Ceramic pigments are inorganic salts, that is, metal compounds. The formation of its color is mainly due to the fact that its composition contains colorable metal elements, and it will finally be colored after being roasted at hundreds or more than a thousand degrees. Since the metal elements that can be colored after high temperature are limited, the types of ceramic pigments are also limited.
According to the conditions of use, ceramic pigments can be divided into high-temperature and low-temperature pigments. High-temperature pigments refer to stable color development when the use temperature is 1000-1500°C, and are mostly used for glazes and blanks; At 850°C, its color is stable, and it is used on glaze. It is mostly used for screen printing decals and artistic porcelain painting. Its color types are slightly more than high-temperature pigments. Pigments with different temperatures cannot be matched with each other for color matching, and the color matching of ceramic pigments containing different metal elements is also subject to certain restrictions.
Ceramic pigments are inorganic pigments, but they are completely different from the manufacturing methods of inorganic pigments widely used in paint, painting, ink, plastic, rubber, fiber, paper, building materials, leather, etc. Ceramic pigments must have high heat resistance and Stability to glaze. The so-called stability to glaze does not mean that it will not decompose at all for any type of glaze. Various pigments have different degrees of difference in adaptability to different types of glaze. What type of glaze The most suitable, often varies with the pigment. Therefore, when studying the pigment, it is necessary to study the glaze composition that is suitable for the stability and color tone of the pigment.