Paper making and fiber liberation inventions 07/06

20060162879 - Compounding of fibrillated fiber: A process for the preparation of natural fibers for use in forming reinforced polymer composites. The process comprises fiberizing or fibrillating the natural fibers by introducing them to a hammermill that includes a rotor with hammers affixed which uses hammers to force the material against a set of perforated screens....

20060162880 - Method and a digester for the continuous cooking of wood raw material to cellulose pulp: The digester and method are for the continuous cooking of pulp. At least two withdrawal positions (11E, 11D) for cooking fluid are arranged at different heights in the digester (10). The cooking fluid in the first and second position is withdrawn after the chips have had a retention time that...

20060162881 - Creping blade and method of creping: A creping blade including a body having a leading side, a trailing side, and working end including a bevel surface. The bevel surface is defined by a leading edge and a trailing edge, wherein the trailing edge of the creping blade has a trailing edge radius of greater than about...

20060162884 - Novel inorganic pigment containing calcium carbonate, aqueous suspension containing same, and uses thereof: The present invention concerns the technical sector of mineral pigments containing a product formed in situ by the double and/or multiple reaction between a calcium carbonate and the reaction product or products of the said carbonate with one or more moderately strong to strong H3O+ ion donors and the reaction...

20060162883 - Use of polymers containing vinylamine units as promoters for alkyldiketene glueing: The invention relates to the use of polymers containing vinylamine units having a K-value (determined in 5% of an aqueous sodium chloride solution and at a temperature of 25%, having a pH-value of 7, and a polymer concentration of 0.5 wt. %) of 30-150 as promoters for mass glueing of...

20060162882 - Water-soluble polymer dispersion, process for producing the same and method of use therefor: A water-solible polymer dispersion, p process for producing the same and a method of use therefor. In particular, the water-soluble polymer dispersion is one comprising water-soluble polymer fine particles of 100 μm or less diameter having at least one ionic property selected from among cationic, amphoteric, nonionic and anionic properties...

20060162885 - Paper transparentizing agent: A paper transparentizing agent, containing at least one amide compound selected from the group consisting of: an amide compound (A) that results from condensation of a monocarboxylic acid and at least one amine compound selected from the group consisting of polyalkylenepolyamines and alkanolamines; an amide compound (B) that results from...

20060162886 - Process for improving dry strength and drainage of paper and paperboard: A process is provided of providing glyoxylated polymer additives to a paper making process which brings about improvements in drainage properties of a cellulosic pulp material along with the ability to increase the dry strength of a resulting paper product. The process uses concentrated glyoxal to generate a working solution...

20060162887 - System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents: The present invention provides an automatic control system, method and paper manufacturing machine using such control system for automatically controlling the amount of press section dewatering via the metered application of chemical dewatering agents applied to a paper web in a paper manufacturing process. The control system includes a feedback...

20060162888 - Anti-staining agent for paper machine, and method for preventing stains using the same: Provided is a paper machine contamination preventive agent that has high fixability to rolls and the like of a paper machine, that positively finds a silicone oil capable of imparting releaseability and water repellent properties to the rolls or the like immediately upon being supplied to the rolls or the...

20060162889 - Method for providing canvas of paper-making machine with anti-staining agent through sprinkling, and sliding sprinkle device and anti-staining agent for use therein: The present invention provides a method of spraying antipollution agent which can securely apply a proper amount of antipollution agent to a canvas of a paper machine, a spray nozzle and a slidable spray apparatus used in the spraying method, and antipollution agent. In antipollution agent spraying method of applying...

20060162890 - Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former: Fibrous stock is supplied by a paper or board machine headbox (1) between looped forming wires (11, 12). Water is removed in a first dewatering zone (Z1) formed with a fixed forming shoe (3) having a curved surface against which a wire (12) is supported while the opposite wire (11)...

20060162891 - Method for controlling the temperature of a cellulosic web entering a dryer: The invention relates to a method for controlling the temperature of a web, which is formed from cellulosic pulp and is to be passed to a dryer, by way of applying temperature-controlled liquid to the web. According to the invention, the thus formed web is passed into a closed space...

20060162892 - Apparatus in a paper or cardboard machine for confining the pulp flow from the headbox: An apparatus in a paper or cardboard machine for confining the pulp flow coming from the headbox (1), said apparatus comprising at least one deckle system, which comprises a deckle part (2) and supporting elements supporting the deckle part, said deckle part being so arranged that, in its service position...

20060157209 - Method and apparatus to distribute the inflow of liquors in a batch digester: Method and apparatus for introducing liquors into a batch digester to produce enhanced or plug-flow of the liquors through the bed of cellulosic material. Wash out liquor can be introduced into the digester during the discharging in a manner to add wash out liquor into the digester and to prevent...

20060157210 - Method of making tissue sheets with textured woven fabrics having highlighted design elements: A method of making tissue sheets is disclosed in which three-dimensional woven papermaking fabrics, such as throughdrying fabrics, are provided with woven highlight areas, particularly woven highlight areas containing design elements which make the design elements more visible in the resulting tissue product....

20060157211 - Composition and method relating to an adhesive for use with paper products: The present invention includes methods and compositions relating to an adhesive that can be applied to oiled or lotioned substrates....

20060157212 - Pigment: A heated mixture comprising dehydroxylated kaolin and a high refractive index pigment is disclosed. When the dehydroxylated kaolin is metakaolin, the heated mixture has a GE brightness greater than 86% and a Hunter yellowness index of less than about 11. When the dehydroxylated kaolin is fully calcined kaolin, the heated...

20060157213 - Influencing the profile of the properties of a web by means of at least one acoustic field: The invention relates to a method and a device for the processing of a fiber web or a suspension layer in a paper-, cardboard- or coating-machine or a size press for influencing the profile of the properties of a web by means of at least one sectional, directed acoustic (sound)...

20060157214 - Method of preventing raveling of surface of paper body in paper machine, printing paper for offset printing, and mold releasing agent: A method of preventing the raveling of the surface of a paper body in a paper making step, particularly in a press part and a dry part, of a paper machine, and a mold releasing agent used for the method and capable of effectively preventing the raveling of the surface...

20060157215 - Arrangement in a headbox: An arrangement in the headbox (1) of a paper or cardboard machine, said headbox comprising a pulp suspension feed system (2), which distributes the suspension over the width of the headbox, at least one first flow resistance element (3, 4), such as an aperture plate and/or tube system provided with...

20060151133 - Method and a plant for producing and treating wood fibres: The present invention relates to a plant and a method for producing and treating wood fibres in a plant comprising a fibre-producing part having a chip preheater (1) and a beater (2) for freeing fibre from wood chips. Such a plant and such a method are included as parts in...

20060151134 - Elimination of alum yellowing of aspen thermomechanical pulp through pulp washing: This invention relates to an improved process for manufacturing bleached thermomechanical aspen pulp having reduced yellow after treatment with aluminum based chemicals such as alum which are used in paper making processes. In this improved process the pulp is washed prior to, after or between the bleaching stages or a...

20060151135 - Method to determine pulping yield: Methods are provided for determining the yield and/or hygroscopicity of a pulp from the dimensions of fibers obtained from a sample of the pulp. The yield and/or hygroscopicity of softwoods and hardwoods may be calculated using the methods of the present invention. The methods of the present invention are especially...

20060151136 - Molded sheet: A molded sheet containing at least an oxidizable metal, a moisture retaining agent, and a fibrous material and having a content of components other than the fibrous material of 50% by weight or higher. The sheet has a thickness of 0.08 to 1.2 mm and a breaking length of 100...

20060144532 - Mercerization process of pulp to produce high porous material: This invention relates to mercerized cellulose fibers which form a fibrous web that exhibit an Air Porosity equal to or greater than about 100 cfm/sq ft as determined by the procedure of TAPPI T251 cm-85 on 60 gsm handsheets at a pressure of 125 Pa, and preferably having a kink...

20060144533 - Method for the production of improved pulp: Compositions and method for improving properties of pulp produced or reducing the digester cycle time in alkaline chemical pulping processes in which an effective amount of at least one selected phosphonate or carboxylate compound or mixtures thereof is admixed with the alkaline aqueous mixture in the digester of the chemical...

20060144534 - Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser: The present invention relates to a process for bleaching a cellulosic fibre material with a peroxide compound in an aqueous alkaline medium, comprising a bleaching step wherein: a) a first polymer (A) comprising a homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or...

20060144535 - Surface treatment with texturized microcrystalline cellulose microfibrils for improved paper and paper board: The present invention relates to the production of texturized microcrystalline cellulose from raw pulp material. This texturized microcrystalline cellulose can then be used for surface treatment of paper or paper board. Additionally, the texturized microcrystalline cellulose may be used as a starting material for production of paper or paper board....

20060144536 - Soft and durable tissues made with thermoplastic polymer complexes: A thermoplastic complex comprises an emulsified hydrophobic thermoplastic polymer and a complexing agent. The thermoplastic complex can formed by pre-mixing an emulsified hydrophobic thermoplastic polymer with a complexing agent to form a paste-like complex. The thermoplastic complex can then be dispersed in a water-fiber suspension in the wet-end section of...

20060144537 - Paperboard: A paperboard is made by a process using a high consistency pulp slurry containing high levels of crosslinked cellulosic fibers, dispersing the fibers in a screen with a rotor in the screen and then passing the fibers through the screen basket with a hole diameter of at least 2 mm...

20060144538 - Process for making a paperboard from a high consistency slurry containing high levels of crosslinked cellulosic fibers: A process is described for manufacturing a paperboard from a high consistency slurry containing high levels of crosslinked cellulosic fibers by dispersing the fibers in a screen with a rotor in the screen and then passing the fibers through the screen basket with a hole diameter of at least 2...

20060144539 - Non-impact printing method for applying compositions to webs and products produced therefrom: A method is disclosed for application of compositions onto non-woven webs, such as paper webs. The present invention is also directed to products made from the process. In general, the method includes applying a composition to a non-woven web using a non-impact printer, such as an ink jet printer. The...

20060144540 - Method of using a high consistency slurry containing high levels of crosslinked cellulosic fibers: A process of using a high consistency slurry containing high levels of crosslinked cellulosic fibers is described. In the process the fibers in the high consistency slurry are dispersed in a screen with a rotor and the fibers which pass through the through the screen are formed on a foraminous...

20060144542 - Composition: The invention relates to a composition used for enhancing softness in paper products. The composition comprises (i) an oil, fat or wax (i) at least one non-ionic surfactant (iii) at least one anionic compound selected from anionic microparticles and anionic surfactants (iv) at least one polymer which is cationic, non-ionic...

20060144541 - Softening agent pre-treated fibers: A paper product includes fibers, such as cellulosic fibers, that are pre-treated with a softening agent. The softening agent is added to a fiber slurry and then is allowed to cure onto the fibers, typically by drying. The pre-treated fibers are then diluted, re-slurried, and incorporated into the fiber stream...

20060144543 - Process for producing a fibrous composition: A process of producing a fibrous composition, which includes a first component that comprises vegetable fibres and a second component that consists of a synthetic, electrically conductive polymer. According to the method, the vegetable fibres comprise porous, loose and separate fibres, and the electrically conductive polymer is an independently electrically...

20060144544 - Method and apparatus for calendering a paper or paperboard web: A method and a device for calendering a paper or paperboard web, in which the web is led first into a calendering step and then into a reeling step. At least one edge area of the web is calendered separately in the reeling step....

20060144545 - Press device having an extended press nip for pressing of a travelling paperboard web, and procedure for controlling the pressure curve in the machine direction by such press nip: A press device with an extended press nip for pressing of a continuous paper or paperboard web comprises a press shoe, a backing member, a support, and a plurality of loading cylinders with main axes in their longitudinal directions. The press shoe can be moved between different positions. A stop...

20060144546 - Arrangement in an oscillator: An oscillator (17) is connected to a shaft (15), which is supported freely in the axial direction, by means of bearing support (16). The arrangement comprises elements (18) for both supporting the oscillator (17) to the bearing support (16) and for connecting it to the shaft (15). The elements (18)...

20060144547 - Sacrificial recoverable displacing agent for improved paper dewatering: A method and apparatus for reducing the amount of rewet of in a press section of an industrial press including a press fabric for carrying a sheet, a press for applying pressure to the press fabric and for forcing water out of the sheet and into the press fabric, and...