Ultra-fast determination of ink stability

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.