Evaluation of Concentration of Coarse Particles in Paints - Foreign Matter Detection Using Dynamic Image Analysis -

User Benefits

- Foreign matter detection with little oversight using telecentric optical system. - High concentration samples can be measured at undiluted solutions/low dilution rates using micro cell. - Low consumption of samples and rinsing

Introduction

Coarse particles or aggregates of primary particles in paints (e.g., inks) can cause problems, such as clogging of the flow path of printing equipment, coating deterioration, and uneven coating. The Shimadzu iSpect^TM DIA-10 dynamic particle image analysis system, which is based on the dynamic image analysis method, is an instrument which acquires images of particles in liquid samples and measures the particle size distribution, concentration, and shape. It is possible to analyze tens of thousands of particles and to detect small amounts of coarse particles or aggregates in only minutes with this optical system, which misses very few particles and has an image acquisition efficiency of 90 % or higher. In addition, the microcell method enables high concentrations and high turbidity samples to be measured without dilution or at low dilution rates, which reduces the effect of diluting samples. This article introduces an example in which the concentration of coarse particles in inks was evaluated without dilution or at a low dilution rate by using the iSpect DIA -10.

October 30, 2025 GMT