Advances in Materials Science and Engineering / 2016 / Article / Tab 1

Research Article

Effects of Single and Blended Coating Pigments on the Inkjet Image Quality of Dye Sublimation Transfer Printed Paper: SiO2, CaCO3, Talc, and Sericite

Table 1

Physical properties of the 4 pigments investigated [12, 13].

ItemSilicaGCC, H90TalcSericite

Main ingredientsCaCO3 98.3%SiO2 54%
Al2O3 31%
K2O 7%
Crystalline structureTetragonalRhombic MonoclinicMonoclinic
External appearancePlatySphericalPlatyPlaty
Specific surface area (m2/g)>100149~2057
Hardness (Mohs)2.2~2.63.2~3.51.0~1.52.2~2.4
Range of particle size (µm)0.01~0.100.1~ 4.00.25~5.00.8~45.0
Average particle size (µm)0.090.39~0.411.2~1.510.0~14.0
Specific gravity3.422.672.72.6~2.7
Refractive index1.551.561.571.59~1.62
Reflectance (%, at 457 nm)959770
Brightness (% ISO)85~9593~9673~8065~75
pH8~118.8~9.64~57~9
Aspect ratio130~40
CEC (meq/100 g)−15.75.0
PCD (meq/g)−1.972.5−48.4

GCC: ground calcium carbonate; CEC: cation-exchange capacity; PCD: particle charge detector.

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