公开(公告)号：CA2552408A1

公开(公告)日：2005-07-28

申请号：CA2552408

申请日：2005-01-12

Applicant: STORA ENSO OYJ

Inventor： VESANTO RISTO ,  LAAKSO PETRI ,  HOVIKORPI JARI ,  MAEAETTAE PAEIVI ,  PENTTILAE RAIMO ,  MIIKKI NINA

IPC: B29C65/16 ,  B31B50/64 ,  B31B50/66

Abstract: The invention relates to a method and an apparatus for jointing members made of plastic-coated paper or board. In accordance with the invention, the sealable members are retained in position with clamps (8) and sealing is performed with a laser sealing means (7) moving along the sealing line, a means (9) for opening the seal point pressing the members apart to continue keeping the seal point open, a laser beam (11) being directed to the open se al point for melting the coating plastic and a means (12) for closing the seal pressing finally the members against each other, the plastic jointing the members when solidified. The method is applicable to lateral sealing of bag or container packages formed of blanks (1), among other things.

公开(公告)号：FI20031247A

公开(公告)日：2005-03-04

申请号：FI20031247

申请日：2003-09-03

Applicant: STORA ENSO OYJ

Inventor： VESANTO RISTO ,  MAEAETTAE PAEIVI

IPC: B31B50/64 ,  B29C65/00 ,  B29C65/10 ,  B31B1/64

Abstract: The invention relates to a heat-sealing method, in which a polymer material (1) forming the seal is melted or softened with an air flow (4) blown to the sealing point (11). In accordance with the invention, water (7, 9) is added to the air flow in order to increase the moisture content of the hot sealing air. The air is heated by resistance heating or flame heating and the water can be introduced in the hot air flow in the form of water, which subsequently evaporates, or in the form of water vapour. The method is suitable i.a. for producing packaging containers by sealing polymer­coated paper or board.

公开(公告)号：FI20040290A0

公开(公告)日：2004-02-25

申请号：FI20040290

申请日：2004-02-25

Applicant: STORA ENSO OYJ

Inventor： MAEAETTAE PAEIVI ,  LAAKSO PETRI ,  HOVIKORPI JARI

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.

公开(公告)号：CA2671345C

公开(公告)日：2015-06-09

申请号：CA2671345

申请日：2007-12-05

Applicant: STORA ENSO OYJ

Inventor： MAEAETTAE PAEIVI ,  TUOMINEN TOMMI ,  PENTTINEN TAPANI

IPC: B65D43/04 ,  B65D51/08 ,  B65D77/20

Abstract: A cardboard cover that seals a package and that also enables the resealing of the package. The lower surface of the cover (2) is provided with a downwards directed annular profile (3) made of an injection mouldable material, which enables the resealing of the cover and is placed inside the package when the package is sealed. The invention also relates to a package which is sealed by using the above- described cardboard cover that enables resealing. The invention also relates to a method for manufacturing a card-board cover and a method for sealing a package.

公开(公告)号：MX2013001532A

公开(公告)日：2013-03-18

申请号：MX2013001532

申请日：2011-08-25

Applicant: STORA ENSO OYJ

Inventor： MAEAETTAE PAEIVI ,  JAERVINEN JALLIINA ,  KARHU TEEMU ,  MYLLYS TIMO ,  PIRTTINIEMI OLAV ,  OJAVA AIMO

IPC: B65D1/34 ,  B31B45/00 ,  B31B50/59

Abstract: La presente invención se refiere a un método para formar un paquete mediante el moldeo de una preforma de cartón en tal, forma que un área marginal (2) de la preforma, que rodea una porción media (1) de la preforma, se dobla hacia arriba para formar las paredes laterales del paquete mientras la porción media forma el fondo del paquete. La preforma de cartón antes del moldeo es provista con al menos un área (4) de rigidez de flexión reducida que se localiza en una zona de transición (3) entre las paredes laterales y el fondo. El paquete de moldea de una preforma por lo que al menos un área (4) de rigidez de flexión reducida se localiza en las áreas dobladas entre las paredes laterales y el fondo y se extiende en la dirección en la que corre el doblez. La invención además se refiere a un paquete y una preforma de paquete que pueden utilizarse para formar tal paquete.

公开(公告)号：CA2552408C

公开(公告)日：2012-10-30

申请号：CA2552408

申请日：2005-01-12

Applicant: STORA ENSO OYJ

Inventor： MAEAETTAE PAEIVI ,  LAAKSO PETRI ,  HOVIKORPI JARI ,  PENTTILAE RAIMO ,  MIIKKI NINA ,  VESANTO RISTO

IPC: B29C65/16 ,  B31B50/64 ,  B31B50/66

Abstract: The invention relates to a method and an apparatus for jointing members made of plastic-coated paper or board. In accordance with the invention, the sealable members are retained in position with clamps (8) and sealing is performed with a laser sealing means (7) moving along the sealing line, a means (9) for opening the seal point pressing the members apart to continue keeping the seal point open, a laser beam (11) being directed to the open seal point for melting the coating plastic and a means (12) for closing the seal pressing finally the members against each other, the plastic jointing the members when solidified. The method is applicable to lateral sealing of bag or container packages formed of blanks (1), among other things.

公开(公告)号：ES2369581T3

公开(公告)日：2011-12-02

申请号：ES07734169

申请日：2007-03-31

Applicant: STORA ENSO OYJ

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

IPC: B29C45/14 ,  A23L35/00 ,  B65B7/28 ,  B65D77/20 ,  B65D53/06

Abstract: Un procedimiento para sellar un envase (1) que contiene un producto (4), en el que la parte de tapa (3) y la parte inferior (2) del envase se unen conjuntamente por medio de un material plástico (5), y en cuyo procedimiento la parte inferior (2) y la parte de tapa (3) se unen conjuntamente moldeando el material plástico (5) a ambos lados de una unión (10) entre la parte inferior y la parte de tapa de tal manera que el material plástico (5) cubra la unión (10) externamente y una la parte inferior (2) y la parte de tapa (3) conjuntamente, caracterizado por que un debilitamiento mecánico (6) se forma en el material plástico (5) o en la brida (2a) de la parte inferior (2) para facilitar la abertura del envase de cualquiera de las siguientes maneras: - el material plástico (5) se moldea de modo que se extienda más cerca del borde externo del envase en el lado de la brida (2a) de la parte inferior (2) que por encima de la parte de tapa (3), - el material plástico (5) se moldea de modo que se forme un hueco que se extiende hacia el medio del envase en el borde externo del material plástico (5), aproximadamente a la altura de la unión (10) entre la parte de tapa (3) y la parte inferior (2), - el debilitamiento (6) está formado en la brida (2a) de la parte inferior (2), dentro del borde del material plástico (5).

公开(公告)号：CA2708066A1

公开(公告)日：2010-02-18

申请号：CA2708066

申请日：2009-08-12

Applicant: STORA ENSO OYJ

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

IPC: B29C45/14 ,  B29C45/26 ,  B31B50/59 ,  B31F1/00 ,  B65D1/34 ,  B65D81/34

Abstract: The invention relates to a mould system (1) for manufacturing a container (500) and comprising a movable mould half (10) and a stationary mould half (20), which mould halves (10 and 20) are located opposite to each other; the mould system (1) can be used to manufacture the container (500), which comprises a bottom (57) pressed from a cardboard blank, walls (59) connected to the said bottom (57) and a rim (50) that is at least partly cast of plastic and connected to the upper edge of the walls (59), 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) that is movable with respect to the core (41) and comprises a seal surface (5a) and surrounds the core (41), and a collar ring (6) that is movable with respect to the core (41) and the seal ring (5) and can be fitted between the same; and the stationary mould half (20) includes at least a mould plate (7) provided with a mould cavity (71) and a seal surface (7a). In the mould system (1), an insert (9 and/or 612), which changes the function of the said seal surface or collar ring at the casting stage of the plastic rim, can be detachably attached to the seal surface (5a) of the seal ring (5) and/or the collar (61) of the collar ring (6), which insert can also be used to change the dimensions of the basic rim (50) of the container (500) or to provide the surface of the said basic rim (50) with bulges extending upwards from the rest of its plane or with grooves that are lower than the rest of the plane of the surface (50), or to form projections (55), which protrude further from the outer edge of the basic rim (50) of the container (500) and which possibly comprise suspension means (56), such as openings.

公开(公告)号：FI20080462A

公开(公告)日：2010-02-13

申请号：FI20080462

申请日：2008-08-12

Applicant: STORA ENSO OYJ

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

IPC: B65D77/20 ,  B65D77/22 ,  B65D81/34 ,  B65D85/72

Abstract: A package for ready-prepared foods which comprises a dish adapted to contain food, said dish containing a rim flange, and a lid, heat-sealed to the rim flange, wherein the rim flange is provided with a plurality of ridges which extend around substantially the entire periphery of the dish defining a space between said ridges, said space being divided into a plurality of transverse ridges which extend across the space forming a plurality of sealing compartments which substantially eliminate sealing leakage.

公开(公告)号：FI20080461A0

公开(公告)日：2008-08-12

申请号：FI20080461

申请日：2008-08-12

Applicant: STORA ENSO OYJ

Inventor： MAEAETTAE PAEIVI

IPC: B65D20060101 ,  B31B50/59

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.