Introduction
Inkjet formulations contain pigment particles that destabilize over their shelf life,
leading to instability in forms of particle sedimentation and packing. Such events
can cause poor product performance and even the clogging of inkjet ports,
requiring instrument shutdown while the printing head is cleaned. While mixing
by jet head movement or manual shaking may re-distribute the sample to its
native state, predicting the instability in the first place is beneficial to avoid such
product failures in the future. Here, the Turbiscan is used in order to quantify and
predict the instability phenomena associated with various inkjet formulations.
