Longquan celadon crackle glaze wine bottle and preparation method thereof

Abstract

The invention relates to a longquan celadon crackle glaze wine bottle and a preparation method thereof. Raw material proportions of a blank material, an internal glaze and an external glaze of the bottle are respectively described as follows: the blank material comprises: 40-55% of Longyan kaolin, 15-25% of Longquan china clay, 8-20% of potassium feldspar, 7-15% of quartz and 5-10% of zijin clay; the internal glaze comprises: 65-70% of glaze fruit, 12-25% of glaze ash and 5-10% of zijin clay; and the external glaze comprises: 60-70% of potassium feldspar, 8-15% of quartz, 8-13% of Longyan kaolin, 8-15% of glaze ash, 5-13% of zijin clay and 0.2-0.4% of Fe2O3. On the basis of above raw materials, the longquan celadon crackle glaze wine bottle is prepared by following steps: preparing slurry, performing an injection moulding process to obtain a wet blank; performing a drying process, a trimming process and a biscuiting process to complete a blank manufacturing process; and finally applying the internal glaze and the external glaze and performing a glazing firing process to obtain a finished product of the longquan celadon crackle glaze wine bottle. The bottle is free of stripes on the internal glaze. The external glaze is decorated through crackles. The bottle is good in quality and is free of internal leakage of wine. The method is low in cost and good in effect.

Description

technical field [0001] The invention belongs to the field of porcelain, and relates to a Longquan celadon cracked-glazed wine bottle, a body and a glaze preparation method and a manufacturing process of the wine bottle. Background technique [0002] Since ancient times, there have been two completely different decoration methods for the glazed surface of Longquan celadon. First, the glaze has no grain, and the glaze color is mainly pink green and plum green, commonly known as "di kiln". Second, the glaze is cracked as the main decoration. The effect, commonly known as "Ge Kiln", was one of the five famous kilns in the Song Dynasty. In recent years, the production scale of Longquan celadon has gradually expanded, and many technicians have carried out more research on cracked glazes, and have achieved certain results. For example, the national patent office patent number is CN200810030924's invention patent "a method for making cracked glaze for medium-temperature daily-use c...

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Problems solved by technology

For example, the national patent office patent number is CN200810030924's invention patent "a method for making cracked glaze for medium-temperature daily-use ceramics", which introduces lithium-containing raw materials such as spodumene to burn medium-temperature daily-use ceramic crackle glazes, but the glaze has a relatively high processing cost. Wine bottle glaze has certain limitations; another example is the invention patent of CN200910103531 "a kind of crack glaze ceramic wine bottle manufacturing process", which heats the porcelain body to 40 degrees Celsius in an oven and then applies crack glaze. It is fired at 50-150°C lower than the firing temperature. Although this method can achieve the method of no cracks in the inner glaze of the wine bottle and the decoration of outer glaze cracks, it is extremely difficult to control the thickness of the glaze layer when firing cracked glazed wine bottles with this method. It is easy to produce glaze defects such as glaze shrinkage, pinholes, and air bubbles, which has limitations

[0003] At present, in the field of Longquan celadon production, there are cracks inside and outside the wine bottle with cracked glaze. In the case of long-term storage of wine, the liquid will penetrate into the carcass through the cracks in the inner glaze wall, causing the carcass to absorb moisture and expand. When the tensile coefficient of the surface is increased, the tire wall will crack, which will eventually lead to wine seepage

It can be seen that the cracked glazed wine bottles made in general cannot meet the specific requirements of long-term wine storage.

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