US20120002906A1 - Packaging bag - Google Patents

Packaging bag Download PDF

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Publication number
US20120002906A1
US20120002906A1 US13/254,918 US201013254918A US2012002906A1 US 20120002906 A1 US20120002906 A1 US 20120002906A1 US 201013254918 A US201013254918 A US 201013254918A US 2012002906 A1 US2012002906 A1 US 2012002906A1
Authority
US
United States
Prior art keywords
packaging bag
discharge part
bag
bag according
folded
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.)
Abandoned
Application number
US13/254,918
Other languages
English (en)
Inventor
Daniel Bossel
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.)
Amcor Flexibles Kreuzlingen AG
Original Assignee
Amcor Flexibles Kreuzlingen AG
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 Amcor Flexibles Kreuzlingen AG filed Critical Amcor Flexibles Kreuzlingen AG
Publication of US20120002906A1 publication Critical patent/US20120002906A1/en
Assigned to AMCOR FLEXIBLES KREUZLINGEN LTD. reassignment AMCOR FLEXIBLES KREUZLINGEN LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOSSEL, DANIEL
Abandoned 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
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
    • B65D75/44—Individual packages cut from webs or tubes
    • B65D75/48—Individual packages cut from webs or tubes containing liquids, semiliquids, or pastes, e.g. cushion-shaped packages
    • B65D75/50—Tetrahedral packages
    • 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
    • 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
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element

Definitions

  • the invention relates to a tetrahedral packaging bag made of a flexible film material, which, in the region of a tetrahedron corner of the bag, forms a discharge part which projects from the bag, is substantially tubular and closed at its free end.
  • Tetrahedral packaging bags made of plastics material-coated cardboard for drinks are known.
  • the packaging bag is provided at one point, for example, with an opening, which is closed by a film which can be pierced by a drinking straw.
  • Other bags may be torn open to form a discharge along a peroration line.
  • tetrahedral packaging bags made of a flexible film material for chocolate sweets filled with a sugar paste are known.
  • a tearing notch which is arranged in a sealing seam is used for opening.
  • a tetrahedral packaging bag made from a flexible film material, which, in the region of a tetrahedron corner of the bag, forms a discharge part which projects from the bag, is substantially tubular and closed at its free end, is known from EP-A-1 547 935.
  • a substantial disadvantage of this bag is that the bag walls collapse or fold together in the region of the discharge part and thus constrict the discharge part or even close it and therefore strongly impede, in particular, the discharge of liquid and pourable bulk materials.
  • the invention is based on the object of providing a packaging bag of the type mentioned at the outset, with which liquid and pourable solid ingredients can be removed in a metered manner by way of a defined opening.
  • the solution according to the invention is achieved in that the opening cross section in the region of the transition from the bag into the discharge part is stabilised by a reinforcing element in the film material of the bag, which extends transverse to a discharge direction pointing away from the tetrahedron corner.
  • the reinforcing element is preferably formed by a folded seam consisting of the film material and projecting from a tetrahedron face of the bag, the folded seam expediently being formed by sealing the film material to itself.
  • the reinforcing element may also be formed by a rib, which is applied to the film material, made of a plastics material, such as, for example an adhesive or hotmelt. Further possibilities are, for example, a reinforcing embossing or a reinforcing material application of, for example, a printing ink.
  • the reinforcing element preferably has a substantially linear course.
  • the reinforcing element may have a straight or curved course.
  • the reinforcing element may also be constructed from substantially point-shaped elements.
  • the tubular discharge part preferably has a partial sealing seam extending substantially parallel to the discharge direction and passing in the region of the tetrahedron corner of the bag into a sealing seam of the bag, and the reinforcing element runs in a tetrahedron face opposing the sealing seams.
  • the discharge part expediently has at least one tearing notch extending transverse to the discharge direction.
  • the tearing notch may pass into a weakening line running round the discharge part.
  • the discharge part can expediently be folded or tilted and preferably fixed by means of an adhesive on the bag in the folded-over or tilted position.
  • the discharge part may also be fixed to the bag and reclosed in the folded-over or tilted position by means of a strip, which is glued or sealed in between the bag wall and discharge part, with an integrated permanent adhesive layer.
  • the discharge part projecting according to the invention from a tetrahedron corner of the bag may, for example, be folded back against one of the bag faces when the packaging bag is unopened, and fixed in the folded-over position by means of an adhesive arranged on the bag face or on the discharge part.
  • the discharge part is thus relatively well protected against mechanical damage.
  • the discharge part may also be formed by sealing regions into a narrowed discharge channel, optionally with a valve action.
  • the discharge part may be narrowed by sealing regions into a through-opening with a valve action.
  • the through-opening is preferably configured as a slot, which can be widened when pressure is exerted on the bag by the filling product and which automatically closes without pressure.
  • the preferred filling products for the packaging container according to the invention include drinks of all types and pourable solids such as, for example, maize, semolina and granular food of this type as well as washing powder.
  • FIG. 1 shows the continuous production of packaging bags as tubular bags with a longitudinal sealing seam
  • FIG. 2 shows an enlarged detail of FIG. 1 ;
  • FIG. 3 shows the plan view of a packaging bag produced by the method according to FIG. 1 ;
  • FIG. 4 shows the side view of the packaging bag of FIG. 3 in the viewing direction X;
  • FIG. 5 shows the view of the lower side of the packaging bag of FIG. 3 ;
  • FIG. 6 shows the side view of a discharge part with a valve action
  • FIG. 7 shows the side view of a folded-over discharge part
  • FIG. 8 shows a section through the folded-over discharge part of FIG. 7 along the line I-I.
  • a film strip 32 which is provided to produce tetrahedral packaging bags 10 is unrolled from a supply roll 34 and continuously formed in a known manner with the formation of a longitudinal sealing seam 12 into a tube 13 in a device which is not shown in more detail.
  • the filling product can be poured in in the arrow direction A.
  • the film tube 13 runs in the horizontal direction in the drawing, it is readily understandable for the tube to be guided vertically when liquid or pourable filling products are poured in.
  • a second transverse sealing seam 16 closing the packaging container is also provided, in each case, respective consecutive transverse sealing seams 14 , 16 being arranged rotated through an angle of 90° with respect to one another, forming a tetrahedron.
  • one of the transverse sealing seams in each case, is placed in such a way that a discharge part 20 is produced in the region of one of the formed tetrahedron corners 18 .
  • the second transverse sealing seam 16 which is located in the plane of the longitudinal sealing seam 12 initially extends in a first partial region 16 a corresponding to the desired tetrahedron shape.
  • a first seam region 16 a extends in the region of the container corner 18 in the discharge direction y of the discharge part 20 , which is thus formed in a tubular manner.
  • a second partial region 16 b of the second transverse sealing seam 16 extends substantially parallel to the original seam direction and is used to close the discharge part 20 tapering here at the free end 22 thereof.
  • the discharge parts 20 , 20 ′ of two consecutive packaging bags 10 , 10 ′ are in each case directed toward one another and, between the corresponding transverse sealing seams 16 , 16 ′, a film portion 17 is produced, which, once the two packaging bags 10 , 10 ′ have been separated along a separation line s, is discarded.
  • other mutual arrangements of the discharge parts of two consecutive packaging bags are also possible during the production of the tubular bags.
  • the packaging bags 10 which are formed between consecutive transverse sealing seams 14 , 16 are separated in a cutting device, not shown. An individual packaging bag 10 is shown in FIGS. 3 to 5 .
  • a folded seam 30 which is formed in the film material of the bag 10 extends in the region of the transition from the bag 10 into the discharge part 20 transverse to the discharge direction y pointing away from the tetrahedron corner 18 .
  • This folded seam 30 is produced in that film material is sealed against itself, forming a sealing seam.
  • the opening cross section in the region of the transition from the bag 10 into the discharge part 20 is stabilised by this reinforcement.
  • the folded seam 30 is arranged in a tetrahedron face 36 , which extends, as part of the tubular discharge part 20 , substantially parallel to the discharge direction y, and opposes the second transverse sealing seam 16 and the partial sealing seam 16 a.
  • a diaphragm valve 37 is sealed in the tetrahedron face 36 .
  • a diaphragm valve 37 of this type may, for example, be necessary if the bag 10 is used as packaging for coffee present in the form of beans or in ground form. In this case, a gas pressure building up in the interior of the bag is counteracted in that gases can escape to the outside.
  • the diaphragm valve 37 prevents a passage of gas, for example of oxygen, from the outside to the inside.
  • the diaphragm valve 37 is sealed, for example before the formation of a tube, at a predetermined point on the film strip 32 ( FIG. 1 ).
  • the folded seam 30 runs in a straight line on the outside of the bag.
  • a folded seam 30 ′ with a curved course is shown by dashed lines.
  • the course of the folded seam 30 , 30 ′ may, however, have any desired form and depends on the product to be filled.
  • the folded seam 30 , 30 ′ may also be provided on the inside of the bag 10 .
  • a further possibility is to press film material with a tool from the outside to the inside and to seal it as an inwardly directed folded seam.
  • a folded seam 30 , 30 ′ it is, for example, also possible to apply a rib made of plastics material as a reinforcing element in molten form to the outside or inside of the bag 10 .
  • the material used for the rib may, for example, be an adhesive or a hotmelt.
  • Further possibilities for local reinforcement are produced, for example with an embossing or by the use of a reinforcing printing dye.
  • the reinforcing element in the form of a folded seam 30 , 30 ′ or a plastics material rib arranged with a corresponding course is preferably provided simultaneously with the production of the bag.
  • a through-opening 42 with a type of valve action may be arranged in the discharge part according to FIG.
  • sealing regions 38 , 40 are, for example, arranged in such a way that a slot is produced as the through-opening 42 , which is firstly opened by pressure on the bag and allows filling product through. When the pressure is removed, the slot closes automatically and prevents filling product from escaping.
  • the discharge part 20 may be tilted or folded over about an axis e transverse to the discharge direction y.
  • an adhesive 28 is provided, which is arranged in the present example in the form of an adhesive strip on the discharge part 20 .
  • a strip 50 with an integrated permanent adhesive layer 44 may also be glued or sealed in between the turned-over discharge part 20 and bag wall 49 .
  • the strip 50 for example, consists of two outer layers 46 , 48 made of a polyolefin, such as polyethylene, with the permanent adhesive layer 44 , which is arranged between the two outer layers 46 , 48 and may consist, for example, of a hotmelt.
  • the bag 10 can thus be made reclosable by a simple material selection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
US13/254,918 2009-03-09 2010-02-17 Packaging bag Abandoned US20120002906A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09405044A EP2228315A1 (de) 2009-03-09 2009-03-09 Verpackungsbeutel
EP09405044.0 2009-03-09
PCT/EP2010/000969 WO2010102710A1 (de) 2009-03-09 2010-02-17 Verpackungsbeutel

Publications (1)

Publication Number Publication Date
US20120002906A1 true US20120002906A1 (en) 2012-01-05

Family

ID=40749237

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/254,918 Abandoned US20120002906A1 (en) 2009-03-09 2010-02-17 Packaging bag

Country Status (3)

Country Link
US (1) US20120002906A1 (de)
EP (2) EP2228315A1 (de)
WO (1) WO2010102710A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020007012A (ja) * 2018-07-10 2020-01-16 株式会社フジシール 角錐包装体
USD896633S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container
USD896634S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container
JP2021534045A (ja) * 2018-08-21 2021-12-09 イリノイ トゥール ワークス インコーポレイティド 折り畳みシール可撓性バルブ

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011106994U1 (de) * 2011-10-21 2013-01-22 Bischof + Klein Gmbh & Co. Kg Verpackungsbehältnis
EP2644529A1 (de) 2012-03-30 2013-10-02 Kraft Foods R & D, Inc. Verpackung für ein flüssig abgefülltes, verfestigtes Lebensmittel, Herstellungsverfahren und Öffnungsverfahren
CN103241442A (zh) * 2013-05-24 2013-08-14 吴江市董鑫塑料包装厂 一种机用洗衣粉包装袋

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974732A (en) * 1990-02-02 1990-12-04 S. C. Johnson & Son, Inc. Sealed pouch having tear-open spout
US20040045842A1 (en) * 1998-05-29 2004-03-11 Naoto Matsuda Pouch having a branched chamber
US20060182370A1 (en) * 2003-04-01 2006-08-17 Eric Risgalla Flexible liquid container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5378065A (en) * 1993-12-30 1995-01-03 Tobolka; Stefan Container
EP1547935B1 (de) 2003-12-23 2007-10-24 Alcan Technology & Management Ltd. Verfahren zur Herstellung von Verpackungsbeuteln
WO2007089621A1 (en) * 2006-01-27 2007-08-09 The Procter & Gamble Company Packaging bag with pour spout
JP5082279B2 (ja) * 2006-04-07 2012-11-28 東洋製罐株式会社 パウチ容器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974732A (en) * 1990-02-02 1990-12-04 S. C. Johnson & Son, Inc. Sealed pouch having tear-open spout
US20040045842A1 (en) * 1998-05-29 2004-03-11 Naoto Matsuda Pouch having a branched chamber
US20060182370A1 (en) * 2003-04-01 2006-08-17 Eric Risgalla Flexible liquid container

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020007012A (ja) * 2018-07-10 2020-01-16 株式会社フジシール 角錐包装体
JP2021534045A (ja) * 2018-08-21 2021-12-09 イリノイ トゥール ワークス インコーポレイティド 折り畳みシール可撓性バルブ
USD896633S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container
USD896634S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container

Also Published As

Publication number Publication date
EP2406148A1 (de) 2012-01-18
EP2228315A1 (de) 2010-09-15
WO2010102710A1 (de) 2010-09-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMCOR FLEXIBLES KREUZLINGEN LTD., SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOSSEL, DANIEL;REEL/FRAME:027971/0744

Effective date: 20111024

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION