Ceramic tableware knowledge is introduced

Traditional concepts of ceramic tableware, ceramic refers to all inorganic non-metallic minerals such as clay as raw material of artificial industrial products. It includes by clay or containing a mixture of clay by mixing, shaping, calcination and made all sorts of products. By the coarse soil opener to the fine fine pottery and porcelain belong to it. For it is the main raw material of silicate minerals in nature ( Such as clay, feldspar, quartz, etc. ) , therefore, cement and glass, enamel, refractories and other industrial, and belongs to the category of 'silicate industry'. Tableware of pottery and porcelain firing and application in our country has a long history, its modelling diversity, colorful, feel cool and refreshing and smooth, easy to wash, loved by people. The method of making the ceramic tableware is divided into glaze color, under the glaze color, glair on three. On colored glaze ceramic made color paper on the glaze or paint to paint directly on the product surface, then through low temperature bake to burn and become, because the baking temperature can not reach the extent of the glaze layer of molten, so flower surface can't sink in the glaze. Touch on color ceramic glaze, the feeling flower surface has obvious AoTuGan; Glair pottery and porcelain of the baking temperature can make glaze melt, pigment can sink into the glaze, covered by the glaze layer after cooling, surface smooth, no obvious AoTuGan hand touch; All under glaze color porcelain enamel in the porcelain on the billet, glazing after the high temperature firing, flower surface is covered by the glaze layer, look bright, smooth, feel is smooth. Ceramic tableware level generally divided into: 1st, the entire product without any defects, deformation or color, allowing a pinhole in an inconspicuous area; Level 2: you can have 2 - 3 a pinhole, not clear off color, the slight deformation Level 3 ( Close to the lemon) : color allow 1 - mild distortion 2 in 1 square MM shrinkage glaze. Choose ceramic tableware to note: 1, the ceramic tableware, for holding food and food contact surfaces should be paid attention to. 2, used for holding the acidic food ceramic tableware, should try to choose decorative pattern is less the surface of the products. 3, pay attention to the design color is light, if not light, may be baking temperature when the flowers do not meet the requirements, this kind of ceramic tableware products the dissolubility of lead, cadmium is often high. 4, pay special attention to those by hand can be wiped the ceramic tableware design, this product high dissolubility lead and cadmium. 5, to not be at ease of ceramic tableware, usable vinegar soak for a few hours, if found abandoned in the color should have obvious change. 6, microwave oven with products of choose and buy, should avoid to have metal decoration products, such as with gold, silver or with * * * * paper Mosaic, metal wire, wire products. Source: website administrator