Magic laser toner evaporation technology to realize the reuse of printing paper

Not long ago, when a company employee in South Korea printed and used the back side of discarded printing paper, it revealed the personal information of the user on the other side of the printing paper. This incident caused great controversy and the company was able to make full use of the original paper. It is a good way to reduce company expenses and save energy, but accidentally leaked personal information of the company's users, causing certain adverse effects on users. Is there no way to reuse printed paper?

Amazing laser toner evaporation technology for paper regeneration

According to the "NewScientist" online news report, scientists at the University of Cambridge in the United Kingdom have recently invented a new technology that uses lasers to evaporate toner on paper without damaging printed paper to achieve the purpose of paper reuse.

The core of the idea is to remove the toner from the printed paper without damaging the paper. With the lowest laser energy range, the most suitable wavelength of the laser is 532 nm, which is the part where the green visible light can reach. In order to verify the effect, the scientists repeated the printing-removal-printing process three times. The results showed that there was almost no residue in the toner after repeated printing.

With this kind of laser toner evaporation technology, the printed paper can be highly utilized, which not only saves company expenses, but also reduces waste of resources. This is a great invention.