The bone china cup is called bone china cup because most of its raw material is animal bone meal. In China, it was first called bone china, but later it was changed to bone china because of its unpleasant name, and it was widely spread. Bone China mugs are best made of bovine bone meal, and those containing more than 25% bone powder can be called bone china cups, and those with less than 25% bone powder content are low-bone china cups, and they are not considered real bone china cup products. Between 45%-51%, it is a high-quality bone china cup.
The uses of bone meal in bone china mugs are enormous. The content of bone powder in bone china cups is different, and the bone china cups produced are also different, and bone powder can not be added as much as you want, but should be operated according to the ratio. The more bone meal content, the more difficult it is to fire, and the easier it is to burst during firing. This garbage rate is also the reason why bone china cups are relatively expensive.
Bone powder is the main raw material of bone china cup products, and bone powder is very important in the manufacturing process of bone china cups. As we all know, there is a world of difference between porcelain without bone meal and porcelain with bone meal. The quality of bone powder is also very important, which will affect the quality of bone china cups and their luster, transparency and firmness, and even have different requirements for firing temperature. Generally, the bone meal of herbivores such as cattle, sheep and pigs is the authentic bone china cup bone meal. These bone powder must be steamed and degreased, then air-dried, calcined, and ground before they can be used for the raw material ratio of bone china cups.
So, is it better to add bone-like powder to the raw material ratio of bone china cups? Britain is the origin of bone china cups. Their craftsmen believe that the bones of 2-4 year old calves are the best raw materials for bone powder. Through experiments, they found that during the firing process of beef bone powder, a higher temperature (about 1220 degrees Celsius) is required, followed by the temperature required by pig bone powder, and the temperature required for sheep bone powder is very low. Moreover, bone china cups fired from bovine bone meal are better than bone china cups fired from pig bone meal and sheep bone meal in terms of luster, transparency or hardness. Bone china cups with 45%~51% bovine bone powder are undoubtedly high-quality bone china cups.
Post time: May-29-2023