The present invention provides an inkjet ink that contains a metal complex dye, a polyoxyethylene based compound with which a number average molecular weight Mn is not less than 200, a tackifier with which a hydroxyl value is 30 to 70 mgKOH/g, a first solvent of at least one type selected from a group consisting of ketones, ethers, and esters and with which an SP value is less than 11, and a second solvent being an alcohol including at least an alcohol with 1 to 3 carbon atoms and with which the SP value is not less than 11 and is solvent based and does not contain (excludes) water, is unlikely to cause cogation, is also excellent in intermittent printing performance, and yet enables a character of excellent fixing property and abrasion resistance to be printed on a surface of a printing object with a non-absorbing property.

The present invention provides an inkjet ink that contains a metal complex dye, a polyoxyethylene based compound with which a number average molecular weight Mn is not less than 200, a tackifier with which a hydroxyl value is 30 to 70 mgKOH/g, a first solvent of at least one type selected from a group consisting of ketones, ethers, and esters and with which an SP value is less than 11, and a second solvent being an alcohol including at least an alcohol with 1 to 3 carbon atoms and with which the SP value is not less than 11 and is solvent based and does not contain (excludes) water, is unlikely to cause cogation, is also excellent in intermittent printing performance, and yet enables a character of excellent fixing property and abrasion resistance to be printed on a surface of a printing object with a non-absorbing property.

A water dispersion of gel particles, in which the gel particles having a three-dimensional crosslinked structure including at least one of Polymer Structure (1) or Polymer Structure (2), having a hydrophilic group and a polymerizable group, and including photopolymerization initiators are dispersed in water, a method of producing the water dispersion, and an image forming method using the water dispersion are provided. P.sup.1 and P.sup.2 represent a polymer chain consisting of polyester and the like and having a number-average molecular weight of 500 or greater, Z.sup.11 represents a (n.sub.1+1)-valent group, Z.sup.12 represents a (m.sub.1+1)-valent group, m.sub.1, n.sub.1 and n.sub.2 each represent an integer of 1 or greater, X.sup.1 represents a single bond, a —CH.sub.2— group, or a —NH— group, Z.sup.21 represents a (n.sub.2+1)-valent group, R.sup.1 represents a hydrocarbon group that may include a hetero atom.

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The invention relates to multilayer materials for producing packaging comprising at least two films and also a layer which is printed with a packaging printing ink, said packaging printing ink comprising a certain hyperbranched polyester containing functional groups. The invention further relates to a packaging printing ink which comprises a certain hyperbranched polyester containing functional groups, and to the use of said printing ink for producing multilayer materials.

The invention relates to multilayer materials for producing packaging comprising at least two films and also a layer which is printed with a packaging printing ink, said packaging printing ink comprising a certain hyperbranched polyester containing functional groups. The invention further relates to a packaging printing ink which comprises a certain hyperbranched polyester containing functional groups, and to the use of said printing ink for producing multilayer materials.

An ink set where a droplet of ink is ejected in an amount of not less than 100 pL and not more than 5,000 pL. The ink set includes at least two inks including an ink A and an ink B and the ink set satisfies conditions 1 to 3 as measured, on a surface of a solid image with a 100% print duty which is printed on a polyester film using the ink A and the ink B, respectively, with respect to coordinates (L*.sub.A, a*.sub.A, b*.sub.A) of the ink A and coordinates (L*.sub.B, a*.sub.B, b*.sub.B) of the ink B in CIE L*a*b* color space.

A solvent type curable ink for ink-jet printing obtained by dissolving or dispersing, in a volatile organic solvent, polyesterpolyol having a molecular weight of not more than 8000, a hydroxyl value (KOH mg/g) of 17 to 50 and a glass transition point (Tg) of not higher than 70° C., and blocked polyisocyanate. The ink is capable of forming ink-jet-printed image on the surfaces of various kinds of formed articles without burring and maintaining close adhesion upon being heated at a low temperature for a short period of time.

A solvent type curable ink for ink-jet printing obtained by dissolving or dispersing, in a volatile organic solvent, polyesterpolyol having a molecular weight of not more than 8000, a hydroxyl value (KOH mg/g) of 17 to 50 and a glass transition point (Tg) of not higher than 70° C., and blocked polyisocyanate. The ink is capable of forming ink-jet-printed image on the surfaces of various kinds of formed articles without burring and maintaining close adhesion upon being heated at a low temperature for a short period of time.

An image forming method includes: preparing a fabric to which an aggregating agent is attached; applying an aqueous ink containing a pigment, a first resin, and water onto the fabric to which the aggregating agent is attached; and applying a coating liquid containing a second resin and water onto the applied aqueous ink, wherein the second resin is aggregated by the aggregating agent, a content of the second resin in the coating liquid is smaller than a content of the first resin in the aqueous ink, and an amount of the coating liquid attached to the fabric is larger than an amount of the aqueous ink attached to the fabric.

An active energy ray curing composition contains a urethane acrylate oligomer (A) having three or more polymerizable functional groups, a polyfunctional monomer (B) having three or more polymerizable functional groups, a monofunctional monomer (C), and a surfactant (D) having a siloxane bond, wherein the urethane acrylate oligomer (A) has a glass transition temperature of 85 degrees C. or lower, wherein the urethane acrylate oligomer (A) has a weight average molecular weight of from 1,000 to 9,000, wherein the polyfunctional monomer (B) accounts for 22.0 to 60.0 percent by mass of the entire of the active energy ray curing composition.