An object of the present invention is to provide an ink composition for manufacturing an organic semiconductor device, the ink composition allowing an organic semiconductor material with a rigid main chain into an ink having an optimal solute concentration for a single-crystal formation process. The present invention provides an ink composition for manufacturing an organic semiconductor device, the ink composition including at least one solvent selected from Naphthalene Compound (A) and at least one solute. The isomer content of Naphthalene Compound (A) is preferably 2% or less in terms of a percentage for peak area with Naphthalene Compound (A) being 100% in gas chromatography. Naphthalene Compound (A): a compound represented by Formula (a), where in Formula (a), R is as defined in the description.

The present disclosure is drawn to non-aqueous ink compositions. The non-aqueous ink compositions can include from 70 wt % to 98 wt % alcohol solvent, from 1 wt % to 6 wt % phenol-formaldehyde resin having a softening point from 135° C. to 180° C., and from 1 wt % to 14 wt % organic solvent-soluble dye.

The present disclosure is drawn to non-aqueous ink compositions. The non-aqueous ink compositions can include from 70 wt % to 98 wt % alcohol solvent, from 1 wt % to 6 wt % phenol-formaldehyde resin having a softening point from 135° C. to 180° C., and from 1 wt % to 14 wt % organic solvent-soluble dye.

A low migration energy curable ink composition may include, based upon total composition weight: a) from about 10% to about 80% of a solvent system comprising the following: i) from about 35% to about 80% of one or more mono-functional acrylate monomers, ii) from about 10% to about 35% of one or more di-functional acrylate monomers, and iii) from about 10% to about 30% of one or more tri-functional or greater acrylate monomers; b) from about 3% to about 30% of an acrylate oligomer, and c) from about 1% to about 15% of a colorant. The low migration energy curable ink may be incorporated into an absorbent article.

A low migration energy curable ink composition may include, based upon total composition weight: a) from about 10% to about 80% of a solvent system comprising the following: i) from about 35% to about 80% of one or more mono-functional acrylate monomers, ii) from about 10% to about 35% of one or more di-functional acrylate monomers, and iii) from about 10% to about 30% of one or more tri-functional or greater acrylate monomers; b) from about 3% to about 30% of an acrylate oligomer, and c) from about 1% to about 15% of a colorant. The low migration energy curable ink may be incorporated into an absorbent article.

An embodiment of relates to a magenta ink for an inkjet containing two or more pigments, a water-soluble organic solvent (A), a surfactant and water, wherein the two or more pigments contain an azo pigment, an amount of the azo pigment is from 0.5 to 8% by mass of a total mass of the magenta ink and from 35 to 100% by mass of a total mass of the pigments, the solvent (A) contains a specific diol-based solvent (A-1) in a molar amount of from 5 to 250 times a molar amount of the azo pigment, a molar amount of a specific diol-based solvent (A-2) in the solvent (A) is 0.1 times or less the molar amount of the solvent (A-1), and an amount of a cyclic amide-based solvent in the solvent (A) is not more than 4.5% by mass of the total mass of the magenta ink.

An embodiment of relates to a magenta ink for an inkjet containing two or more pigments, a water-soluble organic solvent (A), a surfactant and water, wherein the two or more pigments contain an azo pigment, an amount of the azo pigment is from 0.5 to 8% by mass of a total mass of the magenta ink and from 35 to 100% by mass of a total mass of the pigments, the solvent (A) contains a specific diol-based solvent (A-1) in a molar amount of from 5 to 250 times a molar amount of the azo pigment, a molar amount of a specific diol-based solvent (A-2) in the solvent (A) is 0.1 times or less the molar amount of the solvent (A-1), and an amount of a cyclic amide-based solvent in the solvent (A) is not more than 4.5% by mass of the total mass of the magenta ink.

The present invention relates to a water-based metal fine particle dispersion containing metal fine particles (a) dispersed with a dispersant B, in which the dispersant B contains a vinyl-based polymer (b) containing a constitutional unit derived from a hydrophobic monomer, a constitutional unit derived from a carboxy group-containing monomer and a constitutional unit derived from a polyalkylene glycol segment-containing monomer in an amount of not less than 85% by mass, the fine particles (a) have a cumulant average particle size of 2 to 50 nm, and a concentration of metal in the dispersion is 30 to 80% by mass, and a process for producing the dispersion; a metallic printing ink containing the dispersion; and a metallic printing method using the ink.

The present invention relates to a water-based metal fine particle dispersion containing metal fine particles (a) dispersed with a dispersant B, in which the dispersant B contains a vinyl-based polymer (b) containing a constitutional unit derived from a hydrophobic monomer, a constitutional unit derived from a carboxy group-containing monomer and a constitutional unit derived from a polyalkylene glycol segment-containing monomer in an amount of not less than 85% by mass, the fine particles (a) have a cumulant average particle size of 2 to 50 nm, and a concentration of metal in the dispersion is 30 to 80% by mass, and a process for producing the dispersion; a metallic printing ink containing the dispersion; and a metallic printing method using the ink.

Provided is an active-energy-ray-curable liquid composition containing a monomer (A) having a hydrogen-bonding capacity and a solvent (B) having a hydrogen-bonding capacity, wherein the active-energy-ray-curable liquid composition satisfies conditions below, <Conditions> a cured product obtained by irradiating the active-energy-ray-curable liquid composition with 500 mJ/cm.sup.2 of an active energy ray is a solid having a compressive stress of 2.0 kPa or greater when compressed by 1% at 25 degrees C., and the cured product has a water decaying property.