An ink composition providing NiO nanoparticles dispersed in a liquid medium, wherein the liquid medium provides a first solvent that has a boiling point of 150° C. or more, the boiling point being measured at a pressure of 100 kPa. A process for printing an ink composition, the process providing depositing an ink composition onto a substrate, the ink composition having NiO nanoparticles dispersed in a liquid medium; and removing at least a portion of the liquid medium from the substrate to provide a printed substrate having printed material thereon, wherein the liquid medium comprises a first solvent, the first solvent having a boiling point of 150° C. or more. The ink composition and printing process are useful for printing microelectronics.

An ink composition providing NiO nanoparticles dispersed in a liquid medium, wherein the liquid medium provides a first solvent that has a boiling point of 150° C. or more, the boiling point being measured at a pressure of 100 kPa. A process for printing an ink composition, the process providing depositing an ink composition onto a substrate, the ink composition having NiO nanoparticles dispersed in a liquid medium; and removing at least a portion of the liquid medium from the substrate to provide a printed substrate having printed material thereon, wherein the liquid medium comprises a first solvent, the first solvent having a boiling point of 150° C. or more. The ink composition and printing process are useful for printing microelectronics.

An example of an inkjet ink composition includes a pigment, a dispersion synergist, a metal oxide, a polar solvent and water. The pigment is selected from the group consisting of a quinacridone and a phthalocyanine. The dispersion synergist has a structure of the pigment substituted with at least one solubilizing moiety selected from the group consisting of an ionic moiety, a non-ionic moiety, and a combination thereof.

An example of an inkjet ink composition includes a pigment, a dispersion synergist, a metal oxide, a polar solvent and water. The pigment is selected from the group consisting of a quinacridone and a phthalocyanine. The dispersion synergist has a structure of the pigment substituted with at least one solubilizing moiety selected from the group consisting of an ionic moiety, a non-ionic moiety, and a combination thereof.

A photosensitive reducible silver ion-containing composition can be used to provide electrically-conductive silver metal in thin films or patterns. This composition comprises: a) a non-hydroxylic-solvent soluble silver complex represented by the following formula (I):
(Ag.sup.+).sub.a(L).sub.b(P).sub.c  (I)
wherein L represents an α-oxy carboxylate; P represents an oxime compound; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2; b) a photosensitizer that can either reduce the reducible silver ion or oxidize the α-oxy carboxylate; and c) a solvent medium comprising at least one non-hydroxylic solvent. Electrically-conductive silver can be provided by photochemical conversion of the reducible silver ions in the complex.

A photosensitive reducible silver ion-containing composition can be used to provide electrically-conductive silver metal in thin films or patterns. This composition comprises: a) a non-hydroxylic-solvent soluble silver complex represented by the following formula (I):
(Ag.sup.+).sub.a(L).sub.b(P).sub.c  (I)
wherein L represents an α-oxy carboxylate; P represents an oxime compound; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2; b) a photosensitizer that can either reduce the reducible silver ion or oxidize the α-oxy carboxylate; and c) a solvent medium comprising at least one non-hydroxylic solvent. Electrically-conductive silver can be provided by photochemical conversion of the reducible silver ions in the complex.

An example of a thermal inkjet fluid composition includes a water soluble photoacid generator having substantially no absorbance at a radiation wavelength ranging from about 360 nm to about 410 nm, a water soluble polymeric sensitizer having absorption at the radiation wavelength ranging from about 360 nm to about 410 nm, a polymeric binder, and a balance of water. The water soluble polymeric sensitizer includes a functionalized aromatic chromophore moiety, a polyether chain, and an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized aromatic chromophore moiety.

An example of a thermal inkjet fluid composition includes a water soluble photoacid generator having substantially no absorbance at a radiation wavelength ranging from about 360 nm to about 410 nm, a water soluble polymeric sensitizer having absorption at the radiation wavelength ranging from about 360 nm to about 410 nm, a polymeric binder, and a balance of water. The water soluble polymeric sensitizer includes a functionalized aromatic chromophore moiety, a polyether chain, and an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized aromatic chromophore moiety.

A textile printing system includes an ink composition and a fabric substrate. The ink composition includes from 50 wt % to 95 wt % water, from 4 wt % to 49 wt % organic cosolvent, from 0.5 wt % to 12 wt % pigment with a dispersant associated with a surface thereof, and from 0.5 wt % to 20 wt % polyurethane-latex hybrid particles. The polyurethane-latex hybrid particles include a polyurethane shell having an acid number from 50 mg KOH/g to 110 mg KOH/g and a (meth)acrylic latex core having a glass transition temperature from −30° C. to 50° C. A weight ratio of polyurethane shell to (meth)acrylic latex core is from 1:19 to 3:7 in this example.

A textile printing system includes an ink composition and a fabric substrate. The ink composition includes from 50 wt % to 95 wt % water, from 4 wt % to 49 wt % organic cosolvent, from 0.5 wt % to 12 wt % pigment with a dispersant associated with a surface thereof, and from 0.5 wt % to 20 wt % polyurethane-latex hybrid particles. The polyurethane-latex hybrid particles include a polyurethane shell having an acid number from 50 mg KOH/g to 110 mg KOH/g and a (meth)acrylic latex core having a glass transition temperature from −30° C. to 50° C. A weight ratio of polyurethane shell to (meth)acrylic latex core is from 1:19 to 3:7 in this example.