Black bottom erythema oil drop Tianmu glaze ceramics and its preparation technology

A preparation process and erythema technology, applied in the field of ceramic products, can solve the problems such as the large gap between the red eyes, the lack of glaze on the porcelain surface, and the inability to reflect the red spots, etc., and achieve a beautiful color, warm texture, high appreciation value and artistic value. Effect

Active Publication Date: 2020-07-21
福建德化陶知然陶瓷文化创意有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of glaze ratio, chemical hair coloring agents are cheap and easy to obtain, but the effect of the Tianmu glaze produced is far from that of the original ore glaze. Fluidity; From the point of view of the firing process, this kind of red Yaobian Tianmu ceramics uses ferric oxide as the main coloring agent, so it must be fired in an oxidizing flame atmosphere, otherwise when the kiln temperature reaches above 1000°C, It begins to decompose into iron oxide and dissolves in the glaze, which cannot reflect red spots, while the traditional Jianzhan Tianmu glaze is fired with reduced glaze. The glaze has no brilliant color, but it has a restrained and comfortable texture.
From the two aspects of glaze composition and firing process, although this method can produce red obsidian Tianmu ceramics, its effect is far from the traditional red Tianmu ceramics and needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0027] Red-spotted oil-dropped Tianmu glaze ceramics on a black background, including an iron body body and red-spotted oil-dropped glaze,

[0028] The raw materials and parts by weight of the iron body body are as follows: 43 parts of Shuiji clay, 23 parts of black mud, 18 parts of laterite, 11 parts of sericite, 3 parts of calcite, and 2 parts of feldspar, wherein iron oxide in the raw material of iron body body The total amount is 7%;

[0029] Erythema oil drop glaze, its raw material parts by weight are as follows: 28 parts of Shuiji clay, 24 parts of quartz, 27 parts of feldspar, 6 parts of talc, 7 parts of andalusite, 4 parts of wollastonite, 2 parts of hematite, 2 parts of kaolin parts, and the total amount of iron oxide in the erythema oil drop glaze raw material is 12%.

specific Embodiment 2

[0031] Black-bottomed erythema oil-drop Tianmu glaze ceramics, including iron body body and erythema oil-drop glaze, its raw materials and parts by weight are as follows:

[0032] The raw material and parts by weight of the iron body body are as follows: 48 parts of Shuiji clay, 21 parts of black mud, 14 parts of laterite, 12 parts of sericite, 2 parts of calcite, and 3 parts of feldspar. The total amount of iron oxide is 6%;

[0033] The erythema oil drop glaze, its raw material parts by weight are as follows: 24 parts of Shuiji clay, 29 parts of quartz, 23 parts of feldspar, 8 parts of talc, 6 parts of andalusite, 2 parts of wollastonite, 5 parts of hematite, 3 parts of kaolin, and the total amount of iron oxide in the erythema oil drop glaze material is 11%.

[0034] The preparation process of the erythema oil drop tianmu glaze ceramics with black background, the preparation of the above erythema oil drop tianmu glaze ceramics with black background, the specific steps are ...

Embodiment 3

[0041] The preparation process of the erythema oil drop tianmu glaze ceramics with black background, the preparation of the above erythema oil drop tianmu glaze ceramics with black background, the specific steps are as follows:

[0042] Step 1, batching ingredients according to the raw material formula composition of the iron tire body, wet grinding the raw materials in a ball mill to make iron tire body slurry;

[0043] Step 2, passing the ground iron tire body slurry through a 150-mesh sieve, dehydrating, and drying to make an iron tire body;

[0044] Step 3, according to the ingredients of the erythema oil drop glaze raw material composition, the raw materials are wet-ground in a ball mill and passed through a 180-mesh sieve to make the erythema oil drop glaze;

[0045] Step 4, the iron tire green body in step 2 is fired at 620°C to form an iron tire green body with a moisture content of 1.5%, and the erythema oil drop glaze prepared in step 3 is applied to the iron tire gree...

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Abstract

The invention belongs to the field of ceramic products, and particularly relates to black-base red-speckle oil-drop temmoku glaze ceramic and a preparing process thereof. The ceramic includes an iron matrix blank and a red-spotted oil-drop glaze material. According to the ceramic and the method, the fired ceramic has a purple black matrix, the red-spotted oil-drop glaze material shows dark red speckles from inside to outside, crystallized particles are preserved in a glaze layer, and a flowing sense during high-temperature molding of the glaze can be observed obviously when the ceramic is observed with a magnifying lens. During firing, a reducing atmosphere is used and nitrogen is fed during firing to perform a reaction, and elements in the red-spotted oil-drop glaze material and the iron matrix blank are extracted to help combustion so that glaze raw materials are changed and recombined. The ceramic has beautiful colors, warm and humid hand feel, and high value of appreciation and artistic value.

Description

technical field [0001] The invention belongs to the field of ceramic products, in particular, the invention relates to a kind of ceramics with erythema on a black background and a celestial eye glaze ceramic and a preparation process. Background technique [0002] Tianmu glaze, which was created and fired in the Song Dynasty, is one of the special varieties of black glaze. It is characterized by the formation of dot-shaped crystals with metallic luster in different sizes in the black glaze layer of the bowl. The diameter of the large one is several millimeters, and the small one is only The size of a needle tip, there are golden yellow and silver white metallic luster dots, that is, like stars twinkling in the night sky, very like drops of crystal oil drops, hence the name "oil drop glaze". [0003] There are countless crystalline spots of different sizes unevenly protruding on the black glaze surface of the kiln. Those with a color like gold are called "golden oil drops", t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B33/34C03C8/00C04B41/86
CPCC03C8/00C04B33/13C04B33/34C04B41/5022C04B41/86C04B2235/3208C04B2235/3463C04B2235/3472C04B2235/3481C04B2235/656C04B2235/658C04B2235/6583C04B2235/661C04B41/4539C04B41/0072
Inventor 张明贵
Owner 福建德化陶知然陶瓷文化创意有限公司
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