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. For the industrial application of inks it is very important to know the viscosity at the condition right on the nozzle of the printing head at very high shear rates (up to 50,000 1/sec). Finally yet importantly, the drying behavior on different substrates can be of high interest for the control of ink quality.

Methods for pigments and inks

ANALYSYS METHOD PARAMETER MEASURING INSTRUMENT
Optical Microfluidic Dynamic viscosity FLUIDICAM Rheo
TURBISCAN principle Multiple light scattering Long term stability TURBISCAN Lab
TURBISCAN TOWER
TURBISCAN AGS
Mikro rheology with MS-DWS Rheological properties RHEOLASER Coating
Film formation MS-DWS Drying behaviour RHEOLASER Coating
Laser diffraction (wet or dry) Particle size of powder Bettersizer S3 Plus
Bettersizer S3
Bettersizer 2600
Bettersizer ST
Image analysis Particle shape BeVision D2
Bettersizer S3 Plus
DLS – dynamic light scattering

(Photon correlation)

Particle size in nanometer ranges Nanoptic 90
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 100
Tap volumetry Tap density BeDensi T series
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