Abstract: A shoe press belt with excellent mechanical properties, in particular excellent wear resistance is provided, and a method of manufacturing the shoe press belt for use in a papermaking machine is also provided. The belt is constituted by a resin layer and includes an outer circumferential layer surface contacting a felt. The outer circumferential layer surface is formed with a surface-treated layer, in which part of the resin layer is modified by coating a composition including an isocyanate compound onto a semi-finished outer circumferential layer and by performing a curing treatment.

Abstract: There is provided a shoe press belt for a papermaking machine, comprising one or more resin layers. At least a part of the resin layers comprises a polyurethane resin comprising polymeric MIDI as an ingredient. The polyurethane resin may be a resin obtainable by reacting one or more curing agent(s) having an active hydrogen group, polymeric MDI and one or more urethane prepolymer(s) having a terminal isocyanate group, the urethane prepolymer(s) being obtainable by reacting one or more isocyanate compound(s) with one or more polyol(s).

Abstract: There is provided a papermaking felt comprising a base fabric layer and at least one batt layer integrated with the base fabric layer, wherein the base fabric comprises at least one layer formed by spirally winding a band-shaped body having a width smaller than a width of the papermaking felt and having a plurality of ground warp yarns, a plurality of ground weft yarns, a first side edge, and a second side edge in such a manner that the first side edge and the second side edge are adjacent and thereby joining the side edges together; and a plurality of marks is arranged at regular intervals in a warp direction of the band-shaped body.

Abstract: There is provided a papermaking felt including: a base fabric layer including at least two layers of a first base fabric layer and a second base fabric layer, each of which is formed by spirally winding a band-shaped body. The first base fabric layer and the second base fabric layer are laminated together such that a direction of spiral winding of the first base fabric layer and a direction of spiral winding of the second base fabric layer are different; A magnitude of a displacement with respect to a cross-machine direction between two intersection points formed by a straight line that passes through intersection points of the side edges of the respective band-shaped bodies of the first base fabric layer and the second base fabric layer and has a minimum angle to the cross-machine direction and both ends of the papermaking felt is 2 cm or more.

Abstract: The object of the present invention is to reduce the wear of the doctor blade applied to the wet paper web transfer belt and the wear of the guide rolls supporting the wet paper web transfer belt while maintaining the wear resistance of the wet paper web contacting surface and the machine contacting surface of the wet paper web transfer belt together with the adhesive and releasing properties of the wet paper web on the wet paper web contacting surface of conventional wet paper web transfer belts. This is achieved by a wet paper web transfer belt in which a polyurethane is integrated with a reinforcing base material comprising a wet paper web-side surface and a machine-side surface, at least the wet paper web-side surface of the reinforcing base material is embedded in the polyurethane, an outer circumferential layer comprising a wet paper web contacting surface is constituted by some of the polyurethane; wherein, at least the outer circumferential layer comprises a spherical filler.

Abstract: There is provided a papermaking felt comprising at least one base fabric and at least one batt layer integrated with the base fabric, The base fabric comprises a first base fabric, a second base fabric, and a third base fabric, the first base fabric, the second base fabric, and the third base fabric are laminated together in an arbitrary order, the first base fabric is a base fabric formed by spirally winding, in a right-handed manner, a band-shaped body having a width smaller than a width of the papermaking felt, the second base fabric is a base fabric formed by spirally winding, in a left-handed manner, a band-shaped body having a width smaller than the width of the papermaking felt, and the third base fabric is a base fabric having at least a plurality of ground warp yarns parallel to an machine direction of the papermaking felt.

Abstract: A shoe press belt with excellent mechanical properties, in particular a shoe press belt with excellent crack resistance and excellent resistance to land edge deficiency. The shoe press belt includes a felt-side resin layer containing a resin formed by curing a prepolymer having a terminal isocyanate group (—NCO) with a curing agent, wherein the prepolymer contains, in reacted form, a compound comprising 1,4-bis(isocyanate methyl) cyclohexane and a polycarbonate diol, and wherein the felt-side resin layer has grooves that are configured to receive water squeezed from a felt.

Abstract: The object of the present invention is to provide a wet paper web transfer belt wherein the adhesive properties and releasing properties of the wet paper web with the wet paper web contacting surface of conventional wet paper web transfer belts have been further improved and paper robbing and floating edges do not occur. This is achieved by a wet paper web transfer belt in which a polyurethane is integrated with a reinforcing base material comprising a wet paper web-side surface and a machine-side surface, at least the wet paper web-side surface of the reinforcing base material is embedded in the polyurethane, an outer circumferential layer comprising a wet paper web contacting surface is constituted by some of the polyurethane; wherein, at least the outer circumferential layer comprises two different types of fillers including a high-roundness filler with a relatively high roundness and a low-roundness filler with a relatively low roundness.

Abstract: The purpose of the present invention is to provide a shoe press belt which exhibits improvement in mechanical characteristics such as crack resistance, wear resistance, delamination resistance and bending fatigue resistance, particularly in the surface wear resistance of the shoe press belt and the crack resistance of the bottom regions of water receiving parts. A shoe press belt which is produced by integrating a reinforcing substrate with a polyurethane layer including at least a felt-side layer and in which water-receiving parts are formed in the felt-side layer, wherein the polyurethane equivalent value of the second resin layer including the bottom regions of the water-receiving parts is adjusted so as to be larger than that of the first resin layer including a surface which is to be brought into contact with a felt.

Abstract: A wet paper web transfer belt for transferring a wet paper web. The belt has a wet paper web carrying surface carrying a wet paper web which is made of a resin layer. The skewness Rsk of the roughness curve of the wet paper web carrying surface is ?0.5 or less.

Abstract: There is provided a shoe press belt for a papermaking machine, comprising one or more resin layers. At least a part of the resin layers comprises a polyurethane resin comprising polymeric MIDI as an ingredient. The polyurethane resin may be a resin obtainable by reacting one or more curing agent(s) having an active hydrogen group, polymeric MDI and one or more urethane prepolymer(s) having a terminal isocyanate group, the urethane prepolymer(s) being obtainable by reacting one or more isocyanate compound(s) with one or more polyol(s).

Abstract: The object is to provide a base fabric for a papermaking felt wherein there is no damage to the MD yarns of the seam loops and a method of producing the same. This is achieved by a base fabric for a papermaking felt wherein seam loops are formed by MD yarns, which is made from MD yarns of the felt running direction (MD) and CD yarns of the felt cross-direction (CD); wherein the seam loops are obtained by removing CD yarns from a part other than the CD yarn no-removal part of a woven fabric comprising a seam loop region having the CD yarn no-removal part, and by moving CD yarns of the CD yarn no-removal part and CD yarns from between the CD yarn no-removal part and the part in which the CD yarns have been removed in the direction of the part in which the CD yarns have been removed, and wherein the strength of the MD yarns of the part in which the CD yarns have been removed is lower than the strength of the MD yarns of the CD yarn no-removal part.

Abstract: There is provided a wet paper web transfer belt for transferring a wet paper web, comprising: a wet paper web carrying side resin layer having a wet paper web carrying surface for carrying the wet paper web; and a roll side resin layer having a roll contacting surface. A water swelling rate of a resin material constituting the wet paper web carrying side resin layer and a water swelling rate of a resin material constituting the roll side resin layer are different, and the water swelling rate of the resin material constituting the wet paper web carrying side resin layer is 2.0% or more and the water swelling rate of the resin material constituting the roll side resin layer is 10.0% or less.

Abstract: The object of the present invention is to provide a wet paper web transfer belt with excellent crack resistance in the regions of the wet paper web transfer belt facing the roll edges. This is achieved by an endless wet paper web transfer belt travelling by rotation while being supported by a plurality of rolls in the press part of a papermaking machine; wherein the wet paper web transfer belt has at least an outer circumferential resin layer on the wet paper supporting side, the outer circumferential resin layer comprises roll edge-facing regions positioned to face both edges in the width direction of at least one of the plurality of rolls and a central region positioned between the roll edge-facing regions, the difference in the thickness between the thickness of the roll edge-facing regions and the thickness of the central region is 0.5 mm or less, and the maximum profile valley depth Rv of the outer circumferential surface of the roll edge-facing regions is 40 ?m or less.

Abstract: There is provided a papermaking felt including: a base fabric layer including at least two layers of a first base fabric layer and a second base fabric layer, each of which is formed by spirally winding a band-shaped body. The first base fabric layer and the second base fabric layer are laminated together such that a direction of spiral winding of the first base fabric layer and a direction of spiral winding of the second base fabric layer are different; A magnitude of a displacement with respect to a cross-machine direction between two intersection points formed by a straight line that passes through intersection points of the side edges of the respective band-shaped bodies of the first base fabric layer and the second base fabric layer and has a minimum angle to the cross-machine direction and both ends of the papermaking felt is 2 cm or more.

Abstract: There is provided a papermaking felt comprising a base fabric layer and at least one batt layer integrated with the base fabric layer, wherein the base fabric comprises at least one layer formed by spirally winding a band-shaped body having a width smaller than a width of the papermaking felt and having a plurality of ground warp yarns, a plurality of ground weft yarns, a first side edge, and a second side edge in such a manner that the first side edge and the second side edge are adjacent and thereby joining the side edges together; and a plurality of marks is arranged at regular intervals in a warp direction of the band-shaped body.

Abstract: The object of the present invention is to provide a shoe press belt with excellent mechanical properties, in particular a shoe press belt with excellent crack resistance and excellent resistance to land edge deficiency. This is achieved by shoe press belt 1 for use in a papermaking machine, wherein it comprises a felt-side resin layer which is constituted by a resin layer and in which grooves for receiving water squeezed from a felt are formed, and wherein the felt-side resin layer is formed by curing a compound comprising 1,4-bis(isocyanate methyl) cyclohexane.

Abstract: There is provided a wet paper web transfer belt for transferring a wet paper web, comprising: a wet paper web carrying side resin layer having a wet paper web carrying surface for carrying the wet paper web; and a roll side resin layer having a roll contacting surface. A water swelling rate of a resin material constituting the wet paper web carrying side resin layer and a water swelling rate of a resin material constituting the roll side resin layer are different, and the water swelling rate of the resin material constituting the wet paper web carrying side resin layer is 2.0% or more and the water swelling rate of the resin material constituting the roll side resin layer is 10.0% or less.

Abstract: The object is to provide a shoe press belt with excellent mechanical properties, in particular excellent wear resistance, and to provide a method of manufacturing said shoe press belt. The shoe press belt 1 is a shoe press belt 1 for use in a papermaking machine, wherein it is constituted by a resin layer 22 and it comprises an outer circumferential layer surface 222 contacting a felt, and wherein the outer circumferential layer surface 222 is formed with a surface-treated layer 24, in which part of the resin layer 22 is modified by coating a composition 25 comprising an isocyanate compound onto a semi-finished outer circumferential layer 221 and by performing a curing treatment.

Abstract: The purpose of the present invention is to provide a shoe press belt which exhibits improvement in mechanical characteristics such as crack resistance, wear resistance, delamination resistance and bending fatigue resistance, particularly in the surface wear resistance of the shoe press belt and the crack resistance of the bottom regions of water receiving parts. A shoe press belt which is produced by integrating a reinforcing substrate with a polyurethane layer including at least a felt-side layer and in which water-receiving parts are formed in the felt-side layer, wherein the polyurethane equivalent value of the second resin layer including the bottom regions of the water-receiving parts is adjusted so as to be larger than that of the first resin layer including a surface which is to be brought into contact with a felt.