Abstract: The purpose of the present disclosure is to provide a method for producing pulp fibres for saccharification from the pulp fibres of used sanitary items, said pulp fibres for saccharification having low lignin contents distributed within a narrow range, and enabling the production of pulp fibres for saccharification having superior saccharification properties.

Abstract: A sheet manufacturing method includes forming a web by accumulating a mixture containing a fiber and a water-soluble polysaccharide in a dry manner, a moisture imparting step of imparting the web with moisture, and a pressurizing and heating step of pressurizing and heating the web to which the moisture is imparted, in which the pressurizing and heating step performs pressurizing and heating at the same time, a pressure higher than a pressure applied to the web in the pressurizing and heating step is not applied to the web before the pressurizing and heating step, and heating to a temperature higher than a temperature for heating the web in the pressurizing and heating step is not performed before the pressurizing and heating step.

Abstract: A sheet manufacturing apparatus including an accumulating unit that causes a defibrated product to accumulate in a dry manner and forms a web, a moisture adding unit that adds moisture from a side of one surface of the formed web such that a moisture content of the web is equal to or more than 12 mass % and equal to or less than 40 mass %, and a heating unit that heats the web to which moisture is added. The heating unit has a first portion that comes in contact with the one surface of the web and a second portion that comes in contact with another surface of the web, and the heating unit heats the web in a state of a surface temperature of the first portion being higher than a surface temperature of the second portion.

Abstract: An assembly for a papermaking machine includes: a seal strip with an upper surface configured to provide a seal for a suction roll; a seal strip holder, the seal strip residing in the seal strip holder and movable relative thereto; and a wear monitoring system. The wear monitoring system may include a magnet and magnetic field sensors or an ultrasonic transducer to monitor movement of the seal strip relative to the holder, thereby indicating wear.

Abstract: A tire has a tread portion bound with an intended rotational direction. The tread portion is provided with at least one block. Each block includes a ground contacting surface, which is defined by edges, and side surfaces positioned radially inside the ground contacting surface. The edges include a heel-side edge located on a heel side in the rotational direction and a toe-side side edge extending toward a toe side in the rotational direction from the heel-side edge. The heel-side edge is connected to one of the side surfaces without having a chamfer portion therebetween. At least a toe-side region, which is a region positioned on the toe side in the rotational direction, of the toe-side side edge is connected to the side surfaces each with the chamfer portion therebetween.

Abstract: A fiber body forming apparatus including an accumulating unit that has a release unit that releases a material containing a fiber and that has an accumulating member on which the material released from the discharging unit accumulates, a sheet substrate supply unit that supplies a sheet substrate to a position vertically below the release unit, and a control unit that controls operation of the accumulating unit and the sheet substrate supply unit, in which the control unit controls the operation of the accumulating unit and the sheet substrate supply unit to selectively execute a first mode for causing the material to accumulate on the accumulating member and the second mode for supplying the sheet substrate to the position vertically below the release unit and causing the material to accumulate on the sheet substrate.

Abstract: A defibrated material manufacturing device is configured to defibrate a feedstock of clumps of shreds containing fiber into defibrated material. The defibrated material manufacturing device has a removal device, a metering device, storage device, and a defibrator. The removal device is configured to remove at least a part of foreign matter contained in the feedstock. The metering device is configured to measure the feedstock that has passed the removal device. The storage device is configured to store a measured feedstock measured by the metering device. The defibrator is configured to defibrate the measured feedstock supplied from the storage device into the defibrated material.

Abstract: A belt (10) for a sleeve roll forms a closed loop and has an inner surface (11), an outer surface (12), an elastic body (15), and a reinforcing structure (30). The reinforcing structure has first yarns (31a) arranged to a first direction (D1) of the belt, and second yarns (32a) arranged to a second direction (D2) of the belt which is parallel or substantially parallel to a travel direction of the belt, and/or perpendicular or substantially perpendicular to the first direction (D1). The belt (10) is configured to stretch elastically more in the second direction (D2) than in the first direction (D1) so that it will return to its original length after forces stretching the belt have been removed. This invention further relates to an arrangement including a belt and a sleeve roll. This invention further relates to a use of a belt.

Abstract: A cleaning apparatus includes a cleaning roller configured to rotate about a first rotation axis to clean a component to which paper dust is attached, the cleaning roller having a first area and a second area that is adjacent to the first area in a direction along the first rotation axis and to which more paper dust is attached than to the first area, and a remover configured to rotate about a second rotation axis extending in a direction different from the first rotation axis and configured to come in contact with at least a portion of the second area to remove the paper dust from the second area.

Abstract: The object of the invention is to provide a shoe press belt which has an excellent strength while the variation in strength among its parts being suppressed, and to provide a method for producing such a shoe press belt. Provided is a shoe press belt for use in a papermaking machine comprising at least one resin layer, wherein the resin layer comprises a polyurethane resin formed by curing an urethane prepolymer having an isocyanate group with a curing agent having an active hydrogen group, wherein the curing agent comprises one or more polycarbonate diol(s) expressed by the following formulae (1) and (2).

Abstract: Device for applying a treatment substance (2.1, 2.2), in particular starch, on at least one side of a running product web (13), in particular a paper or board web, by means of a least one curtain coater (1.1, 1.2) having a discharge nozzle (14.1, 14.2) and at least one press nip (N) following the curtain coater (1.1, 1.2) for forming a hydraulic pressure when the product web (13) passes through a press nip (N) which is formed by one of two rotating press rolls and which causes the treatment substance (2.1, 2.2) to penetrate into the product web (13), wherein the at least one press nip (N) is equipped with at least one heated applicator roll (7, 8) as a press roll to increase the penetration of the treatment substance (2.1, 2.2) into the product web (13), and at least one of the two press rolls (8) is designed with a fixed or adjustable crown (16) for the adjustment of a line load in a range of 20 to 200 kN/m.

Abstract: A paper machine clothing has a plurality of through-channels formed in a usable region. The through-channels extend through the substrate to connect the upper and lower sides. The through-channels are non-cylindrical with a cross-sectional area becoming smaller along a thickness direction of the substrate from the upper side to a middle region of the substrate. An upper rim of at least one of the plurality of through-channels directly contacts an upper rim of at least one other neighboring through-channel of the plurality of through-channels, wherein the upper rims of both neighboring through-channels have at least three common local maxima, including two outer common local maxima and one intermediate common local maximum that is located between the two outer common local maxima. There is also described a method of producing such a paper machine clothing.

Abstract: A system and method is provided for proactive process intervention in manufacturing creped products via a chemical feed stage and a Yankee dryer stage. The method includes generating signals from a plurality of online sensors, corresponding to directly measured variables for respective process components such as, e.g., pH, conductivity, and Yankee blade vibration. Models are developed including retrievable information relating combinations of certain directly measured variables to respective quality characteristics of the creped product. The method further includes indirectly determining quality characteristics (e.g., softness, bulk) for the creped product, substantially in real time, based on, e.g., signals corresponding to directly measured variables, and optionally a predicted natural coating potential.

Abstract: A system comprising: one or more deckle board systems, each of the deckle board systems including: (a) one or more deckle board clamps; (b) a plurality of seal strip clamps; and (c) one or more seal strips; wherein each of the seal strips include one connection slot or less.

Abstract: Products having improved emboss definition, emboss visibility, and perceived softness are described. The tissue products comprise an emboss pattern including multi-apex, high aspect ratio embossing elements that do not suffer from the prior art issues of bunching, puckering and folding. When included in a multi-ply product, the embossed tissue also possesses less adhesive than prior art patterns resulting in a product with improved softness and drape.

Abstract: The invention relates to a method and a device for drying a pulp web, with dewatering of the pulp web by pressing and the pulp web being guided directly on the press belt to a first transfer area for transfer of the pulp web to a transfer clothing and transfer of the pulp web in a second transfer area to a dryer. It is characterized in that the pulp web undergoes thermal drying between the first transfer area and the second transfer area. This enables production of a pulp web with improved quality characteristics and low energy consumption at the same time.

Abstract: An air nozzle apparatus that includes an air orifice and a nozzle housing, said nozzle housing configured as u-shaped having a first elongated sidewall, a second elongated sidewall, and a third curved sidewall formed continuous with said first elongated sidewall and said second elongated sidewall to form a channel having an open end opposite said third curved sidewall, said air orifice positioned centered in said channel and proximate a base of said third sidewall facing said open end, wherein said first elongated sidewall, said second elongated sidewall, and said third curved sidewall are configured having an arched top surface, and, thus, functions to optimize the Coanda effect to position and convey the paper web through an air threading chute to thread a paper web from the end of the drying step through the dry-end to the paper winding step.

Abstract: The object of the invention is to provide a shoe press belt which has an excellent strength while the variation in strength among its parts being suppressed, and to provide a method for producing such a shoe press belt.

Abstract: A fibrous body accumulating device includes an accumulating section including a drum that introduces and releases a material including fibers, a detection section detecting a presence of the material in the drum, and an estimation section estimating an amount of the material in the drum based on a detection frequency at which the detection section detects the material. The fibrous body accumulating device further includes a storage section in which a calibration curve showing a relationship between the detection frequency and the amount of the material in the drum is stored, and the estimation section calculates information on the detection frequency and estimates the amount of the material in the drum with reference to the calibration curve.

Abstract: The present invention relates to papermaking fabrics useful in the manufacture of paper products, such as tissue paper. Particularly this invention relates to a woven papermaking fabric that includes a stabilized weave providing a textured contacting surface. The woven papermaking fabric includes a plurality of warp and shute filaments woven together to provide at least one protuberance on the web contacting side of the fabric that extends longitudinally over at least five shute filaments. The at least one protuberance is stabilized by including an offset shute float weave pattern configured such that a majority of the shute filaments forming the at least one protuberance are woven in an anti-nesting configuration.