Method for the production of sheet-like tobacco material

    公开(公告)号:US11825869B2

    公开(公告)日:2023-11-28

    申请号:US16605829

    申请日:2018-04-13

    Inventor: Stefano Zappoli

    CPC classification number: A24B3/14 A24D3/0204

    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. Further, the method comprises crimping the substantially continuous sheet of material to form the crimped sheet by feeding the substantially continuous sheet between the first and second rollers in the transport direction of the sheet such that the corrugations of the first roller apply a plurality crimp corrugations to the substantially continuous sheet.

    Method and apparatus for manufacturing a crimped web

    公开(公告)号:US11730185B2

    公开(公告)日:2023-08-22

    申请号:US15521640

    申请日:2015-11-02

    Inventor: Stefano Zappoli

    CPC classification number: A24B13/00 A24B15/10 A24D3/0204

    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.

    APPARATUS AND METHOD FOR THE PRODUCTION OF SHEET LIKE TOBACCO MATERIAL

    公开(公告)号:US20220151287A1

    公开(公告)日:2022-05-19

    申请号:US17592089

    申请日:2022-02-03

    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.

    Apparatus and method for the production of sheet like tobacco material

    公开(公告)号:US11252995B2

    公开(公告)日:2022-02-22

    申请号:US16605443

    申请日:2018-04-13

    Inventor: Stefano Zappoli

    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.

    APPARATUS AND METHOD FOR THE PRODUCTION OF SHEET LIKE TOBACCO MATERIAL

    公开(公告)号:US20200337361A1

    公开(公告)日:2020-10-29

    申请号:US16604691

    申请日:2018-04-12

    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.

Patent Agency Ranking