Chinese chemists develop `water-jet` printer
Zee Media Bureau
Beijing: Chinese chemists have developed a revolutionary new water-jet printer. This innovative printer uses water instead of ink on a re-writable paper. Researchers from Jilin University made this printer by taking a blank page and covering it with print by using water.
Although the text fades within 22 hours of being printed, researchers said 40 per cent of printed pages are thrown away anyway after being read only once.
This printer, which can switch between water and ink in case the user wants a more permanent print. It allows one page to be reprinted dozens of times and can help offices save money on paper.
The paper used for printing is treated with an invisible dye that becomes visible when exposed to water and as the dye slowly fades over time, higher temperatures causes it to fade more quickly."
The paper we used in our experiments is a common type that people can get anywhere," Zhang Xiao`an, professor and leader of the team, said.
Zhang added that as per his team`s calculation, dye-treating the paper that is generally used for printing adds only 5 percent to the price and is very cheap and also environmentally friendly.
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