EP1500601A1 - Reclosable packaging bag and production method thereof - Google Patents
Reclosable packaging bag and production method thereof Download PDFInfo
- Publication number
- EP1500601A1 EP1500601A1 EP03447198A EP03447198A EP1500601A1 EP 1500601 A1 EP1500601 A1 EP 1500601A1 EP 03447198 A EP03447198 A EP 03447198A EP 03447198 A EP03447198 A EP 03447198A EP 1500601 A1 EP1500601 A1 EP 1500601A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- packaging
- strip
- reclosable
- extensible
- 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.)
- Withdrawn
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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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/1616—Elements constricting the neck of the bag
- B65D33/165—Flexible elongated elements integral with or attached to bags or sacks ; Fastening thereof to the bag before closing
Definitions
- Herrington in US patent 4,913,560 discloses an adhesive coated plastic tape welded on the outside of a plastic bag and protected by a brittle coating material.
- the tape is manually stretched causing the brittle coating to crack and separate, exposing the adhesive.
- the tape is then wrapped around the neck of the bag to close it.
- Fig.6 shows the opened bag with torn off piece of the bag with attached strip.
- Fig.7 shows the stretching (elongation) of the extensible strip needing therefore good elongation and plasticity characteristicss.
- Fig.13 shows where the opening initiation, including the extensible strip in the upper cross seal of the bag, is removed with the whole upper part of the bag while said strip and upper part remains connected to the original bag.
Abstract
The present invention relates to a reclosable packaging bag (1)
comprising, inside its cross and/or longitudinally sealed ends and/or
inside the bag an extensible strip (4) of high plasticity appearing only
after the opening of said bag, said strip having a substantially
irreversible extensibility to a multiple of his original length,
sufficient to enable said strip to reclose said packaging by turning it
at least once around said bag.
Description
- The present invention is related to a reclosable packaging bag, usually but not exclusively, produced in a vertical and/or horizontal form, fill and seal process (VFFS/HFFS) and to a method for its production.
- Sealed plastic and coated paper bags are widely used in various application fields. In general, only part of their contents are used immediately upon the initial opening. Therefore a strong request for reclosable packaging bags, in particular for frozen goods, exists.
- A lot of ideas to reclose a bag have been disclosed in the literature. Well known examples by those skilled in the art are plastic zipper or pressure sensitive tape at the top open neck of a bag. Most of these known solutions suffer from cost point of vue, in particular for cheap one-way food packaging such as those produced in high capacity vertical or horizontal form, fill and seal packaging machines (VFFS/HFFS).
- Herrington in US patent 4,913,560 discloses an adhesive coated plastic tape welded on the outside of a plastic bag and protected by a brittle coating material. In use, the tape is manually stretched causing the brittle coating to crack and separate, exposing the adhesive. The tape is then wrapped around the neck of the bag to close it.
- Burke in the
document WO 00/73162 A1 discloses a reclosable bag comprising towards its closed ends a fixed elastic strip with an extensibility sufficient to enable it to be stretched and to make a turn around the longest dimension of the bag when filled. The elastic strip is a rubber material with reversible elastomeric behaviour and low plasticity fixed outside the bag. The elastic strip can only be turned once around the reclosable bag. - For the purpose of facilitating and understanding of the present invention, there is illustrated in the accompanying figures 1 to 10 and 12,13 several views of bags or parts thereof, from an inspection of which, when considered in connection with the following description, the invention and many of its advantages should be readily understood and appreciated.
- Fig.1 and Fig.2 show respectively the front side and the backside of a VFFS bag with an extensible strip fixed at his ends at the inside of the bag in the cross seal area.
- Fig.3 shows four-side seal VFFS bag with an extensible strip sealed at his ends at the inside of the bag in the cross seal area.
- Fig.4 shows the front side of a bag with an extensible strip sealed at his ends at the inside of the bag in the cross seal area, said strip being longer than the cut-off of the bag.
- Fig.5 shows same as Fig.1 with a laser perforation as opening initiation and/or as tear guide.
- Fig.6 shows the opened bag with torn off piece of the bag with attached strip.
- Fig.7 shows the stretching (elongation) of the extensible strip needing therefore good elongation and plasticity caracteristics.
- Fig.8 shows the stretched strip rolled around the opened bag.
- Fig.9 shows the elongated strip rolled around the opened bag and torn off piece of the bag under the strings of the rolled around strip.
- Fig.10 shows the elongated strip rolled around "the neck" of opened bag and torn off piece of the bag under the strings of the rolled strip.
- Fig.11 is a schematic representation of a VFFS packaging machine with the extensible strip fed between form shoulder/filling pipe and bag packaging material.
- Fig.12 shows a particular embodiment of the present invention wherein the opening initiation, including the extensible strip in the upper cross seal of the bag, is not identical with the opening initiation of the bag destined to remove the content of the bag.
- Fig.13 shows where the opening initiation, including the extensible strip in the upper cross seal of the bag, is removed with the whole upper part of the bag while said strip and upper part remains connected to the original bag.
- The aim of the present invention is to disclose a reclosable pack obtainable for example by a vertical and/or horizontal form, fill and seal process without major accommodations of the pack machinery and without a major cost increase of the final pack.
- Another aim of the present invention is to disclose a packaging wherein the tearable part of the bag remains connected to the original bag after opening it to avoid waste management problems.
- The present invention discloses a reclosable packaging bag comprising inside its cross and/or longitudinal sealed ends and/or inside the bag an extensible strip of high plasticity appearing only after the opening of said bag, said strip having a substantially irreversible extensibility to a multiple of its original length, sufficient to enable said strip to reclose said packaging by turning it at least once around said bag.
- According to a first aspect of the present invention the strip is heat sealed and/or glued in the cross seals and/or in the longitudinal seals.
- According to a second aspect of the present invention the extensible strip is heat sealed and/or glued in the cross seals at both ends of said strip.
- A key advantage of the present invention is that the packaging comprises an opening initiation allowing to tear a part of the packaging and that said torn off part of said packaging is still attached to said extensible strip after opening said bag.
- Another key aspect of the present invention is that the packaging comprises an opening initiation to tear a part of the packaging and that said torn off part of said packaging is a part of said extensible strip.
- A particular embodiment of this invention is that the packaging comprises an opening initiation to tear out the extensible strip in the upper cross seal of the bag which is not identical with the opening initiation of the bag destined to open the bag in order to remove the content of the bag.
- According to the present invention, the packaging is a plastic and/or paper bag or a combination of it.
- Finally the present invention discloses a method for the production of a reclosable packaging bag characterised in that an extensible strip of high plasticity is heat sealed inside or in the seams of said bag during a vertical and/or horizontal form, fill and seal process.
- The reclosable packaging of the present invention can be produced on common horizontal and/or vertical form, fill and seal processing machines by adding to the normal packaging material an
extensible strip 4 of high plasticity running at the inside of thepackaging material 1. The principle of such machinery is shown in Fig.11. Non limitative examples of packaging materials are films of polyolefins, polyesters, polyamides, PVC, polystyrene, their copolymers and blendings in mono or multilayer combinations with paper, metallized coatings, etc. - The
extensible strip 4 of high plasticity is proceeded in polymers well known by those skilled in the art and related to the properties of high elongation at break values and high plasticity. The elongation percentage must be as high as possible and at least higher than 200%, and preferably higher than 400% and most preferably up to 1000%. Non limitative examples of such polymers are polyolefins and in particular homogeneously branched polyolefins obtained by metallocene catalysis exhibiting very good elongation at break values (LDPE, LLDPE, VLDPE), polyethylene and/or polypropylene copolymers and their modified versions, in particular EVA, EMA and EBA, polyurethanes, polyethers, modified polystyrene, PVC and his copolymers, etc. Depending on the size of the bag and the type of the content, an adequate choice balancing good irreversible elongation properties, thickness, eventually food related constraints, and price, must be targeted. - The
extensible strip 4, is generally sealed or glued together at his both ends with the rest of the packaging material in the crossdirectional seal area 5 of the VFFS/HFFS bag. The possible seals for this kind of packaging are well known by those skilled in the art. Non limitative examples are cold and heat seal coatings such as hot melts, PVDC coatings, acrylic coatings (MB666 of Mobil Plastics), latex-based cold sealing coatings, etc. - Additionally, an opening initiation (3,9) such as for example a pre-cut or a laser perforation for tear guidance is made in the top of the packaging next to the position of the
extensible strip 4. In that way, by opening (tearing) the package, the torn offpiece 11 of this pack remains connected to theextensible strip 4 while the other end of saidstrip 4 is fixed on the bottom inside the pack (bottom seal) in thecross seal area 5 - This is an additional advantage of the present invention, namely the
tearable piece 11, usually directly thrown away by the user, is not irreversibly separated from theoriginal bag 1 which makes the general waste problems more manageable. - After removing a part of the content of the bag of the present invention, the
extensible strip 4 is pulled out of the pack by means of holding and pulling of the torn off piece of the pack and elongated by at least afactor 2, preferably 4 and most preferably 10. The target of this operation is to achieve anelongated strip 4, which is long enough to roll it over the openedpackaging bag 1. Finally the over-rolledstrip 4 can be fixed by putting the torn off piece of thebag 11 attached to saidstrip 4 under the strings created by rolling the strip over thepackaging bag 1. In this way, the pack can be closed as described above and re-opened by untying the string. -
- 1.
- Bag
- 2.
- Cross-seal
- 3.
- Opening initiation by pre-cut
- 4.
- Extensible strip
- 5.
- Cross seal area comprising the extensible strip
- 6.
- Longitudinal seal
- 7.
- Four-side seal bag with extensible strip at the inside
- 8.
- Four-side seal area's
- 9.
- Laser perforation as opening initiation
- 10.
- Tear from opening initiation until side of bag
- 11.
- Torn off piece of the bag comprising one end of the strip
- 12.
- Filling pipe
- 13.
- Packaging material bag
- 14.
- Form shoulder
- 15.
- Longitudinal seal jaws
- 16.
- Cross seal jaws + cutting knife
- 17.
- Finished VFFS bag
- 18.
- Roll of extensible strip
- 19.
- Pre-perforation for top opening
Claims (8)
- Reclosable packaging bag (1) comprising inside its cross and/or longitudinal sealed ends and/or inside the bag an extensible strip (4) of high plasticity appearing only after the opening of said bag, said strip (4) having a substantially irreversible extensibility to a multiple of his original length, sufficient to enable said strip (4) to reclose said packaging by turning it at least once around said bag (1).
- Reclosable packaging bag (1) as in claim 1 characterised in that said extensible strip (4) is heat sealed and/or glued in the cross seals and/or in the longitudinal seals.
- Reclosable packaging bag (1) as in claim 1 characterised in that said extensible strip (4) is heat sealed and/or glued in the cross seals at both ends of said strip (4)
- Reclosable packaging as in claim 1 characterised in that said packaging comprises an opening initiation (3,9) allowing to tear a part of the packaging and in that said torn off part (11) of said packaging is still attached to said extensible strip (4) after opening said bag (1).
- Reclosable packaging as in claim 1 characterised in that said packaging comprises an opening initiation (3,9) allowing to tear a part of the packaging and in that said torn off part (11) of said packaging is a part of said extensible strip (4).
- Reclosable packaging as in claim 1 characterised in that said packaging comprises an opening initiation (3,9) including the extensible strip (4) in the upper cross seal of the bag (1) which is not identical with the opening initiation of the bag destined to open the bag in order to remove the content of the bag.
- Reclosable packaging as in claim 1 characterised in that said packaging is a plastic and/or paper bag or a combination of it.
- Method for the production of a reclosable packaging bag (1) characterised in that an extensible strip (4) of high plasticity is heat sealed inside or in the seams of said bag during a vertical and/or horizontal form, fill and seal process.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03447198A EP1500601A1 (en) | 2003-07-25 | 2003-07-25 | Reclosable packaging bag and production method thereof |
AT04731557T ATE428646T1 (en) | 2003-07-25 | 2004-05-07 | RESEALABLE PACKAGING BAG |
ES04731557T ES2323424T3 (en) | 2003-07-25 | 2004-05-07 | PACKAGING BAG THAT CAN BE CLOSED AGAIN. |
EP04731557A EP1648789B1 (en) | 2003-07-25 | 2004-05-07 | Reclosable packaging bag |
RU2006103236/12A RU2006103236A (en) | 2003-07-25 | 2004-05-07 | PACKAGING BAG WITH THE POSSIBILITY OF RE-SEALING AND METHOD FOR ITS MANUFACTURE |
PCT/BE2004/000067 WO2005009851A1 (en) | 2003-07-25 | 2004-05-07 | Reclosable packaging bag and production method thereof |
DE602004020626T DE602004020626D1 (en) | 2003-07-25 | 2004-05-07 | RE-LOCKABLE PACKAGING BAG |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03447198A EP1500601A1 (en) | 2003-07-25 | 2003-07-25 | Reclosable packaging bag and production method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1500601A1 true EP1500601A1 (en) | 2005-01-26 |
Family
ID=33484106
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03447198A Withdrawn EP1500601A1 (en) | 2003-07-25 | 2003-07-25 | Reclosable packaging bag and production method thereof |
EP04731557A Not-in-force EP1648789B1 (en) | 2003-07-25 | 2004-05-07 | Reclosable packaging bag |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04731557A Not-in-force EP1648789B1 (en) | 2003-07-25 | 2004-05-07 | Reclosable packaging bag |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP1500601A1 (en) |
AT (1) | ATE428646T1 (en) |
DE (1) | DE602004020626D1 (en) |
ES (1) | ES2323424T3 (en) |
RU (1) | RU2006103236A (en) |
WO (1) | WO2005009851A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170073098A1 (en) * | 2014-05-15 | 2017-03-16 | S2F Flexico | Form fill seal machine for a bag with a band |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007328872A (en) * | 2006-06-08 | 2007-12-20 | Hitachi Ltd | Information recording medium housing system and housing case |
US7681732B2 (en) | 2008-01-11 | 2010-03-23 | Cryovac, Inc. | Laminated lidstock |
DE102011075466A1 (en) | 2011-05-06 | 2012-11-08 | Constantia Hueck Folien Gmbh & Co. Kg | Packaging composite film and packaging |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403946A1 (en) * | 1977-09-21 | 1979-04-20 | Bentz & Sohn Melitta | Plastic bags fabricated with ancillary laces for ties - comprising continuous tape lightly welded to transverse bag seams |
US4913560A (en) | 1989-03-08 | 1990-04-03 | Mobil Oil Corporation | Stretchy sticky tape bag tie closure |
GB2347137A (en) * | 1999-02-25 | 2000-08-30 | Christopher Freeman Worrell | Bag with elongate flexible closure member |
WO2000073162A1 (en) | 1999-05-26 | 2000-12-07 | Innovative Elastics Limited | Reclosable bags |
-
2003
- 2003-07-25 EP EP03447198A patent/EP1500601A1/en not_active Withdrawn
-
2004
- 2004-05-07 DE DE602004020626T patent/DE602004020626D1/en active Active
- 2004-05-07 WO PCT/BE2004/000067 patent/WO2005009851A1/en active Application Filing
- 2004-05-07 RU RU2006103236/12A patent/RU2006103236A/en not_active Application Discontinuation
- 2004-05-07 ES ES04731557T patent/ES2323424T3/en active Active
- 2004-05-07 AT AT04731557T patent/ATE428646T1/en not_active IP Right Cessation
- 2004-05-07 EP EP04731557A patent/EP1648789B1/en not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403946A1 (en) * | 1977-09-21 | 1979-04-20 | Bentz & Sohn Melitta | Plastic bags fabricated with ancillary laces for ties - comprising continuous tape lightly welded to transverse bag seams |
US4913560A (en) | 1989-03-08 | 1990-04-03 | Mobil Oil Corporation | Stretchy sticky tape bag tie closure |
GB2347137A (en) * | 1999-02-25 | 2000-08-30 | Christopher Freeman Worrell | Bag with elongate flexible closure member |
WO2000073162A1 (en) | 1999-05-26 | 2000-12-07 | Innovative Elastics Limited | Reclosable bags |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170073098A1 (en) * | 2014-05-15 | 2017-03-16 | S2F Flexico | Form fill seal machine for a bag with a band |
US10464702B2 (en) * | 2014-05-15 | 2019-11-05 | S2F Flexico | Form fill and seal machine for a bag including a drawstring tape or cord and method for manufacturing such a bag |
Also Published As
Publication number | Publication date |
---|---|
ATE428646T1 (en) | 2009-05-15 |
EP1648789B1 (en) | 2009-04-15 |
RU2006103236A (en) | 2006-06-10 |
WO2005009851A1 (en) | 2005-02-03 |
EP1648789A1 (en) | 2006-04-26 |
ES2323424T3 (en) | 2009-07-15 |
DE602004020626D1 (en) | 2009-05-28 |
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REG | Reference to a national code |
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Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20050727 |