Copyright © 2016 American Chemical Society / Jing Wei, Xiuling Jiao, Ting Wang*, and Dairong Chen* Shandong University
as an effort to reduce the use of paper. The flexible membrane is made with tungsten oxide and water soluble polymer. "Printing" occurs when you expose the surface to a UV light. The membrane can be printed and erased 40 times. It takes around 10 seconds for the print to show up on the surface. It takes 10 days for the print to fade naturally over time.
The chemists and materials engineer at Shandong University in Jinan, China said in their report that photochromic membranes are low-cost, environmental benign and easy for large-scale production, indicate their great potential as flexible rewritable media for practical usage.
This technology is suitable as an ink-printing alternative. You just need this rewritable membrane and inexpensive UV lamps to start printing.
The scientists also suggest that the immediate application for this technology would be customizable logo prints for companies.
The study is published in