Abstract: An overlay paper is described which comprises a cellulosic non-woven to which a UV stabilizing agent is applied in an amount from 0.001 to 10% by weight, based on the grammage of the non-woven used, a process for producing the same and the use of the same for the production of a laminate.

Abstract: A tissue product having improved hand feel and good wettability is produced by printing onto one or both sides of the tissue an aqueous emulsion containing a hydrophilically-modified amino-functional polydimethylsiloxane. The hydrophilically-modified amino-functional polydimethylsiloxane structure has one or more pendant groups containing ethylene oxide moieties.

Abstract: A tissue product having improved hand feel and good wettability is produced by printing onto one or both sides of the tissue an aqueous emulsion containing a hydrophilically-modified amino-functional polydimethylsiloxane. The hydrophilically-modified amino-functional polydimethylsiloxane structure has one or more pendant groups containing an ethylene oxide moiety and/or propylene oxide moiety.

Abstract: Use for the paper sizing of aqueous polyurethane dispersions from (per)fluoropolyethers obtainable by reaction among the following compounds:

Abstract: The invention relates to a method for making paper, which is characterized in that the paper is impregnated with an acrylate-containing dispersion or mixture and the acrylate-containing dispersion or mixture is forced into the paper. The paper so produced can be used to produce boards, especially floor panels even if said panels have only a mass per unit area of 15 to 35 g/m2, thereby reducing the costs of production of such panels.

Abstract: A binder is applied to particles which are then combined with fibers to bind the particles to the fibers. The particles have functional sites for forming a hydrogen bond or a coordinate covalent bond. The fibers have hydrogen bonding functional sites. The binder comprises binder molecules, the binder molecules having at least one functional group that is capable of forming a hydrogen bond or a coordinate covalent bond with the particles, and at least one functional group that is capable of forming a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers may be adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder in turn may be adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.

Abstract: The present invention relates to a process for sizing paper comprising providing an aqueous suspension comprising cellulosic fibres, dewatering said aqueous suspension thereby forming a paper web, said process comprising adding to the cellulosic suspension an aqueous composition comprising aggregates comprising a sizing agent, the composition obtainable by mixing in any order prior to the addition to the aqueous suspension, (i) an aqueous solution comprising at least one coagulation agent, and (ii) an aqueous dispersion comprising a sizing agent, wherein the zeta potential of the composition is less than 20 mV. The invention also refers to an aqueous sizing composition.

Abstract: Amphoteric promoter resin that is a polymerization reaction product of a quaternary diallylammonium monomer, a diallylammonium monomer, and a unsaturated organic acid as well as compositions containing the amphoteric promoter resin and a sizing agent. The method of sizing paper with such amphoteric promoter resin compound and a sizing agent provides sized paper with significantly improved sizing property characteristics, and the sized paper exhibits superior retention of brightness due to added optical brighteners.

Abstract: Method and apparatus for fiber-reinforced mats and asphalt coated sheets for use in roofing and water resistant membranes. Mats and sheets according to the invention exhibit superior tensile strength and resistance to wrinkling. The mat aspect of the invention comprises product and method for producing mats comprised of organic matting materials such as cellulose, paper, other wood products, or felt, and reinforcing fibers such as fiberglass, plastics, and other relatively high-strength natural and synthetic fibers, the fibers being incorporated within the matting material during production of the mat. The sheet aspect of the invention comprises product and method for mats of the type described above with added asphalt coatings to improve the water-proofing qualities of the mats.

Abstract: A method and apparatus for manufacturing paper, in which method base paper manufactured in a paper machine is calendered and coated to improve its printing properties. Before calendering, the moisture content of the manufactured base paper is brought to 4-14% of the total weight of the paper, after which the base paper web (2) is taken to a multi-nip calender (3), the base paper being calendered by the multi-nip calender (3) and the calendered base paper (2) coated on at least one side with a layer of coating.

Abstract: Lignin-containing papers are rendered light stable when they contain TiO2 in combination with an amine hindered radical scavenger.

Abstract: The invention teaches a method of manufacturing a high bulk, high gloss paperweb using a supercalender operation. A paperweb surface is coated with a plastic pigment. The paperweb is run through a multi-nip calender device wherein the nip load of the paperweb is maintained at a load of about 1,000 pounds per linear inch at each nip. The temperature of the hard rolls are about 450 degrees Farenheit or less.

Abstract: A stock size intended to be added as a solution to the pulp stock in connection with the manufacture of paper or board in order to improve the characteristics of the paper or board, e.g. to reduce the absorption of liquids, to increase the dry strength and wet strength. The stock size contains a polymer, which is based on styrene maleic acid and stabilised with a polysaccharide, such as cationic starch. The stock size is advantageousl prepared in a steam jet cooker. The stock size is suitably used as a stock size in the manufacturing of liquid packaging board.

Abstract: Novel nanosized kaolin clay particles are prepared by agitating a fine particle size fraction of kaolin clay in a Netzsch mill until the particle size is reduced, aspect ratio is decreased and surface area is increased. The ultrafine kaolin particles are especially useful as a pigment to provide high surface gloss to ink jet printing papers.

Abstract: A method is disclosed for topical application of compositions containing a chemical additive onto a paper web. The present invention is also directed to paper products formed from the method. In general, the method includes the steps of extruding a composition containing a chemical additive through a melt blown die and then applying the composition to a moving paper web. In one embodiment, the chemical composition is extruded into fibers and applied to the paper web. The chemical composition can contain, for instance, various additives, such as a polysiloxane softener.

Abstract: The present invention is a method for uniformly applying a foam to a wet tissue web is provided. Specifically, a foam is first formed from a liquid-based composition and a gas, such as air. Once formed, the foam is applied by a foam applicator to the wet tissue web. In one embodiment, for example, the foam applicator applies the foam with a flexible scraper contacting the wet tissue web during the application of the foam. When applied with the foam, the wet tissue web typically has a solids consistency less than about 95% by dry weight of the tissue web. In some embodiments, one or more vacuum slots may be utilized in conjunction with the foam applicator to facilitate uniform application of the foam to the wet tissue web.

Abstract: This invention pertains to security paper and methods of making such security paper. The invention comprises a light-colored base paper having a non-protection area of a first thickness, and a protection area of a second thickness on at least one major surface of the base paper wherein the first thickness is greater than the second thickness. The base paper comprises colorant whereby the protection area exhibits a translucence when viewed using transmitted light, and exhibits the colorant as a darker color indication, relative to the non-protection area, when viewed using reflected light. Transmission of light through a combination of paper fibers and the colorant of the invention, both being disposed at the protection area, is discernibly different from transmission of light through the non-protection areas of the base paper, when viewed with a human eye.

Abstract: Pulp fibers can be treated with water insoluble chemical additives resulting in a minimal amount of unretained water insoluble chemical additives present after redispersing the treated pulp fibers in the process water. One embodiment of the present invention is a method for preparing chemically treated pulp fiber. A fiber slurry is created comprising process water and pulp fibers. The fiber slurry is transported to a web-forming apparatus of a pulp sheet machine thereby forming a wet fibrous web. The wet fibrous web is dried to a predetermined consistency thereby forming a dried fibrous web. The dried fibrous web is treated with a water insoluble chemical additive thereby forming a chemically treated dried fibrous web containing chemically treated pulp fibers.

Abstract: A tissue product having improved hand feel and good wettability is produced by printing onto one or both sides of the tissue an aqueous emulsion containing a hydrophilically-modified amino-functional polysiloxane.

Abstract: A method for directly forming and finishing a web product is provided. The method includes forming a web on a forming apparatus, continuously transferring the formed web to a conveyor, performing a converting step on the web as the web is continuously supported and advanced on the conveyor, and finishing the web into a product substantially ready for packaging. A system for performing the method is also provided.

Abstract: The invention relates to a process for producing a coated paper web. According to the process, a paper web is formed from a fibrous raw material in a paper machine, the paper web is coated with a pigment-containing coating mix, and the coated paper web is calendered. According to the invention, the paper web is coated with a coating composition that contains as the mineral pigment mainly a mixture of gypsum and calcium carbonate, the amount of gypsum being at minimum 10% by weight of the total amount of gypsum and calcium carbonate. With mixtures of calcium carbonate and gypsum, such as mixtures of PCC and gypsum and mixtures of PCC, ground carbonate and gypsum, there are obtained simultaneously a sufficient gloss and smoothness as well as a brightness and opacity better than with PCC-kaolin pastes.

Abstract: A tissue product having improved hand feel and good wettability is produced by printing onto one or both sides of the tissue an aqueous emulsion containing a hydrophilically-modified amino-functional polydimethylsiloxane. The hydrophilically-modified amino-functional polydimethylsiloxane structure has one or more pendant groups containing ethylene oxide moieties.

Abstract: The present invention may provide a towel desirably including first and second layers having cellulosic fibers and a repellant agent. The first and second layers may substantially sandwich a third layer having cellulosic fibers with higher absorbency than the first and second layers. All three layers may form a single ply.

Abstract: In the method for manufacturing surface-treated printing paper, a paper web is first dried down to a target moisture of the surface treatment, and it is wetted again to the target moisture before the surface treatment. The rewetting to the target moisture is conducted on the web running to the surface treatment before a device effecting the surface treatment of the web, as seen in the travel direction of the web. Before re-wetting, the moisture profile of the web is adjusted in the drying section by wetting the web at a point which is located before the area of the heavy shrinkage (cd shrinkage area) in the travel direction of the web.

Abstract: A method and apparatus of manufacturing a web which is striped with add-on material, comprising: a first slurry supply which forms a sheet of base web and moves the sheet along a first path; a second slurry supply; and a moving orifice applicator operative so as to repetitively discharge the second slurry upon the moving sheet of base web. The moving orifice applicator includes a chamber box arranged to establish a reservoir of the second slurry across the first path, an endless belt having slotted orifices, the endless belt received through the chamber box, and a drive arrangement operative upon the endless belt to continuously move the orifices along an endless path and repetitively through the chamber box. The orifices communicate with the reservoir to discharge the second slurry as bands of add-on material to the base web. The slotted orifices can be spaced apart along the belt and oriented so as to be angled with respect to the travel direction of the belt and parallel to each other.

Abstract: A method of producing dimensionally stable paper and/or paperboard products by treating a hygroreactive cellulosic fiber matrix with a hydrophobic sizing agent solution; and drying the treated fibers using heat and/or pressure so that the hydrophobic sizing agent penetrates the fiber matrix making it hydrophobic.

Abstract: The present invention is a method for uniformly applying a foam to a wet tissue web is provided. Specifically, a foam is first formed from a liquid-based composition and a gas, such as air. Once formed, the foam is applied by a foam applicator to the wet tissue web. In one embodiment, for example, the foam applicator applies the foam with a flexible scraper contacting the wet tissue web during the application of the foam. When applied with the foam, the wet tissue web typically has a solids consistency less than about 95% by dry weight of the tissue web. In some embodiments, one or more vacuum slots may be utilized in conjunction with the foam applicator to facilitate uniform application of the foam to the wet tissue web.

Abstract: The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.

Abstract: The present invention is to provide a base material for a laminate having a high strength, reduced thickness, and light weight. In the present invention, a base material is prepared by incorporating a thermosetting resin binder into a non-woven fabric of para-aramid fibers prepared by a wet type paper making, and then heating a plurality of the resultant non-woven fabric sheets under pressure. The non-woven fabric sheet comprises 95 to 70 mass % of the para-aramid fibers and 5 to 30 mass % of the thermosetting resin binder.

Abstract: For use as a wet strength agent, a water-soluble blocked urethane prepolymer having a hydrophilic group and a blocked isocyanate group is combined with a cationic charge-adjusting agent. The adsorption and retention of the water-soluble blocked urethane prepolymer to cellulosic fiber are promoted by virtue of the cationic charge adjusting agent when the wet strength agent is added to a paper-making stock.

Abstract: A method of reducing the level of malodorous amines emitted by paper when exposed to an alkaline environment is provided, which comprises making the paper so that it does not contain ammonium groups that are bonded to any polymer contained in the paper by only one chemical bond. Laminates which emit reduced levels of amines and which are comprised of this paper are also provided. In a preferred embodiment, the paper is sized with a sizing emulsion comprised of alkenyl succinic anhydride and a cationic water-soluble polymer having ammonium groups that are attached to the polymer by at least two chemical bonds.

Abstract: A paper having an improved print quality comprises a paper substrate having a surface with a surface roughness of less than 6 microns and a surface gloss of 5-80% which surface has been coated with a light-weight, low solids content, top coat. The top coat may comprise (i) a rheology modifier/binder component and at least one pigment or (ii) at least one binder coated pigment. The top coat provides a significant improvement to the delta gloss of the so-treated paper.

Abstract: Disclosed is a composition for softening an absorbent tissue and tissue structures softened using the composition. The composition includes an effective amount of a softening active ingredient; a vehicle in which the softening active ingredient is dispersed; an electrolyte dissolved in the vehicle; a bilayer disrupter and a high polymer. The electrolyte and the bilayer disrupter cooperate to cause the viscosity of the composition to be less than the viscosity of a dispersion of the softening active ingredient in the vehicle alone. The high polymer adds “stringiness” to the composition opening the air pressure operating window for spray application of the softening composition.

Abstract: A process for producing additive composition treated multi-ply tissue products is disclosed. In accordance with the present invention, at least one (1) ply of the tissue product is treated with an additive composition, such as a lotion. Once the additive composition is applied to the tissue product, the tissue is then hot embossed by being fed through, for example, a heated bonding nip. It has been discovered that the hot embossing step improves the adhesion between the multiple plies.

Abstract: The invention concerns a catalyst carrier comprising a fibre paper impregnated with a slurry comprising silica sol, micro fibres and a filler, wherein said micro fibres have an equivalent average particle size, measured with sedigraph method, from about 200 nm to about 30000 nm and said filler has an average equivalent particle size, measured with sedigraph method, from about 300 to about 10000 nm. The invention further concerns a method of its preparation, a slurry useful therefore, a catalyst comprising such a catalyst carrier and use of the catalyst.

Abstract: The invention relates to a method for producing a calendered paper web. According to the method, a paper web is formed from a fibrous raw material in a paper machine, and the paper web is calendered. According to the invention, a fibrous raw material is used which is at least partly made up of a chemimechanical pulp of a wood species of the Populus family, and the calendering is performed by online soft-calendering. By means of the invention, the gloss and smoothness of papers can be improved without decreasing their bulk.

Abstract: Paper or paperboard laminate composed of at least one bulk-promoting layer, here termed the bulk layer, and on at least one side at the bulk layer at least one secondary layer, secondary layer and bulk layer being joined to one another directly or indirectly over basically the whole of their surfaces facing one another, 40-95% of the bulk layer consists of cellulose fibers with a freeness of 550-950 ml CSF, the secondary layer/layers has/have a greater density than the bulk layer, and the laminate has a bending stiffness index higher than 2.5 Nm7/kg3, but less than 14 Nm7/kg3, calculated as a geometric mean value for machine and transverse direction.

Abstract: The present invention is a method of applying a chemical treating agent to a cellulose web. The invention is further a means of increasing the bulk, absorbency and pattern definition in an embossed cellulose web without losing softness in the web. Finally, the invention includes products produced by the foregoing processes.

Abstract: Ink-receiving print media products having multiple capabilities including (A) minimal drying time; (B) improved smear-fastness; (C) the ability to generate high-definition images with desirable gloss characteristics and gloss-uniformity; and (D) excellent compatibility between the ink materials being delivered and the media products along with other related benefits including the control of ink-coalescence. The print media products of interest have at least one ink-receiving layer on a substrate (e.g. polyethylene-coated paper), with the ink-receiving layer including a poly(vinyl alcohol-ethylene oxide) copolymer as a special multi-functional ingredient designed to produce the foregoing benefits. The copolymer may be employed alone or combined with one or more other ingredients in the ink-receiving layer including pigment(s), supplemental binder(s), and the like in order to fabricate an effective media product ideally suited for inkjet image generation using a wide variety of inks.

Abstract: An aqueous treatment agent for wiping paper is capable of rendering tissue paper, toilet paper, and other types of wiping paper dry to the touch, highly smooth, nonsticky, and extremely soft while suppressing the slippery or wet feel thereof. The aqueous treatment agent comprises a water dispersion of a silicone rubber powder with an average particle diameter of 0.1 to 500 micrometers, a silicone oil, a surfactant, and water.

Abstract: Electrophotographic paper and a method for its production, according to which method a cellulose pulp is slushed, a filler is mixed with the slush, and the slush is formed in the paper machine into a web, which is dried. According to the invention, bivalent or trivalent cations in an amount of at least 0.1% of the dry weight of the pulp are attached to the acid groups of the cellulose pulp before the forming of the web. Thereby a paper web is obtained the surface charge of which is at least approximately 600 V when relative humidity is 40%. The surface charge of the paper according to the invention remains stable within a wide humidity range. For this reason, when the paper according to the invention is used, the need for drying the paper in the printing press is significantly reduced.

Abstract: The invention concerns sulfate-containing and aluminum-containing pigments having pseudoboehmitic structural units, their manufacture and use for paper making. In the manufacture of paper, these pigments produce surprisingly good printing results with inkjet color printers and are also simple to manufacture.

Abstract: Abrasion resistant papers such as overlays or decor sheets useful in decorative laminates, and in particular, to abrasion resistant papers incorporating spacer or separator particles to minimize the amount of damage to highly polished caul plates caused by contact of the caul plates with abrasion resistant materials during the lamination process and a process for manufacturing such abrasion resistant papers.

Abstract: A manufacturing process for a two-layered facing 1 includes: a front material preparation step 11; a backing material preparation step 21; and a molding step 31. The backing material preparation step 21 includes the following steps: a papermaking step 22 in which short fibers and pulp material are blended and made into a paper, the paper is then coated with a binding agent and dried to obtain a paper sheet 4; and a winding step 23 in which the paper sheet 4 is cut into a tape-like form and rolled into a ring shape to obtain a backing molding material 5. In the molding step 31, the two-layered facing 1 is manufactured by laminating together a front material 2 manufactured in front material preparation step 11 and the backing molding material 5 manufactured in backing material preparation step 21 and thermally molding the two materials together while applying pressure.

Abstract: The invention relates to a method and arrangement for processing a wide paper or board web in connection with such a manufacturing method, in which a wide base web (14) is manufactured and the base web is processed in at least one processing stage before the separation of the finished product by cutting it transversely from the web on the production line. According to the invention, the base web (14) is divided at least once to form two part-webs (17, 18) before the separation of the finished product by cutting it transversely from the web and before the final processing stage preceding separation. At least one part-web (17, 18) formed in this manner is guided to a finishing stage before the separation of the finished product by cutting it transversely from the web on the production line.

Abstract: A tissue product having improved hand feel and good wettability is produced by printing onto one or both sides of the tissue an aqueous emulsion containing a derivitized amino-functional polysiloxane. The derivitized amino-functional polysiloxane structure has one or more pendant groups containing an amine derivative.

Abstract: A tissue product having improved hand feel and good wettability is produced by printing onto one or both sides of the tissue an aqueous emulsion containing a derivitized amino-functional polysiloxane. The derivitized amino-functional polysiloxane structure has one or more pendant groups containing an amine derivative.

Abstract: Cationically modified white pigments (W) in particulate form, essentially consisting of a particulate inorganic white pigment (M) of a particle size in the range of 0, 1 to 40 &mgr;m and an applied water soluble, cationic, crosslinked polymer (PA) containing quaternary ammonium groups in salt form, obtainable by reaction of epichlorohydrin or of epichlorohydrin derivatives or precursors with amines, under conditions leading to at least partial crosslinking, optionally in combination with an anionic optical brightener (B) and where the molar ratio of (B) to (PA) is such that the number of cationic charges of the total polymer (PA) is higher than the number of anionic charges of the total anionic optical brightener (B), are surprisingly useful as cationic white pigments in various fields of technique, especially in papermaking.

Abstract: A method of applying treatment chemicals to a fiber-based planar product, particularly tissue, includes the steps of: a) applying a treatment composition containing the treatment chemicals to a revolving belt (1) and b) bringing the revolving belt (1) into contact with the moving fiber-based planar product (3), thereby transferring the treatment composition from the revolving belt (1) via the contact surface to the moving fiber-based planar product (3). An apparatus suitable for performing this method, includes: at least one application element (4, 5) for applying treatment compositions to a revolving belt (1), and the revolving belt (1) that is in contact with moving fiber-based planar product (3) via a contact surface and transfers the applied treatment composition via this contact surface to the moving fiber-based planar product (3).

Abstract: The invention relates to a method of forming a multicomponent mat, the multicomponent mat which is formed from glass fibers and natural fibers and methods of making a multicomponent mat. Initially in the method of forming a multicomponent mat, a natural fiber slurry is formed. The next step involves using a surfactant to disperse glass fibers in white water. The natural fiber slurry and the slurry of glass fibers are generally compatible and are combined to form a multicomponent slurry which is used to form a multicomponent mat.