What is Dispersion?
Even if you mix water and mud, the mud sinks to the bottom after a while. Water and oil are another example of this. Dispersion is the technology of mixing substances that do not completely mix together into a uniform state so they do not separate. In ink for example, the pigment powder must be evenly dispersed in a liquid. Need is also increasing for aqueous resins that have various polymers dispersed in water so that organic solvents don't volatilize into the environment. Pigment particles that don't melt in solids are finely and evenly dispersed in colorful plastics.
DIC's Dispersion Technology
DIC's uniquely developed dispersion blending technology and dispersion process flow allow high dispersion of microscopic solid components (nanoparticles) to answer even higher demands for performance. For liquids that are difficult to mix and solid particles with a high specific gravity, once dispersed they may separate again. DIC has technologies to improve dispersion performance by treating the surface of solid particles with organic materials. We also have technologies for dispersing resins like acrylic, polyester, and urethane resins in water. DIC's knowledge is alive in our optimal formulations for materials and dispersion process design.
Examples of DIC products created by dispersion technology
UV offset ink for normal paperboard
Nano silver ink for printing fine patterns
Out of all printed materials, there are exceptionally varied demands in UV printed materials that dry by UV light like ease of use during printing, paper surface quality, and their friendliness to the people using them. DIC has sincerely researched what is being demanded in inks for UV printed materials with the goal of inks that are friendly to everyone involved in printed materials. Dispersion technologies like maintaining emulsification stability are living in aspects of characteristics that include stable printing, achieving both a better black impression and curability, and a large reduction in printing odor.
Nano silver ink is a conductive material for electronic devices in fine wiring applications by fine patterns or flexible organic transistor electrodes using plastic substrates that require treatments at low temperatures. A characteristic of nano silver ink is that it can be applied with various printing methods like inkjet printing when manufacturing these items. DIC possess technology to keep nano silver particles from clumping together and to manufacture stable nano silver particle dispersions with the average silver particle size controllable in a range of between 10 nm to 50 nm.