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Ceramic tableware refers to all artificial industrial products made from inorganic non-metallic minerals such as clay. It includes various products made of clay or mixtures containing clay by mixing, forming, and calcination.
Ceramic tableware, from the coarsest earthware to the finest fine ceramics and porcelain, fall within its scope. Its main raw materials are silicate minerals (such as clay, feldspar, quartz, etc.) taken from nature, so it belongs to the category of "silicate industry" with glass, cement, enamel, refractory and other industries. The firing and application of ceramic tableware has a long history in China, its shape is diverse, colorful, cool and smooth, easy to wash, deeply loved by the Chinese people. The production methods of ceramic tableware are divided into three types: overglaze color, underglaze color and glaze color. Glaze colored ceramics are made of pigment paper pasted on the glaze or directly painted on the surface of the product with pigment, and then baked at low temperature, because the baking temperature does not reach the degree of glaze melting, so the flower surface can not sink into the glaze. Touch the glaze colored ceramics with your hands, and feel that the flower surface has a clear sense of concave and convex; The baking temperature of the glaze ceramic can melt the glaze, the pigment can sink into the glaze, and after cooling, it is covered by the glaze layer, the surface of the product is smooth, and there is no obvious unevenness in the hand touch; All the underglaze colored ceramics are decorated on the porcelain blank, and after glazing, they are fired at a high temperature once, and the flower surface is covered by the glaze layer, which looks bright, flat and smooth.
For ceramic tableware containing food, attention should be paid to the decoration of the surface that comes into contact with the food.
●For ceramic tableware used to hold acidic foods, products with less surface decoration should be used as much as possible.
● Pay attention to whether the color of the pattern is bright, if it is not bright, it may be that the temperature does not meet the requirements when roasting the flowers, and the amount of lead and cadmium dissolution of such ceramic tableware products is often higher.
●Pay special attention to ceramic tableware that can be wiped off by hand, this product has a high amount of lead cadmium dissolution.
●For ceramic tableware that is not assured, you can soak it in vinegar for a few hours, and if you find that the color has changed significantly, you should discard it.
● When purchasing microwave oven products, avoid products with metal decoration, such as products with gold edges, silver edges or inlaid patterns with gold flower paper, metal wire, and metal wire.
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