An ink composition for ink jet pigment textile printing contains a dispersion of a self-dispersing carbon black pigment containing a phosphate group. An absolute value of a zeta potential V.sub.1 of the dispersion is 65 mV or less.

An ink composition for ink jet pigment textile printing contains a dispersion of a self-dispersing carbon black pigment containing a phosphate group. An absolute value of a zeta potential V.sub.1 of the dispersion is 65 mV or less.

An aqueous dispersion contains water and resin particles containing a resin, wherein the resin particles contains pigment-enclosed resin particles containing an inorganic pigment enclosed in the resin, wherein the pigment-enclosed resin particles have a 50 percent cumulative volume particle diameter (D50) of from 40 to 200 nm and a 90 percent cumulative volume particle diameter (D90) of from 70 to 500 nm as measured by laser diffraction scattering, wherein the pigment-enclosed resin particles have an average aspect ratio of from 1.0 to 1.5.

The present invention provides a pigment water dispersion that is excellent in dispersion stability, and also excellent in ejection properties even when used as an ink for ink-jet printing. The present invention relates to [1] a pigment water dispersion containing (A) a pigment, (B) a carboxy group-containing crosslinked polymer and (C) an alkyl group-containing ethanolamine having a pKa of not less than 8.7, [2] a water-based ink containing the pigment water dispersion, an organic solvent and a surfactant, and [3] a process for producing a pigment water dispersion, including step (I) of subjecting a mixture containing the pigment (A), a crosslinkable polymer, the aforementioned ethanolamine (C), an organic solvent and water to dispersion treatment, thereby obtaining a dispersion of pigment-containing polymer particles containing the pigment (A) and the crosslinkable polymer that is adhered onto the pigment (A); step (II) of removing the organic solvent from the obtained dispersion, thereby obtaining a water dispersion of the pigment-containing polymer particles; and step (III) of further subjecting the polymer to crosslinking reaction with a crosslinking agent, thereby obtaining the pigment water dispersion containing pigment-containing crosslinked polymer (B) particles.

The present invention provides a pigment water dispersion that is excellent in dispersion stability, and also excellent in ejection properties even when used as an ink for ink-jet printing. The present invention relates to [1] a pigment water dispersion containing (A) a pigment, (B) a carboxy group-containing crosslinked polymer and (C) an alkyl group-containing ethanolamine having a pKa of not less than 8.7, [2] a water-based ink containing the pigment water dispersion, an organic solvent and a surfactant, and [3] a process for producing a pigment water dispersion, including step (I) of subjecting a mixture containing the pigment (A), a crosslinkable polymer, the aforementioned ethanolamine (C), an organic solvent and water to dispersion treatment, thereby obtaining a dispersion of pigment-containing polymer particles containing the pigment (A) and the crosslinkable polymer that is adhered onto the pigment (A); step (II) of removing the organic solvent from the obtained dispersion, thereby obtaining a water dispersion of the pigment-containing polymer particles; and step (III) of further subjecting the polymer to crosslinking reaction with a crosslinking agent, thereby obtaining the pigment water dispersion containing pigment-containing crosslinked polymer (B) particles.

Methods for forming latexes are provided. In an embodiment, such a method comprises adding a monomer emulsion comprising water, a monomer, an acidic monomer, a hydrophilic monomer, a difunctional monomer, a first reactive surfactant, and a chain transfer agent, to a reactive surfactant solution comprising water, a second reactive surfactant, and an initiator, at a feed rate over a period of time so that monomers of the monomer emulsion undergo polymerization reactions to form resin particles in a latex. The reactive surfactant solution does not comprise monomers other than the second reactive surfactant, the reactive surfactant solution does not comprise a resin seed, and the monomer emulsion does not comprise the resin seed. The latex is characterized by a viscosity in a range of from about 10 cP to about 100 cP as measured at a solid content of about 30% and at room temperature. The latexes are also provided.

A dispersion liquid includes water, a coloring material, and a dispersion resin that disperses the coloring material. The dispersion resin has a constituent unit A containing a hydrophobic monomer, and a predetermined constituent unit B.

According to an embodiment of the present disclosure, provided is an ink jet ink composition which is a solvent-based ink, the composition including a metal pigment and an organic solvent, in which the metal pigment is a metal particle having a surface treated with a surface treatment agent, the surface treatment agent contains a compound represented by General Formula (1) and a compound represented by General Formula (2), and a mass ratio of a mass of the compound represented by General Formula (2) to a total mass of the compound represented by General Formula (1) and the compound represented by General Formula (2) is 45% by mass or less.

(R—O—)P(O)(OH).sub.2  (1)

(R—O—).sub.2P(O)(OH)  (2)

(In the formulae, R's each independently represent a hydrocarbon group having 8 or more carbon atoms.)

An example of a white inkjet ink includes: a non-self-dispersed white pigment; from about 0.005 wt % to about 1 wt %, based on a total weight of the white inkjet ink, of an anionic copolymer dispersant having a weight average molecular weight (Mw) ranging from about 125,000 g/mol to about 30,000,000 g/mol; a polymeric binder; and an aqueous vehicle. The white inkjet ink may be used in a textile printing kit.

An ultraviolet curable ink composition for forming a bezel pattern of a foldable display substrate, methods of using the same, a bezel pattern formed from the same, and a foldable display substrate include the bezel pattern are disclosed herein. In some embodiments, an ultraviolet curable ink composition includes a black pigment, a dispersant, an alicyclic epoxy compound, an oxetane compound, a photosensitizer, a photopolymerization initiator, and an organic solvent, wherein a weight ratio of the photosensitizer to the photopolymerization initiator is 1:1 to 1:2, and a sum of the amounts of the photosensitizer and the photopolymerization initiator is 13 to 21 parts by weight based on 100 parts by weight of a sum of the amounts of the alicyclic epoxy compound and the oxetane compound. The ink composition is capable of forming a bezel pattern having a diminished thickness and excellent light blocking properties.