Abstract: The present invention relates to a winding section (10) and to an apparatus (20) in a slitter winder for bringing a fastening means onto the surface of each partial web (w?). The apparatus (20) has an applicator head (22, 22?), which is arranged to apply the fastening means onto the web surface. The apparatus (20) has support members (24) by means of which the apparatus can be mounted into the slitter winder and by means of which the apparatus (20) can be arranged movably substantially in a cross-direction with respect to the slitter winder.

Abstract: Invention relates to a roll cover and a covered roll for paper, board, finishing and tissue machines. More specifically it relates to a roll particularly used in calendar which roll comprises a metal roll body and a cover of a composite material on it. The cover has at least three layers which comprise polymer matrix and fiber reinforcement the material of the being different at least in successive layers.

Abstract: A load measuring device for measuring a load acting on an elastically deformable member, has a distance sensor for measuring a length change in response to a deformation of the deformable member under a load. The sensor has a sensing element and a reference element arranged such that a portion of the elastically deformable member is interposed between the sensing element and the reference element. For paper manufacturing or finishing, two members between which the load is measured are cooperating rolls, at least one of which is provided with an elastic cover. One of the rolls includes the sensing element and the other roll includes the reference element. Alternatively, the two members are a roll and a cooperating belt, one having an elastic cover. Also, the sensing element and the reference element may be formed in one and the same member.

Abstract: An apparatus (24) for inserting an endless, flexible clothing (15) in or removing such a clothing from an industrial machine in which the clothing is arranged to run in an endless loop, comprising first and second units (25, 26) between which the clothing is to be fed in an advancement direction (F) essentially transversal to the run direction of the clothing in the machine.

Abstract: An aqueous composition is provided having a pH of from about 2.0 to about 12.8 and comprising boron or persulfate ion-crosslinked polyvinyl alcohol microcapsules. A method of delivering an agriculture active to a substrate is further provided comprising applying to the substrate an aqueous composition comprised of agriculture active containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules, as well as a method of treating a substrate to protect from pests or promote crop growth comprising applying to the substrate an aqueous treating composition comprised of agriculture active containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules.

Abstract: A sound attenuator for low frequencies in an air-conditioning duct of paper mills includes a sound attenuator frame insertable in the air-conditioning duct. At least one attenuator member operating according to the plate resonator principle has a first resonator plate, a framework, whereto the first resonator plate is attached by its inner surface, and a second plate, which is essentially parallel to the first resonator plate. The second plate is attached to the framework by its inner surface, whereby the second plate, the framework and the first resonator plate delimit at least one attenuator unit. The first resonator plate, attached to the framework, is a steel plate and is attached to the framework by laser welding and the framework comprises a pressure balancing opening.

Abstract: A set changing device of a slitter-winder has a pusher device for pushing completed wound fiber web rolls (10) of partial webs cut with a slitter-winder and carried by carrier means (11, 18?) forward from the winding-up section (1). The pusher device has at least two press rolls. The position of at least one of the press rolls (2, 3) with respect to the body (17) of the pusher device (6) is arranged to change during pushing.

Abstract: A fiber mass suspension is produced by mixing together a fiber material (FM) and water (W) in a pulper (1). The formed fiber mass suspension is divided into an accept fraction and a reject fraction. The reject fraction is supplied continuously to a first secondary pulper (2) for further screening and defibring. The accept fraction formed in the first secondary pulper (2) is supplied continuously for further processing and the reject fraction formed in the first secondary pulper (2) is supplied continuously to a second secondary pulper (3) for further processing. The accept fraction formed in the second secondary pulper (3) is supplied continuously for further processing.

Abstract: An improved method for treating lignocellulosic material, including a prehydrolysis-mass transfer process, which produces a concentrated hydrolysate volume during the time required for the hydrolysis itself. The improved process comprises the heating of the digester and chip content by direct steam to the required hydrolysis temperature, starting a flow of hot, stored hydrolysate to the top of the chip bed in order to create a trickle-bed type down-flow of hydrolysate, collecting a first fraction of the trickled-down hydrolysate as a product fraction, adding extraction liquid and continuing the trickle flow to collect a second hydrolysate fraction, which will be discharged from the digester to a hot hydrolysate storage tank to be used as the first trickle flow liquid in the next batch.

Abstract: Methods for bleaching oxygen delignified and washed pumps having a consistency of between 8 and 20% are disclosed including a first chlorine dioxide bleaching step, washing the bleached pulp, subjecting the washed pulp to an alkaline extraction step to obtain an alkali-containing pulp, adding chlorine dioxide and adjusting the pH in a second chlorine dioxide bleaching step performed directly after the alkaline extraction step without an intermediate washing step, and subjecting the bleached alkali-containing pulp to a peroxide treatment step directly after the second chlorine dioxide bleaching step or with an intermediate washing step prior to the peroxide treatment step.

Abstract: An aqueous composition is provided having a pH of from about 2.0 to about 12.8 and comprising boron or persulfate ion-crosslinked polyvinyl alcohol microcapsules. A method of delivering an agriculture active to a substrate is further provided comprising applying to the substrate an aqueous composition comprised of agriculture active containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules, as well as a method of treating a substrate to protect from pests or promote crop growth comprising applying to the substrate an aqueous treating composition comprised of agriculture active containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules.

Abstract: A method of forming an opaque image on a substrate is generally provided. The method generally includes the use of three papers: a toner printable sheet, a coating transfer sheet, and an opaque transfer sheet. Toner printing can be utilized to print an image on the toner printable sheet, and then the toner ink can be utilized to remove a portion of a melt coating layer from the coating transfer sheet to form an intermediate imaged coated transfer sheet. This intermediate imaged coated transfer sheet and the opaque transfer sheet can then be utilized to form an image, defined by the opaque areas, on a substrate.

Abstract: A heat transfer paper configured to reduce the amount of stray toner on a heat transfer material, especially when the image is formed via a laser printer or laser copier, is generally disclosed. The heat transfer material includes an image-receptive coating overlying a splittable layer and a base sheet. The image-receptive coating includes thermoplastic polyolefin wax microparticles, a thermoplastic binder, and a humectant. The thermoplastic polyolefin wax microparticles have an average particle size of from about 30 microns to about 50 microns and melt at temperatures between about 130° C. and about 200° C.

Abstract: 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) of greater diameter (D2) such that the first end is directed towards the flat portion and the second end is directed away from the flat portion. The refining surface (12) of the conical portion of the stator comprises at least an outer zone (23) arranged at the second end of the conical portion and an inner zone (22) arranged relative to the outer zone on the side of the first end of the conical portion. A portion of the length of the blade bars (20) in the outer zone are arranged relative to the rotation direction (RD) of the rotor such that they have a retentive effect on the material to be refined. Also a blade segment (19) for a conical portion of a stator of a refiner.

Abstract: In a method for detaching a web threading tail from a moving surface in a fiber web machine, the web threading tail (12) is detached from a moving surface (23) by means of air that flows from a blow-off blow channel (19) included in a blade holder (14). A trailing blow (26) is directed to the web threading tail (12) using air that flows from a trailing blow channel (17) included in the blade holder (14). The blade holder (14) includes a flow surface (32), and the trailing blow (26) is blown to the same direction with or in a small angle relative to the flow surface (32). The invention also relates to a corresponding blade holder and a doctor apparatus for detaching a web threading tail from a moving surface in a fiber web machine.

Abstract: Washing apparatus is disclosed comprising one or possibly two co-operating cylindrical press rolls, each having a perforated outer surface. A guide surface is provided at a distance from the perforated outer surface and encloses the respective press roll in the circumferential direction over at least 225° of the roll's circumference, wherein a pulp passage is provided between the perforated outer surface and the guide surface. During operation, pulp that is fed into the pulp passage is guided in a direction of rotation of the respective press roll and is pressed in a pinch between the press rolls. The radial distance between the outer surface of the press roll and the guide surface is substantially the same throughout a portion of the pulp passage in the circumferential direction.

Abstract: A method and a system for controlling the manufacturing or finishing process of a fiber web at a transition stage of the process. In the method a corrected error profile (PD?k) is formed using an error profile (PD). Using the corrected error profile (PD?k) at least one control signal (CAk) is determined for the actuators (6) of the manufacturing or finishing process of a fiber web.

Abstract: The invention relates to a system for transporting a fibre web (47) through a dry end of a fibre web processing machine from a drying section (1) to a reeling section (2) of the machine. According to the invention, the system comprises one or a plurality of groups of air modules, wherein each group of air modules is arranged for supplying and evacuating air from a predetermined, localized zone along the web run of the dry end, and wherein each group of air modules comprises at least one air supply module (9) being arranged for supplying air to the localized zone; and at least one air exhaust module (10) being arranged for evacuating air from the localized zone, wherein the air flow-rate of said at least one air supply module is balanced by the air flow-rate of said at least one air exhaust module such that dust-laden air is prevented from escaping the localized zone by other means than through said at least one air exhaust module.

Abstract: The invention teaches continuous process for rapidly drying a population of pressure sensitive microcapsules.

Abstract: A refining segment intended for refiners of disc-type for working fibrous material. A first portion has a first pattern of coarse bars and a second portion has a second pattern of fine bars. The second portion is positioned outside the first portion. The second pattern has a higher density of bars than the first pattern. The refining segment has a deflector arrangement protruding from a bar surface of the coarse bar. The bar surface faces the rotational direction. The deflector arrangement has a deflector surface directing a flow of fibrous material away from the bar surface. A refining apparatus has two opposing rotatable refining discs, separated by a refiner gap. At least one of the two refining discs has the above described patterns and deflector arrangements.