Deinking formulation for flexographic inks

Details Deinking formulation for flexographic inks Deinking formulation for flexographic inks

D - Textiles, Paper

21

C

D21C 5/02 (2006.01)

Patent

CA 2163527

The removal of hydrophilic flexographic inks from a pulp fiber slurry in a flotation or flotation/wash deinking system is accomplished by using a combination of (a) a fatty acid or salt thereof, (b) a rosin acid or salt thereof, and (c) a non-ionic or anionic surfactant along with water having a hardness of about 80 to 500 ppm Ca+2.

On réalise le retrait d'encres flexographiques hydrophiles des boues de pulpe de fibres, dans un système de désencrage par flotation ou par flotation/lavage, en utilisant une combinaison de (a) un acide gras ou un sel de celui-ci; (b) un acide résinique ou un sel de celui-ci et (c) un agent tensio-actif non ionique ou anionique mélangé à de l'eau d'une dureté d'environ 90 à 500 ppm Ca<+2>.

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