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HISTORY
Known since ancient times in the Far East, located in China
the production center of more 'high artistic level over the
4 millennia prior to its introduction in the West.
Its development originates in the era Yin (1300 - 1028 BC) by
a plate of thin thickness with curves that worked
lathe and the typical glossy black, since the carbon
Content from mixing, and then increase its diffusion in
later times, with the discovery of the genera "CELADON"
(today BONE CHINA) "HSING - HAO" (white porcelain) and "THE CELADON
NORD "from the typical olive green. Through the centuries, the decorations
become the most 'sought; so, during the dynasty YUAN (1280
- 1368 A.D. ), With the import of the cobalt from Persia, born
the usually white and blue. This type of decoration, it reaches its
Summit refinement under the Ming dynasty (1368 - 1644) that
from 'origin prior to the genus "TOU TSAI" in polychrome enamels, most
Later decorations in gold leaf.
Reached the pinnacle of perfection and greatness, whether it comes from
aspiration in large-scale export of Chinese product
in the world, at the expense of quality. This results in the collapse of the
Oriental myth and the end of the great Empire Celeste, who recently
little lapses.
In conjunction with the Eastern crisis, born in 1709 in Dresden
the first European porcelain. We owe this invention to Prince
Frederick Augustus of Saxony, art lover and porcelain
Chinese, who, like many other European monarchs, wanted
tear to the Chinese secret of hard porcelain. We succeeded '
thanks alchemist JOHAN FRIEDRICH Boettger, who took refuge in
Saxony in 1701 after escaping to King Frederick William of
Prussia.
The discovery itself was, however, a fact totally random.
In fact, if you already 'in 1708 Boettger had obtained the first results
with a dough tough, type stoneware, dark red, dwell '
one day his attention to a powder of fine powder that
She was looking for her wig. The other fine powder
It was not that pure kaolin, which existed near a
big stock. And so, 28 March 1709 Boettger presented
the Chancery Court of the first hard porcelain manufactured in
Europe, which later became the now famous Meissen porcelain.
NUTURE OF PORCELAIN
Porcelain belongs to the large group of ceramics, which includes
all that is manufactured using a raw material to Content
clay.
Its basic components are the CAOLINO, sedimentary rock
crumbly white, on which depends the purity of porcelain
and then the real quality 'of the finished product, the QUARTZ, which gives
the hardness, and the FELDSPAR present in about 60% of the minerals
Earth's crust, which compactness and uniformity in all
the dough.
FEATURES
PORCELAIN
For everyday use we make porcelain, features
the most interesting are three:
1) hardness: equal eighth grade on the Mohs scale, can 'scratch
many materials, and, despite its apparent fragility 'is
tougher than a normal steel.
2) transparency: or, more precisely, the translucency,
which allows us, especially in the finest pottery,
to see the light through
3) Resistance to aging: the porcelain remains unchanged
despite the passage of time, subject to the conditions
of care in the preservation of the product.
PROCESS
MANUFACTURING PORCELAIN
1) mixing of kaolin 50% - 25% feldspar - quartz 25%
2) grinding elements
3) kneading with water and subsequent formation of the mass (fluid
or solid)
4) Forged mass to shape (forging casting
or lathe)
5) first firing at 800 to 900 degrees C.
6) it follows the so-called cookie
7) showcase (enamel)
8) second firing at 1300 - 1500 degrees C.
9) in the case of decorated china, the decoration can be
done under glaze (ie on the biscuit) or above enamel
(Ie in the window). In the second case the color is
much more delicate for use and deteriorates more easily.
- TPM -
Technology Porcelain Mediterranee
Locality Foce - 66010 Rapino (CH)
Italy |