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WO2009125134A1 - Bag intended to contain a pulverulent product - Google Patents

Bag intended to contain a pulverulent product Download PDF

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Publication number
WO2009125134A1
WO2009125134A1 PCT/FR2009/050515 FR2009050515W WO2009125134A1 WO 2009125134 A1 WO2009125134 A1 WO 2009125134A1 FR 2009050515 W FR2009050515 W FR 2009050515W WO 2009125134 A1 WO2009125134 A1 WO 2009125134A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
strip
flaps
glued
user
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.)
Ceased
Application number
PCT/FR2009/050515
Other languages
French (fr)
Inventor
Frédéric SOUDAN
Dimitri Weber
Sandrine Roux
Yves Roumeau
Pierre Bonnavion
Joel Raynaud
Michel Pigeat
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.)
Vicat SA
Original Assignee
Vicat SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vicat SA filed Critical Vicat SA
Priority to ES09729688T priority Critical patent/ES2408115T3/en
Priority to EP09729688A priority patent/EP2257474B1/en
Publication of WO2009125134A1 publication Critical patent/WO2009125134A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/08—Bags or like containers made of paper and having structural provision for thickness of contents with block bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/06—Containers or packages with special means for dispensing contents for dispensing powdered or granular material

Definitions

  • the invention relates to a bag for containing a powdery product.
  • powder hereinafter refers to products in the form of powders or granules.
  • the bag according to the invention may for example contain products for use in the building, such as cement, lime, mortars or coatings, or contain food chemicals such as fertilizer or flour.
  • the document FR 2,692,868 describes a bag comprising a wall of generally tubular shape delimiting a pocket, a first and a second end, at least one of the ends comprising flaps folded and glued so as to close the corresponding end, the bag further comprising a strip, made of a tear-resistant material and comprising a handle, glued to the end of the bag so as to cover the flaps.
  • the handle thus allows an operator to transport and manipulate the bag.
  • the user practices an opening in the wall at a precut line.
  • This opening is generally performed using a tool such as a trowel.
  • the opening thus practiced is not clear and requires the user to use the entire contents of the bag, the opening thus practiced being difficult to reclose.
  • each of the aforementioned bags requires the user to manipulate or return the bag between the carrying operation and the opening operation of the bag. Such manipulation is made all the more difficult as the bag is usually heavy.
  • the invention aims to remedy this drawback by proposing a bag intended to contain a powdery product, comprising a generally tubular wall delimiting a pocket, a first and a second end, at least one end having folded flaps.
  • the bag further comprising a strip, made of a tear-resistant material and comprising a handle, glued to the end of the bag so as to cover the flaps, characterized in that the flaps comprise an unsized portion arranged to facilitate their detachment, either by hand by the user, or under the effect of the weight of the powdery product during the tilting of the bag by the user and thus form an opening during their deployment, the band comprising a non-glued area facing the unsized portion of the flaps.
  • the user can carry the bag using the handle, put it on the ground, and take off the band directly.
  • the user must either lift one of the flaps by the unsized part and then lift the other flaps or tilt the bag so that the flaps unfold under the effect of the weight of the powdery product.
  • the bag is thus opened cleanly and it is possible to temporarily close the bag by folding the flaps after use, to reuse the product later.
  • the unsized area of the strip comprises a ribbon on which the adhesive does not take when it is applied to said strip.
  • the sizing can be achieved simply by applying an adhesive on the entire surface of the strip. This then takes on the entire surface of the band, except the ribbon area.
  • the ribbon is made of polyethylene.
  • the band is glued to the bag with the aid of a latex-based glue.
  • Latex adhesives are quick-setting adhesives.
  • the bag can then be made continuously, with high production rates, without risk of sliding of the band relative to the bag after positioning and bonding thereof.
  • the strip of tear-resistant material is a complex comprising an armature.
  • the complex comprises at least one layer made of a material in the form of a grid, intended to form an armature, and on each face of the armature, at least one film of synthetic material, for example in polyethylene, and at least one paper sheet.
  • the strip comprises, at least at one of its ends, an area protruding from the bag and allowing the gripping of the strip to facilitate its take-off.
  • the handle is formed by at least one cutout formed in the band.
  • the other of the ends comprises flaps folded and glued.
  • the other of the ends comprises a reinforcement strip glued on the corresponding flaps.
  • the bag is made of kraft paper and / or polyethylene film.
  • Figure 1 is a perspective view
  • Figure 2 is a front view of the bag, in the unfilled and folded position thereof.
  • Figure 3 is a view of the end of the bag covered by the band equipped with the handle;
  • Figure 4 is a bottom view of the strip to be glued against the corresponding end of the bag
  • Figure 5 is a view corresponding to Figure 3, the strip being peeled from the corresponding end;
  • Figure 6 is an enlarged view of the section of the band equipped with the handle.
  • Figure 1 shows a bag 1 of kraft paper, intended to contain a powdery product.
  • the bag comprises a wall 2 of generally tubular shape delimiting a pocket, a first and a second end 3, 4.
  • the bag has lateral fold lines 5, as is known per se.
  • the first end 3 comprises flaps 6, 7 folded and glued so as to close the corresponding end.
  • the flaps 6, 7 comprise an unsized portion 8 arranged to form an opening during their deployment.
  • the second end 4 also has flaps folded and glued. These are glued entirely so that it is not possible to deploy said flaps.
  • the flaps of the first and second ends 3, 4 have the same general shapes.
  • each flap 6, 7 has a trapezoidal shape.
  • each end 3, 4 of the bag has a generally rectangular shape.
  • a first flap hereinafter referred to as lower flap 6, is covered in part by a second flap, hereinafter referred to as upper flap 7.
  • the bag 1 comprises a strip 11 made of a tear-resistant material and comprising a handle 12.
  • This strip 11 is bonded to the first end 3 of the bag, so as to cover the corresponding flaps.
  • the strip 11 is formed in a complex comprising a central reinforcement 13 in the form of a grid, covered on each of its two faces by a polyethylene sheet 14 and by a sheet paper 15.
  • the band 11 comprises two longitudinal cutouts 16 delimiting the handle 12 which can be grasped by the user, by detaching it. More particularly, during the detachment of the handle 12, the paper layer 15 turned on the side of the flaps 6, 7 and glued thereto is not detached from the bag 1 and is detached from the rest of the aforementioned complex. This paper layer 15 thus separates from the corresponding polyethylene layer 14. As best seen in FIG. 4, the strip 11 comprises, on its surface intended to be glued, a polyethylene tape 17 extending longitudinally along the entire length of the strip 11.
  • a latex-based glue is applied to the corresponding surface of the strip, this glue taking only on the surface of paper 15 and not on the ribbon 17 made of polyethylene.
  • the ribbon 17 is arranged so that, during the application of the band 11 glued on the first end 3 of the bag, the ribbon 17 covers the base 8 of the upper flap 7.
  • the user grasps the gripping zone 18 of the strip 11 and then strips said strip from the first end 3.
  • the sheet of glued paper remains fixed on the first end 3.
  • the base 8 of the upper flap 7 is not covered by the sheet of the remaining paper 15 since the base 8 is covered by the ribbon 17. It is thus possible to immediately and completely release the opening formed between the flaps 6 and 7 to allow emptying all or part of the contents of the bag.
  • the opening of the flaps 6, 7 is facilitated by the fact that the bases 8 are not glued.
  • the lateral sides 7 of the flaps 6, 7 are easily peeled, so that the deployment of the flaps 6, 7 can be easily done by hand, or exerted directly by the weight of the powdery product during the tilting of the bag 1 by the user. This is facilitated by the fact that it is possible for the user to slide the hand between the upper flap 7 and the lower flap 6 at the base 8.
  • the first end 3 of the bag 1 can be closed again by folding the flaps 6, 7 or even by sticking an additional adhesive strip at this end 3.
  • the invention thus provides a bag that can be worn and opened quickly without requiring manipulation between porting and opening the bag, the latter can also be closed when only part of its contents is used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

The invention relates to a bag (1), intended to contain a pulverulent product, having a wall (2) of tubular general shape defining a pocket, and first and second ends (3, 4), at least one (3) of the ends having flaps which are folded and pasted with glue so as to close the corresponding end (3), the bag (1) additionally having a band (11), made of a tear-resistant material and comprising a handle (12), glued onto the end (3) of the bag so as to cover the flaps. The flaps (6, 7) have a non-pasted portion (8) designed to make them easier to separate, either manually by a user or under the effect of the weight of the pulverulent product when the bag is tilted by the user, and thus form an opening as they are deployed, the band (11) having a non-pasted region (17) which is positioned to face the non-pasted portion (8) of the flaps (6, 7).

Description

Sac, destiné à contenir un produit pulvérulent Bag, intended to contain a powdery product

L'invention concerne un sac, destiné à contenir un produit pulvérulent.The invention relates to a bag for containing a powdery product.

Le terme pulvérulent désigne ci-après des produits sous forme de poudres ou de granules.The term "powder" hereinafter refers to products in the form of powders or granules.

Le sac selon l'invention peut par exemple contenir des produits à usage dans le bâtiment, tels que du ciment, de la chaux, des mortiers ou des enduits, ou contenir des produits chimiques alimentaires tels que des engrais ou de la farine.The bag according to the invention may for example contain products for use in the building, such as cement, lime, mortars or coatings, or contain food chemicals such as fertilizer or flour.

Le document FR 2 692 868 décrit un sac comportant une paroi de forme générale tubulaire délimitant une poche, une première et une seconde extrémités, l'une au moins des extrémités comportant des rabats repliés et encollés de manière à fermer l'extrémité correspondante, le sac comportant en outre une bande, réalisée en un matériau résistant au déchirement et comprenant une poignée, collée sur l'extrémité du sac de manière à recouvrir les rabats.The document FR 2,692,868 describes a bag comprising a wall of generally tubular shape delimiting a pocket, a first and a second end, at least one of the ends comprising flaps folded and glued so as to close the corresponding end, the bag further comprising a strip, made of a tear-resistant material and comprising a handle, glued to the end of the bag so as to cover the flaps.

La poignée permet ainsi à un opérateur de transporter et de manipuler le sac.The handle thus allows an operator to transport and manipulate the bag.

Afin d'ouvrir le sac décrit dans le document précité, l'utilisateur pratique une ouverture dans la paroi au niveau d'une ligne de prédécoupe. Cette ouverture est généralement réalisée à l'aide d'un outil tel qu'une truelle.In order to open the bag described in the aforementioned document, the user practices an opening in the wall at a precut line. This opening is generally performed using a tool such as a trowel.

L'ouverture ainsi pratiquée n'est pas nette et oblige l'utilisateur à utiliser la totalité du contenu du sac, l'ouverture ainsi pratiquée étant difficilement refermable.The opening thus practiced is not clear and requires the user to use the entire contents of the bag, the opening thus practiced being difficult to reclose.

Afin de pallier cet inconvénient, les documents FR 2 833 576, FR 2 854 833 et F R 2 811 966 proposent des systèmes d'ouverture et de refermeture de type coulisseau ou tirette. Ce type de système est complexe et engendre un surcoût important lors de la fabrication du sac.In order to overcome this drawback, the documents FR 2 833 576, FR 2 854 833 and FR 2 811 966 propose sliding-type opening or closing systems. This type of system is complex and generates a significant additional cost during the manufacture of the bag.

En outre, chacun des sacs précités oblige l'utilisateur à manipuler ou à retourner le sac entre l'opération de portage et l'opération d'ouverture du sac. Une telle manipulation est rendue d'autant plus difficile que le sac est généralement lourd. L'invention vise à remédier à cet inconvénient en proposant un sac, destiné à contenir un produit pulvérulent, comportant une paroi de forme générale tubulaire délimitant une poche, une première et une seconde extrémités, l'une au moins des extrémités comportant des rabats repliés et encollés de manière à fermer l'extrémité correspondante, le sac comportant en outre une bande, réalisée en un matériau résistant au déchirement et comprenant une poignée, collée sur l'extrémité du sac de manière à recouvrir les rabats, caractérisé en ce que les rabats comportent une partie non encollée agencée pour faciliter leur décollement, soit à la main par l'utilisateur, soit sous l'effet du poids du produit pulvérulent lors du basculement du sac par l'utilisateur et former ainsi une ouverture lors de leur déploiement, la bande comportant une zone non encollée venant en regard de la partie non encollée des rabats.In addition, each of the aforementioned bags requires the user to manipulate or return the bag between the carrying operation and the opening operation of the bag. Such manipulation is made all the more difficult as the bag is usually heavy. The invention aims to remedy this drawback by proposing a bag intended to contain a powdery product, comprising a generally tubular wall delimiting a pocket, a first and a second end, at least one end having folded flaps. and sized to close the corresponding end, the bag further comprising a strip, made of a tear-resistant material and comprising a handle, glued to the end of the bag so as to cover the flaps, characterized in that the flaps comprise an unsized portion arranged to facilitate their detachment, either by hand by the user, or under the effect of the weight of the powdery product during the tilting of the bag by the user and thus form an opening during their deployment, the band comprising a non-glued area facing the unsized portion of the flaps.

De cette manière, l'utilisateur peut porter le sac à l'aide de la poignée, le poser au sol, et décoller directement la bande. Pour obtenir l'ouverture complète du sac, l'utilisateur doit, soit soulever l'un des rabats par la partie non encollée puis soulever le ou les autres rabats, soit basculer le sac de manière à ce que les rabats se déploient sous l'effet du poids du produit pulvérulent. Le sac est ainsi ouvert de manière propre et il est possible de refermer provisoirement le sac en repliant les rabats après utilisation, pour pouvoir réutiliser ultérieurement le produit.In this way, the user can carry the bag using the handle, put it on the ground, and take off the band directly. To obtain the complete opening of the bag, the user must either lift one of the flaps by the unsized part and then lift the other flaps or tilt the bag so that the flaps unfold under the effect of the weight of the powdery product. The bag is thus opened cleanly and it is possible to temporarily close the bag by folding the flaps after use, to reuse the product later.

Selon une possibilité de l'invention, la zone non encollée de la bande comporte un ruban sur lequel la colle ne prend pas lors de son application sur ladite bande. De cette manière, l'encollage peut être réalisé simplement, par application d'une colle sur toute la surface de la bande. Celle-ci prend alors sur la totalité de la surface la bande, hormis la zone du ruban.According to a possibility of the invention, the unsized area of the strip comprises a ribbon on which the adhesive does not take when it is applied to said strip. In this way, the sizing can be achieved simply by applying an adhesive on the entire surface of the strip. This then takes on the entire surface of the band, except the ribbon area.

Avantageusement, le ruban est réalisé en polyéthylène.Advantageously, the ribbon is made of polyethylene.

Selon une caractéristique de l'invention, la bande est collée sur le sac à l'aide d'une colle à base de latex.According to one characteristic of the invention, the band is glued to the bag with the aid of a latex-based glue.

Les colles à base de latex sont des colles à prise rapide. Le sac peut alors être réalisé en continu, avec des cadences élevées de fabrication, sans risque de glissement de la bande par rapport au sac, après positionnement et collage de celle-ci. Préférentiellement, la bande en matériau résistant au déchirement est un complexe comportant une armature. Selon une possibilité de l'invention, le complexe comporte au moins une couche réalisée dans un matériau en forme de grille, destiné à former une armature, et sur chaque face de l'armature, au moins un film en matériau synthétique, par exemple en polyéthylène, et au moins une feuille en papier. Selon une forme de réalisation, la bande comporte, à l'une au moins de ses extrémités, une zone débordant du sac et permettant la préhension de la bande afin de faciliter son décollage.Latex adhesives are quick-setting adhesives. The bag can then be made continuously, with high production rates, without risk of sliding of the band relative to the bag after positioning and bonding thereof. Preferably, the strip of tear-resistant material is a complex comprising an armature. According to a possibility of the invention, the complex comprises at least one layer made of a material in the form of a grid, intended to form an armature, and on each face of the armature, at least one film of synthetic material, for example in polyethylene, and at least one paper sheet. According to one embodiment, the strip comprises, at least at one of its ends, an area protruding from the bag and allowing the gripping of the strip to facilitate its take-off.

Avantageusement, la poignée est formée par au moins une découpe ménagée dans la bande. Selon une caractéristique de l'invention, l'autre des extrémités comporte des rabats repliés et encollés.Advantageously, the handle is formed by at least one cutout formed in the band. According to one characteristic of the invention, the other of the ends comprises flaps folded and glued.

Préférentiellement, l'autre des extrémités comporte une bande de renfort encollée sur les rabats correspondants.Preferably, the other of the ends comprises a reinforcement strip glued on the corresponding flaps.

Selon une possibilité de l'invention, le sac est réalisé en papier kraft et/ou en film polyéthylène.According to a possibility of the invention, the bag is made of kraft paper and / or polyethylene film.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit en référence au dessin schématique annexé représentant, à titre d'exemple, une forme de réalisation de ce sac.In any case, the invention will be better understood from the description which follows with reference to the attached schematic drawing showing, by way of example, an embodiment of this bag.

Figure 1 en est une vue en perspective ; Figure 2 est une vue de face du sac, en position non remplie et pliée de celui-ci.Figure 1 is a perspective view; Figure 2 is a front view of the bag, in the unfilled and folded position thereof.

Figure 3 est une vue de l'extrémité du sac recouverte par la bande équipée de la poignée ;Figure 3 is a view of the end of the bag covered by the band equipped with the handle;

Figure 4 est une vue de dessous de la bande destinée à être collée contre l'extrémité correspondante du sac ;Figure 4 is a bottom view of the strip to be glued against the corresponding end of the bag;

Figure 5 est une vue correspondant à la figure 3, la bande étant décollée de l'extrémité correspondante ;Figure 5 is a view corresponding to Figure 3, the strip being peeled from the corresponding end;

Figure 6 est une vue agrandie de la section de la bande équipée de la poignée. La figure 1 représente un sac 1 en papier kraft, destiné à contenir un produit pulvérulent.Figure 6 is an enlarged view of the section of the band equipped with the handle. Figure 1 shows a bag 1 of kraft paper, intended to contain a powdery product.

Celui-ci comporte une paroi 2 d e forme générale tubulaire délimitant une poche, une première et une seconde extrémités 3, 4. Le sac présente des lignes de pliage latérales 5, comme cela est connu en soi. Comme cela apparaît plus particulièrement aux figures 2 et 5, la première extrémité 3, comporte des rabats 6, 7 repliés et encollés de manière à fermer l'extrémité correspondante. Les rabats 6, 7 comportent une partie non encollée 8 agencée pour former une ouverture lors de leur déploiement.It comprises a wall 2 of generally tubular shape delimiting a pocket, a first and a second end 3, 4. The bag has lateral fold lines 5, as is known per se. As appears more particularly in Figures 2 and 5, the first end 3 comprises flaps 6, 7 folded and glued so as to close the corresponding end. The flaps 6, 7 comprise an unsized portion 8 arranged to form an opening during their deployment.

La seconde extrémité 4 comporte également des rabats plies et encollés. Ces derniers sont encollés entièrement de sorte qu'il n'est pas possible de déployer lesdits rabats.The second end 4 also has flaps folded and glued. These are glued entirely so that it is not possible to deploy said flaps.

Les rabats des premières et secondes extrémités 3, 4 présentent les mêmes formes générales.The flaps of the first and second ends 3, 4 have the same general shapes.

Comme cela est mieux visible à la figure 5, chaque rabat 6, 7 présente une forme trapézoïdale. En outre, chaque extrémité 3, 4 du sac présente une forme générale rectangulaire.As best seen in Figure 5, each flap 6, 7 has a trapezoidal shape. In addition, each end 3, 4 of the bag has a generally rectangular shape.

Un premier rabat, dénommé ci-après rabat inférieur 6, est recouvert en partie par un second rabat, dénommé ci-après rabat supérieur 7.A first flap, hereinafter referred to as lower flap 6, is covered in part by a second flap, hereinafter referred to as upper flap 7.

Dans le cas des rabats 6, 7 de la première extrémité 3, seuls les côtés latéraux 9 des trapèzes sont encollés alors que les bases 8 sont laissées libres de manière à former l'ouverture précitée.In the case of the flaps 6, 7 of the first end 3, only the lateral sides 9 of the trapeziums are glued while the bases 8 are left free so as to form the aforementioned opening.

De plus, le sac 1 comporte une bande 11 réalisée en un matériau résistant au déchirement et comprenant une poignée 12. Cette bande 11 est collée sur la première extrémité 3 du sac, de manière à recouvrir les rabats correspondants. Comme cela est représenté à la figure 6, la bande 11 est formée dans un complexe comportant une armature centrale 13 se présentant sous la forme d'une grille, recouverte sur chacune de ses deux faces par une feuille en polyéthylène 14 et par une feuille en papier 15.In addition, the bag 1 comprises a strip 11 made of a tear-resistant material and comprising a handle 12. This strip 11 is bonded to the first end 3 of the bag, so as to cover the corresponding flaps. As shown in FIG. 6, the strip 11 is formed in a complex comprising a central reinforcement 13 in the form of a grid, covered on each of its two faces by a polyethylene sheet 14 and by a sheet paper 15.

La bande 11 comporte deux découpes longitudinales 16, délimitant la poignée 12 pouvant être saisie par l'utilisateur, par décollement de celle-ci. Plus particulièrement, lors du décollement de la poignée 12, la couche de papier 15 tournée du côté des rabats 6, 7 et collée à ceux-ci n'est pas décollée du sac 1 et se détache du reste du complexe précité. Cette couche de papier 15 se désolidarise ainsi de la couche de polyéthylène 14 correspondante. Comme cela est mieux visible à la figure 4, la bande 11 comporte, sur sa surface destinée à être encollée, un ruban 17 en polyéthylène s'étendant longitudinalement sur toute la longueur de la bande 11.The band 11 comprises two longitudinal cutouts 16 delimiting the handle 12 which can be grasped by the user, by detaching it. More particularly, during the detachment of the handle 12, the paper layer 15 turned on the side of the flaps 6, 7 and glued thereto is not detached from the bag 1 and is detached from the rest of the aforementioned complex. This paper layer 15 thus separates from the corresponding polyethylene layer 14. As best seen in FIG. 4, the strip 11 comprises, on its surface intended to be glued, a polyethylene tape 17 extending longitudinally along the entire length of the strip 11.

Lors de l'encollage de la bande 11 , une colle à base de latex est appliquée sur la surface correspondante de la bande, cette colle prenant uniquement sur la surface de papier 15 et non sur le ruban 17 en polyéthylène. Le ruban 17 est agencé de sorte que, lors de l'application de la bande 11 encollée sur la première extrémité 3 du sac, le ruban 17 recouvre la base 8 du rabat supérieur 7.During the gluing of the strip 11, a latex-based glue is applied to the corresponding surface of the strip, this glue taking only on the surface of paper 15 and not on the ribbon 17 made of polyethylene. The ribbon 17 is arranged so that, during the application of the band 11 glued on the first end 3 of the bag, the ribbon 17 covers the base 8 of the upper flap 7.

Après fixation de la bande 1 1 sur l'extrémité 3 du sac 1 , une zone 18 déborde du sac de manière à permettre la préhension de la bande 1 1 . La zone de préhension 18 ainsi formée est délimitée schématiquement par des traits en pointillés 19 sur les figures.After fixing the band 1 1 on the end 3 of the bag 1, an area 18 protrudes from the bag so as to allow the gripping of the band 1 January. The gripping zone 18 thus formed is schematically delimited by dotted lines 19 in the figures.

Lorsque l'utilisateur souhaite ouvrir le sac, il lui suffit de procéder de la manière suivante. Tout d'abord, l'utilisateur saisit la zone de préhension 18 de la bande 11 puis décolle ladite bande de la première extrémité 3. De même que précédemment, la feuille de papier 15 encollée reste fixée sur la première extrémité 3.When the user wishes to open the bag, it suffices to proceed as follows. Firstly, the user grasps the gripping zone 18 of the strip 11 and then strips said strip from the first end 3. As before, the sheet of glued paper remains fixed on the first end 3.

Comme cela est représenté à la figure 5, la base 8 du rabat supérieur 7 n'est pas recouverte par la feuille du papier restante 15 puisque la base 8 est recouverte par le ruban 17. Il est ainsi possible de dégager immédiatement et complètement l'ouverture ménagée entre les rabats 6 et 7 pour permettre de vider tout ou partie du contenu du sac.As shown in FIG. 5, the base 8 of the upper flap 7 is not covered by the sheet of the remaining paper 15 since the base 8 is covered by the ribbon 17. It is thus possible to immediately and completely release the opening formed between the flaps 6 and 7 to allow emptying all or part of the contents of the bag.

L'ouverture des rabats 6, 7 est facilitée par le fait que les bases 8 ne sont pas encollées. En outre, les côtés latéraux 7 des rabats 6, 7 sont facilement décollés, de sorte que le déploiement des rabats 6, 7 peut être soit aisément effectué à la main, soit exercé directement par le poids du produit pulvérulent lors du basculement du sac 1 par l'utilisateur. Ceci est facilité par le fait qu'il est possible à l'utilisateur de glisser la main entre le rabat supérieur 7 et le rabat inférieur 6, au niveau des bases 8.The opening of the flaps 6, 7 is facilitated by the fact that the bases 8 are not glued. In addition, the lateral sides 7 of the flaps 6, 7 are easily peeled, so that the deployment of the flaps 6, 7 can be easily done by hand, or exerted directly by the weight of the powdery product during the tilting of the bag 1 by the user. This is facilitated by the fact that it is possible for the user to slide the hand between the upper flap 7 and the lower flap 6 at the base 8.

Dans le cas où le sac n'est vidé qu'en partie, la première extrémité 3 du sac 1 peut être à nouveau refermée en repliant les rabats 6, 7, voire en collant une bande adhésive additionnelle au niveau de cette extrémité 3.In the case where the bag is only partly emptied, the first end 3 of the bag 1 can be closed again by folding the flaps 6, 7 or even by sticking an additional adhesive strip at this end 3.

L'invention fournit ainsi un sac pouvant être porté puis ouvert rapidement, sans nécessiter de manipulation entre le portage et l'ouverture du sac, ce dernier pouvant en outre être refermé lorsqu'une partie seulement de son contenu est utilisée.The invention thus provides a bag that can be worn and opened quickly without requiring manipulation between porting and opening the bag, the latter can also be closed when only part of its contents is used.

Comme il va de soi l'invention ne se limite pas à la seule forme de réalisation de ce sac, décrite ci-dessus à titre d'exemple, mais elle embrasse au contraire toutes les variantes. It goes without saying that the invention is not limited to the sole embodiment of this bag, described above as an example, but it encompasses all variants.

Claims

REVENDICATIONS 1 . Sac (1 ), destiné à contenir un produit pulvérulent, comportant une paroi (2) de forme générale tubulaire délimitant une poche, une première et une seconde extrémités (3, 4), l'une (3) au moins des extrémités comportant des rabats (6, 7) repl iés et encollés de man ière à fermer l'extrémité correspondante (3), le sac (1 ) comportant en outre une bande (11 ), réalisée en un matériau résistant au déchirement et comprenant une poignée (12), collée sur l'extrémité (3) du sac de manière à recouvrir les rabats (6, 7), caractérisé en ce que les rabats (6, 7) comportent une partie (8) non encollée agencée pour faciliter leur décollement, soit à la main par un utilisateur, soit sous l'effet du poids du produit pulvérulent lors du basculement du sac par l'utilisateur et former ainsi une ouverture lors de leur déploiement, la bande (11 ) comportant une zone non encollée (17) venant en regard de la partie non encollée (8) des rabats (6,7).1. Bag (1), intended to contain a powdery product, comprising a wall (2) of generally tubular shape delimiting a pocket, a first and a second end (3, 4), at least one (3) end having flaps (6, 7) folded and glued so as to close the corresponding end (3), the bag (1) further comprising a strip (11), made of a tear-resistant material and comprising a handle (12); ), glued on the end (3) of the bag so as to cover the flaps (6, 7), characterized in that the flaps (6, 7) comprise an unsized part (8) arranged to facilitate their detachment, either in the hand by a user, either under the effect of the weight of the powdery product during the tilting of the bag by the user and thus form an opening during their deployment, the strip (11) having a non-glued area (17) coming from facing the unsized portion (8) of the flaps (6, 7). 2. Sac (1 ) selon la revendication 1 , caractérisé en ce que la zone non encollée de la bande (11 ) comporte un ruban (17) sur lequel la colle ne prend pas lors de son application sur ladite bande (11 ).2. Bag (1) according to claim 1, characterized in that the unsized area of the strip (11) comprises a ribbon (17) on which the adhesive does not take during its application on said strip (11). 3. Sac (1 ) selon la revendication 2, caractérisé en ce que le ruban (17) est réalisé en polyéthylène.3. Bag (1) according to claim 2, characterized in that the ribbon (17) is made of polyethylene. 4. Sac (1 ) selon l'une des revendications 1 à 3, caractérisé en ce que la bande (11 ) est collée sur le sac à l'aide d'une colle à base de latex.4. Bag (1) according to one of claims 1 to 3, characterized in that the strip (11) is glued to the bag with a latex-based glue. 5. Sac (1 ) selon l'une des revendications 1 à 4, caractérisé en ce que la bande (11 ) en matériau résistant au déchirement est un complexe comportant une armature (13).5. Bag (1) according to one of claims 1 to 4, characterized in that the strip (11) of tear-resistant material is a complex comprising a frame (13). 6. Sac (1 ) selon la revendication 5, caractérisé en ce que le complexe comporte au moins une couche (13) réalisée dans un matériau en forme de grille, destiné à former une armature, et sur chaque face de l'armature, au moins un film (14) en matériau synthétique, par exemple en polyéthylène, et au moins une feuille (15) en papier. 6. Bag (1) according to claim 5, characterized in that the complex comprises at least one layer (13) made of a material in the form of a grid, intended to form a frame, and on each side of the frame, to at least one film (14) of synthetic material, for example polyethylene, and at least one sheet (15) of paper. 7. Sac (1 ) selon l'une des revendications 1 à 6, caractérisé en ce que la bande (11 ) comporte, à l'une au moins de ses extrémités, une zone (18) débordant du sac et permettant la préhension de la bande (11 ) afin de faciliter son décollage.7. Bag (1) according to one of claims 1 to 6, characterized in that the strip (11) comprises, at least one of its ends, an area (18) projecting from the bag and allowing the gripping of the strip (11) to facilitate its takeoff. 8. Sac (1 ) selon l'une des revendications 1 à 7, caractérisé en ce que la poignée (12) est formée par au moins une découpe (16) ménagée dans la bande.8. Bag (1) according to one of claims 1 to 7, characterized in that the handle (12) is formed by at least one cutout (16) formed in the strip. 9. Sac (1 ) selon l'une des revendications 1 à 8, caractérisé en ce que l'autre (4) des extrémités comporte des rabats repliés et encollés.9. Bag (1) according to one of claims 1 to 8, characterized in that the other (4) of the ends comprises folded flaps and glued. 10. Sac (1 ) selon la revendication 9, caractérisé en ce que l'autre des extrémités (4) comporte une bande de renfort (10) encollée sur les rabats correspondants.10. Bag (1) according to claim 9, characterized in that the other end (4) comprises a reinforcing strip (10) glued on the corresponding flaps. 11. Sac (1 ) selon l'une des revendications 1 à 10, caractérisé en ce qu'il est réalisé en papier kraft et/ou en film polyéthylène. 11. Bag (1) according to one of claims 1 to 10, characterized in that it is made of kraft paper and / or polyethylene film.
PCT/FR2009/050515 2008-04-01 2009-03-25 Bag intended to contain a pulverulent product Ceased WO2009125134A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES09729688T ES2408115T3 (en) 2008-04-01 2009-03-25 Bag intended to contain a powdery product
EP09729688A EP2257474B1 (en) 2008-04-01 2009-03-25 Bag intended to contain a pulverulent product

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0801794A FR2929251B1 (en) 2008-04-01 2008-04-01 BAG FOR CONTAINING A PULVERULENT PRODUCT
FR08/01794 2008-04-01

Publications (1)

Publication Number Publication Date
WO2009125134A1 true WO2009125134A1 (en) 2009-10-15

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PCT/FR2009/050515 Ceased WO2009125134A1 (en) 2008-04-01 2009-03-25 Bag intended to contain a pulverulent product

Country Status (4)

Country Link
EP (1) EP2257474B1 (en)
ES (1) ES2408115T3 (en)
FR (1) FR2929251B1 (en)
WO (1) WO2009125134A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018105191U1 (en) * 2018-09-11 2019-12-12 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Bag for bulk goods

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010055777B4 (en) * 2010-12-23 2012-11-22 Mondi Ag bag
FR3051449B1 (en) * 2016-05-20 2018-05-11 Vicat INDUSTRIAL BAG WITH A CLOSURE AND OPENING SYSTEM COMPRISING AN ARRAYABLE BACKGROUND BAND AND METHOD OF MANUFACTURING SUCH BAG
CN107878906A (en) * 2017-11-08 2018-04-06 繁昌县晶鑫贸易有限公司 A kind of building mortar packaging bag

Citations (3)

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Publication number Priority date Publication date Assignee Title
FR2692868A1 (en) * 1992-06-24 1993-12-31 Calcia Paper sack for cement powder - includes reinforced handles arranged on top surface and side face and extending across width of bag
DE20316991U1 (en) * 2003-11-05 2003-12-24 Bischof + Klein Gmbh & Co. Kg Cover sheet for sack, bag or the like. packagings
DE202006004476U1 (en) * 2006-03-21 2006-05-11 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Paper sack has top sheet which is connected to tubular body of sack and cover sheet which fits over this, has overlapping sections covering connections of top sheet with sack walls and contains handle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692868A1 (en) * 1992-06-24 1993-12-31 Calcia Paper sack for cement powder - includes reinforced handles arranged on top surface and side face and extending across width of bag
DE20316991U1 (en) * 2003-11-05 2003-12-24 Bischof + Klein Gmbh & Co. Kg Cover sheet for sack, bag or the like. packagings
DE202006004476U1 (en) * 2006-03-21 2006-05-11 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Paper sack has top sheet which is connected to tubular body of sack and cover sheet which fits over this, has overlapping sections covering connections of top sheet with sack walls and contains handle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018105191U1 (en) * 2018-09-11 2019-12-12 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Bag for bulk goods

Also Published As

Publication number Publication date
EP2257474B1 (en) 2012-10-31
ES2408115T3 (en) 2013-06-18
FR2929251B1 (en) 2010-04-02
EP2257474A1 (en) 2010-12-08
FR2929251A1 (en) 2009-10-02

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