EP1381548B1 - Flexible container and method for manufacturing the same - Google Patents

Flexible container and method for manufacturing the same Download PDF

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Publication number
EP1381548B1
EP1381548B1 EP02724848A EP02724848A EP1381548B1 EP 1381548 B1 EP1381548 B1 EP 1381548B1 EP 02724848 A EP02724848 A EP 02724848A EP 02724848 A EP02724848 A EP 02724848A EP 1381548 B1 EP1381548 B1 EP 1381548B1
Authority
EP
European Patent Office
Prior art keywords
duct
container
compartment
container blank
side walls
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.)
Expired - Lifetime
Application number
EP02724848A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1381548A1 (en
Inventor
Ake Rosen
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.)
Eco Lean Research and Development AS
Original Assignee
Eco Lean Research and Development AS
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 Eco Lean Research and Development AS filed Critical Eco Lean Research and Development AS
Publication of EP1381548A1 publication Critical patent/EP1381548A1/en
Application granted granted Critical
Publication of EP1381548B1 publication Critical patent/EP1381548B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5816—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion
    • B65D75/5822—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion and defining, after tearing, a small dispensing spout, a small orifice or the like

Definitions

  • the present invention relates generally to a container of a collapsible type.for liquid or pulverulent contents and more specifically such a container, comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls, said walls comprising two opposite side walls with edge portions which engage each other and along which the side walls are joined in a common connecting portion, the compartment being sealed in the empty state of the container before filling.
  • the present invention also relates to a method for manufacturing such a container.
  • Containers of a first type described by way of introduction are usually available in a flat and sealed state before filling.
  • the side walls of the container lie flat against each other, whereby the volume of the compartment defined by the walls is essentially zero.
  • a container In filling, a container is opened and liquid contents are supplied to the compartment. As the liquid contents are being supplied to the compartment, the side walls will be moved from each other, thereby increasing the volume of the compartment defined by the walls and adjusting it to the volume of the contents. After completion of the filling, the container is sealed again.
  • the above type of container is particularly advantageous in that it can be sterilised in connection with manufacture, after which it can be distributed with maintained sterility to a user for aseptic filling of the containers with liquid contents.
  • a container described therein has a projecting duct means which is made of two interconnected projections of the side walls.
  • the duct means is sealed in the empty state of the container before filling.
  • the compartment defined by the walls of the container is thus completely closed and can therefore be sterilised, for example, by radiation.
  • the container In connection with filling, the container is opened in a sterile room by removing an outer end portion of the duct means, after which the container is filled under aseptic conditions by inserting a filling means into said duct means.
  • the filling means usually has a tapering shape and is terminated with a tip.
  • the filling means is inserted into the duct means with the tip facing the duct means, and as the filling means is being inserted into the duct means, the duct means is expanded. It is most important for air not to intrude into the container during the filling process, and therefore the filling means is designed so at to make it possible to sealingly insert the filling means into the duct means.
  • the main purpose of the duct means thus is to prevent air from intruding into the compartment during the filling process. Any intrusion of air in fact causes powerful frothing of the liquid contents, which frothing makes satisfactory filling of the container impossible.
  • the container must have a duct means which helps to prevent air from intruding during the filling process.
  • this duct means constitutes a difficulty in the manufacture of the container.
  • the projections included in the duct means make efficient utilisation of the film material from which the container is made difficult. More precisely, said projections contribute to considerable amounts of waste being generated, which for obvious reasons causes undesirable additional expenses.
  • a second type of container is known from, for instance, US 6,244,747 and GB 2,180,214.
  • the type of container described therein has a more material-saving configuration.
  • the type of container has however an upper edge which is open in the empty state before filling and through which contents can be supplied to the compartment of the container. After completing the filling process, the upper edge is sealed. It will be appreciated that there may be problems with air intruding into the container. The intrusion of air causes an increased risk of frothing during the filling process. Moreover, the filled and sealed container will hold a small volume of air, which has a detrimental effect on the shelf-life of the contents.
  • Document DE-A-1 586 766 upon which the preamble of claim 1 is based, discloses a pouch having a duct-defining portion 6 which is closed by a sealing seam after it is being filled.
  • an object of the present invention is to provide an improved container of a first type described by way of introduction.
  • Another object is to provide such a container, which can be manufactured with a minimum of waste while the container can still be filled with liquid contents without any risk of air intrusion.
  • a further object is to provide a method for manufacturing a corresponding container.
  • the weld joints are advantageously symmetrically arranged one on each side of a longitudinal centre line of the container and connect to the connecting portion on an upper side of the container. In this way a duct-defining portion is provided, which can be made on the container in connection with the forming of the same.
  • a method for manufacturing a container of a collapsible type for liquid or pulverulent contents, said container comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls.
  • the walls comprise two opposite side walls and the compartment is sealed in the empty state of the container before filling.
  • the method comprises the step of connecting edge portions, engaging each other, of the side walls in a common connecting portion.
  • the method is characterised by arranging a duct-defining portion inside said connecting portion, along which duct-defining portion said side walls are joined with each other, providing the duct-defining portion with two mutually separated weld joints which define a duct extended between the side walls.
  • the weld joints are arranged so as to define a duct extended between the side walls, which at a first end communicates with said compartment and which at a second end connects to and is sealed by a duct-sealing part of said connecting portion.
  • a duct 7 is obtained, through which filling of the compartment 3 of the container 1 is easily allowed.
  • This opening device may be arranged so that the container 1 will be resealable and may comprise, for instance, a screwable cap.
  • opening means described with reference to Fig. 4 may also be applied in the duct of a container according to that described with reference to Fig. 1. The opening means is then applied in the duct in a step after the duct has been used for filling of the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Basic Packing Technique (AREA)
  • Packages (AREA)
  • Making Paper Articles (AREA)
EP02724848A 2001-04-25 2002-04-19 Flexible container and method for manufacturing the same Expired - Lifetime EP1381548B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0101442 2001-04-25
SE0101442A SE523181C2 (sv) 2001-04-25 2001-04-25 Förpackning samt metod för framställning därav
PCT/SE2002/000766 WO2002085744A1 (en) 2001-04-25 2002-04-19 Flexible container and method for manufacturing the same

Publications (2)

Publication Number Publication Date
EP1381548A1 EP1381548A1 (en) 2004-01-21
EP1381548B1 true EP1381548B1 (en) 2005-03-30

Family

ID=20283869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02724848A Expired - Lifetime EP1381548B1 (en) 2001-04-25 2002-04-19 Flexible container and method for manufacturing the same

Country Status (9)

Country Link
US (1) US20040197030A1 (zh)
EP (1) EP1381548B1 (zh)
CN (1) CN1234581C (zh)
AT (1) ATE292064T1 (zh)
DE (1) DE60203487T2 (zh)
ES (1) ES2238570T3 (zh)
SE (1) SE523181C2 (zh)
TW (1) TW527308B (zh)
WO (1) WO2002085744A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2235567B1 (es) * 2002-09-10 2006-10-01 Juan Inazio Hartsuaga Uranga Bolsa de embalaje para conservar y distribuir productos granulados, pulverulentos o liquidos y procedimiento de fabricacion.
WO2007086969A2 (en) * 2005-10-27 2007-08-02 Pbm Products, Inc. Containers for powdered products
SE0700769L (sv) * 2007-03-28 2008-09-29 Ecolean Res & Dev As Rivanvisning
FR2966133B1 (fr) * 2010-10-18 2012-10-26 Bag2Pack Sarl Recipient souple pour liquide, procede de fabrication et de remplissage.
JP6859018B2 (ja) * 2015-02-24 2021-04-14 株式会社Ｍｉｚｋａｎ Ｈｏｌｄｉｎｇｓ 包装物品
JP2017013863A (ja) * 2015-07-02 2017-01-19 大日本印刷株式会社 包装袋及びその製造方法
JP6476424B2 (ja) * 2016-11-07 2019-03-06 東洋製罐株式会社 スパウト付きパウチ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976988A (en) * 1957-06-25 1961-03-28 William S Schneider Unit dispensing container
US2990101A (en) * 1959-05-01 1961-06-27 Dairy Containers Inc Bag for milk and the like
US3112047A (en) * 1960-11-01 1963-11-26 Cherry Burrell Corp Liquid-tight container
DE1586766A1 (de) * 1967-12-21 1970-05-21 Kalle Ag Beutelverpackung
GB2180214B (en) * 1985-09-03 1990-02-28 Unisystems Pvt Ltd Pouch for packaging and dispensing of a liquiduous material
DE8807593U1 (de) * 1988-06-10 1988-09-08 INDAG Gesellschaft für Industriebedarf mbH, 6900 Heidelberg Nachfüllbeutel
SE513561C2 (sv) * 1998-02-17 2000-10-02 Eco Lean Ab Behållare, sätt och anordning för att framställa en behållare samt sätt och anordning för att fylla en behållare
US6244747B1 (en) * 1999-09-30 2001-06-12 Cryovac, Inc. Contoured pouch with pourable spout, and apparatus and process for producing same

Also Published As

Publication number Publication date
TW527308B (en) 2003-04-11
SE0101442L (sv) 2002-10-26
CN1234581C (zh) 2006-01-04
ATE292064T1 (de) 2005-04-15
SE523181C2 (sv) 2004-03-30
CN1503754A (zh) 2004-06-09
US20040197030A1 (en) 2004-10-07
DE60203487T2 (de) 2005-09-08
DE60203487D1 (de) 2005-05-04
WO2002085744A1 (en) 2002-10-31
SE0101442D0 (sv) 2001-04-25
ES2238570T3 (es) 2005-09-01
EP1381548A1 (en) 2004-01-21

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