EP1908695A1 - Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products - Google Patents
Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products Download PDFInfo
- Publication number
- EP1908695A1 EP1908695A1 EP06794062A EP06794062A EP1908695A1 EP 1908695 A1 EP1908695 A1 EP 1908695A1 EP 06794062 A EP06794062 A EP 06794062A EP 06794062 A EP06794062 A EP 06794062A EP 1908695 A1 EP1908695 A1 EP 1908695A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strips
- mesh
- tube
- laminated
- products
- 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
Links
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Classifications
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
- B31B70/628—Applying glue on moving webs to form tubular 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
-
- 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
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without 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
- B31B2160/00—Shape of flexible containers
- B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
Definitions
- the present invention relates to improvements introduced in invention patent number 200102600 relating to a process for obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products and similar products, especially applied for obtaining a continuous tube which transversely alternates cross-linked mesh strips with plastic strips and reinforcement bands located on the inner face of said tube which act, together with the mentioned laminated, as reinforcement and support for different types of graphic prints.
- bags intended for containing vegetable and fruit products such as oranges, lemons, potatoes, etc. are already known on the market and are usually formed from a continuous extruded mesh tube which is filled with the mentioned products and subsequently closed in the packaging process.
- the tube obtained by means of the process described in patent number 200102600 is formed from four longitudinal strips, two lateral mesh strips and two plastic laminated strips, which are all arranged in alternating positions being partially overlapped, the laminated strips specifically being located outside the lateral mesh strips.
- the laminated strips and the lateral mesh strips were connected by means of heat-welding; this manufacturing process has the following drawbacks:
- the present invention relates to improvements introduced in invention patent number 200102660 relating to a process for obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products and similar products, and the tube obtained by means of said process, which tube is formed by four strips, two laminated strips and two other mesh strips, all of which are arranged in alternating positions, partially overlapping along bands connected to one another, providing in addition to the mentioned laminated strips four reinforcement bands located near both free ends of each of the mesh strips being connected to their inner face and to the laminated strips.
- connection of the reinforcement strips to the inner face of the mesh strips and to the laminated strips is preferably carried out by means of gluing. It can also be carried out by means of high frequency welding.
- a sandwich arrangement is defined in each of the four connections existing in the tube formed by three layers: a first layer formed by the end of the corresponding laminated strip, an intermediate layer formed by the end of the mesh strip and a third layer formed by the corresponding band; said arrangement makes the bags formed from the tube defined in the present invention to be very strong and it causes greater verticality or rigidity of the tube, making the storage of bags filled with products safer and more stable.
- Figure 1 shows a cross-sectional view of the tube object of the present invention.
- Figure 2 shows a plan, side schematic view of the facility for manufacturing the tube object of the present invention.
- Figure 3 shows a side schematic view of the facility for manufacturing the tube object of the present invention.
- the improved continuous mesh tube which is used to produce bags for vegetable and fruit products object of the present invention is formed from four strips: two laminated strips 1-1' and two other mesh strips 2-2', all of which are arranged in altering positions, partially overlapping along bands connected to one another.
- the tube has four reinforcement bands 3-3' and 4-4' located near both free ends of the mesh strips, specifically bands 3 and 3' are located at the free ends of mesh strip 2 and bands 4 and 4' on the free ends of mesh strip 2', being connected to their inner face and at the same time to the laminated strips 1-1'.
- Said laminated strips 1-1' will each be arranged on the free ends of the two mesh strips 2-2' by means of glue, i.e. laminated strip 1 will be placed on the ends 5 and 6 of the mesh strips 2-2' respectively, and laminated strip 1' will be placed on ends 5' and 6' of mesh strips 2-2' respectively;
- Figure 1 clearly shows the described arrangement.
- each one of the mentioned connections there will be a three-layered structure formed by an outermost layer made up of the ends of the laminated strips, by an intermediate layer made up of the ends of the mesh strips, and by an innermost layer made up of the reinforcement bands.
- mesh strips 2-2' are used to start, which strips can be obtained in two ways: either from two strips which are bent in the shape of a C, or from a closed mesh tube which is cut into two equal portions defining two likewise C-shaped semi-tubes.
- the mesh strips 2-2' are put on a plate 7 forming part of the mounting, surrounding the edges of said plate so that the strips can continue to be C-shaped; the reinforcement bands 3 and 4 for their part are initially located on a second narrower plate 8 connected to the previous plate such that they are arranged inwardly from the mesh strips; bands 3 and 4 are above the mentioned second plate 8 and bands 3' and 4' are under said plate.
- Respective rollers 9-9' are subsequently arranged a certain distance from the mounting through which the laminated strips 1 and 1' pass, respectively; in that instant four glue applicators, two applicators 10 located above the tube and two applicators 10' below it, apply glue on the inner face of the laminated strips 1-1', respectively.
- Each of the laminated strips 1-1' is led to pressure rollers 11-11', respectively; by means of intermediate rollers 12-12' tensing said laminated .strips; said pressure rollers press each laminated strip, the inner face of which is previously impregnated with glue, against the corresponding mesh strip and in turn against the reinforcement bands located under the free ends of each laminated mesh, achieving that the connection reinforced by the mentioned bands is carried out between the laminated strips and the free ends of the mesh strips, defining a very strong closed tube, the sides of which are made of normally extruded mesh and the front ends of which are made of a laminated strip which can be printed on with commercial and informative motifs.
- connection obtained between the laminated strips and the mesh strips is very strong due to the fact that the mesh strip is located in an intermediate position between the corresponding laminated strip and the reinforcement band, and due to its mesh structure, the glue deposited on the laminated layer passes through the holes of the mesh strip and reaches the band, connecting the three layers in a single pressure-application step by means of the pressure rollers 11-11', defining a sandwich-type structure in which the mesh strip layer is retained between the corresponding laminated strip layer and the layer formed by the reinforcement band.
Landscapes
- Making Paper Articles (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
- The present invention relates to improvements introduced in invention patent number 200102600 relating to a process for obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products and similar products, especially applied for obtaining a continuous tube which transversely alternates cross-linked mesh strips with plastic strips and reinforcement bands located on the inner face of said tube which act, together with the mentioned laminated, as reinforcement and support for different types of graphic prints.
- Different types of bags intended for containing vegetable and fruit products such as oranges, lemons, potatoes, etc. are already known on the market and are usually formed from a continuous extruded mesh tube which is filled with the mentioned products and subsequently closed in the packaging process.
- The tube obtained by means of the process described in patent number 200102600 is formed from four longitudinal strips, two lateral mesh strips and two plastic laminated strips, which are all arranged in alternating positions being partially overlapped, the laminated strips specifically being located outside the lateral mesh strips. The laminated strips and the lateral mesh strips were connected by means of heat-welding; this manufacturing process has the following drawbacks:
- The heat applied for the mentioned connection occasionally wrinkles the laminated strip and deforms the graphic prints and make the letters illegible.
- The process is limited to the use of certain materials for the mesh strips and the laminated strips because in order for the safe connection of the materials to occur it is necessary for both of them to have similar melting points, and therefore the connection of different types of materials and with different melting points, such as polypropylene, polyethylene, paper, etc., for example, is not allowed.
- The tube production rate is rather slow because it is necessary to wait for the melted material to cool down in order to be able to handle the tube without causing deformations.
- The objective of,these improvements is to solve the problems set forth, making it possible to connect the laminated strips and the lateral mesh strips by means of simple gluing as well as by means of heat-welding, to which end it is necessary to introduce additional bands located on the inner face of the free ends of the lateral mesh strips, the main purpose of which is to reinforce the connection between the laminated strips and the lateral mesh strips.
- The present invention relates to improvements introduced in invention patent number 200102660 relating to a process for obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products and similar products, and the tube obtained by means of said process, which tube is formed by four strips, two laminated strips and two other mesh strips, all of which are arranged in alternating positions, partially overlapping along bands connected to one another, providing in addition to the mentioned laminated strips four reinforcement bands located near both free ends of each of the mesh strips being connected to their inner face and to the laminated strips.
- It is therefore achieved that there is no deformation of the laminated strips since they do not have to be heating for connecting them to the mesh strips; different materials can be used in the manufacture of the tube, such as paper with polypropylene or polyethylene, and the tube manufacture rate is furthermore considerably increased.
- Said connection of the reinforcement strips to the inner face of the mesh strips and to the laminated strips is preferably carried out by means of gluing. It can also be carried out by means of high frequency welding.
- As a result of the described configuration, a sandwich arrangement is defined in each of the four connections existing in the tube formed by three layers: a first layer formed by the end of the corresponding laminated strip, an intermediate layer formed by the end of the mesh strip and a third layer formed by the corresponding band; said arrangement makes the bags formed from the tube defined in the present invention to be very strong and it causes greater verticality or rigidity of the tube, making the storage of bags filled with products safer and more stable.
- In addition, the placement of the reinforcement bands in coincidence with the handle that each bag incorporates makes the fixing of said handles firmer than if they were only connected to the laminated strips, thus preventing said handles from becoming detached during transport of the bags and therefore preventing the transported product from being damaged.
- The makeup, form of assembly and improved advantages introduced in invention patent number 200102600 relating to a process for obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products and similar products, and the tube obtained by means of said process object of the present invention, are explained below in greater detail in the attached drawings which aid in better understanding the invention and which are expressly related to embodiments of said invention that are presented as illustrative and non-limiting examples thereof.
-
Figure 1 shows a cross-sectional view of the tube object of the present invention. -
Figure 2 shows a plan, side schematic view of the facility for manufacturing the tube object of the present invention. -
Figure 3 shows a side schematic view of the facility for manufacturing the tube object of the present invention. - As can be seen in
Figure 1 , the improved continuous mesh tube which is used to produce bags for vegetable and fruit products object of the present invention is formed from four strips: two laminated strips 1-1' and two other mesh strips 2-2', all of which are arranged in altering positions, partially overlapping along bands connected to one another. - In addition to the four mentioned strips, the tube has four reinforcement bands 3-3' and 4-4' located near both free ends of the mesh strips, specifically
bands 3 and 3' are located at the free ends ofmesh strip 2 andbands 4 and 4' on the free ends of mesh strip 2', being connected to their inner face and at the same time to the laminated strips 1-1'. - Said laminated strips 1-1' will each be arranged on the free ends of the two mesh strips 2-2' by means of glue, i.e. laminated
strip 1 will be placed on theends Figure 1 clearly shows the described arrangement. - Four connections coinciding with the position of the mentioned reinforcement bands 3-3' and 4-4' are thus defined with the mentioned arrangement, which bands are arranged longitudinally with regard to the casing of the tube. In each one of the mentioned connections there will be a three-layered structure formed by an outermost layer made up of the ends of the laminated strips, by an intermediate layer made up of the ends of the mesh strips, and by an innermost layer made up of the reinforcement bands.
- With regard to the facility for manufacturing the improved tube, as can be seen in
Figures 2 and 3 , mesh strips 2-2' are used to start, which strips can be obtained in two ways: either from two strips which are bent in the shape of a C, or from a closed mesh tube which is cut into two equal portions defining two likewise C-shaped semi-tubes. - At the beginning of the facility, the mesh strips 2-2' are put on a plate 7 forming part of the mounting, surrounding the edges of said plate so that the strips can continue to be C-shaped; the
reinforcement bands narrower plate 8 connected to the previous plate such that they are arranged inwardly from the mesh strips;bands second plate 8 and bands 3' and 4' are under said plate. - Respective rollers 9-9' are subsequently arranged a certain distance from the mounting through which the laminated
strips 1 and 1' pass, respectively; in that instant four glue applicators, twoapplicators 10 located above the tube and twoapplicators 10' below it, apply glue on the inner face of the laminated strips 1-1', respectively. - The bands, which will at first run outside the mesh strips, as can be seen in
Figure 2 , will then, as a result of respective pairs of eyelets 13-13' made on the plate 7 (made at 45° in this case) and shown in the figure by means of a disruption in the path of the mentioned bands, be located right under the innermost face of the mesh strips (in order to simplify the drawing,Figure 2 only shows a pair ofbands - Each of the laminated strips 1-1' is led to pressure rollers 11-11', respectively; by means of intermediate rollers 12-12' tensing said laminated .strips; said pressure rollers press each laminated strip, the inner face of which is previously impregnated with glue, against the corresponding mesh strip and in turn against the reinforcement bands located under the free ends of each laminated mesh, achieving that the connection reinforced by the mentioned bands is carried out between the laminated strips and the free ends of the mesh strips, defining a very strong closed tube, the sides of which are made of normally extruded mesh and the front ends of which are made of a laminated strip which can be printed on with commercial and informative motifs.
- The connection obtained between the laminated strips and the mesh strips is very strong due to the fact that the mesh strip is located in an intermediate position between the corresponding laminated strip and the reinforcement band, and due to its mesh structure, the glue deposited on the laminated layer passes through the holes of the mesh strip and reaches the band, connecting the three layers in a single pressure-application step by means of the pressure rollers 11-11', defining a sandwich-type structure in which the mesh strip layer is retained between the corresponding laminated strip layer and the layer formed by the reinforcement band.
Claims (3)
- Improvements introduced in invention patent number 200102600 relating to a process for obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products and similar products, and the tube obtained by means of said process, the tube of which is made up of four strips, two laminated strips (1-1') and two other mesh strips (2-2'), all of which are arranged in alternating positions, partially overlapping along bands connected to one another, characterized in that four reinforcement bands (3-3'; 4-4') located near both free ends of each of the mesh strips (2-2') are additionally arranged, being connected to their inner face and to the laminated strips (1-1').
- Improvements introduced in invention patent number 200102600 according to claim 1, characterized in that said connection between the inner face and the laminated strips is carried out by means of gluing.
- Improvements introduced in invention patent number 200102600 according to claim 1, characterized in that said connection between the inner face and the laminated strips is carried out by means of high frequency welding.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200501645A ES2282019B1 (en) | 2001-11-23 | 2005-07-06 | IMPROVEMENTS INTRODUCED IN PATENT 200102600 CONCERNING A PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR FORMATION OF BAGS FOR HORTOFRUTICOLAS AND SIMILAR PRODUCTS AND TUBULAR OBTAINED THROUGH SUCH PROCEDURE. |
PCT/ES2006/000389 WO2007003676A1 (en) | 2005-07-06 | 2006-07-06 | Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1908695A1 true EP1908695A1 (en) | 2008-04-09 |
EP1908695B1 EP1908695B1 (en) | 2012-08-22 |
Family
ID=37604102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06794062A Not-in-force EP1908695B1 (en) | 2005-07-06 | 2006-07-06 | Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1908695B1 (en) |
WO (1) | WO2007003676A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2520328A (en) * | 2013-11-18 | 2015-05-20 | Amcor Flexibles Kreuzlingen Ag | Packaging material for fruit and vegetable produce |
EP3275799A1 (en) * | 2016-07-29 | 2018-01-31 | Preformados Tubulares S.L. | Continuous mixed tube for forming bags, and bag for horticultural or similar products obtained therefrom |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2565219B1 (en) | 2010-04-27 | 2018-06-27 | Nippon Shokubai Co., Ltd. | Method for producing polyacrylic acid (salt)-based water absorbent resin powder |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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. |
ES2239920B1 (en) * | 2005-04-04 | 2006-06-16 | Seinec, S.A. | HORTOFRUTICOLAS PRODUCTS BAG. |
-
2006
- 2006-07-06 WO PCT/ES2006/000389 patent/WO2007003676A1/en active Application Filing
- 2006-07-06 EP EP06794062A patent/EP1908695B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2007003676A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2520328A (en) * | 2013-11-18 | 2015-05-20 | Amcor Flexibles Kreuzlingen Ag | Packaging material for fruit and vegetable produce |
EP3275799A1 (en) * | 2016-07-29 | 2018-01-31 | Preformados Tubulares S.L. | Continuous mixed tube for forming bags, and bag for horticultural or similar products obtained therefrom |
Also Published As
Publication number | Publication date |
---|---|
WO2007003676A1 (en) | 2007-01-11 |
EP1908695B1 (en) | 2012-08-22 |
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