Fine particles with no processing headaches
A company uses jet mills and air classifiers to size-reduce customers’ abrasive, friable, and temperature-sensitive materials to ultrafine particles with narrow size distributions.
If you live in the US, take out your wallet and pull out one of the recently redesigned 10- or 20-dollar bills. Hold it up to the light and move it around a bit. Notice how the color changes as you move the bill? When the US government began redesigning its paper currency a few years ago, it decided to combat ever-more-sophisticated counterfeiting methods by building in more safeguards. One of these is a color-changing ink, which is made possible by the ink’s precise particle sizes. Some of those particles on your bill may well have been produced by CCE Technologies, Cottage Grove, Minn.