Ceramic pigment is the same as ceramic glaze, which is the coat for building and sanitary ceramics products. It is closely integrated into the carcass and glaze of ceramic products, which plays a role of decorating and beautifying the building and sanitary ceramics products, allowing the products to form a colorful ceramic world. The development of the ceramics industry is now entering a novel era of color glazes, the decoration of building and sanitary ceramics products more and more tend to directly use various color ceramic glazes to build an array of new product lines, to meet the different needs of the domestic and foreign markets. Therefore, proficiency use of the good ceramic glaze pigment technology has a very important significance in improving product quality, rich product varieties of the enterprise.
Requirement for colorants and pigments used by different ceramic products
Among ceramic manufacturers, a variety of colorants and pigments used by different ceramic products should be able to meet the requirements of the actual production process, which can form the desired decorative effect and improve product quality. The ceramic pigment and ceramic colors used by the building and sanitary ceramics products is richer compared to daily use ceramics. The decoration of building and sanitary ceramics products has been divided into the glaze color, over-glazed color, under-glazed color, colored glaze and color engobe aspects in enamel methods. Although the pigment has a lot of decorative techniques, but their use of effects and select range have advantages and disadvantages, so you should strictly select in use.
Different ceramic pigment and paint have different firing range
In actual use, a variety of ceramic pigment and paint have different firing range, which will give adverse impact to the fineness if the temperature is too high and too low. Some pigment firing range is very wide, such as chrome-tin pink and the blue sea, which can be used for high-temperature under-glaze color firing and can use low-temperature firing glaze color, and their fineness effects are good. Some pigment fineness is fixed, there are many taboos when you use, such as antimony acid lead pigment, it can only be used for decorative glaze color and low-temperature colored glaze products, if it exceeds the temperature, then it will lose the color. In addition to the firing temperature, there are quite a lot of pigment and paint which are very sensitive to the flames atmosphere in firing kiln, such as copper oxide pigments, which is green at oxidizing, and it is red color when the flame is restored, whose flame change is very large.
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