EP0627366B1 - Pack of sheets for packaging foodstuffs and other products - Google Patents

Pack of sheets for packaging foodstuffs and other products Download PDF

Info

Publication number
EP0627366B1
EP0627366B1 EP19940401193 EP94401193A EP0627366B1 EP 0627366 B1 EP0627366 B1 EP 0627366B1 EP 19940401193 EP19940401193 EP 19940401193 EP 94401193 A EP94401193 A EP 94401193A EP 0627366 B1 EP0627366 B1 EP 0627366B1
Authority
EP
European Patent Office
Prior art keywords
sheets
thickness
fold
sheet
bundle
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.)
Expired - Lifetime
Application number
EP19940401193
Other languages
German (de)
French (fr)
Other versions
EP0627366A1 (en
Inventor
Guy Rullier De Bettex
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.)
FICOPA
Original Assignee
FICOPA
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 FICOPA filed Critical FICOPA
Publication of EP0627366A1 publication Critical patent/EP0627366A1/en
Application granted granted Critical
Publication of EP0627366B1 publication Critical patent/EP0627366B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession

Definitions

  • the present invention relates to a bundle of detachable sheets which can be used for packaging foodstuffs or other products.
  • Document FR-A-2 247 071 describes a bundle of packaging sheets in which the different sheets, previously cut to the desired format, are joined together by gluing, stapling, or riveting, and include a separation or perforation line allowing the detachment of the sheets by simple manual traction on a gripping means.
  • Gripping means envisaged in this French patent consist either of a fold made in one of the lower corners of the sheets or a fold made along the lower edge of the sheets.
  • Document FR-A-2 269 425 which is an addition to FR-A-2 247 071 also describes a bundle of packaging sheets similar to that of the main patent, the sheets of which may include, as gripping means, holes provided in each of the sheets to allow the insertion of a finger of the user and thus facilitate the grasping of the sheet, ie an embossing along the lower edge of the sheets.
  • the presence of a fold at the bottom of each of the sheets of the bundle has the disadvantage of doubling the thickness of the bottom of the bundle at the folds, because each fold consists of a double thickness of leaf.
  • the presence of these folds and this difference in thickness of the bundle makes it difficult to receive the sheets at the end of the machine which performs the folds because it is not possible to automatically store the leaves which, due to the presence of double thickness at one end, do not form a regular parallelepiped.
  • the presence of this extra thickness at one end of the sheets and of the bundle does not allow automatic counting, with separation of packets from a given number of sheets in order to individualize identical bundles. For this reason, the bundles were until now sold by weight, from an approximate thickness, which prohibited the marketing of a perfectly standardized product.
  • the object of the present invention is therefore to provide a bundle of sheets overcoming the above drawbacks.
  • the object of the invention is to provide a bundle of sheets, the sheets of which can be easily grasped and detached by a user, one by one, without contact with the other sheets of the bundle, which guarantees good hygiene.
  • Another object of the invention is to provide a bundle of sheets which does not have any extra thickness, resulting in a gradual winding of the sheets.
  • Another object of the invention is to provide a bundle of sheets having a determined number of sheets, this number being determined by automatic counting of each of the sheets during the manufacture of the bundle.
  • the present invention aims to provide bundles of sheets having a practically constant thickness maintained over the entire length of the bundle, thus allowing more regular packaging of the bundles during their packaging for dispatch.
  • a bundle of sheets is produced in which the different sheets, previously cut to the desired format, are joined together along a first transverse edge and are each provided, in a second transverse edge opposite the first transverse edge, gripping means consisting of a fold characterized in that the thickness of each sheet is reduced, in an area adjacent to the second transverse edge of width at least equal to the width of the fold, by a value between 20 and 40% compared to the initial thickness of the sheet.
  • the zone of reduced thickness has a width equal to that of the fold.
  • the zone of reduced thickness has a width twice that of the fold.
  • each sheet of the bundle may also include an embossing formed along the first transverse edge, this embossing preferably being such that the thickness of each sheet at the level of the embossing is approximately equal to the total thickness of each sheet at the fold area formed along the second transverse edge.
  • the sheets which can be used in the bundles of the present invention are all sheets such as sheets of paper, translucent or opaque, and in particular sheets of paper intended for packaging, for example of food products.
  • the sheets can also be coated on one side, for example with products suitable for contact with food products, such as only paraffin.
  • the sheets used for the bundles of the present invention have a grammage between 20 and 50 g / m 2 , and the grammage chosen being a function of the intended use.
  • the sheets of the bundles of the present invention are joined together along the first transverse edge by gluing, stapling or riveting, and preferably comprise near this first transverse edge and parallel to this a line of separation or perforation allowing easy detachment of the sheets by simple manual pulling on the gripping means.
  • the bundle may also include, in the vicinity of the first transverse edge, one or more openings such as holes, allowing its adaptation to a hook, peg or suction cup, for attachment to a wall close to the user.
  • each sheet of the bundle of sheets according to the invention comprises a gripping means constituted by a fold formed along the second transverse edge of the sheet, opposite to the first transverse edge.
  • this fold extends over the entire length of the second transverse edge parallel to this edge, but could also consist of a fold formed in one of the corners of the second transverse edge.
  • the fold has a sufficient width to allow easy gripping of the sheets and which avoids excessive consumption of paper.
  • the fold will have a width of between 15 and 30 mm, a width of 25 mm being recommended.
  • the thickness of each of the sheets of the bundle is reduced, in an area adjacent to the second transverse edge of width at least equal to the width of the fold, by a value of between 20 and 40% relative to the initial thickness of the sheet, preferably 30%.
  • the width of the reduced thickness zone is as indicated at least equal to the intended width of the fold, that is to say the width of the part of the sheet intended to be folded up to form the fold or flap.
  • the initial thickness of the sheet is that of the sheet before any reduction in thickness.
  • the width of the zone of reduced thickness is twice that of the fold or flap, in other words the zone of reduced thickness comprises the fold or flap and the surface of the sheet immediately below this fold or flap.
  • a reduction of more than 40% in the thickness of the sheet would be difficult to achieve and would risk weakening the fold to such an extent that the sheet would tear at this fold during use. Reducing the thickness of the sheet by less than 20% does not reliably provide the advantages of the present invention.
  • the zone of reduced thickness of the sheets can be produced by laminating, between two knurls, a continuous strip of paper in a zone adjacent to a transverse edge of the strip.
  • the knobs can be heated to increase the calendering and therefore reduce the thickness of the paper at the fold.
  • the thickness reduction can be adjusted.
  • the fold is then formed in a conventional manner and the strip is cut into sheets which are received, at the end of the machine, under form of regular parallelepiped bundles.
  • an embossing having a width of between 1 and 5 cm and preferably 2 and 3 cm.
  • the embossing is such that the thickness of the sheet, at the level of this embossing, is equal to the thickness, approximately, at the level of the fold formed in the second transverse edge of the sheet.
  • a bundle of sheets 1 according to the present invention.
  • the bundle of sheets is held in a rigid support 7, for example of cardboard, for the transport or the distribution of the sheets of the bundle.
  • the support comprises a rigid bottom element of dimension greater than the sheets, a portion of which, projecting beyond a first transverse edge 3 of the sheets, is provided with openings 9, for example holes to allow attachment to a wall.
  • the support further comprises a flap which encloses the bundle of sheets over it and which is fixed so as to hold all of the sheets along the first transverse edge by means, for example, of staples 8.
  • Each of the sheets of the bundle comprises parallel to the first transverse edge and slightly below the staples 8 a transverse line of perforation allowing easy separation of the sheets.
  • a fold or flap 5a is formed, along a fold line 4a, along each of the second transverse edges 4 of the sheets 2, opposite the first transverse edge 3 of the sheets.
  • the thickness of each sheet has been reduced in an area 5 adjacent to the second transverse edge of the sheet by a value of 30% relative to the initial thickness of the sheet. As shown in FIG. 2, this zone of reduced thickness 5a in the embodiment shown has a width equal to the width of the fold or flap 5a.
  • FIG. 4 shows another recommended embodiment of a bundle of sheets according to the invention.
  • This bundle is generally similar to the bundle shown in Figures 1 to 3 but further comprises an embossing produced in the upper part of each of the sheets 2 of the bundle parallel to the first transverse edge 3 of each of the sheets, near the latter, and preferably slightly below the perforation line 6.
  • the embossing of each sheet 2 is such that the thickness of each sheet, at the level of the embossing 10, is equal to approximately the total thickness of each sheet at the level of the fold 5a, that is to say the sum of the thicknesses of fold 5a and of the surface of the sheet directly below this fold.
  • the embossing 10 will therefore preferably result in an increased thickness of the sheet in the embossing area. about 70% compared to the initial thickness of the sheet.
  • the bundle of sheets has practically equal thicknesses at its two opposite transverse ends leading to bundles of more regular parallelepipedic sheets, the number of sheets of which can be predetermined.
  • this embossing has a width of between 2 and 3 cm.
  • a bundle of sheets is thus obtained which has a practically regular thickness and comprising a predetermined number of sheets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Special Articles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packages (AREA)

Description

La présente invention concerne une liasse de feuilles détachables pouvant servir au conditionnement de denrées alimentaires ou d'autres produits.The present invention relates to a bundle of detachable sheets which can be used for packaging foodstuffs or other products.

Le document FR-A-2 247 071 décrit une liasse de feuilles d'emballage dans laquelle les différentes feuilles, préalablement découpées au format voulu, sont réunies entre elles par collage, agrafage, ou rivetage, et comportent une ligne de séparation ou de perforation permettant le détachement des feuilles par simple traction manuelle sur un moyen de préhension. Des moyens de préhension envisagés dans ce brevet français se composent soit d'un pli pratiqué dans un des coins inférieurs des feuilles soit un pli pratiqué le long du bord inférieur des feuilles.Document FR-A-2 247 071 describes a bundle of packaging sheets in which the different sheets, previously cut to the desired format, are joined together by gluing, stapling, or riveting, and include a separation or perforation line allowing the detachment of the sheets by simple manual traction on a gripping means. Gripping means envisaged in this French patent consist either of a fold made in one of the lower corners of the sheets or a fold made along the lower edge of the sheets.

Le document FR-A-2 269 425, qui est une addition au FR-A-2 247 071 décrit également une liasse de feuilles d'emballage analogue à celle du brevet principal dont les feuilles peuvent comporter comme moyens de préhension soit des trous aménagés dans chacune des feuilles pour permettre l'insertion d'un doigt de l'utilisateur et ainsi faciliter la saisie de la feuille soit un gaufrage le long du bord inférieur des feuilles.Document FR-A-2 269 425, which is an addition to FR-A-2 247 071 also describes a bundle of packaging sheets similar to that of the main patent, the sheets of which may include, as gripping means, holes provided in each of the sheets to allow the insertion of a finger of the user and thus facilitate the grasping of the sheet, ie an embossing along the lower edge of the sheets.

En pratique, seuls les moyens de préhension constitués par des plis formés dans les coins inférieurs de la feuille ou le long du bord inférieur de la feuille se sont avérés efficaces pour une meilleure saisie des feuilles de la liasse.In practice, only the gripping means constituted by folds formed in the lower corners of the sheet or along the lower edge of the sheet have proved effective for better grasping of the sheets of the bundle.

Toutefois ces liasses de feuilles présentent un certain nombre d'inconvénients.However, these bundles of leaves have a certain number of drawbacks.

En particulier, la présence d'un pli à la partie inférieure de chacune des feuilles de la liasse a pour inconvénient de doubler l'épaisseur de la partie inférieure de la liasse au niveau des plis, car chaque pli est constitué par une double épaisseur de feuille. La présence de ces plis et de cette différence d'épaisseur de la liasse font que la réception des feuilles en bout de la machine qui réalise les plis est difficile car il n'est pas possible de ranger automatiquement les feuilles qui, du fait de la présence de l'épaisseur double à une extrémité, ne forment pas un parallélépipède régulier. De plus, la présence de cette surépaisseur à une extrémité des feuilles et de la liasse ne permet pas un comptage automatique, avec séparation de paquets d'un nombre de feuilles donné afin d'individualiser des liasses identiques. Pour cette raison, les liasses étaient jusqu'à présent vendues au poids, à partir d'une épaisseur approximative, ce qui interdisait une commercialisation d'un produit parfaitement normalisé.In particular, the presence of a fold at the bottom of each of the sheets of the bundle has the disadvantage of doubling the thickness of the bottom of the bundle at the folds, because each fold consists of a double thickness of leaf. The presence of these folds and this difference in thickness of the bundle makes it difficult to receive the sheets at the end of the machine which performs the folds because it is not possible to automatically store the leaves which, due to the presence of double thickness at one end, do not form a regular parallelepiped. In addition, the presence of this extra thickness at one end of the sheets and of the bundle does not allow automatic counting, with separation of packets from a given number of sheets in order to individualize identical bundles. For this reason, the bundles were until now sold by weight, from an approximate thickness, which prohibited the marketing of a perfectly standardized product.

Enfin, la présence de cette surépaisseur, ne permettait pas un rangement rationnel des liasses dans une caisse en carton ondulé ce qui conduisait à un remplissage insuffisant de l'emballage avec des risques d'endommagement des liasses qui se superposaient irrégulièrement.Finally, the presence of this extra thickness, did not allow a rational arrangement of the bundles in a corrugated cardboard box which led to an insufficient filling of the packaging with risks of damage to the bundles which overlapped irregularly.

D'autre part, cette surépaisseur conduisait à une nécessaire limitation de l'épaisseur des liasses pour éviter que la surépaisseur à la base de chacune des liasses ne se traduise par un enroulement en dégradé des feuilles rendant difficile leur préhension. En effet, comme il n'est pas possible de saisir les feuilles par le pli de bas en haut, lorsque la surépaisseur est importante l'enroulement en dégradé des feuilles oblige à aller chercher les feuilles à l'intérieur du creux résultant de la superposition des plis. Ainsi lorsque la liasse comprend un nombre de feuilles important on perd l'avantage d'une préhension aisée des feuilles.On the other hand, this extra thickness led to a necessary limitation of the thickness of the bundles to prevent the excess thickness at the base of each of the bundles from resulting in a degraded winding of the sheets making their gripping difficult. Indeed, as it is not possible to grasp the sheets by the fold from bottom to top, when the extra thickness is significant, the gradual rolling of the sheets means that the sheets have to be picked up inside the hollow resulting from the superposition folds. Thus when the bundle includes a large number of sheets, the advantage of easy gripping of the sheets is lost.

La présente invention a donc pour objet de fournir une liasse de feuilles remédiant aux inconvénients ci-dessus.The object of the present invention is therefore to provide a bundle of sheets overcoming the above drawbacks.

Plus particulièrement, l'invention a pour objet de fournir une liasse de feuilles dont les feuilles peuvent être aisément saisies et détachées par un utilisateur, une à une, sans contact avec les autres feuille de la liasse, ce qui garantit une bonne hygiène.More particularly, the object of the invention is to provide a bundle of sheets, the sheets of which can be easily grasped and detached by a user, one by one, without contact with the other sheets of the bundle, which guarantees good hygiene.

L'invention a également pour but de fournir une liasse de feuilles qui ne présente pas de surépaisseur se traduisant par un enroulement en dégradé des feuilles.Another object of the invention is to provide a bundle of sheets which does not have any extra thickness, resulting in a gradual winding of the sheets.

L'invention a encore pour but de fournir une liasse de feuilles ayant un nombre déterminé de feuilles, ce nombre étant déterminé par comptage automatique de chacune des feuilles lors de la fabrication de la liasse.Another object of the invention is to provide a bundle of sheets having a determined number of sheets, this number being determined by automatic counting of each of the sheets during the manufacture of the bundle.

Enfin, la présente invention a pour but de fournir des liasses de feuilles ayant une épaisseur pratiquement constante maintenue sur toute la longueur de la liasse, permettant ainsi un emballage plus régulier des liasses lors de leur conditionnement pour expédition.Finally, the present invention aims to provide bundles of sheets having a practically constant thickness maintained over the entire length of the bundle, thus allowing more regular packaging of the bundles during their packaging for dispatch.

Selon la présente invention on réalise une liasse de feuilles dans laquelle les différentes feuilles, préalablement découpées au format désiré, sont réunies entre elles le long d'un premier bord transversal et sont chacune pourvues, dans un deuxième bord transversal opposé au premier bord transversal, d'un moyen de préhension constitué par un pli caractérisé en ce que l'épaisseur de chaque feuille est réduite, dans une zone adjacente au deuxième bord transversal de largeur au moins égale à la largeur du pli, d'une valeur comprise entre 20 et 40% par rapport à l'épaisseur initiale de la feuille.According to the present invention, a bundle of sheets is produced in which the different sheets, previously cut to the desired format, are joined together along a first transverse edge and are each provided, in a second transverse edge opposite the first transverse edge, gripping means consisting of a fold characterized in that the thickness of each sheet is reduced, in an area adjacent to the second transverse edge of width at least equal to the width of the fold, by a value between 20 and 40% compared to the initial thickness of the sheet.

Dans une première réalisation, la zone d'épaisseur réduite a une largeur égale à celle du pli.In a first embodiment, the zone of reduced thickness has a width equal to that of the fold.

Dans une seconde réalisation, la zone d'épaisseur réduite a une largeur double de celle du pli.In a second embodiment, the zone of reduced thickness has a width twice that of the fold.

Le fait de réaliser une zone d'épaisseur réduite de largeur double par rapport à la largeur du pli proprement dit permet d'obtenir une réduction encore plus importante de l'épaisseur de la liasse au niveau du pli, en particulier d'obtenir une épaisseur pratiquement identique aux deux extrémités de la liasse.The fact of making an area of reduced thickness of double width compared to the width of the fold itself makes it possible to obtain an even greater reduction in the thickness of the bundle at the level of the fold, in particular to obtain a thickness practically identical at both ends of the bundle.

Selon une autre réalisation recommandée de l'invention, chaque feuille de la liasse peut en outre comporter un gaufrage formé le long du premier bord transversal, ce gaufrage étant de préférence tel que l'épaisseur de chaque feuille au niveau du gaufrage est environ égale à l'épaisseur totale de chaque feuille au niveau de la zone du pli formé le long du second bord transversal.According to another recommended embodiment of the invention, each sheet of the bundle may also include an embossing formed along the first transverse edge, this embossing preferably being such that the thickness of each sheet at the level of the embossing is approximately equal to the total thickness of each sheet at the fold area formed along the second transverse edge.

Les feuilles utilisables dans les liasses de la présente invention sont toutes feuilles telles que des feuilles de papier, translucides ou opaques, et en particulier des feuilles de papier destinées à l'emballage, par exemple de produits alimentaires. Les feuilles peuvent également être enduites sur une des faces, par exemple par des produits convenant pour le contact avec des produits alimentaires, tels que de la paraffine. De préférence, les feuilles utilisées pour les liasses de la présente invention ont un grammage compris entre 20 et 50 g/m2, et le grammage choisi étant fonction de l'utilisation envisagée.The sheets which can be used in the bundles of the present invention are all sheets such as sheets of paper, translucent or opaque, and in particular sheets of paper intended for packaging, for example of food products. The sheets can also be coated on one side, for example with products suitable for contact with food products, such as only paraffin. Preferably, the sheets used for the bundles of the present invention have a grammage between 20 and 50 g / m 2 , and the grammage chosen being a function of the intended use.

Les feuilles des liasses de la présente invention sont réunies entre elles le long du premier bord transversal par collage, agrafage ou rivetage, et de préférence comportent à proximité de ce premier bord transversal et parallèlement à celui-ci une ligne de séparation ou de perforation permettant le détachement aisé des feuilles par simple traction manuelle sur le moyen de préhension.The sheets of the bundles of the present invention are joined together along the first transverse edge by gluing, stapling or riveting, and preferably comprise near this first transverse edge and parallel to this a line of separation or perforation allowing easy detachment of the sheets by simple manual pulling on the gripping means.

La liasse peut également comporter, au voisinage du premier bord transversal une ou plusieurs ouvertures telles que des trous, permettant son adaptation sur un crochet, piton ou ventouse, en vue d'un accrochage sur une paroi proche de l'utilisateur.The bundle may also include, in the vicinity of the first transverse edge, one or more openings such as holes, allowing its adaptation to a hook, peg or suction cup, for attachment to a wall close to the user.

Comme indiqué, chaque feuille de la liasse de feuilles selon l'invention comprend un moyen de préhension constitué par un pli formé le long du second bord transversal de la feuille, opposé au premier bord transversal. De préférence ce pli s'étend sur toute la longueur du second bord transversal parallèlement à ce bord, mais pourrait également être constitué par un pli formé dans un des coins du second bord transversal. Le pli a une largeur suffisante pour permettre une préhension facile des feuilles et qui évite une consommation trop importante de papier. De préférence le pli aura une largeur comprise entre 15 et 30 mm, une largeur de 25 mm étant recommandée.As indicated, each sheet of the bundle of sheets according to the invention comprises a gripping means constituted by a fold formed along the second transverse edge of the sheet, opposite to the first transverse edge. Preferably this fold extends over the entire length of the second transverse edge parallel to this edge, but could also consist of a fold formed in one of the corners of the second transverse edge. The fold has a sufficient width to allow easy gripping of the sheets and which avoids excessive consumption of paper. Preferably the fold will have a width of between 15 and 30 mm, a width of 25 mm being recommended.

Dans l'art antérieur connu, la réalisation d'un tel pli au niveau du second bord transversal de chacune des feuilles a pour résultat que l'épaisseur totale de la feuille au niveau du pli est le double de l'épaisseur du reste de la feuille et par suite, la liasse a une extrémité dont l'épaisseur est double de l'autre extrémité. Comme indiqué précédemment, cette surépaisseur à une des extrémités de la liasse de feuilles présente plusieurs inconvénients. En particulier, lors de la formation de la liasse, la surépaisseur des feuilles à une extrémité rend difficile la réception des feuilles en bout de machine car il n'est pas possible de ranger automatiquement de telles feuilles qui ne forment pas un parallélépipède régulier. De plus il n'est pas non plus possible d'effectuer un comptage automatique de ces feuilles et une séparation de paquets de feuilles d'un nombre de feuilles donné qui permettrait d'individualiser des liasses identiques. De fait, on vendait les liasses au poids à partir d'une épaisseur approximative.In the known prior art, the production of such a fold at the second transverse edge of each of the sheets has the result that the total thickness of the sheet at the fold is twice the thickness of the rest of the sheet and therefore the bundle has one end whose thickness is double the other end. As indicated above, this extra thickness at one end of the bundle of sheets has several drawbacks. In particular, during the formation of the bundle, the excess thickness of the sheets at one end makes it difficult to receive the sheets at the end of the machine because it is not possible to automatically store such sheets which do not form a regular parallelepiped. Furthermore, it is also not possible to perform an automatic counting of these sheets and a separation of packets of sheets from a given number of sheets which would make it possible to individualize identical bundles. In fact, the bundles were sold by weight from an approximate thickness.

En outre, cette surépaisseur (double épaisseur) d'une extrémité des liasses de feuilles conduisait lorsque les liasses comportaient un nombre important de feuilles à un phénomène d'enroulement en dégradé des feuilles qui rendait difficile leur préhension.In addition, this extra thickness (double thickness) of one end of the bundles of sheets led, when the bundles included a large number of sheets, to a degraded winding phenomenon of the sheets which made gripping difficult.

Selon l'invention, on réduit l'épaisseur de chacune des feuilles de la liasse, dans une zone adjacente au deuxième bord transversal de largeur au moins égale à la largeur du pli, d'une valeur comprise entre 20 et 40% par rapport à l'épaisseur initiale de la feuille, de préférence d'une valeur de 30%. La largeur de la zone d'épaisseur réduite est comme indiqué au moins égale à la largeur prévue du pli, c'est-à-dire de la largeur de la partie de la feuille destinée à être repliée pour former le pli ou rabat. Bien évidemment l'épaisseur initiale de la feuille, est celle de la feuille avant toute réduction d'épaisseur.According to the invention, the thickness of each of the sheets of the bundle is reduced, in an area adjacent to the second transverse edge of width at least equal to the width of the fold, by a value of between 20 and 40% relative to the initial thickness of the sheet, preferably 30%. The width of the reduced thickness zone is as indicated at least equal to the intended width of the fold, that is to say the width of the part of the sheet intended to be folded up to form the fold or flap. Obviously the initial thickness of the sheet is that of the sheet before any reduction in thickness.

Comme mentionné précédemment, dans une autre réalisation de l'invention la largeur de la zone d'épaisseur réduite est double de celle du pli ou rabat, en d'autres termes la zone d'épaisseur réduite comprend le pli ou rabat et la surface de la feuille immédiatement en dessous de ce pli ou rabat.As mentioned previously, in another embodiment of the invention the width of the zone of reduced thickness is twice that of the fold or flap, in other words the zone of reduced thickness comprises the fold or flap and the surface of the sheet immediately below this fold or flap.

Une réduction de plus de 40% de l'épaisseur de la feuille serait difficile à réaliser et risquerait de fragiliser le pli à un point tel que la feuille se déchirerait au niveau de ce pli lors de son utilisation. Une réduction de l'épaisseur de la feuille inférieure à 20% ne permet pas d'obtenir de manière fiable les avantages de la présente invention.A reduction of more than 40% in the thickness of the sheet would be difficult to achieve and would risk weakening the fold to such an extent that the sheet would tear at this fold during use. Reducing the thickness of the sheet by less than 20% does not reliably provide the advantages of the present invention.

Selon l'invention, on peut réaliser la zone d'épaisseur réduite des feuilles par laminage, entre deux molettes, d'une bande continue de papier dans une zone adjacente à un bord transversal de la bande. Les molettes peuvent être chauffées afin d'augmenter le calandrage et donc diminuer l'épaisseur du papier au niveau du pli. En fonction de la pression et de la température choisies, on peut régler la réduction d'épaisseur. Le pli est ensuite formé de façon classique et la bande est découpée en feuilles qui sont reçues, en bout de la machine, sous forme de paquets parallélépipédiques réguliers.According to the invention, the zone of reduced thickness of the sheets can be produced by laminating, between two knurls, a continuous strip of paper in a zone adjacent to a transverse edge of the strip. The knobs can be heated to increase the calendering and therefore reduce the thickness of the paper at the fold. Depending on the pressure and temperature chosen, the thickness reduction can be adjusted. The fold is then formed in a conventional manner and the strip is cut into sheets which are received, at the end of the machine, under form of regular parallelepiped bundles.

Dans une réalisation recommandée pour encore améliorer la régularité de la liasse et éviter, lorsque les feuilles de la liasse sont comprimées, qu'elles risquent d'adhérer les unes aux autres, notamment si elles sont paraffinées et exposées à la chaleur, on prévoit à proximité du premier bord transversal c'est-à-dire le bord transversal opposé au bord pourvu du pli de préhension un gaufrage ayant une largeur comprise entre 1 et 5 cm et de préférence 2 et 3 cm. De préférence, le gaufrage est tel que l'épaisseur de la feuille, au niveau de ce gaufrage, est égale à l'épaisseur, environ, au niveau du pli formé dans le second bord transversal de la feuille.In an embodiment recommended to further improve the regularity of the bundle and to prevent, when the sheets of the bundle are compressed, that they risk adhering to each other, in particular if they are waxed and exposed to heat, provision is made to proximity of the first transverse edge, that is to say the transverse edge opposite the edge provided with the gripping fold, an embossing having a width of between 1 and 5 cm and preferably 2 and 3 cm. Preferably, the embossing is such that the thickness of the sheet, at the level of this embossing, is equal to the thickness, approximately, at the level of the fold formed in the second transverse edge of the sheet.

Dans ces conditions on obtient une liasse ayant une épaisseur pratiquement identique aux deux extrémités.Under these conditions, a bundle is obtained having a thickness practically identical at the two ends.

Ainsi, lors du façonnage, les feuilles découpées viennent se superposer les unes sur les autres sans pression. De l'air reste entre elles évitant ainsi une adhérence trop prononcée entre les feuilles. On maintient également une épaisseur pratiquement constante sur toute la longueur de la liasse. Avec cette réalisation recommandée de la liasse de feuilles, la réception des feuilles est beaucoup plus régulière et permet d'utiliser sur la machine de fabrication de la liasse un système de comptage permettant d'individualiser la liasse avec un nombre programmé de feuilles. Les liasses parallélépipédiques comptées peuvent alors être disposées sur un tapis pour être amenées à un poste d'agrafage automatique.Thus, during shaping, the cut sheets are superimposed on each other without pressure. Air remains between them thus avoiding too pronounced adhesion between the sheets. An almost constant thickness is also maintained over the entire length of the bundle. With this recommended realization of the bundle of sheets, the reception of the sheets is much more regular and makes it possible to use on the machine for manufacturing the bundle a counting system making it possible to individualize the bundle with a programmed number of sheets. The counted parallelepipedic bundles can then be placed on a carpet to be brought to an automatic stapling station.

On réalise ainsi un procédé de fabrication de liasses de feuilles automatique plus rapide et plus économique permettant d'obtenir des liasses plus régulières. Enfin, l'obtention de telles liasses plus régulières permet un rangement plus facile dans les caisses et il est aussi possible de positionner dans une caisse de dimension donnée un plus grand nombre de liasses, les caisses alors contenant la même quantité de liasses ce qui n'était auparavant pas possible du fait de l'irrégularité des liasses.This produces a faster and more economical automatic bundle of sheets making it possible to obtain more regular bundles. Finally, obtaining such more regular bundles allows easier storage in the crates and it is also possible to position in a crate of given size a greater number of bundles, the crates then containing the same quantity of bundles which does not 'was previously not possible due to the irregularity of the bundles.

La suite de la description se réfère aux figures annexées qui représentent, respectivement :

  • figure 1 une vue de face d'une réalisation d'une liasse selon l'invention;
  • figure 2 une vue analogue à la figure 1, mais avec le pli de préhension entièrement ouvert;
  • figure 3 une vue en perspective de la liasse de la figure 1, l'écartement entre les feuilles de la liasse ayant été exagéré pour montrer leur positionnement; et
  • figure 4 une vue de face d'une autre réalisation recommandée de la liasse de feuilles selon l'invention.
The following description refers to the appended figures which represent, respectively:
  • Figure 1 a front view of an embodiment of a bundle according the invention;
  • Figure 2 a view similar to Figure 1, but with the gripping fold fully open;
  • Figure 3 a perspective view of the bundle of Figure 1, the spacing between the sheets of the bundle having been exaggerated to show their positioning; and
  • Figure 4 a front view of another recommended embodiment of the bundle of sheets according to the invention.

Sur les figures où les mêmes numéros de référence représentent les mêmes éléments, et en particulier sur les figures 1 à 3 on a représenté une liasse de feuilles 1 selon la présente invention. Dans ce mode de réalisation recommandé de l'invention la liasse de feuilles est maintenue dans un support rigide 7, par exemple en carton, pour le transport ou la distribution des feuilles de la liasse. Le support comprend un élément de fond rigide de dimension supérieure aux feuilles dont une partie, saillant au-delà d'un premier bord transversal 3 des feuilles, est pourvue d'ouvertures 9, par exemple des trous pour permettre l'accrochage à une paroi. Le support comporte en outre un rabat venant enserrer la liasse de feuilles par-dessus et qui est fixé de façon à maintenir l'ensemble des feuilles le long du premier bord transversal au moyen par exemple d'agrafes 8. Chacune des feuilles de la liasse comprend parallèlement au premier bord transversal et légèrement en dessous des agrafes 8 une ligne transversale de perforation permettant une séparation facile des feuilles. Un pli ou rabat 5a est formé, suivant une ligne de pliure 4a, le long de chacun des seconds bords transversaux 4 des feuilles 2, opposé au premier bord transversal 3 des feuilles. Dans la réalisation représentée l'épaisseur de chaque feuille a été réduite dans une zone 5 adjacente au second bord transversal de la feuille d'une valeur de 30% par rapport à l'épaisseur initiale de la feuille. Comme le montre la figure 2 cette zone d'épaisseur réduite 5a dans la réalisation représentée a une largeur égale à la largeur du pli ou rabat 5a.In the figures where the same reference numbers represent the same elements, and in particular in Figures 1 to 3 there is shown a bundle of sheets 1 according to the present invention. In this recommended embodiment of the invention the bundle of sheets is held in a rigid support 7, for example of cardboard, for the transport or the distribution of the sheets of the bundle. The support comprises a rigid bottom element of dimension greater than the sheets, a portion of which, projecting beyond a first transverse edge 3 of the sheets, is provided with openings 9, for example holes to allow attachment to a wall. . The support further comprises a flap which encloses the bundle of sheets over it and which is fixed so as to hold all of the sheets along the first transverse edge by means, for example, of staples 8. Each of the sheets of the bundle comprises parallel to the first transverse edge and slightly below the staples 8 a transverse line of perforation allowing easy separation of the sheets. A fold or flap 5a is formed, along a fold line 4a, along each of the second transverse edges 4 of the sheets 2, opposite the first transverse edge 3 of the sheets. In the embodiment shown, the thickness of each sheet has been reduced in an area 5 adjacent to the second transverse edge of the sheet by a value of 30% relative to the initial thickness of the sheet. As shown in FIG. 2, this zone of reduced thickness 5a in the embodiment shown has a width equal to the width of the fold or flap 5a.

Sur la figure 4 on a représenté une autre réalisation recommandée d'une liasse de feuilles selon l'invention. Cette liasse est d'une manière générale semblable à la liasse représentée aux figures 1 à 3 mais comporte en outre un gaufrage réalisé dans la partie supérieure de chacune des feuilles 2 de la liasse parallèlement au premier bord transversal 3 de chacune des feuilles, à proximité de celui-ci, et de préférence légèrement en dessous de la ligne de perforation 6. De préférence, le gaufrage de chaque feuille 2 est tel que l'épaisseur de chaque feuille, au niveau du gaufrage 10, est égale à environ l'épaisseur totale de chaque feuille au niveau du pli 5a c'est-à-dire la somme des épaisseurs du pli 5a et de la surface de la feuille directement en dessous de ce pli.FIG. 4 shows another recommended embodiment of a bundle of sheets according to the invention. This bundle is generally similar to the bundle shown in Figures 1 to 3 but further comprises an embossing produced in the upper part of each of the sheets 2 of the bundle parallel to the first transverse edge 3 of each of the sheets, near the latter, and preferably slightly below the perforation line 6. From preferably, the embossing of each sheet 2 is such that the thickness of each sheet, at the level of the embossing 10, is equal to approximately the total thickness of each sheet at the level of the fold 5a, that is to say the sum of the thicknesses of fold 5a and of the surface of the sheet directly below this fold.

Dans la réalisation représentée comme l'épaisseur du pli 5a est réduite de 30% par rapport à l'épaisseur initiale de la feuille, le gaufrage 10 résultera donc, de préférence, en une épaisseur de la feuille, dans la zone du gaufrage, accrue d'environ 70% par rapport à l'épaisseur initiale de la feuille. Ainsi, on peut considérer que la liasse de feuilles a des épaisseurs pratiquement égales au niveau de ses deux extrémités transversales opposées conduisant à des liasses de feuilles parallélépipédiques plus régulières dont le nombre de feuilles peut être prédéterminé. Généralement, ce gaufrage a une largeur comprise entre 2 et 3 cm.In the embodiment shown as the thickness of the fold 5a is reduced by 30% compared to the initial thickness of the sheet, the embossing 10 will therefore preferably result in an increased thickness of the sheet in the embossing area. about 70% compared to the initial thickness of the sheet. Thus, it can be considered that the bundle of sheets has practically equal thicknesses at its two opposite transverse ends leading to bundles of more regular parallelepipedic sheets, the number of sheets of which can be predetermined. Generally, this embossing has a width of between 2 and 3 cm.

On obtient ainsi une liasse de feuilles qui présente une épaisseur pratiquement régulière et comportant un nombre prédéterminé de feuilles.A bundle of sheets is thus obtained which has a practically regular thickness and comprising a predetermined number of sheets.

Claims (7)

  1. Pack of sheets in which the various sheets previously cut to the desired format are connected to one another along a first transversal edge (3) and each sheet is provided with a gripping means at a second transversal edge (4) positioned opposite the said first transversal edge (3), said gripping means consisting of a fold (5a), characterised in that the thickness of each sheet is reduced in a zone (5) which is adjacent to the said second transversal edge at a width which is at least equal to the width of the said fold, by a value between 20% and 40% of the initial thickness of the sheet.
  2. Pack as claimed in claim 1, characterised in that the thickness of each of the said sheets is reduced in said zone by 30% of the initial thickness of the sheet.
  3. Pack as claimed in claim 1 or 2, characterised in that said zone (5) has a width which is equal to that of the said fold (5a).
  4. Pack as claimed in claim 1 or 2, characterised in that said zone (5) has double the width of that of the said fold (5a).
  5. Pack as claimed in any one of the claims 1 to 4, characterised in that the said gripping means is a fold (5a) which is formed across the total length of the said second transversal edge (4).
  6. Pack as claimed in anyone of the above claims, characterised in that each one of the sheets further is provided in the vicinity of the first transversal edge (3) with an embossment extending parallel with respect to same, so that the thickness of the sheet at the embossment is equal to the overall thickness of the sheet at the level of the fold (5a).
  7. Pack as claimed in claim 6, characterised in that the said embossment has a width of between 2 and 3 cm.
EP19940401193 1993-06-02 1994-05-31 Pack of sheets for packaging foodstuffs and other products Expired - Lifetime EP0627366B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9306555 1993-06-02
FR9306555A FR2705949B1 (en) 1993-06-02 1993-06-02 Bundles of leaves for the packaging of foodstuffs and other products.

Publications (2)

Publication Number Publication Date
EP0627366A1 EP0627366A1 (en) 1994-12-07
EP0627366B1 true EP0627366B1 (en) 1997-08-20

Family

ID=9447645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940401193 Expired - Lifetime EP0627366B1 (en) 1993-06-02 1994-05-31 Pack of sheets for packaging foodstuffs and other products

Country Status (2)

Country Link
EP (1) EP0627366B1 (en)
FR (1) FR2705949B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006006744U1 (en) * 2006-04-24 2006-07-06 Frankfurter Rollenpapier-Industrie Jahn Ohg Decorative temporary cover for flower pot, comprises two circular sheets of different materials to be combined in order to form a decorative wrapper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2247071A5 (en) * 1973-10-05 1975-05-02 Vauzelle Jean Pack of food wrapping sheets - has sheet edges folded for easy separation and cover for cleanliness
FR2269425A2 (en) * 1974-05-03 1975-11-28 Vauzelle Jean Marie Pad of wrapping sheets with suspension tab - has cardboard backing with suspension tabs cut from it

Also Published As

Publication number Publication date
FR2705949A1 (en) 1994-12-09
FR2705949B1 (en) 1995-08-18
EP0627366A1 (en) 1994-12-07

Similar Documents

Publication Publication Date Title
EP0564540B1 (en) Flexible bag for packaging compressible products, particularly sanitary articles such as nappies, and a packet of compressed sanitary articles thereby packaged
FR2595666A1 (en) PACKAGING FOR CONVEX FORM OBTAINED FROM A FROZEN THIN SHEET
FR2899873A1 (en) FLAN MONO PIECE, CASE DISPLAY, METHOD AND DEVICE FOR MANUFACTURING SUCH BOX FROM THE FLAN
FR2702743A1 (en) Device combining a disposable towel and a packaging for fast food, and continuous manufacturing method.
EP0579714B1 (en) Opening device for flexible bags for packaging compressible products
EP2197752A1 (en) Set of blanks, box and box production method
FR2699892A1 (en) Polygonal section packaging in sheet material, in particular for bottles, blank and machine for such packaging.
CA2370696C (en) Crate, set of blanks, method for opening a crate and method and machine for the production of said crate
EP1832413A1 (en) Method and device for making packages comprising cardboard boxes of variable volume
EP0639504A1 (en) Method of packaging a granular or pulverulent product; container for use in this method and its corresponding blank
WO2000076856A2 (en) Case and cardboard blank with tearaway wall
EP0627366B1 (en) Pack of sheets for packaging foodstuffs and other products
WO2015040332A1 (en) Blank of sheet material having centring tabs, box and method implementing such a blank
CA3024168A1 (en) Industrial bag with closing and opening system comprising a tear-off bottom strip, and method for producing such a bag
WO2008040916A2 (en) Method of producing a packaging pouch, and resulting packaging pouch
EP1120360B1 (en) Dispensing box having two offset openings
EP0020600B1 (en) Process for feeding a shredder with pulp supplied in bales
FR2634456A1 (en) Package with a handle and blank capable of making such a package
FR2802179A1 (en) Cardboard blank with tear-off wall for packaging crate has flaps forming bottom, top and side walls joined by pre-cut junction lines, and tear-off portions join side walls to bottom
FR2778635A1 (en) Cardboard packaging transformable into display shelf
EP0236214A1 (en) Packaging box for rounded articles
FR2754521A1 (en) Carrier for bottles with tear tabs
WO1997047477A1 (en) Insert member for supporting an object releasably attached thereto
EP1228970B1 (en) Open carton box with carton cover
FR2581038A1 (en) Method of manufacturing a cover made of corrugated cardboard intended to cover products during their packaging and device for using it

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE ES LU NL

17P Request for examination filed

Effective date: 19950523

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19960531

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FICOPA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE ES LU NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970820

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970820

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: FICOPA

Effective date: 19980531