In previous blogs, we discussed the “what” and “why” of viscometers — what they are and why they are useful in measuring ink viscosity. In this blog, we will be going over the “how” — that is, how different process

For this exercise, we are using the Zahn cup as an example. To determine the viscosity of a liquid, dip and fill the viscosity cup with ink or coating. After lifting the cup out of the fluid, the user measures

In the previous article we discussed non-Newtonian fluids and how they perform when measured with efflux cups. Efflux cups are employed in most applications as a benchmark measurement for the fluid in process; they are by no means accurate. Why,

In my recent travels I have encountered a trend that affects inks and coatings resulting in problems that appear to be viscosity-related, when, in fact, they are caused by mixing issues. The non-Newtonian and thixotropic properties of inks and coatings