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    12.
    发明专利
    未知

    公开(公告)号：AT466777T

    公开(公告)日：2010-05-15

    申请号：AT05717245

    申请日：2005-02-24

    Applicant: STORA ENSO OYJ

    Inventor： MAEAETTAE PAEIVI ,  LAAKSO PETRI ,  HOVIKORPI JARI ,  VESANTO RISTO

    IPC: B31B50/64 ,  B65B51/22 ,  B23K26/18 ,  B29C65/16 ,  B31B20060101 ,  B31B50/66

    Abstract: The invention relates to a method for sealing a fiber-based material (1, 4) to a counter-surface to be bonded to it by melting polymer present at the sealing point. In accordance with the invention, the sealing is performed by directing a laser beam (8) through the fiber layer (4) of the material to a radiation-absorbing pigment disposed in the sealing area (9), with the absorption heat melting the polymer (5) and generating the sealing. The method allows sealing of plastic-coated paper or board to itself, to another plastic counter-surface or also to paper or board without any plastic coating. It is also possible to seal uncoated paper or board to paper or board containing plastic, such as plastic-coated paper or board, or to a plastic film. The absorptive pigment, e.g. carbon black, may be admixed in the plastic coating of the board or paper or the plastic film formed on the counter-surface, or the pigment may be located on the surface of the material to be sealed or its fiber layer, or on the counter-surface to which the material is sealed, e.g. as a component of printing ink applied to the counter-surface.

    MOULD SYSTEM FOR CHANGING THE DEPTH OF A CARDBOARD-BASED CONTAINER
    13.
    发明专利
    MOULD SYSTEM FOR CHANGING THE DEPTH OF A CARDBOARD-BASED CONTAINER 未知

    公开(公告)号：CA2705377A1

    公开(公告)日：2010-02-18

    申请号：CA2705377

    申请日：2009-08-12

    Applicant: STORA ENSO OYJ

    Inventor： MAEAETTAE PAEIVI ,  TANNINEN PANU ,  PIRTTINIEMI OLAVI ,  NYLANDER NOORA ,  JAERVINEN JALLIINA ,  KARHU TEEMU

    IPC: B31B50/59 ,  B31B50/00 ,  B31F1/00 ,  B65D1/34

    Abstract: The invention relates to a mould system (1) for manufacturing a cardboard-based container, comprising a movable mould half (10) and a stationary mould half (20), which are located opposite to each other, the mould system (1) enabling the manufacture of a container (500) that comprises a bottom (57) pressed from a cardboard blank and walls (59) connected to the bottom, and a rim (50) that is at least partly cast of plastic and connected to the upper edge of the walls, encircling the walls, whereby the mould half (10) that is movable with respect to the stationary mould half (20) includes at least a core plate (4) provided with a core (41), a plate-like seal ring (5), which is movable with respect to the core (41) and comprises a seal surface (5a) and surrounds the core (41), and a collar ring (6), which can be adapted between the core (41) and the seal ring (5) and by which the rim (50) can be made on the container and which can be moved with respect to both the seal ring (5) and the core (41); and the stationary mould half (40) includes at least a mould plate (7) that is provided with a mould cavity (71) and a seal surface (7a). In the mould system (1) according to the invention, an insert (720) can be supported on and detachably attached to the base (71b) of the mould cavity (71) reducing the depth H of the mould cavity by its height h, so that the continuous surface (71b) of the insert (720) works as the new bottom (71b) of the mould cavity and that the length H of the part of the core (41) that penetrates inside the mould cavity sat the pressing stage of the cardboard blank can be shortened, respectively, by the height h of the insert, either by replacing the core (41) on the core plate with a shorter one or by detachably attaching to the basic part (41g) of the core (41), the length of which does not change an attachment part (41 f), the length of which can be changed, whereby the core or the attachments of the core and the inserts (720) of the base of the mould cavity, which correspond to each other, can be used to change the depth of the cardboard blank that is manufactured, i.e., the distance of the container bottom (57), which is pressed from the cardboard blank, from the upper edges of the container walls (59).

    14.
    发明专利
    未知

    公开(公告)号：FI20080463A

    公开(公告)日：2010-02-13

    申请号：FI20080463

    申请日：2008-08-12

    Applicant: STORA ENSO OYJ

    Inventor： MAEAETTAE PAEIVI ,  TANNINEN PANU ,  PIRTTINIEMI OLAVI ,  NYLANDER NOORA ,  JAERVINEN JALLIINA ,  KARHU TEEMU

    IPC: B31B20100101 ,  B29C20100101 ,  B31B50/59 ,  B65D20100101

    Abstract: The invention relates to a mould system (1) for making a partition in a cardboard-based container, whereby the mould system includes a moving mould half (10) and a stationary mould half (20), which are located opposite to each other, the mould system (1) enabling the manufacture of a container (500) that comprises a bottom (57) that is pressed from a cardboard blank and walls (59) connected to the bottom, and a rim (50) that is at least partly cast of plastic and connected to the upper edge of the walls, encircling the walls, whereby the mould half (10) that is movable with respect to the stationary mould half (20) includes at least a core plate (4) that is provided with a core (41), a plate-like seal ring (5), which is movable with respect to the core (41) and comprises a seal surface (5a) and surrounds the core (41), and a collar ring (6), which can be fitted between the core (41) and the seal ring (5) and by which the rim (50) can be made on the container and which can be moved with respect to both the seal ring (5) and the core (41); and the stationary mould half (40) includes at least a mould plate (7) that is provided with a mould cavity (71) and a seal surface (7a). In the mould system (1) according to the invention, at least one recess (420) is formed in the core (41) in the longitudinal direction of the core, dividing, in the lateral direction, the core (41) or the forming part of the core (41) that is pressed to the mould cavity, and facing the end (41b) of the core on the side of the mould cavity, the recess enabling the making of a plastic partition (V) that extends upwards from the bottom (57) of the cardboard-based container (500), when the said recess (420) is placed against the cardboard blank that lies on top of the mould cavity.

    17.
    发明专利
    未知

    公开(公告)号：DE602005003213T2

    公开(公告)日：2008-09-04

    申请号：DE602005003213

    申请日：2005-03-17

    Applicant: STORA ENSO OYJ

    Inventor： MAEAETTAE PAEIVI ,  TANNINEN PANU ,  VESANTO RISTO

    IPC: B65D77/20 ,  A23L5/10 ,  B65D20060101 ,  B65D81/34

    Abstract: The invention relates to a ready-made food package, to a method for manufacturing it and to the use of polymer-coated board in the ready-made food package. The package is manufactured by placing the food ( 16 ) in a raw state in the tray ( 2 ) where the food is baked, and by closing the tray with a lid ( 4 ) after baking. In accordance with the invention, the lid ( 4 ) is formed from a blank cut from polymer-coated board, the blank being placed over the mouth of the tray ( 2 ), and then the edges ( 9 ) of the blank are bent under the rim flange ( 6 ) of the tray and heat-sealed to the lower surface ( 11 ) of the rim flange by means of the polymer coating ( 14 ) of the board. The lid can be additionally heat-sealed to the upper surface ( 10 ) of the rim flange, so that two sealing lines ( 15 ) will be formed inside each other in the package. Accordingly, the tray ( 2 ) can be formed of polymer-coated board or optionally of polymer or aluminium alone.

    19.
    发明专利
    未知

    公开(公告)号：FI20060319A

    公开(公告)日：2007-10-01

    申请号：FI20060319

    申请日：2006-03-31

    Applicant: STORA ENSO OYJ

    Inventor： MAEAETTAE PAEIVI ,  VESANTO RISTO ,  PENTTINEN TAPANI ,  VESANTO HELI ,  JAERVELAE PENTTI ,  ELORAE MARJO ,  HIETARANTA TAPIO

    IPC: B65B7/28 ,  A23L35/00 ,  B65D53/06 ,  B65D77/20

    Abstract: The invention relates to a method for sealing a package (1) containing a product (4), wherein the lid portion (3) and the bottom portion (2) of the package are joined together by means of plastic material. The bottom portion (2) and the lid portion (3) are joined together by sealing by injection molding, by molding plastic material (5) on both sides of a joint (10) between the bottom portion and the lid portion in such a way that the plastic material (5) exteriorly covers the joint (10) on the outside and joins the bottom portion (2) and the lid portion (3) together.

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