An apparatus and method for optional cross-folding of successively following, sequentially printed sheets on a first transport segment. A compressed air device comprises a first control element that is connected to a control unit for triggering or suppressing a compressed air blast from at least one exit opening in the compressed air device. A printed sheet is diverted into a second transport segment for the folding operation or a third transport segment for bypassing the folding operation. The latter empties downstream of folding rolls into the second transport segment at a joint segment point, at which a fourth transport segment adjoins in downstream direction. The third transport segment is longer than the second transport segment or can be operated at a lower speed than the second transport segment such that a first sequence of printed sheets successively following on the first transport segment is identical to a second sequence of the successively following printed sheets located on the fourth transport segment.

The invention pertains to a device for producing collections of sheet-like printed products from a supplied material strand, in which a switch feeds the product stream to a receiving cylinder via one of at least two collecting cylinders, as well as to a folding apparatus with such a collecting device.

The present application provides a napkin dispenser for dispensing a number of folded napkins from a sheet material to an end user. The napkin dispenser may include a loading station for loading the sheet material, a folding station for folding a napkin from the sheet material, and a presentation station for presenting one or more of the folded napkins to the end user.

An interfolding machine produces interfolded sheets according to an interfolding configuration and, starting from a web of paper provides a feeding section, which applies a tension on the web and moves the same along a feeding direction feeding the same to a cutting section, in which the web of paper is cut into a series of sheets at a cutting point between a cutting roller and a counter-cutting element. Downstream of the cutting section, a folding section includes a first and a second folding rollers counter-rotating with respect to each other. The first and second folding rollers rotate about respective rotation axes with a first peripheral velocity vP, and fold, at a folding zone, a plurality of sheets in a plurality of panels and form the stack of interfolded sheets. The cutting roller alternately distributes the aforementioned sheets between a transfer roller and the first folding roller.

An interfolding machine produces interfolded sheets according to an interfolding configuration and, starting from a web of paper provides a feeding section, which applies a tension on the web and moves the same along a feeding direction feeding the same to a cutting section, in which the web of paper is cut into a series of sheets at a cutting point between a cutting roller and a counter-cutting element. Downstream of the cutting section, a folding section includes a first and a second folding rollers counter-rotating with respect to each other. The first and second folding rollers rotate about respective rotation axes with a first peripheral velocity vP, and fold, at a folding zone, a plurality of sheets in a plurality of panels and form the stack of interfolded sheets. The cutting roller alternately distributes the aforementioned sheets between a transfer roller and the first folding roller.

The invention concerns a process and a system for the digital printing of printed publications, for the flexible production, on demand, of a single publication or small series of publications. The process of the invention is an automated process for the manufacture of at least one publication printed from at least one sheet, comprising the steps wherein: a plurality of pages (1, 4, 5, 8) of the publication is printed (A) on the sheet (10) that is moved through a series of stations wherein, subsequently, the sheet (10) is folded (C) in half perpendicular to the direction of travel; the folded sheet (10) is pivoted (D) by 90 with respect to the direction of travel, and the edges (18, 19) of the folded sheet are trimmed to obtain separate, superposed leaves (16, 17).

The invention relates to a device and method for manipulating a first paper strip (12) and at least one second paper strip (16) and a machine for producing booklets of paper sheets. The device comprises a conveying unit (64) providing a first conveying direction (14) for the first paper strip (12) and at least one second conveying direction (18) for the at least one second paper strip (14), wherein the at least one second conveying direction (18) is directed non-parallel to the first conveying direction (14), a meeting unit (58) at which the first paper strip (12) and the at least one second paper strip (16) meet to form a single strand of paper.

The invention relates to a device and method for manipulating a first paper strip (12) and at least one second paper strip (16) and a machine for producing booklets of paper sheets. The device comprises a conveying unit (64) providing a first conveying direction (14) for the first paper strip (12) and at least one second conveying direction (18) for the at least one second paper strip (14), wherein the at least one second conveying direction (18) is directed non-parallel to the first conveying direction (14), a meeting unit (58) at which the first paper strip (12) and the at least one second paper strip (16) meet to form a single strand of paper.

Embodiments of the present invention provide new and improved folding apparatuses and methods for interfolding a continuous stream of sheets into a single-fold interfolded pattern of sheets while passing all of the sheets substantially along a single sheet path. More particularly, all sheets in the continuous stream of sheets pass through the nips between adjacent components.

To provide a marking device that enables to easily find a tag determined as defective (RFID error, etc.) among a plurality of tags that are stacked or the like. The marking device to use with a sheet includes cut and raising part for forming, as a failure process, a cut and raised section to be positioned at an edge of the sheet having been found the defect.