A web tensioner, a web slitter, a method of tensioning a web, and a method of slitting a web are provided. A corrugated edge nip is used in the tensioner, the slitter, and the methods of tensioning and slitting. The corrugated edge nip can provide a crossweb tension to a suspended web or film in a web line. The corrugated edge nip can be used in conjunction with, for example, a rotary shear slitter to improve slit edge quality.

A web tensioner, a web slitter, a method of tensioning a web, and a method of slitting a web are provided. A corrugated edge nip is used in the tensioner, the slitter, and the methods of tensioning and slitting. The corrugated edge nip can provide a crossweb tension to a suspended web or film in a web line. The corrugated edge nip can be used in conjunction with, for example, a rotary shear slitter to improve slit edge quality.

The invention relates to a web guiding device (3) for guiding a material web (2), in particular a film web, with a first and a second frame element (31, 32), which are pivotably mounted on a first spindle (33) in respective first end areas (311, 321), are connected via a rotatably mounted web guide roller (34) in respective second end areas (321, 322) and are connected via a second spindle (35) which is connected to the first spindle (33) by means of a fixing element (37).

The invention relates to a web guiding device (3) for guiding a material web (2), in particular a film web, with a first and a second frame element (31, 32), which are pivotably mounted on a first spindle (33) in respective first end areas (311, 321), are connected via a rotatably mounted web guide roller (34) in respective second end areas (321, 322) and are connected via a second spindle (35) which is connected to the first spindle (33) by means of a fixing element (37).

A film treating method includes feeding a film from a film feeder, moving the film along an outer circumference of a fixed support unit, which supports the film and guides the movement of the film, applying tension to the film by moving a variable support unit from a first surface of the film toward a second surface of the film, processing the film, and collecting the film.

A film treating method includes feeding a film from a film feeder, moving the film along an outer circumference of a fixed support unit, which supports the film and guides the movement of the film, applying tension to the film by moving a variable support unit from a first surface of the film toward a second surface of the film, processing the film, and collecting the film.

A movable material web assembly for use in conditioning a material web comprising a substrate layer and a protective layer covering the substrate layer comprising a first web transportation assembly selectively conveying said material web along an axis of movement via a material web roller; and a stripping roller oriented at an angle to said axis of movement, and is selectively engaged to strip away the protective layer as the material web is communicated along the axis of movement; and the stripping roller selectively strips the protective layer in a direction substantially orthogonal to the axis of movement.

A movable material web assembly for use in conditioning a material web comprising a substrate layer and a protective layer covering the substrate layer comprising a first web transportation assembly selectively conveying said material web along an axis of movement via a material web roller; and a stripping roller oriented at an angle to said axis of movement, and is selectively engaged to strip away the protective layer as the material web is communicated along the axis of movement; and the stripping roller selectively strips the protective layer in a direction substantially orthogonal to the axis of movement.

A web tension device includes a pressure source and a stationary housing. A translatable unit is translatable into and out of a cavity of the housing and includes an inlet that is connectable to the pressure source. A distal end of the translatable unit includes a tensioning surface with openings to enable outflow of pressurized fluid to apply a pushing force to a web in a roll-to-roll process. Proximal openings enable outflow of the fluid into a gap between the housing and the translatable unit. When tension of the web is reduced, an outward force that is exerted by pressure in the gap pushes the translatable unit outward, pushing the web outward until an inward force that is exerted by the web balances the outward force. When tension of the web increases, the inward force pushes the translatable unit inward until the inward force is balanced by the outward force.

A web tension device includes a pressure source and a stationary housing. A translatable unit is translatable into and out of a cavity of the housing and includes an inlet that is connectable to the pressure source. A distal end of the translatable unit includes a tensioning surface with openings to enable outflow of pressurized fluid to apply a pushing force to a web in a roll-to-roll process. Proximal openings enable outflow of the fluid into a gap between the housing and the translatable unit. When tension of the web is reduced, an outward force that is exerted by pressure in the gap pushes the translatable unit outward, pushing the web outward until an inward force that is exerted by the web balances the outward force. When tension of the web increases, the inward force pushes the translatable unit inward until the inward force is balanced by the outward force.