A way to laser print colors that will not fade using tiny columns

(Phys.org)—A team of researchers at the Technical University of Denmark has developed a way to print colors onto a surface without using ink and which will not fade. In their paper published in the open-access journal Sciences Advances, the group describes the inspiration for their approach, how it works, their results and the one thing they still need to solve before their technique can be industrialized.

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