PURPOSE: To obtain the components suitable for an extender such as a printing ink and excellent for fluidity, printing processing, pigments stability, adhering to base materials by blending homogeneously aqueous dispersible polyesters and polyurethane in the specified ratio.
CONSTITUTION: The composition are prepared by blending (A) aqueous dispersible polyurethane having molecular weight of preferably 1,500-20,000 and (B) polyester having intrinsic viscosity of preferably 0.1-1.0 copolymerized with bifunctional dicarboxylic acids, glycols, trifunctional sulfomonomer containing metal sulfate and poly-(ethyleneglycol) or the like. Wherein, component A and component B are blended in the weight ratio B/A of 0.5-900 and preferably 0.1-85 wt.% of pigments and 0-75 wt.% of aqueous solvents are blended to prepare the components.
Hickman, William C.
Clark, Gary T.
Stockl, Hazel Rebecca Reid