dye

The system also works label-free, meaning it does not rely on added dyes.

“He said, ‘I thought you had red hair,’ because he’d seen me on the ‘Austin City Limits’ television show, and I’d dyed my hair red for that show.

Synthetic dyes are often added to make foods look more appealing, especially products aimed at children, but a growing body of evidence indicates they may contribute to behavioral problems such as hyperactivity and inattention.¹

They visit artisans at work making tie-dye cloth in nearby Arimatsu, a village that has been perfecting the art of dyeing fabrics in intricate patterns for 400 years.

This innovation could pave the way for sustainable new uses in materials and cosmetics, including applications in photoelectronics, thermal coatings, dyes, and UV-protective products.