A liquid composition set is provided. The liquid composition set comprises: a liquid composition X comprising a polymerizable compound X and a solvent X; and a liquid composition Y comprising a solvent Y. The liquid composition X is to form a porous resin, and has a smaller surface tension than the liquid composition Y.

A fuel cell system component ink includes a fuel cell system component powder, a solvent including propylene carbonate (PC), and a binder including polypropylene carbonate (PPC).

An ink is provided that comprises wafer and a dye having a triazine skeleton. The ink satisfies Expression (1):

y≤−403x+3400   Expression (1)

where, in Expression (1), x is pH where x is in a range of from 4 through 8.5 (4≤x≤8.5) and y is electric conductivity (mS/cm).

An ink is provided that comprises wafer and a dye having a triazine skeleton. The ink satisfies Expression (1):

y≤−403x+3400   Expression (1)

where, in Expression (1), x is pH where x is in a range of from 4 through 8.5 (4≤x≤8.5) and y is electric conductivity (mS/cm).

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.

A method of applying a coloured coating to a decorative element such as a gemstone. The method comprises: providing an ink mixture comprising an ink and an organic carrier, the carrier comprising a polymerisable organic material; arranging the ink mixture and the decorative element in a plasma; and allowing the ink mixture to polymerise on a surface of the decorative element to form a polymerised colour coating. The polymerisable organic material may comprise a polymerisable siloxane or a polymerisable oxysilane.

A method of applying a coloured coating to a decorative element such as a gemstone. The method comprises: providing an ink mixture comprising an ink and an organic carrier, the carrier comprising a polymerisable organic material; arranging the ink mixture and the decorative element in a plasma; and allowing the ink mixture to polymerise on a surface of the decorative element to form a polymerised colour coating. The polymerisable organic material may comprise a polymerisable siloxane or a polymerisable oxysilane.

A fluid set for nail printing can include a primer composition including from 40 wt % to 90 wt % primer vehicle selected from an aqueous primer vehicle, an alcohol-based primer vehicle, or a combination thereof, and from 5 wt % to 50 wt % soluble polymer binder that is soluble in the primer vehicle. The fluid set can also include an aqueous inkjet ink composition including an ink vehicle and a colorant. The fluid set can also include a clear coat composition including a water-insoluble polymer.

An object of the present disclosure is to provide an electrically conductive ink which can form a wire or the like on a substrate by printing and has excellent adhesion to the substrate. An electrically conductive ink of the present disclosure contains Components (A), (B), (C), and (D) below, and has a ratio of Component (C) to Component (D) (Component (C)/Component (D)) of 1 or greater: Component (A): a surface-modified metal nanoparticle having a configuration in which a surface of metal nanoparticle (Component a-1) is coated with an organic protective agent (Component a-2); Component (B): a solvent; Component (C): polyvinyl acetate; and Component (D): polyvinyl acetal.