Red is a very special color. Let's not say that our blood is red. If you look at the color around you, you know that the three primary colors of red, yellow and blue are the basic composition of life. For ceramic pigments, blue is the opposite. It is said to be a colorant variety that is relatively easy to develop. Common blues are vanadium zirconium blue, cobalt blue, peacock blue, and sapphire blue. Their structural types are zircon, spinel and spinel respectively; yellow ceramic pigments are relatively In terms of products, there are mainly orange, pure yellow of titanium series; golden and brown yellow of iron-chromium-zinc-aluminum series. Zircon structure of yellow, wrapped yellow and so on.
Ceramic pigments are roughly divided into two types according to the use of the glaze and the blank. Most of the glaze pigments have color development in the green body, but the green color is not necessarily in the glaze. There is hair color. The red ceramic glaze coloring materials mainly include: zirconium iron red, wrapped red, round red, manganese red, etc., among which zirconium iron red and wrapped red are zircon structure types, which are better in both the green body and the glaze. Hair color, especially wrapped red hair color, high redness value, although the price is higher, but generally applied in glass mosaic, glazed porcelain and art porcelain; zirconium iron due to relatively low price, but also It is combined with other zirconium pigments to color other rich color ranges and better high temperature performance. It is widely used in matt glazes and ceramics.
Yuanzihong is also called tin peach red, which belongs to the structure of tin bismuth. It is mainly made of chromium oxide, tin oxide and calcium oxide. The formula of this product is highly confidential, the production process is complicated, the selection of raw materials and the process are very particular. Produced better in Chaozhou, Guangdong. It has been said that after Chaozhou manufacturers set up factories in Foshan, they prepared raw materials and the same raw materials and processes according to the original formula. However, after coming to Foshan, they could not burn the original effect. It is also said that the production water is also very particular. The other is the introduction of calcium oxide in the formula. In principle, it is nothing more than calcium bicarbonate or calcium oxide. However, the Chaozhou area is said to be crushed by raw shells, and then melted with tin oxide in a large pot. It is both original and mysterious. The round red color extends from the pink to the deep purple color range according to the content of chromium oxide and calcium oxide in the formula. At present, Yuanzihong products have also been used in the production of ceramic pink ink, and glazed tiles are also used by large users.
Manganese peach red is not very good at high temperature due to the presence of manganese carbonate, and it is easy to cause pinholes in the ceramic sheet due to the presence of unreacted manganese carbonate. Therefore, the manganese glaze for glaze is basically Used in matte antique brick products.
The red ceramic pigment products for the green body mainly include: aluminum-iron structure coral red, ferrosilicon red, lanthanum aluminum red, manganese red and the like. The development of aluminum-iron red can be said to be a miracle, because this variety is said to have been accidentally developed in an accidental experiment. It is also said that the aluminum oxide was mistakenly used as a chemical zirconia into the ball during the preparation of raw materials. The emergence of miracles. Of course, the above statements are all legends on the rivers and lakes, but the first technical counterpart to make coral red products is still very admired by the authors who are also technicians.
Ferrosilicon red is mainly made of white carbon black and iron oxide red calcined, the color is more vivid than aluminum iron red, the powder color is stronger, the natural product is France 510B ferite. Since the price of silica is several times higher than that of alumina, the current market is basically using low-cost aluminum-iron-red products.
Manganese red products belong to the corundum type, and the high temperature resistance in the green body is generally high. Because of the low price of the raw materials of alumina and manganese carbonate, it is also a kind of pink ceramic green body color which is relatively inexpensive. At present, manganese red products are rarely used in the market, and its market share is more objective before and after 2004. Due to the decrease in demand, there are currently few manufacturers of color materials, which are basically monopolized by one or two color materials enterprises.
Trimethyloxonium Tetrafluoroborate,Trimethyloxonium Tetrafluoroborate 420-37-1,Trimethyloxonium Tetrafluoroborate Cas 420-37-1,Tin Ionic Liquids
HENAN BON INDUSTRIAL CO.,LTD , https://www.bonchemical.com