The secret of distinguishing the glaze color of bone china cup

The beautiful appearance patterns of bone china cup products are all glaze, and the method of glazing determines the safety of bone china cup products. Glaze is divided into on-glaze color, in-glaze color and under-glaze color, among which only on-glaze color is relatively unsafe.

 The method of distinguishing is very simple. Those with a smooth surface like glass are in-glaze and under-glaze colored bone china with little or no leaching of lead and cadmium. We should try to choose products with less decorative patterns on the surface. Secondly, if the overglaze color ceramics are touched by hand, the surface of the product has a bumpy feeling, and the roughness is observed with the naked eye; the underglaze color ceramics and underglaze color ceramics touch the surface of the product by hand, and they are smooth like glass, without the feeling of unevenness. Among them, most of the in-glaze and under-glaze colored porcelain can be purchased with confidence; and if inferior pigments are used in the processing of over-glazed colored porcelain, it is easy to cause excessive lead and cadmium dissolution. If you buy a product that you are worried about, you can soak it in vinegar for a few hours. If you find that the color has changed significantly, you should discard it. In addition, the raw material soil for firing bone china cups contains different minerals due to different origins, and soil with high content of silicon and mercury is not suitable for firing bone china products.

Tangshan Win-Win Ceramics is a company specializing in the production and processing of bone china dinnerware, ceramic water cups, bone china tea sets, bone china coffee cups, bone china advertising cups, bone china gift cups, conference cups and other products. It has a complete and scientific quality management system. Always adhering to the tenet of “customer first, quality first, reputation first” and the development concept of “quality is the life of the enterprise, culture is the brand of the enterprise”, it pays great attention to the innovative combination of traditional ceramic culture inheritance and modern ceramic culture.

 

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Post time: Oct-18-2022

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