaking through the traditional method of preparing yellow vein patterns, black bottom glaze, and gray-brown wooden leaf Tianmu porcelain at that time. Bottleneck, it provides a method of using natural minerals and chemical raw materials to prepare colorful mother liquor Tianmu porcelain, but 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 during use, it will endanger human health

Method used

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  • A kind of yellow bottom glaze of Konoha and the method of making Konoha by using the yellow bottom glaze of Konoha
  • A kind of yellow bottom glaze of Konoha and the method of making Konoha by using the yellow bottom glaze of Konoha
  • A kind of yellow bottom glaze of Konoha and the method of making Konoha by using the yellow bottom glaze of Konoha

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The yellow bottom 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:

[0038] (1) Obtaining the green body: select high white porcelain clay with low iron content, adopt the conventional green body molding and trimming methods of daily-use ceramics, prepare a 3 mm 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%;

[0039] (2) Low-temperature biscuit firing: use a kiln for daily-use ceramics production to carry out low-temperature biscuit firing on the naturally dried green body. The temperature of low-temperature biscuit firing is 840°C to prepare a biscuit green body; the specific firing of low-temperature bisque firing The preparation method is: heating from room temperature to 840°C at a heating rate of 2-3°C / min, and holding for 30 ...

Embodiment 2

[0056] The yellow 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:

[0057] (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 the green body with a thickness of 2.4mm, and store the green body in a cool place Dry naturally, so that the water content of the green body reaches 1-2%;

[0058] (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 wa...

Embodiment 3

[0067] The yellow base 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:

[0068] In step (6), when firing at a high temperature, start from room temperature, at a rate of 3°C / min, keep warm for 30min every 200°C, heat up to 1250°C, keep warm for 30min, and then cool naturally to room temperature.

[0069] 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.

[0070] The traditional black-glazed wooden leaf cup is not affected, but the application of the present invention uses yellow glaze, th...

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Abstract

The invention discloses a yellow bottom glaze for a wooden leaf cup and a method for making a wooden leaf cup using the yellow bottom glaze for a wooden leaf cup. The yellow bottom glaze for a wooden leaf cup includes glaze A and glaze B, and glaze B occupies glaze A. 10% by weight, glaze A is made of the following raw materials by weight percentage: feldspar 5%-8%, dolomite 8%-10%, kaolin 9%-14%, quartz 9%-11%, frit 50% %‑60%, pigment 9%‑12%; glaze B is chromium chloride hexahydrate. The yellow base glaze for the wooden leaf cup and the method for making the wooden leaf cup by using the yellow bottom glaze for the wooden leaf cup, the color strength, stability, fluidity and uniformity of color development of the glaze are appropriate, the veins of the leaves are clear, and the color is bright and vivid. Gloss; the bottom glaze has no heavy metal toxicity after high-temperature firing, and can reach food-grade standards; the firing conditions are stable and reliable, and the operability is strong, breaking the limitation of using a single black bottom glaze for traditional Konoha cups, and expanding the scope of Konoha cups Expansion capacity.

Description

technical field [0001] The invention relates to a yellow base glaze for a wooden leaf cup and a method for making a wooden leaf cup by using the yellow bottom glaze for a wooden leaf 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 metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/20C04B41/89
CPCC03C8/20C04B41/009C04B41/52C04B41/89C04B33/04C04B41/5022C04B41/4543C04B41/46C04B41/4554C04B41/4572C04B41/0072
Inventor 冯善鑫刘木森
Owner QILU UNIV OF TECH
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