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Patent Searching and Data


Matches 351 - 400 out of 3,658

Document Document Title
WO/2009/044506A1
A natural fiber is beaten by a biaxial kneading machine. The beaten natural fiber is made finer by a bead mill so that it has a BET specific surface area of not less than 1 m2/g. By this process, a fine fiber for obtaining a rigid paper-...  
WO/2009/043932A1
The present invention provides system for controlling a wood particle size distribution in a wood particle manufacturing process. The system comprises a chipper adapted to receive and chip raw wood material into wood chips having crack-f...  
WO/2009/040464A1
The present invention relates to an apparatus for screening a fibrous suspension. Especially it relates to the construction of a rotor element for the screen. The rotor element comprises a front surface facing the flow, an upper surface ...  
WO/2009/040477A1
A refiner (1) comprises a stator (2) and a rotor (4), The stator and the rotor comprise a flat portion (7, 9) and a conical portion (8, 10). The conical portion has a first end (17) of smaller diameter (D1) and a second end (18) of great...  
WO/2009/040477A8
A refiner (1) comprises a stator (2) and a rotor (4), The stator and the rotor comprise a flat portion (7, 9) and a conical portion (8, 10). The conical portion has a first end (17) of smaller diameter (D1) and a second end (18) of great...  
WO/2009/040476A1
A refiner (1 ) comprising a stator (2) and a rotor (4). The stator (2) and the rotor (4) comprise a flat portion (7, 9) and a conical portion (8, 10). The conical portion has a first end (17) of smaller diameter (D1) and a second end (18...  
WO/2009/026861A1
The device according to the invention serves for classifying or concentrating liquids laden with fibres or solids by means of screening or filtration. For this purpose, a fine cylindrical screen is arranged in a vertical position in a ho...  
WO/2009/021805A1
The invention relates to a method and arrangement for generating a finished pulp suspension for producing a paper, cardboard, tissue, or other pulp web (9) by mixing at least one high-consistency flow (1) of newly prepared pulp and fille...  
WO/2009/016246A1
The invention is a filtering basket (1; 100) for fibres in water dispersion, comprising a plurality of profiled bars (2, 3; 103) arranged side by side to define a tubular structure with the inner lateral surface provided with a plurality...  
WO/2009/015700A1
The invention relates to a method for washing lignocellulosic raw material and/or fibrous material. Said raw material and/or fibrous material initially passes through a screw conveyor (6), a liquid is added to the raw material and/or fib...  
WO/2009/015701A1
The invention relates to a method for producing fine material from fibrous material rejects. Said method consists of the following steps: the fibrous material rejects are collected after a first grinding and a first sorting of the fibrou...  
WO/2009/012566A1
A contaminate separation apparatus for use in separating contaminant materials from cellulose and/or paper fibres in a paper recycling process includes a reservoir for receiving a waste paper slurry therein. The reservoir is provided wit...  
WO/2009/013391A1
The invention relates to a separation pump (1) for pumping a fluid mixture (2) of gas (3) and liquid or suspension (4) and for separating gas (3) and liquid or suspension (4) from each other. The separation pump (1) comprising a rotatabl...  
WO/2009/000348A1
The method is used to process waste paper (M) in order to allow the production therefrom of cardboard or of packaging papers. The pulp suspension (S) formed by dissolving is divided by fractionation (3) into a short-fiber fraction (F1) a...  
WO/2008/153565A1
The present disclosure relates to producing paper or paperboard having improved stiffness and strength, compared to the conventional paperboard at the same basis weight. It also discloses a method of wood pulping having a significantly i...  
WO/2008/154073A1
A method of wood pulping having a significantly increased yield is disclosed. Wood chips are chemically pulped to a high kappa number, providing a first accepts component and a first rejects component. The first rejects component is subj...  
WO/2008/145821A1
A method for the processing of pulp to be used in the manufacture of paper or cardboard, in which method the pulp is led from a pulp source to pulp processing and further into the circulation and the headbox of a paper or cardboard machi...  
WO/2008/134885A8
A system and method for optimizing a process for refining lignocellulosic granular matter such as wood chips use a predictive model including a simulation model based on relations involving a plurality of matter properties characterizing...  
WO/2008/134885A1
A system and method for optimizing a process for refining lignocellulosic granular matter such as wood chips use a predictive model including a simulation model based on relations involving a plurality of matter properties characterizing...  
WO/2008/131974A1
The method serves for the production of a screen (1) as it is used, for example, for the sorting of fibrous material suspensions suitable for the production of paper. It comprises at least two screen layers (2, 3, 4) that are equipped wi...  
WO/2008/131976A8
The invention relates to a method for the production of a screen, and to a screen for the treatment of a fibrous material suspension suitable for the production of a fibrous material web, the screen comprising at least two screen layers ...  
WO/2008/131818A1
The invention relates to a method for forming calcium carbonate in a fibrous material suspension, wherein the fibers provided in the form of a suspension are saturated with the precipitated calcium carbonate. The scope of saturation of t...  
WO/2008/131976A1
The invention relates to a method for the production of a screen, and to a screen for the treatment of a fibrous material suspension suitable for the production of a fibrous material web, the screen comprising at least two screen layers ...  
WO/2008/119872A1
The present invention relates to an apparatus in connection with wire water treatment in the approach system of a paper machine, board machine or corresponding web formation machine, which apparatus comprises a deaeration tank (40). This...  
WO/2008/119880A1
The present invention relates to a rotor element for use with a rotor and a rotor featuring said elements. The rotor is used in a screening apparatus of the pulp and paper industry. The rotor element (10) has two longitudinal edges, a fi...  
WO/2008/098153A1
A refiner plate for a mechanical refiner of lignocellulosic material including: a refining surface on a substrate, wherein the refining surface is adapted to face a refining surface of an opposing refiner plate; wherein the refining surf...  
WO/2008/087107A1
The invention discloses a method for the production of high quality paper in which a pulp is made in a substance preparation and is put on a screen in a headbox, wherein the moisture of the web formed on the screen is reduced behind the ...  
WO/2008/061582A1
The sieve apparatus according to the invention serves to treat a contaminated fibrous stock suspension, as is produced, for example, in the processing of waste paper. It has a housing (1) having a sieve (3) which separates an accepted st...  
WO/2008/055762A1
A method of and an apparatus (10) for removing gas from gas-containing suspension of liquid and solids in a container (12), comprising introducing gas-containing suspension of liquid and solids into the container so as to form a column o...  
WO/2008/056978A1
The invention relates to an apparatus (1) for processing a flow of pulp comprising fibrous material, in particular pulp comprising cellulose fibres for making paper, said apparatus comprising a drum (2) having a rotational axis (R), an i...  
WO/2008/041919A1
A rotating machine (1) has a rotor (10), a stator (20), a radial bearing (30) arranged for supporting radial forces between the rotor (10) and the stator (20) by mechanical contacts and a bearing housing (21). The bearing housing (21) is...  
WO/2008/035368A3
The present invention concerns a process for making a core board / cone board / core liner paper, particularly kraft paper, in which fibres are pulped along with water, starch gel and other compounds in a pulper in a batch process, clean...  
WO/2008/035368A2
The present invention concerns a process for making a core board / cone board / core liner paper, particularly kraft paper, in which fibres are pulped along with water, starch gel and other compounds in a pulper in a batch process, clean...  
WO/2008/031921A1
A method of manufacturing a multilayer fibrous product. The product comprises at least two overlapping layers, each of which has a different fibre composition, and in the production of the product, chemical short stock is used at least p...  
WO/2008/028771A1
The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high- consistency pulp towers, bleaching towers, storage tanks and similar towers cont...  
WO/2008/019507A1
There is provided a fiberboard, such as a MDF fiberboard or a HDF fiberboard, comprising wood fibers, a binder, and a sludge such as a pulp and a paper sludge. The sludge can be, for example, chosen from a primary pulp and paper sludge, ...  
WO/2008/003121A1
The present invention relates to the strengthening of paper sheets. Banana paper, in particular, exhibits tear resistance across the grain, but can be easy to tear along the grain. The present invention provides for laying cross-fibres a...  
WO/2007/121956A1
The invention discloses a process for refining yarn or sliver having a length of at least 1 meter, comprising the step of feeding the yarn or sliver and a liquid into a refiner, which comprises refiner fillings having a body surrounding ...  
WO/2007/123229A1
The invention provides a cellulose-base fibrous material for the production of high-opacity paper and sheeting which have low density and excellent surface characteristics and exhibit excellent dimensional stability in spite of their hav...  
WO2004007835A8
A system for screening fluid-borne material from a fluid that carries particulate matter along with the material, e.g. for screening usable fibers in papermaking or tissue making white water that also contains waste material such as fine...  
WO/2007/117203A1
A method and a device for discharging cellulose-containing pulp from a pulp tower (201 , 761 , 871), in which pulp tower (201 , 761 , 871) the pulp is treated and/or stored, the pulp being introduced (102) into the pulp tower (201 , 761 ...  
WO2007078608A9
A technique for latency removal which can be effected without introducing a significant lag time can advance analysis of pulp for feedback control thermo-mechanical pulp applications. The process for analyzing a pulp material includes: (...  
WO/2007/107179A1
The method treats a cellulose suspension (1) which has a disruptive proportion of vessel cells. The latter are treated in a loading process (2) in such a way that fillers which accumulate on the vessel cells are formed by a chemical reac...  
WO/2007/107620A1
The present invention relates to an arrangement in screening apparatuses of the pulp and paper industry, said arrangement comprising a conduit (2) for removing reject formed in a screening process. It is essential that circulation of mat...  
WO/2007/107055A1
A kind of degradable Sanitary napkin or liner, including a toplayer, a backlayer and an absorbent layer positioned between the toplayer and the backlayer, wherein the backlayer assumes the two-layer construction formed of paper waterproo...  
WO/2007/107635A1
The invention relates to a deaeration tank (10) for a feed system (200) of pulp stock of a paper machine or equivalent and a method in removing air from pulp stock. Pulp stock (M) is guided to an inlet pipe (11) of the deaeration tank (1...  
WO/2007/105454A1
Plant for production of paper-made part for speaker (43) includes mixing unit (21), atomizing unit (22), papermaking unit (23) and shaping unit (25). The mixing unit (21) mixes raw material (31) for paper-made part for speaker with liqui...  
WO/2007/106294A1
A refiner plate defines an axis of rotation that further defines variations in azimuth. The refiner plate includes an annular body portion and a plurality of azimuthally spaced-apart elongate bars projecting from the body portion. The ba...  
WO2007078608A8
A technique for latency removal which can be effected without introducing a significant lag time can advance analysis of pulp for feedback control thermo-mechanical pulp applications. The process for analyzing a pulp material includes: (...  
WO2007073310A9
The present invention relates to a washing apparatus for washing of cellulose pulp, comprising a rotatable drum (2) , provided with a number of outer compartments (4) for the paper pulp to be washed, and a stationary casing (18) that sur...  

Matches 351 - 400 out of 3,658