Eco-friendly paper-saving ink removal technology

Engineers at Cambridge University in the United Kingdom have developed a new method that can use lasers to remove the printed and copied letters and images on paper, and it is hoped to bring a printer or copier with a "clear print" function to reuse the printed paper.

The technology uses a short-pulse laser heating to remove toner ink that has been printed on paper. The laser will evaporate the ink without damaging the paper. It can remove many kinds of prints and prints in just four billionths of a second. Ink. The researchers also found that although both UV and IR lasers can effectively remove ink, the best one is a visible green laser. This method does not cause any physical damage to the paper, nor does it cause the paper to discolor. The ink evaporated into gas can also be collected by a filtering device.

“This process works for a variety of toners without damaging the underlying paper, so it's easy to reuse them in the office.” Amy Mall feels that the technology can not only greatly Cutting down trees for papermaking can also be used as a cheaper recycling technology. There are already several companies that are interested in this first "clear printer".

Amoy Mall believes that "clear print" technology is more environmentally friendly than using chemical methods to recycle waste paper, which not only reduces the demand for chemicals but also reduces carbon dioxide emissions by 79%.

It is believed that the invention of this technology will soon be applied to various industries, especially the printing industry. Will give us a lot of technology that could not be achieved before!