The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent, a hydrophobizing agent, and a hydrophilizing agent. The fusing agent can include water and an electromagnetic radiation absorber, wherein the electromagnetic radiation absorber absorbs radiation energy and converts the radiation energy to heat. The hydrophobizing agent can include water and a hydrophobic additive including a first polymer having a hydrophobic group, a monomer that is polymerizable to form a first polymer having a hydrophobic group, or a combination thereof. The hydrophilizing agent can include water and a hydrophilic additive including a second polymer having a hydrophilic group.

A method of inkjet printing a gradient dielectric element in a deposition and photo-polymerization process. The method comprises: providing a plurality of complex-dielectric-inks that are inkjet printable including a nanocomposite-ink with an organic-matrix and a nanoparticle filler dispersed within. The plurality of complex-dielectric-inks have a first complex-dielectric-ink having a first photoinitiator and a second complex-dielectric-ink with a second photoinitiator. The first and second complex-dielectric-ink have different wavelength selective photo-polymerization absorption bands such that spectrally discrete exposure results in different degrees of polymerization of the first and second complex-dielectric-ink. The method further comprises providing an optical source to polymerize the complex-dielectric-inks, depositing droplets of the plurality of complex-dielectric-ink and curing the plurality of complex-dielectric-inks, wherein deposition of the plurality of layers result in a volumetric nanoparticle concentration gradient.

A method of inkjet printing a gradient dielectric element in a deposition and photo-polymerization process. The method comprises: providing a plurality of complex-dielectric-inks that are inkjet printable including a nanocomposite-ink with an organic-matrix and a nanoparticle filler dispersed within. The plurality of complex-dielectric-inks have a first complex-dielectric-ink having a first photoinitiator and a second complex-dielectric-ink with a second photoinitiator. The first and second complex-dielectric-ink have different wavelength selective photo-polymerization absorption bands such that spectrally discrete exposure results in different degrees of polymerization of the first and second complex-dielectric-ink. The method further comprises providing an optical source to polymerize the complex-dielectric-inks, depositing droplets of the plurality of complex-dielectric-ink and curing the plurality of complex-dielectric-inks, wherein deposition of the plurality of layers result in a volumetric nanoparticle concentration gradient.

The present invention provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.5 to 7.0. The present invention also provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.0 to 6.5, and the ink composition has a water (H.sub.2O) content of 90 ppm or less measured with a Karl Fischer moisture meter. The present invention also provides a light conversion layer including a plurality of pixel units, wherein the plurality of pixel units include a pixel unit containing a cured product of the ink composition, and the light conversion layer is formed of the cured product of the ink composition. The present invention also provides a color filter including the light conversion layer.

The present invention provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.5 to 7.0. The present invention also provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.0 to 6.5, and the ink composition has a water (H.sub.2O) content of 90 ppm or less measured with a Karl Fischer moisture meter. The present invention also provides a light conversion layer including a plurality of pixel units, wherein the plurality of pixel units include a pixel unit containing a cured product of the ink composition, and the light conversion layer is formed of the cured product of the ink composition. The present invention also provides a color filter including the light conversion layer.

A water-based ink for ink-jet recording includes: a pigment, resin particles, a solvent and water, wherein the resin particles are resin particles of an acrylic-based polymer; and a storage elastic modulus E at 25° C. of an ink film, of the water-based ink for ink-jet recording, which is dried and solidified is not less than 9.7×10.sup.8 Pa.

A water-based ink for ink-jet recording includes: a pigment, acrylic-based resin particles, a surfactant, trimethylglycine, and water; wherein a glass transition temperature of the acrylic-based resin particles is not less than 25° C. and is less than 50° C.; and a static surface tension of the water-based ink for ink-jet recording is not more than 27 mN/m.

A water-based ink for ink-jet recording includes: a pigment, acrylic-based resin particles, a surfactant, trimethylglycine, and water; wherein a glass transition temperature of the acrylic-based resin particles is not less than 25° C. and is less than 50° C.; and a static surface tension of the water-based ink for ink-jet recording is not more than 27 mN/m.

An ink jet ink composition includes: a colorant; silica particles; 1-(2-hydroxyethyl)-2-pyrrolidone; and water, and the silica particles have in a TEM image thereof, a Di (diameter of the maximum inscribed circle)/Dc (diameter of the minimum circumscribed circle) of 0.7 or more.

An example of a white inkjet ink includes a non-self-dispersed white pigment; an anionic cellulose; a polymeric binder; and an aqueous vehicle. The anionic cellulose is present in an amount ranging from about 0.01 wt% to about 5 wt% based on a total weight of the white inkjet ink. The white inkjet ink may be used in a textile printing kit.