ES2246101B1 - PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF HEAVY DUTY AND TUBULAR BAGS OBTAINED BY MEANS OF THIS PROCEDURE. - Google Patents

PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF HEAVY DUTY AND TUBULAR BAGS OBTAINED BY MEANS OF THIS PROCEDURE. Download PDF

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Publication number
ES2246101B1
ES2246101B1 ES200300478A ES200300478A ES2246101B1 ES 2246101 B1 ES2246101 B1 ES 2246101B1 ES 200300478 A ES200300478 A ES 200300478A ES 200300478 A ES200300478 A ES 200300478A ES 2246101 B1 ES2246101 B1 ES 2246101B1
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Prior art keywords
tubular
mesh
sheets
continuous
tubes
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ES200300478A
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Spanish (es)
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ES2246101A1 (en
Inventor
Juan Carlos De Clasca Cabre
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Preformados Tubulares SL
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Preformados Tubulares SL
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Priority to ES200300478A priority Critical patent/ES2246101B1/en
Priority to PCT/ES2004/000081 priority patent/WO2004076162A1/en
Priority to EP04713914A priority patent/EP1602475A1/en
Publication of ES2246101A1 publication Critical patent/ES2246101A1/en
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Publication of ES2246101B1 publication Critical patent/ES2246101B1/en
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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
    • 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

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  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Procedimiento para la obtención de un tubular continuo de malla para la formación de sacos de gran resistencia y tubular obtenido mediante dicho procedimiento. A partir por ejemplo de un tubular (2) de plástico continuo, aplanado, con un fuelle o plegado inglés (3), dicho tubular (2) se fragmenta por la mitad mediante corte (4) configurando dos piezas sensiblemente iguales (2-2''), provistas de pestañas (5) acodadas hacia adentro. Paralelamente a partir de un tubular de malla de extrusión (6), se somete a este último también a un corte (8) por su plano medio, determinante de dos semi-tubos (6-6'') de configuración diédrica y de concavidades contrapuestas, los cuales se introducen entre las láminas (2-2''), de manera que en las zonas marginales (14) de los primeros se sitúan las proximidades de las pestañas (5) de estas últimas, replegándose seguidamente dichas pestañas (5) hacia adentro y sometiéndose el conjunto a una fase de soldadura (15) determinante de cuatro robustas soldaduras (16), encada una de las cuales el borde de la malla de extrusión queda perfectamente fijado entre dos capas de plástico continuo, con lo que el tubular obtenido, plano y con repliegues interiores, ofrece un alto grado de resistencia mecánica frente a los esfuerzos interiores que debe soportar en situación de trabajo.Procedure for obtaining a continuous tubular mesh for the formation of high strength and tubular bags obtained by means of said procedure. From, for example, a continuous, flattened plastic tubular (2) with an English bellows or fold (3), said tubular (2) is fragmented in half by cutting (4), forming two substantially equal pieces (2-2 ''), provided with tabs (5) angled inwards. Parallel from a tubular extrusion mesh (6), the latter is also subjected to a cut (8) by its medium plane, determining two semi-tubes (6-6 '') of dihedral configuration and concavities opposite, which are introduced between the sheets (2-2 ''), so that in the marginal areas (14) of the former are located near the tabs (5) of the latter, then folding said tabs (5 ) inwards and subjecting the assembly to a welding phase (15) determining four robust welds (16), each one of which the edge of the extrusion mesh is perfectly fixed between two layers of continuous plastic, whereby the The tubular obtained, flat and with internal folds, offers a high degree of mechanical resistance against the internal stresses that it must withstand in a working situation.

Description

Procedimiento para la obtención de un tubular continuo de malla para la formación de sacos de gran resistencia y tubular obtenido mediante dicho procedimiento.Procedure for obtaining a tubular Continuous mesh for the formation of heavy duty sacks and tubular obtained by said procedure.

Objeto de la invenciónObject of the invention

La presente invención se refiere a un procedimiento para la obtención de un cuerpo tubular continuo, en el que participa malla extrusionada, cuerpo destinado a confeccionar sacos de gran resistencia, para poder contener en su seno pesos considerables, por ejemplo del orden de 15 a 20 Kg.The present invention relates to a procedure for obtaining a continuous tubular body, in the one that participates extruded mesh, body destined to make bags of great resistance, to be able to contain in your sine considerable weights, for example of the order of 15 to 20 Kg.

La invención concierne también al tubular continuo obtenido con dicho procedimiento, que resulta especialmente idóneo para el envasado y transporte de mejillones u otros objetos similares que, debido a la presencia en los mismos de las aristas cortantes de sus valvas, requieren de una malla extrusionada de mayor grosor para evitar roturas o rasgados de los sacos.The invention also concerns the tubular continuous obtained with said procedure, which results especially suitable for packing and transporting mussels or other similar objects that, due to the presence in them of the sharp edges of its leaflets require a mesh thicker extruded to prevent breakage or tearing of the sacks

Antecedentes de la invenciónBackground of the invention

El propio solicitante es titular de la patente de invención española con número de solicitud 200102600, en la que se describe un procedimiento para la obtención de un tubular continuo de malla para la formación de bolsas para productos hortofrutícolas y similares, así como el tubular obtenido con dicho procedimiento.The applicant himself owns the patent of Spanish invention with application number 200102600, in which a procedure for obtaining a tubular is described continuous mesh for the formation of bags for products horticultural and similar, as well as the tubular obtained with said process.

La solución de esta patente, si bien resulta perfectamente válida para envasar productos de peso reducido y de superficies redondeadas, para lo que la malla no requiere de un grosor importante, deja mucho que desear cuando se trata de productos de mayor peso o provistos de bordes cortantes, centrándose su problemática en los siguientes aspectos:The solution of this patent, although it turns out perfectly valid for packaging products of reduced weight and rounded surfaces, for which the mesh does not require a important thickness, leaves a lot to be desired when it comes to heavier products or with sharp edges, focusing its problem in the following aspects:

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Al utilizar una malla de mayor grosor, los semi-tubos obtenidos al seccionar longitudinalmente el tubular de malla reticulada, debido a la memoria de forma del plástico, tienden a recuperar su forma original (excesiva rigidez), lo cual entorpece del plegado "inglés", es decir con el fuelle hacia adentro.To the use a thicker mesh, the semi-tubes obtained by longitudinally sectioning the mesh tubular crosslinked, due to the shape memory of the plastic, tend to recover its original form (excessive rigidity), which hinders of the folding "English", that is to say with the bellows towards indoors.

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Las soldaduras longitudinales entre la malla extrusionada y las bandas de material plástico son sencillas y por tanto resultan débiles para soportar pesos elevados, con una alta probabilidad de roturas del saco a nivel de dichas zonas de unión entre malla extrusionada y banda continua.The longitudinal welds between the extruded mesh and the bands of plastic material are simple and therefore weak to withstand high weights, with a high probability of breakage of the bag at the level of said joining areas between extruded mesh and continuous band.
Descripción de la invenciónDescription of the invention

El procedimiento que la invención propone resuelve de forma plenamente satisfactoria la problemática anteriormente expuesta, permitiendo la obtención de un tubular capaz de recibir esfuerzos considerablemente mayores, y sin que surjan problemas a lo largo de su fabricación a pesar de utilizar mallas de mayor grosor.The procedure that the invention proposes solves the problem fully satisfactorily previously exposed, allowing to obtain a tubular capable of receiving considerably greater efforts, and without problems arise throughout its manufacture despite using thicker meshes.

Para ello y de forma más concreta el procedimiento utiliza también como materias primas una cinta o banda y una malla de extrusión. La cinta puede estar presentada de dos formas distintas: un plegado inglés, es decir, con un fuelle creado en el proceso de bobinado de la extrusión, o bien a partir de dos láminas independientes, un poco más anchas, ya que el pliegue del fuelle no está abatido. Estas cintas podrán ser impresas o no por su cara exterior e interior, mientras que el tubo con plegado inglés solo podrá estar impreso por su cara exterior. Por su parte la malla de extrusión puede a su vez ser un tubular de malla, que se corta longitudinalmente en dos semi-tubos de tamaño igual o semejante, o bien pueden ser dos láminas planas de malla que se doblan por su eje longitudinal creando dos semi-tubos de igual tamaño o semejantes, utilizándose uno u otro tipo en función de la dureza del material, que en cualquier caso va a ser de mayor grosor que convencionalmente, para que resistan los mayores esfuerzos que debe soportar.To do this and more specifically the procedure also uses as a raw material a tape or band and an extrusion mesh. The tape may be presented in two different ways: an English folding, that is, with a bellows created in the extrusion winding process, or from two independent sheets, a little wider, since the fold of the bellows is not dejected. These tapes may or may not be printed. by its outer and inner face, while the tube with folded English may only be printed on its outer face. For its part The extrusion mesh can in turn be a tubular mesh, which it is cut lengthwise into two semi-tubes of equal or similar size, or they can be two flat sheets of mesh that fold along its longitudinal axis creating two semi-tubes of equal or similar size, using one or the other type depending on the hardness of the material, which in any case will be thicker than conventionally, to resist the greatest efforts you should put up with.

El procedimiento, teniendo como finalidad conseguir un cuerpo tubular, de sección tendente al rectángulo, en el que dos paredes contrapuestas son de malla y las otras dos están totalmente cerradas, centra sus características en los siguientes aspectos:The procedure, having as its purpose achieve a tubular body, with a section tending to the rectangle, in the one that two opposing walls are made of mesh and the other two are fully closed, focus its characteristics on the following aspects:

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Los semi-tubos de malla extrusionada se sitúan con su concavidad orientada hacia fuera, lo que supone una tendencia del producto obtenido a ser plegado con el fuelle hacia adentro, permitiendo además un total control de la posición de las bandas al entrar en la máquina a envasar y facilitando el cierre de la boca de la bolsa, ya que elimina las clásicas placas de acompañamiento que crean el fuelle.The semi-extruded mesh tubes are placed with their concavity oriented outward, which implies a tendency of product obtained to be folded with the bellows inward, also allowing full control of the position of the bands at enter the machine to be packaged and facilitating the closing of the mouth of the bag, since it eliminates the classic accompaniment plates Believe the bellows.

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Esta posición invertida de los semi-tubos hace que el tubular tenga tendencia a cerrarse sobre sí mismo, por la memoria del polietileno, siendo fácilmente controlable mediante una cuña prismática-rectangular que se acople en su interior.This inverted position of the semi-tubes makes the tubular has a tendency to close on itself, by memory of polyethylene, being easily controllable by a wedge prismatic-rectangular that fits in its inside.

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De esta nueva disposición de los semi-tubos se deriva la posibilidad de utilizar dos guías fijas al chasis frente a la guía flotante convencional, lo que favorece de forma muy considerable el proceso de formación y soldadura.From this new arrangement of the semi-tubes is derived the possibility of using two fixed guides to the chassis in front of the conventional floating guide, which favors very considerable the formation and welding process.

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De acuerdo con una característica esencial de la invención las cintas o bandas continuas se sobredimensionan en anchura de manera que se repliegan sobre sí mismas, con interposición de los bordes de las bandas de malla de extrusión, de manera que durante la posterior soldadura se consiguen tres capas de material en correspondencia con las líneas de unión entre piezas, lo que refuerza de forma muy considerable la resistencia estructural del saco obtenido.From according to an essential feature of the invention the tapes or  continuous bands are oversized in width so that fold back on themselves, with interposition of the edges of the extrusion mesh bands, so that during the subsequent welding you get three layers of material in correspondence with the joining lines between pieces, which reinforces very considerable the structural strength of the bag obtained.
Descripción de los dibujosDescription of the drawings

Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of that description, a set of drawings where with illustrative and non-limiting nature, what has been represented next:

La figura 1. - Muestra las diferentes secuencias del procedimiento para obtención de un tubular continuo de malla para la formación de sacos de gran resistencia realizado de acuerdo con el objeto de la presente invención, junto a la representación esquemática de una instalación para la puesta en práctica del mismo, que aparece representada en planta.Figure 1. - Shows the different sequences of the procedure to obtain a continuous mesh tubular for the formation of heavy duty sacks made according for the purpose of the present invention, together with the representation schematic of an installation for the implementation of the same, that appears represented in plant.

La figura 2. - Muestra una representación similar a la figura anterior, pero en la que la citada instalación aparece en alzado.Figure 2. - Shows a representation similar to the previous figure, but in which the aforementioned installation appears in elevation.

Realización preferente de la invenciónPreferred Embodiment of the Invention

En el ejemplo de realización práctica de la figura 1 se parte, para la obtención de la cinta o banda cerrada, de una bobina (1) a base de un tubular (2) provisto de un plegado inglés, es decir de un fuelle (3) creado en el proceso de bobinado de la extrusión, sometiéndose a dicho tubular plano (2), en una inmediata fase operativa, a un corte por el plano medio de su fuelle (3), mediante el concurso de una pareja de elementos de corte (4), hasta obtener dos láminas independientes (2-2'), cada una de ellas con sus bordes o zonas marginales (5) acodadas hacia adentro, por efecto de la memoria plástica del material constitutivo de dicho tubular (2).In the example of practical realization of the Figure 1 is split, to obtain the tape or closed band, of a coil (1) based on a tubular (2) provided with a folding English, that is to say of a bellows (3) created in the winding process of the extrusion, being subjected to said flat tubular (2), in a immediate operational phase, to a cut by the middle plane of your bellows (3), through the contest of a couple of elements of cut (4), until obtaining two independent sheets (2-2 '), each with its edges or zones marginal (5) angled inwards, as a result of memory plastic of the constituent material of said tubular (2).

Paralelamente la malla de extrusión, también en forma de tubular aplanado (6), es suministrada por otra bobina (7), a la salida de la cual dicho tubular (6) sufre un corte (8) por su línea media con la colaboración de un mecanismo de corte (9), determinando dos semi-tubos (6-6') que a lo largo de su trayectoria (10) sobre la instalación, van a sufrir una apertura progresiva por efecto de cuñas de ángulo variable y creciente, hasta la posición (11) en la que los semi-tubos (6-6'), formando diedros próximos a los 90º y orientados con sus concavidades contrapuestas, es decir con dichas concavidades orientadas hacia fuera, sitúan su embocaduras a nivel de los acodamientos ortogonales (5) de las láminas (2-2'), que apoyan sobre asientos exteriores (12).Parallel to the extrusion mesh, also in flattened tubular shape (6), is supplied by another coil (7), at the exit of which said tubular (6) undergoes a cut (8) by its middle line with the collaboration of a cutting mechanism (9), determining two semi-tubes (6-6 ') that along their trajectory (10) about the installation, they will suffer progressive opening due to angle wedges variable and increasing, to the position (11) in which the semi-tubes (6-6 '), forming dihedral close to 90º and oriented with their opposite concavities, that is, with said outwardly oriented concavities, they place their mouthpieces at the level of orthogonal couplings (5) of the sheets (2-2 '), which rest on exterior seats (12).

Inmediatamente a continuación roldanas (13) provocan el abatimiento hacia adentro de las pestañas (5) de las bandas plásticas (2), abrazando a las zonas marginales (14) de los semi-tubos (6), para inmediatamente entren en acción los elementos de soldadura (15) que, actuando sobre los apoyos sufrideras (12), determinan las definitivas soldaduras (16) del tubular continuo, que al retirase las cuñas anteriormente citadas, adopta la disposición aplanada mostrada en la última secuencia (17) de las figuras, para pasar finalmente a la bobina de arrollamiento (18) donde queda en condiciones de utilización como medio de envasado de los productos anteriormente citados.Immediately next sheaves (13) cause the inwardly folding of the eyelashes (5) of the plastic bands (2), hugging the marginal areas (14) of the semi-tubes (6), to immediately take action the welding elements (15) which, acting on the supports sufrideras (12), determine the final welds (16) of the continuous tubular, that when the previously mentioned wedges were removed, adopt the flattened arrangement shown in the last sequence (17) of the figures, to finally pass to the winding coil (18) where it is in conditions of use as a means of packaging of the aforementioned products.

Se consigue de esta manera, de acuerdo con el objetivo de la invención, tubulares con mayor espesor de material, consecuentemente más resistentes, sin que ello suponga problema alguno de fabricación para los mismos, en los que sus piezas integrantes (2-6) quedarán fijadas mediante soldaduras (16) considerablemente más robustas, en las que concretamente la malla (6) queda enmarcada por dos capas de banda (2), lo que colabora también de forma decisiva en un incremento de la rigidez estructural del saco o tubular, capaz de soportar esfuerzos muy considerables.It is achieved in this way, according to the Objective of the invention, tubular with greater material thickness, consequently more resistant, without implying a problem some manufacturing for them, in which their parts members (2-6) will be fixed by welds (16) considerably more robust, in which specifically the mesh (6) is framed by two layers of band (2), which also collaborates decisively in an increase in the structural rigidity of the sack or tubular, able to withstand Very considerable efforts.

Claims (2)

1. Procedimiento para la obtención de un tubular continuo de malla para la formación de sacos de gran resistencia, caracterizado porque comprende:1. Procedure for obtaining a continuous mesh tubular for the formation of high strength bags, characterized in that it comprises:
a)to)
Utilizar dos bandas continuas (2-2') de plástico cerrado, y dotar a las mismas de pestañas acodadas (5) en correspondencia con sus bordes, o bien utilizar un tubular continuo (2), de similares características, con un plegado inglés (3), es decir con un pequeño fuelle interior, a nivel medio del cual se efectúa una operación de corte (4), para convertirlo en dos piezas sensiblemente iguales.Use two continuous bands (2-2 ') of closed plastic, and provide them with angled tabs (5) in correspondence with their edges, or use a continuous tubular (2), of similar characteristics, with an English fold (3), that is with a small inner bellows, to average level of which a cutting operation (4) is performed, for turn it into two pieces substantially the same.
b)b)
Incorporación entre las dos láminas (2-2') citadas de dos semi-tubos (6-6'), de malla de extrusión, preferentemente obtenidos de un tubo (7) plano y fragmentado en dos mediante una línea de corte intermedia (8), situándose los semi-tubos (6-6') entre las láminas (2-2') con sus concavidades contrapuestas, es decir orientadas hacia fuera.Incorporation between the two sheets (2-2 ') cited of two semi-tubes (6-6 '), extrusion mesh, preferably obtained from a flat tube (7) and fragmented in two by means of a intermediate cutting line (8), placing the semi-tubes (6-6 ') between the sheets (2-2 ') with its opposite concavities, that is oriented out.
c)C)
Actuación sobre el seno de los citados semi-tubos de malla (6-6') de respectivas cuñas de angulación creciente, hasta una situación límite en la que dicho semi-tubo (6-6') adopta una configuración diédrica tendente al ángulo recto, y en las que sus zonas marginales correspondientes a sus embocaduras se sitúan en adaptación a la cara interna de las láminas (2-2') e inmediatamente por dentro de las pestañas (5) de estas últimas.Action on the aforementioned half mesh tubes (6-6 ') of respective wedges of increasing angulation, up to a situation limit within which said semi-tube (6-6 ') adopts a dihedral configuration aimed at right angle, and in which its marginal areas corresponding to their mouths are placed in adaptation to the inner face of the sheets (2-2 ') and immediately inside the tabs (5) of the latter.
d)d)
Abatimiento de las citadas pestañas (5) de las láminas (2-2') hacia adentro, hacia el interior de los semi-tubos diédricos (6-6'), con la colaboración de roldanas (13) u otros medios de presión adecuados.Dejection of the mentioned eyelashes (5) of the sheets (2-2 ') inwards, towards the inside of the semi-tubes (6-6 '), with the collaboration of rollers (13) or other suitable pressure means.
e)and)
Fijación por termosoldadura (15) de las zonas marginales (14) de los semi-tubos de malla (6-6') entre las láminas (2-2') y sus correspondientes repliegues (5).Heat welding fixing (15) of the marginal areas (14) of the half-mesh tubes (6-6 ') between the sheets (2-2') and their corresponding folds (5).
f)F)
Eliminación de las cuñas y repliegue de los semi-tubos (6-6') hasta una situación de máxima proximidad entre las láminas (2-2'), configurando un tubular aplanado que se enrolla en forma de bobina (18).Wedge removal and folding of the semi-tubes (6-6 ') up to one maximum proximity situation between the sheets (2-2 '), configuring a flattened tubular that coil-shaped winding (18).
2. Tubular obtenido mediante el procedimiento de la reivindicación 1ª, caracterizado porque en el mismo participan dos láminas (2-2') o bandas continuas de plástico, entre las que se establecen dos piezas de malla (6-6'), con una configuración diédrica y con su concavidad orientada hacia afuera, presentando las citadas láminas (2-2') sus zonas marginales configurando pestañas (5) que se repliegan hacia el interior abrazando a las zonas marginales (14) de los semi-tubos de malla (6-6'), estableciéndose en estas zonas soldaduras de unión (16) entre los dos tipos de piezas (2-6) determinantes de una triple capa, concretamente de dos capas exteriores a base de plástico continuo y una capa intermedia de malla de extrusión.2. Tubular obtained by the method of claim 1, characterized in that two sheets (2-2 ') or continuous bands of plastic are involved, between which two mesh pieces (6-6') are established, with a dihedral configuration and with its concavity oriented outwards, the aforementioned sheets (2-2 ') presenting their marginal zones configuring tabs (5) that fold inwards hugging the marginal areas (14) of the half-tube mesh ( 6-6 '), establishing in these areas joint welds (16) between the two types of parts (2-6) determining a triple layer, specifically two outer layers based on continuous plastic and an intermediate layer of mesh extrusion.
ES200300478A 2003-02-27 2003-02-27 PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF HEAVY DUTY AND TUBULAR BAGS OBTAINED BY MEANS OF THIS PROCEDURE. Expired - Fee Related ES2246101B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES200300478A ES2246101B1 (en) 2003-02-27 2003-02-27 PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF HEAVY DUTY AND TUBULAR BAGS OBTAINED BY MEANS OF THIS PROCEDURE.
PCT/ES2004/000081 WO2004076162A1 (en) 2003-02-27 2004-02-24 Method of obtaining a continuous mesh tube which is used to produce high-strength bags and tube thus obtained
EP04713914A EP1602475A1 (en) 2003-02-27 2004-02-24 Method of obtaining a continuous mesh tube which is used to produce high-strength bags and tube thus obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200300478A ES2246101B1 (en) 2003-02-27 2003-02-27 PROCEDURE FOR OBTAINING A CONTINUOUS MESH TUBULAR FOR THE FORMATION OF HEAVY DUTY AND TUBULAR BAGS OBTAINED BY MEANS OF THIS PROCEDURE.

Publications (2)

Publication Number Publication Date
ES2246101A1 ES2246101A1 (en) 2006-02-01
ES2246101B1 true ES2246101B1 (en) 2007-03-16

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ES2284340B1 (en) * 2005-08-17 2008-09-16 Preformados Tubulares, S.L. CONTINUOUS TUBULAR FOR THE FORMATION OF HORTOFRUTICOLAS PRODUCT CONTAINER BAGS.
CN106629201B (en) * 2017-02-09 2018-04-20 上海小松包装机械有限公司 Packing machine M template film dividing guiders

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DE9207558U1 (en) * 1992-06-04 1992-10-29 Imer, Rodney Haydn, Dipl.-Ing., 4000 Düsseldorf Packaging bags for liquid, pasty and granular substances
IT242331Y1 (en) * 1996-02-07 2001-06-14 Netpack S R L BAG STRUCTURE IN PLASTIC SHEET AND NETWORK FOR THE CONTAINMENT OF BULK PRODUCTS, IN PARTICULAR OF FRUIT AND VEGETABLES.
ES1037623Y (en) * 1997-06-23 1999-02-16 Meseguer Cristobal Sa BAG FOR HORTOFRUTICOLAS AND SIMILAR PRODUCTS.
ES2157785B1 (en) * 1999-05-10 2002-02-16 Olaechea Rosalina Paniagua PERFECTED BAG, FOR HORTIFRUTICOLAS PRODUCTS.
US6517660B2 (en) * 2000-11-30 2003-02-11 Illinois Tool Works Inc. Method of forming gusseted reclosable bags
TW526160B (en) * 2001-01-21 2003-04-01 Luen Sing Tang Package
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.

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EP1602475A1 (en) 2005-12-07
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