Preparation of acrylic-polyurethane emulsion as binder for aqueous pigment inks of ink jet in textile printing

摘要

Aqueous acrylic-polyurethane emulsions were prepared by semibatch polymerization of acrylic monomer mixtures (butyl acrylate, methyl methacrylate and acrylic acid) in the presence of polyurethane dispersion. The rheological properties and its utilization as a binder for aqueous pigment inks of ink jet printing were thoroughly investigated. It was found that the prepared binder is characterized by low viscosity at a high rate of shear, and exhibited Newtonian behavior. The results obtained indicated that the aqueous acrylic-polyurethane emulsions can be used safely for aqueous pigment inks of ink jet in textile printing.