Centre-Feed Roll And Production Methods Thereof
AssigneeGeorgia-Pacific France
InventorsYves-Michel Malecot, Joel Hungler
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Abstract
The invention relates to a coreless roll including of a sheet made of dry flexible material, such as an absorbent fibrous material, that is formed by the rolling of a sheet around a winding axis characterized in that it includes a center-feed (center unwinding) first strip forming a projection along the axis in relation to at least one part of the plane of one of the sides of the roll. In particular, this first strip is constituted by a portion of the internal end of the sheet constituting the roll. The first internal turn is thus permitted to unwind, even if the center opening is reduced.
Claims16
A manufacturing process of forming a roll without a winding tube, the roll comprising one sheet of non-moist flexible material with a center unwinding first strip forming a projection along a winding axis in relation to at least one part of at least one side of the roll, said process comprising:
- prior to rolling the sheet around the winding axis, crosswise folding of the first strip at a portion of an end of the sheet, in such a way that the portion forms a non-right angle in relation to the winding axis of the roll and extends over an edge of the sheet;
- and
- rolling the sheet around the winding axis to form the roll.
A process of making a roll without a winding tube, the roll comprising one sheet of non-moist flexible material with a center unwinding first strip forming a projection along a winding axis in relation to at least one part of at least one side of the roll, said process comprising:
- cutting the sheet of flexible material into a plurality of individual sheets arranged side by side,
- moving a portion of an end of the first strip of said individual sheets crosswise,
- rolling each end of said individual sheets around a winding support to provide a plurality of rolls, and
- separating each of the rolls after formation of said rolls to thereby release the first strip.
A manufacturing process for a roll without a winding tube, the roll comprising one sheet of non-moist flexible material with a center unwinding first strip forming a projection along a winding axis in relation to at least one part of at least one side of the roll, said process comprising:
- forming the roll by rolling the sheet onto a winding support,
- extracting the winding support, and
- causing an end portion of the first strip of the sheet to glide outside an opening made by the winding support before the opening caves in on itself in order to form said first strip.
A process for manufacturing a roll without a winding tube, the roll comprising one sheet of non-moist flexible material with a center unwinding first strip forming a projection along a winding axis in relation to at least one part of at least one side of the roll, said process comprising:
- cutting the flexible material into a plurality of individual sheets arranged side by side by a cutting device,
- winding a first turn of the roll,
- moving an end portion of the first strip crosswise of the cutting device,
- rolling said individual sheets around a winding support to provide a plurality of rolls, and
- separating each of the rolls after formation, the first strip thus being made by the end portion of each of said individual sheets and extending outward from a center onto one side of the roll.
A process for manufacturing a roll without a winding tube, the roll comprising one sheet of non-moist flexible material with a center unwinding first strip forming a projection along a winding axis in relation to at least one part of at least one side of the roll, said process comprising:
- cutting the sheet of flexible material into a plurality of individual sheets arranged side by side, moving the first strip of each of the sheets crosswise of a winding support, the first strip of each sheet coming from ends of the sheets which project outward on one side of the rolls after separating said rolls from the winding support.
A process for manufacturing a roll without a winding tube, the roll comprising one sheet of non-moist flexible material with a center unwinding first strip forming a projection along a winding axis in relation to at least one part of at least one side of the roll, wherein the first strip comprises an end portion of the sheet projecting outward in relation to a groove or a recess made on a side of the roll adjacent the winding axis, said process comprising:
- cutting the sheet of flexible material by a first cutting device into individual sheets arranged side by side, and
- providing the groove or recess by crosswise movement of a second cutting device initially aligned with the first cutting device, on a specific length of the sheet, and upon return of the second cutting device to an initial position, eliminating a part of the sheet.
A process for manufacturing a roll without a winding tube, the roll comprising one sheet of non-moist flexible material with a center unwinding first strip forming a projection along a winding axis in relation to at least one part of at least one side of the roll, the first strip comprising an element joined onto a portion of an internal end of the sheet, said process comprising:
- adding to the end of the sheet a supplemental element prior to winding or after separation of the roll.
Dependencies are inferred from the claim text.