EP1832525B1 - Absorbierender Behälter - Google Patents

Absorbierender Behälter Download PDF

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Publication number
EP1832525B1
EP1832525B1 EP07356032A EP07356032A EP1832525B1 EP 1832525 B1 EP1832525 B1 EP 1832525B1 EP 07356032 A EP07356032 A EP 07356032A EP 07356032 A EP07356032 A EP 07356032A EP 1832525 B1 EP1832525 B1 EP 1832525B1
Authority
EP
European Patent Office
Prior art keywords
cavity
approximately
container according
cavities
container
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.)
Not-in-force
Application number
EP07356032A
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English (en)
French (fr)
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EP1832525A1 (de
Inventor
Hervé Spruytte
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.)
CGL Pack Service SAS
Original Assignee
CGL Pack Service SAS
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Filing date
Publication date
Application filed by CGL Pack Service SAS filed Critical CGL Pack Service SAS
Publication of EP1832525A1 publication Critical patent/EP1832525A1/de
Application granted granted Critical
Publication of EP1832525B1 publication Critical patent/EP1832525B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them

Definitions

  • the present invention relates to a container with liquid retention means for the packaging and sale of food, according to the preamble of claim 1.
  • Containers with liquid retention means are commonly used for the packaging of foods such as meat, and more generally for the packaging of any food likely to let out juice, blood or any other liquid.
  • a first type of liquid retention means container has been made by assembling an absorbent sheet and a container-type container.
  • the tray has at least one main compartment bounded by at least one main bottom wall on which the absorbent sheet is disposed.
  • the absorbent sheet is sometimes attached to the main bottom wall by means of a point of glue.
  • Other containers with liquid retention means comprise at least one main compartment limited by at least one main bottom wall having a plurality of small cavities each having a communication port with the interior of the main compartment and each limited by a wall cavity device and a cavity bottom. The liquids are retained in each cavity of the container by the capillary phenomenon.
  • the dimensions of the cavities disposed in the main bottom wall of the main compartment are small enough to make possible the action of the capillary phenomenon for the retention of liquids in these cavities.
  • the problem proposed by the present invention is to design a container for the packaging and sale of food, which comprises means for retaining liquids that can retain an even larger volume of liquids, and which is easy to manufacture and inexpensive.
  • the presence of the inner protrusion increases the length of the contact line sufficiently to allow a significant and satisfactory increase in the liquid retention effect, without requiring the presence of undercuts.
  • the presence of the remains allows the demolding of the container during its manufacture, without significant deformation of the cavity and especially the outgrowth.
  • the invention aims at optimizing the effect of retention of the liquid in the cavities, to ensure its effective retention in the case where an acceleration such as a flipping of the container, openings of the cavities downwards, or even a simultaneous impact on the container, tends to eject the liquid out of the cavities.
  • the volume of the cavity is such that the product of its depth by its external diameter is equal to or slightly less than about 20 mm 2 , preferably equal to or less than about 15 mm 2 , the external cavity diameter being greater than about 6 mm and less than about 9 mm.
  • the cavity may have a peripheral contour of circular shape. This form is preferable to ensure better liquid retention capacity during shocks in the inverted position of the container.
  • the cavity may have a peripheral contour of polygonal shape.
  • the cavity may advantageously have a peripheral contour of hexagonal shape, which increases the number of cavities per unit area and therefore the volume of liquid retained per unit area.
  • the protuberance may be disposed substantially in the center of the cavity. This distributes more uniformly the retention forces by capillarity, and provides better liquid retention capacity during shocks in the inverted position of the container.
  • the outline of the protrusion may have a shape of the same type as that of the peripheral contour of the cavity. This ensures even more uniform capillary retention throughout the annular volume of the cavity, to optimize the retention capacity of liquids during shocks in the inverted position of the container.
  • the contour of the protrusion can be circular.
  • the tooling of such a container is thus easier to manufacture and less expensive, and it facilitates the demolding of the container during its manufacture.
  • a satisfactory demoulding of the peripheral walls of the cavities of the container during manufacture is obtained by providing that the peripheral walls of the cavities have a clearance angle greater than about 1 °.
  • the main bottom wall of the container may comprise a plurality of cavities disposed closest to each other and staggered. This significantly increases the number of cavities per unit area and therefore the volume of liquids that can be retained per unit area.
  • a container with cavities according to these dimensions has shown a surprisingly high capacity to retain liquids, retaining about 950 milliliters of liquids per square meter of a surface provided with such cavities.
  • the effective retention of liquids thus produced makes it possible to return the surface provided with cavities in order to orient the communication orifices towards the ground, without appreciable flow of liquids out of the cavities.
  • the protrusion may develop beyond the communication orifice inwardly of the main compartment, in excess of at least equal to the maximum exceeding of the free surface of a volume of water filling the cavity.
  • the protrusion can then play a role of effective restraint of the maximum amount of liquid that can be contained in the cavity.
  • the protrusion has an anti-slip effect to prevent lateral sliding of the product contained in the container.
  • the container may comprise spacers developing from the main bottom wall towards the interior of the main compartment to support a product away from the communication orifices.
  • the container may be obtained by molding, thermoforming or injection.
  • the container may be of plastic, preferably polyethylene, polypropylene, polystyrene or polylactic acid.
  • plastics are actually inexpensive, easily recyclable, have good mechanical strength and are compatible with current food standards.
  • polypropylene makes it possible to use the container for freezing or for heat treatment in the microwave oven.
  • polylactic acid makes it possible to produce a container that is easily biodegradable and that respects the environment.
  • the container represented on the figures 1 and 2 comprises a main compartment 1 limited by at least one main bottom wall 2 having a plurality of cavities 3 having a communication port 4 with the interior of the main compartment 1. These cavities 3 are limited by a peripheral wall cavity 5 and by a cavity bottom 6, as seen better on the figure 3 which is a partial sectional view of axis II of the container of figures 1 and 2 .
  • Each of these cavities 3 comprises an outgrowth 7, with a cross-section smaller than the cross-section of the cavity 3, and developing from the cavity bottom 6 in the direction of the communication orifice 4.
  • Each cavity 3 thus defines an annular volume V intended to contain liquid which will be retained by capillarity.
  • the peripheral wall 5 of cavity is generally cylindrical with a draft A in the direction of the communication port 4, which allows the container to be made with inexpensive and robust molding tools, and to ensure proper demolding of the container .
  • the cavity 3 has a peripheral contour 5 of circular shape, the protuberance 7 having a contour also circular.
  • the protuberances 7 are disposed substantially in the center of the cavities 3.
  • each point of the peripheral wall 5 of the cavities 3 is at the same distance d ( figure 5 ) of the contour of the protrusion 7. This ensures a liquid retention by completely uniform capillarity throughout the annular volume V cavities 3.
  • the value of the volume V equal to or slightly less than a maximum value V max such that, when the mass M that fills the cavity is subjected to at an acceleration G tending to extract it from the cavity, the length of connecting line between the free liquid surface and the cavity walls is sufficient for the capillarity force F to be greater than the force MG exerted by the acceleration G on the mass M of liquid. In this way, the liquid remains in the cavity. Beyond this volume, a liquid retention by capillarity is no longer possible. This of course depends on the properties of the liquid to be retained.
  • the cavity may have a shape such that the product of its depth P by its outside diameter D 2 is equal to or less than 20 about 2 mm.
  • the effect obtained is a correct retention of the liquid when the container is held in the inverted position, with the communication port facing downwards.
  • the protrusion 7 In order to optimize the volume V of liquids that can be retained by capillarity per unit area of the main bottom wall 2, it is desirable for the protrusion 7 to have a reduced dimension, that is to say a small diameter D1 in the embodiment of Figures 1 to 5 . This diameter must, however, be large enough to allow proper release of the protrusion during manufacture.
  • the contour of the protrusion 7 is circular, which is advantageous in more ways than one. Indeed, the mold used for thermoforming or molding the container is easier to manufacture. This is all the more important that the protrusion 7 must have a diameter D1 as small as possible.
  • the contour of the protrusion 7 will participate in a balanced manner, along its circumference, to the retention of the liquid by capillarity.
  • the cavities 3 are arranged closest to each other and staggered. This optimizes the number of cavities 3 per unit area, which optimizes the volume of liquids that can be retained per unit area of the bottom of the container.
  • the figure 6 illustrates a cavity 3 according to a second embodiment of the invention.
  • This cavity 3 has a peripheral wall 5 with a square contour, and the protrusion 7 disposed in the center of the cavity 3 also has a contour having a square shape.
  • This embodiment makes it possible to increase the number of cavities 3 per unit area for a container of rectangular shape.
  • the figure 7 illustrates a cavity 3 according to a third embodiment of the invention.
  • the cavity 3 has a peripheral wall 5 with hexagonal shaped contour.
  • the contours of the protuberances 7 have a shape of the same type as that of the peripheral contour of the cavities 3. This makes it possible to ensure the most uniform capillary retention possible throughout the annular volume V of the cavities 3.
  • the height H of the protuberances 7 is substantially equal to the depth P of the cavities 3.
  • the liquid contained in the volume V of the cavities 3 may have a curved surface S that may protrude beyond the communication orifice 4 towards the inside of the main compartment 1, a product resting on the main bottom wall 2 Such a container may then be in contact with the liquid contained in the cavities 3. At the same time, the vertex of the protrusion 7 is below the surface S of liquid, and no longer participates in the retaining effect. liquid by capillarity.
  • spacers 8a and 8b developing from the main bottom wall 2 towards the interior of the main compartment 1 may be provided to support the lower face 9a of the product 9 to the distance from the communication orifices 4 and the convex surface S of the liquid contained in the cavities 3.
  • the product 9 is thus effectively kept away from the liquids retained by capillarity in the cavities 3.
  • the product 9 will thus have less of a tendency to "dribble" when the user takes it out of the container where it was packed.
  • spacers 8a, 8b and 8c there are several types of spacer, namely the spacers 8a, 8b and 8c.
  • the spacers 8a are made on a portion of the main bottom wall 2 disposed between the cavities 3. This avoids, by the presence of the spacers 8a, to reduce the number of cavities 3 per unit area, unlike the spacers 8b and 8c .
  • the spacers 8b and 8c occupy indeed a large portion of the main bottom wall 2 on which it is not possible to provide cavities 3.
  • the protrusion 7 develops beyond the communication port 4 towards the inside of the main compartment 1, the protrusion 7 having a height H greater than the depth P of the cavity 3, with an overrun at least equal to to the maximum exceeding of the surface S of liquid above the contour of the communication port 4.
  • the protrusion 7 still retains its action effective retention of the liquid by capillarity, even when the liquid fills the cavity in occupying the maximum volume delimited by the convex surface S.
  • the use of such excrescences 7 also allows to exert an anti-slip action on the product placed on the main bottom wall 2. It is possible to tilt and orient the container so as to make its content more visible to consumers.
  • the container may thus be arranged with its main bottom wall 2 at an angle with a horizontal plane of installation, without the product slipping (which would substantially degrade its visual appearance) and without the liquid leaving volumes V of cavities 3.
  • a container with cavities 3 having a depth P of approximately 2 mm, with concentric protrusions 7 centered with a circular contour having a diameter at the apex D1 of approximately 2.5, has been easily formed by thermoforming.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Claims (17)

  1. Behälter mit Mitteln zum Zurückhalten von Flüssigkeiten, mit mindestens einem Hauptfach (1), das durch mindestens eine Haupt-Bodenwand (2) begrenzt ist, wobei die Haupt-Bodenwand (2) mindestens einen ringförmigen begrenzten Hohlraum (3) hat, der mit dem Inneren des Hauptfaches (1) über eine Verbindungsöffnung (4) in Verbindung steht und durch eine Umfangswand (5) des Hohlraumes, durch eine Bodenwand (6) des Hohlraumes und durch einen inneren Ansatz (7), der einen kleineren Querschnitt hat als der Querschnitt der Verbindungsöffnung (4) und sich von dem Boden (6) des Hohlraumes in Richtung zur Verbindungsöffnung (4) erstreckt, begrenzt ist, dadurch gekennzeichnet, daß:
    - der Ansatz (7) eine Seitenfläche hat, die eine Formschräge in Richtung zur Verbindungsöffnung (4) aufweist,
    - die Umfangswand (5) des Hohlraumes eine Formschräge in Richtung zur Verbindungsöffnung aufweist.
  2. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß der Hohlraum (3) eine solche Form hat, daß das Produkt aus seiner Tiefe (P) mal seinem Außendurchmesser (D2) gleich oder geringfügig kleiner als ca. 20 mm2 ist, vorzugsweise gleich oder geringfügig kleiner als ca. 15 mm2, wobei der Außendurchmesser (D2) des Hohlraumes größer als ca. 6 mm und kleiner als ca. 9 mm ist.
  3. Behälter nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Hohlraum (3) eine kreisförmige Umfangskontur hat.
  4. Behälter nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Hohlraum (3) eine polygonalförmige Umfangskontur hat.
  5. Behälter nach Anspruch 4, dadurch gekennzeichnet, daß der Hohlraum (3) eine hexagonalförmige Umfangskontur hat.
  6. Behälter nach irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Ansatz (7) im wesentlichen in der Mitte des Hohlraumes (3) angeordnet ist.
  7. Behälter nach irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Kontur des Ansatzes (7) eine Form desselben Typs hat, wie die Umfangskontur des Hohlraumes (3).
  8. Behälter nach irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Kontur des Ansatzes (7) kreisförmig ist.
  9. Behälter nach irgendeinem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Umfangswand (5) des Hohlraumes einen Formschrägungswinkel (A) von größer als ca. 1° hat.
  10. Behälter nach Anspruch 9, dadurch gekennzeichnet, daß die Seitenfläche des Ansatzes (7) einen Formschrägungswinkel (B) von größer als ca. 4° hat.
  11. Behälter nach irgendeinem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Haupt-Bodenwand (2) eine Vielzahl von Hohlräumen (3) hat, die nahe nebeneinander und versetzt angeordnet sind.
  12. Behälter nach irgendeinem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß:
    - die Hohlräume (3) vom Boden (6) bis zur Verbindungsöffnung (4) eine Tiefe (P) aufweisen, die zwischen ca. 2 mm und ca. 4 mm liegt,
    - die Ansätze (7) eine kreisförmige Kontur mit einem Gipfeldurchmesser (D1) aufweisen, der zwischen ca. 1,5 mm und ca. 3 mm liegt,
    - die Hohlräume (3) eine kreisförmige Umfangskontur mit einem Durchmesser (D2) an der Öffnung aufweisen, der zwischen ca. 5 mm und ca. 8 mm liegt.
  13. Behälter nach Anspruch 12, dadurch gekennzeichnet, daß:
    - die Hohlräume (3) ausgehend vom Boden (6) bis zur Verbindungsöffnung (4) eine Tiefe (P) von ca. 2 mm haben,
    - die Ansätze (7) eine kreisförmige Kontur mit einem Gipfeldurchmesser (D1) von ca. 2,5 mm und einen Basisdurchmesser von ca. 3 mm haben,
    - die Hohlräume (3) einen Durchmesser (D2) der Öffnung von ca. 7 mm haben.
  14. Behälter nach irgendeinem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Ansatz (7) sich von der Verbindungsöffnung (4) zum Inneren des Hauptfaches (1) mit einem Überstand erstreckt, der mindestens gleich einem maximalen Überstand der freien Oberfläche eines Volumens von Wasser ist, das den Hohlraum (3) füllt.
  15. Behälter nach irgendeinem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß er Stege (8a, 8b, 8c) aufweist, die sich von der Haupt-Bodenwand (2) zum Inneren des Hauptfaches (1) erstrecken, um ein Produkt (9) fern von den Verbindungsöffnungen (4) zu halten.
  16. Behälter nach irgendeinem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß er durch Formguß, Thermoformung oder Spritzguß hergestellt ist.
  17. Behälter nach irgendeinem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß er aus Kunststoffmaterial ist, vorzugsweise Polyethylen, Polypropylen, Polystyrol oder Polylactid.
EP07356032A 2006-03-06 2007-03-06 Absorbierender Behälter Not-in-force EP1832525B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0650780A FR2898107B1 (fr) 2006-03-06 2006-03-06 Conteneur absorbant

Publications (2)

Publication Number Publication Date
EP1832525A1 EP1832525A1 (de) 2007-09-12
EP1832525B1 true EP1832525B1 (de) 2009-10-07

Family

ID=37075532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07356032A Not-in-force EP1832525B1 (de) 2006-03-06 2007-03-06 Absorbierender Behälter

Country Status (4)

Country Link
EP (1) EP1832525B1 (de)
AT (1) ATE444919T1 (de)
DE (1) DE602007002651D1 (de)
FR (1) FR2898107B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2794424A1 (de) * 2011-12-20 2014-10-29 Nestec S.A. Lebensmittelverpackung
EP3696114B1 (de) * 2014-09-30 2022-04-06 Dampack International BV Lebensmittelverpackungsschale
GR1009083B (el) * 2016-05-12 2017-08-11 Παλαμηδης Ανωνυμη Εταιρεια Ανοξειδωτα Προϊοντα Pal Περιεκτης με πυθμενα τριγωνικων κυψελων
SI3643641T1 (sl) * 2018-10-26 2021-05-31 Esperia S.r.L. Pladenj za živila
GB2590476B (en) * 2019-12-19 2023-02-01 Softform Ltd A method and tool for manufacturing a container from a thermoplastic material
IT202000009187A1 (it) * 2020-04-28 2021-10-28 Coopbox Group S P A Contenitore per alimenti essudanti

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533585A (en) * 1984-05-25 1985-08-06 Mobil Oil Corporation Liquid holding packaging tray
FR2717452B1 (fr) * 1994-03-18 1996-05-24 Saplest Productions Sa Support absorbant pour le conditionnement de produits susceptibles de dégager un liquide et procédé de réalisation d'un tel support.
PL183159B1 (pl) * 1995-07-07 2002-05-31 Convenience Food Sys Bv Sposób wytwarzania opakowań

Also Published As

Publication number Publication date
EP1832525A1 (de) 2007-09-12
FR2898107B1 (fr) 2010-03-12
FR2898107A1 (fr) 2007-09-07
ATE444919T1 (de) 2009-10-15
DE602007002651D1 (de) 2009-11-19

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