Toward Deinking of LEP Inks Printed on Different Substrates, PaperCon 2013

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Digital printing plays a very important role in the life of modern society. With the development of digital printing technologies, and the increasing market share of digital printing, the amount of digital prints in waste paper is rapidly increasing. Under “green” manufacturing and environmental sustainability, deinking of digital print inks is an urgent problem that needs to be solved. Indigo is a typical series of Liquid Electrophotography (LEP) digital presses that use an LEP) ink. The toner particle size of LEP ink is very small, 1-2 microns, which is smaller than dry toners.But, during flotation, the ink platelets are much larger making them difficult tobe removed by flotation.