Paper making and fiber liberation inventions 10/06

20060237153 - Printing papers: Printing papers with reduced discoloration are obtained by using a pulp with improved discoloration. Printing papers with remarkably improved discoloration can be obtained by including a pulp consisting of one member or a mixed pulp of two or more members of bleached or unbleached mechanical pulps, semichemical pulps, chemical pulps...

20060237154 - Multi-ply paper towel with absorbent core: A multi-ply absorbent sheet of cellulosic fiber with continuous outer surfaces is provided an absorbent core between the outer surfaces. The absorbent core includes a non-woven fiber network having: (i) a plurality of pileated fiber enriched regions of relatively high local basis weight interconnected by way of (ii) a plurality...

20060237155 - Polyorganosiloxane compositions for the treatment of substrates: The invention relates to polyorganosiloxane compositions containing structurally different amino polysiloxane and/or ammonium polysiloxane compounds a1) and a2), methods for the production thereof, the use thereof for the hydrophilizing or softening treatment of substrates, especially fiber-type substrates, and products comprising the same, particularly paper products such as mats, paper pulps,...

20060237156 - Method and apparatus for measuring fiber orientation of a moving web: An image-based measurement technique that directly measures the orientation of fibers in a moving web that comprises nonwoven material measures the orientation angles of the individual fibers so that a more robust estimate of the statistical distribution of fibers is obtained. The technique includes the steps of: (a) illuminating an...

20060237157 - Extended couch nip on cylinder former: An apparatus for use in a cylinder machine having a shoe with a concavely-shaped pressure surface that forms a substantially mating relationship with a cylinder mould or sieve. The concavely-shaped pressure surface of the shoe increases the amount of wrap that a making fabric has on a cylinder mould or...

20060231222 - Method and apparatus to decrease steam consumption in conventional batch digesters: Method and apparatus for conventional batch digesters to retain thermal energy typically lost in the flashing blow operation by transferring the thermal energy to fresh cooking liquors from hot spent cooking liquor....

20060231223 - Use of alkenyl succinic anhydride compounds derived from symmetrical olefins in internal sizing for paper production: A method of sizing paper for use in applications which require resistance to liquids comprising incorporating in the paper a size composition comprising one or more alkenyl succinic anhydride (ASA) compounds prepared from the reaction of maleic anhydride and one or more substantially symmetrical C20-C28 internal olefins....

20060231224 - Composite paper sheet material and method for production thereof: The paper sheet material comprises at least a first ply (V1) and a second ply (V2), coupled together by a glue. The first ply has a first embossing according to lines inclined with respect to a first longitudinal edge of the material, and the second ply is printed with a...

20060231226 - Coated base paper and a method for manufacturing coated base paper: The object of the invention is coated base paper. According to the invention, it comprises cellulose fibres based pigment-coated paper having 1 to 5 barrier layers. The barrier layer comprises a barrier chemical selected from the group comprising polyvinyl alcohol, acrylate-based barrier latexes and their mixtures. The object of the...

20060231225 - Foil with iridescent appearance and method for the production thereof: The invention relates to a foil with iridescent appearance comprising a layer formed by iridescent pigments mixed with hollow plastic microspheres arranged on the surface of said foil. Said invention also relates to a method for producing a foil with iridescent appearance consisting in coating a substrate with a layer...

20060231228 - Formation of hydrogels and use of hydrogels: A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer...

20060231227 - Paper and paper articles and method for making same: This invention relates to a paper material containing cellulosic fibers and from about 0.1 to about 6.0 wt % by weight dry basis expandable microspheres and a density of at least about 6.0 lb/3000 ft2/mil and articles formed there from such as file folders....

20060225851 - Chip washing apparatus: A chip washing apparatus comprises an injection tube and a housing, wherein the injection tube includes a water inlet for importing a pressurized washing liquid and a water outlet connected to the housing. A bent bottom edge of the housing is inwardly bent to softly cover the surfaces of the...

20060225852 - Process for removing silica from cellulosic material: A method of cellulosic raw material desilication involves the steps of impregnating the cellulosic raw material with a solution containing sodium carbonate to form a silica-containing impregnation black liquor and an at least partially desilicated raw material, separating the silica-containing impregnation black liquor from the at least partially desilicated raw...

20060225853 - Apparatus and method for production of pulp: Apparatus for separating steam from a mixture of steam and fibers is disclosed, comprising an elongated feeding compartment having an inlet and a feeding device for feeding a mixture through the inlet. The feeding device comprises a tubular section which is curved such that the mixture in the tubular section...

20060225854 - Newsprint paper treated with cationic surface sizing agent: Newsprint for offset printing having sufficient water absorption resistance to provide a clear printing image with less color registration problems upon offset printing is manufactured by coating base paper, to which aluminum sulfate (a 50% by weight Al2O3.14H2O product) is added at a ratio of less than 3.0% by weight...

20060225855 - Method for the cationisation of legume starches, cationic starches thus obtained applications thereof: The invention relates to a novel solvent-free method for the cationisation of a legume starch. The invention also relates to the cationic starches of legume origin thus obtained. The invention further relates to the use of the cationic starches thus obtained, originating from legumes, in the paper industry and, in...

20060225856 - Papermaking using modified sheet silicates as microparticles: Use of sheet silicates containing amino groups, sulphonic acid groups and/or mercapto groups as microparticles in papermaking, in particular for paper retention and/or drainage....

20060219375 - Process for producing kraft pulp: In the process for producing kraft pulp, there are provided (G) a potassium ion removal step of flowing an aqueous solution containing ashes recovered from a combustion exhaust gas generated in a black solution combustion step (E) by a dust collector through a packed bed filled with a sodium-type cation...

20060219376 - Microcrystalline cellulose and method for making: The present application provides a method of converting a pulp having at least 7 percent by weight hemicelluose and a D. P. of from 200 to about 1100 to a composition comprising microcrystalline cellulose. In the process the pulp is contacted with a treating agent to hydrolyze the cellulose to...

20060219377 - Apparatus for cleaning a papermachine fabric: An apparatus for cleaning a papermachine fabric has a device for removing contaminants from a fabric. The device has a contact surface which comes into contact with at least an outer side of the fabric and which is constructed and arranged in such a way that the contaminants can be...