I found this, well I can say, a long waited and exciting finding; Xerox's scientists have invented a way of printing paper which only lasts for a day. This finding must be most welcomed by all environmentalists as it appears to be the best alternative to save more wasted paper in the office, hence save more trees. Currently, the erasable paper is being developed to a system that is commercially viable and is still in on-going research. This promising product is expected to hit the market within couple of years.
The specially created page can be used over and over again max 50 times. Xerox started work on the special after researchers studied how offices used paper. "You could see there were these documents people only use once or twice or for the day, and then they’re gone. You start to classify them. And from that, you could see that two out of every five [printed pages] are for daily use," said Paul Smith, a lab manager at the Xerox Research Centre of Canada. The paper is coated with special chemicals and once the paper goes through the printer it is exposed to a light source causing the text to on the paper to fade. It normally takes 16 to 24 hours for the text to fade but passing the paper through the printer quickens the process.
It reminds me of my Professional Studies coursework :)
source: New Launches.
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