Jian Zhan his mystery

Jian Zhan 's craftsmanship is characterized in extraordinary, unpredictable glaze colors: Wujin glaze, rabbit hair glaze, oil drop glaze, partridge feather glaze, yao bian etc.

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Le mystère de Jian Zhan | Théières à la folie

Summary :

On does not say a bowl or a teapot Jian Zhan, on dit « un Jian Zhan». Jian Zhan (Tian Mu porcelain) dates from the time of the Tang Dynasty, at the beginning of the 5 Dynasties. It was one of the 8 most famous porcelains, this one black, during the Song Dynasty, in China. The craftsmanship of Jian Zhan is characterized in extraordinary colors of the glaze, unpredictable: The Wujin glaze, the rabbit hair glaze, the glaze in a drop of oil, partridge feather glaze, yao bian etc...Apparently the bowl is the main element that illustrates Jian Zhan, the teapot follows. Jian Zhan almost gradually disappeared during the Yuan Dynasty. It was in 1981 that experts from several institutions such as the Central Academy of Arts and Crafts, the former Fujian Institute of Light Industry and the former Porcelain Factory Jian YThe, have worked, researched, experienced to get out Jian Zhan oblivion, for 600 years. The restoration is a success. It would seem that the materials needed to perform such marvels can only be found in the Jian Zhang region, hence the Jian Zhan 
- Selection of a clay with a high iron content, the glaze too.
- Crushing, the clay as well as the glaze pulverized in a machine.
- Washing and sifting clay and glaze which will be placed respectively in a mud basin and in a glaze tank.
- Storing the clay in a place sheltered from the sun and the air, keeping it at a certain temperature and a certain humidity, for some time: This results in “Chen Finwhich is the beginning of the ceramic process.
- Kneading the clay to eliminate as much air and impurities as possible, to standardize the humidity, to make it denser and to avoid drying out which would cause cracks.
- Shaping is by hand but also by machine.
- Modification, it is done with a knife.
- Baking Jian Zhan unglazed. It is at this time that the most fragile and cracked are eliminated.
- Mix the glaze, “the old way” using a natural glaze made from iron ore and vegetable ash. Simple materials that will create the most mysterious crystals. This alliance composes unexpected, magnificent and striking glazes.
- Glaze is an art, a skilful technique so that the icing is not too thin to leave space for the crystal to develop, not too thick to prevent it from sticking to the bottom.
- Bake and cook Jian Zhan. Great vigilance is required here, in terms of time, temperature, reduction duration control. All this will influence the result of the glaze.
- Finishing oven, there will be eliminated the defective products.
It is claimed that the glaze of Jian Zhan containing silica, alumina, ferric oxide and calcium oxide, releasing iron ions, would absorb the chloride ions present in the water. These ions can therefore be absorbed by the human body and be a factor in the transport of hemoglobin and red blood cells. Which would mean that drinking tea with Jian Zhan would prevent anemia, high blood pressure and have a soothing effect. This would also act on the endocrine system and a sterilizing effect would be obtained. Jian Zhan would prevent the degradation of tea left in its container for a long time. So much for JIAN ZHAN.

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