How to characterize and optimize inkjet inks - Part 1

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00:00:00 How to Characterize and Optimize Inkjet Inks Part 1: Made to Measure!
00:02:46 How to Characterize and Optimize Inkjet Inks Part 1: Made to Measure!
00:03:25 Contents
00:04:06 Ink-jet inks overview
00:05:31 Particle sizing for ink-jet inks
00:06:31 Challenges of particle sizing for pigments
00:08:14 Zetasizer Nano Series
00:10:36 Dynamic Light Scattering
00:13:15 Intensity Fluctuations and Brownian Motion
00:13:44 Intensity Fluctuations, Correlation and Size
00:15:07 Upper Size and Concentration Limits
00:17:34 Extending the Upper Size and Concentration Range
00:18:27 Non Invasive Back Scatter: NIBS
00:20:30 The Mastersizer 3000
00:22:01 Laser diffraction – how does it work?
00:23:12 Mastersizer 3000 optics: red light measurements
00:24:19 Mastersizer 3000 optics: blue light measurements
00:25:57 The data from a diffraction measurement
00:27:02 Understanding the scattering data
00:27:19 Understanding the scattering data
00:28:05 How do we get the size distribution?
00:30:11 Reporting and interpreting the results
00:30:59 Comparing intensity, volume and number distributions
00:33:03 Ink-jet ink case studies
00:33:30 Case study: Wet mill monitoring
00:34:27 Case study: Wet mill monitoring
00:36:11 Case study: Detecting oversized particles
00:37:05 Case study: Detecting oversized particles
00:38:05 Case study: Detecting oversized particles
00:39:17 Case study: Primary pigment scattering efficiency
00:40:48 Case study: Primary pigment scattering efficiency
00:41:45 Effect of particle size on pigment coatings
00:42:54 Paints and pigments: extender pigments
00:43:37 Paints and pigments: extender pigments
00:45:20 Blue Pigment Dispersions
00:47:27 Pigment Dispersions
00:48:21 Pigment Dispersions(measured at 1.5% w/v)
00:49:12 Pigment Dispersions(measured at 1.5% w/v)
00:49:29 Pigment Dispersions(measured at 1.5% w/v)
00:50:18 Conclusions
00:51:39 Further Information
00:52:00 Contact Information

Inkjet technology and the printing flexibility it offers is enabling a rapid growth in industrial and commercial inkjet printing. Modern inkjet print heads can be designed and configured to print on many different substrates, and can produce functional 3D structures as well as 2D images. The inks used for a specific application must meet certain criteria; firstly they must be printable and secondly they must produce the desired decorative effect or functionality when printed. These two important criteria are related to the properties of the ink formulation and the properties of the dispersed pigment.

In the first webinar of our three part series, we focus on the importance of particle size measurements for evaluating and controlling pigment size and stability during the milling process. The particle size of pigments or other solid component is critical in determining the properties of the products in which they are used including opacity, color, hue, tinting strength, gloss, durability and also ink viscosity.