Bone China gen 3
The Evolutionary History of Bone China
First Generation Bone China: Lead-containing Glaze (1973–2004)
Second Generation Bone China: Awareness of the Hazards of Lead, Technological Innovation Enters the Lead-Free Era (2005–2022)
The third-generation bone china: Born in Huairun in 2022, it began mass production in 2023. Building on a lead-free glaze, it is further endowed with functional features—easy to clean, antibacterial, and acid-alkali resistant.
Core Products and Technological Advantages
relies on silicon oxide, aluminum oxide, and calcium oxide, among which the higher the content of calcium oxide, the better the color. In nature, there are not many sources of calcium oxide, so animal bone powder is chosen as the source of calcium oxide. made from the ashes of herbivorous animals (mainly Ca3 (PO4) 2), mixed with high-quality kaolin, quartz and other auxiliary materials, and glazed at 1280 ℃
fine-bone-porcelain 25
Ceramics containing 25% bone powder in the raw materials can be called bone china. Internationally recognized bone powder content should be above 40%, and the best quality bone china generally contains 45% high-quality cow bone powder. Among them, bone powder accounts for more than 40%
Application
Secondary firing, complex process, only produced in the UK, China, Japan, Germany, Russia, and Thailand. Bone china is lightweight, fine, and hard (twice that of everyday porcelain), not easily worn or broken, and can withstand heat exchange in water at 180 ℃ and 20 ℃ without cracking. Its water absorption rate is less than 0.003%.
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