The present disclosure relates to adjusting and maintaining a position of a cutting surface used to create lines of weakness for rolled products. A perforating apparatus includes a housing rotatably supported by a frame, wherein the housing is adapted to rotate about a first axis. A support member including a first cutting surface is rotatably supported by the housing, wherein the support member is adapted to rotate about a second axis offset from the first axis. A roll including a second cutting surface is positioned adjacent the support member, wherein the roll is adapted to rotate about a third axis. The second cutting surface is adapted to contact the first cutting surface as the roll rotates about the third axis. The perforating apparatus is configured such that the functions of adjusting the position of the first cutting surface and holding the first cutting surface in a fixed position are separate.

The present disclosure relates to adjusting and maintaining a position of a cutting surface used to create lines of weakness for rolled products. A perforating apparatus includes a housing rotatably supported by a frame, wherein the housing is adapted to rotate about a first axis. A support member including a first cutting surface is rotatably supported by the housing, wherein the support member is adapted to rotate about a second axis offset from the first axis. A roll including a second cutting surface is positioned adjacent the support member, wherein the roll is adapted to rotate about a third axis. The second cutting surface is adapted to contact the first cutting surface as the roll rotates about the third axis. The perforating apparatus is configured such that the functions of adjusting the position of the first cutting surface and holding the first cutting surface in a fixed position are separate.

The present disclosure relates to a cutting system for providing holes in a core material layer. The cutting system has a cutting tool having a cutting knife configured to cut through the core material layer, and an anvil having a rigid support surface for receiving the cutting knife of the cutting tool. The cutting system further has an elastic member that is positioned to absorb at least a part of a force applied when the cutting tool is pressed against said anvil.

A sheet material processing device 3 for performing processing on a having-been-conveyed sheet material along a direction perpendicular to the conveyance direction of the sheet material, includes: a blade member 4 including an upper blade part 42 and a lower blade part 41 that extend in the perpendicular direction and then pressing both blade parts 41 and 42 to each other so as to perform predetermined processing on the sheet material located between both blade parts; a pressing mechanism 5 for pressing both blade parts to each other; and a moving mechanism 6 for moving the blade member in the perpendicular direction, wherein in the upper blade part 42, a processing blade 421 is formed at one or more sites in the perpendicular direction, and wherein in the lower blade part 41, a receiving part for the processing blade is formed over the section facing the processing blade 421.

A method for making an extrusion coated perforated nonwoven web. The method comprises the steps of extruding a molten polyethylene coating onto a nonwoven web, and aperturing the molten polyethylene coating through heat and pneumatic pressure differential to create microperforations therein at a density of between about 35 and about 120 perforations per linear inch. The resulting microperforated nonwoven web is then thermomechanically perforated by feeding it through perforating rolls, at least one of which has raised protuberances to create macroperforations that extend through at least the polyethylene coating. The macroperforations have a density of between about 6 and about 35 perforations per linear inch. The perforated nonwoven web is useful as a topsheet for absorbent articles.

A method for making an extrusion coated perforated nonwoven web. The method comprises the steps of extruding a molten polyethylene coating onto a nonwoven web, and aperturing the molten polyethylene coating through heat and pneumatic pressure differential to create microperforations therein at a density of between about 35 and about 120 perforations per linear inch. The resulting microperforated nonwoven web is then thermomechanically perforated by feeding it through perforating rolls, at least one of which has raised protuberances to create macroperforations that extend through at least the polyethylene coating. The macroperforations have a density of between about 6 and about 35 perforations per linear inch. The perforated nonwoven web is useful as a topsheet for absorbent articles.

Perforation tool for a device for the manufacturing by machine of a dunnage material which is to be formed of a single layer or multi-layer paper web whereby the perforation tool is configured for introducing a perforation into the dunnage material and comprises: at least one perforation nose, at least one perforation reception wherein the at least one perforation nose and the at least one perforation reception are associated with each other such that, for perforating, the at least one perforation nose can retract and extend with respect to the at least one perforation reception, and at least one stripper which is associated with the at least one perforation nose and/or the at least one perforation reception such that, when disengaging, perforated dunnage material is removed from the at least one perforation nose and/or from the at least one perforation reception.

Perforation tool for a device for the manufacturing by machine of a dunnage material which is to be formed of a single layer or multi-layer paper web whereby the perforation tool is configured for introducing a perforation into the dunnage material and comprises: at least one perforation nose, at least one perforation reception wherein the at least one perforation nose and the at least one perforation reception are associated with each other such that, for perforating, the at least one perforation nose can retract and extend with respect to the at least one perforation reception, and at least one stripper which is associated with the at least one perforation nose and/or the at least one perforation reception such that, when disengaging, perforated dunnage material is removed from the at least one perforation nose and/or from the at least one perforation reception.

A perforating apparatus includes a longitudinal cylinder axis about which a cylinder rotates. At least one shaped anvil is disposed on the cylinder. Further, a support operatively engages with the cylinder, and the support is moveable with respect to the cylinder. A blade is disposed on the support so as to cooperate in contacting relationship with the anvil, and the blade is substantially parallel to the longitudinal cylinder axis. At least one of the blade and the anvil comprises a plurality of teeth, and adjacent teeth are separated by a recessed portion. A web is perforated as the web passes between the rotating cylinder and the support and the blade cooperates with the anvil.

A perforating apparatus includes a longitudinal cylinder axis about which a cylinder rotates. At least one shaped anvil is disposed on the cylinder. Further, a support operatively engages with the cylinder, and the support is moveable with respect to the cylinder. A blade is disposed on the support so as to cooperate in contacting relationship with the anvil, and the blade is substantially parallel to the longitudinal cylinder axis. At least one of the blade and the anvil comprises a plurality of teeth, and adjacent teeth are separated by a recessed portion. A web is perforated as the web passes between the rotating cylinder and the support and the blade cooperates with the anvil.