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Scientists develop a recyclable pollen-based paper for repeated printing and ‘unprinting’

Baku, April 11, AZERTAC

Scientists at Nanyang Technological University, Singapore (NTU Singapore) have developed a pollen-based 'paper' that, after being printed on, can be 'erased' and reused multiple times without any damage to the paper, according to ScienceDaily.

In a research paper published online in Advanced Materials on 5 April, the NTU Singapore scientists demonstrated how high-resolution colour images could be printed on the non-allergenic pollen paper with a laser printer, and then 'unprinted' - by completely removing the toner without damaging the paper - with an alkaline solution. They demonstrated that this process could be repeated up to at least eight times.

This innovative, printer-ready pollen paper could become an eco-friendly alternative to conventional paper, which is made via a multi-step process with a significant negative environmental impact, said the NTU team led by Professors Subra Suresh and Cho Nam-Joon.

It could also help to reduce the carbon emissions and energy usage associated with conventional paper recycling, which involves repulping, de-toning (removal of printer toner) and reconstruction.

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