EP1941991A2 - Durchgehender schlauch zur herstellung von beutel, die für frucht- und gemüseprodukte bestimmt sind - Google Patents

Durchgehender schlauch zur herstellung von beutel, die für frucht- und gemüseprodukte bestimmt sind Download PDF

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Publication number
EP1941991A2
EP1941991A2 EP06807918A EP06807918A EP1941991A2 EP 1941991 A2 EP1941991 A2 EP 1941991A2 EP 06807918 A EP06807918 A EP 06807918A EP 06807918 A EP06807918 A EP 06807918A EP 1941991 A2 EP1941991 A2 EP 1941991A2
Authority
EP
European Patent Office
Prior art keywords
strips
mesh
end portions
laminar
tube
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Withdrawn
Application number
EP06807918A
Other languages
English (en)
French (fr)
Other versions
EP1941991A4 (de
Inventor
Juan Carlos De Clasca Cabre
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
Preformados Tubulares 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 Preformados Tubulares SL filed Critical Preformados Tubulares SL
Publication of EP1941991A2 publication Critical patent/EP1941991A2/de
Publication of EP1941991A4 publication Critical patent/EP1941991A4/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined

Definitions

  • the invention is comprised within the field of packaged fruit and vegetable products, such as for example potatoes or oranges, and more specifically it relates to a continuous tube for forming bags containing the mentioned fruit and vegetable products, which is formed from mesh strips, laminar strips and reinforcing strips which, once joined to one another, define the continuous tube.
  • the tube obtained by means of the process described in patent number 200102600 is formed from four longitudinal strips, two side mesh strips, and two plastic laminar strips, arranged in alternating positions being partially overlapped, the laminar strips being specifically located outwardly from the side mesh strips.
  • the laminar strips and the side mesh strips are joined to one another by means of heat-welding; this manufacturing process has the following drawbacks:
  • the objective of the invention is to solve the problems set forth, joining the laminar strips and the side mesh strips to one another by means of simple gluing instead of by means of heat welding, for which purpose it is necessary to introduce additional strips located on the inner face of the free ends of the side mesh strips, the main purpose of which is to reinforce the joint between the laminar strips and the side mesh strips. Furthermore respective folds are made on the side mesh strips from which the tube is formed, which folds are made towards the inside of the tube and define two edges located close and opposite to one another, and a partial fold is additionally made on the ends of the sides of the tube.
  • the present invention relates to a continuous tube for forming bags containing fruit and vegetable products, comprising at least a pair of mesh strips, a pair of laminar strips and at least four reinforcing strips.
  • the mesh strips are each preformed with a central fold made on the smaller dimension of each mesh strip following its larger dimension, each of the mesh strips being located once folded such that the edges defined by the mentioned folds are opposite one another and separated a certain distance S, each mesh strip having a fold at both ends, end portions having width A being defined, B being the distance between the fold and the free ends of a single strip and the upper end portions of each of the strips being located in a coplanar manner and the lower end portions thereof in an equally coplanar manner according to two parallel planes separated a distance W.
  • the laminar strips have a width C equivalent to at least two times the distance B plus the distance S, each of the laminar strips being respectively located outwardly from each pair of coplanar end portions and of said mesh strips.
  • the at least four reinforcing strips in turn have a width less than the width A of the end portions of each of the mesh strips, said reinforcing strips being arranged in a substantially parallel manner and coinciding with said end portions at the free outer part not covered by the respective laminar strips, said reinforcing strips being joined to the mesh strips and in turn to the laminar strips.
  • the reinforcing strips can be easily introduced due to the fact that such reinforcing strips will always be outside the mentioned mesh strips, preventing having to introduce them inside the space delimited by the mesh and laminar strips and therefore making the production rate increase considerably. Furthermore as a result of the mentioned folds of the mesh strips, considerable space can be saved in the mesh strip reels and working with very small accordions is allowed, even in those which the vertex does not reach the central longitudinal axis of the tube, thus creating bags with a very small capacity, such as for packaging garlic, for example.
  • One final advantage achieved as a result of previously folding the mesh strips forming an inverted accordion is that it ensures a perfect fit for joining the bottom and the mouth of the bag due to the fact that since the mesh strips in the folded position were wound for a significant amount of time, the shape is reactivated due to a memory effect of the plastic.
  • providing the mentioned mesh strips with a fold at each of its ends to define end portions facilitates the process for joining the mesh strips and the laminar strips due to the fact that since the upper end portions of the strips are located on a single plane just as the lower end portions are and said planes are parallel to the corresponding laminar strips, a closer, stronger and more secure joint between both types of strips and a better finishing thereof is achieved.
  • reinforcing strips are used which are placed in a substantially parallel and coinciding manner with said end portions, at the free outer part not covered by the respective laminar strips, in order to define a sandwich-type arrangement at each of the four joints which are defined in the continuous tube, formed by three layers: a first layer formed by the end of the corresponding laminar strip, a middle layer formed by the corresponding end portion of the mesh strip and a third layer formed by the reinforcing strip.
  • Said arrangement makes the bags formed from the tube defined in the present invention stronger and causes greater verticality or rigidness of the tube, making the storage of the bags full of products safer and more stable.
  • the use of two mesh strips is considered; in this case the mesh strips used will normally be made of extruded mesh since due to their high strength they allow using two mesh strips instead of a continuous mesh tube.
  • a continuous tube which is characterized in that the coplanar upper end portions, each of them corresponding to a mesh strip, are joined to one another forming a continuous upper base, and in that the coplanar lower end portions, each of them corresponding to a mesh strip, are joined to one another forming a continuous lower base, a closed mesh tube having two side folds like an accordion being defined, respective laminar strips being arranged outwardly from the upper and lower bases of said mesh tube and four reinforcing strips located on the end portions, at the free outer part of each mesh tube not covered by the laminar strips, covering the width A of said end portions.
  • the reinforcing strips are joined with the assembly formed by the mesh strips and the laminar strips by means of heat-sealable substances.
  • Figure 1 shows a sectional view of the continuous tube object of the present invention in a first embodiment thereof for the case of the extruded mesh strips.
  • Figure 2 schematically shows a plan view and a side view of the manufacturing installation for the continuous tube corresponding to the first embodiment of the invention.
  • Figure 3 shows a sectional view of the continuous tube object of the present invention in a second embodiment thereof for the case of a complete woven mesh tube.
  • Figure 4 schematically shows a plan view and a side view of the manufacturing installation for the continuous tube corresponding to the second embodiment of the invention.
  • the continuous tube for forming bags containing fruit and vegetable products object of the present invention in a first embodiment thereof, as can be seen in Figure 1 comprises at least a pair of already folded mesh strips 1-1' which can come from a reel (not depicted), each having a central fold 2-2' made on the smaller dimension of each mesh strip following its larger dimension.
  • Each of the strips can be obtained from previously splitting a complete extruded mesh tube into two equal parts, each of which will form each of the mesh strips 1-1'.
  • each of the mesh strips 1-1' is folded, they are located such that the edges defined by the mentioned folds 2-2' are opposite one another and separated a certain distance S, B being the distance between the fold 2-2' and the free ends 5-6; 5'-6' of a single strip.
  • each mesh strip 1-1' has a fold, end portions 3-4; 3'-4' having a width A being defined by the fold lines in each case.
  • each of the strips are located in a coplanar manner and the lower end portions 4-4' thereof in an equally coplanar manner, both planes in which the mentioned portions are located are separated a certain distance W, which is defined depending on the final dimensions to be achieved from the bags or containers for the fruit and vegetable products to be packaged.
  • Laminar strips 7 and 7' are respectively located externally on the pairs of coplanar end portions 3-3' and 4-4', the width of the mentioned laminar strips being equivalent at least to the sum of two times the distance B plus the separation distance S between the folds 2-2' of the mesh strips 1-1'.
  • the overlapping between the laminar strips 7-7' and the mesh strips 1-1' defines the continuous tube, both types of strips being joined to one another only through the end portions 3-3' and 4-4' by simply applying an adhesive, apply heat and pressure to the joint as will be detailed below.
  • Reinforcing strips 8-9 and 8'-9,' the width of which is less than the width A of the mentioned end portions, are arranged on the end portions 3-3' and 4-4', at the free outer part not covered by the respective laminar strips 7-7'; such reinforcing strips are placed in a substantially parallel manner and coinciding with said end portions 3-4 and 3'-4'.
  • the reinforcing strips 8-9 in the initial area of the installation are in turn located respectively one above and one below the plate 11, whereas the other two reinforcing strips 8'-9' are located one above and the other below the plate 11'.
  • Respective rollers 12-12' are subsequently located one above and one below the mount, at a certain distance therefrom, through which the laminar strips 7 and 7' respectively pass; at this moment several adhesive glue applicators, two of them 13 located above the tube and two of them 13' below such tube, apply glue on the inner face of the laminar strips 7 and 7' respectively.
  • Each of the laminar strips 7-7' are driven towards pressure rollers 15-15' respectively, by means of intermediate rollers 16-16' tensing said laminar strips; said pressure rollers 15-15' press each laminar strip, the inner face of which is previously impregnated with glue through the glue applicators, against the corresponding mesh strip 1-1' and in turn against the reinforcing strips 8-9; 8'-9' located below the end portions 3-3' and 4-4' of each laminar mesh, achieving formation of the joint, reinforced by the mentioned strips, between the laminar strips and the mentioned end portions of the mesh strips, defining a very strong closed tube, the sides of which are made of extruded mesh and the front-ends are made of a laminar strip which can be printed for commercial and informative purposes.
  • the joint achieved between the laminar strips 7-7' and the mesh strips 1-1' is very strong due to the fact that the mesh strip is located in an intermediate position between the corresponding laminar strip and the reinforcing strip and due to its mesh structure, the glue deposited on the laminar face passes through the gaps of the mesh strips and is able to reach the reinforcing strip, making it so that in a single pressure step, by means of pressure rollers 11-11', the three layers are joined to one another, defining a sandwich-type structure in which the mesh strip layer is retained between the corresponding laminar strip layer and the layer formed by the reinforcing strip.
  • the mesh used will be woven and instead of two mesh strips a closed or complete mesh tube will be used; for this purpose the coplanar upper end portions 3-3', each of them corresponding to a mesh strip 1-1', will be joined to one another forming a continuous upper base 10, and in turn the coplanar lower end portions 4-4', each of them corresponding to a mesh strip 1-1', will be joined to one another forming a continuous lower base 10'; said continuity defines a closed mesh tube, which, as in the case of extorted mesh, has two side folds 2-2' like an accordion, respective laminar strips 7-7' being arranged, as in the previous case, outwardly from the upper 10 and lower 10' bases of said mesh tube.
  • the main reason for using a complete mesh tube in the case of woven meshes is that the breaking strength thereof is considerably less than in extruded meshes, whereby it is necessary to conserve the continuity of the initial tube, being reinforced in two of its faces by joining the laminar strips, and being further reinforced by adding reinforcing strips, making the bags obtained from the tube very strong.
  • the plates 17, 18 and the bars 19 and 20 are joined to one another and define an upper body for securing the tube which is responsible for securing the upper base 10 of the mesh tube, whereas the plates 17', 18' and the bars 19' and 20' are joined to one another and define a lower body for securing the tube which is responsible for securing the lower base 10' of the mesh tube. Both upper and lower bodies are separated a certain distance for the purpose of allowing the mesh tube to run between them.
  • Third coplanar plates 21 and 22 separated from one another a certain distance coinciding with the separation distance S between the folds 2-2' of the mesh are arranged in an intermediate position between the mentioned upper and lower bodies for securing the tube in order to define the folds 2-2'.
  • the installation with thus have means for being able to take the tube from a shrunken state to a tensed or stretched state forcing the tube to pass outside the bars 19-20 and 19'-20' as is shown in Figure 4 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP06807918.5A 2005-08-17 2006-08-10 Durchgehender schlauch zur herstellung von beutel, die für frucht- und gemüseprodukte bestimmt sind Withdrawn EP1941991A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200502061A ES2284340B1 (es) 2005-08-17 2005-08-17 Tubular continuo para la formacion de bolsas contenedoras de productos hortofruticolas.
PCT/ES2006/000473 WO2007020311A2 (es) 2005-08-17 2006-08-10 Tubular continuo para ia formación de bolsas contenedoras de productos hortofrutícolas

Publications (2)

Publication Number Publication Date
EP1941991A2 true EP1941991A2 (de) 2008-07-09
EP1941991A4 EP1941991A4 (de) 2014-07-09

Family

ID=37757935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06807918.5A Withdrawn EP1941991A4 (de) 2005-08-17 2006-08-10 Durchgehender schlauch zur herstellung von beutel, die für frucht- und gemüseprodukte bestimmt sind

Country Status (4)

Country Link
US (1) US20090116767A1 (de)
EP (1) EP1941991A4 (de)
ES (1) ES2284340B1 (de)
WO (1) WO2007020311A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699121A1 (de) * 2008-07-15 2010-01-15 Water Line Sa Verfahren zur Herstellung eines Verpackungsbeutels.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2356876B1 (es) * 2009-06-09 2012-03-07 Cristóbal Meseguer, S.A. Bolsa para productos hortofrut�?colas.
ES2372453B1 (es) * 2010-06-23 2012-10-22 Cristóbal Meseguer S.A. Bolsa para envasado y comercialización de productos hortofrutícolas.
US9371143B2 (en) * 2012-11-21 2016-06-21 Volm Companies, Inc. Rectangular multi-substrate vertical form, fill, and seal bag and method and apparatus for forming and filling same
ES1274839U (es) * 2021-07-05 2021-07-23 Newco Classpack Partners S L Laminado y tubular continuo para la formacion de bolsas y bolsa para productos alimenticios
ES2977363T3 (es) * 2021-09-15 2024-08-22 Girnet Int S L Banda enrollable y uso de la misma para la fabricación de bolsas de malla

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588695A (en) * 1948-12-04 1952-03-11 Bemis Bro Bag Co Labeled open-mesh bag
US5823683A (en) * 1995-10-23 1998-10-20 Amoco Corporation Self-seaming produce bag
ES1037623Y (es) * 1997-06-23 1999-02-16 Meseguer Cristobal Sa Bolsa para productos hortofruticolas y similares.
IL137969A0 (en) * 2000-08-01 2001-10-31 Gimar Sa Bag for carrying fruit and vegetables
ES1047800Y (es) * 2000-12-05 2001-10-01 Meseguer Cristobal Sa Bolsa para productos hortofruticolas y similares.
ES2197780B1 (es) * 2001-11-23 2005-03-16 Iniciativas Barlar, S.L. Tubular continuo de malla para la formacion de bolsas para productos hortofruticolas y similares.
ES2192962B1 (es) * 2001-11-23 2005-02-16 Iniciativas Barlar, S.L. Procedimiento para la obtencion de un tubular continuo de malla para formacion de bolsas para productos hortofruticolas y similares, y tubular obtenido mediante dicho procedimiento.
ES2246101B1 (es) * 2003-02-27 2007-03-16 Preformados Tubulares, S.L. Procedimiento para la obtencion de un tubular continuo de malla para la formacion de sacos de gran resistencia y tubular obtenido mediante dicho procedimiento.
ES2239920B1 (es) * 2005-04-04 2006-06-16 Seinec, S.A. Bolsa para productos hortofruticolas.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699121A1 (de) * 2008-07-15 2010-01-15 Water Line Sa Verfahren zur Herstellung eines Verpackungsbeutels.
EP2145754A1 (de) * 2008-07-15 2010-01-20 Water-Line S.A. Verpackungsbeutel

Also Published As

Publication number Publication date
ES2284340B1 (es) 2008-09-16
US20090116767A1 (en) 2009-05-07
WO2007020311A3 (es) 2007-04-19
EP1941991A4 (de) 2014-07-09
ES2284340A1 (es) 2007-11-01
WO2007020311A2 (es) 2007-02-22

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