An example of a three-dimensional (3D) printing kit includes a build material composition and a fusing agent to be applied to at least a portion of the build material composition during 3D printing. The build material composition includes a polyamide having a melt enthalpy ranging from greater than 5 J/g to less than 150 J/g. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the polyamide in the at least the portion. The fusing agent is a core fusing agent and the energy absorber has absorption at least at wavelengths ranging from 400 nm to 780 nm; or the fusing agent is a primer fusing agent and the energy absorber is a plasmonic resonance absorber having absorption at wavelengths ranging from 800 nm to 4000 nm and having transparency at wavelengths ranging from 400 nm to 780 nm.

An example of a three-dimensional (3D) printing kit includes a build material composition and a fusing agent to be applied to at least a portion of the build material composition during 3D printing. The build material composition includes a polyamide having a melt enthalpy ranging from greater than 5 J/g to less than 150 J/g. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the polyamide in the at least the portion. The fusing agent is a core fusing agent and the energy absorber has absorption at least at wavelengths ranging from 400 nm to 780 nm; or the fusing agent is a primer fusing agent and the energy absorber is a plasmonic resonance absorber having absorption at wavelengths ranging from 800 nm to 4000 nm and having transparency at wavelengths ranging from 400 nm to 780 nm.

The present invention relates to a composition comprising at least one light emitting moiety.

The present invention relates to a composition comprising at least one light emitting moiety.

A water-based ink for ink-jet printing, including a pigment, water-insoluble crosslinked polymer particles, an organic solvent, and water. The water-insoluble crosslinked polymer particles are constituted of a polymer A having a crosslinked structure, which includes carboxy groups and has an acid value of not less than 45 mgKOH/g and not more than 180 mgKOH/g. The ink includes alkali metal ions in an amount of not less than 15 mol % and not more than 65 mol %, and ammonium ions in an amount of not less than 55 mol % and not more than 145 mol %, both on the basis of a whole molar amount of the carboxy groups of the polymer A.

A water-based ink for ink-jet printing, including a pigment, water-insoluble crosslinked polymer particles, an organic solvent, and water. The water-insoluble crosslinked polymer particles are constituted of a polymer A having a crosslinked structure, which includes carboxy groups and has an acid value of not less than 45 mgKOH/g and not more than 180 mgKOH/g. The ink includes alkali metal ions in an amount of not less than 15 mol % and not more than 65 mol %, and ammonium ions in an amount of not less than 55 mol % and not more than 145 mol %, both on the basis of a whole molar amount of the carboxy groups of the polymer A.

Provided is an ink composition for inkjet recording containing water, a pigment, and a water-soluble polymer having a carboxy group, in which the water-soluble polymer satisfies the following expression (1), and the ink composition for inkjet recording is used for recording an ink image on a recording medium to which a pretreatment liquid including at least one aggregating agent selected from the group consisting of acids, cationic polymers, and polyvalent metal salts is applied:

230 mgKOH/g≤Σ(a×b)≤750 mgKOH/g   (1)

a means an acid value of the water-soluble polymer, in terms of mgKOH/g, and b means a content of the water-soluble polymer with respect to a total amount of the ink composition, in terms of % by mass.

Provided is an ink composition for inkjet recording containing water, a pigment, and a water-soluble polymer having a carboxy group, in which the water-soluble polymer satisfies the following expression (1), and the ink composition for inkjet recording is used for recording an ink image on a recording medium to which a pretreatment liquid including at least one aggregating agent selected from the group consisting of acids, cationic polymers, and polyvalent metal salts is applied:

230 mgKOH/g≤Σ(a×b)≤750 mgKOH/g   (1)

a means an acid value of the water-soluble polymer, in terms of mgKOH/g, and b means a content of the water-soluble polymer with respect to a total amount of the ink composition, in terms of % by mass.

The present disclosure describes ink compositions having a polyurethane binder. In one example, an ink composition can include water, an organic co-solvent, a colorant, and a polyurethane binder. The polyurethane binder can include polymerized prepolymer segments including a polymerized diisocyanate and a polymerized polyol, wherein the prepolymer segments terminate in isocyanate groups. The polyurethane binder can also include polymerized chain extenders connecting the polymerized prepolymer segments. The polymerized chain extenders can include a polymerized siloxane-containing diamine and a polymerized acid-containing diamine.

The present disclosure describes ink compositions having a polyurethane binder. In one example, an ink composition can include water, an organic co-solvent, a colorant, and a polyurethane binder. The polyurethane binder can include polymerized prepolymer segments including a polymerized diisocyanate and a polymerized polyol, wherein the prepolymer segments terminate in isocyanate groups. The polyurethane binder can also include polymerized chain extenders connecting the polymerized prepolymer segments. The polymerized chain extenders can include a polymerized siloxane-containing diamine and a polymerized acid-containing diamine.