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WO/1996/006973A1 |
An apparatus for defibration of reclaimed paper or the like comprises a drum (1) arranged to be rotatable and having at its end an inlet for supplying the material (M) to be defibred and water and at its opposite end an outlet for defibr...
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WO/1996/006978A1 |
A method of papermaking having zero liquid discharge. A cellulosic pulp composed of either virgin or recycled materials is initially cleaned, the cleaned pulp is then washed and the washed pulp is then utilized in the papermaking process...
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WO/1996/005361A1 |
Describes flotation deinking of secondary fiber using a froth moderating agent, a composition of the froth moderating agent with flotation deinking chemicals, and reducing the amount of stickies in separated secondary fiber. The froth mo...
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WO/1996/004113A1 |
A device for producing shredded material, in particular for producing packaging material in the form of approximately rectangular strips (12) made of cardboard or the like, having a cross cutter (2) that is situated preferably downstream...
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WO/1996/001337A1 |
The process of mechanical treatment of woody parts of annual or polyannual plants covers the preparatory phases of airdried xylem fragments of textile or cellulosic plants, and to subject these fragments to mechanical pressing (3) in ord...
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WO/1995/034711A1 |
A chemimechanical pulp for use in the manufacture of paper or paperboard products where a high drainability, bulky pulp is desired. The pulp has a long fiber content of between 60 and 75 %, a fine-material content of at most 14 %, a shiv...
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WO/1995/031597A1 |
A method for defibering recycled paper into pulp to be reused. In the method, the recycled paper is defibered and coarse-screened in a pulper comprising a fixed sorter part, whereupon a coarse-screened pulp from which the greatest contam...
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WO/1995/025196A1 |
Chemimechanical groundwood is manufactured of wood pieces with a length in the fiber direction of at least 300 mm. A batch of wood pieces oriented with the fibers in one and the same direction is introduced into a closed press chamber (1...
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WO/1995/024967A1 |
A process for recovering the cellulose flock component of used disposable sanitary non-woven cellulose articles (D), especially diapers (D) having also a plastics component and a superabsorbent polymer component, comprising: separating t...
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WO/1995/022651A1 |
Methods for processing wood chips (54) for digestion utilize a chip destructuring apparatus. The method includes an initial disc screen (42) for removing the gross overthick and oversized chips which are discarded or are processed throug...
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WO/1995/019232A1 |
A tensioning member for a blade screen that permits simultaneous tensioning of a plurality of blades in a blade screen, such as for wood chip sorting. The blade screen tensioning member includes a hinged bracket (18) that may be supporte...
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WO/1995/017243A1 |
A device for admixing a processing agent to a pulp suspension. The device comprises a cylindric lower portion (10) of a vessel with an agitator (11) fitted into the wall of said vessel portion, which agitator is intended to bring about a...
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WO/1995/015412A1 |
A newspaper de-inking system and process require much less water than conventional de-inking systems and require much lower capital expenditure. The system (10) removes ink from newspaper pulp in a continuous process using one or more ex...
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WO/1995/015252A1 |
A process for forming molded articles from partially delignified non-woody lignocellulosic materials (10) is disclosed that includes forming a mass of fibrous pulp partially delignified lignocellulosic material from a water suspension th...
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WO/1995/014810A1 |
The invention relates to a method and a device for feeding out fibre pulp over an overflow rim (2) at the upper end of a cylindrical container (1), through which the pulp, which is suspended in liquid, is being fed continuously from the ...
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WO/1995/014133A1 |
A wood chip cracking device (20) for use in papermaking employs closely spaced, oppositely rotating rolls (24, 26) which have pyramid-shaped projections (38) on the roll surfaces (32, 34). This chip destructuring apparatus (20) is render...
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WO/1995/013148A1 |
An apparatus for treating process material includes a vessel into which process material can be introduced, an arrangement for introducing steam into the interior of the vessel to heat and impart moisture to process material in the vesse...
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WO/1995/012711A1 |
A method for manufacturing fiber boards comprising the steps of desintegrating the fiber raw material while exposing individual fibers from the same, diluting the fibers in water while forming a beating material which is distributed on a...
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WO/1995/012550A1 |
A process for separating printing ink from recycled paper fiber (20) includes the steps of repulping recycled paper furnish with water in a rotary mixer (10) for about 5 minutes at a consistency of 6 % to 18 % with a mixing element (16) ...
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WO/1995/012024A1 |
A defibrator (1) is disclosed which makes it possible to distribute defibrated cellulosic fibers directly onto a forming wire (5). The defibrator (1) comprises ribs (33) extending inside a cylindrical housing (24). The ribs have outer cu...
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WO/1995/012025A1 |
A method is disclosed for production of a fibrous product containing curled fibers. Rectilinear bi-component fibers (17) are applied to the upper side of a raw material sheet (2) before it is introduced into a defibrator (1). Immediately...
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WO/1995/011334A1 |
Wastepaper containing printing ink is refined in the presence of the reaction products of castor oil with an alkoxylated fatty acid, alcohol, amine, amide, phosphate ester, polyhydroxy alcohol, or sorbitan, and the detached printing ink ...
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WO/1995/009267A1 |
The application presents a method of treating chips with a chemical solution. In the method air is removed from the chips by using a vacuum, the vacuum-treated chips are put under a chemical solution pressure of no less than about 1 atm ...
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WO/1995/008667A1 |
An apparatus (10) for producing elongate multi-fiber of extremely small size. A housing (12) is provided having first and second ends and a substantially smooth interior surface. A means is provided for introducing high consistency wood ...
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WO/1995/007384A1 |
In a process for making a granular material from a reject stream from a coated grade waste paper pulp stock recycling process, the pulp stock is screened so that the reject stream passes through a screen and long fibers are retained for ...
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WO/1995/004779A1 |
Fiber-reinforced protein-based biocomposite particulate material containing a legume-based thermosetting resin and cellulosic material, and rigid biocomposite pressure-formed materials produced therefrom, are provided. The particulate ma...
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WO/1995/004189A1 |
The present invention relates to a method and an apparatus for treating of recycled fiber material or of the reject fraction discharged from the cleaner system of the short circulation of a paper machine for the recovery and return of th...
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WO/1995/004186A1 |
An improved method of processing baled waste material by enclosing the bale within a closed chamber (12) and subjecting the chamber and contained bale to multiple pressure environmental conditions, while submerging the bale in a debondin...
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WO/1995/001918A1 |
A bar screen for wood chips or the like, including at least two interacting screen elements (2, 7, 3, 8) having first parts connected to driving means (4) which impart preferably counter-directed relative movements to the screen elements...
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WO/1995/000245A1 |
A refiner segment for disc refiners for desintegration of lignocellulose-containing material, where the refiner segment (1) is formed with a pattern of bars (2) and grooves (3), and where dams (4) are placed in the grooves. The dams (4) ...
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WO/1994/028233A1 |
Wood pulp sheeting used as feedstock in a cellulosic fibre production plant is comminuted by hooking laminated platelets of wood pulp from a pluri-layer web of such sheeting and agitating the platelets in a fan generating a conveying gas...
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WO/1994/028234A1 |
A method of making feedstock from material supplied in rolls of flexible sheet material which comprises the steps of creating a pluri-layer web of "n" different layers of sheet material, each layer being selected with regard to some know...
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WO/1994/028235A1 |
The invention concerns a method of processing recycled paper which contains so much wax, hot melts or stickies that they would be expected to cause a stoppage of the paper-manufacturing machine, the paper to be recycled being pulped in a...
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WO/1994/025667A1 |
An apparatus for treating a pulp slurry of waste paper including long fibers, short fibers and large and fine impurities includes the step of spraying the slurry through a gaseous medium upon a screen to separate long fibers and large im...
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WO/1994/023847A1 |
A screening means for a vessel for treating chips, having a screening body and a screw rotating therein. According to the invention the screening body has support rings (15) with radial recesses (16) to receive screening bars (8), the wi...
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WO/1994/024364A1 |
The invention discloses various methods for separation of laser and xerographic printed paper waste containing ink having a magnetic component from other paper waste products containing ink which does not contain any magnetic material, b...
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WO/1994/021854A1 |
The fungi Schizophyllum commune, Trichaptum biforme and Phanerochaete gigantea are useful in reducing the pitch content of pulps and pulpwoods used in making cellulosic products.
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WO/1994/020667A1 |
The invention concerns an enzymatic process for pretreatment of wood raw-material which makes it possible to reduce the specific energy consumption of mechanical pulping and to improve the technical properties of the fibres. Cellobiohydr...
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WO/1994/020682A1 |
A composition containing a persulfate and a carbonate, a bicarbonate or sesquicarbonate, which composition is suitable for oxidizing wet strength resin based broke used in wet strength paper. The combination decreases the time required f...
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WO/1994/020670A1 |
A process is disclosed for producing chemomechanical and/or chemothermomechanical wood products from lignocellulosic raw materials, such as wood chips. The raw materials are impregnated with a SO2-containing solution and then subjected t...
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WO/1994/020669A1 |
The invention concerns a method of digesting recycled paper at a concentration between 8 and 15 % in a closed container, supplying gas or steam at an overpressure between 0.2 and 4 bar and at temperatures between 90 and 150 �C and subs...
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WO/1994/020668A1 |
First and second washing machines (13, 15) are utilized to clean plastic (87) and cellulose (53) from disposed diapers (49) for recycling. The disposed diapers (49) are loaded into the first washing machine (13) and, while being agitated...
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WO/1994/020671A1 |
A method to control a manufacturing process for cellulose, pulp or similar by measuring the bulk density of the chips supplied to the process. A representative volume of the supplied chips are sampled and supplied to a measuring method, ...
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WO/1994/020666A1 |
The invention concerns an enzymatic process for pretreatment of wood raw-material which makes it possible to reduce the specific energy consumption of mechanical pulping and to improve the technical properties of the fibres. Cellobiohydr...
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WO/1994/018382A1 |
A method for producing chemi-thermomechanical pulps (CTMPs), wherein wood chips are dipped in chemical reagents; the chips are mechanically defiberized (primary refining) in a pressurised steam atmosphere to give a raw pulp; and said pul...
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WO/1994/018383A1 |
The present invention relates to a method of producing chemi-mechanical pulp, comprising grinding wood in a grinding mill housed in a grinding chamber, maintaining the chamber at an overpressure and spraying water onto the wood. The inve...
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WO/1994/018388A1 |
The invention concerns dispersion of the cellulose based fibres in straw by the aid of alkali and strong mechanical agitation. This solubilizes the pentosane in the straw, and turns the mixture into a high viscosity paste, so that the fo...
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WO/1994/018384A1 |
The invention describes a method for dispersion of cellulose based fibers in water. The raw material, which particularly may be recycled paper, is first wetted with water. By a combination of addition of hydrocolloid which binds water, a...
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WO/1994/017920A1 |
A suitably conditioned slurry feed is introduced to a trough (1) from which it is distributed into a slurry layer-flow forming chamber (2). Chamber (2) is provided with a discharge weir (3) which discharges an evenly spread layer of slur...
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WO/1994/016139A1 |
A method of producing mechanical and chemi-mechanical pulp with a yield above 85 % from lignocellulose-containing material for the manufacture of paper or board products. The material is subjected to mechanical processing in at least two...
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