EP1108651B1 - Emballage en carton ondulé pour produits alimentaires, notamment pour des gâteaux - Google Patents

Emballage en carton ondulé pour produits alimentaires, notamment pour des gâteaux Download PDF

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Publication number
EP1108651B1
EP1108651B1 EP00126148A EP00126148A EP1108651B1 EP 1108651 B1 EP1108651 B1 EP 1108651B1 EP 00126148 A EP00126148 A EP 00126148A EP 00126148 A EP00126148 A EP 00126148A EP 1108651 B1 EP1108651 B1 EP 1108651B1
Authority
EP
European Patent Office
Prior art keywords
container
bottom wall
cavity
side wall
corrugated sheet
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 - Lifetime
Application number
EP00126148A
Other languages
German (de)
English (en)
Other versions
EP1108651A2 (fr
EP1108651A3 (fr
Inventor
Gianmario Anghileri
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.)
Novacart SpA
Original Assignee
Novacart SpA
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Filing date
Publication date
Application filed by Novacart SpA filed Critical Novacart SpA
Publication of EP1108651A2 publication Critical patent/EP1108651A2/fr
Publication of EP1108651A3 publication Critical patent/EP1108651A3/fr
Application granted granted Critical
Publication of EP1108651B1 publication Critical patent/EP1108651B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D3/00Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D3/00Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/10Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/36Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for bakery products, e.g. biscuits

Definitions

  • the present invention relates to a container of corrugated sheet material for foodstuffs, in particular cakes and similar confectionery products, of the type comprising a bottom wall and a side wall manufactured separately of said bottom wall, wherein said side and bottom walls are made integral with each other and adapted to form a cavity having an opening facing upwardly in the normal use condition of the container itself.
  • containers of corrugated paper material for foodstuffs are usually made of two parts, ie. a bottom wall and a side wall integral with each other at their edge regions where they are glued together. These walls form a cavity having an opening facing upwardly in the normal use condition of the container itself, which is adapted to house the dough during the baking step, and the finished product when baking is over.
  • the preamble of claims 1 and 9 is based on this prior art.
  • the side wall is defined by a single portion of corrugated paper material, suitably shaped and closed to form a ring by overlapping and gluing of the end flaps in order to obtain a truncated-cone conformation, so that the container slightly flares to promote its superposition on other containers thereby forming stacked packs of reduced bulkiness.
  • the container is adapted to contain hot liquids and comprises a corrugated sheet material which extends substantially circumferentially around the side wall of the inner container and which is covered by a second outer sheet laminate of thin flexible paper material presenting substantially smooth outer surface for engagement by the hand of a user of the container.
  • the container according to US patent has a bottom wall and a side wall manufactured separately of said bottom wall; said side and bottom walls are made integral with each other and form a cavity having an opening facing upwardly in the normal use condition of the container itself.
  • the side wall has a border band overturned outwardly of said cavity and delimited by an annular fold of the sheet material defining said opening contour of the cavity.
  • the container comprises a bottom wall and a side wall manufactured separately of said bottom wall; the side and bottom walls are made integral with each other and are adapted to form a cavity having an opening facing upwardly in the normal use condition of the container itself; at the contour of the opening, the side wall has a border band overturned outwardly of said cavity and delimited by an annular fold of the sheet material defining said opening contour of the cavity.
  • the upper edge of the container is a sharp edge that may sometimes cut or penetrate and is therefore dangerous during handling of the container itself.
  • the paper material consists of coupling of two or more layers, partial separations between these layers may occur, and therefore frayed regions may appear at the upper edge of the container where emerging of the cutting and trimming lines of the different layers may cause the latter to open out.
  • the technical task underlying the present invention is to devise a container of corrugated paper material for foodstuffs capable of substantially obviating the mentioned drawbacks.
  • Another important aim of the invention is to devise a container of corrugated paper material provided with a rounded edge, which is not therefore sharp at its opening.
  • a further aim of the invention is to devise a container of corrugated paper material that, where formed of two or more layers, is not subject to possible fraying at the edge of its opening, as a result of separation between the layers themselves.
  • a still further aim of the invention is to provide a container the shape of which is adapted to enable folding and bending actions thereon, as well as greater resistance to deformations.
  • a further important aim of the invention is to make the upper edge of the food container stronger by providing it with greater structural stiffness and reducing the risks of breaking of its side wall due to tearing.
  • a container of paper material for foodstuffs, in particular cakes and similar confectionery products which is characterized in that said side wall at the opening contour has a border band overturned preferably outwardly of said cavity and delimited by an annular fold of the sheet material defining said contour of the cavity opening.
  • It comprises a bottom wall 2 and a side wall 3 separated from each other and each defined by a shaped portion of corrugated sheet material, said walls being made mutually integral by gluing at a peripheral region 2a of the former and a bent edge region 3a of the latter.
  • a first portion intended to define the bottom wall 2 is provided to be cut from a substantially flat support of corrugated paper material (as shown in Fig. 4, for example).
  • a first and widespread typology of paper containers for confectionery products involves use of a bottom wall of circular shape, as shown in Fig. 1.
  • a bottom wall of circular shape as shown in Fig. 1.
  • different container shapes adapted to the type of cake to be prepared may be provided.
  • a second flat portion which is separated from the preceding one and will be used to constitute the container side wall 3.
  • This second portion will preferably consist of a strip of sheet material to be suitably bent so that its edge region 3a will be ready for gluing to the peripheral region 2a of the bottom wall 2; this portion will then be closed to form a ring around the bottom wall.
  • the container consists of at least two separate portions (a base and a side wall). This enables a side wall 3 made up of the desired amount of material to be obtained.
  • the side wall 3 will not have material in excess, swellings, folds or corrugations in addition to those already present in the strip designed to define it and the container thus obtained will therefore be much stiffer and stronger than the paper containers made through subsequent bendings starting from a single sheet.
  • the bent edge region 3a will be defined by a plurality of tabs 11 separated by a cut 12. During the engagement step with the bottom, these tabs 11 partly overlap one another thereby avoiding deformations due to excess material at this region.
  • a weakening line 13 intended to facilitate bending of the side wall 3 is also present; therefore the side wall 3 in an assembled condition will have a portion 3a parallel to bottom 2 and a portion substantially perpendicular to the latter or at most slightly flared outwardly of cavity 4.
  • Fig. 4 Also identified in Fig. 4 is an ideal folding line 14 around which the upper edge of the side wall 3 will be overturned. This overturning operation can take place by overturning of the border band 6 either when the side wall 2 is in a flat condition (Fig. 4), or before assembling with the bottom wall 2 and also possibly simultaneously with dampening of the folding region; alternatively folding will follow assembling after dampening of the region itself.
  • the side wall 3 is closed to form a ring by overlapping and gluing of the end flaps 3b that therefore will constitute a section of greater stiffness than all the remaining part of the side wall 3 itself.
  • the side wall 3 and bottom wall 2 form a cavity 4 having an opening facing upwardly in the normal use condition of the container.
  • the side wall 3 at the contour of opening 5 has a border band 6 overturned outwardly of cavity 4 and delimited by an annular fold 7 of the paper material defining said contour of opening 5.
  • the paper material of the side wall 3 comprises at least one face crossed by corrugations 8 having a major extension direction which is not oriented vertically as in common containers.
  • corrugations 8 have an inclination to the horizontal (or bottom plane 3) of an angle ⁇ not greater than 45°, more preferably this inclination will be in a range included between 10° and 15° and most preferably the major extension direction will be oriented substantially parallel to the bottom wall 2 and therefore also to the annular fold 7 delimiting the border band 6.
  • the annular fold 7 is practically executed mainly at the grooves of corrugations 8 disposed at the contour of opening 5 so that achievement of said annular fold is facilitated due to the greater flexibility offered by the paper material at said grooves.
  • the strip that will define the side wall will be suitably cut from the corrugated material so as to follow the rib course.
  • the corrugation extension in the finished product will be slightly inclined and this deviation from the horizontal will be more apparent at the region where the strip edges are jointed together on the side wall because at this point the two inclinations are in opposition to each other.
  • orientation of the paper material corrugations in a direction substantially parallel to the bottom wall not only efficiently counteracts the tendential increase in the container flaring due to expansion of the dough during baking (because it brings to formation of a plurality of stiff annular ribs), but it also enables breaking of the paper material to be avoided, which on the contrary would occur if said corrugations were disposed transversely of the bottom wall, i.e. in a substantially vertical direction in the normal use condition of the container.
  • the annular fold 7 would cross the corrugation ridges at right angles where the material elasticity is obviously to a minimum degree and therefore cracking and tearing formations are very likely to occur.
  • the corrugated paper material consists of a smooth sheet 9 adapted to come into direct contact with the foodstuff and facing the inside of cavity 4, and a corrugated sheet 10 that obviously will define the outer surface of the container.
  • the annular fold 7 forms a rounded edge covered with the smooth sheet 9.
  • both sheets 9, 10 are adapted to withstand the baking temperatures required for the different types of foods.
  • the border band 6 has an extension surface disposed parallel to the side wall 3, so that penetration of the border corrugations into the grooves present in the side wall 3 and due to the corrugations themselves is possible at least partly.
  • the invention achieves important advantages.
  • border band 6 and annular fold 7 delimiting it constitute a perimetric collar greatly stiffening the upper part of the side wall 3 and reducing to a minimum the structural discontinuity effect caused by the presence, along the annular extension of the side wall itself, of the region of greater thickness wherein the end flaps 3b overlap one another and come into engagement.
  • the container in accordance with the invention therefore does not tend to become deformed during baking of the foodstuff contained therein and said foodstuff, when cooking is over, is shaped evenly without protuberances or irregular swellings.
  • the opening contour of the container is formed of the annular fold of the paper material and is therefore of rounded conformation, without sharp edges.
  • the cutting and trimming lines of said sheets are disposed at the end of the border portion folded back outwardly and downwardly and not at the opening contour of the container; possible partial separations or fraying between the sheets therefore would stop at the annular fold delimiting said border portion and could not go on in the cavity of the container itself.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Frangible Articles (AREA)
  • Cartons (AREA)
  • Package Specialized In Special Use (AREA)
  • Wrappers (AREA)

Claims (10)

  1. Emballage en carton ondulé pour la cuisson au four de produits alimentaires, notamment pour des gâteaux et produits de pâtisserie similaires, du type comprenant une paroi de fond (2) et une paroi latérale (3) fabriquée séparée de ladite paroi de fond (2), lesdites paroi de fond et paroi latérale (2 et 3) étant réalisées solidaires entre elles et étant destinées à former une cavité (4) ayant une ouverture (5) tournée vers le haut dans une normale condition d'utilisation du récipient ou emballage, ledit carton ondulé se composant de matière en papier sous forme de feuille propre à contenir et à cuire des aliments, caractérisé en ce que ladite paroi latérale (3) sur le pourtour de l'ouverture (5) a une bande de rebord (6) renversée de préférence vers l'extérieur de ladite cavité (4) et délimitée par un pli annulaire (7) de la matière en feuille définissant ledit pourtour de l'ouverture de la cavité (4), ladite feuille de carton ondulé (10) définissant la surface extérieure de ladite cavité (4), ladite surface extérieure étant traversée par des ondulations (8) ayant une direction d'extension majeure orientée selon une inclinaison par rapport à la paroi de fond (2) d'un angle (α) plus petit que 45°.
  2. Emballage selon la revendication 1, caractérisé en ce que lesdites ondulations (8) ont une direction d'extension majeure selon une inclinaison par rapport à la paroi de fond (2) d'un angle (α) plus petit que 10-15° et de préférence orientée sensiblement parallèle à ladite paroi de fond (2) et audit pli annulaire (7) délimitant la bande de rebord (6).
  3. Emballage selon la revendication 2, caractérisé en ce que ledit pli annulaire (7) délimitant ladite bande de rebord (6) s'étend principalement en correspondance avec les rainures des ondulations (8) de la matière en feuille disposées sur ledit pourtour de l'ouverture (5) de la cavité.
  4. Emballage selon la revendication 1, caractérisé en ce que ladite matière en feuille ondulée se compose de l'accouplement d'au moins une feuille lisse (9) et d'une feuille ondulée (10), de préférence destinées à résister aux températures de cuisson.
  5. Emballage selon la revendication 4, caractérisé en ce que ladite feuille ondulée (10) définit la surface extérieure de ladite cavité (4) et en ce que ledit pli annulaire (7) forme un bord arrondi couvert de ladite feuille lisse (9).
  6. Emballage selon la revendication 1, caractérisé en ce que ladite bande de rebord (6) a une surface d'extension disposée parallèle à ladite paroi latérale (3).
  7. Emballage selon la revendication 1, caractérisé en ce que la paroi latérale (3) a une zone de bord pliée (3a) liée, de préférence collée, à la périphérie (2a) de la paroi de fond (2).
  8. Emballage selon la revendication 7, caractérisée en ce que ladite zone de bord pliée (3a) a un nombre prédéterminé de languettes (11) séparées les unes des autres par des entailles (12) et destinées à se superposer du moins partiellement en conditions d'assemblage de la paroi latérale (3) à la paroi de fond (2).
  9. Procédé de fabrication d'emballages pour la cuisson au four de produits alimentaires, notamment pour des gâteaux et produits de pâtisserie similaires, du type suivant la revendication 1, comprenant les étapes suivantes:
    préparation d'une matière en feuille ondulée d'extension sensiblement plate,
    découpage d'une première portion de ladite matière de manière à définir une paroi de fond (2) du récipient,
    découpage d'une deuxième portion de ladite matière de manière à définir une paroi latérale (3) du récipient séparée de ladite paroi de fond (2),
    association solidaire et réciproque de la paroi de fond (2) et de la paroi latérale (3) de manière à former une cavité (4) ayant une ouverture (5) tournée vers le haut dans la condition normale d'utilisation du récipient, caractérisé en ce que la feuille ondulée définit la surface extérieure de la cavité, les ondulations (8) ont une direction d'extension majeure orientée selon une inclinaison par rapport à la paroi de fond (2) d'un angle (α) plus petit que 45°, et par une étape supplémentaire de pliage d'une bande de rebord (6) de préférence vers l'extérieur de ladite cavité (4), la bande de rebord (6) étant délimitée par un pli annulaire (7) de la matière en feuille définissant ledit pourtour de l'ouverture de la cavité (4).
  10. Procédé selon la revendication 9, caractérisé en ce que ladite étape de pliage de la bande de rebord a lieu avant l'étape d'association entre la paroi de fond (2) et la paroi latérale (39 ou après l'étape d'association lors du trempage de la bande de rebord (6)
EP00126148A 1999-12-14 2000-11-30 Emballage en carton ondulé pour produits alimentaires, notamment pour des gâteaux Expired - Lifetime EP1108651B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI992582 1999-12-14
IT1999MI002582A IT1314277B1 (it) 1999-12-14 1999-12-14 Contenitore in materiale in foglio ondulato per prodotti alimentarti,in particolare per torte e simili prodotti dolciari.

Publications (3)

Publication Number Publication Date
EP1108651A2 EP1108651A2 (fr) 2001-06-20
EP1108651A3 EP1108651A3 (fr) 2002-11-27
EP1108651B1 true EP1108651B1 (fr) 2004-09-22

Family

ID=11384101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126148A Expired - Lifetime EP1108651B1 (fr) 1999-12-14 2000-11-30 Emballage en carton ondulé pour produits alimentaires, notamment pour des gâteaux

Country Status (5)

Country Link
EP (1) EP1108651B1 (fr)
AT (1) ATE276925T1 (fr)
DE (1) DE60014014T2 (fr)
ES (1) ES2228386T3 (fr)
IT (1) IT1314277B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20110326A1 (it) * 2011-03-02 2012-09-03 Novacart Spa Contenitore in materiale cartaceo, in particolare stampo di cottura, e procedimento per la sua realizzazione

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4987479U (fr) * 1972-11-15 1974-07-29
US5205473A (en) * 1992-03-19 1993-04-27 Design By Us Company Recyclable corrugated beverage container and holder
US5839653A (en) * 1996-07-12 1998-11-24 Zadravetz; Robert B. Container with corrugated wall
US5775577A (en) * 1996-10-15 1998-07-07 Baldocci, Modena, Scherrer, Stanghellini Family Trust, And Titus Disposable insulated container with microflute structure
GB9715896D0 (en) * 1997-07-28 1997-10-01 Sca Packaging Ltd Containers

Also Published As

Publication number Publication date
EP1108651A2 (fr) 2001-06-20
ES2228386T3 (es) 2005-04-16
DE60014014T2 (de) 2005-10-06
ITMI992582A0 (it) 1999-12-14
DE60014014D1 (de) 2004-10-28
ITMI992582A1 (it) 2001-06-14
IT1314277B1 (it) 2002-12-06
EP1108651A3 (fr) 2002-11-27
ATE276925T1 (de) 2004-10-15

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