Abstract: The present invention provides an ink-jet recording sheet having a coloring agent accepting layer which contains a dispersion containing a cationic polymer with an average molecular weight of 60,000 or lower and having a sulfate ion concentration of 1.5% by mass or lower to the cationic polymer together with a water-soluble resin; an particle dispersion obtained by further granulating a pre-dispersion obtained by pre-dispersing a solution containing at least fine particles and a cationic polymer and the pre-dispersion and/or the particle dispersion is heated at room temperature for 5 hours or longer after pre-dispersion and/or after granulating; and a coating solution for coloring agent accepting layer obtained by adding a water-soluble resin to the particle dispersion.

Abstract: The present invention provides an ink-jet recording sheet having a coloring agent accepting layer which contains a dispersion containing a cationic polymer with an average molecular weight of 60,000 or lower and having a sulfate ion concentration of 1.5% by mass or lower to the cationic polymer together with a water-soluble resin; an particle dispersion obtained by further granulating a pre-dispersion obtained by pre-dispersing a solution containing at least fine particles and a cationic polymer and the pre-dispersion and/or the particle dispersion is heated at room temperature for 5 hours or longer after pre-dispersion and/or after granulating; and a coating solution for coloring agent accepting layer obtained by adding a water-soluble resin to the particle dispersion.

Abstract: The present invention provides an ink-jet recording sheet having a coloring agent accepting layer which contains a dispersion containing a cationic polymer with an average molecular weight of 60,000 or lower and having a sulfate ion concentration of 1.5% by mass or lower to the cationic polymer together with a water-soluble resin; an particle dispersion obtained by further granulating a pre-dispersion obtained by pre-dispersing a solution containing at least fine particles and a cationic polymer and the pre-dispersion and/or the particle dispersion is heated at room temperature for 5 hours or longer after pre-dispersion and/or after granulating; and a coating solution for coloring agent accepting layer obtained by adding a water-soluble resin to the particle dispersion.

Abstract: A full-color heat-sensitive recording material. At least a heat-sensitive recording layer that color-develops to yellow color; a heat-sensitive recording layer that color-develops to cyan color and a heat-sensitive recording layer that color-develops to magenta color are sequentially provided on a support in this order from the support side. All of the above-mentioned heat-sensitive recording layers contain a diazo compound and/or diazonium salt, and a coupler compound that reacts with the diazo compound and/or diazonium salt for color development.

Abstract: A lithographic printing plate precursor which comprises a support having provided thereon a layer comprising a hydrophilic medium, wherein the layer comprising a hydrophilic medium contains a hydrophobitization precursor having a hydrophilic surface and a light/heat converting agent which is hydrophilic in itself, or at least on the surface.

Abstract: The present invention provides a thermosensitive recording material comprising a support and a thermosensitive recording layer containing, as color forming components, an electron donating dye precursor encapsulated in microcapsules and an electron accepting compound, the electron accepting compound containing a salicylic acid metal salt represented by the following General Formula (1): 1

Abstract: The present invention provides an ink-jet recording sheet having a coloring agent accepting layer which contains a dispersion containing a cationic polymer with an average molecular weight of 60,000 or lower and having a sulfate ion concentration of 1.5% by mass or lower to the cationic polymer together with a water-soluble resin; an particle dispersion obtained by further granulating a pre-dispersion obtained by pre-dispersing a solution containing at least fine particles and a cationic polymer and the pre-dispersion and/or the particle dispersion is heated at room temperature for 5 hours or longer after pre-dispersion and/or after granulating; and a coating solution for coloring agent accepting layer obtained by adding a water-soluble resin to the particle dispersion.

Abstract: A full-color heat-sensitive recording material. At least a heat-sensitive recording layer that color-develops to yellow color; a heat-sensitive recording layer that color-develops to cyan color and a heat-sensitive recording layer that color-develops to magenta color are sequentially provided on a support in this order from the support side. All of the above-mentioned heat-sensitive recording layers contain a diazo compound and/or diazonium salt, and a coupler compound that reacts with the diazo compound and/or diazonium salt for color development.

Abstract: .alpha.-resorcylic acid ester derivatives useful as electron-accepting compounds for recording materials, and highly durable recording materials containing these derivatives. The .alpha.-resorcylic acid derivative is represented by the following general formula (I), ##STR1## wherein R.sub.1 represents a hydrogen atom, a halogen atom or an alkyl group, and X represents a divalent group.

Abstract: Disclosed is a novel recording material comprising an electron-providing colorless dye and an electron-accepting compound. The electron-accepting compound is represented by the following formula (1): ##STR1## wherein X represents a hydrogen atom, a halogen atom, a hydroxyl group, a carboxyl group, an alkoxycarbonyl group, an alkyl group, an alkoxy group, an allyl group, an aryl group, an aralkyl group or a cycloalkyl group; Ar represents an arylene group containing two to five benzene rings, an arylene group condensed with two to five benzene rings or a bisarylene group in which arylene groups are connected to each other via a divalent group; and R represents a hydrogen atom, an alkyl group, an aralkyl group or an aryloxyalkyl group. The invention also relates to the compounds of formula (1).

Abstract: A microcapsule-coated sheet for pressure-sensitive copying is disclosed. The microcapsule sheet comprises a base paper having thereon a layer comprising microcapsules and synthetic polymer latex having an oil swelling degree of at least 50% as a binder, and is capable of preventing the occurrence of fog during printing.