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    62.
    发明专利
    未知

    公开(公告)号：FI118379B

    公开(公告)日：2007-10-31

    申请号：FI20040290

    申请日：2004-02-25

    Applicant: STORA ENSO OYJ

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

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

    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.

    63.
    发明专利
    未知

    公开(公告)号：FI20060319A0

    公开(公告)日：2006-03-31

    申请号：FI20060319

    申请日：2006-03-31

    Applicant: STORA ENSO OYJ

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

    IPC: A23L35/00 ,  B65D20060101

    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.

    A METHOD FOR MANUFACTURING A BOARD TRAY, A BLANK FOR THE TRAY, AND A TRAY OBTAINED BY THE METHOD
    64.
    发明专利
    A METHOD FOR MANUFACTURING A BOARD TRAY, A BLANK FOR THE TRAY, AND A TRAY OBTAINED BY THE METHOD 未知

    公开(公告)号：CA2624040C

    公开(公告)日：2016-04-05

    申请号：CA2624040

    申请日：2006-09-28

    Applicant: STORA ENSO OYJ

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

    IPC: B65D1/34 ,  B29C43/20 ,  B31B45/00 ,  B31B50/59 ,  B32B27/10 ,  B65B43/08 ,  B65D20060101 ,  B65D1/40

    Abstract: The invention relates to a method for manufacturing a board tray (7), to a tray blank feasible for the method, and to a tray obtained by the method. The method comprises moulding a blank of plastic-coated board into the tray (7) comprising a bottom (3), side walls (4), as well as a rim flange (5), the blank being compressed in a direction transverse to the tray's side walls and rim flange. According to the invention, the blank is made thinner on its side opposite to the plastic coating such that, during , the moulding process, the plastic coating double-folds at the compressed parts and stabilizes compressions (8) by becoming sealed to itself. Making the blank thinner is most conveniently effected by carving the board layer with a laser beam for having the fiber material predominantly or completely removed from where the cuts are located. As a result of the moulding process, the tray's rim flange (5) develops a smooth plastic surface which enables closing the tray hermetically with a heat-sealed cover.

    PACKAGE FOR READY-PREPARED FOODS
    65.
    发明专利
    PACKAGE FOR READY-PREPARED FOODS 未知

    公开(公告)号：CA2701342C

    公开(公告)日：2015-11-03

    申请号：CA2701342

    申请日：2009-08-12

    Applicant: STORA ENSO OYJ

    Inventor： MAEAETTAE PAEIVI ,  SARIN TAPANI ,  MYLLYS TIMO ,  JAERVINEN JALLIINA ,  KARHU TEEMU

    IPC: B65D77/20 ,  B65D81/34

    Abstract: The invention relates to a package for ready-prepared foods, which comprises a dish (1) containing packed food that has been cooked in the dish, and a lid heat- sealed to the rim flange (2) of the dish. Upon cooking grease lands onto the rim flange, the detriment of which caused to the sealing has in the invention been prevented by pro-viding the rim flange with elevated ridges (3, 4) so that, upon closing the dish, a gastight sealing line is formed between the lid and the ridges. Accord-ing to the invention the rim flange has two or more concentric longitudinal ridges (3) circulating the dish and transverse ridges (4), by means of which the space between two longitudinal ridges (3) has been divided into at least five compartments for di-minishing the possibility of sealing leakages. In practice there can be considerably more compart-ments, suitably 10-200. The dish can be made of polymer- coated cardboard, the rim flange of injec-tion-moulded plastics and the lid of polymer-coat-ed paper so that a closure making possible the pulling off of the lid is produced during heat-seal-ing.

    METHOD FOR SEALING A FIBER-BASED MATERIAL
    67.
    发明专利
    METHOD FOR SEALING A FIBER-BASED MATERIAL 未知

    公开(公告)号：CA2557506C

    公开(公告)日：2012-12-04

    申请号：CA2557506

    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 fibre-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 fibre 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 fibre 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.

    68.
    发明专利
    未知

    公开(公告)号：FI122995B

    公开(公告)日：2012-09-28

    申请号：FI20080461

    申请日：2008-08-12

    Applicant: STORA ENSO OYJ

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

    IPC: B29C45/10 ,  B31B50/59 ,  B65D1/40

    Abstract: A mould system for manufacturing a container which includes a movable mould half and a stationary mould half which are positioned opposite to each other, wherein the movable mould half includes a core plate provided with a core, a plate-like seal ring that is movable relative to the core, a seal surface which surrounds the core, and a collar ring that is movable relative to the core and the stationary mould half includes a mould plate provided with a mould cavity and a seal surface, wherein in the mould system, a plate-like insert is connected to the seal surface of the seal ring, the insert including a recess which is in contact with a front edge of the seal surface, so that it is in flow communication with molten plastic material flowing from the direction of the collar ring.

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