Abstract: To provide a recording medium in which the ink absorbability and the color development properties of an image to be obtained are high and in which cracking in an ink receiving layer is sufficiently suppressed. A recording medium contains a base material and an ink receiving layer containing inorganic particles and a binder, in which the inorganic particles have an organosilicon structure having a quaternary ammonium group, an imino group or a substituted imino group, and a hydroxyl group.

Abstract: A recording medium includes a substrate and an ink-receiving layer as the top layer. The ink-receiving layer contains inorganic particles. The inorganic particles contain cationized colloidal silica, alumina hydrate, and fumed alumina. A content of the cationized colloidal silica is 5% or more by mass and 25% or less by mass based on a content of the inorganic particles. The mass ratio of the alumina hydrate to the fumed alumina (alumina hydrate content:fumed alumina content) is from 95:5 to 55:45.

Abstract: A recording medium includes a substrate, and a first and a second ink receiving layer over the substrate in this order from the side close to the substrate. The first ink receiving layer contains fumed silica, alumina, and zirconium compound. In the first ink receiving layer, the mass ratio of the fumed silica to the alumina is in the range of 40:60 to 60:40. The zirconium compound content in the first ink receiving layer is in the range of 0.1% by mass to 3.0% by mass relative to the total mass of the first ink receiving layer. The second ink receiving layer contains inorganic particles including at least one of fumed silica and alumina. In the second ink receiving layer, the fumed silica or the alumina accounts for 80% by mass or more of the inorganic particles in the second ink receiving layer.

Abstract: To provide a recording medium in which the ink absorbability and the color development properties of an image to be obtained are high and in which cracking in an ink receiving layer is sufficiently suppressed. A recording medium contains a base material and an ink receiving layer containing inorganic particles and a binder, in which the inorganic particles have an organosilicon structure having a quaternary ammonium group, an imino group or a substituted imino group, and a hydroxyl group.

Abstract: A recording medium includes a substrate and an ink-receiving layer as the top layer. The ink-receiving layer contains inorganic particles. The inorganic particles contain cationized colloidal silica, alumina hydrate, and fumed alumina. A content of the cationized colloidal silica is 5% or more by mass and 25% or less by mass based on a content of the inorganic particles. The mass ratio of the alumina hydrate to the fumed alumina (alumina hydrate content:fumed alumina content) is from 95:5 to 55:45.

Abstract: A recording medium includes a substrate, and a first and a second ink receiving layer over the substrate in this order from the side close to the substrate. The first ink receiving layer contains fumed silica, alumina, and zirconium compound. In the first ink receiving layer, the mass ratio of the fumed silica to the alumina is in the range of 40:60 to 60:40. The zirconium compound content in the first ink receiving layer is in the range of 0.1% by mass to 3.0% by mass relative to the total mass of the first ink receiving layer. The second ink receiving layer contains inorganic particles including at least one of fumed silica and alumina. In the second ink receiving layer, the fumed silica or the alumina accounts for 80% by mass or more of the inorganic particles in the second ink receiving layer.

Abstract: A recording medium includes a substrate, a first ink receiving layer and a second ink receiving layer in that order. The first ink receiving layer contains at least one inorganic pigment selected from the group consisting of alumina, hydrated alumina and fumed silica, polyvinyl alcohol, and a boric acid compound. The second ink receiving layer contains fumed silica, particles having an average particle size in a specific range, polyvinyl alcohol, and a boric acid compound. The boric acid compound content in the first ink receiving layer is in a predetermined range, and the boric acid compound content in the second ink receiving layer is in a predetermined range. The particle content in the second ink receiving layer is in a predetermined range.

Abstract: A recording medium that includes a base material and an ink-receiving layer. The ink-receiving layer includes an inorganic particle including a structure represented by General Formula (1) and a binder.

Abstract: A recording medium includes, in this order, a substrate, a first ink receiving layer containing inorganic particles, polyvinyl alcohol and a boric acid compound, and a resin layer containing a resin. In the first ink receiving layer, hydrated alumina accounts for 70% by mass or more of the inorganic particles. In the recording medium, the ratio of the boric acid compound content to the polyvinyl alcohol content is 30% by mass or more.

Abstract: A recording medium that includes a base material and an ink-receiving layer. The ink-receiving layer includes an inorganic particle including a structure represented by General Formula (1) and a structure represented by General Formula (2) and a binder.

Abstract: A recording medium includes, in this order, a substrate, a first ink receiving layer containing inorganic particles, polyvinyl alcohol and a boric acid compound, and a resin layer containing a resin. In the first ink receiving layer, hydrated alumina accounts for 70% by mass or more of the inorganic particles. In the recording medium, the ratio of the boric acid compound content to the polyvinyl alcohol content is 30% by mass or more.

Abstract: A recording medium includes a substrate, a first ink receiving layer and a second ink receiving layer in that order. The first ink receiving layer contains at least one inorganic pigment selected from the group consisting of alumina, hydrated alumina and fumed silica, polyvinyl alcohol, and a boric acid compound. The second ink receiving layer contains fumed silica, particles having an average particle size in a specific range, polyvinyl alcohol, and a boric acid compound. The boric acid compound content in the first ink receiving layer is in a predetermined range, and the boric acid compound content in the second ink receiving layer is in a predetermined range. The particle content in the second ink receiving layer is in a predetermined range.

Abstract: A recording medium that includes a base material and an ink-receiving layer. The ink-receiving layer includes an inorganic particle including a structure represented by General Formula (1) and a structure represented by General Formula (2) and a binder.

Abstract: A recording medium that includes a base material and an ink-receiving layer. The ink-receiving layer includes an inorganic particle including a structure represented by General Formula (1) and a binder.

Abstract: A recording medium includes a base material and an ink-receiving layer. The ink-receiving layer contains inorganic particles, a binder, and a compound A. The compound A contains a unit derived from a compound represented by General Formula (1) and a unit derived from at least one compound selected from compounds represented by General Formula (2) and compounds represented by General Formula (3).

Abstract: A recording medium has a backcoat layer, a substrate, and an ink-receiving layer in this order. The backcoat layer contains a first inorganic particle, a second inorganic particle, and a binder. The first inorganic particle has an average aspect ratio of 5 or more and an average diameter of 0.2 ?m or more and 10.0 ?m or less. The second inorganic particle has an average aspect ratio of less than 5 and an average diameter of 0.1 ?m or more and 0.9 ?m or less. The mass ratio of the first inorganic particle content to the second inorganic particle content of the backcoat layer is 30/70 or more and 70/30 or less.

Abstract: A recording medium has a backcoat layer, a substrate, and an ink-receiving layer in this order. The backcoat layer contains a first inorganic particle, a second inorganic particle, and a binder. The first inorganic particle has an average aspect ratio of 5 or more and an average diameter of 0.2 ?m or more and 10.0 ?m or less. The second inorganic particle has an average aspect ratio of less than 5 and an average diameter of 0.1 ?m or more and 0.9 ?m or less. The mass ratio of the first inorganic particle content to the second inorganic particle content of the backcoat layer is 30/70 or more and 70/30 or less.

Abstract: A recording medium includes, in this order, a substrate, a first ink receiving layer containing inorganic particles, polyvinyl alcohol and a boric acid compound, and a resin layer containing a resin. In the first ink receiving layer, hydrated alumina accounts for 70% by mass or more of the inorganic particles. In the recording medium, the ratio of the boric acid compound content to the polyvinyl alcohol content is 30% by mass or more.

Abstract: A recording medium includes, in sequence, a support; a first ink-receiving layer including an inorganic particle, a water-soluble polymer having a hydroxyl group, a water-soluble polymer not having a hydroxyl group, and a boric acid compound; and a second ink-receiving layer including an inorganic particle, a water-soluble polymer having a hydroxyl group, and a boric acid compound. The second ink-receiving layer does not include the water-soluble polymer not having the hydroxyl group, or the second ink-receiving layer includes the water-soluble polymer not having the hydroxyl group but the content of the water-soluble polymer not having the hydroxyl group relative to that of the inorganic particle in the second ink-receiving layer is smaller than the content of the water-soluble polymer not having the hydroxyl group relative to that of the inorganic particle in the first ink-receiving layer.

Abstract: A recording medium includes, in sequence, a support, a first ink-receiving layer containing a first inorganic particle and a first binder, a second ink-receiving layer containing a second inorganic particle and a second binder, and a third ink-receiving layer which is an outermost surface layer and contains a third inorganic particle, a third binder, and a particle different from the third inorganic particle and having an average secondary particle size of 1.0 to 20.0 ?m. A mass ratio of a content of the first binder to a content of the first inorganic particle is larger than a mass ratio of a content of the second binder to a content of the second inorganic particle. A content of the particle having the specific average secondary particle size is 0.5% by mass or more with respect to a content of the third inorganic particle.