In a zig-zag folded stack of paper web, particularly a stack of recycling paper web, wherein at least one fold of the zag folded stack of paper web is provided with a perforation-tie-row, wherein the ties of the fold coupled to folding-web-she folded above one another, wherein the fold tie in the perforation, each, comprise a maximal longitudinal direction [respective] in the longitudinal fold direction, it is provided that at least one section of a fold comprises a perforation-fold-row of at least five alternatingly arranged ties and perforations, wherein a ratio of a summed up combined longitudinal extension of the folding ties within the section in relation to a summed up combined longitudinal extension of the perforations of the same number within the folding section is larger than or equal to 0.8, preferably larger than or equal to 1.

A slit-cutting device includes a first holder, a second holder, a first contactable member a second contactable member, and a protrusion member. The first holder includes a medium faceable area and a first contactable member. The second holder holds a blade and includes a second contactable member. A cutting edge of the blade may cut a medium between the first holder and the blade. The first contactable member and the second contactable member contact each other and defined a closest approach distance between the cutting edge and the first holder. The closest approach distance is longer than zero and below a thickness of the medium. The protrusion member protrudes more than the closest approach distance from a part of the medium faceable area. The cutting edge may make a cut line includes at least a part of a slit-cut and a full-cut in a cutting edge direction in the medium.

A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes at least a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and at least a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with at least one protrusion element extending perpendicularly from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.

A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes at least a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and at least a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with at least one protrusion element extending perpendicularly from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.

A machine configured to produce stacks of folded pop-up wipes includes a holder, a first tension unit, a folding unit, and a control unit. The folding unit includes two or more folding rollers each including a hub including grippers to grip and release the material and infeed plates to feed the tissue to respective grippers of the other roller. Positions of the infeed plates are adjustable in relation to positions of the grippers Distances between the grippers and the infeed plates adapt a width of the produced stacks of wipes. The control unit is communicatively coupled to the first tension unit and the folding unit and includes a processor, and a memory. The memory contains instructions executable by the processor. The material is threaded along a path through the machine via the first tension unit and the folding unit. Executing the instructions causes the control unit to control the machine.

A slit-cutting device includes a first holder, a second holder, a first contactable member a second contactable member, and a protrusion member. The first holder includes a medium faceable area and a first contactable member. The second holder holds a blade and includes a second contactable member. A cutting edge of the blade may cut a medium between the first holder and the blade. The first contactable member and the second contactable member contact each other and defined a closest approach distance between the cutting edge and the first holder. The closest approach distance is longer than zero and below a thickness of the medium. The protrusion member protrudes more than the closest approach distance from a part of the medium faceable area. The cutting edge may make a cut line includes at least a part of a slit-cut and a full-cut in a cutting edge direction in the medium.

A paper sheet processing device includes: a charging inlet that takes in paper sheets in a conveyance direction, the paper sheets including at least one target sheet and a partition card overlapped on the target sheet, the partition card having a main surface portion having at least one identification hole group, the identification hole group having at least two through holes arranged along the conveyance direction; a detection unit that detects take-in of the paper sheets by the charging unit, and detects the identification hole group; and a control unit that determines a paper sheet is the partition card in a case where the identification hole group has been detected by the detection unit, and determines that a paper sheet is the target sheet in a case where the identification hole group has not been detected by the detection unit.

The invention relates to the production of books with wire or spiral bindings or other comparable bindings, wherein sub-layers (2) made of punched sheets are collected one over the other in a successive manner into a book (5) at a collecting station (3), and the book is subsequently bound. According to the invention, a sub-layer (2) is held in a clamped manner by at least one lateral clamping device (12) which moves together with the sub-layer while the sub-layer is transported into the collecting position, while the sub-layers (10) already collected at the collecting station (3) are held in a fixed manner by means of at least one needle (13) which is moved upwards through the punched holes (4) from below. The clamping of the pliers is released only when the needles (13) are also located in the punched holes (4) of the newly conveyed sub-layers (2) as a result of the needles being moved upwards.

An information processing apparatus includes a perforation processing setting unit configured to set whether to perform perforation processing of forming a perforation-shaped cut in a physical medium, a line setting unit configured to set whether to print a line at a position corresponding to a position of the perforation-shaped cut on the physical medium, and an instruction unit configured to instruct a printing apparatus to perform the perforation processing and to print the line based on the setting by the perforation processing setting unit and the setting by the line setting unit.