LASTING EASY- TO- MAKE RE- WRITABLE PAPER MADE

Beijing, Dec. 8: Scientists have developed an easytomake “rewritable” paper that can be drawn or printed on over and over again.

Printed materials often get used once and are then discarded, creating waste and potential pollution.

Researchers including those from the Fujian Normal University in China wanted to develop a simple method for making long- lasting rewritable paper that can be wiped clean simply by changing the temperature.

The messages can last more than half a year, compared to other rewritable papers whose messages fade after a few days or a few months, according to a study published in the journal ACS Applied Materials & Interfaces.

The idea is not new, with several research groups pursuing different development strategies. However, many of these approaches have drawbacks, such as complex fabrication, the chemistry that relies on ultraviolet light to erase the writing.