The inkjet ink disclosed herein includes an inorganic solid portion including an inorganic pigment and glass and a monomer component having a photocurability. The ink is configured such that a volume of the inorganic solid portion when a total volume of the inkjet ink is 100 vol % is 30 vol % or less, and a volume of the glass when the total volume of the inorganic solid portion is 100 vol % is 78 vol % or more.

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.

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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.

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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.

Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.

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

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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.

A temperature-indicator product comprising a visual indicator comprising a thermochromic colour-memory composition and comprising an electron-donating colouring organic compound (A), an electron-accepting colouring organic compound (B) and reaction medium compound (C). The visual indicator comprises a first portion comprising a first thermochromic colour-change composition in its lower temperature state and a second portion comprising a second thermochromic colour-change composition in its higher temperature state. The product is useful as a tamper-evident indicator or as a freeze indicator.