Block-printing inks come in two main varieties—water based and oil based. A water-based ink is quick drying, provides a lovely translucency with subtle gradations of tone, and can be easily cleaned up ...

A flick of a switch, and electrochromic films change their colors. Now they can be applied more safely and more commonly thanks to an innovative chemical process that makes them water soluble. They ...

Georgia Tech chemists have developed water-based electrochromic film inks for colour-change applications such as auto-dimming rear-view car mirrors. “There were some hurdles to pulling it off,” said ...