EP1454836A1 - Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products and the tube thus obtained - Google Patents

Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products and the tube thus obtained Download PDF

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Publication number
EP1454836A1
EP1454836A1 EP02787983A EP02787983A EP1454836A1 EP 1454836 A1 EP1454836 A1 EP 1454836A1 EP 02787983 A EP02787983 A EP 02787983A EP 02787983 A EP02787983 A EP 02787983A EP 1454836 A1 EP1454836 A1 EP 1454836A1
Authority
EP
European Patent Office
Prior art keywords
mesh
bands
laminar
continuous sheath
band
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.)
Granted
Application number
EP02787983A
Other languages
German (de)
French (fr)
Other versions
EP1454836B1 (en
Inventor
Juan Altimira Fontcuberta
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.)
Preformados Tubulares SL
Original Assignee
Iniciativas Barlar SL
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 Iniciativas Barlar SL filed Critical Iniciativas Barlar SL
Publication of EP1454836A1 publication Critical patent/EP1454836A1/en
Application granted granted Critical
Publication of EP1454836B1 publication Critical patent/EP1454836B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents

Definitions

  • the present invention refers to a process for obtaining a continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like, and the continuous sheath obtained by means of said process.
  • the object of the invention consists of a process for obtaining a continuous sheath longitudinally alternating laminar bands of net mesh with laminar bands of plastic, which act as reinforcement and support for graphic printing, forming a closed sheath in the same operation.
  • the invention also concerns the continuous sheath obtained with said process, providing significant cost reduction in terms of materials and process.
  • Bags for fruit and vegetable products such as oranges, lemons, potatoes, etc., are already known on the market, constituted of a tubular body of woven or extruded mesh which, once filled, are closed at their ends in the same packaging process.
  • This type of bags have the drawback that once they are formed, they do not have sufficient stiffness so as to be supported on their base due to the net structure of the mesh, adopting different shapes according to the packaged product.
  • the packer needs for the product bags to have dimensions that are as uniform as possible and a sufficient stiffness for carrying out a good stacking and subsequent palletizing.
  • the process proposed by the invention solves in a fully satisfactory manner the drawbacks set forth above, allowing for obtaining a continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like with maximum utility of the material used and with optimal functional features, i.e. susceptible to receiving a graphic printout and arrangement of a reinforcement maintaining the bag upright for good stacking and subsequent palletizing.
  • said process comprises the following phases:
  • the two C-shaped, transversally formed bands of mesh are obtained from two other flat bands of mesh folded according to two parallel lines close to the longitudinal edges.
  • Said C-shaped transverse bands of mesh can also be obtained from a continuous sheath of net mesh, the wall of which is cut according to two diametrically opposing longitudinal lines.
  • the obtained continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like is characterized in that it is constituted of four longitudinal bands, two laminar bands of plastic and two laminar bands of net mesh, all arranged in alternating positions, partially overlapped along the length of the strips which are joined to one another to form a continuous sheath, susceptible to being wound once it has been folded.
  • Said bands of net mesh (2-2') longitudinally move at an equal speed at the entrance of a rectangular-section bedplate (3), preferably of teflon, as a result of the arrangement of several side rollers (4).
  • the bands of net mesh (2-2') are transversally formed into a C shape, in facing parallel positions, partially enveloping the bedplate (3) with the coplanar opposing side walls (15-15'), leaving a separation (5-5') between them.
  • the C-shaped transversally formed bands of mesh are obtained from other such flat bands of mesh which are folded according to two parallel lines close to the longitudinal edges.
  • Said C-shaped transversally formed bands can also be obtained from a continuous sheath of net mesh (12), as shown in Figures 3 and 4, by cutting its wall according to two diametrically opposing longitudinal lines with a blade (11).
  • the continuous sheath of mesh finally obtained by means of said process is constituted of four longitudinal bands, two plastic laminar bands (6-6') and two laminar bands (2-2') of net mesh, all arranged in alternating positions, partially overlapped along the length of strips which are joined to one another to form a continuous sheath, susceptible to being wound once it has been folded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Packaging Frangible Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Sowing (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Protection Of Plants (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

A process for obtaining a continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like, and a continuous sheath obtained by means of said process.
The process includes the steps of: a) longitudinally shifting at an equal rate two facing, C-shaped transversally formed laminar bands of net mesh (2-2'); b) externally applying on each pair of opposing and coplanar side walls (15-15') a laminar band of plastic material (6-6'); and c) longitudinally joining each band of plastic material (6-6') to the coplanar side walls (15-15') on which said band is placed to form a continuous sheath.
The obtained sheath is constituted of four longitudinal bands, two laminar bands of plastic (6-6') and two laminar bands of net mesh (2-2').

Description

    OBJECT OF THE INVENTION
  • The present invention refers to a process for obtaining a continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like, and the continuous sheath obtained by means of said process.
  • The object of the invention consists of a process for obtaining a continuous sheath longitudinally alternating laminar bands of net mesh with laminar bands of plastic, which act as reinforcement and support for graphic printing, forming a closed sheath in the same operation.
  • The invention also concerns the continuous sheath obtained with said process, providing significant cost reduction in terms of materials and process.
    • BACKGROUND OF THE INVENTION
  • Bags for fruit and vegetable products, such as oranges, lemons, potatoes, etc., are already known on the market, constituted of a tubular body of woven or extruded mesh which, once filled, are closed at their ends in the same packaging process.
  • This type of bags have the drawback that once they are formed, they do not have sufficient stiffness so as to be supported on their base due to the net structure of the mesh, adopting different shapes according to the packaged product.
  • Today, the packer needs for the product bags to have dimensions that are as uniform as possible and a sufficient stiffness for carrying out a good stacking and subsequent palletizing.
  • One known solution is that disclosed in European patent number 0 047 544, consisting of providing the tubular band of mesh with two laterally opposing reinforcing laminar bands susceptible to receiving graphic printouts, which bands are externally overlaid and joined at their ends to one another and to the mesh bag, and separated from the bag in the remaining areas.
  • The solution disclosed in said patent has the drawback that once the bag is filled, it lacks the consistency and strength necessary for being maintained upright since the flexible laminar reinforcements arranged externally do not affect the net mesh walls. Furthermore, its cost is greater since it uses an entire sheath of mesh, with the excess of material this implies.
  • There are other known solutions consisting of the formation of a continuous laminar band closing on itself with the collaboration of a longitudinal sealing line, which laminar band is constituted of three strips of continuous plastic alternated with strips of net mesh.
  • This solution has the drawback that the previously made alternated laminar band must be closed on itself prior to the moment of packaging and closing of the bag, therefore the process is equally complex. Furthermore, this solution involves an additional sealing line to join the marginal strips of plastic, which hinders and makes the graphic printout thereof difficult, since three different types of laminar bands of plastic with different printouts must be made.
    • DESCRIPTION OF THE INVENTION
  • The process proposed by the invention solves in a fully satisfactory manner the drawbacks set forth above, allowing for obtaining a continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like with maximum utility of the material used and with optimal functional features, i.e. susceptible to receiving a graphic printout and arrangement of a reinforcement maintaining the bag upright for good stacking and subsequent palletizing.
  • To this end and more specifically, said process comprises the following phases:
  • a) longitudinally shifting at an equal rate two C-shaped transversally formed laminar bands of net mesh, in facing parallel positions, with coplanar opposing side walls;
  • b) externally applying on each pair of opposing and coplanar side walls a laminar band of plastic material, with a width exceeding the separation between said pairs of walls; and
  • c) longitudinally joining each band of plastic material to the two coplanar side walls on which said band is placed, in order to form a continuous sheath.
  • The two C-shaped, transversally formed bands of mesh are obtained from two other flat bands of mesh folded according to two parallel lines close to the longitudinal edges.
  • Said C-shaped transverse bands of mesh can also be obtained from a continuous sheath of net mesh, the wall of which is cut according to two diametrically opposing longitudinal lines.
  • The obtained continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like is characterized in that it is constituted of four longitudinal bands, two laminar bands of plastic and two laminar bands of net mesh, all arranged in alternating positions, partially overlapped along the length of the strips which are joined to one another to form a continuous sheath, susceptible to being wound once it has been folded.
    • DESCRIPTION OF THE DRAWINGS
  • To complement the description being made and for the purpose of aiding to better understand the features of the invention, according to a preferred practical embodiment thereof, a set of drawings is attached as an integral part of said description in which, with an illustrative and non-limiting character, the following has been shown:
  • Figure 1 shows a schematic plan view of the process for obtaining the continuous sheath for the formation of bags for fruit and vegetable products and the like.
  • Figure 2 shows a schematic profile view of the obtainment process, wherein the arrangement of the different reels of net mesh and of continuous plastic which will form the sheath can be seen.
  • Figure 3 shows a schematic elevational view of the process for obtaining the sheath using a continuous sheath of net mesh, the walls of which are cut according to two diametrically opposing longitudinal lines.
  • Figure 4 shows a schematic plan view of the process for obtaining the sheath, corresponding to the previous figure.
  • Figure 5 shows a cross sectional view of the sheath obtained by means of the process of the invention.
    • PREFERRED EMBODIMENT OF THE INVENTION
  • In view of these figures, it can be observed how the proposed process starts from the use of two reels (1-1'), suppliers of the respective laminar bands of net mesh (2-2'), said reels (1-1') being assembled with their shafts being parallel, so that the bands of net mesh (2-2') run parallelly.
  • Said bands of net mesh (2-2') longitudinally move at an equal speed at the entrance of a rectangular-section bedplate (3), preferably of teflon, as a result of the arrangement of several side rollers (4).
  • Once the bands of net mesh (2-2') have entered in the bedplate, they are transversally formed into a C shape, in facing parallel positions, partially enveloping the bedplate (3) with the coplanar opposing side walls (15-15'), leaving a separation (5-5') between them.
  • Then, respective plastic laminar bands (6-6'), having a width exceeding the separation between said pairs of walls (5-5'), coming from respective reels (7-7'), the upper and lower portions arranged with their shafts being parallel with regard to the bedplate (3), are applied on each pair of opposing and coplanar side walls (15-15').
  • With the aid of the rollers (8-8'), the opposing side walls (15-15'), along with those of the plastic bands (6-6'), are immobilized against the bedplate (3) for their subsequent longitudinal joining by means of heat-sealing, through sealing lines (9), the continuous sheath of mesh, shown in cross section in Figure 5, finally being obtained.
  • To facilitate handling and transport of the continuous sheath of mesh, it is then folded and rolled, obtaining the reel (10).
  • The C-shaped transversally formed bands of mesh are obtained from other such flat bands of mesh which are folded according to two parallel lines close to the longitudinal edges.
  • Said C-shaped transversally formed bands can also be obtained from a continuous sheath of net mesh (12), as shown in Figures 3 and 4, by cutting its wall according to two diametrically opposing longitudinal lines with a blade (11).
  • Thus, starting from a reel of a continuous sheath of net mesh (12), it is then cut longitudinally, the laminar bands of net mesh (2-2') already obtained being C-shaped and in facing positions, which once they previously spaced, are introduced in the bedplate (3) to follow the previously described obtainment process.
  • The continuous sheath of mesh finally obtained by means of said process is constituted of four longitudinal bands, two plastic laminar bands (6-6') and two laminar bands (2-2') of net mesh, all arranged in alternating positions, partially overlapped along the length of strips which are joined to one another to form a continuous sheath, susceptible to being wound once it has been folded.

Claims (4)

  1. A process for obtaining a continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like, characterized in that it comprises:
    a) longitudinally moving at an equal speed two C-shaped transversally formed laminar bands of net mesh, in facing parallel positions, with coplanar opposing side walls;
    b) externally applying on each pair of opposing and coplanar side walls a laminar band of plastic material, having a width exceeding the separation between said pairs of walls; and
    c) longitudinally joining each band of plastic material to the two coplanar side walls on which said band is placed, so as to form a continuous sheath.
  2. A process according to claim 1, characterized in that the two C-shaped transversally formed bands of mesh are obtained from two flat bands of mesh folded according to two parallel lines close to the longitudinal edges.
  3. A process according to claim 1, characterized in that the two C-shaped transverse bands of mesh are obtained from a continuous sheath of net mesh, the wall of which is cut according to two diametrically opposing longitudinal lines.
  4. A continuous sheath of mesh for the formation of bags for fruit and vegetable products and the like, characterized in that it is constituted of four longitudinal bands, two laminar bands of plastic and two laminar bands of net mesh, all arranged in alternating positions, partially overlapped along the length of strips which are joined to one another for forming a continuous sheath, susceptible to being wound once it has been folded.
EP02787983A 2001-11-23 2002-11-22 Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products and the tube thus obtained Expired - Lifetime EP1454836B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200102600 2001-11-23
ES200102600A ES2192962B1 (en) 2001-11-23 2001-11-23 PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF BAGS FOR HORTOFRUTICOL AND SIMILAR PRODUCTS, AND TUBULAR OBTAINED BY MEANS OF THIS PROCEDURE.
PCT/ES2002/000554 WO2003045803A1 (en) 2001-11-23 2002-11-22 Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products and the tube thus obtained

Publications (2)

Publication Number Publication Date
EP1454836A1 true EP1454836A1 (en) 2004-09-08
EP1454836B1 EP1454836B1 (en) 2006-07-05

Family

ID=8499543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02787983A Expired - Lifetime EP1454836B1 (en) 2001-11-23 2002-11-22 Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products and the tube thus obtained

Country Status (7)

Country Link
EP (1) EP1454836B1 (en)
AT (1) ATE332273T1 (en)
AU (1) AU2002354203A1 (en)
DE (1) DE60212995T2 (en)
ES (3) ES2192962B1 (en)
PT (1) PT1454836E (en)
WO (1) WO2003045803A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749760A1 (en) * 2005-08-05 2007-02-07 Sorma S.P.A. Container for fruit and vegetables products

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2192962B1 (en) * 2001-11-23 2005-02-16 Iniciativas Barlar, S.L. PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF BAGS FOR HORTOFRUTICOL AND SIMILAR PRODUCTS, AND TUBULAR OBTAINED BY MEANS OF THIS PROCEDURE.
ES2246101B1 (en) * 2003-02-27 2007-03-16 Preformados Tubulares, S.L. PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF HEAVY DUTY AND TUBULAR BAGS OBTAINED BY MEANS OF THIS PROCEDURE.
EP1908695B1 (en) 2005-07-06 2012-08-22 Preformados Tubulares, S.L. Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products
ES2284340B1 (en) * 2005-08-17 2008-09-16 Preformados Tubulares, S.L. CONTINUOUS TUBULAR FOR THE FORMATION OF HORTOFRUTICOLAS PRODUCT CONTAINER BAGS.
ES1144008Y (en) * 2015-09-04 2015-12-16 Preformados Tubulares S L CONTINUOUS TUBULAR FOR THE FORMATION OF BAGS

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Publication number Priority date Publication date Assignee Title
FR2093346A5 (en) * 1970-06-11 1972-01-28 Hureau Jacques Food container covers - made of partially slit plastic film stretched laterally to open the cuts
ES197422Y (en) * 1973-11-10 1975-10-16 Industrias Plasticas Zeg, S. A. (Zegsa) PERFECTED MESH BAG.
ES210380Y (en) * 1975-02-28 1976-10-01 Valverde Vinas DOUBLE WRAPPER FOR BAGS AND NOT SLEEVES, STARTING FROM LIGHT MESH FEET.
ES2111434B1 (en) * 1994-04-14 1998-10-16 Paniagua Olaechea Rosalina EXTRUDED MESH BAG, FOR THE PACKAGING OF BULK PRODUCTS AND PROCEDURE FOR THEIR MANUFACTURE.
US5823683A (en) * 1995-10-23 1998-10-20 Amoco Corporation Self-seaming produce bag
ES1037623Y (en) * 1997-06-23 1999-02-16 Meseguer Cristobal Sa BAG FOR HORTOFRUTICOLAS AND SIMILAR PRODUCTS.
ES1047800Y (en) * 2000-12-05 2001-10-01 Meseguer Cristobal Sa HORTOFRUTICOLAS AND SIMILAR PRODUCTS BAG.
ES2192962B1 (en) * 2001-11-23 2005-02-16 Iniciativas Barlar, S.L. PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF BAGS FOR HORTOFRUTICOL AND SIMILAR PRODUCTS, AND TUBULAR OBTAINED BY MEANS OF THIS PROCEDURE.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03045803A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749760A1 (en) * 2005-08-05 2007-02-07 Sorma S.P.A. Container for fruit and vegetables products

Also Published As

Publication number Publication date
ES2192962A1 (en) 2003-10-16
ES2282019B1 (en) 2008-08-16
DE60212995D1 (en) 2006-08-17
ATE332273T1 (en) 2006-07-15
DE60212995T2 (en) 2007-03-01
ES2268128T3 (en) 2007-03-16
ES2282019A1 (en) 2007-10-01
EP1454836B1 (en) 2006-07-05
PT1454836E (en) 2006-11-30
ES2192962B1 (en) 2005-02-16
AU2002354203A1 (en) 2003-06-10
WO2003045803A1 (en) 2003-06-05

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