EP4108584A1 - Verpackung mit einteiligem siegelrand, die aus zwei sich überlappenden zuschnitten hergestellt wird - Google Patents

Verpackung mit einteiligem siegelrand, die aus zwei sich überlappenden zuschnitten hergestellt wird Download PDF

Info

Publication number
EP4108584A1
EP4108584A1 EP22179467.0A EP22179467A EP4108584A1 EP 4108584 A1 EP4108584 A1 EP 4108584A1 EP 22179467 A EP22179467 A EP 22179467A EP 4108584 A1 EP4108584 A1 EP 4108584A1
Authority
EP
European Patent Office
Prior art keywords
packaging
rim
blank
food products
strip
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.)
Pending
Application number
EP22179467.0A
Other languages
English (en)
French (fr)
Inventor
Franck BOURNAUD
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.)
Groupe Guillin SA
Original Assignee
Groupe Guillin SA
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 Groupe Guillin SA filed Critical Groupe Guillin SA
Publication of EP4108584A1 publication Critical patent/EP4108584A1/de
Pending legal-status Critical Current

Links

Images

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
    • B65D5/32—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 having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
    • B65D5/321—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 having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding up portions of a single blank connected to a central panel from all sides
    • 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
    • B65D5/563—Laminated linings; Coatings

Definitions

  • the present invention relates to a new packaging for the packaging and conservation mainly of food products, and therefore comprises a container offering an interior space or volume delimited by a bottom and a peripheral wall, and which can, if necessary, be sealed by a film. plastic closure or any other bio-sourced material sealed at the free edge of the peripheral wall and preserving the food contained in the packaging.
  • the packaging of the invention is mainly made of cardboard, therefore falling within the environmental logic recommended today, which tends to replace plastic containers with cardboard configurations. It can be sealed by a film coating the inner faces of a cardboard tray forming the container of the receptacle.
  • the sealing provided by the film makes it possible to use the packaging for a wide range of foodstuffs requiring storage protected from the ambient air, in particular if they are subsequently sealed.
  • the packaging can be used to contain fruits and vegetables, including with a lid which is itself perforated.
  • Such cardboard packaging coated with an inner plastic film has been well known for a long time, such as for example those described in the patent FR 2 975 973 , which focuses in particular on another problem related to this packaging: when sealing the container with a plastic seal closing the container, ensuring a tight connection between the flat edges that such a method of closing requires and the seal .
  • Sealed packaging in fact requires first of all the existence of a peripheral rim extending the wall of the container outwards to allow and support sealing, a rim which must then be flat, failing which airtightness, when it is required , cannot be assured.
  • the cardboard blank used to shape the tray in volume comprises a pan forming the bottom and tabs extending on the different sides of the bottom, each being sized to form one side of the peripheral wall and one side of the rim.
  • the edges of said tabs are supposed to come into contact edge to edge with those of the contiguous tongue, so that the walls and the edges are correctly butted when laminating the plastic film on the cardboard, which gives the tray its final shape with a peripheral wall and rim that surround the entire container.
  • the film which adheres to the cardboard sections forming the sides and the edges of the container therefore also has a function of maintaining the volume cohesion of the container.
  • the sealing can be carried out on a support (the complete peripheral edge) whose flatness is assumed to be continuous all around the circumference of the packaging, guaranteeing a good hermeticity to the container thus closed.
  • a support the complete peripheral edge
  • the initial flat cardboard blank benefits from very precise cutouts of the different tabs, in particular in their parts forming the different sides of the rim.
  • the flatness is no longer ensured and it becomes difficult to achieve a correct seal during sealing.
  • the initial cutting of the flat blank provides areas which, at the time of three-dimensional assembly, overlap.
  • the overlapping zones are also sometimes the subject of specific gluing with the aim of reinforcing the solidity of the tray, before the possible laying of the film coating the inner faces of the peripheral wall and the upper faces of the rim.
  • the overlapping zones affect said peripheral rim, the latter has extra thicknesses often localized at the level of the corners of the package.
  • the lidding takes place on an edge which is not flat, but which on the contrary offers areas for sealing the lid distributed over two levels.
  • the pressure exerted at the time of sealing is therefore not uniform, it is obviously greater at the places where there are two thicknesses.
  • the resulting seal is potentially less effective, in terms of sealing, particularly at the level of the steps separating the zones with two superimposed thicknesses from those which have only one thickness.
  • the three-dimensional forming of the initially flat, pre-creased, pre-cut and folded blank with a view to its volume deployment is complex and requires specific machines to be inserted into the automated manufacturing lines. such packaging and packaging of products that slow down production rates.
  • the present invention overcomes these problems and limitations, by proposing an innovative solution which not only guarantees the uniformity of the thickness of the sealing surface of the lid over the entire peripheral rim of the packaging, but also its flatness and its perfect continuity all around.
  • the packaging for packaging food products of the invention conventionally comprising a cardboard container comprising a bottom, a peripheral wall and a peripheral rim
  • the cardboard container is made from two blanks pre-grooved and pre-cut planes, a first blank comprising, on the one hand, the entire peripheral rim consisting of a single piece in the blank and, on the other hand, a continuous or discontinuous peripheral inner band extending the rim inwards, the band and the rim being separated by a folding crease, and a second blank comprising the bottom and the peripheral wall.
  • the container is only made of cardboard, it is made from two cardboard blanks directly connected to each other and which ensure the mechanical strength of the container.
  • the structure is therefore very different from that which is disclosed in the documents JP 2001 233324 , JP 2001 096644 and JP 2001 287729 in the name of DAINIPPON PRINTING CO LTD, which indeed describe a container based on two blanks, which are however connected to one another via portions which overlap and which are constantly referred to as “polymerized parts”.
  • one side of the container can then be coated with a plastic film or any other bio-sourced material.
  • the two blanks can be fixed to one another at the level of the inner band of the first blank, the peripheral wall falling under the second blank being placed inside said band.
  • the face of the peripheral wall on which the film is applied is flat, which facilitates the coating operation.
  • peripheral rim being in one piece, in other words made up of a single piece in the first blank, without division, it is therefore also completely flat and has no relief, neither positive nor negative, which could weaken or interrupt the sealing bond at the time of lidding.
  • This solution without folds or joints on the edge guarantees an airtight seal which results from a completely controlled flatness.
  • the tightness thus ensured allows the use of these packagings including for packaging fresh and semi-fresh foods, which must be able to be kept for several days in a controlled atmosphere and which is not altered by gas exchanges with the outside. .
  • the two blanks can be fixed to each other by gluing.
  • Glue dots are for example distributed over the faces of the inner strip intended to be in contact with the wall elements falling under the second blank.
  • the first blank comprising the peripheral rim may have a thickness greater than the thickness of the second blank.
  • the objective is to increase the mechanical strength of the rim, which is particularly exposed insofar as many manipulations of the packaging, sometimes quite heavily filled, are done in practice via the peripheral rim.
  • the container of the invention is provided polyhedral, the first blank then comprising an outer polygonal strip provided to form the rim and, for each side of the polygon of the rim, at least one portion of inner strip, said strip or said inner strip portions extending over the major part of said side.
  • the container has flat sides separated by edges at the places where the edges of said sides meet.
  • the abutment zones concern only the peripheral wall of the container itself, and have no extension in the rim, which is in one piece and continuous according to the essential characteristic of the invention.
  • the inner strip portion may preferably run over the entire interior length of said side of the rim, the strip portions attached to each side of the rim being abutted in the first blank at both strip portions connected to adjacent sides of said rim.
  • the rim and the strip extending it inside together constitute a wider strip, of preferably substantially uniform width, and separated by a crease which constitutes a fold line.
  • the inner strip has diagonal cutouts separating the portions of strips falling on each side of the rim, allowing folding.
  • the second blank can then present on the one hand a polygonal face forming the bottom of the container, homothetic to the layout of the polygon consisting of the creasing constituting the edge connecting the edge and the band interior, and on the other hand sections forming the sides of the peripheral wall.
  • the sides of the peripheral wall can for example be rectangular, for a prismatic container shape, or trapezoidal, if the container takes the shape of a truncated pyramid.
  • the outer corners of the rim are preferably provided rounded for both practical and aesthetic reasons.
  • the blanks can be provided in flat cardboard or micro-fluted cardboard, recyclable materials and therefore particularly sought after in current packaging.
  • the peripheral walls and/or the bottom of the blank can be perforated to allow ventilation of the products.
  • Said peripheral walls and the bottom of the blank can also comprise at least one printable surface, so as to be able to personalize them.
  • a perforated cardboard in the configuration coated with an interior film and, in this case, the product contained in the packaging is visible through the film.
  • the cardboard container of the invention is produced by means of two flat cardboard blanks 1, 2 pre-cut and pre-scored in order to constitute a single volume container as shown in figures 3 and 4 .
  • the blank 1 incorporates the flange 10, drawn in one piece and, in the configuration shown, a continuous inner strip 100 which extends said flange 10 inwards.
  • the blank 2 comprises the bottom 20 and four trapezoidal side panels 21, 22, 23, 24 so that on assembly, the volume of the container is a polyhedron of the truncated pyramid type with four sides.
  • the blank 1 is in fact presented as a frame with four sides, the four sides 11, 12, 13, 14 of the flange 10 developing parallel to four portions 101, 102, 103, 104 of the inner band 100, from which they are separated by creases 15, 16, 17, 18 constituting fold lines and the inner edge of rim 10. Cutouts diagonals 105, 106, 107, 108 are made at the corners, notching only the strip 100 and allowing the portions 101, 102, 103, 104 of said strip 100 to be abutted at these locations.
  • the sides 21, 22 of the blank 2 are of equal dimensions, as are the sides 23, 24. They are separated from the pan forming the bottom 20 by grooves 25, 26, 27, 28 forming fold lines making it possible to conform tri - dimensionally the container.
  • the dimensions between said grooved fold lines 25, 26, 27, 28 and the free edges 31, 32, 33, 34 are not necessarily equal for the two pairs of sides 21, 22 on the one hand and 23, 24 on the other hand. on the other hand, even if they are close in the configuration shown in the figures. They actually depend on the inclinations of said sides 21, 22, 23, 24, which are not necessarily equal either, which themselves depend on the shape and positioning of the bottom 20.
  • the volume possibilities are virtually infinite.
  • each grooved folding line 25, 26, 27, 28 and its corresponding free edge 31, 32, 33, 34 corresponds to the depth of the container. It should be noted that as all the peripheral sections 21, 22, 23, 24 belong to the same blank 2, the dimension between said grooved folding lines 25, 26, 27, 28 and respectively their corresponding free edges 31, 32, 33, 34 can take on a large number of values, including high values, subject to the nature and mechanical strength of the cardboard, and of course the actual needs in terms of packaging volume.
  • the two blanks 1, 2 have, in the configuration shown, a double symmetry with respect to two central axes respectively longitudinal and transverse, that is to say a symmetry with respect to a central point, which can be seen as a very special case of geometry which can obviously include many non-symmetrical variants.
  • the actual depth of the container is obviously less than that which a straight prismatic configuration would have.
  • the interior volume of the container is totally closed by the panels 21, 22, 23, 24 forming the sides of the peripheral wall of the packaging.
  • the free edges 31, 32, 33, 34 of the sides 21, 22, 23, 24 have a length which corresponds to the length of the creases 15, 16, 17, 18 forming the fold line between the sides 11, 12, 13 , 14 of the rim 10 and the portions 101, 102, 103, 104 of the inner strip 100.
  • the side edges of the panels 21, 22, 23, 24 are butted, so that the entire internal volume of the packaging is enclosed in the side walls during the final assembly in three dimensions which appears in these figures, when the parts high proximal edges of the free edges 31, 32, 33, 34 of the sections 21, 22, 23, 24 of the blank 2 are glued to the peripheral portions 101, 102, 103, 104 of the inner band 100 of the blank 1.
  • glue dots 200 visible in figure 2 are placed on the portions 101, 102, 103, 104 of the inner strip 100.
  • these dots of glue are arranged at regular intervals inside said portions 101, 102, 103, 104, so that the bonding takes place outside the sections 21, 22, 23, 24, as it appears in the figures 3 and 4 .
  • internal filming is also carried out, when the three-dimensionally shaped blanks 1 and 2 are glued to each other.
  • This filming has the effect of coating the inner face of the container with a layer of plastic or other adherent biosourced material which reinforces the volume cohesion of the container and also gives it a more airtight character.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
EP22179467.0A 2021-06-22 2022-06-16 Verpackung mit einteiligem siegelrand, die aus zwei sich überlappenden zuschnitten hergestellt wird Pending EP4108584A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2106618A FR3124172B1 (fr) 2021-06-22 2021-06-22 Emballage à rebord de scellage d’un seul tenant réalisé à partir de deux flans se chevauchant

Publications (1)

Publication Number Publication Date
EP4108584A1 true EP4108584A1 (de) 2022-12-28

Family

ID=76807895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22179467.0A Pending EP4108584A1 (de) 2021-06-22 2022-06-16 Verpackung mit einteiligem siegelrand, die aus zwei sich überlappenden zuschnitten hergestellt wird

Country Status (2)

Country Link
EP (1) EP4108584A1 (de)
FR (1) FR3124172B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001096644A (ja) 1999-09-29 2001-04-10 Dainippon Printing Co Ltd 紙製容器の製造方法
JP2001233324A (ja) 2000-02-22 2001-08-28 Dainippon Printing Co Ltd 紙製容器
JP2001287729A (ja) 2000-04-06 2001-10-16 Dainippon Printing Co Ltd 紙製容器
FR2975973A1 (fr) 2011-05-30 2012-12-07 Formkraft Procede de fabrication d'une barquette etanche en carton pour la realisation d'un emballage permettant le conditionnement de produits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001096644A (ja) 1999-09-29 2001-04-10 Dainippon Printing Co Ltd 紙製容器の製造方法
JP2001233324A (ja) 2000-02-22 2001-08-28 Dainippon Printing Co Ltd 紙製容器
JP2001287729A (ja) 2000-04-06 2001-10-16 Dainippon Printing Co Ltd 紙製容器
FR2975973A1 (fr) 2011-05-30 2012-12-07 Formkraft Procede de fabrication d'une barquette etanche en carton pour la realisation d'un emballage permettant le conditionnement de produits

Also Published As

Publication number Publication date
FR3124172B1 (fr) 2023-12-01
FR3124172A1 (fr) 2022-12-23

Similar Documents

Publication Publication Date Title
EP2872409B1 (de) Kastenförmige verpackung aus zwei materialien zum verpacken eines produktes, und herstellungsverfahren
EP0052021B1 (de) Kartonbehälter mit Kunststoffauskleidung und mit einem einstückigen Umfangsrahmen und Verfahren zu seiner Herstellung
EP1214254B1 (de) Verstärkte verpackung für flüssige produkte
EP0010088B1 (de) Kartonbehälter mit Kunststoffilmkaschierung bestehend aus mindestens zwei Abteilen
EP0007944B1 (de) Verfahren zur herstellung einer, mit einem undurchlässigen blatt bezogenen, verpackung und zuschnitt zur durchführung dieses verfahrens
EP4108584A1 (de) Verpackung mit einteiligem siegelrand, die aus zwei sich überlappenden zuschnitten hergestellt wird
BE1028605B1 (fr) Récipient pour produits alimentaires
EP4108585A1 (de) Einteilige verpackung mit siegelrand, die aus zwei nicht überlappenden zuschnitten hergestellt wird
FR2861370A1 (fr) Boite d'emballage pliante, renforcee
FR3132084A1 (fr) Emballage à rebord de scellage d’un seul tenant réalisé à partir d’un flan en carton
EP3459863B1 (de) Kasten zum transport von produkten und verfahren zu dessen herstellung
FR3132699A3 (fr) Emballage à rebord de scellage d’un seul tenant réalisé à partir d’un flan en carton
EP3144236B1 (de) Flachvorläufer für eine verpackung, entsprechendes verfahren und entsprechende verpackung
EP3932822B1 (de) Kunststoffverpackung mit rahmen aus karton oder anderem biobasierten material ohne verklebung
FR2780703A1 (fr) Contenant en un materiau semi-rigide pour le conditionnement d'objets divers et flan pour sa realisation
FR3083781A1 (fr) Boite de transport
FR3135068A1 (fr) emballage en carton operculé par un film en cellulose ou en papier, thermoscellé sur un récipient
FR2685906A1 (fr) Barquette en carton type etanche.
EP4043356A1 (de) Doppelmaterial-verpackung aus kunststoff und karton oder einem anderen biobasierten material mit deckel
FR3133183A1 (fr) Emballage à reliefs de dépilage
FR3014853A1 (fr) Flan et etui hermetique et refermable pour le conditionnement de denrees alimentaires
EP2662298B1 (de) Zwischenvorrichtung für Verpackung
FR2562870A1 (fr) Conditionnement resistant a l'humidite, apte a etre obture de facon etanche par un film de matiere plastique
FR2688200A1 (fr) Boite pliable a enveloppe souple interne a bec verseur refermable.
FR3145555A1 (fr) Emballage comportant un adhésif protégé par un film pelable

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230529

P02 Opt-out of the competence of the unified patent court (upc) corrected

Effective date: 20230530

17P Request for examination filed

Effective date: 20230626

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR