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【Products】Super-fine calcined kaolin(3000-mesh)
 
【Product detail】

Yuanjiang Brand - ultra-fine calcined kaolin 3000 mesh are widely used in papermaking industry, there are two main areas, one is used as a filler in papermaking process, 2 it is used as a pigment in the surface coating process.As a pigment, kaolin can not only give good covering properties and coated paper burnish performance, also can increase the paper whiteness, opacity, smoothness, and printing eligibility, greatly improve the quality of the paper.

Kaolin filler can take the place of some more expensive materials, effectively reduce the production cost at the same time, the guarantee does not affect the final product properties.For general cultural paper, packing volume accounts for 10-20% of paper weight.For coated paper and cardboard (mainly include lightweight coated paper, coated paper and coated paper board), in addition to the need to packing, you also need to paint, fillers with kaolin proportion for paper weight of 20-35%.

1. Main properties and features

 

Chemical substances kaoin / calcined -coatings grade
Appearance white powder
Packing 25kg woven bag/ kraft paper bag, 1000kg sack
Main features Good fineness, high whiteness, high hiding power, high Glossiness
Range of application Used in various medium- to high-grade coatings.

 

2. Quality Index

 

NO. Item Unit Physical Index
YJ-A YJ-B
1 Whiteness % ≥93 ≥92
2 325-mesh Residue on sieve% % £¼0.004 ≤0.004
3 refractive index % 1.62 1.62
4 Water content % £¼0.5 £¼0.5
5 pH-value of aqueous suspension   6.5-7.2 6¡«8
6 Oil absorption(depend on different fineness) %g/100g 45±5 43±5
7 £¼2um content % 80±2 78±2

 

Chemical Index

 

 

SiO2(%) Al2O3(%) Fe2O3(%) TiO2(%) CaO(%) MgO(%) K2O(%) Na2O(%) L.O.L(%)
50±2 45±2 £¼0.5 £¼1.1 £¼0.3 £¼0.2 £¼0.06 £¼0.2 0.5





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