DPDA Research Confirms Successful Deinking of Inkjet Printed Papers

It has been recently suggested that inkjet printed papers are not deinkable according to laboratory test conditions known as INGEDE Method 11. This lab test was primarily conceived to compare the deinking performance of gravure and offset prints on wood-containing papers. INGEDE Method 11 is sometimes cited as a simple lab-scale test to compare deinking performance of various printing technologies. “Method 11 may not be appropriate for all aqueous based inks, since the test is primarily a single step flotation test. With dye based inks, there is no ink particle to float, hence the futility of trying to meet this requirement.” said Dr Matthias Fromm, R&D Manager for Oce Printing Systems.