Abstract: A wet paper web transfer belt comprises a base body 30, a paper side layer 20, and a machine side layer 23. The paper side layer 20 is composed of a paper contacting side batt layer 21 made of hydrophilic fibers 41 and a base bode side batt layer 22 without the hydrophilic fibers 41, at least the paper contacting side batt layer 21 being impregnated with a high molecular weight elastic body 50 and at least a part of the hydrophilic fibers 41 being exposed on the surface of the paper contacting side batt layer 21. The water contained in the wet paper web remains within the paper contacting side batt layer 21 made of the hydrophilic fibers 41 with only a small amount of water moving into the base body side batt layer 22, thereby reducing dimensional changes of the belt.

Abstract: A belt press for a paper machine, the belt press including a roll having an exterior surface and a permeable belt. The permeable belt has a first side and is guided over a portion of the exterior surface of the roll. The permeable belt has a tension of at least approximately 30 KN/m, the first side has an open area of at least approximately 25% and a contact area of at least approximately 10%.

Abstract: A shoe press belt for a paper machine includes a substrate and a polyurethane resin impregnated to laminate on the surfaces of both the shoe side and the felt side thereof, and is excellent in abrasion resistance, crack resistance and processability. A polyurethane resin is produced by using a combination of two kinds of diisocyanates, that is, tolylene diisocyanate (TDI) and diphenylmethane diisocyanate (MDI) as starting materials.

Abstract: A belt (shoe press belt) for a paper making machine, which has good ability of squeezing water from moist paper and which, during use, has reduced damage (cracks and wear) on the outer peripheral surface of the belt. The shoe press belt for making paper carries felt for receiving water squeezed from moist paper. A water discharge groove extended on the surface on the felt side is formed as an intermittent groove, and the width and depth of the water discharge groove are continuously varied in the direction of travel (MD direction) of the groove. The shape of the intermittent groove can be asymmetrical or symmetrical at the left and right with respect to the width, or can be formed to have a narrow width at the center of the groove, or can be formed so that the groove is deep at the center. Because the water discharge groove is intermittent, water discharge ability, the quality of paper, and the smoothness of the surface of moist paper are enhanced at the same time.

Abstract: Disclosed is a shoe press belt (10) which comprises a reinforcing fibrous base material (6) embedded in a polyurethane layer, and has an outer circumference layer (2a) and an inner circumference layer (2b) each formed with a polyurethane. The polyurethane layer constituting the outer circumference layer (2a) comprises a polyurethane which is cured by the reaction of an urethane prepolymer (A) with a curing agent mixture (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound selected from p-phenylene-diisocyanate and 4,4?-methylenebis(phenylisocyanate) with a polytetramethylene glycol and has an isocyanate group at its terminal. The curing agent mixture (B) comprises 1,4-butanediol and an aromatic polyamine having an active hydrogen group (H). The shoe press belt has excellent wear resistance, cracking resistance and bending fatigue resistance.

Abstract: A fabric having one or more guides attached to a wear surface of the fabric so to encapsulate fifty percent or more of the fabric caliper. Advantageously, the encapsulation of the fabric by the guide, and not the chemical affinity of the materials, is the mechanism that attaches the guide and fabric. Consequently, the bond strength is equal to the tear strength of either the fabric or guide material alone.

Abstract: An apparatus for producing a fibrous web, in particular a tissue web, with a press zone through which the fibrous web is passed in a lying position between a circulating permeable structured belt and a circulating permeable non-structured supporting belt. A press nip is provided on a Yankee Cylinder through which the fibrous web is passed in the lying position together with the structured belt between the structured belt and the Yankee cylinder, whereby the press zone is limited on the side adjacent the supporting belt by a substantially smooth surface, and whereby the supporting belt is not brought together with the fibrous web and the structured belt until proximate to the press zone.

Abstract: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt can be tensioned to at least 30 KN/m. A side of the permeable belt has an open area of at least approximately 25% and a contact area of at least approximately 25%. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A papermaking machine for making paper includes a forming section, a press section, and a drying section. The paper web is pressed between two press members while enclosed between a press felt and a transfer belt having non-uniformly distributed microscopic depressions in its surface, the web following the transfer belt from the press to a transfer point at which the web is transferred via a suction transfer device onto a structuring fabric, the web then being dried on a drying cylinder. The transfer point is spaced a distance D from the press nip selected based on machine speed, a basis weight of the web, and the surface characteristics of the transfer belt, such that within the distance D a thin water film between the web and the transfer belt at least partially dissipates to allow the web to be separated from the transfer belt.

Abstract: An industrial belt having a non-linear seam adapted to be on-machine joinable. In a particular embodiment, the seam is made up of a opposite end regions of the belt having complementary projections, such as in the form of castellations, which engage at the seam, providing a completely integrated belt throughout the zone of the seam. In the field of papermaking, the belt of the invention can take the form of a transfer belt, whereby the invention provides a fully interlocking, strong seam which minimizes any potential mechanical or hydraulic sheet marking. The invention also includes a method of creating the end regions of the belt, seaming the belt, and casting the belt.

Abstract: A transport belt for a machine for producing a fiber material web, in particular paper or paperboard, has, on a web material side, a web material contact surface and, on a machine side, a machine contact surface, wherein a multiplicity of depressions are provided in the transport belt on the machine side.

Abstract: A transport belt, in particular for machines for the production of web material such as paper or paperboard, having a printed material at least in some regions on a web material contact side.

Abstract: Disclosed is a shoe press belt (10) which comprises a reinforcing fibrous base material (6) embedded in a polyurethane layer, and has an outer circumference layer (2a) and an inner circumference layer (2b) each formed with a polyurethane. The polyurethane layer constituting the outer circumference layer (2a) comprises a polyurethane which is cured by the reaction of an urethane prepolymer (A) with a curing agent mixture (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound selected from p-phenylene-diisocyanate and 4,4?-methylenebis(phenylisocyanate) with a polytetramethylene glycol and has an isocyanate group at its terminal. The curing agent mixture (B) comprises 1,4-butanediol and an aromatic polyamine having an active hydrogen group (H). The shoe press belt has excellent wear resistance, cracking resistance and bending fatigue resistance.

Abstract: The present invention relates to a urethane-based coating having nanoparticles for improving the characteristics of a papermaking process belt, roll cover and belts used in textile applications. For example, the present invention improves resistance to flex fatigue, crack propagation, groove closure and wear characteristics of urethane coatings on such belts and roll coverings. The present invention also improves the resistance to water and oil permeation characteristics of urethane coated belts and roll coverings.

Abstract: This invention relates to a machine for the production of a paper web, paperboard web or tissue web, having a roller with a circumferential surface and having an endless belt, in particular a transfer belt, which is wrapped around the circumferential surface of the roller in sections and has a bottom side which in the wrap zone can be brought into contact with the circumferential surface, as the result of which the endless belt and/or the roller provide a storage capacity suitable for accommodating at least in part the fluid which gets into the wrap zone between the bottom side and the circumferential surface.

Abstract: A press belt (2) comprises both-end corresponding regions B positioned so as to correspond to both ends of a press roll (1) or a press shoe (3) in a width direction and having a small thickness and a center region A positioned between the both-end corresponding regions B and having a thickness larger than that of the both-end corresponding region B.

Abstract: A processing device and method applying the same for processing a coated or uncoated fibrous web is provided. The device comprises a belt configured to extend around a guiding element, at least one counter-element being disposed outside said belt to provide a contact area with the belt, such that the belt and the counter-element establish therebetween a web processing zone for passing a web to be processed therethrough. The processing zone length is defined by the disposition of the belt's guiding element and/or by the configuration of the counter-elements. The contact pressure applied to a web in the processing zone is within the range of between about 0.01 MPa and about 200 MPa.

Abstract: This invention relates to a belt for transferring an in-production fibrous web, in particular a paper web or paperboard web, in a machine area of a machine producing the fibrous web, in particular a paper machine or paperboard machine, including at least one textile substrate and a coating, which is applied to the substrate and touches the in-production fibrous web, for obtaining a partial or complete impermeability of the belt. The inventive belt has at least one continuously differencing characteristic in at least one region across its overall width. Also, this invention relates to a machine, in particular a paper machine or paperboard machine, for producing a fibrous web, in particular a paper web or paperboard web, as well as to a use of a belt for transferring an in-production fibrous web, in particular a paper web or paperboard web, in one machine area or between two machine areas of a machine producing the fibrous web, in particular a paper machine or paperboard machine.

Abstract: A belt (10) for shoe press comprising a shoe side layer (20), a substrate (30) formed on the our circumference of the shoe side layer (20), and a wet paper side layer (60) formed on the outer circumference of the substrate (30). The substrate (30) consists of a lattice-like material (40) formed by bonding the intersection of a warp (40A) and a weft (40B), and a thread winding layer (50) formed by winding a thread (50A) spirally. Bonding at the intersection of the warp (40A) and the weft (40B) is separated easily and friction takes place between them, but since the warp (40A) is made to wear earlier than the weft (40B), the weft (40B) does not wear in the early stage as compared with prior art. Consequently, strength and dimensional stability of the belt for shoe press are enhanced.

Abstract: A paper machine belt that includes at least one layer having parallel yarns. Additionally, a ratio of a volume of the parallel yarns in the at least one layer to a void volume in the at least layer is greater than 1:1.

Abstract: A press belt 20 includes a multiplicity of drain grooves 21 extending along a belt travel direction, lands 22 located between adjacent drain grooves 21, and auxiliary grooves 23 located on the lands 22 and extending along the belt travel direction. A transverse sectional area of each auxiliary groove 23 is smaller than that of each drain groove 21.

Abstract: A dewatering and thickening belt having an endless fabric woven with synthetic resin filaments, a bending-resistant element and a guide protrusion, wherein the guide protrusion is fusion-bonded to a bending-resistant portion to which the bending-resistant element has been attached so that the outer end portion of the guide protrusion is located inside the end portion of the fabric. The inner end portion of the guide protrusion is located 20 to 50 mm outside the inner end portion of the bending-resistant element.

Abstract: A dryer fabric for a condensation drying apparatus in a machine which produces and/or processes a web material, such as paper, cardboard or tissue, includes a base structure which essentially provides the dimensional stability of the fabric and which consists of polyester and/or PCTA and/or PCT and/or PEEK and/or PPS and/or thread material which includes PA with high temperature stability; a fibrous nonwoven layer located on the basic structure, which essentially provides the water absorption capacity of the fabric and which provides the dryer fabric with a web material contact side on its outside, facing away from the basic structure, whereby the fibrous nonwovens layer comprises a first polymer material located at least in the area of the outside and whereby the fibrous nonwovens layer is compressed and smoothed in the area of the outside which provides the web material contact side through means of hot-calendering above the melting temperature of the first polymer material.

Abstract: A press belt having superior cracking resistance, wear resistance and pressure deflection resistance and an excellent traveling property and a method of manufacturing the same as well as a shoe press employing the same are provided. A press belt in a press comprising a rotatively traveling endless press belt and pressing means, including terminal corresponding areas (B, B?) corresponding to both ends of the pressing means in the cross direction and a central area (A) located between the terminal corresponding areas and mainly composed of thermosetting polyurethane obtained from a thermosetting polyurethane material containing a phenylene isocyanate derivative having an isocyanate group (NCO) on an end and a hardener having an active hydrogen group (H) on an end with the equivalent ratio (H/NCO) between the active hydrogen group and the isocyanate group set relatively high on the terminal corresponding areas and relatively low on the central area and a method of manufacturing the same.

Abstract: The present invention relates to a shoe press belt for a paper machine, comprising a substrate and a polyurethane resin impregnated to laminate on the surfaces of both the shoe side and the felt side thereof, which is excellent in abrasion resistance, crack resistance and processability. In the present invention, a polyurethane resin is produced by using a combination of two kinds of diisocyanates, that is, tolylene diisocyanate (TDI) and diphenylmethane diisocyanate (MDI) as starting materials.

Abstract: A belt (4) for a shoe press is disposed for rotational movement between a press roll (2) and a shoe (3). The belt (4) includes a shoe-side layer (21), a base layer (22) disposed on an outer circumferential surface of the shoe-side layer (21), and a wet paper web-side layer (25) disposed on an outer circumferential surface of the base layer (22). The base layer (22) has a pair of reinforcing bases (11). The reinforcing layers (11) are disposed circumferentially in a warpwise direction in given regions (E1) corresponding respectively to shoe edges (10) on the opposite sides in a widthwise direction of the shoe (3). The rigidity of belt portions of shoe edge abutment regions (E1) on opposite sides in the widthwise direction of the shoe (3) is partially increased to increase bending stresses and crack resistance of the belt.

Abstract: A fabric for use by a papermaking machine, the fabric including a plurality of weft yarns, a plurality of warp yarns, and a woven fabric resulting from a repeating pattern of the weft yarns and warp yarns. Each of the weft yarn in the repeating pattern having a sequence of starting at a starting point then sequentially going over three adjacent warp yarns, under one warp yarn, over one warp yarn, under three warp yarns, over one warp yarn and under one warp yarn, the sequence then repeating.

Abstract: Belt and method of making a belt for a paper making machine. The belt includes a flat woven material having a top side surface and a bottom side surface and two terminal ends separated in a machine direction. Folds formed in the flat woven material are separated in the machine direction, so that the two terminal ends are located under the bottom side surface. Seam loops are located at the folds, and the two terminal ends one of are arranged adjacent each other and overlap each other in a region offset from a center between the folds. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: The invention relates to a press fabric, especially a press felt, for a machine for the production of a fibrous web, especially paper or cardboard, which is fluid permeable and which includes an elastomer polymeric material. The invention is characterized in that the total weight component of the elastomer polymeric material contained in the press fabric is more than 50%, preferably more than 60% of the total weight of the press fabric.

Abstract: A press belt (2) comprises many drain grooves (13) extending along a belt travel direction, and many lands (14) positioned between the adjacent drain grooves and extending along the belt travel direction. The land (14) has an upper surface which is entirely curved upward as a transverse sectional configuration along a belt width direction.

Abstract: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt has a paper web facing side and is guided over a support surface. The permeable belt can have a tension of between approximately 20 kN/m and approximately 100 KN/m, a permeability value of between approximately 100 cfm and approximately 1200 cfm, a surface contact area of the paper web side that being between approximately 0.5% and approximately 90% when not under tension, and an open area of between approximately 1.0% and approximately 85%. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A forming fabric for an ATMOS system or a TAD machine. The forming fabric includes a permeability value of between approximately 100 cfm and approximately 1200 cfm, a paper surface contact area of between approximately 0.5% and approximately 90% when not under pressure and tension, and an open area of between approximately 1.0% and approximately 90%. A belt press for a paper machine can utilize the forming fabric. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is utilized for applying pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A paper making elastic belt has a drainage channels in a surface. A surface roughness of a wall of the drainage channel is not more than 2.0 ?m in arithmetic average roughness (Ra).

Abstract: A belt for a shoe-press of a paper machine having water drain grooves which are resistant to the occurrence of cracks in side walls of the water drain grooves. The surface condition of the water drain grooves side wall is arranged to be a pear-skin state having minute unevenness. Preferably the surface has an average surface roughness in a range of 10 to 50 micrometers in at least the upper two thirds of the total distance (depth) of the side walls of the water drain grooves between the top of the groove and the bottom thereof. The water drain grooves can be manufactured by rotary cutting blades disposed in a position in contact with a roll around which a belt is wound. The roll and the rotary cutting blades rotate simultaneously and a groove cutting device is shifted in the width direction of the belt so that water drain grooves are formed in the belt.

Abstract: The condition of a shoe roll is monitored by a device which continuously analyzes the lubricant used in a lubrication system (14) integrated with the shoe roll. The analysis determines the amount of contaminant particles which have entered the lubricant. Particles (19) originating from the belt (13) of a belt roll belonging to the shoe roll (10) are determined in the lubricant. The condition of the belt (13) of a belt roll belonging to the shoe roll (10), and especially the condition of the inner side of the belt (13), can be determined on the basis of the amount of the particles (19).

Abstract: The present invention provides a belt for a papermaking machine having excellent property such as crack resistance, abrasion resistance and hair crack resistance.

Abstract: A belt for use in a long nip press having an arcuate pressure shoe. The belt has at least one layer having a polymer resin coating on at least one surface thereof. The resin coating has a plurality of grooves arranged therein and wherein a number of the grooves has a length less than a length of the arcuate pressure shoe to reduce ingoing nip spray.

Abstract: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt can be tensioned to at least 30 KN/m. A side of the permeable belt has an open area of at least approximately 25% and a contact area of at least approximately 25%. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A transport belt, in particular for machines for the production of web material such as paper or paperboard, which on a web material contact side (18) includes at least two material layers (20, 22, 24) of different material arranged one above the other, wherein prior to starting up for the first time the transport belt (10) is subjected on its web material contact side (18), at least in some regions, to a material-removing process such that the transport belt (10) has on its web material contact side (18) a web material contact surface (26) provided by various material layers (20, 22, 24).

Abstract: The present invention relates to a urethane-based coating having nanoparticles for improving the characteristics of a papermaking process belt, roll cover and belts used in textile applications. For example, the present invention improves resistance to flex fatigue, crack propagation, groove closure and wear characteristics of urethane coatings on such belts and roll coverings. The present invention also improves the resistance to water and oil permeation characteristics of urethane coated belts and roll coverings.

Abstract: A belt for use in a long nip press having an arcuate pressure shoe. The belt has at least one layer having a polymer resin coating on at least one surface thereof. The resin coating has a plurality of grooves arranged therein and wherein a number of the grooves has a length less than a length of the arcuate pressure shoe to reduce ingoing nip spray.

Abstract: A belt for use in a papermaking process, such as in a long nip press having a cylindrical press roller and an arcuate pressure shoe which define a nip. The belt has a nip load zone which passes through the nip during an operation. The belt comprises a substrate having a coating on at least one surface thereof. The substrate is in the form of an endless loop and has a longitudinal direction. The coating has a plurality of grooves running in a center portion of the nip load zone, in which the number of grooves have at least one of a depth, width, cross-sectional shape, or spacing which is different from that of the others so as to vary the void volume in a desired manner.

Abstract: A press belt with occurrence of pinholes remarkably reduced as well as a manufacturing method of the press belt are provided. The press belt includes a reinforcing base material containing multifilaments that are impregnated with a bundling agent and an elastic material in which the reinforcing base material is buried. The manufacturing method is a method of manufacturing the aforementioned press belt. The reinforcing base material is preferably made of a woven fabric and the bundling agent preferably contains as its main component thermosetting resin. As the bundling agent, a bundling agent containing as its main component urethane-based resin is suitably used. For the reinforcing base material, organic fibers are preferably used. The bundling agent is preferably applied in the form of emulsion to the multifilaments or the reinforcing base material.

Abstract: A papermaking belt, used for a shoe pressing belt, a calender belt and a sheet transfer belt, is prevented from cracking and inhibited from growth of a crack, and comprises a reinforcing substrate (6) embedded in a thermosetting polyurethane layer (7) so that the said reinforcing substrate (6) and the said thermosetting polyurethane layer (7) are integrated with each other and the outer peripheral surface and the inner peripheral surface of the belt are formed by polyurethane layers, the polyurethane layer forming the outer peripheral surface is made of a composition containing a urethane prepolymer having isocyanate groups on ends and a hardener containing dimethylthiotoluenediamine.

Abstract: The present invention is a grooved belt, or surface roll where applicable, and a method for making these belts or rolls, comprising placing a chemically reactive material on a partially completed belt surface, and depositing an elastomeric material onto the chemically reactive material which reacts and forms a bond therewith to create a pattern. Placement of the elastomeric material is used to create the grooves, for example. The grooves are formed without machining and the resulting belt surface is smooth and uniform without cuts or cracks.

Abstract: In a shoe press belt (11; 21; 31; 41; 51; 61) endlessly formed by an elastic material, a plurality of drains (15; 25; 35; 45; 55; 65) are formed on the outer peripheral surface of the shoe press belt along the peripheral direction of the shoe press belt, and the depths of these drains are progressively increased from a central pressurizing portion (C1; C2; C3; C4; C5) toward end pressurizing portions (A1, A1?; A2, A2?; A3, A3?; A4, A4?; A5, A5?) of the shoe press belt. A shoe press employing this shoe press belt. Thus, a shoe press belt capable of uniformly dehydrating the overall wet web and a shoe press employing the same can be provided.

Abstract: A laminated substrate or base structure comprising separately formed layers with warp knitted or stitch bonded yarns joining the layers together wherein at least one of the layers is a reinforcing layer and at least one of the layers is for inhibiting resin flow through the substrate. A method for forming the substrate or base structure into a coated papermaker's process belt product is also described.

Abstract: The present invention is a method for maximizing water removal from an absorbent web in a press nip. The present invention uses a pressing unit having a blanket with a void volume and with a pressure profile that maximizes water removal in the press section or on the Yankee dryer of a paper machine. The pressure profile of the pressing unit according to the present invention has a very steep pressure drop at and/or following the exit of a pressure distribution curve in order to maximize water removal by minimizing rewet of the web. The improved pressure profile according to the present invention results in increased water removal and/or improved line speed. The void volume further increases water removal and/or improves line speed.

Abstract: A belt press including a roll having an exterior surface and a permeable belt having a side in pressing contact over a portion of the exterior surface of the roll. The permeable belt having a tension of at least 30 KN/m applied thereto. The side of the permeable belt having an open area of at least approximately 25%, and a contact area of at least approximately 25%.