It is important to achieve comparative testing in inkjet development. By testing the dynamic surface tension , different properties can be analyzed, such as: wetting, drop size, penetration, drying and leveling ability.
Because the dynamic surface tension affects these factors, a tensiometer is needed to measure the dynamic surface tension , especially for dynamic time affecting the wetting process. A good repeatability is also required for successful R&D work.
Inkjet inks have short wetting times, so activators are typically used to reduce surface tension as quickly as possible. With the surface tension chart of different inks on the SITA tensiometer T60/2, you can evaluate the importance of dynamic surface tension on wetting performance.
Static testing methods such as the platinum plate/ring method cannot be used for such evaluation checks because of the large time and cleaning costs.
SITA's surface tensIon Meter is based on the principle of bubble pressure method, which provides a simple, affordable and reliable application method. By testing the dynamic surface tension, the test results can be optimized according to the application field. In addition , you can control the bubble life time according to the actual printing application, and it can be used for repeatability test.
SITA tensiometers can be connected to a computer through suitable and easy-to-operate software, and the data can be transferred to the computer , so that the data can be recorded and the test results can be evaluated.
By selecting an appropriate bubble life time, almost all dynamic process tests , and SITA's Surface Tensiometer can also test quasi-static surface tension at a relatively long bubble life time.
SITA's tensiometers have a uniform design and are easy to operate. In addition, SITA provides suitable conditions for the development and optimization of new products .
