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WO/2000/038919A2 |
The invention relates to a device for marking a thin, continuously moving material web (1), preferably a paper web. The invention provides for a rotationally mounted print head (2) for applying a marking ink to the material web (1) which...
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WO/2000/036402A1 |
An apparatus (10) for measuring the location of a release line (17, 17a) of a paper web (14) from a rotating device (13) of a papermaking machine includes a distance measuring device (12a, 12b, 12c) repeatedly measuring the distance betw...
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WO/2000/034575A1 |
Properties of paper are controlled by modelling the effect of at least one variable (f¿D?) of the paper dryer section on the paper moisture (Moi) and the effect of the stock flow (F¿ts?) and/or stock composition and the flow of retenti...
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WO/2000/034578A1 |
The invention relates to a method and system for executing grade change in a paper machine. In the method, a controller (120) controls at least two input variables affecting the paper machine process, which variables affect the same outp...
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WO/2000/034577A1 |
The invention relates to a transfer means for transferring a threading strip or a web of material within a machine for producing and/or treating the web of material from a take-over zone to a transfer zone along the path of the material....
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WO/2000/034573A1 |
A method for controlling the drying process taking place in the dryer section of a paper machine or the like. The dryer section comprises at least one drying cylinder unit (26, 28, 30, 32, 34) and at least one air impingement unit (20, 2...
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WO/2000/032870A1 |
Several paper grades are finished in a supercalender (1) or similar calender types in order to increase the smoothness, gloss and other properties of the paper. According to the invention, the method for producing coated and calendered p...
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WO/2000/032869A1 |
The beam comprises a continuous body (11) made of a composite material and end pieces (13) fitted at each end of the body (11) and axle journals (12) fitted on the end pieces (13). Each axle journal (12) is supported on the frame constru...
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WO/2000/031338A1 |
The invention concerns a method and a device for measurement and regulation of the retention profile of the web in a paper/board machine. In the method, from the white water drained from the web through the wire in the wire part, samples...
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WO/2000/029669A1 |
The invention relates to a doctor for a suction roll particularly in a paper machine, which doctor (10) is intended to remove water from a suction roll (15). The doctor (10) includes a doctor slat (12) fitted against the surface of sucti...
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WO/2000/028137A2 |
A device for impregnating a moving web, such as a pulp web, comprises a tub containing impregnating fluid, one or more transporting drums installed in series along the path of motion of the impregnated web in the tub, two continuous web-...
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WO/2000/028140A1 |
The invention relates to a device for feeding a thread or a material strip within a machine for producing and/or processing said material strip which comprises a suction hose (3) which can be subjected to underpressure in addition to a h...
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WO/2000/026610A2 |
Detection of the thickness of a moving web, whereby optical methods are used in a contactless manner and the spectra (1) are evaluated with chemometric methods, is already known per se. According to the invention, an evaluation method (1...
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WO/2000/019013A1 |
The invention relates to a device for conveying and guiding a lead-in strip in a paper machine, which device comprises a conveyor belt (20) which is permeable to air and in whose connection devices (15) are fitted by whose means a vacuum...
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WO/2000/017531A1 |
The invention relates to a slide shoe assembly for a roll (1) in a paper/board machine or a finishing machine, said roll (1) comprising a stationary axle (4), around which is rotatably mounted a cylindrical roll shell (2), a clearance (5...
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WO/2000/017530A1 |
The roll comprises a stationary support construction (11) and a roll mantle (12) revolving around said construction, which mantle is supported from its inner face (12') on the support construction (11) by means of at least one hydraulica...
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WO/2000/017447A1 |
A doctor arrangement for roll presses includes for each press roll (1, 2) a web transfer device (6, 7) which lies in abutment with the barrel surface of its respective roll or in abutment with a wire mounted on said barrel surface. The w...
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WO/2000/017446A1 |
A paperboard product (w) having at least one layer of bleached or semi-bleached pulp and having improved smoothness and reduced bulk loss. For paperboard having sizing without pigment, the smoothness on the printed side as measured by th...
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WO/2000/015904A1 |
A doctor blade for use in cleaning of a roll in a paper machine. The doctor blade comprises a thermosetting plastic polymer material, whose glass transition temperature Tg is 20...30 °C higher than its operating temperature, and the res...
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WO/2000/011266A1 |
Method and assembly for guiding a web of paper or board or, alternatively, an edge strip sheared therefrom, in a paper machine or finishing equipment, the method being particularly suited for threading the web tail or edge strip through ...
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WO/2000/009805A1 |
A method for changing the natural frequency of a nip roll construction in a paper or board machine. In the method, the bearing elasticity of a hydrostatic bearing element (10, 20, 30, 40) of at least one roll (1) in the nip roll construc...
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WO/2000/009432A1 |
In the treatment process of a paper web, the paper web (W) travels via a surface journalled rotatable, such as a peripheral surface of a cylinder or a roll (1), and the treatment process is controlled with an adjustment and control unit ...
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WO/2000/008255A1 |
Apparatus and method for grinding levelling of paper, cardboard or a similar continuous web manufactured from vegetative based fibrous raw-material, said apparatus comprising a plurality of grinding means such as rolls or belts preferabl...
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WO/2000/005451A1 |
The bone-hard supercalender roll (10) of the present invention comprises: an elongate shaft (12) having a longitudinal axis; a core layer (20) formed of fibrous material circumferentially covering the shaft; means for compressing the cor...
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WO/2000/005450A1 |
The invention concerns a method and a device for changing the natural frequency of a nip roll construction in a paper or board machine so that the rigidity of one or several loading elements, for example loading cylinder or loading beam,...
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WO/2000/005512A2 |
The invention relates to a roller (100) for exerting pressure on fabric webs, comprising a hollow cylinder (1) which supports the working cylinder circumference (4) and can be rotated about its axis A, a crosshead (5) which passes throug...
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WO/2000/004227A1 |
A method for damping vibrations in a paper machine environment by means of a dynamic absorber. The vibrations of a vibrating object are measured (6) and an amplified (7) measurement signal is passed to a data processing device (8), in wh...
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WO1999037855A9 |
The invention concerns a storage box (10) for doctor blades employed in servicing of the face of a roll in a paper/board machine. The box is a polygon construction, in whose interior the reel (R) formed by doctor blades (t1, t2) has been...
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WO/2000/004228A1 |
An apparatus for damping vibrations in a paper machine environment by means of a dynamic absorber. The apparatus comprises at least one vibration detector (6), by whose means the vibrations of a vibrating object are measured, and an ampl...
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WO/2000/004226A1 |
The invention relates to a device for transferring a threading strip or material web, within a machine for producing and/or processing said material web, from a receiving area to a transfer area along a web travel path. Said device compr...
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WO/2000/003088A1 |
In the method for manufacturing calendered paper, paper is calendered after drying. The paper is dried (D) down to a moisture lower than the target moisture of calendering. The paper is run via wetting (1) to calendering, wherein at leas...
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WO/2000/003086A1 |
In the method in moistening of a web, water is applied with a wetting device (2) in a predetermined point on the surface of a paper web (W) or the like passing by the point, and the web is thereafter passed to a calender (C). The liquid ...
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WO/2000/003087A1 |
In the method for manufacturing surface-treated printing paper, a paper web is first dried down to a target moisture of the surface treatment, and it is wetted again to the target moisture before the surface treatment. The re-wetting to ...
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WO/2000/001885A1 |
A doctor used in a paper machine, which is intended to remove waste pulp from a roll (T1). The doctor (10) is supported on a beam (11). The doctor (10) includes a doctor blade (10.1) and a corresponding blade holder (20.1) that is essent...
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WO/2000/001882A1 |
Non-woven webs are produced from cellulose, synthetic, or glass fibers utilizing a foam-laid process by employing fuzzy controllers. By using a fuzzy controller, it is possible to precisely control the foam-laid process to allow producti...
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WO/2000/001884A1 |
The invention concerns an equipment and a method for passing a paer/board web into a pulper. The equipment comprises a needle-nozzle pipe (22) in connection with a roll (13), out of which needle-nozzle pipe needle-like water jets are app...
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WO/2000/000296A1 |
The invention concerns a composite blade (1) comprising a substrate strip (2) providing the blade with its main mechanical properties, an interface coating (3), bonded to one surface of said substrate, and adapted on the other surface, i...
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WO/2000/000695A1 |
The invention relates to inventive methods for smoothing fibre strips (6), preferably paper or cardboard strips, in a chemical engineering process, whereby a medium (13) consisting of several constituents (14, 15) is applied in front of ...
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WO/2000/000696A1 |
The invention concerns a method for controlling the surface properties and/or curl and/or tension and/or moisture and/or tension profile and/or moisture profile of paper, in which method moistening of the paper web (W) is used. The paper...
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WO/2000/000694A1 |
The invention relates to a roller group for a calender provided for processing material webs. The roller group is comprised of at least two rollers respectively having a roller body made of a cast or forged ferrous material. At least one...
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WO/1999/067462A1 |
A method for calendering paper or board in the manufacture of coated grades of paper or board. According to the method, at least one of the surfaces of an uncoated base material web is calendered, at least one layer of coating mix being ...
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WO/1999/066220A1 |
The invention relates to an arrangement for displacing a roll, which is hydrostatically journalled by its axle (1) on support structures and positionable in its working position by means of a bearing, through a rapid movement of the bear...
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WO/1999/066126A1 |
The invention concerns a method and a system for regulation of the nip profile in a nip (N) formed by a roll (10) adjustable in zones and by backup roll (20). The nip (N) is loaded adjustably by means of hydraulic glide shoes (13) in the...
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WO/1999/066125A1 |
The invention concerns a method for regulation of a roll adjustable in zones, which roll (10) adjustable in zones forms a nip (N) with a backup roll (20). A paper or board web (W) is passed through the nip (N) in view of controlling the ...
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WO/1999/064963A1 |
The system controls formation of wet stock (55) comprising fibers on a moving water permeable wire (13) of a de-watering machine that has a refiner (135) that is subject to a variable load and a headbox (10) having at least one slice (50...
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WO/1999/064674A1 |
The invention relates to an apparatus comprising a holder (2) for a doctor blade and a blade (1) to be fitted in the holder for use in a paper or board machine. The holder (2) and/or the blade (1) comprises a composite material of whose ...
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WO/1999/064752A1 |
The invention relates to a control system for bearings for a hydrostatically journalled paper, board or finishing machine roll (2), constituting a nip (N) with a backing roll (1), for opening and closing the nip (N) and for establishing ...
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WO/1999/064669A1 |
A method for regulation of the surface level (L20) and the consistency (Cs¿20?) in a stock chest (20) for metering of a component stock (M¿1?). Stock is fed as an outward flow (F¿11?) out of the bottom portion (10a) of a stock column ...
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WO/1999/064665A1 |
A method for regulation of the basis weight of paper or board in a paper or board machine in which the machine stock (M¿T?) is composed of a number of component stocks (M¿i?) and in which the basis weight of the dry paper or board is m...
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WO/1999/064675A1 |
A plurality of random probing sequences are used to perturb a corresponding plurality of CD actuators of a web manufacturing machine. The web of sheet material is measured as the CD actuators are perturbed. The global process MD dynamics...
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