Abstract: The invention relates to an apparatus and a method of manufacturing a crimped sheet (70) of material for an aerosol-generating article. The method comprises the step of feeding a substantially continuous sheet of material to a set of crimping rollers (11, 21) in a transport direction (1), the set of crimping rollers comprising a first roller (11) having a first surface (12) and having a first plurality of ridges (17) across at least a portion of its width and a second roller having a second surface, the second surface (22) being formed at least for a portion thereof in a material having an hardness lower than the hardness of a material forming the first surface.

Abstract: An apparatus for manufacturing a crimped web for an aerosol-generating article is provided, the apparatus including: a set of crimping rollers including a first roller and a second roller, each of which is corrugated across at least a portion of a width thereof, the first and the second rollers being arranged such that corrugations of the first roller substantially interleave with corrugations of the second roller, pitch values of the corrugations of one or both of the first and the second rollers varying across the width of the rollers, and the pitch values of substantially all of the corrugations of the first and the second rollers varying from about 0.5 mm to about 1.7 mm. A crimped sheet, and a method of manufacturing an aerosol-generating article component, are also provided.

Abstract: An apparatus for and a method of manufacturing a crimped web for an aerosol-generating article is provided, including feeding a substantially continuous web to a set of crimping rollers including a first roller and a second roller, each of which is corrugated across at least a portion of a width thereof; and crimping the web by feeding the web between the rollers in a longitudinal direction of the web such that corrugations of the rollers apply a plurality of longitudinally extending and substantially parallel crimp corrugations to the web, wherein pitch values of the corrugations of one or both of the rollers vary across the width thereof such that pitch values of the crimp corrugations vary across a width of the crimped web.

Abstract: The present invention relates to an apparatus (100) for crimping a sheet of material (6), the apparatus comprising: a first (9) and a second (10) facing crimping rollers defining a first (1) and a second (22) rotational axis, respectively, the first and second axis being parallel to each other, wherein at least one of the first and second crimping roller includes a plurality of corrugations; an angle changing device, the angle changing device being adapted to change a crimping angle (11) formed between a fixed reference plane (12) and a movable plane (13) containing the first and the second rotational axis.

Abstract: The invention relates to an apparatus for crimping a sheet of material, the apparatus comprising a first and second facing crimping roller defining a first and second rotation axis, respectively, the first roller including: a first plurality of circumferential ridges, each ridge defining a ridge amplitude; wherein each of said first plurality of ridges is interrupted along its circumferential extension forming an interruption gap where for a given interruption angle an amplitude of the ridge differs from the ridge amplitude in the remaining circumferential extension of the ridge; wherein said plurality of interruption gaps forms an interruption band defining a direction of extension, said direction of extension being angled with respect to a direction defined by the first rotation axis of an angle comprised between about 2° to about 25°. The invention also relates to a method for crimping a sheet of material as well as a crimped sheet of material and a rod made of a crimped sheet.

Abstract: The invention relates to a method or apparatus (10) for crimping a sheet (70) of material The apparatus comprises a transport device to transport the sheet of material along a transport direction (1), and a set of crimping rollers (11, 21). The set comprises a first (11) and a second (21) main crimping roller, defining a first (18) and a second (28) rotational axis and being faced one in front of the other, the first roller including a first plurality of ridges (17) across a portion of its width (16), and the second roller having a second plurality of ridges (27) across a portion of its width; and a pre-crimping roller facing the first roller and having a third plurality of ridges across a portion of its width, the pre-crimping roller having a diameter smaller than a diameter of the first and second main roller.

Abstract: The invention relates to an apparatus (10) for crimping a sheet (40) of material, the apparatus comprising a first and second facing crimping roller (11, 21) defining a first and second rotation axis, respectively, the first roller including: •a first plurality of circumferential ridges (16), each ridge defining a ridge amplitude; •wherein each of said first plurality of ridges is interrupted along its circumferential extension forming an interruption gap where for a given interruption angle an amplitude of the ridge differs from the ridge amplitude in the remaining circumferential extension of the ridge; •wherein said plurality of interruption gaps forms an interruption band defining a direction of extension, said direction of extension being angled with respect to a direction defined by the first rotation axis of an angle comprised between about 2° to about 25°. The invention also relates to a method for crimping a sheet of material as well as a crimped sheet of material and a rod made of a crimped sheet.

Abstract: The apparatus for shaping substantially flat continuous material comprises a shaping device for gathering substantially flat continuous material transverse to a longitudinal direction of the continuous material to form a gathered continuous material. The apparatus further comprises a cooling device for cooling the gathered continuous material. The shaping device and the cooling device are combined such as to immediately cool the gathered continuous material.

Abstract: The apparatus (10) for processing a continuous band of wrapping material (40) comprises a roller pair (20, 30) defining a roller gap (12) there between, wherein the rollers (20, 30) have matching convex and concave shapes, respectively. The invention is also directed to a corresponding method for treatment of wrapping material (40).

Abstract: The invention relates to an apparatus (10) for crimping a sheet (40) of material, the apparatus comprising a first and second facing crimping roller (11, 21) defining a first and second rotation axis, respectively, the first roller including:•a first plurality of circumferential ridges (16), each ridge defining a ridge amplitude;•wherein each of said first plurality of ridges is interrupted along its circumferential extension forming an interruption gap where for a given interruption angle an amplitude of the ridge differs from the ridge amplitude in the remaining circumferential extension of the ridge;•wherein said plurality of interruption gaps forms an interruption band defining a direction of extension, said direction of extension being angled with respect to a direction defined by the first rotation axis of an angle comprised between about 2° to about 25°. The invention also relates to a method for crimping a sheet of material as well as a crimped sheet of material and a rod made of a crimped sheet.

Abstract: The invention relates to a method or apparatus (10) for crimping a sheet (70) of material The apparatus comprises a transport device to transport the sheet of material along a transport direction (1), and a set of crimping rollers (11, 21). The set comprises a first (11) and a second (21) main crimping roller, defining a first (18) and a second (28) rotational axis and being faced one in front of the other, the first roller including a first plurality of ridges (17) across a portion of its width (16), and the second roller having a second plurality of ridges (27) across a portion of its width; and a pre-crimping roller facing the first roller and having a third plurality of ridges across a portion of its width, the pre-crimping roller having a diameter smaller than a diameter of the first and second main roller.

Abstract: The invention relates to an apparatus and a method of manufacturing a crimped sheet (70) of material for an aerosol-generating article. The method comprises the step of feeding a substantially continuous sheet of material to a set of crimping rollers (11, 21) in a transport direction (1), the set of crimping rollers comprising a first roller (11) having a first surface (12) and having a first plurality of ridges (17) across at least a portion of its width and a second roller having a second surface, the second surface (22) being formed at least for a portion thereof in a material having an hardness lower than the hardness of a material forming the first surface.

Abstract: The apparatus for shaping substantially flat continuous material comprises a shaping device for gathering substantially flat continuous material transverse to a longitudinal direction of the continuous material to form a gathered continuous material. The apparatus further comprises a cooling device for cooling the gathered continuous material. The shaping device and the cooling device are combined such as to immediately cool the gathered continuous material.

Abstract: The present invention relates to an apparatus (100) for crimping a sheet of material (6), the apparatus comprising: a first (9) and a second (10) facing crimping rollers defining a first (1) and a second (22) rotational axis, respectively, the first and second axis being parallel to each other, wherein at least one of the first and second crimping roller includes a plurality of corrugations; an angle changing device, the angle changing device being adapted to change a crimping angle (11) formed between a fixed reference plane (12) and a movable plane (13) containing the first and the second rotational axis.

Abstract: The apparatus (10) for processing a continuous band of wrapping material (40) comprises a roller pair (20, 30) defining a roller gap (12) there between, wherein the rollers (20, 30) have matching convex and concave shapes, respectively. The invention is also directed to a corresponding method for treatment of wrapping material (40).

Abstract: The apparatus for shaping substantially flat continuous material comprises a shaping device (500) for gathering substantially flat continuous material transverse to a longitudinal direction of the continuous material to form a gathered continuous material. The apparatus further comprises a cooling device (75) for cooling the gathered continuous material. The shaping device and the cooling device are combined such as to immediately cool the gathered continuous material.

Abstract: The apparatus for shaping substantially flat continuous material comprises a shaping device (500) for gathering substantially flat continuous material transverse to a longitudinal direction of the continuous material to form a gathered continuous material. The apparatus further comprises a cooling device (75) for cooling the gathered continuous material. The shaping device and the cooling device are combined such as to immediately cool the gathered continuous material.

Abstract: An apparatus for and a method of manufacturing a crimped web for an aerosol-generating article is provided, including feeding a substantially continuous web to a set of crimping rollers including a first roller and a second roller, each of which is corrugated across at least a portion of a width thereof; and crimping the web by feeding the web between the rollers in a longitudinal direction of the web such that corrugations of the rollers apply a plurality of longitudinally extending and substantially parallel crimp corrugations to the web, wherein pitch values of the corrugations of one or both of the rollers vary across the width thereof such that pitch values of the crimp corrugations vary across a width of the crimped web.