A transfer device applied to a robotic arm for pulp molding, which includes a wet blank transfer mold provided with a closed air chamber therein, a front surface with at least one inward concave matching cavity capable of being sleeved outside a pulp wet blank container and recessed toward the closed air chamber side, a back surface connected with a moving frame, oriented parallel to the wet blank transfer mold, through a guide mechanism, and a driver connected between the back surface of the wet blank transfer mold and the moving frame, where the driver drives the moving frame to move relative to the wet blank transfer mold and the moving frame is provided with a plurality of vacuum suction cups at uniform intervals on a side opposite from the wet pulp transfer mold. The device may transfer a wet blank and collect a molded product at the same time.

A transfer device applied to a robotic arm for pulp molding, which includes a wet blank transfer mold provided with a closed air chamber therein, a front surface with at least one inward concave matching cavity capable of being sleeved outside a pulp wet blank container and recessed toward the closed air chamber side, a back surface connected with a moving frame, oriented parallel to the wet blank transfer mold, through a guide mechanism, and a driver connected between the back surface of the wet blank transfer mold and the moving frame, where the driver drives the moving frame to move relative to the wet blank transfer mold and the moving frame is provided with a plurality of vacuum suction cups at uniform intervals on a side opposite from the wet pulp transfer mold. The device may transfer a wet blank and collect a molded product at the same time.

A pulp molding production line includes a forming machine, a pulp molding manipulator and a press. The pulp molding manipulator having a mounted transfer device which includes a wet blank transfer mold having an interior airtight air chamber. A front face of the wet blank transfer mold is provided with at least one recessed matching cavity that can be sleeved on an outside of a wet pulp blank product that is recessed toward the airtight air chamber, and the recessed matching cavity matches the product. An inner wall and a bottom of the recessed matching cavity are respectively provided with a plurality of small communicating holes. A back face of the wet blank transfer mold is connected to a moving frame through a guide mechanism. A driver connects between the back of the wet blank transfer mold and a moving frame which is provided with uniformly spaced vacuum cups.

A pulp molding production line includes a forming machine, a pulp molding manipulator and a press. The pulp molding manipulator having a mounted transfer device which includes a wet blank transfer mold having an interior airtight air chamber. A front face of the wet blank transfer mold is provided with at least one recessed matching cavity that can be sleeved on an outside of a wet pulp blank product that is recessed toward the airtight air chamber, and the recessed matching cavity matches the product. An inner wall and a bottom of the recessed matching cavity are respectively provided with a plurality of small communicating holes. A back face of the wet blank transfer mold is connected to a moving frame through a guide mechanism. A driver connects between the back of the wet blank transfer mold and a moving frame which is provided with uniformly spaced vacuum cups.

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.

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.

The disclosure provides tissue webs and products comprising cross-linked cellulosic fibers. In certain embodiments cross-linked cellulosic fibers are selectively disposed in one or more layers of a multi-layered tissue, wherein the tissue layer comprising cross-linked fibers is adjacent to a layer which is substantially free from cross-linked fiber. The cross-linked fibers may include hardwood kraft fibers reacted with a cross-linking agent selected from the group consisting of DMDHU, DMDHEU, DMU, DHEU, DMEU, and DMeDHEU. Tissue products and webs produced in this manner generally have improved sheet bulk, without losses in strength, compared to similar tissue products produced without cross-linked cellulosic fibers. As such the tissue products of the present invention generally have a basis weight from about 10 to about 50 gsm, a sheet bulk greater from about 8.0 to about 12.0 cc/g and geometric mean tensile from about 730 to about 1,500 g/3.

The disclosure provides tissue webs and products comprising cross-linked cellulosic fibers. In certain embodiments cross-linked cellulosic fibers are selectively disposed in one or more layers of a multi-layered tissue, wherein the tissue layer comprising cross-linked fibers is adjacent to a layer which is substantially free from cross-linked fiber. The cross-linked fibers may include hardwood kraft fibers reacted with a cross-linking agent selected from the group consisting of DMDHU, DMDHEU, DMU, DHEU, DMEU, and DMeDHEU. Tissue products and webs produced in this manner generally have improved sheet bulk, without losses in strength, compared to similar tissue products produced without cross-linked cellulosic fibers. As such the tissue products of the present invention generally have a basis weight from about 10 to about 50 gsm, a sheet bulk greater from about 8.0 to about 12.0 cc/g and geometric mean tensile from about 730 to about 1,500 g/3.

An apparatus includes: a defibrating unit that defibrates a material to turn it into fibers; a fiber piling-up unit that piles up the fibers to form a second web; a pressing portion that presses the second web to turn it into a sheet; and a humidifying mechanism that supplies humidified air to the fiber piling-up unit. The fiber piling-up unit includes a rotating portion that stirs the fibers supplied from the defibrating unit, a case in which the rotating portion is housed, and a mesh belt that is provided under the case and transports the second web in a transportation direction. The second web is formed on the mesh belt by piling up the fibers on the mesh belt. The humidifying mechanism includes an upstream-side nozzle that is provided upstream of the fiber piling-up unit in the transportation direction and supplies the humidified air to the fiber piling-up unit.

An apparatus includes: a defibrating unit that defibrates a material to turn it into fibers; a fiber piling-up unit that piles up the fibers to form a second web; a pressing portion that presses the second web to turn it into a sheet; and a humidifying mechanism that supplies humidified air to the fiber piling-up unit. The fiber piling-up unit includes a rotating portion that stirs the fibers supplied from the defibrating unit, a case in which the rotating portion is housed, and a mesh belt that is provided under the case and transports the second web in a transportation direction. The second web is formed on the mesh belt by piling up the fibers on the mesh belt. The humidifying mechanism includes an upstream-side nozzle that is provided upstream of the fiber piling-up unit in the transportation direction and supplies the humidified air to the fiber piling-up unit.