Date: 6 months ago   Category: Hi-Tech

China created reusable paper (photo)


Scientists of the university in China developed paper which can be used many times.

can be Written on paper with the thermohandle or infrared light. The text or the drawing on such paper remain before half a year, but it can be "erased", having just cooled.

Paper consists of three layers: in the middle usual paper is located, on the one hand the layer, and with another - a black photothermal toner is put termokhromny.

Termokhromny gives a layer to paper of property of reusable use.

Principle of work of paper following: at first, at a usual temperature, it has blue color. After heating (by means of the thermohandle) solvent turns into liquid state because of what developer is distributed and paper becomes colourless.

"to erase" information on paper - just needs to cool it to-10 degrees Celsius, it can be done in the refrigerator.

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