https://www.adhesive4laminating.com/products/film-forming-type-pu-resin/
The film-former grade PU resin for gravure ink is mainly used for lamination ink, with some variants suitable for surface printing ink due to excellent color strength. Normally the film-former grade PU resin for gravure ink can cooperate with NC resin, vinyl resin (Vinyl Chloride-Vinyl Acetate Copolymer) and PVB resin, and it can also be formulated into 100% PU ink. All the film-former grade PU resins for gravure ink exhibit strong compatibility with various adhesives, ensuring high bonding strength.