WO1989000535A1 - A drain means for the outlet opening of the spout of a collapsible bag of plastic film or laminated plastic films for use in a socalled bag-in-box package - Google Patents

A drain means for the outlet opening of the spout of a collapsible bag of plastic film or laminated plastic films for use in a socalled bag-in-box package Download PDF

Info

Publication number
WO1989000535A1
WO1989000535A1 PCT/DK1988/000114 DK8800114W WO8900535A1 WO 1989000535 A1 WO1989000535 A1 WO 1989000535A1 DK 8800114 W DK8800114 W DK 8800114W WO 8900535 A1 WO8900535 A1 WO 8900535A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
spout
drain means
outlet opening
plastic films
Prior art date
Application number
PCT/DK1988/000114
Other languages
French (fr)
Inventor
Erik Houmann Nielsen
Original Assignee
Otto Nielsen Emballage A/S
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 Otto Nielsen Emballage A/S filed Critical Otto Nielsen Emballage A/S
Priority to BR888807129A priority Critical patent/BR8807129A/en
Priority to NL8820495A priority patent/NL8820495A/en
Publication of WO1989000535A1 publication Critical patent/WO1989000535A1/en
Priority to GB8905485A priority patent/GB2219786A/en
Priority to SE8900851A priority patent/SE8900851L/en

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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • B65D77/065—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible 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
    • B65D2231/00—Means for facilitating the complete expelling of the contents
    • B65D2231/001—Means for facilitating the complete expelling of the contents the container being a bag
    • B65D2231/004—Means for facilitating the complete expelling of the contents the container being a bag comprising rods or tubes provided with radial openings, ribs or the like, e.g. dip-tubes, spiral rods

Definitions

  • the present invention relates to a drain means for the outlet opening in the spout of a collapsible bag of plastic film or laminated plastic films for use in a ⁇ ocalled bag-in-box package.
  • Bag-in-box packages are used increasingly for storage, shipment, distribution and bottling of liquid pro ⁇ ducts such as wine, soft drinks, chemicals and similar li ⁇ quids, or semi-liquid concentrates for making beverages, and consist of a bag made of plastic film or laminated plastic films containing the beverage, the beverage concen ⁇ trate or other liquid products and placed in a rigid box of cardboard, synthetic material or corrugated paperboard and provided with a spout at one end in which a tap may be inser ⁇ ted for partial or complete discharge of the liquid from the bag by gravity or by pumping.
  • liquid pro ⁇ ducts such as wine, soft drinks, chemicals and similar li ⁇ quids, or semi-liquid concentrates for making beverages
  • a bag made of plastic film or laminated plastic films containing the beverage, the beverage concen ⁇ trate or other liquid products and placed in a rigid box of cardboard, synthetic material or corrugated paperboard and provided with a spout at one end in which a tap may be inser ⁇
  • WO 85/04383 proposes an insert for a collapsible container with a spout member, and consisting of an attachment section by means of which the insert member can be mounted on the spout, and an elon ⁇ gate main section which is pivotally attached to the attach ⁇ ment section and having a continous liquid passage along its whole length, which passage being in fluid communication with the liquid inside the container.
  • the insert maintains a free channel for liquid flow from the inside of the container via the insert mem ⁇ ber to the spout.
  • this insert has the advantage that it can be attached to the spout and be placed in the con ⁇ tainer during the production thereof.
  • the present invention is based on another assump ⁇ tion of the cause of the above-mentioned general problem, namely that the main cause therefore being that in the partly or almost completely drained and collapsed state of the bag the wall of the bag opposite to the spout is sucked towards the outlet opening of the spout by the liquid flow and blocks it partly or completely so that liquid cannot escape freely through the spout or a tap mounted therein.
  • the object of the invention is, therefore, to overcome the problem thus defined by providing a drain means securing liquid passage between the spout and the opposite wall of the bag, also when the bag is partly or almost completely empty, as well as a drain means which can be mounted in the bag during the production thereof.
  • a drain means for the outlet opening of the spout of a collapsible bag of plastic film or laminated plastic films bag for a socalled bag-in-box package is characterized in that the drain means comprises at least one element which ex ⁇ tends a distance into the bag aligned with or around the outlet opening and defines at least one passage between the end of the said at least one element remote from the outlet opening and the outlet opening of the spout.
  • the drain means comprises a number of the said elements which between them define a number of the said passages.
  • the drain means may be a generally annular body surrounding the outlet opening of the spout, and the said passage or passages may pass through the circumferential walls of the body.
  • the drain means may be made of any material which is not affected by or affects the liquid in the bag, but plastic material is preferred.
  • the drain means may be attached to the spout, for example by a snaplock fit or adhesives, but it is preferred that it should be integrated with the spout, preferably so that the drain means and spout is one in ⁇ jection-moulded part, and it is also preferred that the drain means and the spout be injection-moulded of a plas ⁇ tic material, preferably polyethylene, which may be wel ⁇ ded to the plastic film material of the bag or to the inner layer of the laminated plastic films material.
  • a plas ⁇ tic material preferably polyethylene
  • Fig. 1 shows a perspective view " with parts cut away of a preferred embodiment of a drain means according to the invention made as a unit integral with the spout and placed inside the bag of a bag-in-box package, and
  • Fig. 2 shows with parts cut away an axial cross section through a means like the one shown in Fig . 1 placed in a bag-in-box package in which the bag is part ⁇ ly or almost completely empty.
  • Figs. 1 and 2 show a spout 1 of plastic material such as polyethylene with an outlet opening therethrough 3, which spout is secured sealingly by welding in a punched hole in a bag 5 made of plastic film or laminated plastic films.
  • the bag 5 is placed in a box 7 made of cardboard or corrugated paperboard so that the spout pro- jects from an opening 9 in the wall of the box 7-
  • the box 7 and the bag 5 with the spout 1 so far constitute a prior art bag-in-box package for liquids such as wine, soft drinks or beverage concentrates, and during shipment and storage the spout 1 of such a package may be sealed with a cap or plug (not shown) , while during discharge of liquid from the package there may sealingly be inser ⁇ ted e.g. " a tap (not shown) in the spout 1.
  • a drain means which is generally indicated by 11 , and which consists of a generally annular body 12 surrounding the outlet opening 3 of the spout 1.
  • the body 11 may be made integral with the spout 1 e.g. by injection moulding of the spout 1 and the body 11 to form one unit, or the body 12 may be secured to the spout 1 , e.g. with an ad ⁇ hesive or by a snap fit.
  • the body 12 consists of a number of elements 13 which extend a distance into the bag 5 around the out ⁇ let opening 3, and which between them defines a plurality of passages 15 between the end 17 remote from the outlet opening 3 of these elements 13 and the outlet opening 3.
  • the passages 15 will, even when the bag is partly or almost completely empty as shown in Fig. 2, and the wall of the bag opposite to the spout 1 engages the ends 17 of the elements 13, allow free flow throught the passages from the interior of the bag 5 to the outlet opening 3 of the spout 1 and prevent the wall of the bag 5 opposite to the spout.1 from blocking the liquid flow through the outlet 3.
  • the drain means 11 forms a unit with the spout 1 which during production of the bag 5 may be placed in a punched hole in the side wall of the bag and welded to it in one ope ⁇ ration so that no further process stages are required during production of the bag 5.
  • the drain means may simply consist of a pair of crossed steel wire bows, e.g. of stainless steel, which with outward bent ends are retained by a snaplock effect in a recess in the outlet opening of the spout.
  • the drain means may be in the form of a rigid rod or rods secured to a tap which is designed for insertion into the outlet opening of the spout and so that the rod or rods extends into the bag from the outlet opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)

Abstract

The drain means (11) includes at least one element (13) which extends a distance into the bag (5) aligned with or around the outlet opening (3) and defines at least one passage (15) between the end (17) of the outlet opening of the at least one element (13) farthest from the outlet opening and the outlet opening (3) of the spout (1). The wall of the bag (5) which is opposite to the outlet opening (3) of the spout (1) is thus prevented from being sucked across the bag when the bag (5) is partly or almost completely drained of liquid and, therefore, has collapsed. In this way the opposite wall of the bag does not cover the outlet opening (3) and prevent liquid flow therethrough.

Description

A drain means for the outlet opening of the spout of a collap¬ sible bag of plastic film or laminated plastic films for use in a socalled bag-in-box package.
The present invention relates to a drain means for the outlet opening in the spout of a collapsible bag of plastic film or laminated plastic films for use in a εocalled bag-in-box package.
Bag-in-box packages are used increasingly for storage, shipment, distribution and bottling of liquid pro¬ ducts such as wine, soft drinks, chemicals and similar li¬ quids, or semi-liquid concentrates for making beverages, and consist of a bag made of plastic film or laminated plastic films containing the beverage, the beverage concen¬ trate or other liquid products and placed in a rigid box of cardboard, synthetic material or corrugated paperboard and provided with a spout at one end in which a tap may be inser¬ ted for partial or complete discharge of the liquid from the bag by gravity or by pumping.
A general problem of these packages iε that when the bag i partly or almost completely empty and, therefore, has collapsed because of the vacuum built up, the continued discharge of liquid from the bag through the tap takes place slowly and apparently obstructed by the collapse of the bag .
One of the causes of this problem is thought to be that folds and creases are formed in the bag material during its collapse and that thus liquid pockets are formed in the bag from which liquid flows but slowly to the outlet opening of the spout.
To overcome this problem, WO 85/04383 proposes an insert for a collapsible container with a spout member, and consisting of an attachment section by means of which the insert member can be mounted on the spout, and an elon¬ gate main section which is pivotally attached to the attach¬ ment section and having a continous liquid passage along its whole length, which passage being in fluid communication with the liquid inside the container. When the walls of the container collapse during dis¬ charge, the insert maintains a free channel for liquid flow from the inside of the container via the insert mem¬ ber to the spout. Compared to other prior art arrangements for the same purpose this insert has the advantage that it can be attached to the spout and be placed in the con¬ tainer during the production thereof.
" The present invention is based on another assump¬ tion of the cause of the above-mentioned general problem, namely that the main cause therefore being that in the partly or almost completely drained and collapsed state of the bag the wall of the bag opposite to the spout is sucked towards the outlet opening of the spout by the liquid flow and blocks it partly or completely so that liquid cannot escape freely through the spout or a tap mounted therein.
The object of the invention is, therefore, to overcome the problem thus defined by providing a drain means securing liquid passage between the spout and the opposite wall of the bag, also when the bag is partly or almost completely empty, as well as a drain means which can be mounted in the bag during the production thereof.
According to the present invention, a drain means for the outlet opening of the spout of a collapsible bag of plastic film or laminated plastic films bag for a socalled bag-in-box package is characterized in that the drain means comprises at least one element which ex¬ tends a distance into the bag aligned with or around the outlet opening and defines at least one passage between the end of the said at least one element remote from the outlet opening and the outlet opening of the spout.
By these measures, one liquid passage is always established from the interior of the bag to the outlet opening of the spout. It is preferred that the drain means comprises a number of the said elements which between them define a number of the said passages.
The drain means may be a generally annular body surrounding the outlet opening of the spout, and the said passage or passages may pass through the circumferential walls of the body.
The drain means may be made of any material which is not affected by or affects the liquid in the bag, but plastic material is preferred.
The drain means may be attached to the spout, for example by a snaplock fit or adhesives, but it is preferred that it should be integrated with the spout, preferably so that the drain means and spout is one in¬ jection-moulded part, and it is also preferred that the drain means and the spout be injection-moulded of a plas¬ tic material, preferably polyethylene, which may be wel¬ ded to the plastic film material of the bag or to the inner layer of the laminated plastic films material.
In the following the invention will be explained more detailed with reference to the drawings, whereon
Fig. 1 shows a perspective view "with parts cut away of a preferred embodiment of a drain means according to the invention made as a unit integral with the spout and placed inside the bag of a bag-in-box package, and
Fig. 2 shows with parts cut away an axial cross section through a means like the one shown in Fig . 1 placed in a bag-in-box package in which the bag is part¬ ly or almost completely empty.
Figs. 1 and 2 show a spout 1 of plastic material such as polyethylene with an outlet opening therethrough 3, which spout is secured sealingly by welding in a punched hole in a bag 5 made of plastic film or laminated plastic films. The bag 5 is placed in a box 7 made of cardboard or corrugated paperboard so that the spout pro- jects from an opening 9 in the wall of the box 7- The box 7 and the bag 5 with the spout 1 so far constitute a prior art bag-in-box package for liquids such as wine, soft drinks or beverage concentrates, and during shipment and storage the spout 1 of such a package may be sealed with a cap or plug (not shown) , while during discharge of liquid from the package there may sealingly be inser¬ ted e.g."a tap (not shown) in the spout 1.
According to the invention, that side of the spout 1 facing the interior of the bag 5 has a drain means which is generally indicated by 11 , and which consists of a generally annular body 12 surrounding the outlet opening 3 of the spout 1.
As shown in the drawing, the body 11 may be made integral with the spout 1 e.g. by injection moulding of the spout 1 and the body 11 to form one unit, or the body 12 may be secured to the spout 1 , e.g. with an ad¬ hesive or by a snap fit.
The body 12 consists of a number of elements 13 which extend a distance into the bag 5 around the out¬ let opening 3, and which between them defines a plurality of passages 15 between the end 17 remote from the outlet opening 3 of these elements 13 and the outlet opening 3.
During discharge of liquid from the bag 5, the passages 15 will, even when the bag is partly or almost completely empty as shown in Fig. 2, and the wall of the bag opposite to the spout 1 engages the ends 17 of the elements 13, allow free flow throught the passages from the interior of the bag 5 to the outlet opening 3 of the spout 1 and prevent the wall of the bag 5 opposite to the spout.1 from blocking the liquid flow through the outlet 3.
It is an advantage of the embodiment shown and described of the drain means 11 according to the inven¬ tion that it forms a unit with the spout 1 which during production of the bag 5 may be placed in a punched hole in the side wall of the bag and welded to it in one ope¬ ration so that no further process stages are required during production of the bag 5.
Although the drain means according to the inven- tion is described above in connection with a preferred embodiment, it is evident that within the scope of the following patent claims it may be configured in other ways. For example, the drain means may simply consist of a pair of crossed steel wire bows, e.g. of stainless steel, which with outward bent ends are retained by a snaplock effect in a recess in the outlet opening of the spout. Similarly, the drain means may be in the form of a rigid rod or rods secured to a tap which is designed for insertion into the outlet opening of the spout and so that the rod or rods extends into the bag from the outlet opening.

Claims

1. A drain means (11) for the outlet opening (3) of the spout (1) of a collapsible bag (5) made of plastic films or laminated plastic films in a socalled bag-in-box package, characterized in that the drain means (11) includes at least one element (13) which ex¬ tends a distance into the bag (5) aligned with or around the outlet opening (3) and defines at least one passage (15) between the end (17) of the said at least one ele- ment (13) remote from the outlet opening (3) and the out¬ let opening (3) of the spout (1) .
2. A drain means as claimed in claim 1 , charac¬ terized in that the drain means (11) includes a plurality of the said elements (13) which between them define a plurali t of the said passages (15) .
3. A drain means as claimed in claims 1 or 2, characterized in that the drain means (11) is a general¬ ly annular body (12) which surrounds the outlet opening (3) of the spout (1), and that the said passage or pas- sages (15) pass through the circumferential walls of the body (12) .
4. A drain means as claimed in any of the pre¬ ceding claims, characterized in that the drain means (11) consists of a plastic material .
5. A drain means as claimed in any of the pre¬ ceding claims, characterized in that the means unit (11) is attached to the spout (1 ) .
6. A drain means as claimed in any of claims 1 to 4, characterized in that the drain means (11) is in- tegral with the spout (1) .
7. A drain means as claimed in claim 6, charac¬ terized in that the drain means (11) and the spout (1) is an injection-moulded component.
8. A drain means as claimed in claim 7, charac- terized in that the drain means (11) and the spout (1) are injection-moulded of a plastic material, preferably polyethylene, which is weldable to the plastic film ma¬ terial of the bag (5) or to the inner layer of the lami¬ nated plastic films material of the bag (5) .
PCT/DK1988/000114 1987-07-13 1988-07-07 A drain means for the outlet opening of the spout of a collapsible bag of plastic film or laminated plastic films for use in a socalled bag-in-box package WO1989000535A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR888807129A BR8807129A (en) 1987-07-13 1988-07-07 DRAIN FOR OPENING OUT OF THE NOZZLE OF A FLEXIBLE BAG
NL8820495A NL8820495A (en) 1987-07-13 1988-07-07 Drain means for the outlet opening of the bag of a bag which can bag plastic film or laminated plastic films for use in a so-called bag-in-box.
GB8905485A GB2219786A (en) 1987-07-13 1989-03-10 A drain means for the outlet opening of the spout of a collapsible bag of plastic film or laminated plastic films for use in socalled bag-in-box package
SE8900851A SE8900851L (en) 1987-07-13 1989-03-10 SLEEPING DEVICE FOR THE OUTPUT OPENING IN THE PIPE TO A VIOLABLE PAPER OF PLASTIC WRAP OR LAMINATED PLASTIC PAPERS FOR USE IN A PACKAGING CONTAINING OF AN EXTERNAL CONTAINER AND ONE IN THIS PROVIDED PAPER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK3634/87 1987-07-13
DK363487A DK363487A (en) 1987-07-13 1987-07-13 DRAEN ORGAN FOR THE RELEASE OPENING OF THE SPOUSE IN A SIMPLE PLASTIC WAVE OR PLASTIC WIN LAMINATE BAG FOR A SO-CALLED POSE-I CARTON PACKAGING

Publications (1)

Publication Number Publication Date
WO1989000535A1 true WO1989000535A1 (en) 1989-01-26

Family

ID=8125100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1988/000114 WO1989000535A1 (en) 1987-07-13 1988-07-07 A drain means for the outlet opening of the spout of a collapsible bag of plastic film or laminated plastic films for use in a socalled bag-in-box package

Country Status (10)

Country Link
EP (1) EP0324816A1 (en)
JP (1) JPH02500831A (en)
AU (1) AU1999088A (en)
BR (1) BR8807129A (en)
DK (1) DK363487A (en)
GB (1) GB2219786A (en)
NL (1) NL8820495A (en)
SE (1) SE8900851L (en)
SU (1) SU1667633A3 (en)
WO (1) WO1989000535A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026868A2 (en) * 1995-02-25 1996-09-06 Arlington Packaging Limited Bag for containing flowable material
EP0928749A1 (en) * 1998-01-06 1999-07-14 Nalco Chemical Company Outlet fitting and container having the same and method for handling a material

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU641001B2 (en) * 1990-04-11 1993-09-09 Dai Nippon Insatsu Kabushiki Kaisha Liquid container and mouth thereof
JP5593820B2 (en) * 2010-05-11 2014-09-24 凸版印刷株式会社 Bag-in-box spout
JP5707845B2 (en) * 2010-10-21 2015-04-30 凸版印刷株式会社 Outlet member

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081911A (en) * 1960-09-29 1963-03-19 Scholle Container Corp Drainage fitting for collapsible container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081911A (en) * 1960-09-29 1963-03-19 Scholle Container Corp Drainage fitting for collapsible container

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026868A2 (en) * 1995-02-25 1996-09-06 Arlington Packaging Limited Bag for containing flowable material
WO1996026868A3 (en) * 1995-02-25 1996-11-21 Arlington Packaging Ltd Bag for containing flowable material
GB2298185B (en) * 1995-02-25 1999-07-07 Arlington Packaging Ltd Discharging flowable material from bag containers
EP0928749A1 (en) * 1998-01-06 1999-07-14 Nalco Chemical Company Outlet fitting and container having the same and method for handling a material
US6098673A (en) * 1998-01-06 2000-08-08 Nalco Chemical Company Outlet fitting and container having the same and method for containing a material and draining and filling the same

Also Published As

Publication number Publication date
NL8820495A (en) 1989-06-01
AU1999088A (en) 1989-02-13
SE8900851D0 (en) 1989-03-10
BR8807129A (en) 1989-10-17
DK363487D0 (en) 1987-07-13
SE8900851L (en) 1989-03-10
EP0324816A1 (en) 1989-07-26
JPH02500831A (en) 1990-03-22
GB2219786A (en) 1989-12-20
GB8905485D0 (en) 1989-08-02
SU1667633A3 (en) 1991-07-30
DK363487A (en) 1989-01-14

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