EP0192537B1 - Conditionnement étanche à l'humidité et aux gaz, et obturable par un film de matière thermoplastique - Google Patents

Conditionnement étanche à l'humidité et aux gaz, et obturable par un film de matière thermoplastique Download PDF

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Publication number
EP0192537B1
EP0192537B1 EP86400225A EP86400225A EP0192537B1 EP 0192537 B1 EP0192537 B1 EP 0192537B1 EP 86400225 A EP86400225 A EP 86400225A EP 86400225 A EP86400225 A EP 86400225A EP 0192537 B1 EP0192537 B1 EP 0192537B1
Authority
EP
European Patent Office
Prior art keywords
pack
covering
walls
film
edge portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86400225A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0192537A1 (fr
Inventor
Philippe Dropsy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continentale Du Carton Ondule Socar SA Ste
Original Assignee
Continentale Du Carton Ondule Socar SA Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continentale Du Carton Ondule Socar SA Ste filed Critical Continentale Du Carton Ondule Socar SA Ste
Priority to AT86400225T priority Critical patent/ATE35118T1/de
Publication of EP0192537A1 publication Critical patent/EP0192537A1/fr
Application granted granted Critical
Publication of EP0192537B1 publication Critical patent/EP0192537B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/62—External coverings or coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/001—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper stackable
    • B65D5/0015—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper stackable the container being formed by folding up portions connected to a central panel
    • B65D5/003—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper stackable the container being formed by folding up portions connected to a central panel having ledges formed by extensions of the side walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/939—Container made of corrugated paper or corrugated paperboard

Definitions

  • the present invention applies more particularly to packaging made of semi-rigid material, for example corrugated cardboard, provided at their upper part with at least two horizontal entablatures constituting bearing surfaces for another packaging, when several of the latter are stacked.
  • semi-rigid material for example corrugated cardboard
  • a package of this type which comprises a bottom on which are articulated, by fold lines, two transverse side walls and two longitudinal side walls which are extended at their ends by wings which double the transverse walls, thereby strengthening the stacking resistance of the packaging, two horizontal entablatures articulated by fold lines along the upper edges of the longitudinal walls, extending parallel to said bottom towards the inside of the tray.
  • French patents No. 1,515,445, US-A-3866816 and EP-A-0 072 742 each describe a means for internally sealing a cardboard packaging in the form of a tray, but not provided with entablatures extending towards the interior, this means consisting of a protective film of thermoplastic material which extends without discontinuity on the internal faces of the packaging and which is adhered thereto by application of heat or by means of a thermoplastic binder .
  • the blank of starting cardboard is placed in a mold with its side walls erected, and the film of thermoplastic material is introduced in the heated state, by suction or by blowing inside the blank. mounted cardboard, then the film is adhered to the blank.
  • the present invention aims to achieve protection of this type for packaging provided with fittings.
  • the packaging is characterized in that it comprises a coating consisting of a film of thermoplastic material which is applied by thermoforming against the internal faces of the bottom and of the side walls and which, without discontinuity, extends against the underside of the entablatures and folds down to be applied against the upper face of the latter.
  • thermoforming only packages which have no restriction of the section above the bottom.
  • patent EP-A-0 072 742 which is provided with fittings extending outwards.
  • the thermoplastic film is normally applied to the internal walls of the packaging and to the upper face of the entablature.
  • the entablatures constitute a restriction on the section of the packaging.
  • thermoplastic film can be used in the context of the invention. Note however that if the film is semi-rigid, for example of the polystyrene type, it is not necessary to adhere it to the cardboard walls, since the coating self-locks inside the packaging in cardboard. Indeed, if one tries to extract the entire coating from the packaging, for example by pulling on the edges of the coating which cover the upper face of the entablatures, the latter oppose this removal by the causes the covering to have an internal section greater than that of the opening defined between the entablatures.
  • thermoplastic film is flexible and easily deformable, it must be made to adhere to the walls of the cardboard packaging.
  • a plastic film one of the faces of which comprises an adhesive agent, which reactivates when the film is reheated to allow its thermoforming, or print on the internal surface of the cardboard areas of coating adhesive which reactivates upon thermoforming.
  • thermoplastic material of the film must be of food grade so that it does not alter the taste of the food which is packaged there.
  • the film thickness can be between 100 and 500 wm.
  • the strips of film which cover the external faces of the entablatures as well as the thicknesses of the other walls of the packaging project towards the outside of the latter, forming a peripheral rim on which can be heat-sealed a lid in thermoplastic material intended to guarantee perfect sealing of the packaging vis-à-vis the ambient environment.
  • the cardboard packaging is also protected by an external coating of thermoplastic material having the shape of a shell which is applied against the external faces of the bottom and side walls of the packaging and which ends at its upper edge by a peripheral rim parallel to the bottom and projecting laterally towards the outside, the peripheral portion of internal covering which covers the external faces of the entablatures and the upper edges of the other walls of the package also projecting outside of the latter, forming a projecting peripheral rim, said rims of the external shell and the internal coating being heat-sealed together.
  • the packaging shown in Figures 1 and 2 consists of a parallelepiped plate 10 of corrugated cardboard of a type known per se. It comprises a bottom 12, longitudinal walls 14 and transverse walls 16 articulated on the bottom by fold lines and raised relative to this bottom.
  • the grooves of the corrugated board are oriented so that, when the walls are erected, the grooves 18 of the longitudinal walls are vertical.
  • transverse walls 16 At the ends of the transverse walls 16 are articulated, by fold lines, sections 20 which are placed in the corners of the plate. These sections are themselves extended by lateral wings 22 which are applied and glued against the internal face of the longitudinal walls 14.
  • articulations are articulated 24 which are folded inwards to occupy a position parallel to the bottom 12. These entablatures are maintained in this position by means of lugs 26 articulated at their ends and which are glued or stapled to the external faces of the longitudinal walls.
  • the tray is internally waterproofed by means of a coating 28 of thermoplastic film.
  • a coating 28 of thermoplastic film For this, the tray, previously set in volume, is placed inside a mold, then the film is heated to its softening temperature and introduced into the tray, for example by suction or by blowing, so that it comes to apply without discontinuity on the bottom 10, the side walls 14, 16, 20, as well as on the underside of the entablatures 24, then folds down to be applied on the upper face of the latter.
  • the starting blank of the coating is preferably oversized so that the peripheral strip of film 30 which covers the upper face of the entablatures 24 and the upper edges of the longitudinal walls 14, projects outwardly beyond the latter.
  • a cover 32 is made of thermoplastic material, which seals the plate.
  • the inner lining 28 is made of flexible, easily deformable thermoplastic film, it is necessary to adhere it to the cardboard of the tray so that it cannot be removed from the latter.
  • a film can also be used, one of the faces of which comprises an adhesive agent 34, which reactivates when the film is reheated.
  • the coating 28 is semi-rigid ( Figure 3), it is not mandatory to adhere it to the cardboard, since it self-locks inside the tray. Indeed, if an attempt is made to separate the coating from the plate by pulling on the peripheral strip 30, the coating portions which are embedded under the entablatures are retained by the latter. They can hardly be forced through the opening defined between the entablatures, because of their relative rigidity. It goes without saying, however, that the locking can be reinforced by means of several lines of adhesive printed for example on the bottom 12 of the plate.
  • the attachment of the coating 28 to the plate can be further reinforced by forming on the entablatures 24 windows or cutouts 36.
  • the surfaces of the film which are facing through the windows and which are located on both sides of the entablatures, are welded together.
  • the cardboard packaging is protected not only internally by the coating 28 already described, but also externally by a shell-shaped coating 38 made of thermoplastic material which is applied to the external faces of the bottom 12 and of the side walls.
  • the shell ends at its upper edge by a peripheral rim 40 which extends laterally outwards parallel to the bottom. This rim is heat sealed to the rim 30 of the internal coating which is made to project slightly for this purpose in 30 ′ outside the walls of the packaging.
  • This conditioning is carried out in a simple manner using simple means used in the thermoforming technique.
  • the cardboard cutout is introduced by simultaneously erecting its walls.
  • the coating 28 is then thermoformed inside of the cardboard tray thus placed in volume and the shell and the internal coating are heat sealed by their external edges 30 'and 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)
  • Laminated Bodies (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP86400225A 1985-02-04 1986-02-03 Conditionnement étanche à l'humidité et aux gaz, et obturable par un film de matière thermoplastique Expired EP0192537B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86400225T ATE35118T1 (de) 1985-02-04 1986-02-03 Durch eine thermoplastische folie verschliessbare feuchtigkeitsfeste und gasdichte verpackung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8501492 1985-02-04
FR8501492A FR2576874B1 (fr) 1985-02-04 1985-02-04 Conditionnement porteur etanche a l'humidite et aux gaz et obturable par un film de matiere plastique

Publications (2)

Publication Number Publication Date
EP0192537A1 EP0192537A1 (fr) 1986-08-27
EP0192537B1 true EP0192537B1 (fr) 1988-06-15

Family

ID=9315896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400225A Expired EP0192537B1 (fr) 1985-02-04 1986-02-03 Conditionnement étanche à l'humidité et aux gaz, et obturable par un film de matière thermoplastique

Country Status (9)

Country Link
US (1) US4722474A (ja)
EP (1) EP0192537B1 (ja)
JP (1) JPS61190438A (ja)
AT (1) ATE35118T1 (ja)
AU (1) AU581958B2 (ja)
CA (1) CA1252073A (ja)
DE (1) DE3660306D1 (ja)
ES (1) ES8702274A1 (ja)
FR (1) FR2576874B1 (ja)

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FR2644138B1 (fr) * 1989-03-09 1991-11-15 Socar Plateau d'emballage a revetement interieur thermoforme
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FR2719288B1 (fr) * 1994-04-28 1996-07-19 Sca Emballage France Emballage en forme de conteneur, procédé de réalisation d'un tel emballage et installation pour la mise en Óoeuvre du procédé.
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FR2757135B1 (fr) * 1996-12-12 1999-03-05 Smurfit Socar Sa Conditionnement en un materiau semi-rigide, obturable par un film d'une matiere thermoplastique, et procede d'obturation de ce conditionnement
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NL1016099C2 (nl) 2000-09-04 2002-03-07 Kappa Packaging B V Gasdichte transportverpakking, alsmede werkwijze en inrichting voor het vervaardigen daarvan.
FR2832695B1 (fr) 2001-11-27 2004-06-18 Smurfit Socar Sa Plateau pour le conditionnement de denrees en milieu a haute teneur en humidite et flan pour la realisation de ce plateau
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FR2852923B1 (fr) 2003-03-28 2005-06-24 Smurfit Socar Sa Perfectionnements aux emballages en un materiau semi-rigide, a l'interieur desquels est thermoformee une pellicule de protection en matiere plastique.
US20050077297A1 (en) * 2003-10-09 2005-04-14 Sonoco Development, Inc. Container with easily removable membrane lid
US7888405B2 (en) 2004-01-30 2011-02-15 E. I. Du Pont De Nemours And Company Aliphatic-aromatic polyesters, and articles made therefrom
US20070151685A1 (en) * 2004-06-29 2007-07-05 Weyerhaeuser Co. Cellulose-based substrates encapsulated with polymeric films and adhesive
US20050284564A1 (en) * 2004-06-29 2005-12-29 Horsfield Brian C Process for encapsulation of cellulose based substrates using adhesive
US7247216B2 (en) * 2004-06-29 2007-07-24 Weyerhaeuser Co. Process for encapsulation of cellulose based substrate using non-electromagnetic heating
US20050287321A1 (en) * 2004-06-29 2005-12-29 Horsfield Brian C Cellulose based substrates encapsulated with polymeric films and adhesive
US7384497B2 (en) * 2004-06-29 2008-06-10 Weyerhaeuser Company Process for encapsulation of cellulose based substrates using electromagnetic radiation heating
US20060263492A1 (en) * 2005-05-04 2006-11-23 Daniel Whittles Produce packaging system and method of use
US7624911B2 (en) * 2005-06-29 2009-12-01 International Paper Co. Container with freestanding insulating encapsulated cellulose-based substrate
US7870992B2 (en) 2005-06-29 2011-01-18 International Paper Co. Container with freestanding insulating encapsulated cellulose-based substrate
US20070090172A1 (en) * 2005-10-25 2007-04-26 David Lyon Vegetable and fruit packaging box
FR2921297B1 (fr) * 2007-09-24 2010-05-07 Smurfit Kappa France Sas Procede de fabrication d'un emballage, a l'interieur duquel est thermoformee une pellicule perforee en matiere plastique, et emballage ainsi obtenu
US9365980B2 (en) 2010-11-05 2016-06-14 International Paper Company Packaging material having moisture barrier and methods for preparing same
US9358576B2 (en) 2010-11-05 2016-06-07 International Paper Company Packaging material having moisture barrier and methods for preparing same
GB2528134A (en) * 2014-07-11 2016-01-13 Colpac Ltd Film lidded tray
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FI127609B (fi) * 2016-03-15 2018-10-15 Jospak Oy Tuotepakkaus ja menetelmä sen valmistamiseksi
ES2588261B1 (es) * 2016-04-15 2017-05-10 Universidad Politécnica De Cartagena Envase de cartón para envasado activo de frutas y hortalizas frescas, y procedimiento de fabricación del mismo
US11370576B1 (en) 2021-01-29 2022-06-28 International Paper Company Straddle flange top seal punnet

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Also Published As

Publication number Publication date
ES551633A0 (es) 1986-12-16
EP0192537A1 (fr) 1986-08-27
CA1252073A (fr) 1989-04-04
JPS61190438A (ja) 1986-08-25
US4722474A (en) 1988-02-02
DE3660306D1 (en) 1988-07-21
FR2576874B1 (fr) 1987-10-02
AU5320286A (en) 1986-08-07
FR2576874A1 (fr) 1986-08-08
ATE35118T1 (de) 1988-07-15
ES8702274A1 (es) 1986-12-16
AU581958B2 (en) 1989-03-09

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