Pigments & Inks

Pigments & Inks

Basically, inks are suspensions containing pigments as disperse and liquids as the continuous phase. One of the challenges is to stabilize these suspensions. The most important parameters regarding stability are the viscosity of the liquid and particle size distribution of pigments. Additionally, surface-active additives are used which could be characterized via zeta potential experiments.

Methods for pigments and inks

ANALYSYS METHODPARAMETERMEASURING INSTRUMENT
Multiple light scatteringLong term stabilityContract analysis
Laser diffraction (wet or dry)Particle size of powdersBettersizer S3 series
Bettersizer 2600
Bettersizer ST
Image analysisParticle shapeBeVision D2
Bettersizer S3 Plus
DLS – dynamic light scattering (Photon correlation)Particle size in nanometer rangesBeNano series
Electro acousticZeta potentialDT-1202
DT-310
DT-300
Acoustic spectrometryParticle size in micrometer and nanometer ranges in concentrated dispersionsDT-1202
DT-100
Gas adsorptionBET-surface area and pore analysis3P micro series
3P meso series
3P sync series
3P surface DX
Gas pycnometriyDensity3P densi series
Tap volumetryTap densityBeDensi T series
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