US20080277459A1 - Package Forming At Least One Pocket - Google Patents

Package Forming At Least One Pocket Download PDF

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Publication number
US20080277459A1
US20080277459A1 US11/910,355 US91035506A US2008277459A1 US 20080277459 A1 US20080277459 A1 US 20080277459A1 US 91035506 A US91035506 A US 91035506A US 2008277459 A1 US2008277459 A1 US 2008277459A1
Authority
US
United States
Prior art keywords
package
film
face
connecting lines
weakening
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
US11/910,355
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English (en)
Inventor
Nicolas Lenoir
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 Transpac BVBA
Original Assignee
Amcor Flexibles Transpac BVBA
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 Transpac BVBA filed Critical Amcor Flexibles Transpac BVBA
Assigned to AMCOR FLEXIBLES TRANSPAC N.V. reassignment AMCOR FLEXIBLES TRANSPAC N.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LENOIR, NICOLAS
Publication of US20080277459A1 publication Critical patent/US20080277459A1/en
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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • 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
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding

Definitions

  • the present invention relates to a package forming at least one pocket delimited by at least one flexible film having two principal faces which are connected to one another along at least two opposing transverse connecting lines which delimit the said pocket between them.
  • each principal face has a weakened line which allows the upper end of the package to be removed entirely by tearing it simultaneously along the two weakened lines.
  • the two weakened lines are disposed at the same level along the length of the package and meet along the welded longitudinal edges of the package.
  • Such a method of opening is relatively inconvenient for the user because it is necessary to grip the film on either side of the opening region in order to have a hold on the film and to exert a force on it.
  • the object of the invention is to propose a package in which opening is made easier.
  • the invention relates to a package as defined in Claim 1 .
  • FIG. 1 shows a perspective view of a closed package according to the invention
  • FIG. 2 shows a sectional view of the package of FIG. 1 along the central longitudinal section line II-II, the package being closed;
  • FIGS. 3 and 4 show views identical to that of FIG. 2 during successive phases of opening.
  • FIG. 5 shows a perspective view of the package of FIG. 1 during the final phase of opening.
  • the package illustrated in FIGS. 1 and 2 in its closed state is intended for example to contain food products P. It is formed from one single flexible film 12 made from polymers.
  • the film 12 is folded back on itself at a lower end of the package in order to form a front face 14 and a rear face 16 which are connected to one another by a transverse connecting line 18 formed by a fold of the film on itself.
  • the fold 18 is welded on itself in order to be flattened.
  • the faces 14 and 16 are welded to one another at their end opposite the connecting line 18 by another transverse connecting line 20 .
  • the connecting lines 18 and 20 extend substantially parallel to one another.
  • the length of the front face 14 measured between the transverse connecting lines 18 , 20 is less than the length of the rear face 16 measured between these same lines.
  • front face 14 and the rear face 16 are connected to one another by longitudinal welds 22 , 24 extending parallel to one another and connecting the two transverse connecting lines 18 and 20 in order to form an initially closed package.
  • the film 12 delimits between the two longitudinal welds 22 , 24 a package body 26 in which the products P to be packaged are contained.
  • the rear face 16 of greater length has a fold 30 which is more easily visible in FIG. 3 and of which the length corresponds to double the difference in length between the front and rear faces.
  • the fold 30 is formed from a folding line 32 formed at the top of the fold.
  • the two front and rear faces 14 and 16 form a flap 34 where they extend strictly parallel to one another.
  • the flap 34 is capable of being received on the outer surface of the front face 14 .
  • a folding line 36 is formed transversely on the front face 14 .
  • the faces 14 and 16 are connected by a weld formed at their ends at the location of the connecting line 18 . If the package is formed from one single sheet, the connecting line 20 is then formed solely from one fold which if necessary can be flattened by a weld.
  • connection between the two ends of the film forming the faces 14 , 16 is effected along the connecting line 32 , and folds, which may be finished off by welds, are only formed at the level of the lines 18 and 20 .
  • the two ends of the film are welded to one another in the current part of the face 14 or in the current part of the face 16 .
  • the package is formed from a plurality of films welded to one another.
  • one film is used to form the face 16 and the upper surface of the flap 34 whilst another film constitutes the face 14 and the outer surface of the flap 34 .
  • the front face 14 has an area 40 of more or less substantial width designated by a transverse weakened line which extends over all or part of the width of the face from a longitudinal weld 22 to the opposing longitudinal weld 24 .
  • this weakened line extends to the immediate vicinity of the folding line 36 in a region of the front face 14 covered by the flap 34 .
  • the weakened line 40 is provided facing the fold 30 and therefore along the folding line 36 or in the vicinity thereof.
  • FIG. 2 shows an advantageous position of the line 40 whilst FIG. 3 shows the ideal position.
  • opening of the package can be achieved in the central part of the package but is difficult or impossible in the vicinity of the longitudinal welds 22 and 24 .
  • This weakened line 40 is formed by treatment of the film 12 .
  • the treatment is applied before the shaping of the package whilst the film is in the course of manufacture, during the operation of winding onto a reel.
  • this weakening could equally be made during, before or after the different steps intended to obtain the finished product with the product P packaged.
  • the weakened line 40 is produced by application of high-energy radiation, such as a laser, applying a high-energy beam along the course of the line which is to be weakened.
  • This high-energy treatment is carried out on one or several layers of the film when the film comprises more than one layer.
  • the weakened line 40 is formed by a mechanical weakening of the film which extends along the course of the weakened line. This mechanical treatment is carried out along one or several of the layers of the film when the film comprises more than one layer.
  • microporous weakening is carried out in order to form the weakened line.
  • Such microporous treatment is carried out for example by passing the film, or a layer of the film when the film comprises several layers, between two rollers, one of the rollers having a surface which has been rendered abrasive in the zone which is to be applied to the line to be weakened.
  • Such treatment is described for example in the document FR-2 717 449.
  • the mechanical weakening is obtained by cutting or stamping partially or completely the thickness of one or several layers of the film when the film comprises more than one layer. These cuts or stampings are formed by applying a die with cutting blades along the weakened line. During the treatment, the film is pressed between the die and a support, as is known per se. Thus the part which is cut or partially cut is formed of perforations.
  • the weakened line 40 is formed by a microperforated region which does not pass completely through the film but reduces the resistance to rupture of the film in the treated zone. These microperforations can penetrate only through one of the layers of the film when the film comprises several layers.
  • a combination of the weakening treatments described above can be carried out on one and the same film, either on one and the same layer of the film or on different layers of the film if the film comprises more than one layer.
  • the film comprises a plurality of laminated or co-extruded polymer layers.
  • it has a support layer associated with a sealing layer, a connecting layer being disposed between these two layers in order to connect them over their entire surface.
  • the sealing layer forms the inner layer of the package.
  • the support layer has a weakened area made by high-energy radiation and in particular a laser beam. It is equally possible to use mechanical cutting (rotary cutter/blades/etc. . . . ) of the support layer before it is joined to the sealing layer.
  • the welding layer does not receive any weakening treatment.
  • a weakening treatment is provided along the course of the weakened line 40 in the welding layer.
  • This treatment preferably consists of rendering the welding layer fragile along the course of the weakened line 40 , particularly by passing the welding layer between two rollers, one of which is abrasive, in order to roughen one of the surfaces of the welding layer.
  • This surface is advantageously disposed on the side of the connecting layer.
  • the force of rupture on tearing of the film 12 along the weakened line 40 is preferably between 3 N/15 mm and 50 N/15 mm, that is to say that it is appropriate to apply a force of 3 N to 50 N transversely with respect to a weakened line 40 having a length of 15 mm in order to obtain rupture of the membrane along the weakened line. It is preferably between 4 N/15 mm and 40 N/15 mm.
  • composition of the film and the treatments carried out can adjust the rupture as a function of the tearing force chosen.
  • the longitudinal welds 22 and 24 extend along the package body 26 , the fold 30 and the flap 34 between the inner surfaces of the film in such a way that the welds 22 and 24 comprise three welded sections converging at one and the same point denoted 42 in FIG. 1 and disposed in the region of articulation between the package body 26 , the fold 30 and the flap 34 .
  • the film 12 is preferably formed from a material comprising a plurality of layers, the layer forming the inner surface of the package constituting a sealing layer capable of being welded to itself, whilst the layer forming the outer surface of the package is a non-sealing layer, that is to say a layer of which the welding temperature is higher than the welding temperature of the layer forming the inner surface.
  • tie film 14 is made from oriented polyamide or polyester for the outer layer and polyethylene for the inner layer.
  • the flap 34 is tilted and brought substantially into an extension of the body of the pocket at the location initially occupied by the fold 30 . In this position then the package is in the configuration illustrated in FIG. 3 .
  • the operator exerts traction in opposite directions. Taking into account the difference in length between the front face 14 and the rear face 16 , the force exerted by the operator is exerted solely on the front face 14 .
  • the film breaks at a point on this line 40 and the break spreads progressively along the length of this line until the two longitudinal welds 22 , 24 are reached, as illustrated in FIGS. 4 and 5 or simultaneously along the entire weakened line.
  • the flap 34 after initial opening, when the package is left free the flap 34 returns by itself to the position where it lies flat on the front face 14 due to the spring effect conferred by the lateral welds 22 , 24 . Thus the flap 34 comes to cover the aperture 50 , the weakened line 40 being initially below the flap 34 .
US11/910,355 2005-03-29 2006-03-29 Package Forming At Least One Pocket Abandoned US20080277459A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05290696.3 2005-03-29
EP05290696A EP1707497B1 (en) 2005-03-29 2005-03-29 Package forming at least one pocket
PCT/IB2006/000707 WO2006103525A1 (en) 2005-03-29 2006-03-29 Package forming at least one pocket

Publications (1)

Publication Number Publication Date
US20080277459A1 true US20080277459A1 (en) 2008-11-13

Family

ID=35429258

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/910,355 Abandoned US20080277459A1 (en) 2005-03-29 2006-03-29 Package Forming At Least One Pocket

Country Status (13)

Country Link
US (1) US20080277459A1 (es)
EP (1) EP1707497B1 (es)
AT (1) ATE374720T1 (es)
AU (1) AU2006228392A1 (es)
CA (1) CA2601511A1 (es)
DE (1) DE602005002729T2 (es)
DK (1) DK1707497T3 (es)
ES (1) ES2294653T3 (es)
NZ (1) NZ561239A (es)
PL (1) PL1707497T3 (es)
PT (1) PT1707497E (es)
SI (1) SI1707497T1 (es)
WO (1) WO2006103525A1 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150050414A1 (en) * 2012-01-06 2015-02-19 Amcor Flexibles France Packaging sheet, packaging and associated manufacturing method
USD896634S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container
USD896633S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5123551B2 (ja) 2007-04-10 2013-01-23 ユニ・チャーム株式会社 個包装体
NL2004489C2 (nl) * 2010-03-31 2011-10-04 Johnson Yacoub Verpakkingsmateriaal en werkwijze voor het vervaardigen ervan en product voorzien van het verpakkingsmateriaal.
GB2559734A (en) * 2017-02-08 2018-08-22 Coveris Flexibles Uk Ltd A method of producing a bag

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768725A (en) * 1971-11-11 1973-10-30 Nat Distillers Chem Corp Breathable, sterilizable and peelable pouch and method of manufacture thereof
US3790744A (en) * 1971-07-19 1974-02-05 American Can Co Method of forming a line of weakness in a multilayer laminate
US4709399A (en) * 1983-08-25 1987-11-24 Beiersdorf A.G. Opening facilitating closure tape and container
US4786190A (en) * 1986-08-11 1988-11-22 Minigrip, Inc. Reclosable package having outer reclosable closure and inner non-reclosable closure
US5102234A (en) * 1991-03-25 1992-04-07 Abner Levy Multi-pocket bag for medical specimen
US20030089625A1 (en) * 1999-12-14 2003-05-15 Moodie Malcolm Melsetter Containers and medthod for manufacturing containers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT380666B (de) * 1980-04-16 1986-06-25 Sticht Walter Verpackungsfolie, insbesondere fuer nahrungsmittel
FR2749278B1 (fr) * 1996-05-28 1998-08-21 Taylor Gregory Sachet refermable a usages repetes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790744A (en) * 1971-07-19 1974-02-05 American Can Co Method of forming a line of weakness in a multilayer laminate
US3768725A (en) * 1971-11-11 1973-10-30 Nat Distillers Chem Corp Breathable, sterilizable and peelable pouch and method of manufacture thereof
US4709399A (en) * 1983-08-25 1987-11-24 Beiersdorf A.G. Opening facilitating closure tape and container
US4786190A (en) * 1986-08-11 1988-11-22 Minigrip, Inc. Reclosable package having outer reclosable closure and inner non-reclosable closure
US5102234A (en) * 1991-03-25 1992-04-07 Abner Levy Multi-pocket bag for medical specimen
US20030089625A1 (en) * 1999-12-14 2003-05-15 Moodie Malcolm Melsetter Containers and medthod for manufacturing containers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150050414A1 (en) * 2012-01-06 2015-02-19 Amcor Flexibles France Packaging sheet, packaging and associated manufacturing method
US11642867B2 (en) * 2012-01-06 2023-05-09 Amcor Flexibles France Packaging sheet, packaging and associated manufacturing method
USD896634S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container
USD896633S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container

Also Published As

Publication number Publication date
NZ561239A (en) 2009-09-25
PL1707497T3 (pl) 2008-07-31
DE602005002729T2 (de) 2008-07-17
ATE374720T1 (de) 2007-10-15
CA2601511A1 (en) 2006-10-05
SI1707497T1 (sl) 2008-02-29
DK1707497T3 (da) 2007-12-10
PT1707497E (pt) 2008-02-12
ES2294653T3 (es) 2008-04-01
EP1707497B1 (en) 2007-10-03
EP1707497A1 (en) 2006-10-04
WO2006103525A1 (en) 2006-10-05
AU2006228392A1 (en) 2006-10-05
DE602005002729D1 (de) 2007-11-15

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Date Code Title Description
AS Assignment

Owner name: AMCOR FLEXIBLES TRANSPAC N.V., BELGIUM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LENOIR, NICOLAS;REEL/FRAME:020934/0942

Effective date: 20070309

STCB Information on status: application discontinuation

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