WO2003106277A1 - Joint de serti metallise pour contenant en une couche - Google Patents

Joint de serti metallise pour contenant en une couche Download PDF

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Publication number
WO2003106277A1
WO2003106277A1 PCT/US2003/010027 US0310027W WO03106277A1 WO 2003106277 A1 WO2003106277 A1 WO 2003106277A1 US 0310027 W US0310027 W US 0310027W WO 03106277 A1 WO03106277 A1 WO 03106277A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
seam
layer
polyolefin
single wrap
Prior art date
Application number
PCT/US2003/010027
Other languages
English (en)
Inventor
Keith Rea
Original Assignee
Sonoco Development, Inc.
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 Sonoco Development, Inc. filed Critical Sonoco Development, Inc.
Priority to AU2003223409A priority Critical patent/AU2003223409A1/en
Publication of WO2003106277A1 publication Critical patent/WO2003106277A1/fr

Links

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B65D3/22—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 with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • 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
    • B65D3/28—Other details of walls

Definitions

  • This patent relates to a single wrap container for holding foodstuffs or other oxygen or moisture sensitive products. More particularly, this patent relates to a single wrap container having a seam having an exposed underlying edge enclosed by tape having a metalized layer.
  • Single wrap containers formed from a single ply of material, can be used to hold drink mixes, snacks and other foods.
  • the single wrap container body typically is formed from a blank comprising layers of, from the inside out, polyolefin, paper stock, polyolefin, metal foil, polyolefin, printed paper and overlacquer.
  • the blank is die cut to the desired silhouette and then formed into a tubular shape by wrapping it once around a mandrel .
  • the overlapping ends of the blank form a straight seam.
  • the seam has an underlying portion and an overlying portion.
  • the edge of the underlying portion of the seam, and therefore an edge of the paper layer, is exposed to the container contents. Air and moisture can migrate through the paper layer into or out of the container.
  • LDPE low density polyethylene
  • EVOH ethylene vinyl alcohol copolymer
  • PET polyethylene terephthalate
  • PET glycol modified PET
  • nylon nylon, and combinations thereof.
  • the inventor made single wrap straight seam cans and covered the underlying body wall exposed edge with seam tape comprising a layer of PET interposed between LDPE layers.
  • the sealed containers were tested for air migration levels and the resulting levels were unacceptably high (0.10 cc of oxygen per container per day) .
  • What is needed is an improved side seam tape for preventing migration of air and moisture into or out of a sealed container.
  • the present invention is an improved seam tape for protecting the underlying exposed edge of single wrap containers.
  • the tape comprises a layer of metalized PET interposed between layers of LDPE.
  • the seam tape is especially useful with containers designed to hold products sensitive to oxygen and water.
  • Figure 1 is a perspective view of a single wrap blank formed into a tubular container.
  • Figure 2 is an enlarged partial sectional view of the single wrap container of Figure 1.
  • Figure 3 is an enlarged partial sectional view of the single wrap container of Figure 1 showing the seam tape of the present invention.
  • Figure 1 a blank formed into a single wrap straight walled tubular container.
  • the container 10 has a straight overlap seam 12 having an underlying portion 14 and an overlying portion 16.
  • the edge 18 of the underlying portion 14 is exposed to the inside contents of the container 10.
  • the blank used to form the single wrap container typically comprises layers of, from the inside out, polyolefin, paper stock, polyolefin, metal foil, polyolefin, printed paper and overlacquer.
  • polyolefin layers are low density polyethylene (LDPE) , but any suitable polyolefin, including high density polyethylene (HDPE) , may be used. Because the tubular container has an exposed edge, air can migrate through the paper layer into the container and moisture from the contents can wick into the paper layer.
  • LDPE low density polyethylene
  • HDPE high density polyethylene
  • seam tape 20 can be used to cover the underlying exposed edge 18 of the container wall, as shown in Figure 3.
  • Conventional seam tape comprises one or more layers of low density polyethylene (LDPE) , ethylene vinyl alcohol copolymer (EVOH) , polyethylene terephthalate (PET) , PETG, nylon, or combinations thereof.
  • LDPE low density polyethylene
  • EVOH ethylene vinyl alcohol copolymer
  • PET polyethylene terephthalate
  • PET polyethylene terephthalate
  • nylon nylon
  • the present invention is a seam tape comprising, in a first embodiment, a metal layer disposed between layers of polyolefin.
  • the polyolefin may be LDPE, HDPE or any other suitable polyolefin.
  • the polyolefin must match the polyolefin used in the blank for seal integrity.
  • the metal layer is PET coated with metal such as aluminum (“metalized aluminum PET") .
  • the coating may be accomplished by blade coating, spray coating, or any other suitable method.
  • the metal layer can be a metal foil, such as aluminum foil or tin foil.
  • the seam tape with metal layer is applied to the underside of the blank and wrapped around the exposed edge prior to wrapping the blank around the mandrel .
  • the seam tape may be applied to the inside of the tubular container after the container has been formed.
  • EXAMPLE Single wrap straight seam cans were made from blanks comprising layers of HDPE, paper, LDPE, foil and HDPE. The exposed underlying wall edge was covered with either a first seam tape comprising a layer of 48 gauge PET interposed between layers of 18 lb/ream (8.16 kg/ream) LDPE or a second seam tape comprising 48 gauge metalized aluminum PET interposed between layers of 18 lb/ream (8.16 kg/ream) LDPE. Both sets of sealed cans were tested for oxygen migration with a Mocon, Inc. oxygen transmission analyzer.
  • the average level of oxygen migration in the first set of containers was 0.10 cc of oxygen per container per day.
  • the average level of oxygen migration in the second set of containers was 0.01 cc of oxygen per container per day.

Abstract

L'invention concerne une bande de serti améliorée (20) servant à protéger le bord exposé sous-jacent de contenants en une couche (10). Cette bande comporte une couche de polyéthylène téréphtalate (PET) métallisé, intercalée entre des couches de polyéthylène basse densité (PEBD). Ladite bande de serti est particulièrement utile sur des contenants conçus pour conserver des produits sensibles à l'oxygène et à l'eau.
PCT/US2003/010027 2002-06-12 2003-04-01 Joint de serti metallise pour contenant en une couche WO2003106277A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003223409A AU2003223409A1 (en) 2002-06-12 2003-04-01 Metalized seam seal for single wrap container

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6411502A 2002-06-12 2002-06-12
US10/064,115 2002-06-12

Publications (1)

Publication Number Publication Date
WO2003106277A1 true WO2003106277A1 (fr) 2003-12-24

Family

ID=29731563

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/010027 WO2003106277A1 (fr) 2002-06-12 2003-04-01 Joint de serti metallise pour contenant en une couche

Country Status (2)

Country Link
AU (1) AU2003223409A1 (fr)
WO (1) WO2003106277A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010135613A1 (fr) 2009-05-21 2010-11-25 Meadwestvaco Corporation Réceptacle en carton fermé hermétiquement à performance de barrière améliorée
WO2011146087A1 (fr) 2010-05-21 2011-11-24 Meadwestvaco Corporation Contenants en carton scellés hermétiquement à performance de barrière améliorée
WO2012064478A1 (fr) 2010-11-08 2012-05-18 Meadwestvaco Corporation Récipients en carton dotés d'une couche barrière à double paroi
US20170174385A1 (en) * 2015-12-17 2017-06-22 Peter NILLE Container and method for producing a container
WO2020036515A1 (fr) * 2018-08-15 2020-02-20 Дмитрий Викторович САВЕЛЬЕВ Emballage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795366A (en) * 1955-05-05 1957-06-11 American Can Co Dual purpose pull strip
US3819085A (en) * 1972-03-28 1974-06-25 American Can Co Lap side seam of metal, tubular body and method for making same
US4355756A (en) * 1979-10-25 1982-10-26 Mitsubishi Kasei Kogyo Kabushiki Kaisha Containers adapted to contain foodstuffs
US5203492A (en) * 1990-09-12 1993-04-20 Rundpack Ag Packing container
US5353985A (en) * 1991-02-04 1994-10-11 Alusuisse-Lonza Services Ltd. Package
US5620135A (en) * 1994-04-07 1997-04-15 Ruediger Haaga Gmbh Container

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795366A (en) * 1955-05-05 1957-06-11 American Can Co Dual purpose pull strip
US3819085A (en) * 1972-03-28 1974-06-25 American Can Co Lap side seam of metal, tubular body and method for making same
US4355756A (en) * 1979-10-25 1982-10-26 Mitsubishi Kasei Kogyo Kabushiki Kaisha Containers adapted to contain foodstuffs
US5203492A (en) * 1990-09-12 1993-04-20 Rundpack Ag Packing container
US5353985A (en) * 1991-02-04 1994-10-11 Alusuisse-Lonza Services Ltd. Package
US5620135A (en) * 1994-04-07 1997-04-15 Ruediger Haaga Gmbh Container

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010135613A1 (fr) 2009-05-21 2010-11-25 Meadwestvaco Corporation Réceptacle en carton fermé hermétiquement à performance de barrière améliorée
US8113416B2 (en) 2009-05-21 2012-02-14 Meadwestvaco Corporation Hermetically sealed paperboard container with enhanced barrier performance
US20120104078A1 (en) * 2009-05-21 2012-05-03 Zhiquan Yan Hermetically Sealed Paperboard Container with Enhanced Barrier Performance
US8448844B2 (en) * 2009-05-21 2013-05-28 Meadwestvaco Corporation Hermetically sealed paperboard container with enhanced barrier performance
EP2604539A1 (fr) 2009-05-21 2013-06-19 MeadWestvaco Corporation Récipients en carton fermés hermétiquement avec performance de barrière améliorée
WO2011146087A1 (fr) 2010-05-21 2011-11-24 Meadwestvaco Corporation Contenants en carton scellés hermétiquement à performance de barrière améliorée
WO2012064478A1 (fr) 2010-11-08 2012-05-18 Meadwestvaco Corporation Récipients en carton dotés d'une couche barrière à double paroi
US20170174385A1 (en) * 2015-12-17 2017-06-22 Peter NILLE Container and method for producing a container
CN106892175A (zh) * 2015-12-17 2017-06-27 Ptm 包装工具机器私人有限公司 容器和用于生成容器的方法
US10589890B2 (en) 2015-12-17 2020-03-17 Ptm Packaging Tools Machinery Pte. Ltd. Container and method for producing a container
WO2020036515A1 (fr) * 2018-08-15 2020-02-20 Дмитрий Викторович САВЕЛЬЕВ Emballage

Also Published As

Publication number Publication date
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