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Grace BaekJanuary 23, 20242 min read

Critical Role of High Shear Viscosity Measurements in Ink Quality

In the world of printing ink formulation, high shear viscosity measurements is significant. Measuring accurate viscosity of your ink samples can help determine the quality, performance, and reliability of inks, impacting everything from print clarity to production efficiency. In this blog post, we delve into why measuring high shear viscosity is crucial for ink manufacturers and end-users alike, and how it shapes the ink industry.

1. Optimal Print Quality and Performance

High shear viscosity is a key factor in defining how ink behaves under the rapid and intense conditions of the printing process. In high-speed printing, inks are subjected to significant shear forces. If the viscosity is too low, it can lead to issues like ink splattering and poor image resolution. If it's too high, it can cause problems in ink transfer, leading to incomplete or patchy prints. By accurately measuring and controlling high shear viscosity, manufacturers can ensure that their inks perform optimally under these demanding conditions, resulting in crisp, clear, and consistent prints.

2. Enhancing Production Efficiency

Inks with appropriately tailored viscosity require less energy for pumping and application, reducing wear and tear on printing equipment and minimizing downtime. This not only lowers operational costs but also boosts production throughput, a critical factor for meeting the high-volume demands of commercial printing.

3. Facilitating Ink Formulation and Innovation

The development of new ink formulations is a complex process that involves balancing various properties, including color, drying time, and adhesion. High shear viscosity measurements are integral to this. They provide invaluable data that helps chemists understand how changes in formulation affect ink performance under real-world printing conditions. This insight is crucial for innovating and developing inks that meet evolving market needs, such as faster drying times, improved environmental sustainability, or enhanced compatibility with novel printing substrates.

4. Ensuring Compatibility with Printing Equipment

Different printing techniques, from flexography to digital printing, impose unique demands on ink properties. High shear viscosity measurements help ensure that inks are compatible with specific printing equipment and techniques. For instance, inks used in digital printers often require lower viscosity to prevent nozzle clogging and ensure smooth inkjet ejection. By tailoring the high shear viscosity to the specific requirements of the printing equipment, manufacturers can prevent mechanical issues and ensure a seamless printing process.

High shear viscosity measurements can impact ink quality and performance. They influence a wide range of factors, from print clarity to production efficiency, and play a critical role. When we mention high shear, it has to be far above 1,000 1/s that many people may be accustomed to. Don't limit your research based on the limitation of your tools. Expand your horizon as you achieve shear rates that are far closer to the ink jetting process or 1,000,000 1/s+.