china is a type of porcelain body in which calcined ox bone (bone ash)
is a major constituent.
characterised by high whiteness, translucency and strength.
stronger than hard-paste porcelain and easier to manufacture.
ivory white appearance is created by adding bone ash to the ingredients
for hard-paste porcelain.
china is the toughest of porcelains and does indeed contain bones. Bone
ash makes up the greatest part of the formula for bone china, with the
balance of the formula containing kaolin and petuntse.
Strength is provided by the fusion of body ingredients during firing.
This unique English pottery body is made from the following: 50% animal
bone, 25% china clay, 25% china stone. First or biscuit firing 1200 C -
1300 C. Second or glost firing 1050 C - 1100 C.
bone china involves several steps. The clays and bone ash must be mixed
together with water, then the slurry is formed into large cylinders that
are sliced and formed with plaster molds into dishes, bowls, cups and
other pieces. The pieces are taken from the molds, given a rough
cleaning to remove the excess clay and any lumps or other imperfections,
then fired in a kiln at about 2,300° Fahrenheit (1,260° Celsius).
being fired, the pieces are polished, re-heated, glazed, then fired
again to set the glaze. Glazed pieces are then decorated, either by a
machine or by hand. They are then re-fired to set the decorations and
inspected. Imperfect pieces may be destroyed or sold as "seconds." The
pieces are then packaged and sent to retail stores.
Creating bone china entails an involved series of steps carried out by a
number of highly skilled individuals and some really impressive
are four main processes involved in creating china: Clay making, Mold
making, Glazing, Decorating.
china comes in a variety of designs, so the homeowner has an array of
choices. Almost every decor imaginable is applied to bone china. Some
designs may include flowers, fruit, geometric designs, lacy swirls,
animals, or even holiday motifs.
homeowners purchase bone china deliberately to match with their kitchen
or dining room décor, while some prefer the classic look of the plain
white piece with a ring of gold or platinum at the edge.
new bone china is about 25 percent more expensive than the ordinary
porcelain made here while depending on the market the new product could
be 25 to 30 percent cheaper than genuine bone china.
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