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Paper making and fiber liberation August inventions list 08/06

20060191651 - Method for converting a tower for cellulose pulp and the tower itself: The method is for converting a vertically standing up-flow tower by inserting a freely insertable pipe into the conical part of the up-flow tower the tower is converted to a down-flow tower where the tower can easily be restored to the up-flow tower and optimized with regards to a minimized...

20060191652 - Steam treatment of chips with the addition of an acid liquid: The method is for the pre-treatment of chips that are fed to a sulphate cooking process. Through the addition of an acidic fluid to the steam treatment step, a very high ionic concentration of hydrogen ions is achieved. When the chips are subsequently formed into a slurry with a preferably...

20060191653 - Method for the treatment of paper surfaces: A method for the treatment of paper surfaces is described....

20060191654 - Paper product and method for manufacturing: The invention relates to a paper product and a method for manufacturing a paper product. In an embodiment, the invention includes a paper product including a paper substrate comprising a web of fibers having a first surface and a second surface and having a selective indicator provided over the first...

20060191655 - Composite web and process for manufacture from post-industrial scrap: A composite web and process for manufacture from post-industrial scrap wherein the fibers are pre-opened and cut to an average fiber length of about 4 mm. A scrap fiber component and a cellulosic component of such fibers are blended into a fiber furnish. The scrap fiber component includes at least...

20060191656 - Paper substrates useful in wallboard tape applications: This invention relates to paper products and/or substrates suitable for being made and/or converted into wallboard tape; which also may be known as joint tape and/or drywall tape, having a pH of at least 7.0 and containing a plurality of cellulose fibers, a wet strength additive, an alkaline sizing agent,...

20060191657 - Process for manufacturing a cellulosic paper product exhibiting reduced malodor: A process for manufacturing a cellulosic paper product is provided. The process comprises forming an aqueous suspension of papermaking fibers; introducing sodium bicarbonate into the aqueous suspension; depositing the aqueous suspension onto a sheet-forming fabric to form a wet web; and dewatering and drying the wet web. The process of...

20060191658 - Papermaking belt and method of manufacturing papermaking belt: A papermaking belt, used for a shoe pressing belt, a calender belt and a sheet transfer belt, is prevented from cracking and inhibited from growth of a crack, and comprises a reinforcing substrate (6) embedded in a thermosetting polyurethane layer (7) so that the said reinforcing substrate (6) and the...

20060185804 - Multilayer toilet paper: Multilayer toilet paper (10) comprising a first outer layer (20) a second inner layer (30) and at least one middle layer (40) in-between, wherein the at least one middle layer (40) is a waved layer....

20060185805 - Composition for the fluorescent whitening of paper: Composition for the fluorescent whitening of paper, which comprises a) a fluorescent whitening agent (FWA) derived from 4,4′-bis[(1,3,5-triazin-2-yl)amino]stilbene-2,2′-disulphonic acid and characterized by one or both of the triazine rings carrying an —NH2 substituent; b) water and c) optionally, further auxiliaries, the use thereof in either the pulp mass, in coating...

20060185806 - Retention and drainage aids: The present invention describes polymeric retention and drainage aids for cellulosic fiber compositions and methods of use of the same....

20060185808 - Fixation of optical brightening agents onto papermaking fiber: The present invention relates to a method of increasing the brightness of pulp, pulp made from such methods and methods of using such pulp....

20060185807 - Patterned paper with improved printing or lettering features: The present invention relates to a process for the production of nonuniformly intensely colored paper with improved printing or lettering features, and paper produced by this process....

20060185809 - Actuator system for use in control of a sheet or web forming process: One or more actuator driven devices on a sheet forming machine receive power and engage in bi-didrectional communications with one or more quality control systems either by having no physically connected cables to transmit the power to the actuators and no physically connected cables used for the bi-directional communications; or...

20060185810 - Cooking device for regenerating a cooking product: A cooking device for regenerating an item to be cooked includes a regeneration compartment, inside of which at least two regeneration levels are or can be arranged at different heights, in particular, while being fixed by being pushed in. A timer that trips an alarm after a set or settable...

20060185811 - Machine for the production/processing of a material web and damping device: Machine for the production/processing of a material web, in particular a fibrous web, for example of paper or board, which comprises at least one treatment section in which the material web can have a treatment fluid applied to it, the treatment section being connected or able to be connected to...

20060185812 - Removable doctor blade holder with lockable mount: A doctoring apparatus for doctoring a roll surface comprises a doctor blade, a blade holder for applying the doctor blade to the roll surface, and a doctor back having a support surface on which the blade holder is adapted to slide. A locking bar is subdivided into multiple mechanically interlocked...

20060180285 - High quality and long natural cellulose fibers from rice straw and method of producing rice straw fibers: A method and kit for rice fiber extraction is provided. In an exemplary embodiment, the method may include treating rice straw with an alkali solution such as a sodium hydroxide solution. Further, the method may include extracting coarse rice fibers from the rice straw and treating the extracted coarse rice...

20060180286 - Aqueous adhesive composition containing a mixture based on legume starch: An aqueous adhesive composition intended for assembly of corrugated cardboard, consisting of a primary part and a secondary part, wherein the secondary part is made from a mixture including at least one legume starch and at least one cereal and/or tuber starch. A process for preparing corrugated cardboard using such...

20060180287 - Unitary fibrous structure comprising randomly distributed cellulosic and non-randomly distributed synthetic fibers: A process for making a unitary fibrous structure comprises steps of: providing a fibrous web comprising a plurality of cellulosic fibers randomly distributed throughout the fibrous web and a plurality of synthetic fibers randomly distributed throughout the fibrous web; and causing co-joining of at least a portion of the synthetic...

20060180288 - Processes for making temporary wet strength additives: Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer comprising the homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strength additive are provided....

20060180289 - Processes for making temporary wet strength additives: A novel cationic liquid starchy composition and uses thereof in industry, in particular, as an additive in paper and cardboard production, as an additive for treatment of industrial water, either from paper or cardboard production or not, or for the preparation of such additives. The cationic liquid starchy composition is...

20060180290 - Leader cloth and manufacturing method thereof: [Problem to be solved] To provide a leader cloth for pulling and installing a belt body onto rolls in a paper machine; the leader cloth is free from problem while passing through between the rolls with small clearance when pulled into the paper machine, and is capable of preventing sag...

20060180291 - Composite-construction treatment equipment: A composite-construction treatment equipment has a frame (12) with a connected blade holder (15) made of a composite material. The blade holder (15) has a blade (16) and a separate backing blade (18). The blade holder (15) is removably adapted to the frame (12) using a pair of form-locking counter...

20060180292 - Papermachine fabric: The invention relates to a papermachine fabric, in particular a press felt, having a carrier layer on which, at least in some sections, fibers with exposed fiber ends are arranged, the fibers forming a contact surface with which a paper web can be brought into contact, and wherein the contact...

20060175029 - Batch process for preparing pulp: According to the invention, polysulfide is used in the manufacture of kraft pulp in the initial stage of a displacement batch process in order to improve the yield. Polysulfide-containing white liquor is added inter-mixed with the first liquor charged to the digester, or as a separate charge before the impregnation...

20060175030 - Process for making a unitary fibrous structure comprising cellulosic and synthetic fibers: A unitary fibrous structure comprises a plurality of cellulosic fibers randomly distributed throughout the fibrous structure, and a plurality of synthetic fibers distributed throughout the fibrous structure in a non-random repeating pattern. A process for making the unitary fibrous structure comprises the steps of providing an embryonic fibrous web comprising...

20060175031 - Gap type forming section for a two fabric paper making machine: A twin fabric gap former forming section for paper making machine is described in which: the pitch of the fabric support elements d decreases progressively in the machine direction; the level of vacuum applied to the forming fabrics through the dewatering boxes increases in the machine direction; the two forming...

20060175032 - Paper transporting felt, and press apparatus of paper machine having paper transporting felt: A paper transporting felt includes a base layer, a first batt layer formed on a wet paper side surface of the base layer, a second batt layer formed on a press side surface of the base layer, a polymer elastic material impregnated in the base layer, the first batt layer...

20060169427 - Manufacturing process of a paper substrate intended to be vulcanised or parchmentised: A manufacturing process of a paper substrate intended to be vulcanised or parchmentised, consisting in: subjecting, in a dry state, the cellulose fibres to energy radiation; defiberizing and refining in an aqueous environment the irradiated fibres until a homogenous fibre solution is obtained; forming a web from the obtained fibre...

20060169428 - Devices and method for removing broken pulp web from a pulp dryer and maintenance platform for a pulp dryer: A device (21) and method for removing a broken pulp web (27) from a pulp dryer and a maintenance platform (23) comprising such a device. The device (21) comprises an actuator (31), a pulling means (33) functionally coupled to the actuator and adapted to be driven by the actuator, and...

20060169429 - System and method for oxygen delignification of pulp made for lignocellulosic material: The system is for the oxygen delignification, in at least two reaction stages, of pulp that consists of lignocellulose-containing material having a mean concentration of 8-18% pulp consistency. The system has a first pump followed by a first oxygen mixer that is followed by a first delignification zone. The first...

20060169430 - Method for producing pulp and lignin: The invention provides for methods for producing pulp (comprising cellulose) and lignin from lignocellulosic material, such as wood chips. The methods involve acid catalyzed hydrolysis. Lignocellulosic material having a relatively high moisture concentration can be used as the starting material. The lignocellulosic material is impregnated with an acid (preferably nitric...

20060169431 - Enhanced efficacy of fungicides in paper and paperboard: The invention is a method for making a fungal-resistant sheet of paper or paperboard for use in building materials. The method comprises adding a hydrophobic fungicide with a solubility in water of less that 0.3 g/L at 25° C. to a paper slurry during manufacture of the paper or paperboard,...

20060169432 - Method of preparing modified cellulose pulp: A method of preparing modified cellulose pulp using arabinoxyolans is described. The method involves contacting, (i) an arabinoxylan with (ii) a cellulose pulp. The arabinoxylan of the process is in a form selected from a concentrated solution comprising arabinoxylan or a suspension comprising arabinoxylan. Also described are: a modified cellulose...

20060169433 - Stepped calander: A calender is disclosed comprising at least two calender nips formed by at least two stacked rolls (8, 9; 14, 15) so disposed mutually in regard to each other that in the successive pairs of rolls the distance between the center axes of the lower rolls (8, 14) of the...