Abstract: A press felt 10 comprises a base body 30, a wet paper web side batt layer 20, and a press side batt layer 23. The wet paper web side batt layer 20 has a wet paper web contact side batt layer 21 and a base body side batt layer 22, the wet paper web contact side batt layer 21 being made of a core-in-sheath fiber 41 which has a core member made of high-molecular-weight nylon with an absolute viscosity of 80 mPa·s or more and a sheath member made of nylon with a lower melting point than the core member, and the base body side batt layer 22 being made of a nylon fiber 42 which does not include the core-in-sheath fiber 41. Rewetting of the wet paper web can be prevented, because water within the press side batt layer 23 is blocked from moving to the wet paper web side due to increased density of the wet paper web contact side batt layer 21 resulted from melting of the sheath member of the core-in-sheath fiber 41.

Abstract: A press felt comprises a base body, a wet paper web side batt layer, and a press side batt layer. The wet paper web side batt layer includes a web contact side batt layer and a base body side batt layer, the latter being composed of core-in-sheath fibers with a core of high molecular weight nylon with an absolute viscosity of 80 mPa·s or more and a sheath of nylon with a lower melting point than the core. The wet paper web contact side batt layer is made of nylon fibers which are not core-in-sheath fibers.

Abstract: A press felt for use in a papermaking machine comprises a base body, a batt material and a hydrophilic nonwoven fabric, all intertwiningly integrated by needle punching. The batt material comprises a staple fiber, and is composed of a wet paper web side layer and a press side layer. The hydrophilic nonwoven fabric is provided in the wet paper web side layer. The hydrophilic character of the nonwoven fabric improves the movement of water to the nonwoven fabric, and the holding the water in the nonwoven fabric. As a result rewetting is prevented more effectively than in the case of prior press felts.

Abstract: A press felt for use in a papermaking machine comprises a base body, a batt material and a hydrophilic nonwoven fabric, all intertwiningly integrated by needle punching. The batt material comprises a staple fiber, and is composed of a wet paper web side layer and a press side layer. The hydrophilic nonwoven fabric is provided in the wet paper web side layer. The hydrophilic character of the nonwoven fabric improves the movement of water to the nonwoven fabric, and the holding the water in the nonwoven fabric. As a result rewetting is prevented more effectively than in the case of prior press felts.

Abstract: A wet web transfer belt for a closed draw papermaking machine is provided with a rough surface to allow easy release of a wet web. The rough surface is obtained easily, and with reliable quality, by forming the web-contacting side of a batt layer from a welded layer of meltable fiber. A filler is included in the surface portion of the welded layer, extending from the surface at least part way into the welded layer, thereby facilitating the production of projections and concavities which provide the rough surface, and resulting in a wet web transfer belt of stable quality.

Abstract: A wet web transfer belt for a closed draw papermaking machine is provided with a rough surface to allow easy release of a wet web. The rough surface is obtained easily, and with reliable quality, by forming the web-contacting side of a batt layer from a welded layer of meltable fiber.