Abstract: A shoe press apparatus of a paper machine for pressing wet paper through a nip includes a counter roll, and a shoe module disposed adjacent to the counter roll. The shoe module includes a cylindrical blanket, and a press mechanism disposed inside the cylindrical blanket, extending in a width direction of the cylindrical blanket and individually pressing a plurality of pressed portions formed on the cylindrical blanket along a traveling direction of the wet paper, toward an outer-surface of the counter roll so that the wet paper is pressed in the nip between the cylindrical blanket and the counter roll so that a pressure can be applied efficiently in response to a density required for paper solely by the shoe press apparatus.

Abstract: The present invention relates to a smoothing press for a paper machine and a press for a paper machine with a smoothing press as well as a paper production method. At a final stage of a press section (2) of a paper machine, wet web (1) with one face thereof retained by elastic members (13, 14) is pressed by the nip section of a pair of press rolls (12a, 12b) having a surface formed from a rigid material.

Abstract: An oil recovery apparatus for a roll apparatus by which oil inside a roll mantle can be recovered efficiently even when the roll mantle rotates at a high speed. The roll apparatus includes shoe (5) having a contact portion (7) positioned at an upper portion inside a roll mantle (4), and an oil recovery pan (8) for recovering oil (50) entrained inside the roll mantle (4) upon rotation of the roll mantle (4). The oil recovery pan is disposed below the contact portion (7) on an upstream side in the direction of rotation of the roll mantle (4) with respect to the contact portion (7). Further, an outer edge upper end portion (12) of the oil recovery pan (8) extends to a position proximate to the inner circumferential face of the roll mantle (4) within a range in which the outer edge upper end portion (12) does not interfere with an oil film formed from the oil (50) entrained inside the roll mantle (4).

Abstract: A shoe press apparatus of a paper machine for pressing wet paper through a nip includes a counter roll, and a shoe module disposed adjacent to the counter roll. The shoe module includes a cylindrical blanket, and a press mechanism disposed inside the cylindrical blanket, extending in a width direction of the cylindrical blanket and individually pressing a plurality of pressed portions formed on the cylindrical blanket along a traveling direction of the wet paper, toward an outer-surface of the counter roll so that the wet paper is pressed in the nip between the cylindrical blanket and the counter roll so that a pressure can be applied efficiently in response to a density required for paper solely by the shoe press apparatus.

Abstract: The present invention relates to a smoothing press for a paper machine and a press for a paper machine with a smoothing press as well as a paper production method. At a final stage of a press section (2) of a paper machine, wet web (1) with one face thereof retained by elastic members (13, 14) is pressed by the nip section of a pair of press rolls (12a, 12b) having a surface formed from a rigid material.

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 roll is employed in the press section, calender section, etc., of a papermaking machine. The press roll includes a first tapered surface (11a) and a first clamping surface (12a). The first tapered surface (11a) is formed in the outer peripheral surface of the supporting head (11) and diminishes in outside diameter toward its axially outer end. The first clamping surface (12a) is formed in the inner peripheral surface of the clamping member (12) and coincides with the first tapered surface (11a). With the first tapered surface (11a) and the first clamping surface (12a), a blanket (10) is clamped on the first tapered surface (11a) in a perpendicular direction. In this way, the blanket (10) can be exchanged easily and uniformly in a short time.

Abstract: The invention provides an oil recovery apparatus for a roll apparatus by which oil inside a roll mantle can be recovered efficiently even when the roll mantle rotates at a high speed. A shoe has a contact portion positioned at an upper portion inside a roll mantle, and an oil recovery pan for recovering oil entrained inside the roll mantle upon rotation of the roll mantle is disposed below the contact portion on the upstream side in the direction of rotation of the roll mantle with respect to the contact portion. Further, an outer edge upper end portion of the oil recovery pan extends to a position proximate to the inner circumferential face of the roll mantle within a range within which the outer edge upper end portion does not interfere with an oil film formed from the oil entrained inside the roll mantle.

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 paper machine for stable high-speed papermaking without slackness of wet web, the paper machine including the most downstream press unit along the transfer path of the wet web in the press part, and the most upstream dryer unit and the second upstream dryer unit along the transfer path of the wet web in the dryer part are associated with three different belt mechanisms, respectively, so that the driving units of the three driving units associated with the most downstream press unit and the first and second upstream dryer units are individually controlled so that a transfer speed of the wet web along each of the most downstream press unit and the first and second upstream dryer units is individually set.

Abstract: The present invention relates to a press roll that is employed in the press section, calender section, etc., of a papermaking machine. The press roll includes a first tapered surface (11a) and a first clamping surface (12a). The first tapered surface (11a) is formed in the outer peripheral surface of the supporting head (11) and diminishes in outside diameter toward its axially outer end. The first clamping surface (12a) is formed in the inner peripheral surface of the clamping member (12) and coincides with the first tapered surface (11a). With the first tapered surface (11a) and the first clamping surface (12a), a blanket (10) is clamped on the first tapered surface (11a) in a perpendicular direction. In this way, the blanket (10) can be exchanged easily and uniformly in a short time.