A recording medium includes a substrate and an ink-receiving layer, wherein the ink-receiving layer contains an inorganic particle and a binder, and does not contain any water-soluble resin or contains a water-soluble resin such that a ratio of the content of the water-soluble resin to the content of the binder in the ink-receiving layer is 20% by mass or less, the binder contains at least one component selected from the group consisting of acrylic resins, polycarbonate-modified urethane resins, and polyether-modified urethane resins, and, for the recording medium, a ratio of a total pore volume in a pore radius range of 7 nm or more and 20 nm or less to a total pore volume in a pore radius range of 0 nm or more and 20 nm or less is 25% by volume or less.

The invention relates to a thermal sublimation paper which can be printed with inks containing a sublimatable dye, in particular ink-jet inks, in which paper a hydrophilic thermal transfer layer to be printed is formed on a porous base paper. Thermoplastic particles with an average particle size of between 0.3 and 5 μm and a melting point of between 35° C. and 190° C. are present in the thermal transfer layer. This thermal sublimation paper can be advantageously produced as follows: an aqueous coating slip is applied to a porous base paper having a Cobb value of between 55 and 150 g/m.sup.2, in particular between 70 and 150 g/m.sup.2, in a paper-making or coating machine, online or offline, said aqueous coating slip containing thermoplastic particles and constituents suitable for forming a hydrophilic thermal transfer layer, and a drying step is subsequently carried out in order to obtain the thermal sublimation paper. The thermal sublimation paper can be used advantageously to mint flat materials, in particular films and textiles.

A pre-treatment coating composition can include an evaporable liquid vehicle and a pre-treatment coating matrix carried by the evaporable liquid vehicle. The pre-treatment coating matrix in this example can include from 30 wt % to 70 wt % multivalent organic salt including a multivalent metal acetate or a multivalent metal propionate, from 5 wt % to 30 wt % dispersed polymeric binder having a weight average molecular weight from 20,000 Mw to 1,000,000 Mw, from 0.5 wt % to 8 wt % of a high molecular weight polyvinyl alcohol binder, and from 10 wt % to 30 wt % of a low molecular weight polyvinyl alcohol binder. The low molecular weight polyvinyl alcohol binder and the high molecular weight polyvinyl alcohol binder in this example can be present in the pre-treatment coating matrix at a 3:1 to 15:1 weight ratio. Weight percentages in this example are based on dry weight of the pre-treatment coating matrix.

A recording medium, including: an ink-receiving layer configured to receive an ink for inkjet recording; and a transparent sheet having a total luminous transmittance of 50% or more, wherein the recoding medium has a layered structure in which the transparent sheet and the ink-receiving layer are sequentially stacked, and the ink-receiving layer includes a gap-absorption-type ink-receiving layer including a composition including at least inorganic fine particles and polyvinyl alcohol having a weight-average polymerization degree of 2,000 or more and 5,000 or less and a saponification degree of 70 mol % or more and 90 mol % or less.

The present invention provides coating composition for forming a toner receptive coating on a substrate containing a polymer comprising: (a) a N-vinyl amide monomer, (b) a vinyl acetate monomer, (c) a substituted or unsubstituted monomer comprising a cyclic ether, and (d) a solvent. The coating compositions may further comprise a (e) non-reactive hydrophobic monomer. The invention also provides substrates coated with the toner receptive coatings. ##STR00001##

There is disclosed a formulation for use with an intermediate transfer member of an indirect printing system, including: (a) a carrier liquid: (b) a positively chargeable polymeric chemical agent having amine functional groups; and (c) a resolubilizing agent selected to improve resolubilization of said chemical agent. Method of use thereof is also provided.

The present invention relates to a cationic coating formulation, which contains beside water a specific anionic ultrafine ground calcium carbonate, a non-ionic polyvinyl alcohol, a water-soluble salt of a divalent metal ion, a dispersing agent and a cationic polymer. Said coating formulation according to the present invention can be used for manufacturing a digital print medium, preferably an inkjet print medium.

A recording medium including a substrate and an ink-receiving layer provided on the substrate. The ink-receiving layer contains a silica particle and a water-insoluble resin. The silica particle satisfies the following expressions 1 and 2 when the average pore radius thereof determined by the BJH method is taken as r (nm), and the oil absorption thereof measured by the linseed oil droplet method is taken as V (ml/100 g):

r≦5.0 (nm)  expression 1:

V/r≧80 ((ml/100 g)/nm).  expression 2:

A recording medium including a substrate and an ink-receiving layer. The ink-receiving layer contains an inorganic particle, a water-insoluble resin and at least one additive selected from the group consisting of a benzotriazole ultraviolet absorber and a hindered amine photostabilizer. The average pore radius of the inorganic particle is 5.0 nm or less.

A recording medium including a substrate and an ink-receiving layer. The ink-receiving layer contains an inorganic particle, a binder and at least one surfactant. The binder contains at least one resin selected from the group consisting of an acrylic resin, a polycarbonate-modified urethane resin and a polyether-modified urethane resin. The at least one surfactant comprises an acetylene-based surfactant. The contact angle of water to a surface of the ink-receiving layer at 60 seconds after contact of the water with the surface of the ink-receiving layer is 40 degrees or more to 80 degrees or less.