WO2018009130A1 - Disque d'étanchéité pour récipient d'emballage à pression intérieure contrôlée et procédés de fabrication et de remplissage d'un tel récipient - Google Patents

Disque d'étanchéité pour récipient d'emballage à pression intérieure contrôlée et procédés de fabrication et de remplissage d'un tel récipient Download PDF

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Publication number
WO2018009130A1
WO2018009130A1 PCT/SE2017/050746 SE2017050746W WO2018009130A1 WO 2018009130 A1 WO2018009130 A1 WO 2018009130A1 SE 2017050746 W SE2017050746 W SE 2017050746W WO 2018009130 A1 WO2018009130 A1 WO 2018009130A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing disc
container
border
body opening
sealing
Prior art date
Application number
PCT/SE2017/050746
Other languages
English (en)
Inventor
Simon Holka
Lennart Larsson
Henrik Herlin
Maria SIÖLAND
Original Assignee
Å&R Carton Lund Aktiebolag
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 Å&R Carton Lund Aktiebolag filed Critical Å&R Carton Lund Aktiebolag
Priority to ES17824632T priority Critical patent/ES2870076T3/es
Priority to CN201780039261.6A priority patent/CN109476397B/zh
Priority to EP17824632.8A priority patent/EP3481733B1/fr
Priority to PL17824632T priority patent/PL3481733T3/pl
Publication of WO2018009130A1 publication Critical patent/WO2018009130A1/fr

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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
    • B65D3/10—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 form of integral or permanently secured end closure
    • B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/0018—Multiple-step processes for making flat articles ; Making flat articles the articles being pull-tap closure discs for bottles, jars or like containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/814—Applying closure elements to blanks, webs or boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/04—Cup-shaped plugs or like hollow flanged members
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/163—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/163—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately
    • B65D43/164—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately and connected by interfitting hinge elements integrally with the container and the lid formed respectively
    • 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
    • B65D5/12—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 with end closures formed separately from tubular body
    • B65D5/14—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 with end closures formed separately from tubular body with inset end closures
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads
    • B65D51/1694—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads the closure being for a box-like container
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/10—Construction of rigid or semi-rigid containers provided with covers, e.g. lids
    • 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
    • B65D2205/00—Venting means
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0018—Upper closure of the 43-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0018—Upper closure of the 43-type
    • B65D2251/0021—Upper closure of the 43-type of the B65D43/16-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1016—Means for locking the closure in closed position

Definitions

  • the present disclosure pertains to a paperboard sealing disc for use in a paperboard packaging container for bulk solids.
  • the present disclosure also relates to a method for producing a paperboard packaging container comprising the paperboard sealing disc.
  • paperboard packaging containers which serve as protective transport and storage containers at the retail end and as storage and dispensing containers at the consumer end.
  • Such paperboard containers are usually provided with an openable and closable lid, and with an inner removable or breakable transport closure which keeps the contents fresh and protected against contamination up until the container is opened by a consumer.
  • the bulk solids may be filled into a paperboard packaging container either from the container top or from the container bottom.
  • a sealing disc such as an upper transport sealing member or a bottom sealing disc when the packaging containers are filled from the bottom
  • a pressure above the ambient pressure may be built up within the packaging container when the sealing disc is pressed into the opening, upper opening or bottom opening, during sealing of the packaging container subsequent to the filling step.
  • One object of the present disclosure is to provide a paperboard sealing disc for use in a paperboard packaging container which enables a controlled and stabilized pressure within the packaging container during sealing of the paperboard packaging container.
  • the present disclosure relates to a paperboard sealing for use in a paperboard packaging container for bulk solids.
  • the packaging container comprises a container body with an upper end with an upper body opening and a bottom end with a bottom body opening, a container wall extending between the upper end and the bottom end in a longitudinal direction.
  • the container wall has an inner surface facing towards an inner compartment in the packaging container and an outer surface facing away from the inner compartment.
  • the sealing disc is intended for sealing the upper body opening or the bottom body opening.
  • the sealing disc comprises a sealing disc border surrounding a sealing disc base portion, wherein the border is delimited from the disc base portion by a sealing disc inner folding edge.
  • the sealing disc border is intended to be flexed at the inner folding edge and to project out of a main plane of the sealing disc and to be aligned with and sealed to the inner surface of the container wall.
  • the sealing disc comprises one or more distance element(s) arranged in the sealing disc border and facing the inner surface of the container wall.
  • the distance element(s) has a height (H), as measured from the surface of the sealing disc border.
  • the purpose of the distance elements is to form air conveying passages between the sealing disc border and the inner wall of the packaging to allowing air/gas to pass out between the sealing disc and the container wall in a controlled manner when applying the sealing disc in either the upper body opening or the bottom body opening, depending on in which end the packaging container is finally sealed.
  • the provision of air conveying passages between the sealing disc and the inner wall of the packaging container makes it possible to control the pressure level within the inner compartment of the packaging container during and after production of the packaging container.
  • an alternative to provide the sealing disc with distance elements and air passages is to include air passages in the packaging container inner wall.
  • the paperboard sealing disc is suitably applied after the paperboard packaging container has been filled from the upper body opening, after the bottom body opening has been closed, or alternatively after the paperboard packaging container has been filled from the packaging bottom, after the upper body opening has been initially closed, and in which a pressure above ambient pressure may be produced within the inner compartment of the packaging container, such as when the sealing disc is pressed into either the upper body opening or the bottom body opening for final sealing of the packaging container inner compartment.
  • the sealing disc provides air conveying passages during the assembly steps allows for a controlled and predetermined amount of air or gas passing out from the inner compartment of the packaging container when sealing the container inner compartment after filling.
  • the air conveying passages are provided between the border forming a flange and the inner surface of the container wall and are formed by the one or more distance element(s) to provide for controlled air outlet when the inner pressure rapidly rises above the ambient pressure during production of the packaging container.
  • the distance elements After attachment of the borders to the inner surface of the container wall, the distance elements are compressed, but will remain identifiable as compression marks at the outer surface of the sealing disc border. As the distance elements are provided prior to closing the bottom body opening, the container wall does not comprise any compression marks.
  • a controlled and stabilized pressure within the inner compartment in a closed packaging container has been found to be advantageous as it contributes to ensuring a uniform pressure level within the inner compartment between different packaging containers produced in the same production line.
  • the fact that the inner compartments of all packaging containers produced in the same run have a uniform inner pressure gives the advantage of uniformly shaped packages which are easier to arrange in uniform and stable stacks and to provide with a secondary package.
  • the bulk solids may be a pulverulent material.
  • the sealing disc is defined by outer edges, the distance elements may extend all the way to the outer edges or may be arranged at a distance from the outer edges.
  • the sealing disc comprises two or more distance elements arranged side-by- side in the sealing disc border and defining at least an air conveying passages between the distance elements.
  • the air conveying passage(s) is present before attachment of the flange to the inner surface of the container wall when the distance elements are compressed and the distance between the compressed distance elements corresponds to the width of the air conveying passages.
  • the sealing disc comprises at least 4 or 6 or 10 distance elements, such as between from 3 and 80 distance elements, such as between from 20 to 100 distance elements.
  • the distance elements may be equidistantly distributed along the sealing disc border.
  • the distance elements are provided at the sealing disc inner folding edge and/or with a distance of not more than 1 mm from the sealing disc inner folding edge.
  • the distance elements are provided with a distance within the range of from 0 to 0.1 mm from the sealing disc inner folding edge.
  • the distance elements are provided at the sealing disc inner folding edge and/or with a distance of not more than 1 mm from the sealing disc inner folding edge, such that the distance element(s) are provided on or close to the inner folding edge, contributes to that the air conveying passages remain open towards the inner
  • the sealing disc inner folding edge is thus arranged along the line where the sealing disc border is intended to be flexed when introduced into the paperboard packaging container, such that the sealing disc border may be attached to the inner wall of the container wall.
  • the sealing disc inner folding edge may be an imaginary inner folding edge prior to insertion of the sealing disc into the packaging container or may also constitute of a preformed folding line or crease line facilitating folding along the inner folding edge before folding the sealing disc such that the sealing disc border is flexed and shaped to a peripheral flange.
  • the distance elements are elongated distance elements having a length of at least 1 mm, such as from 1 to 15 mm, and form air conveying passage(s) in the form of air conveying channel(s) having a length of at least 1 mm, such as from 1 to 15 mm.
  • the distance element(s) may be elongated distance element(s) extending from, or over, the sealing disc inner folding edge to the sealing disc outer edges.
  • the distance elements have a length L of at least 1 mm and thus form one or more air conveying channels of at least 1 mm gives an effective passage-way between the inner compartment and the outside of the packaging container during production of the packaging container, allowing air or other gaseous media to flow out from the inner compartment of the packaging container when the pressure within the inner compartment raises above the ambient pressure.
  • the elongated distance elements extend across the sealing disc inner folding edge and on to the sealing disc base portion.
  • the height of the distance elements is 0.005 mm or more, such as from 0.005 mm to 3 mm, or such as from 0.003 mm to 1 mm, the height H being measured from the inner surface of the sealing disc, i.e. the surface intended to face the inner surface of the container wall.
  • the height H of the distance elements being at least 0.005 mm, such as within the range of from 0.005 mm to 3 mm, implies a corresponding depth of at least 0.005 mm, such as between 0.03 mm to 1 mm of the one or more air conveying passage(s) defined between the distance elements during insertion of the sealing disc and ensures an effective open passage for air or other gaseous media out from the inner compartment of the packaging container when the pressure within the inner compartment exceeds the ambient pressure during production of the packaging container as disclosed herein.
  • the sealing disc has a longitudinal direction y and a transverse direction x perpendicular to the longitudinal direction with a length of the sealing disc as measured in the longitudinal direction being greater than a width of the sealing disc in the transverse direction, and first and second longitudinal opposing border having a main extension in the longitudinal direction.
  • the sealing disc may further have first and second transverse opposing side portions having a main extension in the transverse direction.
  • the first and second longitudinal opposing side portions and the first and second transverse opposing side portions extend between corner portions, which are preferably curved corner portions, such as corner portions having a radius of curvature within the range of from 5 to 60 mm, preferably within the range of from 10 to 40 mm, more preferably within the range of from 15 to 30 mm.
  • the sealing disc may preferably have a modified rectangular shape with rounded comer portions.
  • a modified rectangular shape as used herein, includes shapes with rounded corner portions and linear longitudinal and transverse side portions as well as those shapes wherein one or more of the longitudinal and transverse side portions of the sealing disc is slightly curved, e.g. with a radius of curvature within the range of from 200 to 700 mm, preferably within the range of from 300 to 600 mm, more preferably within the range of from 400 to 500 mm.
  • the distance elements may extend side-by-side between the first and second longitudinal opposing border in the transverse direction of the sealing disc or with at least a main extension in the transverse direction of the sealing disc, i.e. the distance elements may extend at a small angle to the transverse direction, such as at a deviation from the transverse direction of the sealing disc of at most 20°.
  • the distance elements may extend parallel to each other or with an angle between them.
  • the distance elements may also intersect with each other at the sealing disc base portion. For reasons of stability and improved deformation resistance of the sealing disc, it may be preferred to arrange distance elements extending parallel to each other in the transverse direction of the sealing disc
  • the corner portions may be curved portions and may be free of distance elements. Corner portions which are free from distance elements improve the seal between the flange and the inner surface, as it reduces the risk of wrinkles being formed adjacent to the distance elements in the border when folding the border to form a flange. Wrinkles in the folded flange portion of the sealing disc may otherwise impair the seal between the flange of the sealing disc and the inner surface.
  • At least two distance elements extend across the sealing disc forming at least one air conveying channel extending between two opposing disc side portions and over the sealing disc base portion.
  • the border may be the first and second longitudinal opposing side portions and/or the first and second transverse opposing side portions. Distance elements extending across the sealing disc and over the sealing disc base portion may provide increased stability to the sealing disc during application of the sealing disc into the sealing end as there will be a certain pressure against the sealing disc provided by the compressed air which may cause deflection of the sealing disc.
  • sealing disc base portion is meant a portion of the sealing disc surrounded by a peripheral sealing disc portion comprising the borders of the sealing disc forming the peripheral flange.
  • the flange of the sealing disc is either preformed or formed when closing the upper or bottom body opening by pressing a sealing disc into the upper or bottom body opening.
  • a typical size ratio of the sealing disc surface area to the relevant upper or bottom body opening surface area may be 1.05 or more, such as from 1.0 to 1.2.
  • the border of the sealing disc may be deformed and flexed when the sealing disc is pressed into the body upper/bottom opening, such that the border of the sealing disc forms a flange projecting out of a main plane of the sealing disc, the flange is then aligned with the inner surface of the container body wall.
  • the distance elements comprise or consist of embossed dots or lines in the sealing disc.
  • An embossed distance element in the form of a dot may have a diameter within the range of from 1 to 4 mm and an embossed distance element in the form of a line may have a width or diameter within the range of from 1 to 4 mm.
  • the embossed elements in the sealing disc may be in the form of straight or curved lines, with dots or straight lines generally being preferred.
  • the distance elements comprise or consist of reinforcing strips.
  • the sealing disc comprises at least four air conveying passages.
  • the sealing disc comprises reinforcing elements in addition to the elongated ridge elements, such as reinforcing elements provided in, and extending only within, the sealing disc base portion.
  • additional reinforcing elements need not be arranged to provide gas passages and can take on any suitable shape such as circles, H-shapes, X- shapes, as well as logos, text, graphics, etc.
  • the reinforcing elements provide the sealing disc with enhanced rigidity, which may be advantageous during insertion of the sealing disc into the upper/bottom end opening as there will be a certain pressure exerted on the sealing disc by the rapidly compressed air in the inner compartment.
  • the elevated pressure inside the packaging container may cause deflection of the sealing disc.
  • deflection of the sealing disc may be reduced whereby the reinforcing elements contribute to creating a controlled and predetermined pressure within the inner
  • the sealing disc is a bottom disc.
  • the packaging container When the sealing disc is a bottom disc, the packaging container is first closed at the upper body opening with an inner partly or fully removable transport closure forming a cross- sectional seal between the inner compartment in the container body and the upper body opening.
  • the packaging container is subsequently filled from the bottom body opening with the bulk solids and finally the packaging container is sealed with the sealing disc according to the present disclosing, the sealing disc thus being a bottom disc.
  • the sealing disc is an inner partly or fully removable transport closure which may form a cross-sectional seal between the inner compartment in the container body and the upper body opening.
  • the packaging container is first closed at the bottom body opening by means of a bottom disc or folded bottom portions, as known in the art.
  • the packaging container is subsequently filled with the bulk solids from the upper body opening and finally the packaging container is sealed with the sealing disc as disclosed herein, the sealing disc thus being an inner partly or fully removable transport closure.
  • the shape of the sealing disc corresponds to the shape of the container body at the container upper body opening when the sealing disc is an inner partly or fully removable transport disc or to the bottom body opening when the sealing disc is a bottom disc.
  • the shape of the packaging container at the bottom of the packaging container may be further stabilized by means of a reinforcing bottom rim, such as a plastic bottom rim.
  • the present disclosure relates to a method of producing and filling a paperboard packaging container with bulk solids according to the first aspect wherein the sealing disc is a bottom disc, wherein the method comprises the steps of:
  • the sealing disc comprising a sealing disc border surrounding a sealing disc base portion, the sealing disc border being formed into a flange by being flexed towards the upper end in the longitudinal direction, the sealing disc comprising one or more distance element(s) being arranged in the sealing disc border on an inner surface facing the container body wall, the distance elements having a height in a direction perpendicular to the longitudinal direction of the container wall, with two or more air conveying passages being defined on each side of the one or more distance element(s) and between the inner surface of the sealing disc border and the container wall, and;
  • the present disclosure relates method of producing and filling a paperboard packaging container with bulk solids according to the first aspect wherein the sealing disc is a an inner partly or fully removable transport closure, characterized in that the method comprises the steps of:
  • the sealing disc comprising a sealing disc border surrounding a sealing disc base portion, the sealing disc border being formed into a flange by being flexed towards the upper end in the height direction, the sealing disc comprising one or more distance element(s) being arranged in the sealing disc border on an inner surface facing the container body wall, the distance elements having a height in a direction perpendicular to the longitudinal direction of the container wall, with two or more air conveying passages being defined on each side of the one or more distance element(s) and between the inner surface of the sealing disc border and the container wall, and;
  • the sealing disc comprises two or more distance elements arranged side-by- side in the sealing disc border and defining one or more air conveying passages between the distance elements, and wherein the air conveying passage(s) defined between the distance elements has/have a width of from 1 to 20 mm.
  • the height of the distance elements is at least 0.005 mm, such as from 0.005 mm to 3 mm, as measured from the inner surface of the sealing disc border.
  • the height of the distance elements is at least 0.03 mm, such as from 0.03 mm to 1 mm.
  • the sealing disc is pre-formed and already flexed and shaped to a flange before being pressed into the body upper/bottom opening.
  • the flange of the sealing disc is attached to the inner surface of the container wall by means of a welded gas tight seal in step f).
  • the welding process provides a highly controlled way of creating a seal with a
  • the seal is made by supplying energy to heat and locally soften or melt one or more thermoplastic component on the inner surface of the container wall and on the sealing disc and by pressing the sealing disc and the container wall together in a direction
  • thermoplastic material used to create the weld seal may be provided by a thermoplastic film or coating on the inner surface of the container wall and/or on the sealing disc.
  • a paperboard packaging container is a packaging container wherein the container body is formed from paperboard web material.
  • the paperboard container may be formed in any manner known in the art, e.g. by forming a container body by bending the paperboard web material into a tubular shape and longitudinally closing the tube by joining overlapping or abutting side edges of the sheet material. The join between the side edges may be covered by a sealing strip.
  • a paperboard web material is a material predominantly made from cellulose fibers or paper fibers.
  • the web material may be provided in the form of a continuous web or may be provided as individual sheets of material.
  • the paperboard material may be a single ply or multi ply material and may be a laminate comprising one or more layers of materials such as polymeric films and coatings, metal foil, etc.
  • the polymeric films and coatings may include or consist of thermoplastic polymers.
  • the paperboard materials as disclosed herein may also be referred to as cardboard or carton materials.
  • the term "bulk solids” refers to a solid material.
  • the bulk material may be dry or moist.
  • the bulk solids may be in the form of particles, granules, grinds, plant fragments, short fibres, flakes, seeds, formed pieces of material such as pasta, etc.
  • the bulk solids which are suitable for packaging in the packaging containers as disclosed herein may be flowable, which means that a desired amount of the product may be poured or scooped out of the packaging container, or in the form of discreet pieces of material allowing removal of only part of the content in the packaging container.
  • a "pulverulent material” as used herein is implied any material in the form of particles, granules, grinds, plant fragments, short fibres, flakes, etc.
  • a partly or fully removable transport closure may be gastight or gas-permeable.
  • a gastight member may be manufactured from any material or material combination suitable for providing a gastight sealing of a compartment delimited by the transport closure, such as aluminium foil, silicon-coated paper, plastic film, or laminates thereof.
  • a gastight member is advantageous when the bulk solids stored in the packaging container are sensitive to air and/or moisture, and it is desirable to avoid contact of the packaged bulk solids with ambient air.
  • a gastight transport closure is preferred as the purpose is to produce and maintained a controlled and stabilized pressure within the packaging container.
  • the peelable or openable transport closure forms a cross-sectional seal between an inner compartment in the container body and the container opening.
  • the inner peelable or openable transport closure is a transport and storage seal which is eventually broken or removed by an end user of the packaging container.
  • a packaging container having a volume of approximately 11 may be considered to be gas- tight if it provides an oxygen barrier of approximately 0.006 cc oxygen/24 h or less at 23 °C and 50% relative humidity.
  • the packaging container comprises a closure arrangement comprising a lid for closing the upper body opening.
  • the lid may be arranged to cooperate with an upper rim which is attached at the upper container body opening.
  • the upper rim may be a single plastic rim or a two-part rim construction arranged to reinforce and stabilize the upper container body opening on a paperboard packaging container.
  • the upper rim or a part of a two-part rim construction may be hingedly connected to the lid.
  • FIG. 2 shows an exploded view of a packaging container according to the present disclosure
  • Fig. 3 illustrates a perspective view of a bottom disc according to the present disclosure
  • Fig. 4 illustrates a perspective view of the bottom disc according to Fig. 3 with the disc border flexed to form a flange;
  • Fig. 5 illustrates a cross-section taken along the line V-V in Fig 4;
  • Fig. 6 illustrates a perspective view of the bottom disc according to Fig. 4;
  • Fig. 7 illustrates a perspective view of a bottom disc according to the present disclosure
  • Fig. 8 illustrates a cross-section taken along the line VIII-VIII in Fig. 7;
  • Fig. 9 illustrates a perspective view of the bottom disc according to Fig. 7
  • Figs. 1 and 2 illustrate a paperboard packaging container 1 for bulk solids according to the present disclosure.
  • the particular shape of the container 1 shown in the figures should not be considered limiting to the invention. Accordingly, a packaging container produced according to the invention may have any useful shape or size.
  • the packaging container 1 comprises a container body 2 having a container wall 3 extending between an upper end 4 with an upper body opening 5' and a bottom end 6 with a bottom body opening 5".
  • the container wall 3 has an inner surface 7 facing towards an inner compartment 9 in the packaging container 1 and an outer surface 8 facing away from the inner compartment 9.
  • the container body 2 is made from paperboard material as defined herein.
  • the packaging container 1 furthermore comprises an inner partly or fully removable transport closure 18, i.e. not being a sealing disc 10 as disclosed herein in the packaging container 1 disclosed in figs. 1 and 2, forming a cross-sectional seal between the inner compartment 9 in the container body 2 and the upper body opening 5', as shown in fig. 2.
  • the packaging container 1 also comprises a closure arrangement comprising a lid 16 and a sealing disc 10, in the form of a bottom disc, sealing the bottom body opening 5", the sealing disc 10 being defined by outer edges 30.
  • the sealing disc 10 also comprises a sealing disc border 1 1 surrounding a sealing disc base portion 12.
  • the border 1 1 is shaped before insertion and projects out of a main plane of the sealing disc 10 to form a flange 13 aligned with the inner surface 7 of the container wall 3.
  • the flange is sealed against the inner surface 7.
  • the sealing disc 10 may be attached by welding, such as by high frequency welding, to the inner surface 7 of the container wall 3 to ensure a tight seal between the flange 13 of the sealing disc 10 and the inner surface 7 of the container wall 3.
  • the sealing disc may be made from any suitable material such as paperboard, plastic or metal, paperboard sealing discs may generally be preferred.
  • the sealing disc 10 comprises distance elements 14 arranged side-by-side in the sealing disc border facing the inner surface 7 of the container wall 3.
  • the distance elements 14 have a height H in a direction perpendicular to the longitudinal direction of the container wall 3.
  • the illustrated distance elements 14 are elongated distance elements extending from the sealing disc inner folding edge 31 to the outer edges 30, forming air conveying passages 15 in the form of air conveying channels 15 between the distance elements 14.
  • the air conveying channels 15 have a width of between 1 and 20 mm, which corresponds to the width between the adjacent distance elements 14, and the purpose of the air conveying channels 15 is to provide air passage to control the pressure level within the inner compartment 9 of the packaging container 1 during assembly of the packaging container 1.
  • the air passage thus extends from the sealing disc inner folding edge 31 to the outer edges 30, thus forming a channel out from the inner compartment 9 before attaching the flange 13 to the inner surface 7 of the container wall 3.
  • the distance elements 14 are compressed such that an air-tight seal is formed between the flange 13 and the inner surface of the container wall 3.
  • the sealing disc 10 shown in fig. 2 is, in addition to the distance elements 14, provided with reinforcing elements 19 at the sealing disc base portion 12, which improves the stability of the sealing disc 10.
  • the reinforcing elements 19 may be embossed lines and/or dotted embossed lines in the sealing disc 10, alternatively, the reinforcing elements 19 may be reinforcing strips of material or reinforcing fold lines forming inwardly disposed ridges.
  • the packaging container 1 may, furthermore, be provided with a reinforcement rim 20.
  • the bottom reinforcement rim 20 may be joined to the inner surface 7 of the container wall 3 by welding such that a more reliably sift-proof join between the rim 20 and the container wall 3 can be achieved, than with an adhesive seal.
  • the packaging container is furthermore provided with an upper reinforcing rim (not shown) which is attached, e.g.
  • the frame structure 22 may then serve to provide features such as a lid hinge.
  • the frame structure 22 is in figs. 1 and 2 provided with locking elements 23 for retaining the lid 16 in a closed position over the access opening.
  • Fig. 3 shows a sealing disc 10, such as a bottom disc or a transport closure, in a flat and unfolded condition and provided with optional folding lines 21 for facilitated folding, such as when the sealing disc 10 is inserted into the bottom body opening 5", or alternatively into the upper body opening 5'.
  • the sealing disc 10 has a modified rectangular shape with curved edge portions 25 with first and second longitudinal opposing side portions 26, 27 and first and second transverse opposing side portions 28, 29 extending between the curved edge portions 25. As illustrated in this figure, each of the curved edge portions 25 are free from distance elements 14.
  • the curved edge portions 25 are free from distance elements 14 improves the seal between flange 13 and the inner surface 7 as it prevents wrinkles to form adjacent to the distance elements 14 in the border when folding the outer edge portion 1 1 to form a flange 13. This may otherwise impair the seal between the flange 13 of the sealing disc 10 against the inner surface 7 of the container wall 3.
  • Fig. 4 shows the sealing disc 10, such as a bottom disc or a transport closure, when the border 1 1 has been flexed to form a flange 13, as during insertion into the packaging container 1.
  • the sealing disc border 1 1 have been flexed along the folding lines 21 , forming a sealing disc inner folding edge 31 , shown in fig. 3, and projects out of a main plane of the sealing disc 10 to form a flange 13.
  • the sealing disc 10 further comprises distance elements 14 having a height H, and which protrude towards the inner surface 7 of the container wall 3 when the sealing disc has been introduced into either the bottom body opening 5" or alternatively into the upper body opening 5'.
  • the distance elements 14 extend from the sealing disc inner folding edge 31 to the outer edges 30 forming air conveying channels 15 between the distance elements 14. It should however be understood that the distance elements 14 may also be in the form of dots and shorter distance elements 14, as long as air conveying passages are formed between the distance elements 14.
  • the sealing disc 10 is additionally provided with reinforcing elements 19 in the sealing disc base portion 12, which further improves the stability of the sealing disc 10.
  • the reinforcing elements 19 are embossed lines forming inwardly disposed ridges.
  • the distance elements 14 in this figure extend to the sealing disc inner folding edge 31. However, the distance elements 14 may of course also be shorter and extend about 1 mm, or between from 1 to 3 mm from the sealing disc inner folding edge 31. In fig. 5 the height H of the distance elements 14, as measured from the inner surface of the sealing disc, is equal to or larger than the thickness T of the sealing disc 10.
  • Fig. 5 is a cross sectional view of the sealing disc 10 according to fig. 4 along the line V-V, wherein the height H, as measured from the inner surface of the sealing disc 10, of the distance elements 14 is at least 0.005 mm.
  • the air conveying channels have a width of between 0.5 and 8 cm, or between 0.5 and 5 cm. This ensures that the air conveying channels 15 provided between the distance elements 14 will provide an air passage to control the pressure level within the inner compartment of the packaging container during assembly of the packaging container, and specifically during the final sealing step after the packaging container 1 has been filled with the bulk solids.
  • Fig. 6 illustrates the sealing disc 10 from figs. 4 and 5 shown from the side facing away from the inner compartment 9.
  • Fig. 7 illustrates a sealing disc 10 with first and second longitudinal opposing side portions 26, 27 and first and second transverse opposing side portions 28, 29 extending between curved edge portions 25.
  • the sealing disc 10 is provided with distance elements 14 on the inner surface extending continuously over the sealing disc base portion 14 and between each of the opposing sealing disc side portion at the first and second longitudinal side portions 26, 27.
  • the curved edge portions 25 are free from distance elements14.
  • Fig. 8 is a cross sectional view of the sealing disc 10 according to fig. 7 along the line VIII- VIII, wherein the height H, as measured from the inner surface of the sealing disc 10, of the distance elements 14 is at least 0.03 mm, such as from 0.03 to 3 mm.
  • the air conveying channels have a width of between from 1 to 20 mm, or between from 3 to 10 mm. This contributes to that the air conveying channels 15 provided between the distance elements 14 provides an air passage to control the pressure level within the inner compartment of the packaging container.
  • Fig. 9 illustrates the sealing disc 10 according to fig. 7 shown from the side facing away from the inner compartment 9.
  • the sealing disc may thus for example be provided with more or fewer distance elements, larger or smaller flange, no reinforcement elements in the base portion, or alternatively a different type of reinforcements in the base portion.

Abstract

La présente invention concerne un disque d'étanchéité en carton (10) destiné à être utilisé dans un récipient d'emballage en carton (1) pour des matières solides en vrac. Le récipient d'emballage (1) comprend un corps de récipient (2) muni d'une extrémité supérieure (4) avec une ouverture de haut de corps (5'), et une extrémité inférieure (6) avec une ouverture de bas de corps (5"), une paroi de récipient (3) qui s'étend entre l'extrémité supérieure (4) et l'extrémité inférieure (6) dans une direction longitudinale (L). La paroi de récipient (3) comprend une surface intérieure (7) faisant face à un compartiment intérieur (9) dans le récipient d'emballage (1), et une surface extérieure (8) faisant face à l'opposé du compartiment intérieur (9). Le disque d'étanchéité (10) est destiné à rendre étanche l'ouverture de haut de corps (5') ou l'ouverture de bas de corps (5"). Le disque d'étanchéité (10) comprend une bordure de disque d'étanchéité (11) qui entoure une portion de base de disque d'étanchéité (12). La bordure (11) est délimitée de la portion de base de disque (12) par un bord de pliage intérieur de disque d'étanchéité (31). La bordure de disque d'étanchéité (11) est destinée à être fléchie au niveau du bord de pliage intérieur (31) pour faire saillie depuis un plan principal du disque d'étanchéité (10) et de façon à être alignée avec la surface intérieure (7) de la paroi de récipient (3) et à être scellée à celle-ci. Le disque d'étanchéité (10) comprend un ou plusieurs éléments d'écartement (14) disposés dans la bordure du disque d'étanchéité (11) et faisant face à la surface intérieure (7) de la paroi de récipient (3). Le ou les éléments d'écartement (14) ont une hauteur (H), mesurée à partir de la surface de la bordure de disque d'étanchéité (11).
PCT/SE2017/050746 2016-07-06 2017-07-04 Disque d'étanchéité pour récipient d'emballage à pression intérieure contrôlée et procédés de fabrication et de remplissage d'un tel récipient WO2018009130A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES17824632T ES2870076T3 (es) 2016-07-06 2017-07-04 Disco de sellado para recipiente de empaquetado con presión interna controlada y métodos para producir y llenar dicho recipiente
CN201780039261.6A CN109476397B (zh) 2016-07-06 2017-07-04 包装容器的密封盘以及生产和填充这种容器的方法
EP17824632.8A EP3481733B1 (fr) 2016-07-06 2017-07-04 Disque d'étanchéité pour récipient d'emballage à pression intérieure contrôlée et procédés de fabrication et de remplissage d'un tel récipient
PL17824632T PL3481733T3 (pl) 2016-07-06 2017-07-04 Dysk uszczelniający do pojemnika opakowaniowego z kontrolowanym ciśnieniem wewnętrznym i sposoby wytwarzania i napełniania takiego pojemnika

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1650995A SE542047C2 (en) 2016-07-06 2016-07-06 Sealing disc for packaging container with controlled internal pressure and methods for producing and filling such container
SE1650995-2 2016-07-06

Publications (1)

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WO2018009130A1 true WO2018009130A1 (fr) 2018-01-11

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PCT/SE2017/050746 WO2018009130A1 (fr) 2016-07-06 2017-07-04 Disque d'étanchéité pour récipient d'emballage à pression intérieure contrôlée et procédés de fabrication et de remplissage d'un tel récipient

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EP (1) EP3481733B1 (fr)
CN (1) CN109476397B (fr)
ES (1) ES2870076T3 (fr)
PL (1) PL3481733T3 (fr)
SE (1) SE542047C2 (fr)
WO (1) WO2018009130A1 (fr)

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WO2021089119A1 (fr) * 2019-11-05 2021-05-14 Å&R Carton Lund Aktiebolag Contenant d'emballage comprenant un corps de contenant et un élément d'étanchéité interne
US11878840B2 (en) 2019-07-02 2024-01-23 Gpi Systems Ab Method of producing a packaging container and a packaging container

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WO1987003536A1 (fr) * 1985-12-04 1987-06-18 Yhtyneet Paperitehtaat Oy Procede de preparation d'un recipient et ebauche pour le former
US5692638A (en) * 1993-09-08 1997-12-02 The Pillsbury Company Creased end to enhance composite can venting
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WO2021089119A1 (fr) * 2019-11-05 2021-05-14 Å&R Carton Lund Aktiebolag Contenant d'emballage comprenant un corps de contenant et un élément d'étanchéité interne

Also Published As

Publication number Publication date
ES2870076T3 (es) 2021-10-26
CN109476397A (zh) 2019-03-15
PL3481733T3 (pl) 2021-08-23
EP3481733A4 (fr) 2019-12-11
EP3481733B1 (fr) 2021-01-27
EP3481733A1 (fr) 2019-05-15
SE1650995A1 (en) 2018-01-07
CN109476397B (zh) 2020-11-13
SE542047C2 (en) 2020-02-18

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