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invisible ink printe / Product

invisible ink printe
invisible ink printe

There are so many documents need to be printed in office,but it may be thrown away after brief reading,very wasteful and not enough environmental.so i hope that we may can develop a new invisible ink printer combined with the existing printer.
The concepts of invisible ink printer :
Regular use,just same as the existing printer.
Use invisible ink printer
We can use invisible ink instead of regular ink.this ink can only keep the letter on the paper about 3 days to 7 days. After that, it will be faded and became a new paper just same as unused.
So paper repeat use can help us realize the idea of environmental protection .

University

Zhejiang Normal University

Zhejiang Normal University
Jinhua, Zhejiang Province, China

Design

Zhejiang Normal University

Zhejiang Normal University
Jinhua, Zhejiang Province, China