Multicolour Printing Process and a Liquid Toner Composition
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United States of America Patent
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app pub date -
Jun 25, 2015
filing date -
Jul 2, 2014
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Abstract
The digital printing process includes the printing of liquid toner on both substrate sides. Thereto developed portions of a first and a second liquid toner are transferred to the first side and fused by exposure to infrared radiation and by subsequent contact fusing. The substrate is conditioned for a further transfer step by maintaining a substantially uniform water content therein during and after the fusing step, in which further transfer step at least one further developed portion of liquid toner is transferred to a side of the substrate. This occurs particularly by limiting heat development in the liquid toner, such as by using a black toner liquid with an absorbance at 800 nm of at most than 0.8.
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