Metso Paper Inc.

Jyvaskyla, Finland

Metso Paper Inc.

Jyvaskyla, Finland
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Patent
Metso Paper Inc. | Date: 2014-04-23

The invention pertains to a belt assembly adapted to move a web from a press section of a paper or board making machine to a dryer section of the machine. The belt assembly comprises a combination of a first (11) and a second press roll (15) forming a first press nip, a third press (13) roll forming a second press nip with the first press roll (11), one or more stretcher/guiding rolls (19, 17) to be arranged between the press section and the dryer section. A heat conductive metal belt (21) that forms an endless loop and that is impervious to fluids passes through the first press nip and over the first press roll (11), through the second press nip and over the one or more stretcher/guiding rolls (19, 17). One of the one or more stretcher/guiding rolls (17) is arranged in close proximity of the second press roll (15) such that a portion (21a) of the metal belt (21) wraps a circumferential portion of the second press roll (15) thereby extending the first press nip by means of the wrapped metal belt (21a), thus, forming a metal belt tension nip.


The invention relates to a device for taking a wood sample from a load of wood logs while on a vehicle. The device (13) is a manipulator (14) equipped with a probe (15), and the probe (15) is arranged to reach to at least a half of the dimension of the load (12) in the direction of the sample-taking direction (16). The invention also relates to a method and system for taking a wood sample from a load of wood logs while on a vehicle.


Patent
Metso Paper Inc. | Date: 2014-04-02

The invention relates to a rod-bed assembly comprising a holder (30), an insert (20) removably and insertably supported in a groove (31) of the holder (30) and which rod-bed assembly is for a rod (10) rotatably sup-ported in a recess (21) on front side of the insert (20). The material thickness (T) of the cross-section of the insert (20) is between 1 - 5 mm. The invention also relates to a rod -rod-bed assembly.


Patent
Metso Paper Inc. | Date: 2014-04-30

The invention relates to a method for producing a fiber web, in which water resistance of the fiber web is increased by decreasing water solubility of sizing agent used for production of the fiber web by using as sizing agent starch originating from grain or by using a chemical additive in the sizing agent which chemical additive creates bonds with reactive groups of the sizing agent and cross-links and/or decreases water solubility, in particular with an insolubilizer. The invention also relates to a method for producing a fiber web, in which a multilayer sizing process is used in which sizing agent is applied on the fiber web in at least two stages so that a layered sizing profile is achieve in the thickness direction and that in the multilayer sizing process the layers of sizing agent comprise in different layers sizing agents of at least two different compositions. The invention further relates to a process for producing a fiber web comprising sizing of the fiber web by sizing agent. In the sizing the sizing agent is provided in at least two stages of sizing to create a multilayer profile of the sizing agent onto the fiber web and that for at least one layer of the multilayer profile a sizing agent with decreased water solubility is used.


The invention relates to a method for surface treating a coated fiber web in a fiber web machine and to a coating station (1). A surface treating agent (6) is applied to the second surface (2b) of the travelling fiber web (2) such that the surface treatment agent (6) is applied to the fiber web (2) at the same coating station (1) as the coating is applied. The coating station (1) comprises means for applying surface treatment agent (6) to the second surface (2b) of the travelling fiber web (2).


The invention pertains to a web pressing and dewatering method using a pressing apparatus for a paper- or board-making machine for removing fluids from a web by pressing. The pressing apparatus comprises at least one belt (1) adapted to guide the web (W), wherein the belt (1) is impervious to fluids and forms an endless loop, a press roll (3) and a pressure means forming a press nip by wrapping the belt (1) about a circumferential portion of the press roll (3), through which press nip the guided web (W) is arranged to pass. The pressure means comprises a pressure chamber separated into at least two separating portions (9, 11) each of which comprising a particular pressure medium, the pressure chamber extending along the length of the press nip in the web (W) moving direction such that the particular pressure medium directly contacts the belt (1). The pressing is performed by using different pressure media in each of the at least two separating portions (9, 11) of the pressure chamber.


Patent
Metso Paper Inc. | Date: 2014-01-08

The invention relates to process for treating a fiber web, especially a board web, in which process fiber web is guided into a processing zone that is created in between a belt (21) and at least one cylinder or roll (14, 16) and/or in between two belts (22, 23), in which processing zone the fiber web (w) is treated, advantageously calendered, during a dwell time. In the process the fiber web is treated in the processing zone for a long dwell time for at least 200 ms and in moderate temperatures in the range of 60 - 180 C. The processing zone comprises at least three stages in any order: a short-treatement stage, a loading stage and a long-treatment stage. In the short-treatment stage the dwell time is less than 200 ms and the load is 0,01- 10 MPa. In the loading stage the dwell time is 1 20 ms and the load is 0,1 100 MPa. In the long-treatment stage the dwell time is more than 100 ms and the load is 0,01 10 MPa. The invention also relates to a device for treating a fiber web.


Patent
Metso Paper Inc. | Date: 2014-01-01

The invention relates to a reel-up which comprises two pairs of carriages (23, 26A, 26B) for moving a reeling shaft (15) and a parent roll (20) to be reeled around a reeling shaft (15) supporting the reeling shaft (15) at its each end and center drives (24, 29) for rotating the reeling shaft (15). In the reel-up (10) one carriage (26A, 26B) pair is located inside the guides (11, 12) and provides for the secondary carriages (26A, 26B). In the reel-up (10) at least a secondary center drive (29) is located outside the guides (11, 12). At least for moving the secondary drive (29) and the secondary carriages (26A, 26B) the reel-up (10) comprises at least two actuators and at least the secondary drive (29) and at least one of the secondary carriages (26A, 26B) are synchronized electrically. The invention also relates to a method of reeling a fiber web in a reel-up.


Patent
Metso Paper Inc. | Date: 2014-03-26

The invention relates to a loading roll of locking and loading means for a reeling shaft of a reel-up for a fiber web, which loading roll (30) is provided for locking and/or loading the reeling shaft (15) of a reel-up (10). At least partially the loading roll (30) is made of elastic material.


The invention relates to a method for producing a fiber web (W), in which method the fiber web (W) is calendered in at least one calendering nip (NA; NB) of at least one calender (20A; 20B) and reeled up in a reel-up (40). The fiber web (W) is cooled by cooling means (10A; 10B) before calendering to temperatures of not higher than 40 C, preferably to temperature in the range of 10 - 30 C. The invention also relates to a production line for producing fiber webs (W), which comprises at least one calender (20A; 20B) with at least one calendering nip (NA; NB) and a reel-up (40) after the calender (20A; 20B). The production line comprises at least one cooling means (10A; 10B) before the at least one calender (20A; 20B) for cooling the fiber web to temperatures of not higher than 40 C, preferably to temperature in the range of 10-30 C.

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