Bone China is a kind of ceramic, ceramic production raw materials are not lead, so the raw materials of bone China must be no problem. Bone China contains no lead in the key glaze process. The glaze of bone China is divided into three kinds: on glaze color, in glaze color and under glaze color. Different production processes, the difference is great. The general glaze is lead-containing, using glaze glaze color production of bone China, in which heavy metals, such as lead, chromium, etc., are deposited during the cooling process.
Regular manufacturers will invest a lot of financial resources to improve the production process, the use of special lead-discharge process, so that the lead in the glaze and other heavy metals as much as possible out, to ensure that the final lead content is not exceeded, will not harm the body.
However, some small and unknown manufacturers will certainly not invest a lot of money to improve the lead discharge process, so the bone China produced is excessive lead, which is harmful to the body.
The lead content of bone China produced by underglaze and midglaze is significantly lower, so now many large manufacturers have begun to use these two glazing methods. However, obviously, these two processes will increase the cost of production, so the general small manufacturers will not use this way.
In addition, there are also lead-free glazes, so that no matter what method of glazing is used, it will not be produced
Tangshan win-win ceramics is dinnerware, cup, water, tea, coffee and other products professional production and processing company, has a complete and scientific quality management system. Has been adhering to the “customer first, quality first, reputation first” purpose, and “quality is the life of the enterprise, culture is the enterprise brand” development concept, attaches great importance to the traditional ceramic culture inheritance and modern ceramic culture innovation combination.
Post time: Jul-19-2023