An ink composition includes a resin-coated pigment in which at least a part of pigments is coated with a cross-linked resin, a betaine compound (1) represented by Formula (1), and water. R.sup.1 represents an alkyl group having 6 to 20 carbon atoms, R.sup.2 and R.sup.3 each independently represent a chain hydrocarbon group having 1 to 3 carbon atoms, L.sup.1 represents a single bond or a divalent linking group, L.sup.2 represents a divalent linking group, and A.sup.− represents a —SO.sub.3.sup.− group or a —COO.sup.− group.

##STR00001##

Provided herein are compositions comprising substrates that contain polymeric materials or non-magnetic, paramagnetic, or diamagnetic metal objects, and films or inks that contain ferromagnetic materials in which the films or the ferromagnetic materials are transparent. Also provided herein are methods of fabricating the substrates. Further provided herein are ferromagnetic material films containing transparent or translucent films that comprises ferromagnetic materials. The coating imparts functionality to the film such that the film is capable of being mechanically separated from the polymeric materials or non-magnetic, paramagnetic, or diamagnetic metal objects using a commercial magnetic separator. The transparent, food-safe ink composition, which can be printed using high-speed flexographic, gravure, intaglio, offset printing or pad printing consists of an ingestible magnetically susceptible pigment capable of rendering the printed template with magnetically active properties.

Provided are an ink jet ink for forming an infrared absorbing image and applications thereof, the ink jet ink including an infrared absorbing material represented by Formula (1), resin particles, a water-soluble organic solvent, a water-soluble organic compound X1, a surfactant, and water. M.sup.+ represents a proton, a monovalent alkali metal cation, or an organic cation, L.sup.1 represents a methine chain consisting of 5 or 7 methine groups, a methine group at a center of the methine chain has a substituent, R.sup.1 to R.sup.4 each independently represent a hydrogen atom or a substituent, and X represents O, S, or Se.

##STR00001##

Provided are an ink jet ink for forming an infrared absorbing image and applications thereof, the ink jet ink including an infrared absorbing material represented by Formula (1), resin particles, a water-soluble organic solvent, a water-soluble organic compound X1, a surfactant, and water. M.sup.+ represents a proton, a monovalent alkali metal cation, or an organic cation, L.sup.1 represents a methine chain consisting of 5 or 7 methine groups, a methine group at a center of the methine chain has a substituent, R.sup.1 to R.sup.4 each independently represent a hydrogen atom or a substituent, and X represents O, S, or Se.

##STR00001##

The present invention relates to a water-based ink containing at least pigment-containing water-insoluble crosslinked polymer particles (A), a polymer emulsion (B) and water, in which a water-insoluble crosslinked polymer constituting the crosslinked polymer particles (A) is obtained by subjecting a polymer that contains a constitutional unit derived from a carboxylic acid monomer having an acid value of not less than 200 mgKOH/g and a constitutional unit derived from a hydrophobic monomer, to crosslinking reaction with an epoxy compound, and a polymer constituting the polymer emulsion (B) contains a constitutional unit derived from a carboxylic acid monomer and a constitutional unit derived from a hydrophobic monomer. The water-based ink of the present invention is excellent in ejection stability and fastness of the printed characters or images while maintaining good optical density.

The present invention relates to a water-based ink containing at least pigment-containing water-insoluble crosslinked polymer particles (A), a polymer emulsion (B) and water, in which a water-insoluble crosslinked polymer constituting the crosslinked polymer particles (A) is obtained by subjecting a polymer that contains a constitutional unit derived from a carboxylic acid monomer having an acid value of not less than 200 mgKOH/g and a constitutional unit derived from a hydrophobic monomer, to crosslinking reaction with an epoxy compound, and a polymer constituting the polymer emulsion (B) contains a constitutional unit derived from a carboxylic acid monomer and a constitutional unit derived from a hydrophobic monomer. The water-based ink of the present invention is excellent in ejection stability and fastness of the printed characters or images while maintaining good optical density.

The invention relates to a process for the synthesis of two-dimensionally-layered-structure represented by the general Formula I with improved properties having the advantages of photonic band gap material. The structure of Formula I show enhanced and spectrally controlled/tunable photo-luminescence. Particularly, an ink formulation is created from the annealed powder of the Formula I using a polymer as a binder and organic solvent as a dispersant. wherein, R.sub.1=R.sub.2=R.sub.3=alkyl or alkoxy hydrocarbon X=—CONH or —NH or —COO or —CO or —SO.sub.2NH n=1 or 2 or 3

##STR00001##

The invention relates to a process for the synthesis of two-dimensionally-layered-structure represented by the general Formula I with improved properties having the advantages of photonic band gap material. The structure of Formula I show enhanced and spectrally controlled/tunable photo-luminescence. Particularly, an ink formulation is created from the annealed powder of the Formula I using a polymer as a binder and organic solvent as a dispersant. wherein, R.sub.1=R.sub.2=R.sub.3=alkyl or alkoxy hydrocarbon X=—CONH or —NH or —COO or —CO or —SO.sub.2NH n=1 or 2 or 3

##STR00001##

A primer for inkjet printing includes one or more aqueous resin(s) and hydrophobic particles having a particle size of 0.05 μm to 15 μm and a melting point of 80° C. to 100° C. The primer improves abrasive resistance properties of an inkjet ink printed on a printed material.

A primer for inkjet printing includes one or more aqueous resin(s) and hydrophobic particles having a particle size of 0.05 μm to 15 μm and a melting point of 80° C. to 100° C. The primer improves abrasive resistance properties of an inkjet ink printed on a printed material.