Abstract: This invention is to provide a sheet product that is excellent in moisture absorption amount, moisture absorption speed and moisture release speed and is capable of keeping a powder from falling off and that can have a large content of a moisture adsorbent, and the sheet product of this invention contains (a) a moisture adsorbent formed of a tubular or fibrous metal oxide, (b) a cellulosic fibrillated fiber, and (c) an organic fiber having a fineness of 0.01 dtex to 0.45 dtex and is characteristically produced by a paper-making method.

Abstract: A process for producing dissolving pulp includes a degumming step using a degumming liquor which includes hydrogen peroxide and ammonia.

Abstract: A method for making fibers having particles attached thereto, comprising blending a carboxyalkyl cellulose and a starch in water to provide an aqueous gel; treating the aqueous gel with a first crosslinking agent to provide a crosslinked gel; drying the crosslinked gel to provide a solid; comminuting the solid to provide a plurality of particles; combining at least a portion of the plurality of particles with a aqueous dispersion comprising cellulose fibers and a first water-miscible solvent and, optionally, a second crosslinking agent, to provide a mixture comprising swollen particles and cellulose fibers; and adding a second water-miscible solvent to the mixture to provide fibers having particles attached thereto.

Abstract: A method of continuously loading fibers in a fiber suspension with calcium carbonate. The fibers include a fiber wall surrounding a lumen. A reactant solid in the form of calcium oxide and/or calcium hydroxide is mixed into the fiber suspension with a resultant initial process pH of between 11 and 12. The fiber suspension is transported at a consistency of between approximately 15 and 30% into an inner chamber of a closed reactor. A reactant gas is injected into the reactor, whereby the reactor is pressurized to a pressure between 5 and 150 psi. A temperature of the fiber suspension within the reactor is controlled at a range between ?10° C. and 80° C. The fibers within the fiber suspension are loaded with calcium carbonate as a result of a chemical reaction between the reactant solid and the reactant gas in the reactor over a predetermined reaction time.

Abstract: The present invention provides a paper quality improver for papermaking, for improving bulk value, brightness, and opacity of the pulp sheet. Further, the present invention provides a dry efficiency improver. A compound is used as the paper quality improver for papermaking, wherein the compound has less than 4% of lyotropic degree measured by a specific method and the compound satisfies at least two selected from (i) standard improved bulky value of not less than 0.02 g/cm3, (ii) standard improved brightness of not less than 0.5 point and (iii) standard improved opacity of not less than 0.5 point. The compound is added internally into pulp slurry before or in papermaking step.

Abstract: A doctor unit in a paper machine includes a blade carrier having a blade holder fitted to the blade carrier. A doctor blade is mountable in the blade holder to doctor a roll or similar moving surface. The blade holder and/or doctor blade include one or more sensors installed inside the construction or on its surface. The sensors are arranged to measure the wear of and/or stress in the blade holder and/or doctor blade.

Abstract: A filler comprising cellulose or lignocellulose fibrils on which light-scattering material particles have been deposited, and a process for the manufacture thereof. In the filler according to the invention, an alkyl derivative of cellulose, such as CMC, has been sorbed to the fibrils. Such a filler can be prepared from a source material containing cellulose or lignocellulose fibrils by first forming a fibril suspension, into which there are fed source materials forming an inorganic or organic salt that, when precipitating, forms a light-scattering pigment. The filler according to the invention has very good strength properties; in particular, good bond strength is achieved by means of it. The concentration of mineral pigment in paper can be increased and, furthermore, the grammage of paper can be lowered without the other important properties of the paper deteriorating.

Abstract: This invention relates to a liquid composition for the control of pitch deposition in pulp and paper making comprising an aqueous solution of (1) a cationic guar polymer, and (2) isobutylene/maleic anhydride copolymer. The invention also relates to a process for inhibiting pitch and stickies deposition in pulp and papermaking systems.

Abstract: A method for manufacturing a creped fiber web is provided and includes providing a rotating cylindrical dryer surface, applying an ionene adhesive to the rotating cylindrical dryer surface to form an adhesive dryer surface, conveying a fiber web to the adhesive dryer surface, drying the fiber web on the adhesive dryer surface to form a dried fiber web, and creping the dried fiber web from the adhesive dryer surface. The ionene polymer can be a crosslinked polymer of an alkylamine, a haloepoxyalkane, and an amine that differs from the alkylamine, such as a terpolymer of dimethylamine, epichlorohydrin, and ethylenediamine. The ionene adhesive may further include monoammonium phosphate. The ionene polymer may be water-soluble and cationic.

Abstract: In the method, a release layer is formed on base paper to manufacture release paper. The base paper is calendered before forming the release layer in-line on the same production line. A further object of the invention is equipment for manufacturing release paper, which equipment can be used to form a release layer on top of a base paper. The equipment comprises a calender (4) located before the release layer forming unit (5) in-line on the same production line.

Abstract: The present invention describes an additive which controls stickies formation and removes anionic trash from recycled old corrugated container furnish, old newsprint furnish, deinked pulp furnish, old magazine grade furnish, coated broke furnish, or thermomechanical pulp furnish. The present invention treats talc with either a tertiary or quaternary amine. The treated talc is then added to the pulp slurry and removes stickies by binding the stickies to the talc and neutralizes the anionic trash that may be present. The present invention also describes a method for modifying talc particles involving contacting a tertiary or quaternary amine with talc particles. The present invention further describes a talc created by the process of contacting a tertiary or quaternary amine with talc particles. The present invention additionally describes a paper product having a modified talc filler wherein the modified talc filler has been contacted with a tertiary or quaternary amine.

Abstract: Paper coating slips whose additives comprise addition polymers or copolymers containing N-vinylformamide in (co)polymerized form, and their use.

Abstract: The present invention is a tissue product comprising at least one tissue sheet. Each tissue sheet comprises a first side and an opposing second side. At least one tissue sheet comprises selectively treated pulp fiber treated with at least one hydrophobic chemical additive distributed non-uniformly in the z-direction within the tissue sheet. The tissue sheet has a % z-directional hydrophobic chemical additive gradient between the first side of the tissue sheet and the second side of the tissue sheet of about 20% or greater.

Abstract: Multi-layer headbox for a paper machine that includes a plurality of nozzle chambers having outlet gaps located at nozzle chamber ends. Each of the plurality of nozzle chambers are assigned to different layers, and at least one of the plurality of nozzle chambers has a length in a flow direction that is different from a length of at least one other of the plurality of nozzle chambers. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: An absorbent composite (10) having a fibrous matrix that includes absorbent material is disclosed. The fibrous matrix defines voids (14) and passages between the voids, which are distributed throughout the composite. Absorbent material (18) is located within some of the voids (14). Absorbent material located in these voids is expandable into the void. In a preferred embodiment, the composite's fibrous matrix includes resilient and matrix fibers (16). The composite optionally includes a wet strength agent.

Abstract: A process for producing a paper made essentially of a para-aromatic polyamide and having agglutinate portions, the process including subjecting to papermaking a composition comprising at least one member selected from the group of short fibers, staple fibers, pulp and polymer particles of a para-aromatic polyamide swollen with water, and then drying the resulting wet paper under pressure, preferably after removal of free water attached thereto. The para-aromatic polyamide paper obtained has heat resistance and stiffness and also has a high breaking length. This paper is thus useful as an insulating paper and can also be made useful as a material for composite materials by imparting other functions to the paper.

Abstract: An apparatus for manufacturing an optical fiber soot, which comprises a core partition having an opening portion at core burner side provided on a periphery of a core burner, in a reactor of the apparatus to be used in a conventional VAD method.

Abstract: The invention provides fluororesin fiber paper excellent in adhesion to a copper foil, heat resistance, chemical resistance, low water absorption and electric insulation and capable of being used as a substrate of a printed board suitable for use in high frequency, of which a low dielectric loss is required. The fluororesin fiber paper is a porous sheet obtained by forming a slurry comprising fluororesin fiber into a sheet by a wet paper making method and sintering the resultant sheet and has an average pore diameter of 0.5 to 50 ?m and a maximum pore diameter of at most 250 ?m. A copper-clad laminate for printed board is produced by laminating the fluororesin fiber paper and a copper foil having a ten point mean height of surface roughness profile (Rz) of 0.5 to 8.0 ?m on each other by means of vacuum hot pressing.

Abstract: An apparatus for loading fibers in a fiber suspension with calcium carbonate has a housing with an inlet and an accept outlet. A rotatable distribution member is positioned within the housing. A rotor and stator assembly is positioned within the housing radially outside of the distribution member. A toothed ring is interposed between the distribution rotor and the rotor and stator assembly. The toothed ring and the rotor and stator assembly define a gas ring therebetween. A reactant gas supply is fluidly coupled with the gas ring. A method for loading fibers in a fiber suspension with calcium carbonate can be practiced with the apparatus, The method controls various factors and provides low shear treatment of the suspension to promote selective crystal formation.

Abstract: The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.