EP4328143A1 - Flan d'emballage pour former un emballage et emballage formé à partir d'un flan d'emballage - Google Patents

Flan d'emballage pour former un emballage et emballage formé à partir d'un flan d'emballage Download PDF

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Publication number
EP4328143A1
EP4328143A1 EP23181484.9A EP23181484A EP4328143A1 EP 4328143 A1 EP4328143 A1 EP 4328143A1 EP 23181484 A EP23181484 A EP 23181484A EP 4328143 A1 EP4328143 A1 EP 4328143A1
Authority
EP
European Patent Office
Prior art keywords
crease line
transversal
linear
packaging blank
crease
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
EP23181484.9A
Other languages
German (de)
English (en)
Inventor
Marcello Barbieri
Francesca FEDELE
Filippo MALAVASI
Daniele GERARDI
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance 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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP4328143A1 publication Critical patent/EP4328143A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D3/00—Rigid 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
    • B65D3/02—Rigid 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 shape
    • B65D3/08—Rigid 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 shape having a cross-section of varying shape, e.g. circular merging into square or rectangular
    • 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
    • B65D5/02—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 or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/0209—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 or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body the tubular body having a curved or partially curved cross-section

Definitions

  • the present invention relates to a packaging blank, in particular having a multilayer structure, for forming a package filled with a pourable product, in particular with a pourable food product.
  • the present invention also relates to a package filled with a pourable product, in particular a pourable food product, and being formed from a packaging blank.
  • liquid or pourable food products such as fruit juice, UHT (ultra-high-temperature treated) milk, wine, tomato sauce, etc.
  • UHT ultra-high-temperature treated milk
  • wine tomato sauce
  • etc. are sold in packages made of sterilized packaging material.
  • a typical example is the parallelepiped-shaped package for liquid or pourable food products known as Tetra Brik Aseptic (registered trademark), which is made by sealing and folding a laminated packaging blank.
  • the packaging blank has a multilayer structure comprising a fibrous base layer, e.g. of paper or cardboard, covered on both sides with layers of heat-seal plastic material, e.g. polyethylene.
  • the packaging blank also comprises a layer of oxygen-barrier material (an oxygen-barrier layer), e.g. an aluminum foil, which is superimposed on a layer of heat-seal plastic material, and is in turn covered with another layer of heat-seal plastic material forming the inner face of the package eventually contacting the food product.
  • Packages of this sort are normally produced on fully automatic packaging apparatuses, which form the packages from respective packaging blanks.
  • These packaging blanks can be provided in the form of single packaging blanks or in the form of a web, which is formed from a plurality of successively arranged packaging blanks.
  • the packaging apparatus In the case of the packaging apparatus being designed to form the packages from a web, the packaging apparatus advances and sterilizes the web, which is then formed into a tube and filled with the pourable product before the tube is formed into individual sealed packages.
  • the packaging blanks are provided with a plurality of crease lines.
  • Number 1 indicates as a whole a packaging machine for producing (sealed) packages 40 of a pourable product, in particular a pourable food product such as pasteurized milk, fruit juice, wine, tomato sauce, etc., from respective packaging blanks 2 (see Figures 2 to 5 ).
  • a pourable food product such as pasteurized milk, fruit juice, wine, tomato sauce, etc.
  • packaging blanks 2 may have a multilayer structure.
  • each packaging blank 2 may comprise at least a layer of fibrous material, such as e.g. a paper or cardboard layer, and at least two layers of heat-seal plastic material, e.g. polyethylene, interposing the layer of fibrous material in between one another.
  • fibrous material such as e.g. a paper or cardboard layer
  • heat-seal plastic material e.g. polyethylene
  • One of these two layers of heat-seal plastic material may define an inner face of the respective package 40 obtained from the respective packaging blank 2 and eventually contacting the pourable product.
  • each packaging blank 2 may also comprise a layer of gas- and light-barrier material, e.g. aluminum foil or ethylene vinyl alcohol (EVOH) film, in particular being arranged between one of the layers of the heat-seal plastic material and the layer of fibrous material.
  • gas- and light-barrier material e.g. aluminum foil or ethylene vinyl alcohol (EVOH) film
  • EVOH ethylene vinyl alcohol
  • packaging blank 2 may also comprise a further layer of heat-seal plastic material being interposed between the layer of gas- and light-barrier material and the layer of fibrous material.
  • packaging blanks 2 are provided in the form of a web 3.
  • web 3 may be formed from a plurality of successively arranged packaging blanks 2.
  • the successively arranged packaging blanks 2 define a plurality of repeat units of web 3.
  • each repeat unit i.e. the respective packaging blank 2 forms the precursor of one respective package 40.
  • packaging machine 1 may be configured to produce packages 40 from web 3 such that each package 40 results from one respective packaging blank 2.
  • each packaging blank 2 may comprise a desired pattern/decoration.
  • Each packaging blank 2 may be designed to form a package 40 comprising:
  • each first portion and each second portion may define respectively a bottom portion and a top portion of the respective package.
  • each intermediate portion may be interposed between the respective first portion and the respective second portion.
  • each package 40 when each package 40 is in its nominal position (i.e. when being used by a user in an intended manner), the user recognizes the first portion as the bottom portion and the second portion as the top portion.
  • each second portion may be defined as the portion of the package, which can be manipulated such to allow for the outpouring of the pourable product.
  • the second portion may be manipulated so as to obtain a pouring opening or the second portion may comprise an opening device (e.g. a cap), which can be manipulated.
  • each intermediate portion may be defined to be gripped by a user.
  • each first wall may define a support surface of the respective package, which may be designed to be put in contact with a support, such as e.g. a shelf, when, in use, being e.g. exposed within a sales point or when being stored.
  • a support such as e.g. a shelf
  • each first wall may define a bottom wall of the respective package 40 (i.e. when the respective package 40 is arranged on the support the first wall is in contact with the support).
  • each side wall may be rounded or may have at least one or more rounded portions.
  • each side wall may be interposed between the respective first wall and the respective second wall.
  • the respective second wall may define a respective top wall.
  • each first wall and the respective second wall may be parallel to one another.
  • the first wall and the second wall may be inclined with respect to one another.
  • the second wall may define a slanted top or may define a portion of a gable-top.
  • Figure 2 shows a first embodiment of packaging blank 2.
  • Packaging blank 2 comprises at least a first transversal crease line 4 and a second transversal crease line 5 extending transversally to a longitudinal axis A of packaging blank 2 and dividing packaging blank 2 into:
  • each first transversal crease line 4 may delimit, and preferentially may be adjacent to, the respective top crease pattern 7 and each second transversal crease line 5 may delimit, and preferentially may be adjacent to, the respective bottom crease pattern 9.
  • each packaging blank 2 may extend along longitudinal axis A and a transversal axis B, perpendicular to longitudinal axis A.
  • each packaging blank 2 has a (substantially) 2-dimensional shape, i.e. respective extensions of each packaging blank 2 along longitudinal axis A and transversal axis B are significantly larger than a thickness of packaging blank 2.
  • each packaging blank 2 may have a rectangular or square shape.
  • each packaging blank 2 may comprise:
  • first direction D1 may be parallel to transversal axis B.
  • each first longitudinal boundary edge 15 and each second longitudinal boundary edge 16 may be connected to and interposed between the respective first transversal boundary edge 17 and the respective second transversal boundary edge 18.
  • each first longitudinal boundary edge 15 and each second longitudinal boundary edge 16 may be arranged at an angle of about 90° with respect to the respective first transversal boundary edge 17 and the respective second transversal boundary edge 18.
  • each packaging blank 2 being arranged singularly, i.e. separated from the other packaging blanks 2, the respective first longitudinal boundary edge 15, the respective second longitudinal boundary edge 16, the respective first transversal boundary edge 17 and the respective second transversal boundary edge 18 may be real edges.
  • each first transversal boundary edge 17 of one packaging blank 2 may be adjacent to, or coincide with, the respective second transversal boundary edge 18 of another packaging blank 2.
  • each first longitudinal boundary edge 15 of one packaging blank 2 may be adjacent to the respective second longitudinal boundary edge 16 of another packaging blank 2.
  • each longitudinal axis A may allow to define the respective longitudinal axis of the respective package 40 formed from the respective packaging blank 2.
  • each packaging blank 2 further comprises a plurality of linear crease lines, in particular at least a first linear crease line 19a and a second linear crease line 19b, extending from the respective first transversal crease line 4 and towards, but preferentially not up to, the respective second transversal crease line 5.
  • each linear crease line in particular the respective at least a first linear crease line 19a and the respective at least a second linear crease line 19b, may extend along only a portion of the respective intermediate region 10, i.e. linear crease lines do not extend up to the respective second transversal crease line 5.
  • linear crease lines in particular of at least a first linear crease line 19a and at least a second linear crease line 19b, facilitates the formation of side walls having a rounded shape or having portions having a rounded shape.
  • each first linear crease line 19a may be adjacent to, and preferentially also parallel to, the respective first longitudinal boundary edge 15.
  • no other linear crease line parallel to longitudinal axis A and/or extending from first transversal crease line 4 and towards second transversal crease line 5 may be interposed between each first linear crease line 19a and the respective first longitudinal boundary edge 15.
  • each second linear crease line 19b may be adjacent to, and preferentially also parallel to, the respective second longitudinal boundary edge 16.
  • no other linear crease line parallel to longitudinal axis A and/or extending from first transversal crease line 4 and towards second transversal crease line 5 may be interposed between each second linear crease line 19b and the respective second longitudinal boundary edge 16.
  • each first linear crease line 19a and each second linear crease line 19b may be closer to respectively the respective first transversal boundary edge 15 and the respective second transversal boundary edge 16 than to a center point 20 of the respective first transversal crease line 4.
  • each center point 20 may be defined as the point of the respective first transversal crease line 4 being equally distanced from a first end 21 and a second end 22 opposed to the respective first end 21 of the respective first transversal crease line 4.
  • each packaging blank 2 may further comprise one or more additional linear crease lines 19c interposed between the respective first linear crease line 19a and the respective second linear crease line 19b.
  • each additional linear crease line 19c defines a portion of the plurality of linear crease lines of the respective packaging blank 2.
  • each packaging blank 2 may be designed to facilitate the formation of a rounded shape and/or rounded portions of the respective side wall of the respective package 40.
  • each packaging blank 2 may be equally spaced from one another, in particular with respect to first direction D1.
  • each linear crease line, in particular the respective first linear crease line 19a, the respective second linear crease line 19b, and preferentially the respective additional linear crease lines 19c, of each packaging blank 2 may be (substantially) parallel to the respective longitudinal axis A.
  • each linear crease line, in particular each first linear crease line 19a, each second linear crease line 19b and in particular also each additional linear crease line 19c, of each packaging blank 2 may have a respective extension, which is at most 30 %, preferentially at most 20 %, even more preferentially at most 17 %, of a respective distance d between the respective first transversal crease line 4 and the respective second transversal crease line 5.
  • each linear crease line, in particular each first linear crease line 19a, each second linear crease line 19b and in particular also each additional linear crease line 19c, of each packaging blank 2 may have a respective extension, which may range between 4% to 20%, preferentially between 6% to 18%, even more preferentially between 8% to 16%, of the respective distance d between the respective first transversal crease line 4 and the respective second transversal crease line 5.
  • each distance d between the respective first transversal crease line 4 and the respective second transversal crease line 5 may be defined with respect to a linear axis being coaxial to the respective linear crease line, i.e. to first linear crease line 19a or second linear crease line 19b or the additional linear crease line 19, and extending from the respective first transversal crease line 4 to the respective second transversal crease line 5.
  • each linear crease line, in particular each first linear crease line 19a, each second linear crease line 19b and in particular also each additional linear crease line 19c, of each packaging blank 2 may have an extension (length) ranging between 5 mm to 25 mm, preferentially between 8 mm to 22 mm, even more preferentially between 10 mm to 20 mm.
  • each linear crease line, in particular the respective first linear crease line 19a, the respective second linear crease line 19b and in particular also the respective additional linear crease line 19c, of each packaging blank 2 may have the same extension (length) as the other linear crease lines of the respective packaging blank 2.
  • each first linear crease line 19a may have the same extension (length) as the respective second linear crease line 19b, and in particular also the respective additional linear crease line 19c.
  • each packaging blank 2 may further comprise a plurality of auxiliary linear crease lines 23, in the specific example shown four, extending from the respective second transversal crease line 5 towards, but not up to the respective first transversal crease line 4.
  • each auxiliary linear crease line 23 may extend along only a portion of the respective intermediate region 10.
  • auxiliary linear crease lines 23 may face one respective linear crease line.
  • At least a auxiliary linear crease line 23 and at least another auxiliary linear crease line 23 may face respectively the corresponding first linear crease line 19a and the corresponding second linear crease line 19b.
  • each packaging blank 2 may comprise a plurality of pairs 24 of auxiliary linear crease lines 23.
  • the respective auxiliary linear crease lines 23 of each pair 24 may be arranged such to define a V-shape, preferentially with an intersection point lying on or at least being adjacent to the respective second transversal crease line 5 and/or diverging towards the respective first transversal crease line 4.
  • auxiliary linear crease line 23 may allow to form respective edges of the respective package 40 having an increased strength.
  • each second transversal crease line 5 may have a linear shape, preferentially being perpendicular to longitudinal axis A.
  • each first transversal crease line 4 may comprise a plurality of first linear portions 30 perpendicular to the respective longitudinal axis A and a plurality of second linear portion 31 transversal to the respective longitudinal axis A.
  • each second linear portion 31 may be interposed between two respective first linear portions 30.
  • each top crease pattern 7 may comprise a plurality of additional crease lines 32, preferentially some being parallel and some being transversal to the respective longitudinal axis A.
  • each top crease pattern 7 may also comprise an auxiliary top transversal crease line 33, in particular transversal, even more particular perpendicular, to the respective longitudinal axis A.
  • additional crease lines 32 may be interposed between the respective first transversal crease line 4 and the respective top transversal crease line 33.
  • each top transversal crease line 33 may be adjacent to and parallel to the respective first transversal boundary edge 17.
  • each bottom crease pattern 9 may comprise a plurality of additional crease lines 34, preferentially some being parallel and some being transversal to the respective longitudinal axis A.
  • each bottom crease pattern 9 may also comprise an auxiliary bottom transversal crease line 35, in particular transversal, even more particular perpendicular, to the respective longitudinal axis A.
  • additional crease lines 34 may be interposed between the respective second transversal crease line 5 and the respective bottom transversal crease line 35.
  • each bottom transversal crease line 35 may be adjacent to and parallel to the respective second transversal boundary edge 18.
  • the respective crease lines e.g. first transversal crease line 4 and/or second transversal crease line 5 and/or first linear crease line 19a and/or second linear crease line 19b and/or additional linear crease lines 19c and/or auxiliary linear crease lines 23 and/or additional crease lines 32 and/or top transversal crease line 33 and/or additional crease lines 34 and/or bottom transversal crease line 35, of each packaging blank 2 may define a plurality of panels. More specifically, the panels may give origin and/or may correspond to various sections of the respective package 40.
  • the panels may give origin and/or may correspond to the respective first portion, preferentially the respective bottom portion, the respective intermediate portion and the respective second portion, preferentially the respective top portion.
  • some of the panels may give origin and/or may correspond to the respective first portion and/or some of the panels may give origin and/or may correspond the second portion and/or some panels give origin and/or may correspond to the intermediate portion.
  • each packaging blank 2 i.e. each first linear crease line 19a and each second linear crease line 19b, and preferentially each additional linear crease line 19c, may be arranged in correspondence of a respective section defined by one or more respective panels, which in turn corresponds to a respective corner of the respective second portion, preferentially of the respective top portion, even more preferentially of the respective second wall.
  • each auxiliary linear crease line 23 may be arranged in correspondence of a respective section defined by one or more respective panels, which in turn correspond to respective corners of the respective first portion, preferentially of the respective bottom portion, even more preferentially of the respective first wall.
  • top crease pattern 7 defines the panels that form the top portion, preferentially the top wall, of package 40.
  • bottom crease pattern 9 defines the panels that form the bottom portion, preferentially the bottom wall, of package 40.
  • each linear crease line of the packaging blank 2 i.e. the first linear crease line 19a and the second linear crease line 19b, and preferentially the additional linear crease line 19c, may be arranged in correspondence of a section defined by one or more respective panels, which in turn correspond to a respective corner of the top portion, even more preferentially of the second wall.
  • each auxiliary linear crease line 23 of the packaging blank 2 may be arranged in correspondence of a section defined by one or more respective panels, which in turn correspond to a respective corner of the bottom portion, even more preferentially of the first wall.
  • number 2' indicates an alternative embodiment of packaging blank according to the present invention.
  • packaging blank 2' is similar to packaging blank 2, the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts.
  • packaging blank 2' differs from packaging blank 2 in that no further linear crease line extending from the respective first transversal crease line 4 and towards the respective second transversal crease line 5 is interposed between the respective first linear crease line 19a and the respective second linear crease line 19b.
  • number 2" indicates an alternative embodiment of packaging blank according to the present invention.
  • packaging blank 2" is similar to packaging blank 2, the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts.
  • packaging blank 2" differs from packaging blank 2 in that each auxiliary linear crease line 23 may be parallel to the respective longitudinal axis A.
  • one auxiliary linear crease line 23 and another auxiliary linear crease line 23 may be coaxial to respectively first linear crease line 19a and second linear crease line 19b.
  • auxiliary linear crease line 23 may face a respective linear crease line.
  • number 2" ' indicates an alternative embodiment of packaging blank according to the present invention; as packaging blank 2" ' is similar to packaging blank 2'', the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts.
  • packaging blank 2′′′ differs from packaging blank 2" in that no further linear crease line extending from the respective first transversal crease line 4 and towards the respective second transversal crease line 5 is interposed between the respective first linear crease line 19a and the respective second linear crease line 19b.
  • packaging machine 1 may be configured to form respective packages 40 filled with the pourable product from any one of packaging blanks 2, packaging blanks 2', packaging blanks 2" and packaging blanks 2′′′, preferentially when being provided in the form of a respective web 3.
  • packaging machine 1 may comprise at least:
  • packaging blank 2 or packaging blank 2' or packaging blank 2" or packaging blank 2" ' according to the present invention will be clear from the foregoing description.
  • linear crease lines in particular at least first linear crease line 19a and second linear crease line 19b the formation of a rounded shape and/or of rounded portions of each package 40 is facilitated.
  • packaging blank 2 or packaging blank 2' or packaging blank 2" or packaging blank 2′′′ as described herein without, however, departing from the scope of protection as defined in the accompanying claims.
EP23181484.9A 2022-08-02 2023-06-26 Flan d'emballage pour former un emballage et emballage formé à partir d'un flan d'emballage Pending EP4328143A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22188314 2022-08-02

Publications (1)

Publication Number Publication Date
EP4328143A1 true EP4328143A1 (fr) 2024-02-28

Family

ID=82786693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23181484.9A Pending EP4328143A1 (fr) 2022-08-02 2023-06-26 Flan d'emballage pour former un emballage et emballage formé à partir d'un flan d'emballage

Country Status (2)

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EP (1) EP4328143A1 (fr)
WO (1) WO2024027991A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5738272A (en) * 1996-03-21 1998-04-14 Tetra Laval Holdings & Finance S.A. Gable top carton and carton blank having reduced surface area per unit volume
WO2019201860A1 (fr) * 2018-04-20 2019-10-24 Tetra Laval Holdings & Finance S.A. Emballage scellé contenant un produit alimentaire versable et matériau d'emballage en feuille pour la production d'un emballage scellé contenant un produit alimentaire versable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5738272A (en) * 1996-03-21 1998-04-14 Tetra Laval Holdings & Finance S.A. Gable top carton and carton blank having reduced surface area per unit volume
WO2019201860A1 (fr) * 2018-04-20 2019-10-24 Tetra Laval Holdings & Finance S.A. Emballage scellé contenant un produit alimentaire versable et matériau d'emballage en feuille pour la production d'un emballage scellé contenant un produit alimentaire versable

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