Abstract: A recording sheet for ink jet printing is described, which consists of a support having coated onto said support at least two ink-receiving layers, wherein the ink-receiving layer situated next to the support contains nanoporous silicon dioxide with a positively charged surface and at least one binder and the ink-receiving layer situated further away from the support contains nanocrystalline, nanoporous aluminium oxide or aluminium oxide/hydroxide and at least one binder and, optionally, nanoporous silicon dioxide with a positively charged surface.

Abstract: The present invention is drawn to a composition for cast-coating on ink-jet media. The composition includes a liquid vehicle, silica particulates, and an internal release agent. The composition is substantially free of polymeric binder and can improve the glossiness of a porous particulate-coated ink-receiving media by at least 2 gloss units at 20 degrees. The silica particulates can be suspended in the liquid vehicle at about 1-35 wt %, and can have a particle size of less than about 150 nm. The internal release agent can be present at about 0.5-10 wt %.

Abstract: The present invention relates to a sizing or coating composition that, when applied to paper substrate, creates a substrate having improved waterfastness, surface strength, and surface strength as measured by resistance to abrasion. In addition, the present invention relates to paper substrates containing the composition, as well as methods of using and making the paper substrate and composition.

Abstract: A recording medium in which a base paper, a first layer including a binder, and a second layer including kaolin and at least one pigment selected from calcined kaolin, delaminated kaolin, and amorphous silica are laminated in that order. A total content of at least one pigment selected from the group of pigments is 10% or more of the total amount of pigments in the second layer. A Cobb water absorption degree within a contact time of 120 sec in a water absorption test at a surface of the first layer of the base paper provided with the first layer is than 2.0 g/m2 or less, and a water absorption amount within a contact time of 0.5 sec determined by a Bristow test at a surface of the second layer is from 2 mL/m2 to 8 mL/m2.

Abstract: The present invention is drawn to a coated substrate for ink-jet ink printing. The substrate can have an ink-receiving coating on the imaging side. On the opposite, or back, surface, the substrate can have two coatings: a curl control coating and a photo feel coating designed to provide scratch resistance. The curl control coating can be nearest the substrate, with the photo feel coating coated over the curl control coating. The photo feel coating can have a contact angle greater than about 90 degrees and a water vapor transport rate of greater than about 5 g/m2/12 hour.

Abstract: Disclosed are a coating composition, coated article, and a method for treating one or more sides of the printable web with the composition, for providing improved printing ink dry time and gloss. The coating composition comprises: a calcium carbonate pigment component comprising a mixture high and low surface area calcium carbonate pigment; a metal salt drying agent; and a cationic dye fixing agent; a pigment binder; optionally a plastic pigment; and optionally an optical brightener; and which provides: a solids content of at least about 25%; a ratio of high to low surface area calcium carbonate in the range of from about 0.5:1 to about 20:1; and a ratio of calcium carbonate pigment component to pigment binder in the range of from about 4:1 to about 50:1.

Abstract: The invention provides a recording medium excellent in the water resistance and image fixability and a producing method thereof and an inkjet recording method using the recording medium, comprising: sequentially laminated, a base paper; a first layer containing a binder; and a second layer containing a white pigment and at least one selected from the group consisting of a urethane resin and an acrylic resin, each having a glass transition temperature of 50° C. or less, wherein a Cobb water absorption degree during a contact time of 120 sec in a water absorption test in accordance with JIS P8140 on a surface of the first layer disposed on the base paper is 2.0 g/m2 or less and an amount of water absorption during a contact time of 0.5 sec in the Bristow method on a surface of the second layer is 2 to 8 mL/m2.

Abstract: One or more surface treatment compositions and print mediums are disclosed. The surface treatment compositions may comprise at least one surface sizing agent and at least one monovalent and at least one, multivalent metallic salt. Also disclosed are methods for the production of the surface treatment composition and print media with the composition.

Abstract: An ink jet recording medium includes: a gas impermeable support, an undercoat layer that is provided on the gas impermeable support and contains from 0.01 g/m2 to 1 g/m2 of cationic polyvinyl alcohol, and an ink-receiving layer that is provided on the undercoat layer and contains inorganic fine particles and a water-soluble resin.

Abstract: An article in the form of a paper substrate having a first surface and a second surface; an internal paper sizing agent present in an amount sufficient to impart to the paper substrate an HST value of from about 50 to about 250 seconds; and a metal salt drying agent having at least about 20% by weight of one or more monovalent metal drying salts, wherein the metal salt drying agent is present on at least one of the first and second surfaces in an amount sufficient to provide a percent ink transferred (“IT %”) value equal to or less than about 65% and to provide a black print density value of at least about 1.45. Also, a method for treating the internally sized paper substrate having the HST value of from about 50 to about 250 seconds with the metal salt drying agent.

Abstract: An ink receiving substrate includes a substrate layer and organic modified silica dispensed on at least one surface of the support layer, wherein the organic modified silica includes inorganic particulates and silane coupling agents having guanidine or biguanidine functional groups.

Abstract: An inkjet recording medium includes a substrate, a base layer, and a porous ink receiving layer. The base layer is established on at least one surface of the substrate, and the porous ink receiving layer is established on the base layer. The base layer includes calcined clay present in an amount ranging from about 25% to about 75% by dry weight.

Abstract: An inkjet print medium includes a base substrate, a layer of a deinking solution at least partially diffused into the base substrate, and an ink-receiving layer established on the layer of the deinking solution. The deinking solution includes a flocculant in an amount ranging from about 0.1 wt. % to about 40 wt. % of a total wt. % of the deinking solution.

Abstract: A coated medium for inkjet printing, which includes a supporting substrate and a coating layer formed on at least one side thereof. The coating layer includes at least one binder and at least two different inorganic pigments: modified calcium carbonate (MCC) and either precipitated calcium carbonate (PCC) or clay.

Abstract: An inkjet printable article includes an ink receptive layer bonded to a paper substrate. The ink receiving layer includes particles, polymeric binder and colorant durability enhancer. From about 60% to about 95% by total dry weight of the ink receiving layer is particles selected from the group consisting of clay, kaolin, and combinations thereof. The polymeric binder is selected from the group consisting of polyvinyl alcohol, styrene butadiene, acrylonithle-butadiene latex, and combinations thereof. The colorant durability enhancer is selected from the group consisting of boric acid, borax, phenyl boronic acid, butyl boronic acid, sodium tetraborate, and combinations thereof.

Abstract: A recording sheet for ink jet printing is provided, which consists of a support having coated thereon at least one ink-receiving layer consisting of binders and at least one nanoporous inorganic compound, wherein the recording sheet contains a polynuclear aluminum hydroxo complex with 30 aluminum atoms. In a preferred embodiment, the surface of the nanoporous inorganic compound is modified by a treatment with the aluminum hydroxo complex with 30 aluminum atoms.

Abstract: A mat type recording medium for ink jet printing is provided which exhibits optimum printability no matter which of dye ink and pigment ink may be used in printing. The recording medium, which is for recording with use of water-based ink containing an ink colorant, comprises a paper base and an ink receptive layer formed on a surface of the paper base, the ink receptive layer comprising a porous layer containing an inorganic pigment and also containing a substance reactive with the ink colorant.

Abstract: A process for removing ink from a printed media substrate. Such process includes the step of providing a media substrate including an ink printed image wherein the ink composition or the media substrate contains photolabile entities. Then the process includes the step of applying UV light on the printed substrate wherein the emitted UV light has a wavelength value which is below the threshold wavelength of the photolabile entities.

Abstract: The use of a boric acid, borate or derivate and/or salt thereof in a subbing layer coated onto a non resin-coated support beneath an upper layer comprising a binder and an inorganic particulate material such as fumed silica and an under layer between the upper layer and the subbing layer, which under layer comprises a binder and an inorganic particulate material such as calcium carbonate, increases the gloss of an ink jet receiver formed thereby whilst maintaining good ink absorption, good image density and minimizing puddling and associated coalescence, and where the receiver otherwise suffers from surface-cracking, decreases the propensity to cracking.

Abstract: An inkjet recording medium comprising an ink-receiving layer containing kaolin, synthetic amorphous silica and a binder formed on one surface or both surfaces of a base paper mainly containing a wood pulp, wherein the kaolin has a particle size distribution in which a percentage of particles having a size of from 0.4 ?m or more to less than 4.2 ?m which account for 60% or more of the total as the cumulative value of the volumetric basis by a laser diffraction particle size distribution measurement, and the synthetic amorphous silica has a mean secondary particle diameter of from 0.5 ?m or more to 4 ?m or less measured by a coulter counter method.

Abstract: An ink jet recording medium comprising a substrate and at least one ink-receiving layer on the substrate, wherein said ink-receiving layer after recording has the characteristic that the sum of image clarity values is 130 or more (when measured by optical combs of 0.125 mm, 0.25 mm, 0.5 mm, 1.0 mm and 2.0 mm) and the regular reflection strength is 30 or more, makes it possible to record a high quality image which has high glossiness and photographic feel.

Abstract: The present invention is directed to an image-recording medium comprising a paper support and, coated on one side of the support, in order: a lower ink-receiving layer, an upper gloss layer and, coated on the opposite side of the support, an inner layer comprising at least 75% by weight of fine inorganic particles and a binder, and an outer layer substantially consisting of a polymeric material. Another aspect of the present invention relates to an inkjet printing process.

Abstract: The present invention relates to a styrene-butadiene latex, a preparation method thereof and a coating liquid containing the same, more precisely a styrene-butadiene latex binder for ink-jet paper containing ethylenically unsaturated monomer by 0.1-1.5 weight parts with lowering surface negative charge density, a preparation method thereof and a coating liquid containing the same. The present invention provides a coating liquid for ink-jet paper having excellent price competitiveness and coating work-ability and at the same time reducing energy cost for drying process and thereby provides an ink-jet paper with excellent printing quality.

Abstract: The present invention is drawn to a media sheet for ink-jet printing and can comprise a media substrate and a coating composition applied to the media substrate to form an ink-receiving layer. The ink-receiving layer can include semi-metal oxide or metal oxide particulates, at least 5 wt % of a water soluble coating formulation additive, and a binder. The media sheet can also have a wash conductivity less than about 80 microsiemens/cm, said wash conductivity determined by measuring the conductivity of a 50 mL bath of deionized water after placing a 100 cm2 sample of the media sheet in the deionized water for 45 seconds at room temperature under agitation.

Abstract: A support for image recording material, comprising a base paper and thermoplastic resin layers formed on both faces of the base paper, wherein: a formation index of the base paper is 60 or more; a surface of the base paper, at least on a side where an image recording layer is formed, has a center surface average roughness SRa of 0.70 ?m or less when measured with a cut-off condition of within the range of 0.05 to 0.5 mm, and a center surface average roughness SRa of 0.80 ?m or less when measured with a cut-off condition of within the range of 1 to 3 mm; and the thickness of the thermoplastic resin layer, at least on the side where the image recording layer is formed, is 35 to 60 ?m.

Abstract: Provided is an inkjet recording medium in which hydrated alumina and a sulfinic acid compound or thiosulfonic acid compound coexist in a pigment in an ink receiving layer, and which can prevent white-background yellowing during storage in a resin file holder or the like and ensure printing quality at the same time. The ink receiving layer of the inkjet recording medium contains the sulfinic acid compound or thiosulfonic acid compound, which functions to prevent yellowing, in a salt form or in a free form so as to be diffusible.

Abstract: A print medium for ink-jet printing comprises a photobase substrate, a porous ink-receiving layer and a subbing layer. The photobase substrate can include paper and a moisture barrier layer coated on at least one side of the paper. The porous ink-receiving layer can include metal oxide or semi-metal oxide particulates treated with an organosilane reagent and aluminum chlorohydrate, and a polyvinyl alcohol binder. The subbing layer can be disposed between the moisture barrier layer of the photobase and the ink-receiving layer and include a polyvinyl alcohol or a copolymer of a polyvinyl alcohol.

Abstract: The present invention is an inkjet recording element including a support having thereon an image-receiving layer having porous fusible polymeric particles including a continuous phase binder polymer and a second phase including hydrocolloid, wherein the particles have a porosity of from 10 to 80 volume percent and a film forming binder.

Abstract: An inkjet recording paper for use in a roll paper feed type printer having a printing speed of 100 m/min or more, comprising a base paper containing pulp, rosette type precipitated calcium carbonate as a filler, and a neutral rosin sizing agent as an internal sizing agent, wherein the base paper is coated with a coating mixture containing a cationic resin, an anionic fluorescent dye and a binder but no pigment; the inkjet recording paper having a Stockigt size degree according to JIS-P8122 of 10 to 25 seconds and an ash content according to JIS-P8251 of 13% to 25%.

Abstract: The invention relates to a decorative paper impregnate which can be pressed into a laminate for decorative coating materials, which is impregnated with an impregnating resin and provided with an ink receiving layer and which after drying has a residual moisture of at least 3.5% and a flow of more than 0.4%.

Abstract: An ink-jet recording ink including water, a water-soluble organic solvent, a pigment as a colorant (B), and at least one fluorochemical surfactant selected from compounds represented by Structural Formula (1) below, Structural Formula (1) where R1 denotes any one of a hydrogen atom, an alkyl group and a perfluoroalkyl group, R2 denotes any one of a hydrogen atom, an alkyl group and a fluorine-containing group, Rf denotes a fluorine-containing group, and m and n each denote an integer of 1 or greater.

Abstract: The invention provides a recording medium that prevents ink overflowing even when printing is conducted in an ink quantity exceeding 100%, permits forming an image high in density and bright in color tone and can settle the cause of the occurrence of curling or cockling, a production process of the recording medium, a substrate for the recording medium and a production process of the substrate. The recording medium comprising a substrate and an ink-receiving layer formed on the substrate, wherein the substrate is composed mainly of a fibrous material and has, at a position adjacent to the ink-receiving layer in the substrate, a surface coated part region in a state that the surface of the fibrous material has been coated with an alumina hydrate, and the ink-receiving layer comprises a porous inorganic pigment as a principal component, and a production process of the recording medium.

Abstract: The invention provides a recording medium comprising a porous cellulose layer containing at least one cellulose selected from the group consisting of lightly-beaten cellulose pulp, mercerized cellulose and fluffed cellulose and a porous filler internally loaded therein, and a recording medium further comprising an ink-receiving layer.

Abstract: This invention provides an ink-jet recording medium which improves balance between ink absorption and print image quality by ink-jet printing and is excellent in quick drying properties after printing and has an ink absorbing layer with high image quality. In the ink-jet recording medium, at least one ink absorbing layer including a material containing 5 to 90 wt % of a calcium carbonate pigment in terms of solid content is disposed on one side or both sides of a substrate, and this calcium carbonate pigment is one in which silica formed from soda silicate and calcium chloride is subjected to chemical or physical adsorption treatment on the surface of calcium carbonate particles so that the weight ratio of SiO2 to CaO is in a range of 2.0 to 80%, and the calcium carbonate pigment and the silica are preferably intertwined into a spherical form of 0.3 to 20 ?m.

Abstract: A novel polymeric initiator is disclosed comprising a dendritic polymer core with at least one initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. The polymeric initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks.

Abstract: A brightening system includes a substrate and an amphoteric stilbene composition established on the substrate. The amphoteric stilbene composition includes a predetermined amount of at least one of 4,4?-diamino-2,2?-stilbene disulfonic acid, biarylsulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, biaryldisulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, derivatives thereof, salts thereof, and mixtures thereof; and a fixing agent.

Abstract: A support for an image recording material for receiving at least an image recording layer. The center surface average roughness SRa of the support surface to be provided with an image recording layer is 0.15 ?m or less when measured under a condition of a cutoff of 0.02 to 0.5 mm, and is 0.45 ?m or less when measured under a condition of a cutoff of 1 to 3 mm. An image recording material having an image recording layer on the support. The center surface average roughness SRa of the surface of the image recording material which surface is to be provided with an image is 0.1 ?m or less when measured under a condition of a cutoff of 0.02 to 0.5 mm.

Abstract: A reward or retailer's card and a method of making a card having an overall recycle code of no greater than about 5. The card includes a core card stock made of a material having a recycle code of less than about 5. Variable indicia is printed on the card stock. A hot stamped substantially transparent foil layer is applied to at least the variable printed indicia on the card stock to protect the printed indicia.

Abstract: An inkjet medium having a support mainly containing a cellulose pulp, and a coat layer containing a pigment and an adhesive, the coat layer formed on at least one surface of the support, wherein the pigment in the coat layer as an outermost layer contains at least light calcium carbonate, kaolin and gel type silica, and has an average oil absorption of 70 ml/100 g to 120 ml/100 g.

Abstract: In web/ink-jet operations in which ink jet data is over-printed on forms prepared by offset litho, undesirable interactions between the surface size and litho-fountain are controlled by use of a PCC basesheet having a size press coating of starch and alum, the alum amount being at least 0.75% by weight.

Abstract: An ink-jet media having an absorbent substrate with a front surface and a back surface. The front surface of the substrate is coated with an ink-vehicle permeable, preferably radiation-cured coating. A microporous ink-receptive coating is deposited on top of the ink-vehicle permeable coating. An optional protective layer may be deposited on top of the microporous ink-receptive layer. The back surface of the substrate may also be optionally coated with a polymer curl-controlling coating.

Abstract: The invention relates to a gloss coated multifunctional printing paper that can be used with a variety of office printing equipment including inkjet and electrophotographic and to processes of making and using the paper. a paper substrate; and a pigmented composition coated on at least one surface of the substrate, said pigmented coating composition comprising (1) a first pigment having a BET surface area in the range of from about 50 to about 750 m2/g; (2) a second pigment having a BET surface area in the range of from about 5 to about 49 m2/g; and (3) a polymeric binder, Said coated paper having a coating gloss equal to or greater than about 30% at 75° and a Bristow Absorption length of less than about 180 mm. The coating compositions may contain other additives such as lubricants, optical brighteners and coating rheology modifiers.

Abstract: The present invention provides an image recording material support which contains a paper, wherein the paper contains at least a pulp; and the content ratio of long fiber pulp having a fiber length of 0.7 mm or more in the paper relative to the entire pulp content is 20% or less; and also provides a method for producing an image recording material support which includes beating a pulp using a refiner equipped with beating plates having an average blade angle of 10 degrees or less.

Abstract: The invention provides an ink jet recording sheet which is highly resistant to printings smearing, running, feathering, color bleeding, or fading when wet, humid, or exposed to intense or continual light. The recording sheet has a solid substrate and a composition coating the solid substrate. The composition comprises a cationic polymer as well as starch, inorganic salt, pigment, and water. The composition can further comprise a non-ionic polymer. The coating tightly binds both pigment based inkjet inks and dye based inkjet inks. The composition is easy to apply and the ink jet recording sheet can be easily formed with a standard size press device.

Abstract: An inkjet recording element having a support having thereon in sequence (a) a transparent, non-porous layer that can be swelled by water less than 0.67 of its original weight, and (b) a fusible, porous image-receiving layer. The inkjet recording element exhibits improved adhesion and excellent image quality. A method of inkjet printing is also disclosed.

Abstract: The object of the present invention is to provide an ink jet recording material which has no cracks on the surface of the ink-receiving layer and possesses both the color developability and the absorbability of pigment inks. According to the present invention, there is provided an ink jet recording material formed by coating a coating solution of a pigment layer and a coating solution of at least one ink-receiving layer in succession on at least one side of a paper support and drying the resulting coating layers, wherein the pigment contained in the pigment layer has an average secondary particle diameter of not less than 1 ?m and not more than 5 ?m, 50% by volume or more of the total volume of the pigment has a secondary particle diameter of not less than 1.

Abstract: An inkjet recording medium including a resin-coated paper including a base paper and at least one resin layer on each of both faces of the base paper, and an ink-receiving layer on one face of the resin-coated paper, wherein the inkjet recording medium includes linear concavities and convexities that are formed in parallel or approximately parallel to any one side of the resin-coated paper on at least a part of the face of the resin-coated paper on which the ink-receiving layer is not formed.

Abstract: The present invention relates to a porous membrane comprising multiple layers, at least one type of curable compound and at least two types of photo-initiator, wherein at least two layers each contain a the different photo-initiator. The invention further relates to recording media which comprise the porous membrane of the invention, as well as to processes for producing the membrane and the recording media.

Abstract: Transfer paper suitable for inkjet 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 inkjet printer with an aqueous dispersion of a sublimable ink.

Abstract: An ink jet recording paper capable of compatible with high speed ink jet printers is provided. By using, as a fiber material, mercerized pulp obtained by applying an alkali treatment to pulp, an ink jet recording paper of high ink absorption speed and high ink coloring density is formed. Since the paper itself has excellent ink absorption speed, there is no requirement for applying coating for improving the ink absorption and it can be used as non-coated type ink jet recording paper.