Abstract: A recording medium comprises basic magnesium carbonate and a magnesium salt of silicic acid or of phosphorus oxy-acid. Ink-jet recording is conducted using the recording medium to obtain high image density without any problem such as indoor discoloration, white haze, fattening of letters, etc.

Abstract: A recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity. A recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity, and having a Stockigt sizing degree according to JIS-P-8122 of 0 to 15 sec. An ink jet recording method performs recording by imparting small droplets of an aqueous ink to a recording medium, wherein said aqueous ink contains an acidic dye and/or a direct dye, and said recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity. A recording medium comprises a surface layer composed mainly of aluminum oxide particles containing polyaluminum hydroxide and/or polyaluminum chloride and a lower layer having ink absorptivity. A recording medium comprises a surface layer composed mainly of aluminum oxide particles having particle sizes of 5 .mu.

Abstract: A recording medium for ink-jet recording has an ink-receiving layer comprising spherical basic magnesium carbonate, amorphous magnesium carbonate or a mixture of aluminum oxide and basic magnesium carbonate. The recording medium promises a good storage stability of recorded images, i.e. less deterioration due to indoor color changes, together with a high image density.

Abstract: A recording medium comprises a substrate, and an ink-receiving layer provided thereon wherein the ink receiving layer contains water-insoluble and amorphous basic aluminum salt. The recording medium according to claim 1, the basic aluminum salt is represented by the general formula (1) below:Al.sub.x (OH).sub.y X.sub.z (1)where x, y, and z are respectively positive integers and satisfy the relations of z=3x-y, and x/z.gtoreq.3, and X is an acid radical.

Abstract: A recording medium comprises basic magnesium carbonate and a magnesium salt of silicic acid or of phosphorus oxy-acid. Ink-jet recording is conducted using the recording medium to obtain high image density without any problem such as indoor discoloration, white haze, fattening of letters, etc.

Abstract: A recording medium having an ink-receiving layer containing a pigment and being formed on a support. The pigment is composed mainly of a pigment component having a specific surface area within the range of from 30 to 150 m.sup.2 /g and an oil absorption value within the range of 2.0 to 5.0 cc/g; and the recording medium has a roughness index K.gamma. (m1/m.sup.2) and an absorption coefficient K.alpha. (m.multidot.sec.sup.-1/2) according to the Bristow test, respectively within the ranges of 10.ltoreq.K.gamma..ltoreq.30, and 5.0.times.10.sup.-6 .ltoreq.K.alpha. .ltoreq.3.5.times.10.sup.-5. A method of color ink jet recording by application of droplets of a recording liquid onto the recording medium.

Abstract: A recording medium comprising a substrate and a non-porous ink receiving layer is provided. The ink receiving layer contains a water-insoluble polymer containing a cationic resin. The recording medium may be employed for recording by attaching droplets of a recording liquid thereon.

Abstract: A recording medium which comprises a support and an ink receiving layer containing pigments provided on the support, the pigment having a BET specific surface area of 30 to 120 m.sup.2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m.sup.2 or more as the main pigment component.

Abstract: A recording medium comprises a substrate and a ink receiving layer containing a silicon-containing type colorant and a binder provided on said substrate, wherein the recording medium exhibits discoloration .DELTA.E.sup.* ab of C. I. Food Black 2 being 20 or less according to the ozone test.

Abstract: An ink-jet recording system comprising applying droplets of water-based inks of a yellow ink, a magenta ink, a cyan ink and a black ink onto a recording medium comprising a substrate paper having a surface layer comprising a pigment and a fibrous substance of the substrate paper which are present in a mixed state, and said recording medium having a Stockigt sizing degree ranging from 0 to 15 seconds, to carry out recording, wherein;at least an ink with a dye concentration ranging from 2.5 to 4.5% by weight is used as said black ink; andthe recording is carried out in a maximum ink-adhering quantity ranging from 14 nl/mm.sup.2 to 20 nl/mm.sup.2 and in a maximum print-overlap number ranging from 2 to 2.5, is provided.

Abstract: A recording medium is provided which comprises a recording surface causing a directional diffuse reflection. The recording medium has ink receptability, and its recording surface has a specific specular gloss and specific Y.sub.10D65 value. A recording method which employs the recording medium is also provided.

Abstract: A recording medium comprising a substrate and a non-porous ink receiving layer is provided. The ink receiving layer contains a water-insoluble polymer containing a cationic resin. The recording medium may be employed for recording by attaching droplets of a recording liquid thereon.

Abstract: There are disclosed an ink-receiving composite polymer material wherein a nonvolatile organic compound is caused to penetrate into and diffuse through an ink-receiving polymer forming, from any one surface side thereof, and a recording medium for ink-jet recording wherein a nonvolatile organic compound is caused to penetrate into and diffuse through an ink-receiving layer, from the surface thereof.

Abstract: This invention relates to a method for forming an image, comprising a step of applying ink to a recording medium having a light-transmissive ink retaining layer and a light-diffusing ink transporting layer on a substrate to form an image through said ink transporting layer in said ink retaining layer and a step of transparentizing said ink transporting layer.

Abstract: A recording medium comprises an ink receiving layer provided on a substrate, wherein said ink receiving layer contains a cationically modified product of polyvinyl alcohol and a water soluble polymer having no active hydrogen.

Abstract: A recording medium is provided which comprises an ink transporting layer and an ink retaining layer. There is also provided a process for forming images on a recording medium comprising a heat or pressure-fusible ink transporting layer and an ink retaining layer, which comprises applying recording droplets to the ink transporting layer of the recording medium, and thereafter fusing the ink transporting layer to a substrate.

Abstract: A light-transmissive recording medium comprises a coating layer which has a surface electric resistance not more than 10.sup.14 .OMEGA./cm.sup.2, and has property of trapping a recording agent which is soluble and/or dispersible in an aqueous medium.

Abstract: A recording paper comprises a fibrous substrate paper on the surface of which a silicon containing type pigment and a fibrous material of the substrate paper are present in a mixed state, said recording paper having a Stockigt sizing degree ranging from 0 to 15 sec. and a basis weight ranging from 90 to 200 g/m.sup.2.

Abstract: An ink-jet recording method includes projecting droplets of ink having a Weber number of no more than 500 toward a recording medium having thereon an ink receiving layer, thereby performing recording.

Abstract: A light-transmissive recording medium is provided which has an ink receiving layer formed mainly of a water-soluble polymer and a crosslinking agent on a light-transmissive substrate, wherein the polymer constituting said ink receiving layer has a crosslinking degree within the range of from the crosslinking degree satisfying the water resistance of the ink receiving layer in JIS K 5400 to the crosslinking degree giving the ink receiving capacity of 0.2 .mu.l/cm.sup.2 in the ink receiving layer. A recording method employing the above-mentioned recording medium is also provided.