A platelet-shaped magnetic effect pigment is provided for use in a printing ink, and includes a layer construction with a magnetic layer and at least one optical functional layer, such that the magnetic layer is based on a magnetic material having a column-shaped nanostructure and the magnetic columns respectively have a largely uniform preferential magnetic direction deviating from the platelet plane.

A thermally curable ink-jet ink includes a compound having a thermally curable functional group and a gelling agent. The thermally curable ink-jet ink undergoes a sol-gel phase transition depending on temperature.

A thermally curable ink-jet ink includes a compound having a thermally curable functional group and a gelling agent. The thermally curable ink-jet ink undergoes a sol-gel phase transition depending on temperature.

An active-energy-ray-curable composition includes at least two or more kinds of polymerizable monomers (A), where a homopolymer of each of the polymerizable monomers (A) has a glass transition temperature of 80 degrees Celsius or more. The polymerizable monomers (A) have a polymerizable monomer (A1) where a homopolymer of the polymerizable monomer (A1) has an SP value of 10.8 or more but 12.2 or less determined by Fedors method. An amount of the polymerizable monomer (A1) is 3% by mass or more but 20% by mass or less relative to a total amount of the active-energy-ray-curable composition.

An active-energy-ray-curable composition includes at least two or more kinds of polymerizable monomers (A), where a homopolymer of each of the polymerizable monomers (A) has a glass transition temperature of 80 degrees Celsius or more. The polymerizable monomers (A) have a polymerizable monomer (A1) where a homopolymer of the polymerizable monomer (A1) has an SP value of 10.8 or more but 12.2 or less determined by Fedors method. An amount of the polymerizable monomer (A1) is 3% by mass or more but 20% by mass or less relative to a total amount of the active-energy-ray-curable composition.

A liquid photosensitive ink composition capable of forming a cured product with a high refractive index and a high transparency, a cured product of the photosensitive ink composition, a display panel having a film consisting of the cured product, and a method for producing the cured product using the photosensitive ink composition. In a photosensitive ink composition including a photopolymerizable compound, and a photopolymerization initiator, a sulfide compound having specific structure and a (meth)acrylate compound having specific structure are used as the photopolymerizable compound, and a phosphine oxide compound and an oxime ester compound are used as the photopolymerization initiator.

Provided are an ink jet recording ink containing a squarylium dye represented by Formula 1, polymerizable compounds, a dispersant, and a synergist having at least one group selected from the group consisting of a carboxy group and a sulfo group and at least one ring selected from the group consisting of an aromatic ring and a heteroaromatic ring, and an image recording method:

##STR00001## in Formula 1, a ring A and a ring B each independently represent an aromatic ring or a heteroaromatic ring, X.sup.A and X.sup.B each independently represent a monovalent substituent, G.sup.A and G.sup.B each independently represent a monovalent substituent, kA represents an integer of 0 to nA, and kB represents an integer of 0 to nB. nA represents the maximum number of G.sup.As capable of being bonded to the ring A, and nB represents the maximum number of G.sup.Bs capable of being bonded to the ring B.

Provided are an ink jet recording ink containing a squarylium dye represented by Formula 1, polymerizable compounds, a dispersant, and a synergist having at least one group selected from the group consisting of a carboxy group and a sulfo group and at least one ring selected from the group consisting of an aromatic ring and a heteroaromatic ring, and an image recording method:

##STR00001## in Formula 1, a ring A and a ring B each independently represent an aromatic ring or a heteroaromatic ring, X.sup.A and X.sup.B each independently represent a monovalent substituent, G.sup.A and G.sup.B each independently represent a monovalent substituent, kA represents an integer of 0 to nA, and kB represents an integer of 0 to nB. nA represents the maximum number of G.sup.As capable of being bonded to the ring A, and nB represents the maximum number of G.sup.Bs capable of being bonded to the ring B.

Provided is an active energy ray-curable aqueous ink which contains water and a curable substance and curable by an active energy ray. The curable substance contains a bifunctional polymerizable monomer represented by the following General Formula (1):

##STR00001## wherein, R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 is a divalent saturated hydrocarbon group having 1 to 5 carbon atoms and L is a divalent saturated hydrocarbon group which may contain an ether bond, an amide bond, a carbonyl bond, a sulfone bond or a sulfonamide bond.

The active energy ray-curable liquid composition according to the present disclosure is an active energy ray-curable liquid composition that contains water and a curable substance and is curable with an active energy ray, in which the curable substance contains a monofunctional polymerizable monomer having a structure represented by the Formula (1);

##STR00001##

in Formula (1), R1 represents a hydrogen atom or a saturated hydrocarbon group, R2 represents a saturated hydrocarbon group that has at least one of a hydroxyl group or an amide bond and may contain a heteroatom, R3 represents a hydrogen atom or a methyl group, R1 and R2 may be bonded together to form an aliphatic heterocycle together with a nitrogen atom substituted with R1 and R2 in a case where R1 represents a saturated hydrocarbon group, and a total number of carbon atoms of the saturated hydrocarbon groups represented by R1 and R2 is 5 or more.