COMENS
https://www.adhesive4laminating.com/products/pu-resin-for-ink/
The liquid flexible packaging ink is made by resin, pigment, additives and solvent. And the PU resin for ink (also called ink binder)is the core of the ink, due to the PU advantage, now PU resin for ink (ink binder) becomes more and more popular, especially for the retorting application.