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Dehua snow white porcelain and its preparation method

A snow-white, porcelain technology, applied in the field of porcelain preparation, can solve the problems of lack of color and luster in Dehua white porcelain, such as fineness, compactness, loss of firing process, etc., and achieve the effect of moist color, high transparency and fine glaze surface

Active Publication Date: 2019-09-24
福建省德化县臻晖陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials and firing techniques of traditional snow-white porcelain have been lost, while the existing white porcelain can achieve the whiteness of traditional onion snow-white porcelain or even higher through the combination of chemical glazes, but it lacks the tradition of Dehua white porcelain in terms of color and luster. It is delicate and dense, and the traditional snow-white porcelain is not as white as possible.

Method used

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Examples

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Effect test

preparation example Construction

[0038] The preparation process of Dehua Snow White Porcelain specifically includes the following steps:

[0039] (1) weighing ingredients according to the raw material formula of the snow-white body and the snow-white glaze, pulverizing, mixing, and wet-milling the raw materials respectively to obtain the snow-white body slurry and the snow-white glaze;

[0040] (2) The snow-white base slurry and the snow-white glaze prepared in step (1) are removed iron repeatedly through a magnetic separator, until the iron content in the snow-white base slurry and the snow-white glaze is lower than 0.05%;

[0041] (3) use the snow-white base slurry raw material that step (2) makes to make ceramic body;

[0042] (4) Put the ceramic body into a kiln, and biscuit at 500-620° C. for 4-5 hours to obtain a ceramic body;

[0043] (5) Snow white glaze is applied on the surface of ceramic biscuit;

[0044] (6) After the glaze on the ceramic green body is dried, put it into the kiln and fire it in ...

Embodiment 1

[0056] Dehua snow white porcelain, including snow white body and snow white glaze,

[0057] The snow-white green body includes the following raw materials in parts by weight: 40 parts of Dehua high territory, 40 parts of Dehua potassium feldspar, and 25 parts of Dehua quartz.

[0058] And the chemical composition of the white body is as follows: K 2 O: 3.2%, Na 2 O: 1%, Al 2 o 3 : 20.5%, Fe 2 o 3 : 0.02%, SiO 2 : 68.48%, ZrO 2 : 0.92%, ZnO: 1.62%, I.L: 4.26%.

[0059] The snow-white glaze includes the following raw materials in parts by weight: 2 parts of Dehua high territory, 15 parts of Dehua limestone, 39 parts of Dehua potassium feldspar, 46 parts of Dehua quartz, 5 parts of white corundum, and 3 parts of clam powder.

[0060] And the chemical composition of snow white glaze is as follows: K 2 O: 4.25%, Na 2 O: 1.65%, CaO: 6.4%, Al 2 o 3 : 10%, Fe 2 o 3 : 0.04%, SiO 2 : 70.58%, I.L: 7.08%.

[0061] The preparation process of Dehua Snow White Porcelain speci...

Embodiment 2

[0080] Dehua snow white porcelain, including snow white body and snow white glaze,

[0081] The snow-white green body includes the following raw materials in parts by weight: 50 parts of Dehua high territory, 30 parts of Dehua potassium feldspar, and 15 parts of Dehua quartz.

[0082] And the chemical composition of the white body is as follows: K 2 O: 3.9%, Na 2 O: 1.2%, Al 2 o 3 : 26.2%, Fe 2 o 3 : 0.04%, SiO 2 : 60.76%, ZrO 2 : 0.74%, ZnO: 1.96%, I.L: 5.2%.

[0083] The snow-white glaze includes the following raw materials in parts by weight: 4 parts of Dehua high territory, 10 parts of Dehua limestone, 48 parts of Dehua potassium feldspar, 36 parts of Dehua quartz, 8 parts of white corundum, and 1 part of clam powder.

[0084] And the chemical composition of snow white glaze is as follows: K 2 O: 5.5%, Na 2 O: 1.35%, CaO: 7.8%, Al 2 o 3 : 12.3%, Fe 2 o 3 : 0.02%, SiO 2 : 64.38%, I.L: 8.65%.

[0085] The preparation process of Dehua Snow White Porcelain spec...

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Abstract

The invention relates to a Dehua snow-white ceramic and a preparation method thereof. The Dehua snow-white ceramic comprises a show-white green body and a show-white glaze; the show-white green body is prepared from the following raw materials in parts by weight: Dehua kaolin, Dehua potassium feldspar and Dehua quartz; the show-white glaze is prepared from the following raw materials in parts by weight: Dehua kaolin, Dehua limestone, Dehua potassium feldspar, Dehua quartz, white corundum and clam meal; the prepared Dehua snow-white ceramic has whiteness of 83-85 degrees, water absorption of 0,transmissivity of above 15% (1mm), white and pure appearance and fine glaze; local Dehua raw materials are finely selected as the raw materials for baking the snow-white ceramic; the chemical constituents of the raw materials are strictly controlled; zirconium oxide and zinc oxide are introduced into the raw materials of the green body, so that the baked green body is prevented from yellowing andthe whiteness of the green body is similar to the whiteness of snow.

Description

technical field [0001] The invention belongs to the field of porcelain preparation, in particular to a Dehua snow-white porcelain and its preparation method Background technique [0002] Dehua white porcelain originated in the Song and Yuan Dynasties, was famous in the Ming Dynasty, and was extended in the early Qing Dynasty. It has a unique style in the white porcelain system in my country, occupies an important position in the history of ceramic development, and has the reputation of "Oriental Art" internationally. . Dehua white porcelain in the Ming and Qing dynasties was fired with a transparent glaze on a low-iron porcelain body. Dehua white porcelain of the Ming Dynasty has a pure white, solid and dense body bone. The technology of its body glaze strives to pursue the perfection of jade texture, which is unique in the dazzling array of porcelain altars. According to the different porcelain colors, they are snow white, ivory white, onion root white, etc. [0003] Snow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/24C04B33/04C03C8/00C04B33/34C04B41/86
Inventor 李双展许建星彭照耀林志辉郑长龙卢迪榛邱建智
Owner 福建省德化县臻晖陶瓷有限公司
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