EP0251877A1 - Procédé d'obtention de produits alimentaires emballés de façon étanche dans des récipients, installation pour la mise en oeuvre de ce procédé; récipient destiné en particulier à l'emballage étanche de produits alimentaires - Google Patents

Procédé d'obtention de produits alimentaires emballés de façon étanche dans des récipients, installation pour la mise en oeuvre de ce procédé; récipient destiné en particulier à l'emballage étanche de produits alimentaires Download PDF

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Publication number
EP0251877A1
EP0251877A1 EP87401414A EP87401414A EP0251877A1 EP 0251877 A1 EP0251877 A1 EP 0251877A1 EP 87401414 A EP87401414 A EP 87401414A EP 87401414 A EP87401414 A EP 87401414A EP 0251877 A1 EP0251877 A1 EP 0251877A1
Authority
EP
European Patent Office
Prior art keywords
container
deformable part
food products
deformable
aforementioned
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.)
Withdrawn
Application number
EP87401414A
Other languages
German (de)
English (en)
French (fr)
Inventor
Bernard Vulliez
Patrick Vulliez
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.)
SOCIETE VULLIEZ S.A.
Original Assignee
Vulliez 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 Vulliez Sa Ste filed Critical Vulliez Sa Ste
Publication of EP0251877A1 publication Critical patent/EP0251877A1/fr
Withdrawn legal-status Critical Current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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means

Definitions

  • the present invention generally relates to a process for obtaining food products packaged in a leaktight manner in containers such as trays made of plastic material.
  • Such a method which consists essentially in supporting said container, filling said container with food products, and closing said container in a leaktight manner when it is filled, in particular by heat-sealing or self-sealing a lid or a film of deformable plastic material on the opening edge of said container.
  • the object of the present invention is to solve the aforementioned problems by proposing a method of the type mentioned above which makes it possible to obtain food products packaged in a leaktight manner in containers which can be stacked without the risk of their lid or lid taking off.
  • the solution according to the present invention consists of a process of the type mentioned above, characterized in that it consists in maintaining in a non-deformed state a deformable part of the container, during the filling and closing stages. so as to maintain a substantially constant volume inside the container, and to release, after the sealed closure of said container, the action of maintaining said deformable part so as to create an increase in internal volume of the closed container, resulting from the deformation of said deformable part under the effect of the weight of said food products.
  • a reduction in the internal pressure of the container responsible is obtained, when stacking them, when the cover or lid takes off.
  • the process of the present invention is very particularly advantageous in the case where the container is made of a thermoplastic material excluding polyolefins, and in particular of polystyrene.
  • stress-cracking is observed when the containers are closed by heat sealing, which results in cracks in the container appearing either on its upper rim after a few hours or on its bottom in the thinnest places after a few days.
  • This phenomenon can be interpreted by the combination of three effects, namely the presence of oils or fats, the heating of these during heat sealing, and the resulting increase in pressure inside the container.
  • Another solution is to work under vacuum, but requires a complex and expensive installation.
  • the method according to the invention therefore also makes it possible to solve this particular problem, in a completely advantageous manner, relative to the solutions proposed so far.
  • the invention also relates to an installation for implementing the method which has just been described.
  • This structure constitutes the basic structure of the installation according to the invention, which is characterized in that it further comprises means ensuring the maintenance of a deformable part of the container in an undeformed state, and means of suppression of the action of said means ensuring the maintenance to allow free deformation of said deformable part under the effect of the weight of food products.
  • the means ensuring the maintenance comprise a member maintaining the above-mentioned deformable part in a non-deformed state by direct contact, and of shape combined with that of said deformable part not deformed.
  • the abovementioned removal means comprise in this case means for relative movement of the container relative to the member ensuring the maintenance.
  • the present invention relates to a container intended in particular for the sealed packaging of food products after addition of a cover or film of plastic material, characterized in that it comprises a preformed deformable part, capable of being deformed under the effect of the weight of the food products contained in said container.
  • FIG. 1 there is shown schematically an embodiment of an installation according to the invention, for sealingly closing, by heat-sealing or sticker of a cover or film of plastic material 1 deformable on the edge d opening 2 of a container such as a tray 3 shown in FIG. 2.
  • This tray 3 includes a preformed deformable part 4 capable of being deformed under the effect of the weight of the food products, not shown, contained in the container 3.
  • the machine generally comprises a chassis defining an internal chamber or cavity 5 with a substantially rectangular section open on its upper horizontal face.
  • a cover 6, for example forming a heat-sealing heating plate, is hinged mounted on one side of the chassis so as to close the upper face of the chamber 5 to obtain the sealing of the lid or cover 1 on the container 3.
  • This installation further comprises a member 7 intended to maintain the deformable part 4 of the container 3 in a non-deformed state shown in FIG. 1. This maintenance is ensured by direct contact between the member 7 and the deformable part 4, the member 7 being produced in a form conjugated with that which is not deformed of the deformable part 4.
  • the part 4 is a convex curved wall in the non-deformed state, constituted by the bottom of the container 3.
  • the holding member 7 is an axially displaceable element, such as for example a piston with head 8 in the form of a spherical cap.
  • the holding member 7 can also be fixed, in which case means will be provided allowing the upward movement of the container thus releasing it from the member ensuring the aforementioned holding.
  • the process for obtaining food products in accordance with the present invention consists in placing the container 3 in the cavity 5, so as to support the latter by its edges, then filling the container 3 with food products. The latter is then closed in a sealed manner.
  • the deformable part 4 is maintained using an organ 7 in an undeformed state, so as to maintain a substantially constant volume inside the container 3.
  • the deformable part 4 of convex shape in the non-deformed state is of concave shape after release of the holding action (FIG. 2).
  • the bottom of the container has on its periphery a part forming a continuous groove 9.
  • the deformation of part 4 does not result from the elasticity of the material used but from the conformation specific from the bottom of the container.
  • the container can be made of any thermoplastic material, and as mentioned above the process according to the invention finds particular application when the container is made of polystyrene, since this avoids the phenomenon of "stress-cracking".

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Closing Of Containers (AREA)
  • Closures For Containers (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
EP87401414A 1986-06-23 1987-06-22 Procédé d'obtention de produits alimentaires emballés de façon étanche dans des récipients, installation pour la mise en oeuvre de ce procédé; récipient destiné en particulier à l'emballage étanche de produits alimentaires Withdrawn EP0251877A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8609031A FR2600305B1 (fr) 1986-06-23 1986-06-23 Procede d'obtention de produits alimentaires emballes de facon etanche dans des recipients, installation pour la mise en oeuvre de ce procede: recipient destine en particulier a l'emballage etanche de produits alimentaires
FR8609031 1986-06-23

Publications (1)

Publication Number Publication Date
EP0251877A1 true EP0251877A1 (fr) 1988-01-07

Family

ID=9336578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401414A Withdrawn EP0251877A1 (fr) 1986-06-23 1987-06-22 Procédé d'obtention de produits alimentaires emballés de façon étanche dans des récipients, installation pour la mise en oeuvre de ce procédé; récipient destiné en particulier à l'emballage étanche de produits alimentaires

Country Status (4)

Country Link
EP (1) EP0251877A1 (es)
DE (1) DE251877T1 (es)
ES (1) ES2001736A4 (es)
FR (1) FR2600305B1 (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990007451A1 (en) * 1988-12-29 1990-07-12 Plm Ab A method and an apparatus for producing containers
EP0434764A1 (en) * 1988-09-14 1991-07-03 Kal Kan Foods METHOD FOR FILLING AND HERMETICALLY CLOSING A DEFORMABLE CONTAINER.
US5428943A (en) * 1988-09-14 1995-07-04 Kal Kan Foods, Inc. Method of filling and sealing a deformable container
WO2000020280A1 (en) * 1998-10-01 2000-04-13 Shetland Seafood Specialities Limited Method of packaging perishable material
CN108792076A (zh) * 2018-04-28 2018-11-13 重庆市纭凡食品开发有限责任公司 食品包装装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1335117A (fr) * 1962-07-05 1963-08-16 Proxima Machine pour la fermeture automatique par soudage des emballages constitués par desrécipients en matière plastique
US3342009A (en) * 1962-06-11 1967-09-19 Philip H Allen Method of providing a head space within a filled container
FR2068950A5 (es) * 1969-11-04 1971-09-03 Ursina Franck Ag
CH524504A (de) * 1971-03-19 1972-06-30 Fischer Ag Georg Verfahren und Einrichtung zum Abfüllen und Sterilisieren von Flüssigkeiten in Kunststoff-Flaschen
DE2609525A1 (de) * 1976-03-08 1977-09-15 Pfeiffer Ohler Eisen Theob Behaelter fuer heiss einzufuellendes fluessiges oder pasteuses fuellgut
DE3416837A1 (de) * 1984-05-07 1985-11-07 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum herstellen einer mit fluessigkeit gefuellten, halbsteifen verpackung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124959A (en) * 1936-08-08 1938-07-26 Vogel William Martin Method of filling and closing cans
US3103089A (en) * 1961-01-23 1963-09-10 Lever Brothers Ltd Method of filling containers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342009A (en) * 1962-06-11 1967-09-19 Philip H Allen Method of providing a head space within a filled container
FR1335117A (fr) * 1962-07-05 1963-08-16 Proxima Machine pour la fermeture automatique par soudage des emballages constitués par desrécipients en matière plastique
FR2068950A5 (es) * 1969-11-04 1971-09-03 Ursina Franck Ag
CH524504A (de) * 1971-03-19 1972-06-30 Fischer Ag Georg Verfahren und Einrichtung zum Abfüllen und Sterilisieren von Flüssigkeiten in Kunststoff-Flaschen
DE2609525A1 (de) * 1976-03-08 1977-09-15 Pfeiffer Ohler Eisen Theob Behaelter fuer heiss einzufuellendes fluessiges oder pasteuses fuellgut
DE3416837A1 (de) * 1984-05-07 1985-11-07 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum herstellen einer mit fluessigkeit gefuellten, halbsteifen verpackung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434764A1 (en) * 1988-09-14 1991-07-03 Kal Kan Foods METHOD FOR FILLING AND HERMETICALLY CLOSING A DEFORMABLE CONTAINER.
EP0434764A4 (en) * 1988-09-14 1991-08-28 Kal Kan Foods, Inc. Method of filling and sealing a deformable container
US5428943A (en) * 1988-09-14 1995-07-04 Kal Kan Foods, Inc. Method of filling and sealing a deformable container
US5555705A (en) * 1988-09-14 1996-09-17 Kal Kan Foods, Inc. Method of filling and sealing a deformable container
WO1990007451A1 (en) * 1988-12-29 1990-07-12 Plm Ab A method and an apparatus for producing containers
WO2000020280A1 (en) * 1998-10-01 2000-04-13 Shetland Seafood Specialities Limited Method of packaging perishable material
CN108792076A (zh) * 2018-04-28 2018-11-13 重庆市纭凡食品开发有限责任公司 食品包装装置

Also Published As

Publication number Publication date
DE251877T1 (de) 1988-05-19
FR2600305A1 (fr) 1987-12-24
FR2600305B1 (fr) 1989-06-30
ES2001736A4 (es) 1988-06-16

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