The present disclosure provides aqueous ink-jet inks having improved salt stability containing an aqueous vehicle, a colorant, and a mixture of a water-borne anionic polymeric binder and a water-borne non-ionic polymeric binder.

The present disclosure provides aqueous ink-jet inks having improved salt stability containing an aqueous vehicle, a colorant, and a mixture of a water-borne anionic polymeric binder and a water-borne non-ionic polymeric binder.

Aqueous inkjet compositions comprising a composite resin vehicle wherein at least one component of the composite resin vehicle is a polyurethane dispersion (PUD) preferably with a glass transition temperature (Tg) of less than 80° C., and the other component is an acrylic resin dispersion preferably with a Tg of greater than 40° C. or a metal oxide nanoparticle dispersion such as colloidal silica with a particle size of less than 100 nm.

Aqueous inkjet compositions comprising a composite resin vehicle wherein at least one component of the composite resin vehicle is a polyurethane dispersion (PUD) preferably with a glass transition temperature (Tg) of less than 80° C., and the other component is an acrylic resin dispersion preferably with a Tg of greater than 40° C. or a metal oxide nanoparticle dispersion such as colloidal silica with a particle size of less than 100 nm.

An ink set including an aqueous inkjet ink composition and a primer composition. The aqueous inkjet ink composition contains a pigment, an alkali-soluble resin, a resin emulsion, a surfactant, a water-soluble solvent, and water; the resin emulsion contains a polyurethane resin emulsion and/or a polyolefin resin emulsion; the surfactant contains an alkyl sulfonate and/or a polyoxyethylene alkyl ether sulfate; the aqueous inkjet ink composition has a content of the alkyl sulfonate and/or the polyoxyethylene alkyl ether sulfate of 0.05% by mass or more and 0.5% by mass or less; and the primer composition contains an aggregation accelerator that accelerates aggregation of the aqueous inkjet ink composition. The ink set provides a printed matter having good print image quality and excellent abrasion resistance, and has good storage stability and ejection stability.

An ink set including an aqueous inkjet ink composition and a primer composition. The aqueous inkjet ink composition contains a pigment, an alkali-soluble resin, a resin emulsion, a surfactant, a water-soluble solvent, and water; the resin emulsion contains a polyurethane resin emulsion and/or a polyolefin resin emulsion; the surfactant contains an alkyl sulfonate and/or a polyoxyethylene alkyl ether sulfate; the aqueous inkjet ink composition has a content of the alkyl sulfonate and/or the polyoxyethylene alkyl ether sulfate of 0.05% by mass or more and 0.5% by mass or less; and the primer composition contains an aggregation accelerator that accelerates aggregation of the aqueous inkjet ink composition. The ink set provides a printed matter having good print image quality and excellent abrasion resistance, and has good storage stability and ejection stability.

A solder mask ink composition is disclosed. The solder mask ink composition includes an epoxy resin; a solvent in an amount of at least 20% by weight relative to the total weight of the solder mask ink composition; and optionally a non-ionic surfactant. The ink composition has a viscosity that is less than 1000 cps at a shear rate of 10 s.sup.−1 and greater than 30 cps at a shear rate of 495 s.sup.−1 and a temperature of 25° C.

A solder mask ink composition is disclosed. The solder mask ink composition includes an epoxy resin; a solvent in an amount of at least 20% by weight relative to the total weight of the solder mask ink composition; and optionally a non-ionic surfactant. The ink composition has a viscosity that is less than 1000 cps at a shear rate of 10 s.sup.−1 and greater than 30 cps at a shear rate of 495 s.sup.−1 and a temperature of 25° C.

Provided is a processing fluid including: water; a flocculant; and a urethane resin. A dry film formed of the processing fluid and having an average thickness of 500 micrometers has a tensile strength of 3.5 MPa or greater and a breaking elongation of 80% or greater.

Provided is a processing fluid including: water; a flocculant; and a urethane resin. A dry film formed of the processing fluid and having an average thickness of 500 micrometers has a tensile strength of 3.5 MPa or greater and a breaking elongation of 80% or greater.