Abstract: There is provided a serum- or plasma-separating composition capable of maintaining stable blood separation performance over a prolonged period even if subjected to a sterilization step during production or to prolonged storage. The serum- or plasma-separating composition comprises a resin composition having fluidity at normal temperature, a silica fine powder, and an amide-based compound represented by the following formula (1): wherein R3 is an alkyl group having 1 to 4 carbon atoms; and R1 and R2 are independently a hydrogen atom or a linear or branched alkyl group having 1 to 8 carbon atoms.

Abstract: The present disclosure is drawn to coated media substrates, as well as related systems and methods. In one example, a coated media substrate for inkjet ink printing can comprise an ink-receiving layer coated on at least one side of a substrate, and can be formulated for accepting an inkjet ink composition. The ink-receiving layer can comprise an optical brightening agent, an organic acid salt, a binder, a pigment, and a low-molecular weight polymeric carrier having a weighted average molecular weight less than 50,000 Mw.

Abstract: A recording medium has a base, a first ink receiving layer, and a second ink receiving layer that is the outermost layer in the stated order, in which the first ink receiving layer is a layer adjacent to the second ink receiving layer, the first ink receiving layer contains fumed silica, the second ink receiving layer contains colloidal silica and resin particles, and the area in which the colloidal silica exists in the recording medium surface is 10% or more and 70% or less.

Abstract: Disclosed is a printable paper comprising a water-resistant support having two optionally subbed sides and a single layer on at least one of said optionally subbed sides, wherein said single layer has no substantial compositional variation, has a layer thickness of at least 3 ?m, a pore volume of at least 1.2 mL/m2 and comprises at least one porous pigment. Also disclosed is a process for producing such a printable paper and use thereof in printing.

Abstract: A recording medium includes a base and an ink receiving layer. The ink receiving layer contains inorganic particles. The surface of the recording medium has an arithmetic mean roughness of 0.8 ?m or more in accordance with JIS B 0601:2001. The surface of the recording medium includes openings having a width of 30 ?m or less and a length of 500 ?m or less. The number of the openings is 5 or more and 30 or less per 1 mm2 of the surface of the recording medium.

Abstract: A print medium includes a first layer on at least one of a first side and a second side of a substrate and a second layer. The first layer consists essentially of at least 80% by dry weight of one or more particulate inorganic pigments (PIPs). A combination of a particle size and a coat weight of the first layer on the substrate yields an effective pore size of the first layer in a range of about 0.008 to about 0.5 microns. For two or more PIPs in the first layer, the average particle size of one of the PIPs differs by no more than about 50% from the average particle size of another of the PIPs. The second layer is on top of the first layer and includes a particulate inorganic pigment (PIP) having an average particle size of about 0.1 to about 2 microns.

Abstract: Support materials for printing electrically conductive structures by means of inkjet printing with inks which contain conductive particles lead to low resistances for the printed structures without thermal post-treatment when they contain a microporous layer with a mean pore size of less than 100 nm as an outer layer.

Abstract: A printed article with metallic luster and gold-like appearance that encompasses a printable media on which a printed feature has been formed with an ink composition. The ink composition contains iron oxide pigment particles that have an average particle 5 size in the range of about 3 to about 300 nm and the printable media contains a bottom supporting substrate and an ink-absorbing layer with pore diameters that are smaller than the average size of the iron oxide pigment particles. In such printed article, the ink composition forms onto the printable media a printed feature that has a thickness that is below about 300 nm.

Abstract: A metalized printable recording medium including a porous metallic reflective top layer, a porous ink-absorbing layer and a bottom supporting substrate. Method to form such printable recording medium and method to form printed images on the metalized printable recording medium are also disclosed.

Abstract: A print medium includes a first layer on at least one of a first side and a second side of a substrate and a second layer. The first layer consists essentially of at least 80% by dry weight of one or more particulate inorganic pigments (PIPs). A combination of a particle size and a coat weight of the first layer on the substrate yields an effective pore size of the first layer in a range of about 0.008 to about 0.5 microns. For two or more PIPs in the first layer, the average particle size of one of the PIPs differs by no more than about 50% from the average particle size of another of the PIPs. The second layer is on top of the first layer and includes a particulate inorganic pigment (PIP) having an average particle size of about 0.1 to about 2 microns.

Abstract: A printed article with optically variable properties that includes a printable media on which a printed feature has been formed with an ink composition. Said ink composition contains metal oxide particles that have an average particle size in the range of about 3 to about 180 nm and that have a refractive index superior or equal to 1.2. The printable media contains a bottom supporting substrate, an ink-absorbing layer and a metallized top layer with pore diameters that are smaller than the size of the metal oxide particles, and the ink composition forms, onto the printable media, a printed feature that exhibits optically variable properties.

Abstract: A method for producing printed articles that encompasses providing a first ink composition that contains metal oxide particles with an average particle size in the range of about 3 to about 300 nm; providing a second ink composition that contains colored pigments dispersed in an ink vehicle; providing a printable media having a bottom supporting substrate and an ink-absorbing layer with pore diameters that are smaller than the size of the metal oxide pigment particles and colored pigments; and sequentially applying, on the same print area, the first and the second ink compositions onto said printable media. Also disclosed herein are the printed articles obtained according to the present method.

Abstract: A printed article with metallic appearance that includes a printable media on which a printed feature is formed with an ink composition. Said ink composition contains a dispersion of metal or metal oxide particles having an average particle size in the range of about 3 to about 180 nm. The media is a textured printable media containing a supporting substrate and an ink-absorbing layer with pore diameters that are smaller than the size of the metal or metal oxide particles. Said ink composition forms, onto the textured printable media, a printed feature that exhibits a metallic appearance.

Abstract: A recording medium includes a base and an ink receiving layer. The ink receiving layer contains inorganic particles. The surface of the recording medium has an arithmetic mean roughness of 0.8 ?m or more in accordance with JIS B 0601:2001. The surface of the recording medium includes openings having a width of 30 ?m or less and a length of 500 ?m or less. The number of the openings is 5 or more and 30 or less per 1 mm2 of the surface of the recording medium.

Abstract: An ink jet recording medium including a substrate and an ink receiving layer provided on the substrate and composed of two or more layers of at least an upper layer and a lower layer. The ink receiving layer contains polyvinyl alcohol in an amount of 12.7% by mass or more based on the total mass of the ink receiving layer. The upper layer is a layer most distant from the substrate, contains a pigment and polyvinyl alcohol, the pigment containing 90% by mass or more of alumina hydrate, and has a thickness of 3.0-10.0 ?m. The lower layer is positioned just under the upper layer, contains a pigment and polyvinyl alcohol, the pigment containing 20% by mass or more of silica, and has a thickness 2.5-10 times larger than that of the upper layer and an average pore radius 0.90-1.30 times larger than that of the upper layer.

Abstract: An inkjet recording medium and a coating composition for forming an inkjet recording medium. In accordance with one aspect of the present invention, an inkjet recording medium is disclosed comprising an inkjet-receptive coating on a paper substrate. The inkjet-receptive coating contains a synergistic combination of pigments and binder such that the inkjet recording medium exhibits improved inkjet print properties, particularly when printed with a high speed inkjet printer using pigmented inks. In accordance with certain aspects of the present invention, the inkjet recording medium further comprises a top coat of a multivalent metal salt which further enhances image quality of the inkjet printing.

Abstract: A recording material printable with an ink jet printer and having a gel layer for that purpose.

Abstract: A recording medium includes a substrate and two or more ink receiving layers on each of a first surface and a second surface of the substrate. The ink receiving layers each contain a pigment and a binder. A1, A2, B1, and B2 (nm) satisfy the relationships (1), (2), and (3), where A1 is the peak of the pore radius distribution of the outermost ink receiving layer on the first surface side, A2 is the peak of the pore radius distribution of the ink receiving layer adjacent to the outermost layer, B1 is the peak of the pore radius distribution of the outermost ink receiving layer on the second surface side, and B2 is the peak of the pore radius distribution of the ink receiving layer adjacent to the outermost layer. The arithmetic average roughness Ra specified in JIS B 0601 of each of the outermost ink receiving layers is 0.50 ?m or more.

Abstract: A recording medium comprising a substrate and at least two porous ink receiving layers provided thereon of which a lower layer, second distant from the substrate, is arranged on the substrate side of an upper layer, most distant from the substrate. Pore distribution curves of the upper and lower layers respectively have one peak and two peaks. When pore radii giving the one peak and the two peaks are respectively regarded as R1 and R2, R3 where R2 is smaller than R3, R1 is 8 to 11 nm, R2 is 5 nm or more, R2 is smaller than R1, a difference between R1 and R2 is 2 nm or more, R3 is not less than R1, a difference between R3 and R1 is 3 nm or less. When pore volumes at the pore radii of R2 and R3 are respectively VR2 and VR3, a proportion VR2/VR3 is 0.8 to 2.4.

Abstract: The specification pertains to a single or multiple coated printing sheet in particular but not exclusively for sheet-fed offset printing with an image receptive coating layer on a paper substrate. Unexpectedly short converting times and times until reprinting can be achieved by choosing a coating, in which the image receptive coating layer comprises a top layer and/or at least one second layer below said top layer, said top and/or second layer comprising a pigment part, wherein this pigment part is composed of 1-95 preferably of 80-95 parts in dry weight of a fine particulate carbonate and/or of a fine particulate kaolin or clay and 1-100, preferably 6 to 25 parts in dry weight of a fine particulate silica, and a binder part, wherein this binder part is composed of 5-20 parts in dry weight of binder and less than 4 parts in dry weight of additives. Furthermore methods for making such a printing sheet and uses of such a printing sheet are disclosed.

Abstract: The present invention is drawn to a print medium and a method of preparing the same. The print medium can include a media substrate, a porous ink-absorbing layer coated on the media substrate, and a porous ink-receiving layer coated on the porous ink-absorbing layer. The porous ink-absorbing layer can include semi-metal oxide or metal oxide particulates and a first binder, and the porous ink-receiving layer can include organosilane-functionalized semi-metal oxide or metal oxide particulates and a second binder.

Abstract: The present invention relates to a porous membrane obtainable by polymerizing at least one type of curable epoxyacrylate monomer that is soluble in a solvent wherein at least 50 wt % of said solvent is water. The invention further relates to image recording materials, in which these porous membranes are used.

Abstract: A web (12) has resin coat layers (46, 47) on both surfaces of a base material (45), and one of the resin coat layer (47) is covered with an ink receiving layer (48). The web (12) is slit into narrow recording papers (14) by a slitter (13). This slitter (13) includes an upper rotary blade (21) having a sharp cutting edge, and a lower rotary blade (19) having a support (61) for the ink receiving layer (48) . After the slitting with the slitter (13), a cut face has a cross section in which one of the base material (45), the resin coat layer (47) and the ink receiving layer (47) projects outward relative to the resin coat layer (46).

Abstract: An ink jet recording medium comprising a substrate and an ink receiving layer which is provided on at least one surface of the substrate and contains inorganic fine particles having an average secondary particle size of 1-4 ?m as measured by a Coulter counter method in an amount of 0.2-2.0 g/m2 in terms of solid content mass. The ink receiving layer satisfies the following conditions with respect to a pore distribution curve as determined by a nitrogen adsorption method: (1) total pore volume in a pore size range of 10-30 nm is 0.25 ml/g or more, (2) total pore volume in a pore size range of 30-70 nm is 0.1 ml/g or more, and (3) volume ratio of the total pore volume in the pore size range of 10-30 nm to the total pore volume in the pore size range of 30-70 nm is from 1:0.4 to 1:1.

Abstract: An ink jet recording sheet is provided that delivers a photoparity image when printed with ink jet printer. The recording sheet comprises a two-layer coating. The bottom layer comprises amorphous silica and the top layer comprises spherical colloidal silica. Both silicas are rendered cationic. The recording sheet provides fast dry time, excellent image quality and superior water resistance and handle ability.

Abstract: An inkjet recording element comprising a support extrusion coated with a porous hydrophilic material. The composition comprises a hydrophilic thermoplastic polymer and blends thereof. Also disclosed are methods for making and a method of printing on the inkjet recording element.

Abstract: A set for ink jet recording comprising an ink jet recording medium containing a water-soluble aluminum compound and a sulfoxide compound in an ink receiving layer on a support, and an ink containing a coloring matter represented by the following formula (I), and an ink jet recording method using the same: wherein G is a heterocyclic group; n is an integer of 1 to 3; when n is 1, R, X, Y, Z, Q and G each represent a monovalent group; when n is 2, R, X, Y, Z, Q and G each represent a monovalent or divalent substituent, and at least one of them is a divalent substituent; and, when n is 3, R, X, Y, Z, Q and G each represent a monovalent, divalent or trivalent substituent, and at least two of them are a divalent substituent, or at least one of them represents a trivalent substituent.

Abstract: A recording sheet with an ink-receptive layer which can be used not only for dye type inks but also for pigment type inks is provided. Also provided is a coating liquid for forming an ink-receptive layer. The recording sheet with an ink-receptive layer includes a substrate sheet and an ink-receptive layer formed thereon, wherein the ink-receptive layer includes (i) fibrous crystalline particles on surfaces of which a cationic hydrated metal compound is supported and (ii) a binder. The fibrous crystalline particles have an average fiber diameter (D) of 0.1 to 2 ?m, an average fiber length (L) of 1 to 200 ?m and a ratio (aspect ratio) of an average fiber length (L) to an average fiber diameter (D) of 5 to 500.

Abstract: A recording paper containing pulp fibers and filler as main components and containing at least a heterocyclic carboxylic acid and a water-soluble polymer in the surface of the recording paper, wherein the surface contains at least one kind of cationic substance selected from the group consisting of a cationic organic molecule and a metal salt containing a metal cation of valency two or greater.

Abstract: An inkjet recording medium comprising a support and an ink-receiving layer on a support, wherein the hardness of the ink-receiving layer is 9.0 or more; and the D/I value of the ink-receiving layer defined by ASTM E430 is 40 or more, or an inkjet recording medium comprising a support and an ink-receiving layer on a support, wherein the hardness of the ink-receiving layer is 9.0 or more; and the center surface average roughness (SRa) of the ink-receiving layer is 0.1 ?m or less when measured under the condition of cutoff of 0.02 to 0.5 mm, and 0.4 ?m or less when measured under the condition of cutoff of 1 to 3 mm.

Abstract: Papers are provided which exhibit rapid ink setting and ink drying. These papers include a topcoat layer, and a penultimate coating layer that draws ink through the topcoat layer. In some implementations, the penultimate coating layer includes a high internal pore volume filler, and/or has a fine external pigment pore structure.

Abstract: A porous polymeric ink-jet receiver prepared by generating an emulsion comprising a first phase having a first carrier fluid and a second phase having a second carrier fluid, said first and second carrier fluids being immiscible; coating the emulsion onto a support; carrying out a first treatment to at least one component of the first phase to form and/or maintain a skeletal structure of the treated at least one component of the first phase; and carrying out a second treatment to the second phase to substantially remove the carrier fluid thereby generating a large capacity porous structure defined by the skeletal structure is capable of rapid uptake of large quantities of ink, especially when using a high internal phase water-in-oil emulsion.

Abstract: Formulations comprising novel porous metal oxide particles and binder are particularly suitable for ink receptive coatings, e.g., for ink jet papers and films. The metal oxide particles used in this application have a porous structure that differs significantly from the nonporous silica colloids. The particles have a median particle size in the range of about 0.05 to about 3 microns and porosity such that when an aqueous dispersion of the particles is dried at least 0.5 cc/g of pore volume is from pores having a pore size of 600 ? or less. The particles also have a viscosity derived pore volume of at least 0.5 cc/g.

Abstract: A composition for forming a receiving layer for inkjet printing is provided. The composition, which is a solution or dispersion of a binder resin and a water-containing synthetic silica obtained by a wet gelling method in a solvent containing 10-80% by weight of alcohol, has a low viscosity, exhibits excellent applicability, can adsorb a large amount of ink, and can form a hard receiving layer suitable for inkjet printing. A method of manufacturing the composition and a recording sheet for inkjet printing having a receiving layer formed from the composition are also provided.

Abstract: The invention provides an image receptor medium which includes a biaxially oriented, melt-processed image receptive film comprising a) an immiscible blend of at least one semicrystalline polymer component and at least one ink absorptive polymer component and b) at least one inorganic filler. The image receptor medium may further include one or more additional layers such as support or adhesive layers.

Abstract: The present invention comprises wrinkled polymer particle comprising a polyester-containing particle having a surface covered with at least one wrinkle comprising folds, ridges, crevices and channels. The present invention further comprises a method of forming wrinkled polyester-containing particles comprising preparing a mixture of an organic phase and an aqueous phase, said mixture comprising an unsaturated precursor polyester, a water immiscible organic solvent, at least one organic-soluble ethylenically unsaturated monomer, and initiator, subjecting said mixture to high energy emulsification, initiating crosslinking of said polyester after emulsification, and removing said water immiscible organic solvent to recover wrinkled polyester-containing particles.

Abstract: A recording medium comprises a base member mainly made of pulp fibers and an ink receiving layer formed thereon containing an inorganic pigment and a binder. The recording medium shows a pore radius distribution having a peak attributable to pores in the base member and a peak attributable to pores in the ink receiving layer. The peak attributable to pores in the ink receiving layer is located between 8 and 50 nm. The ink receiving layer is formed on the base member by applying a coating formulation containing at least an inorganic pigment and a resin emulsion to the base member at a coating rate between 1 and 10 g/m2 so that the inorganic pigment and the resin emulsion become weakly agglomerated. The recording medium can be suitably used with an ink-jet recording system.

Abstract: A recording medium includes a substrate and an ink-receiving layer provided on the substrate, wherein the ink—receiving layer includes an alumina hydrate having a boehmite structure, an average particle thickness of 2.0 to 6.0 nm and a crystallite size of 5.0 to 8.0 nm in a direction of a (020) plane, and the recording medium has a degree of parallelization of 30 to 1,000.

Abstract: An improved ink jet recording material is disclosed comprising a support and an ink receiving layer. This layer contains a pigment and a polymeric binder comprising a structural unit derived from a monomer represented by following formula (I): wherein, R1 is alkyl, R2 is alkyl or aryl, R3 is hydrogen, alkyl or aryl, L is a linking unit selected from CO—NH, CO—O, and CO, and R4 is hydrogen or alkyl. The material is improved for mechanical strength. The finished ink jet image shows high color densities and high gloss without the occurence of cracking.

Abstract: Transfer paper suitable for in-jet printing, provided, at least on the side to be printed, with a release or barrier layer, the layer having a porosity of at most 100 ml/min, and a method for manufacturing a transfer paper and a method for printing transfer paper with an ink-jet printer with an aqueous dispersion of a sublimable ink.

Abstract: An ink jet recording element having a support having thereon a fusible, porous, image-receiving layer of at least two types of hydrophobic polymer particles having different glass transition temperatures, the first type of hydrophobic polymer particles having a Tg higher than about 60° C. that is substantially monodisperse and the second type of hydrophobic polymer particles having a Tg lower than about 25° C.

Abstract: The present invention provides an amorphous porous inorganic substance having small particle sizes and uniform pores, a process for synthesizing the same, and use of the same. The invention provides an amorphous porous inorganic substance having pores of a uniform pore diameter, which has an average particle size DL of 10 to 400 nm as measured by a dynamic light scattering method and a specific surface area difference, SB−SL, between a conversion specific surface area SL calculated from DL and a nitrogen adsorption specific surface area SB obtained by the BET method, of 250 m2/g or more. A process for synthesizing the same and use of the same are also disclosed.

Abstract: An ink-jet recording sheet comprising a support having thereon an ink receptive layer containing silica microparticles and a water-soluble resin, wherein the ink receptive layer is a porous layer having ink receptive voids with a peak value in a distribution curve of radii of the ink receptive voids of 10 to 50 nm; and the silica microparticles are prepared by pulverizing a silica powder, two parameters X and Y of the silica microparticles satisfying the following relationship: 150<Y+17×loge (X)<500, X being a number of silica microparticles having a diameter of not less than 10 &mgr;m contained per gram of the silica microparticles; and Y being an average particle diameter of the silica microparticles measured in nm.

Abstract: The invention provides an image receptor medium which comprises a biaxially oriented, melt-processed image receptive film comprising a) an immiscible blend of at least one semicrystalline polymer component and at least one ink absorptive polymer component and b) at least one inorganic filler. The image receptor medium may further comprise one or more additional layers such as support or adhesive layers.

Abstract: A recording sheet for ink jet printing described, which consists of a support having coated onto said support at least one ink receiving layer consisting of one or more binders and a mixture of different water insoluble, inorganic oxides of the elements aluminium or silicium, oxide/hydroxides of the element aluminium or aluminium silicates, wherein at least one of said oxides, oxides/hydroxides or silicates has a pore volume of ≧40 ml/100 g and is present in an amount of at least 8 weight percent relative to the total amount of all the water insoluble, inorganic oxides, oxide/hydroxides or silicates and that the primary particles of the mixture component with the largest volume have an equivalent sphere diameter of less than 20 nm and the primary particles of the mixture component with the smallest volume have an equivalent sphere diameter that is at least {fraction (1/20)} of the equivalent sphere diameter of the primary particles of the mixture component with the largest volume.

Abstract: This invention is directed to an ink jet recording sheet having improved image waterfastness for use in ink jet printing comprising a substrate having in contact with at least one surface thereof one or more nitrogen containing organic species, preferably admixed with one or more starches, to process of forming such recording sheet, to a method of generating one or more image(s) on said recording sheet in an ink jet printing process and to a recording sheet having one or more images on a surface thereof.

Abstract: An image receptor medium is disclosed as having a base medium, a hot melt layer adjacent to the base medium, and a porous imaging layer. An image may be imparted to the imaging layer, and heat and pressure may then be applied to the image receptor medium. A substantial number of the pores in the porous imaging layer are filled by the material of the hot melt layer, thereby fixing the image. The image receptor medium can be backed with an adhesive/release liner combination or mechanical fasteners to provide securing means or can be left without such means for “drop-in” backlit or other nonadhesive uses.

Abstract: A recording medium comprises a base member and at least a porous organic resin layer formed on the base member. The porous organic resin layer includes organic fine particles having both hydrophilic radicals and hydrophobic radicals, a water-absorbing binder and voids. The layer shows a pore size distribution having a highest peak found within a pore radius range between 3 nm and 300 nm, a pore volume of 0.2 cm3/g or more and a pH value of 5.2 or higher as observed by a method conforming to JIS P 8133. The layer is typically formed by applying to the base member a coating formulation of aqueous dispersion containing such organic fine particles, a water-absorbing binder and a basic substance and showing a pH value of 5.2 or higher as observed by a method conforming to JIS Z 8802, followed by drying.

Abstract: A recording medium for ink jet printing comprises a base material layer such as paper or plastic sheet, a porous lower layer formed on the base material layer, and a porous upper layer formed on the porous lower layer. The porous lower layer contains hydrated alumina showing a boehmite structure. The porous upper layer mainly comprises agglomerates of spherical silica particles with particle diameters ranging between 1 and 100 nm and a binder and contains voids mainly found between the agglomerates, not within the agglomerates. Preferably, a second type of spherical silica particles having smaller particle diameters than the above first type of spherical silica particles are also contained in the porous upper layer, and in this case, the first type particles have particle diameters ranging between 10 and 100 nm and are mostly found outside the agglomerates, while the second type particles have particle diameters ranging between 1 and 10 nm and are mostly found within the agglomerates.

Abstract: The display sheet comprises: a sheet-like member, which comprises a support, such as a sheet of paper and a plastic film, and a 30 to 500 micron thick flexible microporous suction sheet which is disposed on a back surface side of the support and in which an infinite number of fine and flexible depression pores 5 to 300 microns in diameter are formed; and a release film, which releasably covers a surface of the microporous suction sheet to protect the microporous suction sheet, is 10 to 100 micron thick and has a smooth surface.