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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
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.
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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
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.
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">13.发明专利
公开(公告)号：ES2383113T3
公开(公告)日：2012-06-18
申请号：ES05701730
申请日：2005-01-12
Applicant: STORA ENSO OYJ
Inventor： MAEAETTAE PAEIVI , LAAKSO PETRI , HOVIKORPI JARI , PENTTILAE RAIMO , MIIKKI NINA , VESANTO RISTO
Abstract: Un método para sellar elementos (3, 4) de papel o cartón recubierto con plástico, el método consiste en unir los elementos a lo largo de la línea de sellado fundiendo el recubrimiento de plástico de por lo menos un elemento con rayos láser (11), el recubrimiento de plástico, cuando solidifica, genera la unión pegada de los elementos uno con el otro, caracterizado porque los elementos (3, 4) que se quieren sellar se sujetan en posición adyacente a la línea de sellado con el fin de mantener los elementos en posición fija durante el sellado y porque el sellado se realiza mediante un agente de sellado (7), que se mueve a lo largo de la línea de sellado y presiona los elementos para que se separen, con el fin de mantener abierto el punto de sellado, dirige los rayos láser (11) hacia el punto de sellado abierto para fundir el plástico y finalmente presiona los elementos uno contra otro para cerrar el sello.
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公开(公告)号：AT473927T
公开(公告)日：2010-07-15
申请号：AT06794093
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 , B65D5/42
Abstract: A board tray, a method for manufacturing a board tray and a tray blank from which the board tray is manufactured, said board tray containing side walls and a bottom wall made of a board layer provided on at least one surface thereof with a plastic coating, wherein areas of reduced thickness are formed in the board layer whereby portions of the plastic layer which have been melted and are disposed adjacent to areas of reduced thickness are compressed into such areas forming double-folded linear plastic compressions which seal on themselves.
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公开(公告)号：DE602005021063D1
公开(公告)日：2010-06-17
申请号：DE602005021063
申请日：2005-02-24
Applicant: STORA ENSO OYJ
Inventor： MAEAETTAE PAEIVI , LAAKSO PETRI , HOVIKORPI JARI , VESANTO RISTO
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Patent Agency Ranking
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
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.
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17.发明专利
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
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.
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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
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.
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公开(公告)号：ES2343467T3
公开(公告)日：2010-08-02
申请号：ES05717245
申请日：2005-02-24
Applicant: STORA ENSO OYJ
Inventor： MAATTA PAIVI , LAAKSO PETRI , HOVIKORPI JARI , VESANTO RISTO
Abstract: Método para sellar un material de papel o cartón (1, 4) contra una contrasuperficie fundiendo un polímero que está presente en el punto de sellado, siendo el sellado llevado a cabo dirigiendo un haz láser (8) a través de una capa de fibra (4) del material a la zona de sellado (9) fundiendo con ello el polímero (5, 11, 12, 14, 15) y generando así el sellado; caracterizado por el hecho de que el láser procede de una fuente láser de diodo o de Nd:YAG (7) y un pigmento absorbente de radiación está dispuesto en la zona de sellado.
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20.发明专利
公开(公告)号：CA2624040A1
公开(公告)日：2007-04-05
申请号：CA2624040
申请日：2006-09-28
Applicant: STORA ENSO OYJ
Inventor： VESANTO RISTO , MAEAETTAE PAEIVI , TANNINEN PANU , HOVIKORPI JARI , LAAKSO PETRI
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.
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