Method of agglomerating printing ink and formulations for...

Details Method of agglomerating printing ink and formulations for... Method of agglomerating printing ink and formulations for...

D - Textiles, Paper

21

C

D21C 5/02 (2006.01)

Patent

CA 2185007

A method of de-inking non-impact printed paper comprises contacting repulped paper with a formulation comprised of a derivatized ethylene oxide/propylene oxide polymer and a petroleum hydrocarbon distillate. The process separates the ink from the paper and agglomerates the separated ink into particles of a size sufficient that they can be efficiently removed from the paper fibers.

Un procédé de désencrage de papier imprimé sans percussion, consiste à mettre en contact la pâte obtenue après retrituration avec une formulation constituée d'un dérivé de polymère d'oxyde d'éthylène et d'oxyde de propylène, et d'un distillat d'hydrocarbure de pétrole. Le procédé permet de séparer l'encre du papier et de l'agglomérer en particules d'une taille suffisante pour qu'elles puissent être séparées efficacement des fibres de papier.

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