Bone China tableware why so expensive

Bone China tableware why so expensive? Bone China is the royal porcelain tableware, because of special material, good penetrability, frivolous, so looks glittering and translucent get rid of bone China, feel and look nice. A lot of people are interested in bone China tableware, but after seeing the price yet, so why is so expensive, bone China tableware to buy bone porcelain tableware how should choose? Another small make up to tell you. Bone China raw materials for animal bone coal, clay, feldspar and quartz as the basic raw material. Commonly used is the skeleton of cattle, sheep, pigs and other animals. British people think, 2 - 4, the mavs good bone as bone porcelain, sheep bone plasticity is good, easy to shape but whiteness than cattle bone, bone is a good raw material, sheep bone times, pig bone is poor. Bone China all choose cattle bone meal as raw material, and content are over 30%, its colour and lustre is light, a jade. Technology has a good raw material, the more need good technology, or it will dissipate. When the bone content reaches the corresponding proportion, the quality of porcelain will greatly improve, this is mainly embodied in the vessels of gloss and moist degree. But if the content is more than the corresponding proportion, the composition of clay is relatively lower, porcelain will become too soft, the more easily melt in the production process, need higher on the forming technology, is harder to fire, so more precious. Fire: ( 1) After forming the bone China with 1250 ℃ high temperature burning, the association association due to bone porcelain shrinkage rate in the process of burning is very large, so the kiln after finished product will shrink by 20% ( General porcelain shrinkage 7%) , so easy to shape deformation, plate, bowl, etc shall be in fixed quantico bowl above to burn culture for a long time. ( 2) Then the bending shape and size of the inspection, after the grinding surface to spray on glaze, kiln glaze to burn for 1150 ℃. Color: the general coloring method, was put on transfer paper is finished in white material, with 820 ℃ fire and become. Bone China are colored by hand, more vivid image texture. Healthy environmental protection bone China not only has beautiful appearance, but also relatively ordinary porcelain is beneficial to people healthy. Porcelain items in daily use inevitably will be affected by acid and alkali corrosion and trace metals overflow, accumulate over a long period will affect human health. And bone China contains no lead, cadmium, glair, under the glaze color overflow, bone China not only lead, cadmium and flower surface wear, fall off not easily, except for the use of general tableware, also suitable for the microwave oven, green health ceramics is worthy. Want to know whether can bone porcelain, bone China for the first light to observe the permeability of bone China, and then with the hand feeling of porcelain handle, see if the delicate and hard, reoccupy finger play a play to hear voices, see if you can hear the bone China & other; Ding & throughout; A soup. Bone China & ndash; — Bone China tableware custom manufacturer, welcome everybody to choose.