US20090180717A1 - Enhanced Plastic Net Bag - Google Patents

Enhanced Plastic Net Bag Download PDF

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Publication number
US20090180717A1
US20090180717A1 US12/329,241 US32924108A US2009180717A1 US 20090180717 A1 US20090180717 A1 US 20090180717A1 US 32924108 A US32924108 A US 32924108A US 2009180717 A1 US2009180717 A1 US 2009180717A1
Authority
US
United States
Prior art keywords
net bag
plastic net
strip
bag according
laminar
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
US12/329,241
Other languages
English (en)
Inventor
Agustin Dauder FERRER
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.)
Talleres Daumar SA
Original Assignee
Talleres Daumar SA
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
Priority claimed from ES200800049A external-priority patent/ES2338081B1/es
Priority claimed from ES200802342A external-priority patent/ES2352496B1/es
Application filed by Talleres Daumar SA filed Critical Talleres Daumar SA
Assigned to TALLERES DAUMAR, S.A. reassignment TALLERES DAUMAR, S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAUDER FERRER, AGUSTIN
Publication of US20090180717A1 publication Critical patent/US20090180717A1/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
    • B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
    • B65D29/04—Net-like containers made of plastics material
    • 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
    • B65D33/06—Handles

Definitions

  • this invention refers to an enhanced plastic net bag. More specifically, the object of the invention is a bag, of the type composed of a tubular element made of plastic material in the form of a netted element, such as woven, extruded or similar mesh, with lateral sheets also made of plastic and united to it by heat sealing, which is intended primarily for the commercialization of different food products, especially fruit and vegetables, because, unlike other conventional plastic bags, it permits product transpiration and visual, tactile and olfactory inspection.
  • bags composed of a tubular body of netted material, accompanied by one or two sheets that provide the means to close this tubular body at its ends, are widely used.
  • the packaged product is contained in a tubular body formed by a netted element, e.g., a woven, extruded or any other kind of mesh suitable for this application.
  • this tubular body is accompanied by one or two sheets, which are more or less wide, or else by a label, the mission of which is to close the ends or openings of the tubular element, as well as to provide a support for the printed information, whether it be promotional, nutritional, on traceability or of any other sort, to be used to distinguish and identify the contents of the bag.
  • metal staples are also known, and widely used, to close tubular netted materials of the woven or extruded tubular mesh type at their ends, in order to conform a container body of a certain length and diameter and, eventually, to attach a label, ribbon or tape type support for the printed information.
  • handles are formed by a tape of a plastic compound that, additionally, is united by heat welding to the other components at one of the ends or openings of the bags.
  • the incorporation of these handles means that the packing machines must be provided with the necessary means to obtain and incorporate them into the bags, with the complexity that this entails; they also represent a further increase in the amount of plastic material used to make the bags, with the resulting increase in their production and recycling costs.
  • the enhanced plastic net bag proposed herein satisfactorily achieves the objectives indicated as advantageous, and it is a noteworthy novelty in its field of application because, in accordance with its creation, a bag that effectively resolves each and every one of the drawbacks described above that affect the bags of this type currently available on the market is precisely achieved.
  • the characteristic details that make this possible are adequately indicated in the final claims that accompany this descriptive report.
  • the bag according to the invention comprises a tubular body of woven, extruded or similar mesh and a single laminar strip provided on one of its sides, where both elements are made of a suitable plastic material that allows for heat welding, with the particularity that the respective ends of this tubular body and those of the sheet conform a joint fold such that the sum of the materials included in this fold are the ones involved in the heat welded closure of the openings of the bag.
  • the laminar strip is located on the exterior of this fold that encompasses both elements—the strip and the mesh—and the mesh is located on its interior and fully gathered within the width of the strip.
  • this does not entail a limitation, since these relative positions of the strip and the mesh can be altered depending on the specific preferences or needs of some cases.
  • the length of the heat welds can likewise be variable but, as a general rule, they will encompass the full width of the laminar strip and the openings of the bag; in the same way, their width can also be variable depending on the needs of each case, provided that it is sufficient so that the whole of the welded mass has a resistance suited to the dimensions and weight of the product packed in the bags.
  • the bag of the invention is composed of a single laminar strip and a single tubular mesh body, with the lines of heat welding located at the ends folded over themselves, such that two layers of sheet and two layers of mesh are created.
  • the result is that, with a single sheet and a single mesh tube, sealing welds of the bags are obtained with a resistance equal to or greater than that which would be achieved with two plastic material sheets and one mesh tube.
  • the weight of the bag's component material is less than what it would be if it had two laminar strips all along its length. Since the mesh tube is also folded in the area of the welds, a high resistance of these welds is obtained, even when using narrower sheets than other known bags of this type.
  • the described configuration of the bag of the invention in which the single laminar element is arranged along it and united only to its ends, facilitates its advantageous use as a handle to hold and carry the bag, since the welds of this laminar element with the tubular mesh body of the bag are, as described above, sufficiently resistant to withstand the weight of the product contained in the bags for their intended use.
  • a small cut has been made in at least one of the folds that close the openings of the bag, beginning at the end of the fold or book folded point of the mesh and the sheet, which affects the two layers of the sheet and the two layers of the mesh.
  • these cuts are provided in the center of the folds that close the openings of the bag and are oriented perpendicularly to the folded axis of them, without this entailing a limitation since they can be shifted with respect to this center and have different orientations, e.g. oblique, without affecting their functionality.
  • the new enhanced plastic net bag therefore represents an innovative structure of structural and constitutional characteristics previously unknown for this purpose; these reasons, together with its practical utility, provide sufficient grounds to obtain the requested privilege of exclusivity.
  • FIG. 1 shows a schematic view in perspective of an example of execution of the enhanced plastic net bag which is the object of the invention, where the main parts and elements that compose it can be seen, as well as the configuration and arrangement thereof.
  • FIG. 2 shows a detailed side elevation view of one of the ends of the bag, where the fold of the tubular element together with the laminar strip and the heat weld that keeps them united can be seen.
  • FIG. 3 shows a cross-section view, as per cross-section A-A indicated in FIG. 2 , where the arrangement and configuration of the mesh and laminar strip layers can be seen.
  • FIG. 4 shows an amplified view of the detail of one of the bag's folds, where the configuration and arrangement of the easy opening cut provided on the bag can be seen.
  • the bag ( 1 ) that is the object of this invention is composed of a tubular body ( 2 ) of woven mesh, made of a plastic material, and a laminar strip or sheet ( 5 ) also made of plastic material, with the particularity that the openings or closures ( 3 and 4 ) of the ends of the bag ( 1 ) are formed by an enveloping association between the tubular body ( 2 ) of mesh and the ends of a laminar strip ( 5 ), such that both the strip ( 5 ) and the mesh conform a fold over themselves, where the sum of the materials included in this fold are the ones involved in the heat welded closure of the openings ( 3 and 4 ) of the bag.
  • These heat welds ( 6 and 7 ) are preferentially arranged transversally to the longitudinal axis of the bag ( 1 ), forming either a continuous line or else one of discontinuous sections that extend along the width of the strip ( 5 ) and are composed of the fused mass provided by the two layers of the sheet ( 8 and 8 ′) and the two layers of the tubular mesh ( 9 and 9 ′), as seen in FIG. 3 .
  • the laminar strip ( 5 ) is located on the exterior of the fold that encompasses the strip and the mesh, and the tubular mesh element is located on the interior of this fold and is fully gathered within the width of the laminar strip ( 5 ), although these relative positions of the strip and the mesh can be altered as necessary.
  • the length (L 1 ) of these lines or areas of welding ( 6 and 7 ) can be variable but, as a general rule, they will encompass the full width of the laminar strip and the openings of the bag; these width values range from 30 mm. to 200 mm., and preferentially from 40 to 70 mm.
  • the width (L 2 ) of the welds ( 6 and 7 ) can be variable, but it should be sufficient so that the whole of the welded mass has a resistance suited to the dimensions and weight of the product packed in the bags.
  • the value of this width will range from 5 mm. to 30 mm., and more preferentially from 10 mm. to 15 mm.
  • the beginning of the lines of heat welding ( 6 and 7 ), at the points more towards the ends of the bag, is located at a distance (L 3 ) of between 5 mm. and 50 mm., and more preferentially between 10 mm. and 20 mm., from the book folded point ( 10 and 11 ) of the sheet and the mesh.
  • This same distance (L 3 ) is the one that the fold of both components has without having any type of union between them.
  • this section (L 4 ) is seen in which the strip ( 5 ) and the mesh coming out of the welded fold are free and without any union between them.
  • This section (L 4 ) may vary from being non-existent up to a maximum length of 50 mm. In a preferential execution, this section (L 4 ) has a length ranging from 10 mm. to 20 mm.
  • the component material of the tubular mesh body ( 2 ) that forms the body is a thermoplastic that enables welding by fusion to the laminar strip ( 5 ), preferentially of the group of polyolefins (polyethylene, polypropylene, ethylenevinylacetate, etc.), and more preferentially medium density polyethylene (MDPE).
  • a thermoplastic that enables welding by fusion to the laminar strip ( 5 )
  • preferentially of the group of polyolefins polyethylene, polypropylene, ethylenevinylacetate, etc.
  • MDPE medium density polyethylene
  • the component material of the laminar strip ( 5 ) that is welded to the ends or openings of the bag is also a thermoplastic, which enables welding by fusion to the tubular mesh body ( 2 ); it is preferentially of the group of polyolefins (polyethylene, polypropylene, ethylenevinylacetate, etc.), and more preferentially it is a laminar complex with an exterior layer ( 12 and 12 ′), more removed from the fused mass that forms the weld, of polypropylene (PP), and an interior layer ( 13 and 13 ′) that conforms the fused mass of the weld together with the mesh material, of low density polyethylene (LDPE).
  • LDPE low density polyethylene
  • At least one cut ( 20 ) has been made in at least one of the folds that close the openings of the bag, beginning at the end of the fold or book folded point ( 10 and 11 ) of the mesh and the sheet, which affects the two layers ( 8 and 8 ′) of the sheet and the two layers ( 9 and 9 ′) of the mesh.
  • cuts ( 20 ) are preferentially provided in the center of the folds that close the openings ( 3 and 4 ) of the bag and are oriented perpendicularly to the folded axis of them, without this entailing a limitation since they can be shifted with respect to this center and have different orientations, e.g. oblique, without affecting their functionality.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Making Paper Articles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Outer Garments And Coats (AREA)
  • Prostheses (AREA)
US12/329,241 2008-01-10 2008-12-05 Enhanced Plastic Net Bag Abandoned US20090180717A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ESP200800049 2008-01-10
ES200800049A ES2338081B1 (es) 2008-01-10 2008-01-10 Bolsa reticular perfeccionada.
ES200802342A ES2352496B1 (es) 2008-08-05 2008-08-05 Perfeccionamientos en el objeto de la patente n. p20080009 por: bolsa reticular perfeccionada.
ESP200802342 2008-08-05

Publications (1)

Publication Number Publication Date
US20090180717A1 true US20090180717A1 (en) 2009-07-16

Family

ID=40547350

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/329,241 Abandoned US20090180717A1 (en) 2008-01-10 2008-12-05 Enhanced Plastic Net Bag

Country Status (8)

Country Link
US (1) US20090180717A1 (pl)
EP (1) EP2078682B1 (pl)
AT (1) ATE498558T1 (pl)
DE (1) DE602008004984D1 (pl)
HR (1) HRP20110323T1 (pl)
PL (1) PL2078682T3 (pl)
PT (1) PT2078682E (pl)
RU (1) RU2489333C2 (pl)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100002962A1 (en) * 2008-07-04 2010-01-07 Mont-Bell Co., Ltd. Storage Bag
US20120020587A1 (en) * 2009-04-02 2012-01-26 Girnet Internacional, S.L. Product-packaging bag
US20130039607A1 (en) * 2010-04-09 2013-02-14 Girnet Internacional, S.L. Strip for the formation of handles or labels for fruit and vegetable produce bags
US20160288975A1 (en) * 2015-03-30 2016-10-06 David John Bag, Especially Suitable for Dry, Flowable Materials, With Attached Carrying Strap
US10159224B1 (en) * 2017-05-30 2018-12-25 Richard P. Horrigan Disposable bird feeder with onboard suspension means
US20200247586A1 (en) * 2019-02-01 2020-08-06 FunnyFish Inc. Net carrier
US11492177B2 (en) * 2017-07-03 2022-11-08 Anci, Inc. Bag with multi-layer seam structure
EP4151400A1 (en) * 2021-09-15 2023-03-22 Girnet Internacional, S.L. Roll-up band and use of the same for manufacturing mesh bags

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508982B1 (de) * 2009-11-02 2013-03-15 Herwig Worff Verfahren zum verschliessen eines sackkörpers
JP5619268B1 (ja) * 2013-12-26 2014-11-05 トタニ技研工業株式会社 製袋機

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020300A (en) * 1931-01-09 1935-11-12 Bagpak Inc Bag and method of making same
US3254829A (en) * 1964-06-30 1966-06-07 United Shoe Machinery Corp Sealing of thermoplastic containers
US3339825A (en) * 1965-12-08 1967-09-05 Doughboy Ind Inc Bag
US3663239A (en) * 1969-04-07 1972-05-16 Nabisco Inc Toaster packages having four spouts
US3741778A (en) * 1971-03-09 1973-06-26 Nabisco Inc Package with self-contained handle for storing and heating food and method of forming same
US4207983A (en) * 1977-12-14 1980-06-17 Bemis Company, Inc. Packeting net bags
US4403637A (en) * 1981-09-21 1983-09-13 Rivelles Sabater Maria D Reinforced flexible container
US4555804A (en) * 1984-07-12 1985-11-26 Twinpak, Inc. Pouch handle
US5738211A (en) * 1995-10-25 1998-04-14 Fuji Photo Film Co., Ltd. Packaging bag
US5823683A (en) * 1995-10-23 1998-10-20 Amoco Corporation Self-seaming produce bag
US5912197A (en) * 1997-08-21 1999-06-15 C & H Packaging Company, Inc. Thermal sealable plastic mesh web for automatic form, fill and seal machine
US6088999A (en) * 1996-07-31 2000-07-18 Olaechea; Rosalina Paniagua Method of closing tubular bags for fruit and vegetable products
US20020021844A1 (en) * 1997-09-22 2002-02-21 Craig R. Rusert Open mesh bag
US6506429B1 (en) * 2000-01-11 2003-01-14 Michael J. Recchia, Jr. Bag with mesh wall
US20050053313A1 (en) * 2003-09-09 2005-03-10 Cargill, Inc. Multi-handled sealed bag
US7331716B2 (en) * 2002-03-15 2008-02-19 Kurita Water Industries Ltd. Flexible container, method of forming the flexible container, seal-breaking guide of the flexible container, method of enclosing liquid in the flexible container and the liquid enclosed in the flexible container
US7837388B1 (en) * 2003-05-09 2010-11-23 Plaspack Usa, Inc. Multi-material vertical form, fill and seal bag

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636821A1 (de) * 1976-08-16 1978-02-23 Kunichika Takasaki Verpackungsbeutel fuer fruechte oder gemuese sowie verfahren und vorrichtung zu seiner herstellung
ES252817Y (es) * 1980-09-06 1981-05-16 Envase perfeccionado
FR2584651B1 (fr) * 1985-07-11 1988-04-22 Hureau Jean Procede et dispositif pour la realisation de films a parois ajourees
RU2043260C1 (ru) * 1992-05-22 1995-09-10 Юрий Васильевич Пименов Мешок
ES1027615Y (es) 1994-04-14 1995-06-16 Olaechea Rosalina Paniagua Bolsa de malla, com asa, para productos hortifruticolas.
US6461041B1 (en) * 2000-02-15 2002-10-08 Ebrahim Simhaee Gussetted plastic bag
EP1886930A1 (en) * 2006-08-11 2008-02-13 Itaueira Agropecuaria S/A Net for fruit packaging comprising an imprinted handle

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020300A (en) * 1931-01-09 1935-11-12 Bagpak Inc Bag and method of making same
US3254829A (en) * 1964-06-30 1966-06-07 United Shoe Machinery Corp Sealing of thermoplastic containers
US3339825A (en) * 1965-12-08 1967-09-05 Doughboy Ind Inc Bag
US3663239A (en) * 1969-04-07 1972-05-16 Nabisco Inc Toaster packages having four spouts
US3741778A (en) * 1971-03-09 1973-06-26 Nabisco Inc Package with self-contained handle for storing and heating food and method of forming same
US4207983A (en) * 1977-12-14 1980-06-17 Bemis Company, Inc. Packeting net bags
US4403637A (en) * 1981-09-21 1983-09-13 Rivelles Sabater Maria D Reinforced flexible container
US4555804A (en) * 1984-07-12 1985-11-26 Twinpak, Inc. Pouch handle
US5823683A (en) * 1995-10-23 1998-10-20 Amoco Corporation Self-seaming produce bag
US5738211A (en) * 1995-10-25 1998-04-14 Fuji Photo Film Co., Ltd. Packaging bag
US6088999A (en) * 1996-07-31 2000-07-18 Olaechea; Rosalina Paniagua Method of closing tubular bags for fruit and vegetable products
US5912197A (en) * 1997-08-21 1999-06-15 C & H Packaging Company, Inc. Thermal sealable plastic mesh web for automatic form, fill and seal machine
US20020021844A1 (en) * 1997-09-22 2002-02-21 Craig R. Rusert Open mesh bag
US6506429B1 (en) * 2000-01-11 2003-01-14 Michael J. Recchia, Jr. Bag with mesh wall
US7331716B2 (en) * 2002-03-15 2008-02-19 Kurita Water Industries Ltd. Flexible container, method of forming the flexible container, seal-breaking guide of the flexible container, method of enclosing liquid in the flexible container and the liquid enclosed in the flexible container
US7837388B1 (en) * 2003-05-09 2010-11-23 Plaspack Usa, Inc. Multi-material vertical form, fill and seal bag
US20050053313A1 (en) * 2003-09-09 2005-03-10 Cargill, Inc. Multi-handled sealed bag

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100002962A1 (en) * 2008-07-04 2010-01-07 Mont-Bell Co., Ltd. Storage Bag
US8801286B2 (en) * 2008-07-04 2014-08-12 Mont-Bell Co., Ltd. Storage bag
US20120020587A1 (en) * 2009-04-02 2012-01-26 Girnet Internacional, S.L. Product-packaging bag
US20130039607A1 (en) * 2010-04-09 2013-02-14 Girnet Internacional, S.L. Strip for the formation of handles or labels for fruit and vegetable produce bags
US8627954B2 (en) * 2010-04-09 2014-01-14 Girnet Internacional, S.L. Strip for the formation of handles or labels for fruit and vegetable produce bags
US20160288975A1 (en) * 2015-03-30 2016-10-06 David John Bag, Especially Suitable for Dry, Flowable Materials, With Attached Carrying Strap
US10159224B1 (en) * 2017-05-30 2018-12-25 Richard P. Horrigan Disposable bird feeder with onboard suspension means
US11492177B2 (en) * 2017-07-03 2022-11-08 Anci, Inc. Bag with multi-layer seam structure
US20200247586A1 (en) * 2019-02-01 2020-08-06 FunnyFish Inc. Net carrier
EP4151400A1 (en) * 2021-09-15 2023-03-22 Girnet Internacional, S.L. Roll-up band and use of the same for manufacturing mesh bags
US11999529B2 (en) 2021-09-15 2024-06-04 Girnet Internacional, S.L. Roll-up band and use of the same for manufacturing mesh bags

Also Published As

Publication number Publication date
EP2078682A1 (en) 2009-07-15
PL2078682T3 (pl) 2011-07-29
HRP20110323T1 (hr) 2011-06-30
EP2078682B1 (en) 2011-02-16
PT2078682E (pt) 2011-05-11
RU2008152030A (ru) 2010-07-10
RU2489333C2 (ru) 2013-08-10
DE602008004984D1 (de) 2011-03-31
ATE498558T1 (de) 2011-03-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: TALLERES DAUMAR, S.A., SPAIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DAUDER FERRER, AGUSTIN;REEL/FRAME:021932/0681

Effective date: 20081202

STCB Information on status: application discontinuation

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