The invention relates to a separating device (10) for separating a tubular flat material (1) having an actual tube width (1.1), comprising at least one longitudinal separating unit (20) for removing a first edge region (2) and a second edge region (3) of the flat material (1). The invention further relates to a separating method (100) for separating a tubular flat material and to a system (70) having a separating device (10).

A method of film production includes the steps of obtaining defect information including information on the position of a defect (D) in a separator original sheet (12b), slitting the separator original sheet (12b) to produce a plurality of separators (12a), and determining, on the basis of the defect information on a single defect (D), that a separator (12a) actually having the defect (D) and another separator (12a) adjacent to the above separator (12a) are defective.

Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).

A device for cutting fabric-backed adhesive tapes and, in particular, a device for multiple cutting of cloth tapes to be used in the medical rehabilitation field. The device comprises first and second half-shells and is advantageously practical and versatile to meet any requirements that may arise when the adhesive tape is being used. The device further comprises a support for an adhesive tape roll.

Provided is a method for manufacturing a sheet for use in a tongue plaque cleaner, capable of reliably cutting loops of thread members provided at a given density, and forming thread members each having a shape with an arc portion sufficient enough to scrape off tongue plaque, through steps that are simple, low-cost and suitable for mass production. A method for manufacturing a sheet 1 for use in a tongue plaque cleaner for scraping off tongue plaque, includes: a step of heating a sheet material having multiple looped thread members 2 protruding from one surface of the sheet material, at a temperature below the melting point of the thread members 2; and a step of forming first thread members 3, 8 and second thread members 4, 9 by cutting loops of the thread members 2 heated.

A wrinkle caused in a separator roll is inhibited. A slitting apparatus (6) changes a conveying direction of a first separator (12a) by a direction changing roller (68) toward a first take-up roller (70U), and conveys the first separator via an assisting roller (69) which is provided between a take-up position of the first separator to be wound and the direction changing roller so as to shorten a conveying distance between the take-up position and a roller immediately before the take-up position.

A method for film production includes the steps of obtaining information on the position of a defect (D) in a separator (12a) and providing marks (LA, LB) at the respective positions in the vicinity of the defect (D), the marks indicating the position of the defect.

A separator producing method includes the steps of: winding up, around a core (81, 53), a separator (12a, 12b) having a defect (D) detected; and providing a defect code (DC2) including information on a position of the defect (D) in the longitudinal direction of the separator (12a, 12b) on (i) the outermost portion (86, 86b) of the separator (12a, 12b), wound around the core (81, 53), or (ii) the core (81, 53), around which the separator (12a, 12b) is wound.

The invention relates to a system (10) for improved introduction of a separating device (40) into a flattened film tube (2) of a blown film line (1), with a cutting device (20) for severing only a first tube side (2.1) of the film tube (2), in particular the film tube (2) which has not yet been flattened. Furthermore, the invention relates to a blown film line (1), as well as a method (100) for producing and providing at least two film webs (6).

A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.