WO2021005263A1 - Produit en carton revêtu et façonné et son procédé de fabrication - Google Patents

Produit en carton revêtu et façonné et son procédé de fabrication Download PDF

Info

Publication number
WO2021005263A1
WO2021005263A1 PCT/FI2020/050392 FI2020050392W WO2021005263A1 WO 2021005263 A1 WO2021005263 A1 WO 2021005263A1 FI 2020050392 W FI2020050392 W FI 2020050392W WO 2021005263 A1 WO2021005263 A1 WO 2021005263A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaped element
shaped
coating membrane
coated
board product
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.)
Ceased
Application number
PCT/FI2020/050392
Other languages
English (en)
Inventor
Panu Tanninen
Juha Varis
Mika KAINUSALMI
Ville LEMINEN
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.)
Lappeenrannan Teknillinen Yliopisto
Original Assignee
Lappeenrannan Teknillinen Yliopisto
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 Lappeenrannan Teknillinen Yliopisto filed Critical Lappeenrannan Teknillinen Yliopisto
Publication of WO2021005263A1 publication Critical patent/WO2021005263A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/16—Lining or labelling
    • B29C51/162—Lining or labelling of deep containers or boxes
    • 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
    • B31B50/26—Folding 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4212—Information or decoration elements, e.g. content indicators, or for mailing
    • 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
    • B31B2105/001—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs made from laminated webs, e.g. including laminating the 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/10—Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
    • B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
    • 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
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • B31B2120/402—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box
    • B31B2120/404—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box using vacuum or pressure means to force the liner against the wall
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2025—Multi-layered container, e.g. laminated, coated

Definitions

  • the disclosure relates to a coated and shaped board product that can be, for example but not necessarily, a casserole, a tray, a deep plate, or another receptacle.
  • the board can be for example paperboard or metal foil.
  • the disclosure relates to a method for manufacturing a coated and shaped board product.
  • Another method for manufacturing products having a three- dimensional shape is to fold a blank of paperboard or metal foil on appropriate places so that the paperboard or metal foil constitutes a desired three-dimensional shape. Press formed creases are often used to guide the folding when a blank of paperboard or metal foil is shaped to constitute the desired three-dimensional shape.
  • Press formed creases are often used to guide the folding when a blank of paperboard or metal foil is shaped to constitute the desired three-dimensional shape.
  • coated paperboard because many liquids can penetrate uncoated paperboard by infiltrating through it.
  • the above-mentioned method based on folding provides seamless products, but products manufactured with this method are however not free from challenges.
  • One of the challenges is related to a need to close a product, such as e.g. a food container or another receptacle, in a hermetic way.
  • modified atmosphere packing“MAP” can be needed to extend a shelf life of goods such as e.g. food and/or other perishable goods.
  • the folding a blank of paperboard or metal foil leads to an uneven surface to which a cover element is to be attached and thus it may be challenging to implement a reliable and tight joint between the product and the cover element.
  • Another challenge is that folds on wall portions of e.g.
  • a food container or another receptacle may act as capillary channels in which liquids may rise based on the capillary effect and thereby the liquids may get in contact with a joint between the receptacle and a cover element closing the receptacle.
  • the liquids may deteriorate the joint so that the joint gets leaking and thus e.g. protective gas may leak out from the receptacle and, on the other hand, airborne impurities may get into the receptacle.
  • plastic packages are still widely being used.
  • the word“geometric” when used as a prefix means a geometric concept that is not necessarily a part of any physical object.
  • the geometric concept can be for example a geometric point, a straight or curved geometric line, a geometric plane, a non-planar geometric surface, a geometric space, or any other geometric entity that is zero, one, two, or three dimensional.
  • the word“board” means a flat object having a substantially uniform thickness, such as e.g. paper board or metal foil.
  • a new coated and shaped board product that can be, for example but not necessarily, a food container, a casserole, a tray, a deep plate, or another receptacle.
  • a coated and shaped board product according to the invention comprises: - a shaped element made of board, the shaped element being seamless and having folds to form a three-dimensional shape of the shaped element, and
  • the coating membrane attached to a surface of the shaped element, the coating membrane being arranged to cover the folds of the shaped element so that the coating membrane is free from folds and wrinkles.
  • a hermetic room can be implemented by attaching a cover element to edge areas of the coating membrane in which case the hermetic room is formed between the cover element and the coating membrane.
  • folds on wall portions of e.g. a food container or another receptacle according to the invention cannot act as capillary channels because the coating membrane covers the folds and prevents liquids from getting into the folds.
  • the coating membrane is attached to the shaped element so that the coating membrane can be detached from the shaped element after use.
  • the coating membrane may comprise e.g.
  • the board can be for example uncoated paperboard because the shaped element made of the board does not need to provide sealing but mechanical stiffness only. Shaped elements made of same board material, e.g. uncoated paperboard, can be used for manufacturing packages for different products so that the coating membrane and a cover element are selected according to properties of the products to be packed.
  • a coated and shaped board product comprises one or more electronic components such as e.g. a radio frequency identifier“RFID” between the shaped element and the coating membrane.
  • RFID radio frequency identifier
  • the coating membrane As the coating membrane is attached after the piece of board has been shaped, the coating membrane does not get folded together with the piece of board. Furthermore, the coating membrane does not get subjected to mechanical stresses related to the shaping the piece of board.
  • figures 1 a, 1 b, and 1 c illustrate a coated and shaped board product according to an exemplifying and non-limiting embodiment
  • figure 2 shows a flowchart of a method according to an exemplifying and non-limiting embodiment for manufacturing a coated and shaped board product
  • figure 3a, 3b, and 3b illustrate a manufacturing phase of a coated and shaped board product
  • figures 4a, 4b, and 4c illustrate an exemplifying usage of coated and shaped board products according to an exemplifying and non-limiting embodiment.
  • Figure 1 a shows a part of a coated and shaped board product 101 according to an exemplifying and non-limiting embodiment.
  • Figure 1 b shows a section taken along a line A - A shown in figure 1 a
  • figure 1 c shows a section taken along a line B - B shown in figure 1 a.
  • the viewing directions related to figures 1 b and 1 c are illustrated with a coordinate system 199.
  • the coated and shaped board product 101 is a receptacle that comprises a bottom portion, wall portions connected to the bottom portion, and a rim portion 1 10 connected to the wall portions at the opening of the receptacle.
  • the coated and shaped board product 101 comprises a shaped element 102 made of board such as for example paperboard or metal foil.
  • the shaped element is seamless and has folds to form a three-dimensional shape of the shaped element. In figures 1 a and 1 b, one of the folds is denoted with a reference 103.
  • the coated and shaped board product 101 comprises a coating membrane 104 attached to the shaped element 102. In this exemplifying case, the coating membrane 104 covers an upper surface of the rim portion 1 10 and an inner surface of a cavity formed by the shaped element 102.
  • the coating membrane 104 is arranged to cover the folds of the shaped element 102 so that the coating membrane 104 is free from folds and wrinkles.
  • the coating membrane 104 can be for example a plastic membrane, an organic barrier coating, a metallized membrane, a multilayer membrane, a nanocomposite membrane, or another suitable membrane.
  • the invention is not limited to any specific membrane types and/or materials.
  • a hermetic room can be implemented by attaching a cover element to a portion of the coating membrane 104 that is coating the rim portion 110.
  • a part of the cover element is illustrated in figure 1 c, where the cover element is denoted with a reference 107.
  • the cover element is not shown in figure 1 a.
  • grooves on the folded surface of the rim portion 110 are not problematic from the viewpoint of sealing.
  • one of the grooves is denoted with a reference 106.
  • a channel that might act as a capillary channel if there were no coating membrane is denoted with a reference 105.
  • the cover element 107 can be for example a plastic membrane, an organic membrane, a metallized membrane, a multilayer membrane, a nanocomposite membrane, or another suitable flat element.
  • the coating membrane 104 is attached to the shaped element 102 so that the coating membrane 104 can be detached from the shaped element 102 after use. Thus, the shaped element 102 and the coating membrane 104 can be recycled separately.
  • the coating membrane 104 comprises a projection 115 the aid of which the coating membrane 104 can be torn off the shaped element 102.
  • a coated and shaped board product according to an exemplifying and non-limiting embodiment comprises at least one electronic component 118 such as e.g. a radio frequency identifier“RFID” between the shaped element 102 and the coating membrane 104. Thus, the electronic component 118 does not need a separate fastening arrangement.
  • Figure 2 shows a flowchart of a method according to an exemplifying and non limiting embodiment for manufacturing a coated and shaped board product. The method comprises the following actions:
  • - action 201 shaping a piece of board, e.g. paperboard or metal foil, to constitute a shaped element that is seamless and has folds to form a three- dimensional shape of the shaped element, and subsequently
  • - action 202 attaching a coating membrane to a surface of the shaped element to cover the folds of the shaped element so that the coating membrane is free from folds and wrinkles.
  • the above-mentioned action 201 can be carried out with any suitable method for shaping the board.
  • the board can be shaped by means of a shaping tool that comprises a female tool element and a male tool element such that one of these tool elements is movable relative to the other one.
  • the shaping tool may comprise a frame tool element for pressing a rim portion of the piece of board against edges of a cavity of the female tool element when or after the male tool element presses the center area of the piece of board into the cavity of the female tool element.
  • the shaping tool comprises advantageously heating means for warming up the board so as to facilitate the shaping of the board. It is to be noted that the invention is not limited to any specific method for shaping the board.
  • Figure 3a shows an exemplifying shaped element 302 made of board
  • figures 3b and 3c illustrate an exemplifying way to attach a coating membrane 304 to a surface of the shaped element 302.
  • the coating membrane 304 is pressed against the surface of the shaped element 302 with the aid of a gas pressure difference Dr so that the gas pressure is greater on a surface of the coating membrane 304 facing away from the shaped element 302 than on an opposite surface of the coating membrane 304 facing towards the shaped element 302.
  • Dr gas pressure difference
  • the gas pressure difference Dr can be accomplished with excess-pressure, under-pressure, or both.
  • the gas can be e.g. air.
  • the coating membrane 304 and/or the shaped element 302 can have a layer of adhesive material, or the coating membrane 304 can be made of material that is adhesive e.g. when it is hot. It is to be noted that the invention is not limited to any specific method for attaching the coating membrane to the shaped element.
  • the shaped element 302 comprises through-holes allowing gas to flow out from a room between the coating membrane 304 and the shaped element 302 when the coating membrane 304 is being pressed towards the shaped element 302 by the gas pressure difference Dr.
  • one of the through-holes is denoted with a reference 307.
  • the through-holes are made prior to the board is shaped i.e. when the board has a flat form.
  • the through-holes can be made at the same time when a blank of board is cut from a sheet or web of the board. It is however also possible that the through-holes are made prior to or after the blank of board is cut from the sheet or web of the board.
  • the thought-holes can be made with e.g. laser cutting, water jet cutting, or mechanically with a punching tool.
  • distances between adjacent ones of the above-mentioned through-holes are smaller on areas where radii of curvature of the three-dimensional shape of the shaped element 302 are smaller than on areas where radii of curvature of the three-dimensional shape of the shaped element 302 are greater.
  • the radii of curvature are smaller on a corner area 308 than on a wall area 309.
  • the wall area 309 is substantially flat and thus the radius of curvature is infinite.
  • the fact that the through-holes are more densely on areas with smaller radii of curvature facilitates the attachment of the coating membrane 304 to the whole area to be coated on the surface of the shaped element 302.
  • the fact that the through-holes are more densely on areas with smaller radii of curvature facilitates the shaping the board.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

Produit en carton revêtu et façonné (101) comprenant un élément façonné (102) composé de carton, par exemple du carton blanchi ou une feuille métallique. L'élément façonné est sans soudure et présente des plis (103) qui lui confèrent une forme tridimensionnelle. Le produit en carton revêtu et façonné comprend en outre une membrane de revêtement (104) fixée à une surface de l'élément façonné. La membrane de revêtement est conçue pour recouvrir les plis de l'élément façonné de sorte que la membrane de revêtement soit dépourvue de plis et de rides. La membrane de revêtement étant dépourvue de plis et de rides, une pièce hermétique peut être mise en œuvre par fixation d'un élément de couverture sur des zones de bord de la membrane de revêtement.
PCT/FI2020/050392 2019-07-08 2020-06-03 Produit en carton revêtu et façonné et son procédé de fabrication Ceased WO2021005263A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20195619A FI20195619A1 (en) 2019-07-08 2019-07-08 Coated and shaped sheet product and process for its manufacture
FI20195619 2019-07-08

Publications (1)

Publication Number Publication Date
WO2021005263A1 true WO2021005263A1 (fr) 2021-01-14

Family

ID=71784079

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2020/050392 Ceased WO2021005263A1 (fr) 2019-07-08 2020-06-03 Produit en carton revêtu et façonné et son procédé de fabrication

Country Status (2)

Country Link
FI (1) FI20195619A1 (fr)
WO (1) WO2021005263A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001192014A (ja) * 2000-01-13 2001-07-17 Dainippon Printing Co Ltd トレー状複合紙容器
DE20306120U1 (de) * 2003-04-16 2003-08-14 Siebertz, Norbert, 53797 Lohmar Aufricht- und Auskleidungsrevolver
US20120228306A1 (en) * 2011-03-08 2012-09-13 Converter Manufacturing, Inc. Liquid Sequestering Container, Optionally With Peelable Detachable Layers
WO2015009518A1 (fr) * 2013-07-19 2015-01-22 Meadwestvaco Corporation Contenant en carton scellable et son procédé de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001192014A (ja) * 2000-01-13 2001-07-17 Dainippon Printing Co Ltd トレー状複合紙容器
DE20306120U1 (de) * 2003-04-16 2003-08-14 Siebertz, Norbert, 53797 Lohmar Aufricht- und Auskleidungsrevolver
US20120228306A1 (en) * 2011-03-08 2012-09-13 Converter Manufacturing, Inc. Liquid Sequestering Container, Optionally With Peelable Detachable Layers
WO2015009518A1 (fr) * 2013-07-19 2015-01-22 Meadwestvaco Corporation Contenant en carton scellable et son procédé de fabrication

Also Published As

Publication number Publication date
FI20195619A1 (en) 2021-01-09

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