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    Device for sealing and cutting in a packaging apparatus, a packaging process and a packaging apparatus
    4.
    发明授权
    Device for sealing and cutting in a packaging apparatus, a packaging process and a packaging apparatus 有权

    公开(公告)号：US10577142B2

    公开(公告)日：2020-03-03

    申请号：US14561254

    申请日：2014-12-05

    申请人： Cryovac, Inc.

    发明人： Massimo Alquati

    IPC分类号： B65B59/00 ,  B65B59/02 ,  B65B61/06 ,  B65B51/00 ,  B65B9/10

    摘要： A device for sealing and cutting a film in a packaging apparatus, a packaging apparatus including the device, and a process using the device are provided. The device includes first and second members, one or both of which are movable with respect to the other. One of the members includes an elongated blade, and one of the members includes a cutting means positionable in a plurality of positions. The process includes creating a first seal on a tubular film, thereby creating a semi-sealed package, creating a second seal on the semi-sealed package, thereby creating a sealed package, creating a substantially transversal cut in the tubular film, thereby separating the semi-sealed package from a subsequent portion of the tubular film, and creating an incision in a section of the first or second seal, the incision defining a pre-determined breaking zone in the tubular film of the sealed package.

    HIGH-SHRINK, HIGH-STRENGTH MULTILAYER FILM CONTAINING THREE-COMPONENT BLEND
    5.
    发明申请
    HIGH-SHRINK, HIGH-STRENGTH MULTILAYER FILM CONTAINING THREE-COMPONENT BLEND 审中-公开

    公开(公告)号：US20200062938A1

    公开(公告)日：2020-02-27

    申请号：US16604195

    申请日：2018-04-13

    申请人： CRYOVAC, INC.

    发明人： Ashley Wynne ,  Kelly Ahlgren ,  Miles Johnston ,  Rebecca Kersey

    IPC分类号： C08L23/06 ,  B65B53/02 ,  C08L23/08 ,  B32B27/08

    摘要： A heat-shrinkable film comprises a blend of 35-75 wt % of an ethylene-based polymer, 10-45 wt % of an ethylene/unsaturated ester copolymer, and 5-30 wt % of a plastomer, with the blend making up at least 20 wt % of the film. The ethylene-based polymer has a peak melt point ≥95° C. The plastomer has a peak melt point ≤90° C. and a melt index of ≤1.1 g/10 min. The film comprises a cross-linked polymer network which has been strained by solid state orientation. The film has a total free shrink at 85° C. of at least 90% and an energy-to-break of at least 0.70 J/mil.

    APPARATUS AND PROCESS FOR PACKAGING A PRODUCT
    7.
    发明申请
    APPARATUS AND PROCESS FOR PACKAGING A PRODUCT 审中-公开

    公开(公告)号：US20190055040A1

    公开(公告)日：2019-02-21

    申请号：US15577868

    申请日：2016-05-19

    申请人： CRYOVAC, INC.

    发明人： Stefano Capitani

    IPC分类号： B65B31/02 ,  B65B7/16 ,  B65B7/28 ,  B65B31/04 ,  B29C65/00 ,  B29C65/24 ,  B29C65/74

    摘要： A process and apparatus (1) for packaging a product (P) arranged on a tray (4) is disclosed. The apparatus comprises a packaging assembly (8) configured for tightly fixing one or more film sheets to one or more trays. The packaging assembly includes a lower tool (22) defining a prefixed number of seats (23) for receiving the trays and an upper tool (21) facing the lower tool and cooperating with the upper tool to define a packaging chamber (24). The packaging assembly (8) is configured to operate at least in a first operating condition, where said packaging chamber (24) is open, and in a second operating condition, where said packaging chamber (24) is hermetically closed. First injection apertures (90) are positioned in corner regions of the seat and are configured to inject streams of gas in a direction substantially parallel to and above the flange (4c) of a tray (4) positioned in said seat. The process includes the step of activating injection of a plurality of streams of gas through said first apertures (90) in order to form a controlled atmosphere inside the tray before closing the tray with the film.

    HEATING HEAD FOR PACKAGING ASSEMBLY, PACKAGING APPARATUS AND PROCESS, MANUFACTURING PROCESS FOR MAKING A HEATING HEAD
    9.
    发明申请
    HEATING HEAD FOR PACKAGING ASSEMBLY, PACKAGING APPARATUS AND PROCESS, MANUFACTURING PROCESS FOR MAKING A HEATING HEAD 审中-公开

    公开(公告)号：US20190016487A1

    公开(公告)日：2019-01-17

    申请号：US16066563

    申请日：2017-02-14

    申请人： Cryovac, Inc.

    发明人： Stefano Capitani

    IPC分类号： B65B7/16 ,  B29C65/00 ,  B29C65/74

    摘要： Packaging apparatus (1) comprises a packaging assembly (8) which has a supply unit (300) configured to supply electric energy to a conductive element of a heating head by causing an electric current flow through this conductive element; the conductive element defining a heating surface configured to heat seal one or more parts of said film. The electric conductive element comprising: a supporting substrate (206), at least a conductive structure engaged on the supporting substrate (206), at least one protective layer (208) covering the conductive structure as this latter is engaged between the supporting substrate (206) and the protective layer (208). The conductive element comprising at least one first and one second contacting tabs each integral with said conductive structure; each of said contacting tabs protruding transversally from a prevalent development surface of the conductive structure towards the supporting substrate (206) for defining a terminal contacting end. The heating head (700) comprising a first and second electric terminals respectively engaged with said first and second contacting tabs; each of said electric terminal is configured for stably constraining opposite faces of the respective contacting tab which define the thickness of said tab.