Abstract: A papermaking belt may suppress resin fallings from the resin layer during its use. Such a papermaking belt may be used in a papermaking machine and may include at least one resin layer including a resin, wherein the total number of swellings whose height is equal to or higher than 50 ?m and cracks whose length is equal to or longer than 10 mm on at least one surface of the resin layer is equal to or less than 1.0/m2. Such a papermaking belt may be used in a papermaking machine and may include at least one resin layer including a resin. The resin layer may be formed using a resin composition including an aqueous dispersion of a urethane resin. The resin composition may include an organic solvent whose boiling point at 1 atm is equal to or higher than 100° C.

Abstract: A papermaking belt in which changes in surface properties of the resin layer upon use is suppressed, and a method for making the papermaking belt. Provided is a papermaking belt for use in a papermaking machine, including at least one resin layer including a resin, wherein the surface roughness after contacting the surface of the resin layer with a metal plate having a surface roughness equal to or less than 0.10 ?m at a pressure of 100±3 kg/cm2 for 20 hours in warm water bathing at 70±5° C. is equal to or higher than 40% relative to the surface roughness of the surface of the resin layer in a wet state before the contact.

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: 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 shoe press belt for use in a papermaking machine including at least one resin layer, where the resin layer contains a polyurethane resin formed by curing an urethane prepolymer having an isocyanate group with a curing agent having an active hydrogen group, where the urethane prepolymer is obtained by reacting a polyisocyanate compound containing 4,4?-methylene bis(phenylisocyanate) with a polyol compound containing polytetramethylene ether glycol, and the curing agent contains polycarbonate diol(s).

Abstract: Provided are a papermaking device having an excellent strength in which the unevenness in strength between its parts is suppressed, and a method for producing the papermaking device. Also provided is a papermaking device for use in papermaking machine comprising at least one resin layer comprising polyurethane resin, wherein the polyurethane resin is obtainable by reacting a urethane prepolymer having an isocyanate group with a curing agent having an active hydrogen group, wherein the urethane prepolymer is obtainable by reacting a polyisocyanate compound comprising 2,4-tolylene-diisocyanate and/or 2,6-tolylene-diisocyanate with a polyol compound comprising one or more polyether polycarbonate diol(s).

Abstract: Provided are a papermaking device having an excellent strength in which the unevenness in strength between its parts is suppressed, and a method for producing the papermaking device. Also provided is a papermaking device for use in papermaking machine, the papermaking device comprising at least one resin layer comprising a polyurethane resin, wherein the polyurethane resin comprises as a component a polyether polycarbonate diol comprising one or more unit(s) A expressed by the following formula (1).

Abstract: A papermaking belt in which changes in surface properties of the resin layer upon use is suppressed, and a method for making the papermaking belt. Provided is a papermaking belt for use in a papermaking machine, including at least one resin layer including a resin, wherein the surface roughness after contacting the surface of the resin layer with a metal plate having a surface roughness equal to or less than 0.10 ?m at a pressure of 100±3 kg/cm2 for 20 hours in warm water bathing at 70±5° C. is equal to or higher than 40% relative to the surface roughness of the surface of the resin layer in a wet state before the contact.

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: 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: 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 a polyurethane prepolymer with a curing agent, wherein the polyurethane prepolymer is obtained by reacting a polyol comprising one or more polycarbonate diol(s) expressed by the following formulae (1) and (2) with aliphatic polyisocyanate.

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; the urethane prepolymer is obtained by reacting a polyisocyanate compound comprising 4,4?-methylene bis(phenylisocyanate) with a polyol compound comprising polytetramethylene ether glycol; and the curing agent comprises (a) polycarbonate diol(s).

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: 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 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: 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 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: 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.