Quality of kaolin pure white degree is high, with soft and easy suspended in the water, good dispersion of plasticity and high bonding, excellent electrical insulating performance; Has a good fight acid soluble, very low cationic JiaoHuanLiang, better resistance to watery and physical and chemical properties. So kaolin has become a paper, ceramics, rubber, chemical industry, coating, medicine and defense, dozens of industry of mineral raw materials necessary. Kaolinite in paper industry used widely. There are two main areas, in a paper (or says the) used in the course packing, the other in a surface coating process of use paint.
Kaolin USES
Reports say, Japan and kaolinite used to replace the steel cutting tool, lathe bits and internal combustion engine application cases etc. Especially in recent years, the rapid development of modern science and technology, make the application field of kaolinite and more extensive, some high-tech fields began to use of kaolin as new material, even atomic reactor, the space shuttle and the space shuttle high temperature resistant porcelain parts, also use kaolin is made. At present, the total production is about 40 million tons of kaolinite (the data belongs to simple nations and the sum of production, not one of them, the volume of trade statistics undressed ore contains more repeated computation), of which the refined soil is approximately 23.5 million tons. Paper industry is refined kaolin the biggest spending departments, accounts for about 60% of total consumption kaolinite. According to a Canadian Temanex consulting company to provide the data, in 2000 the global paper and cardboard total production is about 319 million tons, global paper coatings with the total amount as kaolinite about 13.6 million tons. For general culture paper, packing of paper weight of 10-20%. For coated paper and paperboard (mainly including lightweight coated paper, paper and coated paper board), in addition to need packing outside, still need to paint, filled with kaolin pigment, the proportion of the paper for heavy 20-35%. Kaolin used in paper making, can give paper good cover performance and good coating luster performance, still can increase the white paper degrees and no, transparency, smoothness and printing eligibility, great improvement of the paper quality.
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