Provided is cleaning solution used for cleaning ink containing water and resin, cleaning solution containing water and solvent. Solvent contains glycol ether compound represented by general formula 1. Ink film obtained by drying the ink has swelling ratio of 20 percent or higher but 150 percent or lower, where swelling ratio is calculated by mathematical formula 1 based on masses of ink film before/after immersed in cleaning solution at 25 degrees C. for 24 hours,

R.sup.1(OR.sup.2).sub.XOR.sup.3  General formula 1

In general formula 1, R.sup.1 and R.sup.3 represent hydrogen atom or alkyl group including from 1 through 4 carbon atoms, R.sup.2 represents alkyl group including from 2 through 3 carbon atoms, and X represents integer of from 1 through 4,

Swelling ratio (%)=100×[(B−A)/A]  Mathematical formula 1

In mathematical formula 1, A represents mass of ink film before immersed, and B represents mass of ink film after immersed.

Provided is an ink containing water, a coloring material, and a copolymer, wherein the copolymer contains a structural unit represented by any one of general formulae (1a), (1b), and (1c) below and a structural unit containing an anionic group,

##STR00001##

where R.sub.1 represents a hydrogen atom or a methyl group, a represents an integer of from 6 through 10, and b represents an integer of 0 or 1,

##STR00002##

where R.sub.2 represents a hydrogen atom or a methyl group, c represents an integer of 3 or 4, and d represents an integer of 0 or 1,

##STR00003##

where R.sub.3 represents a hydrogen atom or a methyl group and e represents an integer of from 2 through 10.

Provided is an ink containing water, a coloring material, and a copolymer, wherein the copolymer contains a structural unit represented by any one of general formulae (1a), (1b), and (1c) below and a structural unit containing an anionic group,

##STR00001##

where R.sub.1 represents a hydrogen atom or a methyl group, a represents an integer of from 6 through 10, and b represents an integer of 0 or 1,

##STR00002##

where R.sub.2 represents a hydrogen atom or a methyl group, c represents an integer of 3 or 4, and d represents an integer of 0 or 1,

##STR00003##

where R.sub.3 represents a hydrogen atom or a methyl group and e represents an integer of from 2 through 10.

Provided is an active energy ray-curable inkjet ink with high productivity which has the same quality level as the conventional printing and which contains an isoindoline-based pigment having a specific electric conductance, which is measured according to DIN ISO 787/14, of 150 μS/cm or less.

Provided is an active energy ray-curable inkjet ink with high productivity which has the same quality level as the conventional printing and which contains an isoindoline-based pigment having a specific electric conductance, which is measured according to DIN ISO 787/14, of 150 μS/cm or less.

The present invention relates to a digital GLAZE ink, to the method for the preparation thereof and to the use of the digital GLAZE ink for functional and/or decorative coating of a ceramic and/or metallic material.

The present invention relates to a digital GLAZE ink, to the method for the preparation thereof and to the use of the digital GLAZE ink for functional and/or decorative coating of a ceramic and/or metallic material.

Aqueous inkjet ink compositions are useful in inkjet printing processes and can be used individually or as part of an inkjet ink set. Each aqueous inkjet ink composition has a dynamic viscosity of 5 centipoise (5 mPa-sec) or less at 25° C., and consists essentially of: (a) a polymer-dispersed pigment colorant at 0.9-6 weight %; (b) a composition consisting of compounds represented by the following Structure (I):
HO—CH.sub.2—CH.sub.2—R   (I)
wherein R is a substituted or unsubstituted phenyl group or a substituted or unsubstituted phenoxy group, at 0.5-2 weight %; (c) a water-soluble humectant, co-solvent, or both, at than or equal to 20 weight %. Each polymer-dispersed pigment colorant has a 50.sup.th percentile particle diameter of less than 70 nm and a 95.sup.th percentile particle diameter of less than 150 nm, as measured using a dynamic light scattering particle size analyzer.

Aqueous inkjet ink compositions are useful in inkjet printing processes and can be used individually or as part of an inkjet ink set. Each aqueous inkjet ink composition has a dynamic viscosity of 5 centipoise (5 mPa-sec) or less at 25° C., and consists essentially of: (a) a polymer-dispersed pigment colorant at 0.9-6 weight %; (b) a composition consisting of compounds represented by the following Structure (I):
HO—CH.sub.2—CH.sub.2—R   (I)
wherein R is a substituted or unsubstituted phenyl group or a substituted or unsubstituted phenoxy group, at 0.5-2 weight %; (c) a water-soluble humectant, co-solvent, or both, at than or equal to 20 weight %. Each polymer-dispersed pigment colorant has a 50.sup.th percentile particle diameter of less than 70 nm and a 95.sup.th percentile particle diameter of less than 150 nm, as measured using a dynamic light scattering particle size analyzer.

An ink composition, including a quantum dot; a metal catalyst; an aromatic halide compound; an ene compound including at least one C—H moiety and a carbon-carbon unsaturated bond; and optionally, a metal oxide particle, wherein the metal catalyst is a metal salt, a metal coordination complex, or a combination thereof, wherein the metal catalyst comprises a metal that is palladium, nickel, ruthenium, rhodium, iridium, iron, cobalt, chromium, copper, platinum, silver, gold, or a combination thereof.