EP3936449B1 - Kartonverpackung und verfahren zum zusammensetzen davon - Google Patents

Kartonverpackung und verfahren zum zusammensetzen davon Download PDF

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Publication number
EP3936449B1
EP3936449B1 EP20913774.4A EP20913774A EP3936449B1 EP 3936449 B1 EP3936449 B1 EP 3936449B1 EP 20913774 A EP20913774 A EP 20913774A EP 3936449 B1 EP3936449 B1 EP 3936449B1
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EP
European Patent Office
Prior art keywords
package
walls
elements
cardboard
side walls
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Active
Application number
EP20913774.4A
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English (en)
French (fr)
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EP3936449A1 (de
EP3936449A4 (de
Inventor
Dmitrii Viktorovich SAVELEV
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"dzidipro" LLC
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"dzidipro" LLC
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Publication date
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Publication of EP3936449A1 publication Critical patent/EP3936449A1/de
Publication of EP3936449A4 publication Critical patent/EP3936449A4/de
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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
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/563—Laminated linings; 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
    • B65D5/20—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/22—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form held erect by extensions of one or more sides being doubled-over to enclose extensions of adjacent 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
    • B65D5/20—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/24—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
    • B65D5/244—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the outside of the container body
    • 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
    • B65D5/36—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections
    • 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
    • B65D5/36—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections
    • B65D5/3607—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank
    • B65D5/3635—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank by folding-up portions connected to a central panel from all sides to form a container body
    • 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
    • B65D5/40—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 specially constructed to contain liquids
    • 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
    • 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
    • B65D5/64—Lids
    • B65D5/68—Telescope flanged lids
    • B65D5/685—Telescope flanged lids having an inwardly or upwardly extending tab on the lid side wall cooperating with a tab on, or an opening in, the container side wall

Definitions

  • the essential field of this invention is manufacturing of cardboard packages predominantly for food products or products containing or extracting fats and moisture.
  • the field of this invention is packaging structures, namely packaging structures in a form of containers manufactured by die-cutting a form out of a laminated pulp-and-paper material, formed along the crease lines and glued so that double walls and corner elements with a membrane installed between them for maintaining and enhancing hermetic nature of the entire product are formed.
  • the outer walls are the support of the entire package and are in contact with the surface the package is placed upon.
  • the presented state-of-art products manufactured of pulp-and-paper materials are not hermetic and do not allow to keep food products warm for a long time, which causes problems when using cardboard packages.
  • Patent No. FR2821826 is a square cardboard package manufactured almost entirely of one solid sheet. This package is manufactured by means of folding and has a cover which is a part of the solid package sheet. Disadvantages of this package also include lack of a laminated layer, presence of a cover being an integral part of the entire package and one-layer walls that do not allow conserving heat.
  • JP3199310 for a cardboard package for fruits and vegetables.
  • This package has corner elements and double walls.
  • disadvantages of this package are lack of laminated layer, and slits which do not allow storing food products with increased moisture and fat content hermetically.
  • Container from fibre-based cardboard [ RU2589674C2 , published patent on invention] which is a package comprising a bottom and a sleeve.
  • the sleeve does not form an integral structure with the bottom but is fixed to the latter by means of heat sealing, which ultimately does not imply a single unit and increases time required for assembling
  • Documents TW M509196 U and US 3 078 171 A both disclose examples of hermetic packages for food products, wherein the corners are provided with V-shaped gusseted elements.
  • the packages are provided with inner and outer walls (double wall construction) and the outer of the double wall is increased in size relative to the inner wall and forms the support of the entire package preventing contacts between the bottom and the surface.
  • Leakproof recessed bottom carton disclosed in the prior art [ US 3 078 171 A ] has side panel flaps hingedly connected to the side edges of the outer side panels and forming outer side walls lying superposed on the second pair of inner side panels in overlapping adhered relationship.
  • double thickness side walls give a carton construction, which resists large compression forces, such as would applied on the bottom of a stack of loaded cartons on trays.
  • the integral carton blanks may be set up readily by hand or machinery,
  • the package according to US 3 078 171 A has a design, which is more suitable just for the display of packed food products, paying principal attention to providing a neat appearance. That is, the known package under consideration has a rather limited use in practice.
  • UK patent application GB 2498025 disclosing A container and blank, which container is formed from a folded blank and has a container body formed from wall panels of the blank and at least one flange section at an edge of the container body.
  • the flange section comprises two overlapping flange panels of the blank, wherein said overlapping flange panels are bonded together to maintain the shape of the container body.
  • One of disadvantages of the container according to GB 2498025 is a complexity in manufacturing due to a fact that a blank requires webbing sections to be provided with additional areas of heat sealable film for sandwiching between the overlapping flange panels. As a consequence, in such structures there is a sticking effect, which makes opening of the package troublesome and more than inconvenient in practical use requiring special efforts to be applied in the process of opening.
  • a collapsible tray disclosed in the US patent No. 726205 granted on April 21, 1903 , which tray comprises a bottom, side walls having a liquid-proof material and fastening means secured to said sides to hold the same in a vertical position.
  • a design of the cited tray requires use of staples positioned at each corner inside the package as well as straps secured to the outer surfaces of the side walls at each corner to keep the side walls in a vertical position, which staples are adapted to engage buttons extending from the side walls.
  • staples positioned at each corner inside the package as well as straps secured to the outer surfaces of the side walls at each corner to keep the side walls in a vertical position, which staples are adapted to engage buttons extending from the side walls.
  • buttons extending through the side walls for engaging with the fixing straps makes the application of the tray problematic in case of food products with a high moisture content.
  • One more aspect with regard to disadvantages of the cited tray lies in a fact that staples positioned inside the tray actually are limiting the internal space of the package as such and, it is quite evident, that they are making such a package inconvenient in practical use.
  • a self folding polygonal impermeable food box and a tool for its forming is known from the Prior Art according to WO 2016/182468 A1 .
  • Disclosed box coated with a protective layer has a bottom with eight-sided base and six lateral sides, which are big in size, and two lateral sides of a smaller size, as well as eight corner sides directed towards the inside of the box, wherein the box is closed from above by a cover.
  • a principal disadvantage of this box lies in a fact that an arrangement of elements is such that that requires rerouting of a cutting machine and repetition of cutting the same element before its forming is accomplished, which takes place in several phases resulting in a low production effectiveness and low technology index.
  • Multi sided food tray [ US 5 253 801 ], which represents a food package including three components. These components are a unitary paperboard flanged tray blank having a bottom panel and upstanding gusseted sidewall panels, polymer material covering the tray interior surface and a cover or lidding.
  • a manufacture of the tray in question requires application of multiple die arrangements and application of a high-vacuum technique for shaping of the blank and protective film in the female mold. Any control deviation or component derating results in clearance leakage of the packaging.
  • a packaging device for a food product containing an integrated rotary knife known from the prior art according to EP1636118 , DE 60 2004 002 873 T2 , represents a highly specific packaging intended exclusively for a cheese of a medium-hard paste, and serves to smooth cutting that in a smooth manner by a special knife provided inside the packaging. That speaks to a fact that this package is not applicable for a wide range of food products other than just mentioned above.
  • the disadvantages of the known package designs are manufacturing complexity due to a large number of additional elements, increased amount of material packages are manufactured of, non-hermeticity of cardboard packages and impossibility to use them for long-term storage of wet and greasy food products.
  • the design types available on the market have significant disadvantages, namely: (i) they do not allow to reduce the amount of materials used, (ii) have complex structures increasing manufacturing time, (iii) do not allow to increase hermeticity of cardboard package if used for greasy or wet food products, (iv) do not allow to increase the period of preservation of hot food temperature and do not allow to keep the structure light-weight and durable simultaneously.
  • the available state-of-the-art package variants where the cover does nor form an integral part of the structure are not sufficiently hermetic because:
  • Some state-of-the-art designs provide for corners of different sizes and shapes which make a part of a blanking die and consist only of cardboard the package itself is made of. However, such corners are usually folded either inward or towards the outer part and are further glued to one of the walls. Moreover, such corners are used in packages with one-layer walls, therefore, they will always be visible. With that, the corners will be either contacting food or, in case they are located outside, may be exposed to the environment, which leads to deformation of package and loss of its integrity.
  • the entire package manufacturing process from die-cutting to assembling and further transportation shall reduce duration of all stages maintaining the same level of package quality including its hermeticity and apperance.
  • the technical result of the invention is increase of hermeticity, prolonged conservation of heat of food products placed into a package, durability and light weight of a laminated-cardboard product when using a package as intended and stacking, reduction of assembling time and maintaining hermeticity and agreeable appearance of a package.
  • the technical result is reached by manufacturing a three-dimensional structure by means of a blanking die during assembling of which double side walls are formed which adjoin each other tightly by means of additional elements, namely the profiled outline_elements and corner elements which form hermetic membranes in the corners of the structure and the external wall becomes the support of the entire structure and prevents the contact between the package bottom and the surface it is placed upon.
  • the package ⁇ design allows to use it both as a self-sufficient product and in combination with different covers which additionally increase its hermeticity.
  • One of the important problems solved by this invention is to propose an optimal and accelerated method of assembling packages with embedded additional elements designed for increase of hermeticity of the entire structure maintaining the eye-pleasant exterior of the package.
  • This invention relates both to design of package and method of its manufacturing.
  • the package proposed by this invention is manufactured of cardboard.
  • the package consists of double-wall cardboard with the side contacting food products being coated with a laminated layer.
  • the cardboard structure, availability of double walls and all necessary components allow to obtain a rigid and at the same time light-weight package, which does not allow cardboard to crease and deform during operation.
  • the package bottoms are manufactured of pulp-and-paper material and the side of the package contacting food products is coated with lamination based on such polymer materials as polyethylene or polypropylene or laminated by a ready polymer film (polyethylene, polypropylene, polyethylene terephthalate or multi-layer film) with use of a gluing substance, or with cellulose film.
  • the protective layer is made of a bio-degradable polymer or bio-degradable film material.
  • the package is manufactured of a pre-cut blank (form) of necessary size which comprises a bottom, double walls on each side, corner segments between the walls as well as additional profiled outline elements on the sides in the upper parts of the package walls.
  • additional locking holes may be located on the outer walls of the package for clamping a cover if necessary.
  • the package is assembled by folding the flat blank along the crease lines.
  • the double walls are formed by folding along the horizontal lines in the central parts of the walls and then along the crease lines between the side walls and the bottom, as a result of which the package is formed as a three-dimensional structure.
  • the side walls located opposite to each other have additional profiled outline elements.
  • the said additional elements are designed for improving the technical result both for the purpose of increasing general hermeticity of the structure and improving fixation of the corner elements since the latter are actively involved in the package assembling process.
  • the corner segments of small area would have not provided reliable clamping of the package after assembling.
  • the shape of the additional element is calculated based on the final size of the package since the area of the element shall (i) have appropriate size in order to optimise cardboard consumption, (ii) be a little bit larger than the corner elements in order to overlap them, (iii) contact the inner part of the side wall to make it possible to glue them together and therefore to clamp the structure reliably.
  • the additional elements allow both to increase durability and to prolong its application both by placing separately on a surface and by stacking (placing packages on top of each other).
  • a three-dimensional structure is formed by pressing the package bottom from the inner side which initiates the process of connecting the side walls to each other. Due to the fact that the additional profile elements turned out to be located between the corner segment and the adjacent side wall after the previous folding of the side walls one after another, the additional profile element and the corner segments are smoothly installed in between the double walls in the course of pressing.
  • a key distinction of the package is availability of the comer segment which is a membrane (diaphragm) consisting of two V-shaped elements. One of the segments has no cardboard layer.
  • the corner element consisting of 2 V-shaped segments one of which consists of a cardboard layer and a laminated layer and another consists only of a laminated layer forms a membrane designed for maintenance and significant extension of the hermeticity period of the package.
  • V-shaped corner segment consisting only of film allows to reach the technical result aiming at increase of hermeticity and acceleration of the assembling process.
  • the diaphragm (membrane) is a part of the entire laminated layer applied to the surface of the package to prevent soaking of the pulp-and-paper base after contacting food products.
  • availability of one V-shaped segment, namely the diaphragm (membrane) without a cardboard base in this part allows to perform assembling using the proposed method.
  • a completely cardboard V-shaped corner element would have led to compression of this segment and deformation of the package if used by means of the claimed method and, therefore, would have not allowed to reduce the bottom assembling duration and would have added an additional product assembling stage.
  • the cardboard V-shaped corner segment pulls the film V-shaped corner segment when using the claimed assembling method, it correspondingly allows to get the required final design of the package, as a result the additional profile element and the corner segment are smoothly and simply inserted and clamped between the side double wall.
  • V-shaped corner segment made of film and another V-shaped corner segment made of cardboard provides hermeticity, accelerates assembling, promotes human safety and health, increases rigidity in this part, reduces thickness of additional material and keeps an agreeable appearance.
  • the corner element described herein may be used in different formats of cardboard package to form a hermetic bottom.
  • This invention is claimed in relation to a package to which a cover of different types and sizes having locks may be fixed.
  • the double walls allow to maintain hermeticity since the cover locks are fixed to the mating locks in the package bottom which have a form of holes of corresponding sizes and shapes. With one-layer bottom of the package, the slits would have not allowed to maintain hermeticity of the entire structure.
  • the slits may have optimal and appropriate sizes providing reliable clamping.
  • the claimed solution is also designed to keep food warm for a longer time.
  • the outer side walls are increased in length and, due to it, the formed protrusion prevents the contact between the bottom and the surface a package is placed upon.
  • the air gap formed between the surface and the package bottom and surrounded by the side walls allows to keep the food warm for a long time.
  • the space formed between the bottom and the surface and the double walls form the air layers similar to the ones in thermoses which allow to keep food or liquids warm.
  • the air layer allows to keep food warm for a longer time as compared to the currently proposed solutions.
  • this invention does not limit the basic structural material to pulp-and-paper materials. Given that the inner surface of the package is completely laminated, which protects the basic structural material from moisture and fats extracted by food products, other materials containing processed pulp-and-paper materials or scrap paper may be used as the structural material.
  • Optimal number of all components of the package also allows to create packages with different number of side walls and with different dimensions. If the walls are extended in length or width, only dimensions of the additional and corner elements may be modified for the purposes of assembling without loss of hermeticity and assembly time.
  • package exterior is shown for illustrative purposes. In actual practice, there may be any types, materials, dimensions and shapes of packages.
  • the package form variant ( fig. 1 ) is manufactured of a sheet cardboard blank with laminated layer applied to one side of cardboard contacting food products which may be assembled as a three-dimensional container.
  • Fig. 1 , 2 , 3 demonstrate the inner side of a flat blank with the applied laminated layer which contacts food products.
  • Fig. 4 demonstrates the outer (reverse) side of the package blank as seen from the bottom side.
  • Fig. 1 shows the flat blank with the package bottom (1) presented as a square.
  • the bottom may have any dimensions and formats.
  • the side walls (3) (3a, 3b) having the profiled outline elements (4) are folded along the crease lines (2) one after another. With that, the wall (3a) is glued to the wall (3b) by means of glue previously applied to the inner side of the wall when being folded along the crease line (2).
  • Fig. 2 shows the flat blank with already formed double walls (3) on which the double walls (6) (6a and 6b) without additional elements are being formed along the crease lines (5) to overlap a part of the side wall (3b) and the profiled outline elements (4).
  • Fig. 3 demonstrates the flat blank with already formed double walls (3, 6) as seen from the inner side of the package.
  • Fig. 4 shows the flat blank with already formed double walls (3, 6) as seen from the reverse side and it demonstrates that the side wall (3b) and the profiled outline elements are overlapped by the wall (6b).
  • Fig. 1 , 2 , 4 also show the locks (7) on the walls (3b, 6b) having a form of profile holes and located on the outer sides of the package after folding to make it possible to install a cover on the package.
  • locks (7) may have different sizes, shapes and number to fit different types of covers.
  • Fig. 5 , 6 demonstrate the corner element (8), the profiled outline elements (4) and the side walls (3, 6) close up and the process of formation of hermeticity of the entire package when folding.
  • Fig. 6 shows how the element (4) located on the side wall (3b) is inserted between the side walls (6a) and (6b) after formation of the double walls (3, 6) with profiled outline elements (4) when folding the package along the lines (9) and forming a three-dimensional product.
  • the corner element (8) consisting of two V-shaped segments (8a, 8b) is also inserted completely between the double walls (6a) and (6b).
  • the V-shaped corner segment (8a) consisting of cardboard and a laminated layer pulls the V-shaped segment (8b) consisting only of laminated layer and having a form of a membrane (diaphragm) to form the hermetic corners of the product.
  • the corner element (8) consisting of the cardboard part (8a) and the membrane (8b) and the profiled outline element (4) are installed in between the double walls (6a) and (6b).
  • Fig. 7 , 8 demonstrate the assembled package with the side walls (3a, 3b, 6a, 6b) formed so that the profiled outline element (4) is installed between the walls (6a) and (6b).
  • fig. 8 shows the package with the side walls (3b) and (6b) increased relative to the bottom.
  • the profiled outline elements (4) are overlapped by the side wall (6b).
  • the assembly process described above allows to form a hermetic package and it is worth noting that the package exterior is shown for illustrative purposes only. In actual practice, there may be any types of packages with double walls and hermetic corner elements with the described technology and materials applied.
  • the double walls (6a, 6b) and hermetic membrane corner elements (8) are obtained when forming a flat blank into a three-dimensional product.
  • the advantages of the proposed package are its simplicity and reduced assembly time, demand for only those additional elements that are necessary to form both durable and light-weight structure with increased package hermeticity period.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Claims (4)

  1. Hermetische Verpackung für Lebensmittel, einschliesslich für solche, die Fette und Feuchtigkeit enthalten oder abgeben, hergestellt aus einem formbildenden Material, das aus einem Strukturmaterial und einer laminierten Schutzschicht besteht, die nur auf der Innenseite des Strukturmaterials angebracht ist, welche die Lebensmittel berührt, wobei die Verpackung Winkelelemente (8) in der Nähe des Bodens (1) zwischen den Seitenwänden (3, 6) der Verpackung hat, von denen jedes Winkelelement (8) aus zwei symmetrischen V-förmigen Segmenten (8a, 8b) besteht, wobei das eine Segment (8b) der beiden V-förmigen Segmente nur eine laminierte Schutzschicht enthält, während das andere (8a) dieser beiden Segmente beides hat, die Schicht des Strukturmaterials und die laminierte Schutzschicht, wobei zur Bildung der hermetischen Verpackung die Winkelelemente (8) und profilierte Konturelemente (4), die sich in den oberen Teilen beider Seiten der gegenüberliegenden Seitenwände (3, 6) befinden, zwischen die angrenzenden Doppelwände eingefügt sind, dadurch gekennzeichnet, dass der äußere Teil der Doppelwand im Verhältnis zur Innenwand vergrößert ist und die Stütze der gesamten Verpackung bildet, wodurch Kontakte zwischen dem Boden (1) und der Oberfläche, auf der die Verpackung platziert wird, vermieden werden.
  2. Hermetische Verpackung nach Anspruch 1, dadurch gekennzeichnet, dass die Schutzschicht aus einem biologisch abbaubaren Polymer oder einem biologisch abbaubaren Filmmaterial besteht.
  3. Hermetische Verpackung nach Anspruch 1, dadurch gekennzeichnet, dass die Seitenwände (3b, 6b) mit Verriegelungslöchern (7) zum Festklemmen eines Deckels versehen sind.
  4. Verfahren zur Herstellung einer hermetischen Verpackung nach Anspruch 1, bei dem zuvor eine Stanzform mit einer laminierten Schicht hergestellt wird mit weiterer Formierung der Verpackung entlang der Faltlinie (2), die die Seitenwände (3, 6) vom Boden (1) trennt, dadurch gekennzeichnet, dass beim Pressen des Verpackungsbodens (1) gleichzeitig die doppelten Seitenwände geformt werden, zwischen denen die eine Membran (8b) bildenden Winkelelemente (8) und die zwischen den Seitenwänden (3, 6) befindlichen profilierten Konturelemente (4) eingefügt werden und die Außenwände nach der Bildung dem Boden (1) gegenüber vergrößert werden.
EP20913774.4A 2020-01-16 2020-12-10 Kartonverpackung und verfahren zum zusammensetzen davon Active EP3936449B1 (de)

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RU2020101623A RU2733176C1 (ru) 2020-01-16 2020-01-16 Картонная упаковка и способ сборки
PCT/RU2020/000676 WO2021145788A1 (ru) 2020-01-16 2020-12-10 Картонная упаковка и способ сборки

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RU2733176C1 (ru) 2020-09-29
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CN113439060A (zh) 2021-09-24
EP3936449A4 (de) 2022-12-28

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