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 METHOD PARAMETER MEASURING INSTRUMENT
Multiple light scattering Long term stability Contract analysis
Laser diffraction (wet or dry) Particle size of powders Bettersizer S3 series
Bettersizer 2600
Bettersizer ST
Image analysis Particle shape BeVision D2
Bettersizer S3 Plus
DLS – dynamic light scattering (Photon correlation) Particle size in nanometer ranges BeNano series
Electro acoustic Zeta potential DT-1202
DT-310
DT-300
Acoustic spectrometry Particle size in micrometer and nanometer ranges in concentrated dispersions DT-1202
DT-100
Gas adsorption BET-surface area and pore analysis 3P micro series
3P meso series
3P sync series
3P surface DX
Gas pycnometriy Density 3P densi series
Tap volumetry Tap density BeDensi T series
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