JP2004106327A5 - - Google Patents

Claims (10)

On at least one surface of the base sheet, the ink-jet recording sheet provided with an ink receiving layer of at least one layer, the ink receiving layer, and an organic polyisocyanate, a high molecular weight hydrophilic polyol and / or polyamine, at least one active hydrogen-containing group and a compound having at least one tertiary amino group in the same molecule, a polysiloxane compound having at least one active hydrogen-containing group, and the hydrophilic segment is obtained by reaction An ink jet recording sheet comprising a composition comprising a hydrophilic polyurethane-based resin having a tertiary amino group and a polysiloxane segment and fine particle alumina.   The inkjet recording sheet according to claim 1, wherein the content of the particulate alumina is 5 to 95% by weight based on the hydrophilic polyurethane resin.   The fine particle alumina is obtained by using a mixture of high molecular weight hydrophilic polyol or polyamine and fine particle alumina as at least part of the high molecular weight hydrophilic polyol or polyamine when synthesizing the hydrophilic polyurethane resin. The ink jet recording sheet according to claim 1, which is contained in a water-soluble polyurethane resin.   The inkjet recording sheet according to claim 1, wherein the fine particle alumina has an average particle diameter of 1 to 300 nm. The content of the hydrophilic segment及 beauty polysiloxane segments in the hydrophilic polyurethane resin is, ink-jet recording sheet according to claim 1 which is 30 to 80 wt%及 beauty 0.1 to 10% by weight, respectively . On at least one surface of a substrate sheet, a method for producing an ink jet recording sheet provided with an ink receiving layer of at least one layer, the ink receiving layer, and an organic polyisocyanate, a high molecular weight hydrophilic polyol and / or polyamine, at least one active hydrogen-containing group and a compound having at least one tertiary amino group in the same molecule, a polysiloxane compound having at least one active hydrogen-containing group, a hydrophilic by reaction When synthesizing a hydrophilic polyurethane-based resin having a segment, a tertiary amino group, and a polysiloxane segment, the high molecular weight hydrophilic polyol / or polyamine and fine particle alumina are used as at least part of the high molecular weight hydrophilic polyol / or polyamine. Alumina-dispersed hydrophilic polyurethane using a mixture of Ink-jet recording method of manufacturing a sheet, which comprises forming a resin composition.   7. The method for producing an ink jet recording sheet according to claim 6, wherein the mixture is obtained by removing a dispersion solvent of alumina sol from a mixture of high molecular weight hydrophilic polyol / or polyamine and alumina sol.   The method for producing an ink jet recording sheet according to claim 6, wherein the content of alumina in the mixture is 5 to 95% by weight with respect to the hydrophilic polyurethane resin.   The method for producing an ink jet recording sheet according to claim 6, wherein the fine particle alumina has an average particle diameter of 1 to 300 nm. The content of the hydrophilic segment及 beauty polysiloxane segments in the hydrophilic polyurethane resin is, ink-jet recording sheet according to claim 6 which is 30 to 80 wt%及 beauty 0.1 to 10% by weight, respectively Manufacturing method.