Printing paper that can be reused more than 80 times

The new paper can be erased and reprinted more than 80 times without adding ink, bringing great value to the economy and the environment.

New paper can be erased and reprinted more than 80 times. Photo: Wang.

An international research team has just announced a new paper product that can be printed with light and erased for reuse many times in the journal Nano Letters, Engineers Garage reported on February 3.

This type of paper uses the properties of certain chemicals that change color when exposed to light. Ordinary printing paper, after being coated with a thin layer of nano molecules, will become a new type of paper that can use ultraviolet rays to print.

In addition, the writing on the paper can be easily erased when it is heated at 120 degrees Celsius. Therefore, this type of paper can be reused more than 80 times.The aim of this product is to reduce the negative economic and environmental impacts of paper production.

"The most important thing in our research is to create a new type of paper that looks and feels like normal paper. However, they can be printed and erased many times without adding ink. This type of paper will bring great economic and environmental value to modern society," said Yandong Yin, working at the University of California, USA, a member of the research team.

According to VNE