EP0658488B1 - Flexible bag with integrated opening line, and method for its manufacturing - Google Patents

Flexible bag with integrated opening line, and method for its manufacturing Download PDF

Info

Publication number
EP0658488B1
EP0658488B1 EP19940402923 EP94402923A EP0658488B1 EP 0658488 B1 EP0658488 B1 EP 0658488B1 EP 19940402923 EP19940402923 EP 19940402923 EP 94402923 A EP94402923 A EP 94402923A EP 0658488 B1 EP0658488 B1 EP 0658488B1
Authority
EP
European Patent Office
Prior art keywords
line
sachet
weakness
margin
peripheral edge
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
EP19940402923
Other languages
German (de)
French (fr)
Other versions
EP0658488A1 (en
Inventor
Thierry Bochet
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.)
Socoplan SAS
Original Assignee
Socoplan SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9454013&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0658488(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Socoplan SAS filed Critical Socoplan SAS
Publication of EP0658488A1 publication Critical patent/EP0658488A1/en
Application granted granted Critical
Publication of EP0658488B1 publication Critical patent/EP0658488B1/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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5816—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion
    • B65D75/5822—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion and defining, after tearing, a small dispensing spout, a small orifice or the like
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding

Definitions

  • the invention relates to a flexible bag with line integrated opening.
  • flexible bag any container comprising at least two walls, leaf-shaped made from one or more materials sufficiently flexible so that they can be deformed without undergoing deterioration, under normal conditions of use.
  • the walls can be made to from a sheet of paper, plastic or metal such as aluminum. Frequently, they are performed at from a complex multilayer film.
  • This central volume is intended to contain a product, for example pasty or powdery liquid. he can in particular a fluid for food use, cosmetic, medical or household.
  • This volume being surrounded, generally so hermetic, by the margin of solidarity, an opening must be formed in the walls of the bag, to allow the product to be discharged.
  • Such an opening can be achieved using a cutting tool such as a pair of scissors.
  • At least one wall includes a layer of material supporting without breaking important elastic deformations, the opening obtained is not always straightforward, and does not allow clean unloading and precise dosage of the product.
  • the tear deviates from the next direction which one wishes it to be carried out. And part of the walls is torn off without the sachet being opened. Or that the tear is diverted towards the interior of the volume, and creates a gap in it that the product tends to leak out of the bag.
  • the invention aims to overcome these drawbacks among others. And to offer an economical flexible bag to realize, which is both mechanically resistant, to itself offer effective protection of its content, while being able to be opened easily.
  • An object of the invention is a bag comprising two flexible but tearable walls arranged opposite; a rigid joining margin of the two walls one against the other, arranged to delimit on the one hand the external periphery of the bag and on the other hand the external contour of a central volume intended to contain a product, for example liquid, pasty or powdery; and a line of weaker resistance which extends over the joining margin and which is intended to allow the opening of the bag as a result of the tearing of the walls; a first end of the line of weakest resistance being situated at a peripheral edge of the joining margin; at its second end the line has a tangent which intercepts the external contour of the volume; the line of weakest resistance has at least one curved part near each of the second end and the volume comprises, near the second end, a part projecting in the margin and towards a peripheral edge along which extends the line of weakest resistance, so that the opening in the volume produced by tearing constitutes a pouring spout .
  • the walls of such a bag can either be separate, for example from two sheets of flexible material. Either these walls come from the same sheet folded so as to obtain two facing walls.
  • the line of weakest resistance can be present in the form of a thinning of the thickness at least one wall, a stamped line, or a removal of material.
  • the line of weakest resistance can be interrupted between its first and second ends, by at least one frangible bridge.
  • the line of weakest resistance can be substantially straight. And be arranged in part parallel to the peripheral edge along which it stretches.
  • the line of weakest resistance can be oriented towards the peripheral edge of the margin and towards the external contour of the volume, so as to define a tongue gripping on the margin.
  • the tangent of the weakest line resistance at its second end can define an angle between 45 ° and 90 °, and preferably of the order of 50 ° to 70 °.
  • the sachet has a gripping tab which is flared at least in part, following the line of weakest resistance and from the first end.
  • the grip tab is flared at least near the second end of the line of lower resistance.
  • the latter may extend along an edge peripheral which is delimited, in the vicinity of the first end by an adjacent peripheral edge, the distance between the first end and this peripheral edge adjacent being greater than the width of the margin of joining, projected onto the peripheral edge where extends the line, in order to provide an area of detention.
  • the part in volume protrusion is located between the second end of the line of weakest resistance and a peripheral edge adjacent to a peripheral edge along which the line of lower resistance extends.
  • peripheral edges of the margins of joining form a polygon, preferably rectangle.
  • the reference 1 designates a flexible bag.
  • Bag 1 includes at least two flexible walls but tearable 2 and 3.
  • the walls 2 and 3 are arranged opposite each other.
  • the two walls 2, 3 are distinct.
  • the walls 2,3 come from the same sheet (59) folded in material flexible but tearable.
  • a margin 4 for rigidly joining the walls of the bag 1 is arranged to delimit on the one hand the outer periphery of the bag 1, and on the other hand the external outline of a central volume 5.
  • the central volume 5 is intended to contain a product, for example liquid, pasty or powdery. This product can be at least partly solid.
  • the bag 1 illustrated comprises two flexible walls 2 and 3 arranged one against the other. But bag 1 can have more than two flexible walls joined by a or more margins 4. The walls can then be united towards each other and, from preferably edge to edge.
  • the sachet 1 is assimilated to the plane defined by the two walls 2 and 3, and by margin 4. It being understood that the envelope of the sachet 1 in reality has a certain thickness.
  • the 1 bags shown are polygonal, and more precisely rectangular, bags 1 can be provided, the external periphery has any shape, for example rounded.
  • the outer periphery of the bag 1 is constituted by peripheral edges 6, 7, 8 and 9. Edges 6 and 8 are parallel to each other, and are delimited between their ends by the adjacent edges 7 and 9. The peripheral edges 7 and 9 are parallel between them, and extend perpendicular to the adjacent edges 6 and 8.
  • the outer contour of the central volume 5 is essentially defined by adjacent sections 10, 11, 12 and 13, which are respectively parallel to the edges peripherals 6, 7, 8 and 9.
  • the fold of the sheet may correspond to one of the peripheral edges of the bag 1, for example edge 8.
  • Margin 4 is substantially divided into 4 parts adjacent 14, 15, 16 and 17. Part 14 of margin 4 is bounded on the one hand by the peripheral edge 6 and on the other starts from section 10 of the external outline of volume 5. It the same goes for part 15 with edge 7 and the section 11; the part 16 with the edge 8 and the section 12; as well as for part 17 with edge 9 and the section 13.
  • the folded edge is joined or is not not.
  • the folded edge 8 is also secured and delimited the margin part 16.
  • bag 1 On margin 4, bag 1 includes a line of lower resistance 18. Line 18 here extends over the part 15 of margin 4. It has a first end 19, located at the peripheral edge 7.
  • This line 18 is intended to allow the opening from bag 1, by removing part of the walls 2 and 3.
  • the line of weakest resistance 18 presents at its second end 20, a tangent 21 which intercepts the section 11 of the external contour of the volume 5.
  • an opening 22 (fig. 5) of substantially predetermined shape is carried out in volume 5.
  • the line of weakest resistance 18 can be obtained in different ways. She can show up in the form of a thinning of the thickness of at least a wall 2 or 3. But also a stamped line or a removal of material.
  • line 18 is interrupted by a bridge frangible 23.
  • Several frangible bridges can be along line 18.
  • the line of weakest resistance 18 is partly substantially straight and extends along the edge 7 which is one of the two longest of the bag 1.
  • the part straight line 18 is arranged parallel to the edge peripheral 7. Measured in orthogonal projection on the edge 7, the distance between the first end 19 and the adjacent peripheral edge 8 opposite the second end 20 along edge 7, is greater than the width of the joining margin 4 measured in the same way, that is to say at the distance on the edge 7, between the edge adjacent 8 and the contour part 16.
  • Zone 24 has sufficient dimensions to allow the bag 1 to be firmly held by its user, between end 19 and edge 8.
  • Line 18 defines on margin 4, a tongue gripping 25.
  • the tongue 25 is flared at least in part, following line 18 and from the first end 19.
  • the second end 20 is further from the peripheral edge 7, in a direction parallel to the adjacent edge 6, than is the part straight 26.
  • the tongue 25 can be flared over its entire length, it is here only near the second end 20.
  • the flared part of the tongue 25 is defined by a curved part 27 (fig. 3) of the line 18, oriented towards the external contour of volume 5, and here towards its section 11. And near the first end 19, the line of lower resistance 18 has another part curved 28 oriented towards the peripheral edge 7. In projection on this edge, the curved part 28 is located between the frangible bridge 23 and the first end 19. The curved portion 28 defines one end 29 of the tongue 25 which is integrated in margin 4.
  • the curved portion 28 is here arranged so that the tangent 21 on the one hand, and on the other hand a tangent 30 of section 11 of the external contour of volume 5, at a point intercept 31 of this contour and the tangent 21, define an angle ⁇ between 45 ° and 90 °.
  • the angle ⁇ is of the order of 50 ° to 70 °.
  • part 33 of the volume 5 provided near the second end 20 made projection in part 15 of margin 4, towards the edge peripheral 7.
  • the protruding part 33 is here delimited by the intersection of the adjacent sections 10 and 11 of the external contour of volume 5. It is located between the second end 20 and the peripheral edge 6, to which is adjacent the peripheral edge 7.
  • the bag 1 Before opening, the bag 1 is as shown in Figures 1 and 3. A person or user wishing to unload at least part of the product contained in volume 5, can take between the fingers of one hand the retention zone 24.
  • the user can grab the tab 25.
  • the dimensions of the retainer 24, and the length of the tongue 25 allow a good catch.
  • the tear point leaves the line of weakest resistance 18 and forms a rim torn 37.
  • the orientation given to the curved part 27 in particular allows the tearing to be carried out so clean and frank.
  • the tab 25 can be completely detached from the rest of the bag 1.
  • the tongue 25 carries with it a part 36 delimited by what previously formed a corner of bag 1 between edges 6 and 7, as well as ripped edge 37.
  • the opening 22 obtained by this tearing, which cuts the protruding part 33 of volume 5 has the shape of a spout.
  • This spout discharges the product from volume 5 in a dosed manner, and at a chosen location. For example, if the product is fluid, it is possible to dose a drop 35 of product, and affix it precisely on any support.
  • the angle ⁇ is preferably determined so that the torn rim 37 is oriented in one direction in which the material of walls 2 and 3 has most tear resistance characteristics possible.
  • the bag 1, and for example part 15 of margin 4 bearing the weakest resistance line 18 can be coated a print 34 or the like.
  • printing 34 can also have a function informative. Here it represents an arrow which indicates the direction in which the line 18 tear should be performed.
  • FIGS 2 and 7 illustrate examples of processes for making sachets 1.
  • a person skilled in the art will know how to implement this process.
  • the references 38 and 39 designate two sheets of flexible but tearable material, for example unwound from rolls and moved simultaneously facing each other, according to the direction an arrow B.
  • the arrow B is preferably oriented at the vertical.
  • the two sheets 38 and 39 have the same dimensions, and are arranged side by side. This dimension corresponds substantially twice the width of an edge 6 or 8 of sachet 1.
  • the example illustrated allows that two sachets 1 are performed substantially simultaneously. The sachets 1 are produced so that their edges most long 7 and 9, are parallel to arrow B.
  • Sheets 38 and 39 are brought in by means 60, in contact with each other during their movement following arrow B.
  • sheets 38 and 39 are rigidly joined together to form part of the margin 4 and volume 5. More precisely, at this stage only parts 15, 16 and 17 of margin 4 are carried out.
  • Two filling members 40, 41 such as nozzles are fixed relative to the sheets 38 and 39 which scroll in the direction of arrow B. And these nozzles 40 and 41 are arranged to extend inside the volume 5 partially defined by the margin parts 15, 16 and 17 which have just been rigidly joined.
  • Each nozzle 40 and 41 has the function of filling at at least partially the already completed part of volume 5 with a product. It can be different for each nozzle 40 and 41.
  • the rigid joining of the two sheets 38 and 39, and therefore the realization of the peripheral margin 4 are then completed. This step closes the volume 5.
  • line of weakest resistance 18 is formed.
  • line 18 for example she can take the form of a stamped line.
  • An optional marking 42 can then be carried out on margins 4 provided with line 18.
  • a transverse cutting operation 44 that is to say substantially perpendicular to the direction B, is carried out to separate the sachets 1 from each strip obtained by the longitudinal cut 43.
  • Figure 2 is only an example and it is also possible to make more than two sachets 1 simultaneously. Or only one sachet at a time. Also, the invention allows the production of platelets of several sachets in one piece, where sachets 1 do not are not separated in the longitudinal direction of scrolling B and / or in a transverse direction.
  • the walls 2, 3 come from the same sheet of material flexible but tearable 59, which is rolled up in the form of coil 61. And the direction B of scrolling and setting form of sheet 59 in sachets 1 is effected substantially horizontal.
  • the sheet 59 passes through means 60 able to perform longitudinal folding, substantially parallel to the direction B.
  • the sheet 59 is thus folded in the direction of its length, to form two sections 62, 63.
  • the walls 2, 3 undergo stages similar to those that have been described above (fig. 2), to obtain sachets 1.
  • Three filling means 40 in the form of a mobile nozzle able to penetrate and extract itself from volume 5 defined by the margin portions 15, 16 and 17 are provided here.
  • line low resistance 18 is formed on the formed parts by the walls 2, 3 secured, by means 56 appropriate.
  • Line 18 is made on margin 4, and by example on part 15.
  • This cutout 44 is here vertical, and produced according to the plan to which the sachets are assimilated 1.
  • the machine 45 comprises a frame 46 with a base 47.
  • Various means are provided for transforming into sachets flexible 1 sheets of flexible material 38, 39 which scroll inside the machine in one direction B.
  • the sheets 33, 34 scroll for this purpose opposite or at through the means of the machine 45.
  • This machine 45 is shown with its tools in a position extracted from the frame 46. Some of its parties are not represented.
  • the machine 45 includes in particular a drawer 48, of which a part of the machine tools and means 45.
  • the drawer 48 extracts from the frame 46, in a direction transverse to arrow B for example, the organs which are united.
  • the drawer can for example be mounted at sliding on the frame 46.
  • the means 49 include a plate 50, integral with the drawer 48.
  • Skids 51, 52 and 53 are arranged in a direction substantially parallel to arrow B. They allow the formation of the parts of margin 15 and 17 of the bags 1, for example by heat sealing.
  • joining pads 51-54 generally define the shape of two contiguous U's. Each U corresponds to one of bags 1 to make.
  • the shoe 54 is arranged transversely to the direction B, and allows to join the margin parts 14 and 16.
  • the skate firstly secures the margin portions 16 of a location of the sheets 38, 39 which has just been brought opposite the plate 50.
  • the margin parts 15 and 17 are produced simultaneously.
  • this location is moved until the part of volume 5 opposite the part 16, come opposite skate 54. And while parts margin 15, 16 and 17 of a location of sheets 38, 39 following are carried out, the margin part 14 of the space with volumes 5 just filled is produced by the pad 54. This pad therefore constitutes means of sealing volume 5, by completing the margin 4.
  • Tension roller means 55 act on the sheets 38, 39 to move them in direction B, in machine 45.
  • the means referenced in 56 have the function of make the lines of lower resistance 18.
  • the means 56 are mounted on the drawer 50 via of a base 57. They form a passage that the leaves 38, 39 pass through, and where appropriate tools, such as cutting tool, achieves the weakest lines resistance.
  • the means 58 are arranged to perform the longitudinal cut 43 for separating the sheets secured 38, 39 in two strips of sachets 1 of a single holding.
  • the means 49 performing the first securing of the walls 2, 3 are arranged at distance in direction B, means (54) capable of make the margin part 14 which closes the volume 5.
  • FIG. 8 partially represents a machine 45. This machine can also work vertically than horizontal.
  • This machine 45 has two supports 64 and 65, which are arranged opposite, on either side of a track scrolling - in direction B - of at least one sheet of flexible material.
  • Plates 50 forming part of means 56 are mounted on supports 64 and 65. They can be positioned relative to each other, as well as by compared to the walls 2, 3 which scroll in the direction B, by respective adjustment means 66 and 67. These means 66 and 67 such as slides or the like allow in particular an adjustment in direction B.
  • the mounting of the plate 50 can be carried out using rails 68.
  • One plates 50 is provided to receive tools comparable to skates 51-54.

Landscapes

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

Description

L'invention concerne un sachet souple à ligne d'ouverture intégrée.The invention relates to a flexible bag with line integrated opening.

Par "sachet souple", on désigne tout conteneur comprenant au moins deux parois, en forme de feuilles réalisées à partir d'un ou plusieurs matériaux suffisamment souples pour pouvoir être déformées sans subir de détérioration, dans des conditions normales d'utilisation.By "flexible bag" is meant any container comprising at least two walls, leaf-shaped made from one or more materials sufficiently flexible so that they can be deformed without undergoing deterioration, under normal conditions of use.

Mais bien qu'étant souples, les parois doivent pouvoir être découpées ou déchirées facilement par l'utilisateur pour accéder au produit contenu, sans diminuer la résistance du sachet.But although flexible, the walls must can be easily cut or torn by the user to access the content product, without decrease the resistance of the sachet.

Par exemple, les parois peuvent être réalisées à partir d'une feuille de papier, de matière plastique ou de métal tel qu'aluminium. Fréquemment, elles sont réalisées à partir d'un film complexe à couches multiples.For example, the walls can be made to from a sheet of paper, plastic or metal such as aluminum. Frequently, they are performed at from a complex multilayer film.

On connaít des sachets souples dont les parois sont disposées en regard. Ils comprennent une marge de solidarisation rigide des deux parois l'une contre l'autre. La marge est agencée pour délimiter d'une part la périphérie extérieure du sachet, et d'autre part le contour externe d'un volume central.We know flexible bags whose walls are arranged opposite. They include a margin of rigid joining of the two walls against each other. The margin is arranged to delimit on the one hand the outer periphery of the bag, and on the other hand the outline external of a central volume.

Ce volume central est destiné à contenir un produit, par exemple liquide pâteux ou pulvérulent. Il peut s'agir notamment d'un fluide à usage alimentaire, cosmétique, médical ou ménager.This central volume is intended to contain a product, for example pasty or powdery liquid. he can in particular a fluid for food use, cosmetic, medical or household.

Ce volume étant entouré, généralement de façon hermétique, par la marge de solidarisation, une ouverture doit être formée dans les parois du sachet, pour permettre au produit d'en être déchargé.This volume being surrounded, generally so hermetic, by the margin of solidarity, an opening must be formed in the walls of the bag, to allow the product to be discharged.

Une telle ouverture peut être réalisée à l'aide d'un outil coupant tel qu'une paire de ciseaux.Such an opening can be achieved using a cutting tool such as a pair of scissors.

Il est aussi connu de prévoir sur la marge de solidarisation une ligne de plus faible résistance destinée à permettre l'ouverture du sachet, sans outils coupants, par suite de l'arrachement ou du déchirement des parois. Généralement, une première extrémité de la ligne de plus faible résistance est située à la périphérie extérieure du sachet.It is also known to provide on the margin of joining a line of lower resistance intended to allow the opening of the bag, without cutting tools, due to tearing or tearing of the walls. Usually a first end of the line over low resistance is located on the outer periphery of the bag.

Mais ces sachets présentent des inconvénients.However, these sachets have drawbacks.

Avec certains matériaux à partir desquels sont réalisées les parois, il n'est pas toujours possible d'obtenir une ouverture correcte du sachet par arrachement suivant la ligne de plus faible résistance. Tel est par exemple, le cas des parois qui comprennent une couche de matériau à haute résistance au déchirement, par exemple en PET ou fortement élastique par exemple le PE ou PP.With certain materials from which are the walls, it is not always possible to obtain a correct opening of the sachet by tearing off along the line of weakest resistance. Such is by example, the case of walls that include a layer of material with high tear resistance, for example PET or highly elastic, for example PE or PP.

A l'inverse, si au moins une paroi comprend une couche d'un matériau supportant sans rupture d'importantes déformations élastiques, l'ouverture obtenue n'est pas toujours franche, et ne permet pas un déchargement propre et un dosage précis du produit. Conversely, if at least one wall includes a layer of material supporting without breaking important elastic deformations, the opening obtained is not always straightforward, and does not allow clean unloading and precise dosage of the product.

Souvent, la déchirure dévie de la direction suivant laquelle on désire qu'elle soit effectuée. Et une partie des parois est arrachée sans que le sachet ne soit ouvert. Ou que la déchirure soit déviée vers l'intérieur du volume, et y crée une brèche telle que le produit a tendance à fuir hors du sachet.Often the tear deviates from the next direction which one wishes it to be carried out. And part of the walls is torn off without the sachet being opened. Or that the tear is diverted towards the interior of the volume, and creates a gap in it that the product tends to leak out of the bag.

L'agencement et les dimensions limitées des lignes de plus faible résistance connues font qu'elles sont difficiles à localiser. Et qu'elles offrent une prise insuffisante pour permettre un arrachement facile.The layout and limited dimensions of the lines of lower known resistance make them difficult to locate. And that they offer a hold insufficient to allow easy removal.

L'invention a pour but de pallier ces inconvénients entre autres. Et de proposer un sachet souple économique à réaliser, qui soit à la fois mécaniquement résistant, à-même d'offrir une protection efficace de son contenu, tout en pouvant être ouvert de manière aisée.The invention aims to overcome these drawbacks among others. And to offer an economical flexible bag to realize, which is both mechanically resistant, to itself offer effective protection of its content, while being able to be opened easily.

Un objet de l'invention est un sachet comprenant deux parois souples mais déchirables disposées en regard ; une marge de solidarisation rigides des deux parois l'une contre l'autre, agencées pour délimiter d'une part la périphérie extérieure du sachet et d'autre part le contour externe d'un volume central destiné à contenir un produit par exemple liquide, pâteux ou pulvérulent ; et une ligne de plus faible résistance qui s'étend sur la marge de solidarisation et qui est destinée à permettre l'ouverture du sachet par suite de l'arrachement des parois ; une première extrémité de la ligne de plus faible résistance étant située à un bord périphérique de la marge de solidarisation ; à sa seconde extrémité la ligne présente une tangente qui intercepte le contour externe du volume;
   la ligne de plus faible résistance présente au moins une partie incurvée à proximité de chacune de la seconde extrémité et
   le volume comporte à proximité de la seconde extrémité, une partie en saillie dans la marge et vers un bord périphérique le long duquel s'étend la ligne de plus faible résistance, afin que l'ouverture dans le volume réalisée par déchirement constitue un bec verseur. An object of the invention is a bag comprising two flexible but tearable walls arranged opposite; a rigid joining margin of the two walls one against the other, arranged to delimit on the one hand the external periphery of the bag and on the other hand the external contour of a central volume intended to contain a product, for example liquid, pasty or powdery; and a line of weaker resistance which extends over the joining margin and which is intended to allow the opening of the bag as a result of the tearing of the walls; a first end of the line of weakest resistance being situated at a peripheral edge of the joining margin; at its second end the line has a tangent which intercepts the external contour of the volume;
the line of weakest resistance has at least one curved part near each of the second end and
the volume comprises, near the second end, a part projecting in the margin and towards a peripheral edge along which extends the line of weakest resistance, so that the opening in the volume produced by tearing constitutes a pouring spout .

Les parois d'un tel sachet peuvent soit être distinctes, et par exemple issues de deux feuilles de matériau souple. Soit ces parois sont issues d'une même feuille pliée de façon à obtenir deux parois en regard.The walls of such a bag can either be separate, for example from two sheets of flexible material. Either these walls come from the same sheet folded so as to obtain two facing walls.

La ligne de plus faible résistance peut se présenter sous la forme d'un amincissement de l'épaisseur d'au moins une paroi, d'une ligne estampée, ou d'un enlèvement de matière.The line of weakest resistance can be present in the form of a thinning of the thickness at least one wall, a stamped line, or a removal of material.

La ligne de plus faible résistance peut être interrompue entre ses première et seconde extrémités, par au moins un pont frangible.The line of weakest resistance can be interrupted between its first and second ends, by at least one frangible bridge.

Elle peut également s'étendre le long d'un bord périphérique de la marge de solidarisation, qui présente la plus grande longueur.It can also extend along an edge peripheral of the joining margin, which presents the longer length.

La ligne de plus faible résistance peut être substantiellement rectiligne. Et être agencée en partie parallèlement au bord périphérique le long duquel elle s'étend.The line of weakest resistance can be substantially straight. And be arranged in part parallel to the peripheral edge along which it stretches.

Respectivement à sa première et à sa seconde extrémités, la ligne de plus faible résistance peut être orientée vers le bord périphérique de la marge et vers le contour externe du volume, de façon à définir une languette de préhension sur la marge. Respectively at his first and second ends, the line of weakest resistance can be oriented towards the peripheral edge of the margin and towards the external contour of the volume, so as to define a tongue gripping on the margin.

Et la tangente de la ligne de plus faible résistance à sa seconde extrémité, ainsi qu'une tangente du contour externe du volume au point d'interception de ce contour et de la tangente de la ligne de plus faible résistance, peuvent définir un angle compris entre 45° et 90°, et de préférence de l'ordre de 50° à 70°.And the tangent of the weakest line resistance at its second end, as well as a tangent of the external contour of the volume at the point of interception of this contour and tangent of the lower line resistance, can define an angle between 45 ° and 90 °, and preferably of the order of 50 ° to 70 °.

Suivant un mode de réalisation, le sachet présente une languette de préhension qui est évasée au moins en partie, suivant la ligne de plus faible résistance et à partir de la première extrémité.According to one embodiment, the sachet has a gripping tab which is flared at least in part, following the line of weakest resistance and from the first end.

Par exemple, la languette de préhension est évasée au moins à proximité de la seconde extrémité de la ligne de plus faible résistance.For example, the grip tab is flared at least near the second end of the line of lower resistance.

Cette dernière peut s'étendre le long d'un bord périphérique qui est délimité, au voisinage de la première extrémité par un bord périphérique adjacent, la distance entre la première extrémité et ce bord périphérique adjacent étant supérieure à la largeur de la marge de solidarisation, en projection sur le bord périphérique où s'étend la ligne, afin de ménager sur la marge une zone de retenue. The latter may extend along an edge peripheral which is delimited, in the vicinity of the first end by an adjacent peripheral edge, the distance between the first end and this peripheral edge adjacent being greater than the width of the margin of joining, projected onto the peripheral edge where extends the line, in order to provide an area of detention.

Suivant un mode de réalisation, la partie en saillie du volume est située entre la seconde extrémité de la ligne de plus faible résistance et un bord périphérique adjacent à un bord périphérique le long duquel la ligne de plus faible résistance s'étend.According to one embodiment, the part in volume protrusion is located between the second end of the line of weakest resistance and a peripheral edge adjacent to a peripheral edge along which the line of lower resistance extends.

Les bords périphériques des marges de solidarisation forment un polygone, de préférence rectangle. The peripheral edges of the margins of joining form a polygon, preferably rectangle.

L'invention est décrite en détail, en se reportant aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective d'un sachet conforme à l'invention ;
  • la figure 2 est une vue partielle schématique, qui illustre un procédé de réalisation des sachets selon l'invention ;
  • les figures 3, 4 et 5 sont des vues en perspective du sachet de la figure 1, à trois phases successives de son ouverture ;
  • la figure 6 est une vue partielle schématique et en perspective d'une machine permettant la mise en oeuvre du procédé, de la réalisation avec défilement vertical de sachets conformes à l'invention.
  • la figure 7 est une vue schématique partielle similaire à la figure 2, mais dans le cas d'une machine permettant la mise en oeuvre d'un procédé de réalisation des sachets selon l'invention, par pliage et défilement horizontaux d'une feuille unique ; et
  • la figure 8 est une vue partielle en perspective, d'un outillage et d'une machine de réalisation de sachets.
The invention is described in detail, with reference to the accompanying drawings in which:
  • Figure 1 is a perspective view of a bag according to the invention;
  • Figure 2 is a partial schematic view, which illustrates a method of producing the bags according to the invention;
  • Figures 3, 4 and 5 are perspective views of the bag of Figure 1, in three successive phases of its opening;
  • Figure 6 is a partial schematic perspective view of a machine allowing the implementation of the method, the realization with vertical scrolling of bags according to the invention.
  • Figure 7 is a partial schematic view similar to Figure 2, but in the case of a machine allowing the implementation of a method of producing bags according to the invention, by folding and horizontal scrolling of a single sheet ; and
  • Figure 8 is a partial perspective view of a tool and a bag making machine.

Sur les figures 1 à 5 et 7, la référence 1 désigne un sachet souple.In Figures 1 to 5 and 7, the reference 1 designates a flexible bag.

Le sachet 1 comprend au moins deux parois souples mais déchirables 2 et 3. Les parois 2 et 3 sont disposées en regard l'une de l'autre.Bag 1 includes at least two flexible walls but tearable 2 and 3. The walls 2 and 3 are arranged opposite each other.

Dans une première réalisation, les deux parois 2, 3 sont distinctes. Dans une autre réalisation, les parois 2,3 sont issues d'une même feuille (59) pliée en matériau souple mais déchirable.In a first embodiment, the two walls 2, 3 are distinct. In another embodiment, the walls 2,3 come from the same sheet (59) folded in material flexible but tearable.

Une marge 4 de solidarisation rigide des parois du sachet 1, est agencée pour délimiter d'une part la périphérie extérieure du sachet 1, et d'autre part le contour externe d'un volume central 5.A margin 4 for rigidly joining the walls of the bag 1, is arranged to delimit on the one hand the outer periphery of the bag 1, and on the other hand the external outline of a central volume 5.

Le volume central 5 est destiné à contenir un produit par exemple liquide, pâteux ou pulvérulent. Ce produit peut être au moins en partie solide.The central volume 5 is intended to contain a product, for example liquid, pasty or powdery. This product can be at least partly solid.

Le sachet 1 illustré comprend deux parois souples 2 et 3 disposées l'une contre l'autre. Mais le sachet 1 peut comporter plus de deux parois souples solidarisées par une ou plusieurs marges 4. Les parois peuvent alors être solidarisées en regard les unes des autres et, de préférence bord à bord.The bag 1 illustrated comprises two flexible walls 2 and 3 arranged one against the other. But bag 1 can have more than two flexible walls joined by a or more margins 4. The walls can then be united towards each other and, from preferably edge to edge.

Afin de simplifier la description, le sachet 1 est assimilé au plan défini par les deux parois 2 et 3, et par la marge 4. Etant entendu que l'enveloppe du sachet 1 présente dans la réalité une certaine épaisseur.In order to simplify the description, the sachet 1 is assimilated to the plane defined by the two walls 2 and 3, and by margin 4. It being understood that the envelope of the sachet 1 in reality has a certain thickness.

Similairement, bien que les sachets 1 illustrés soient de forme polygonale, et plus précisément rectangulaire, on peut prévoir des sachets 1 dont la périphérie externe a une forme quelconque, par exemple arrondie.Similarly, although the 1 bags shown are polygonal, and more precisely rectangular, bags 1 can be provided, the external periphery has any shape, for example rounded.

Sur la figure 1, la périphérie extérieure du sachet 1 est constituée par des bords périphériques 6, 7, 8 et 9. Les bords 6 et 8 sont parallèles entre eux, et sont délimités entre leurs extrémités par les bords adjacents 7 et 9. Les bords périphériques 7 et 9 sont parallèles entre eux, et s'étendent perpendiculairement aux bords adjacents 6 et 8. Le contour externe du volume central 5 est essentiellement défini par des tronçons adjacents 10, 11, 12 et 13, qui sont respectivement parallèles aux bords périphériques 6, 7, 8 et 9.In Figure 1, the outer periphery of the bag 1 is constituted by peripheral edges 6, 7, 8 and 9. Edges 6 and 8 are parallel to each other, and are delimited between their ends by the adjacent edges 7 and 9. The peripheral edges 7 and 9 are parallel between them, and extend perpendicular to the adjacent edges 6 and 8. The outer contour of the central volume 5 is essentially defined by adjacent sections 10, 11, 12 and 13, which are respectively parallel to the edges peripherals 6, 7, 8 and 9.

Dans le cas où les parois 2, 3 sont issues d'une feuille unique (59) pliée, la pliure de la feuille peut correspondre à l'un des bords périphériques du sachet 1, par exemple le bord 8.In the case where the walls 2, 3 come from a single sheet (59) folded, the fold of the sheet may correspond to one of the peripheral edges of the bag 1, for example edge 8.

La marge 4 se divise substantiellement en 4 parties adjacentes 14, 15, 16 et 17. La partie 14 de la marge 4 est délimitée par d'une part le bord périphérique 6 et d'autre part par le tronçon 10 du contour externe du volume 5. Il en va de même pour la partie 15 avec le bord 7 et le tronçon 11 ; la partie 16 avec le bord 8 et le tronçon 12 ; ainsi que pour la partie 17 avec le bord 9 et le tronçon 13.Margin 4 is substantially divided into 4 parts adjacent 14, 15, 16 and 17. Part 14 of margin 4 is bounded on the one hand by the peripheral edge 6 and on the other starts from section 10 of the external outline of volume 5. It the same goes for part 15 with edge 7 and the section 11; the part 16 with the edge 8 and the section 12; as well as for part 17 with edge 9 and the section 13.

Dans le cas où les parois 2, 3 sont issues d'une même feuille pliée, le bord plié est solidarisé ou ne l'est pas. Ici, on voit que le bord plié 8 est également solidarisé et délimité la partie de marge 16.In the case where the walls 2, 3 come from a same folded sheet, the folded edge is joined or is not not. Here we see that the folded edge 8 is also secured and delimited the margin part 16.

La dimension la plus petite du sachet 1 illustré est parallèle aux bords 6 et 8. Les bords 7 et 9, les tronçons de contour du volume 11 et 13, ainsi que les parties de marges 15 et 17 présentent donc la plus grande dimension ou longueur du sachet 1.The smallest dimension of bag 1 illustrated is parallel to edges 6 and 8. Edges 7 and 9, the contour sections of volume 11 and 13, as well as the parts of margins 15 and 17 therefore have the largest size or length of bag 1.

Sur la marge 4, le sachet 1 comprend une ligne de plus faible résistance 18. La ligne 18 s'étend ici sur la partie 15 de la marge 4. Elle possède une première extrémité 19, située au bord périphérique 7.On margin 4, bag 1 includes a line of lower resistance 18. Line 18 here extends over the part 15 of margin 4. It has a first end 19, located at the peripheral edge 7.

Cette ligne 18 est destinée à permettre l'ouverture du sachet 1, en effectuant un arrachement d'une partie des parois 2 et 3.This line 18 is intended to allow the opening from bag 1, by removing part of the walls 2 and 3.

La ligne de plus faible résistance 18 présente à sa seconde extrémité 20, une tangente 21 qui intercepte le tronçon 11 du contour externe du volume 5.The line of weakest resistance 18 presents at its second end 20, a tangent 21 which intercepts the section 11 of the external contour of the volume 5.

Ainsi, en déchirant les parois 2 et 3 suivant la ligne de plus faible résistance 18, à partir de la première extrémité 19 et via la seconde extrémité 20, une ouverture 22 (fig. 5) de forme substantiellement prédéterminée est réalisée dans le volume 5. Thus, by tearing the walls 2 and 3 according to the line of weakest resistance 18, from the first end 19 and via the second end 20, an opening 22 (fig. 5) of substantially predetermined shape is carried out in volume 5.

La ligne de plus faible résistance 18 peut être obtenue de différentes manières. Elle peut se présenter sous la forme d'un amincissement de l'épaisseur d'au moins une paroi 2 ou 3. Mais aussi d'une ligne estampée ou d'un enlèvement de matière.The line of weakest resistance 18 can be obtained in different ways. She can show up in the form of a thinning of the thickness of at least a wall 2 or 3. But also a stamped line or a removal of material.

Ici, entre la première extrémité 19 et la seconde extrémité 20, la ligne 18 est interrompue par un pont frangible 23. Plusieurs ponts frangibles peuvent être ménagés le long de la ligne 18.Here, between the first end 19 and the second end 20, line 18 is interrupted by a bridge frangible 23. Several frangible bridges can be along line 18.

La ligne de plus faible résistance 18 est en partie substantiellement rectiligne et s'étend le long du bord 7 qui est l'un des deux plus longs du sachet 1. La partie rectiligne de la ligne 18 est agencée parallèlement au bord périphérique 7. Mesurée en projection orthogonale sur le bord 7, la distance entre la première extrémité 19 et le bord périphérique adjacent 8 opposé à la seconde extrémité 20 suivant le bord 7, est supérieure à la largeur de la marge de solidarisation 4 mesurée de la même manière, c'est-à-dire à la distance sur le bord 7, entre le bord adjacent 8 et la partie de contour 16.The line of weakest resistance 18 is partly substantially straight and extends along the edge 7 which is one of the two longest of the bag 1. The part straight line 18 is arranged parallel to the edge peripheral 7. Measured in orthogonal projection on the edge 7, the distance between the first end 19 and the adjacent peripheral edge 8 opposite the second end 20 along edge 7, is greater than the width of the joining margin 4 measured in the same way, that is to say at the distance on the edge 7, between the edge adjacent 8 and the contour part 16.

On peut ainsi donner à la ligne de plus faible résistance 18 une longueur importante, tout en ménageant entre la première extrémité 19 et le bord adjacent 8, une zone de retenue 24. La zone 24 a des dimensions suffisantes pour permettre au sachet 1 d'être fermement tenu par son utilisateur, entre l'extrémité 19 et le bord 8.We can thus give the line of weakest resistance 18 a significant length, while sparing between the first end 19 and the adjacent edge 8, a retention zone 24. Zone 24 has sufficient dimensions to allow the bag 1 to be firmly held by its user, between end 19 and edge 8.

La ligne 18 définit sur la marge 4, une languette de préhension 25. La languette 25 est évasée au moins en partie, suivant la ligne 18 et à partir de la première extrémité 19. Autrement dit, la seconde extrémité 20 est plus éloignée du bord périphérique 7, suivant une direction parallèle au bord adjacent 6, que ne l'est la partie rectiligne 26. Bien que la languette 25 puisse être évasée sur toute sa longueur, elle ne l'est ici qu'à proximité de la seconde extrémité 20.Line 18 defines on margin 4, a tongue gripping 25. The tongue 25 is flared at least in part, following line 18 and from the first end 19. In other words, the second end 20 is further from the peripheral edge 7, in a direction parallel to the adjacent edge 6, than is the part straight 26. Although the tongue 25 can be flared over its entire length, it is here only near the second end 20.

La partie évasée de la languette 25 est définie par une partie incurvée 27 (fig. 3) de la ligne 18, orientée vers le contour externe du volume 5, et ici vers son tronçon 11. Et à proximité de la première extrémité 19, la ligne de plus faible résistance 18 possède une autre partie incurvée 28 orientée vers le bord périphérique 7. En projection sur ce bord, la partie incurvée 28 est située entre le pont frangible 23 et la première extrémité 19. La partie incurvée 28 définit une extrémité 29 de la languette 25 qui est intégrée à la marge 4.The flared part of the tongue 25 is defined by a curved part 27 (fig. 3) of the line 18, oriented towards the external contour of volume 5, and here towards its section 11. And near the first end 19, the line of lower resistance 18 has another part curved 28 oriented towards the peripheral edge 7. In projection on this edge, the curved part 28 is located between the frangible bridge 23 and the first end 19. The curved portion 28 defines one end 29 of the tongue 25 which is integrated in margin 4.

La partie incurvée 28 est ici agencée pour que la tangente 21 d'une part, et d'autre part une tangente 30 du tronçon 11 du contour externe du volume 5, à un point d'interception 31 de ce contour et de la tangente 21, définissent un angle α compris entre 45° et 90°. De préférence, l'angle α est de l'ordre de 50° à 70°.The curved portion 28 is here arranged so that the tangent 21 on the one hand, and on the other hand a tangent 30 of section 11 of the external contour of volume 5, at a point intercept 31 of this contour and the tangent 21, define an angle α between 45 ° and 90 °. Of preferably, the angle α is of the order of 50 ° to 70 °.

Sur les figures 1, 3 et 4, une partie 33 du volume 5 prévue à proximité de la seconde extrémité 20 fait saillie dans la partie 15 de la marge 4, vers le bord périphérique 7. La partie en saillie 33 est ici délimitée par l'intersection des tronçons adjacents 10 et 11 du contour externe du volume 5. Elle est située entre la seconde extrémité 20 et le bord périphérique 6, auquel est adjacent le bord périphérique 7. In Figures 1, 3 and 4, part 33 of the volume 5 provided near the second end 20 made projection in part 15 of margin 4, towards the edge peripheral 7. The protruding part 33 is here delimited by the intersection of the adjacent sections 10 and 11 of the external contour of volume 5. It is located between the second end 20 and the peripheral edge 6, to which is adjacent the peripheral edge 7.

En se reportant aux figures 3 à 5, le mode d'ouverture d'un sachet 1, ainsi que les avantages procurés par sa structure, sont décrits.Referring to Figures 3 to 5, the mode opening of a sachet 1, as well as the advantages provided by its structure, are described.

Avant ouverture, le sachet 1 est comme représenté sur les figures 1 et 3. Une personne ou utilisateur désirant décharger une partie au moins du produit contenu dans le volume 5, peut prendre entre les doigts d'une main la zone de retenue 24.Before opening, the bag 1 is as shown in Figures 1 and 3. A person or user wishing to unload at least part of the product contained in volume 5, can take between the fingers of one hand the retention zone 24.

Avec les doigts de l'autre main, l'utilisateur peut saisir la languette 25. Les dimensions de la zone de retenue 24,et la longueur de la languette 25 permettent une bonne prise.With the fingers of the other hand, the user can grab the tab 25. The dimensions of the retainer 24, and the length of the tongue 25 allow a good catch.

Tout en maintenant la zone 24, on exerce sur la languette 25 une traction suivant la ligne 18 telle qu'indiquée par la flèche A (fig. 4). L'extrémité 29 de la languette 25 peut être rendue libre, et le pont frangible 23 rompu.While maintaining zone 24, we exercise on the tongue 25 a pull along line 18 such as indicated by arrow A (fig. 4). The end 29 of the tongue 25 can be made free, and the frangible bridge 23 broken.

En continuant la traction indiquée par la flèche A, le point de déchirement des parois 2 et 3 du sachet 1 est déplacé vers la seconde extrémité 20 de la ligne 18.Continuing the traction indicated by arrow A, the tear point of the walls 2 and 3 of the bag 1 is moved to the second end 20 of line 18.

Lorsque le point de déchirement atteint la partie incurvée 27, l'effort de déchirement suivant la flèche A est transmis aux parois 2 et 3 par une section croissante, mesurée parallèlement au bord 6. Cela permet d'éviter que la languette ne se rompe au fur et à mesure du déchirement des parois au-delà de la seconde extrémité 20 (fig. 5).When the tear point reaches the part curved 27, the tearing force along arrow A is transmitted to walls 2 and 3 by an increasing section, measured parallel to edge 6. This prevents the tongue does not break as it tears walls beyond the second end 20 (fig. 5).

A partir de la phase de la figure 4, en continuant à tirer suivant la flèche A, le point de déchirement quitte la ligne de plus faible résistance 18 et forme un rebord déchiré 37. L'orientation donnée à la partie incurvée 27 permet notamment au déchirement d'être effectué de façon nette et franche.From the phase of figure 4, continuing to be pulled along arrow A, the tear point leaves the line of weakest resistance 18 and forms a rim torn 37. The orientation given to the curved part 27 in particular allows the tearing to be carried out so clean and frank.

Une fois le déchirement achevé (fig. 5), la languette 25 peut être totalement détachée du reste du sachet 1. En déchirant les parois 2 et 3 au-delà de la seconde extrémité 20, la languette 25 entraíne avec elle une partie 36 délimitée par ce qui formait préalablement un coin du sachet 1 entre les bords 6 et 7, ainsi que par le rebord déchiré 37.Once the tear is complete (fig. 5), the tab 25 can be completely detached from the rest of the bag 1. By tearing the walls 2 and 3 beyond the second end 20, the tongue 25 carries with it a part 36 delimited by what previously formed a corner of bag 1 between edges 6 and 7, as well as ripped edge 37.

En outre, l'ouverture 22 obtenue par ce déchirement, qui coupe la partie en saillie 33 du volume 5, a la forme d'un bec verseur. Ce bec permet de décharger le produit provenant du volume 5 de façon dosée, et à un emplacement choisi. Par exemple, si le produit est fluide, il est possible de doser une goutte 35 de produit, et de l'apposer avec précision sur un support quelconque.In addition, the opening 22 obtained by this tearing, which cuts the protruding part 33 of volume 5, has the shape of a spout. This spout discharges the product from volume 5 in a dosed manner, and at a chosen location. For example, if the product is fluid, it is possible to dose a drop 35 of product, and affix it precisely on any support.

L'angle α est de préférence déterminé pour que le rebord déchiré 37 soit orienté suivant une direction dans laquelle le matériau des parois 2 et 3 présente des caractéristiques de résistance au déchirement les plus réduites possible.The angle α is preferably determined so that the torn rim 37 is oriented in one direction in which the material of walls 2 and 3 has most tear resistance characteristics possible.

En se reportant à la figure 1, on voit que le sachet 1, et par exemple la partie 15 de la marge 4 portant la ligne de plus faible résistance 18 peut être revêtue d'une impression 34 ou analogue.Referring to Figure 1, we see that the bag 1, and for example part 15 of margin 4 bearing the weakest resistance line 18 can be coated a print 34 or the like.

Une telle impression peut faire partie d'un motif ornemental s'étendant sur d'autres parties du sachet. Mais l'impression 34 peut également avoir une fonction informative. Ici, elle représente une flèche qui indique le sens suivant lequel le déchirement de la ligne 18 doit être effectué.Such an impression can be part of a pattern ornamental extending over other parts of the sachet. But printing 34 can also have a function informative. Here it represents an arrow which indicates the direction in which the line 18 tear should be performed.

Les figures 2 et 7 illustrent des exemples de procédés de réalisation de sachets 1. Au vu des explications qui suivent et de l'état de la technique, l'homme du métier saura mettre en oeuvre ce procédé.Figures 2 and 7 illustrate examples of processes for making sachets 1. In view of the explanations which follow and the state of the art, a person skilled in the art will know how to implement this process.

Dans le cas (fig. 2) où les deux parois souples 2, 3 sont distinctes, la réalisation est plus spécialement adaptée à la fabrication de sachets à la verticale. Et dans le cas (fig. 7) où les deux parois souples 2, 3 sont issues d'une feuille pliée, la réalisation est plus spécialement adaptée à la fabrication de sachets 1 à l'horizontale.In the case (fig. 2) where the two flexible walls 2, 3 are distinct, the realization is more specially suitable for making bags vertically. And in the case (fig. 7) where the two flexible walls 2, 3 come from of a folded sheet, the realization is more specially suitable for the manufacture of sachets 1 horizontally.

Les références 38 et 39 (fig. 2) désignent deux feuilles de matière souple mais déchirable, par exemple déroulées depuis des rouleaux et qui sont déplacées simultanément l'une en regard de l'autre, suivant le sens d'une flèche B. La flèche B est de préférence orientée à la verticale.The references 38 and 39 (fig. 2) designate two sheets of flexible but tearable material, for example unwound from rolls and moved simultaneously facing each other, according to the direction an arrow B. The arrow B is preferably oriented at the vertical.

Suivant un plan perpendiculaire à cette flèche, les deux feuilles 38 et 39 ont les mêmes dimensions, et sont disposées bord à bord. Cette dimension correspond sensiblement à deux fois la largeur d'un bord 6 ou 8 de sachet 1. L'exemple illustré permet que deux sachets 1 soient réalisés de façon sensiblement simultanée. Les sachets 1 sont produits de sorte que leurs bords les plus longs 7 et 9, soient parallèles à la flèche B. In a plane perpendicular to this arrow, the two sheets 38 and 39 have the same dimensions, and are arranged side by side. This dimension corresponds substantially twice the width of an edge 6 or 8 of sachet 1. The example illustrated allows that two sachets 1 are performed substantially simultaneously. The sachets 1 are produced so that their edges most long 7 and 9, are parallel to arrow B.

Les feuilles 38 et 39 sont amenées par des moyens 60, en contact l'une avec l'autre lors de leur déplacement suivant la flèche B.Sheets 38 and 39 are brought in by means 60, in contact with each other during their movement following arrow B.

Une fois en contact, les feuilles 38 et 39 sont solidarisées rigidement afin de former une partie de la marge 4 et du volume 5. Plus précisément, à cette étape seules les parties 15, 16 et 17 de la marge 4 sont réalisées.Once in contact, sheets 38 and 39 are rigidly joined together to form part of the margin 4 and volume 5. More precisely, at this stage only parts 15, 16 and 17 of margin 4 are carried out.

Deux organes de remplissage 40, 41 tels que buses sont fixes par rapport aux feuilles 38 et 39 qui défilent suivant le sens de la flèche B. Et ces buses 40 et 41 sont agencées pour s'étendre à l'intérieur du volume 5 partiellement défini par les parties de marge 15, 16 et 17 qui viennent d'être rigidement solidarisées.Two filling members 40, 41 such as nozzles are fixed relative to the sheets 38 and 39 which scroll in the direction of arrow B. And these nozzles 40 and 41 are arranged to extend inside the volume 5 partially defined by the margin parts 15, 16 and 17 which have just been rigidly joined.

Chaque buse 40 et 41 a pour fonction de remplir au moins partiellement la partie déjà réalisée du volume 5 avec un produit. Il peut être différent pour chaque buse 40 et 41. La solidarisation rigide des deux feuilles 38 et 39, et par conséquent la réalisation de la marge périphérique 4 sont alors achevées. Cette étape permet d'obturer le volume 5.Each nozzle 40 and 41 has the function of filling at at least partially the already completed part of volume 5 with a product. It can be different for each nozzle 40 and 41. The rigid joining of the two sheets 38 and 39, and therefore the realization of the peripheral margin 4 are then completed. This step closes the volume 5.

Ensuite la ligne de plus faible résistance 18 est formée. Plusieurs procédés et outillages permettent d'obtenir la ligne 18, par exemple, elle peut prendre la forme d'une ligne estampée.Then the line of weakest resistance 18 is formed. Several processes and tools allow get line 18 for example she can take the form of a stamped line.

Un marquage optionnel 42 peut alors être réalisé sur les marges 4 pourvues de la ligne 18. An optional marking 42 can then be carried out on margins 4 provided with line 18.

Dans le cas de la figure 2, où les feuilles 38 et 39 permettent de réaliser simultanément plusieurs sachets 1 agencés transversalement à la direction de défilement B, il convient de procéder à une découpe longitudinale en 43. Cette découpe longitudinale est substantiellement parallèle à la direction de défilement B. La formation de la découpe longitudinale 43 aboutit à la création de deux bandes de sachets 1 d'un seul tenant, suivant la direction B.In the case of FIG. 2, where the sheets 38 and 39 allow several bags 1 to be produced simultaneously arranged transversely to the direction of travel B, it should proceed to a longitudinal cut at 43. This longitudinal cut is substantially parallel to the direction of scrolling B. The formation of the cutout longitudinal 43 results in the creation of two strips of bags 1 in one piece, in direction B.

Ensuite, une opération de découpe 44 transversale, c'est-à-dire substantiellement perpendiculaire à la direction B, est effectuée pour séparer les sachets 1 de chaque bande obtenue par la découpe longitudinale 43.Then, a transverse cutting operation 44, that is to say substantially perpendicular to the direction B, is carried out to separate the sachets 1 from each strip obtained by the longitudinal cut 43.

La figure 2 ne constitue qu'un exemple et il est aussi possible de fabriquer plus de deux sachets 1 simultanément. Ou un seul sachet à la fois. Egalement, l'invention permet la réalisation de plaquettes de plusieurs sachets d'un seul tenant, où les sachets 1 ne sont pas séparés suivant la direction longitudinale de défilement B et/ou suivant une direction transversale.Figure 2 is only an example and it is also possible to make more than two sachets 1 simultaneously. Or only one sachet at a time. Also, the invention allows the production of platelets of several sachets in one piece, where sachets 1 do not are not separated in the longitudinal direction of scrolling B and / or in a transverse direction.

Suivant le procédé illustré sur la figure 7, les parois 2, 3 sont issues d'une même feuille de matériau souple mais déchirable 59, qui est enroulée sous forme de bobine 61. Et la direction B de défilement et de mise en forme de la feuille 59 en sachets 1 s'effectue substantiellement à l'horizontale.According to the process illustrated in FIG. 7, the walls 2, 3 come from the same sheet of material flexible but tearable 59, which is rolled up in the form of coil 61. And the direction B of scrolling and setting form of sheet 59 in sachets 1 is effected substantially horizontal.

Au fur et à mesure de son dévidage depuis la bobine 61, la feuille 59 traverse des moyens 60 aptes à effectuer un pliage longitudinal, sensiblement parallèlement à la direction B. La feuille 59 est ainsi pliée dans le sens de sa longueur, pour former deux pans 62, 63. As it is unwound from the spool 61, the sheet 59 passes through means 60 able to perform longitudinal folding, substantially parallel to the direction B. The sheet 59 is thus folded in the direction of its length, to form two sections 62, 63.

En fin de pliage par les moyens 60, les deux pans 62, 63 qui sont respectivement destinés à former les parois 2 et 3, sont disposées en regard. Ici, le pliage est effectué de façon à être confondu avec le bord 8 des sachets 1At the end of folding by the means 60, the two sides 62, 63 which are respectively intended to form the walls 2 and 3, are arranged opposite. Here, the folding is carried out so as to be confused with edge 8 of bags 1

Suivant le sens de défilement B, les parois 2, 3 subissent des étapes similaires à celles qui ont été décrites plus haut (fig. 2), pour obtenir des sachets 1. Trois moyens de remplissage 40, en forme de buse mobile aptes à pénétrer et s'extraire du volume 5 défini par les parties de marges 15, 16 et 17, sont prévus ici.According to the direction of travel B, the walls 2, 3 undergo stages similar to those that have been described above (fig. 2), to obtain sachets 1. Three filling means 40, in the form of a mobile nozzle able to penetrate and extract itself from volume 5 defined by the margin portions 15, 16 and 17 are provided here.

Suite à l'obturation du volume 5, une ligne de plus faible résistance 18 est formée sur les parties constituées par les parois 2, 3 solidarisées, par des moyens 56 appropriés. La ligne 18 est réalisée sur la marge 4, et par exemple sur la partie 15.Following the shutter in volume 5, one more line low resistance 18 is formed on the formed parts by the walls 2, 3 secured, by means 56 appropriate. Line 18 is made on margin 4, and by example on part 15.

Pour séparer les sachets 1 pourvus de lignes 18, une découpe transversale à la direction B est effectuée. Cette découpe 44 est ici verticale, et réalisée suivant le plan auquel sont assimilés les sachets 1.To separate the bags 1 provided with lines 18, a cut transverse to direction B is carried out. This cutout 44 is here vertical, and produced according to the plan to which the sachets are assimilated 1.

Sur la figure 6, on voit une machine 45 permettant la réalisation de sachets 1. Une telle machine permet la mise en oeuvre par exemple du procédé qui vient d'être décrit en se reportant à la figure 2.In Figure 6, we see a machine 45 for the production of sachets 1. Such a machine allows the implementation for example of the process which has just been described with reference to Figure 2.

La machine 45 comprend un bâti 46 avec un socle 47. Divers moyens sont prévus pour transformer en sachets souples 1 des feuilles de matériau souple 38, 39 qui défilent à l'intérieur de la machine suivant une direction B. Les feuilles 33, 34 défilent dans ce but en regard ou à travers les moyens de la machine 45.The machine 45 comprises a frame 46 with a base 47. Various means are provided for transforming into sachets flexible 1 sheets of flexible material 38, 39 which scroll inside the machine in one direction B. The sheets 33, 34 scroll for this purpose opposite or at through the means of the machine 45.

Cette machine 45 est représentée avec son outillage dans une position extraite du bâti 46. Certaines de ses parties ne sont pas représentées.This machine 45 is shown with its tools in a position extracted from the frame 46. Some of its parties are not represented.

En suivant le sens de défilement B, la machine 45 comprend notamment un tiroir 48, dont sont solidaires une partie des outillages et moyens de la machine 45. Le tiroir 48 permet d'extraire du bâti 46, suivant une direction transversale à la flèche B par exemple, les organes qui en sont solidaires. Le tiroir peut par exemple être monté à coulissement sur le bâti 46.Following the direction of travel B, the machine 45 includes in particular a drawer 48, of which a part of the machine tools and means 45. The drawer 48 extracts from the frame 46, in a direction transverse to arrow B for example, the organs which are united. The drawer can for example be mounted at sliding on the frame 46.

A proximité de l'emplacement auquel les feuilles 38, 39 convergent l'une vers l'autre, sont prévus des moyens 49 apte à les rendre rigidement solidaires. Les moyens 49 comprennent une platine 50, solidaire du tiroir 48.Near the location where the leaves 38, 39 converge towards each other, are provided means 49 able to make them rigidly integral. The means 49 include a plate 50, integral with the drawer 48.

Sur la platine 50, sont montés des patins de solidarisation 51, 52, 53 et 54. Les patins 51, 52 et 53 sont agencés suivant une direction sensiblement parallèle à la flèche B. Ils permettent la formation des parties de marge 15 et 17 des sachets 1, par exemple par thermo-soudage.On the plate 50, are mounted pads joining 51, 52, 53 and 54. Skids 51, 52 and 53 are arranged in a direction substantially parallel to arrow B. They allow the formation of the parts of margin 15 and 17 of the bags 1, for example by heat sealing.

Ici, deux sachets 1 sont réalisés simultanément, et les patins de solidarisation 51-54 définissent généralement la forme de deux U contigus. Chaque U correspond à l'un des sachets 1 à réaliser. Here, two sachets 1 are produced simultaneously, and the joining pads 51-54 generally define the shape of two contiguous U's. Each U corresponds to one of bags 1 to make.

Le patin 54 est agencé transversalement à la direction B, et permet de solidariser les parties de marge 14 et 16. Ici, le patin solidarise dans un premier temps les parties de marge 16 d'un emplacement des feuilles 38, 39 qui vient d'être amené en regard de la platine 50. Les parties de marge 15 et 17 sont réalisées simultanément.The shoe 54 is arranged transversely to the direction B, and allows to join the margin parts 14 and 16. Here, the skate firstly secures the margin portions 16 of a location of the sheets 38, 39 which has just been brought opposite the plate 50. The margin parts 15 and 17 are produced simultaneously.

Après remplissage, cet emplacement est déplacé jusqu'à ce que la partie du volume 5 opposée à la partie 16, vienne en regard du patin 54. Et alors que des parties de marge 15, 16 et 17 d'un emplacement des feuilles 38, 39 suivant sont réalisées, la partie de marge 14 de l'emplacement dont les volumes 5 viennent d'être remplis est réalisée par le patin 54. Ce patin constitue donc des moyens d'obturation du volume 5, par achèvement de la marge 4.After filling, this location is moved until the part of volume 5 opposite the part 16, come opposite skate 54. And while parts margin 15, 16 and 17 of a location of sheets 38, 39 following are carried out, the margin part 14 of the space with volumes 5 just filled is produced by the pad 54. This pad therefore constitutes means of sealing volume 5, by completing the margin 4.

Des moyens à galets de tension 55 agissent sur les feuilles 38, 39 pour les déplacer suivant la direction B, dans la machine 45.Tension roller means 55 act on the sheets 38, 39 to move them in direction B, in machine 45.

Les moyens référencés en 56 ont pour fonction de réaliser les lignes de plus faible résistance 18. Les moyens 56 sont montés sur le tiroir 50 par l'intermédiaire d'un socle 57. Ils forment, un passage que les feuilles 38, 39 traversent, et où un outillage approprié, tel qu'un outil de coupe, réalise les lignes de plus faible résistance.The means referenced in 56 have the function of make the lines of lower resistance 18. The means 56 are mounted on the drawer 50 via of a base 57. They form a passage that the leaves 38, 39 pass through, and where appropriate tools, such as cutting tool, achieves the weakest lines resistance.

Les moyens 58 sont agencés pour effectuer la découpe longitudinale 43 permettant de séparer les feuilles solidarisées 38, 39 en deux bandes de sachets 1 d'un seul tenant. The means 58 are arranged to perform the longitudinal cut 43 for separating the sheets secured 38, 39 in two strips of sachets 1 of a single holding.

Dans le cas de la figure 7, et dans une machine 45 à défilement horizontal, les moyens 49 effectuant la première solidarisation des parois 2, 3 sont agencés à distance suivant la direction B, des moyens (54) aptes à réaliser la partie de marge 14 qui obture le volume 5.In the case of FIG. 7, and in a machine 45 horizontally scrolling, the means 49 performing the first securing of the walls 2, 3 are arranged at distance in direction B, means (54) capable of make the margin part 14 which closes the volume 5.

La figure 8 représente en partie une machine 45. Cette machine peut aussi bien fonctionner à la verticale qu'à l'horizontale.FIG. 8 partially represents a machine 45. This machine can also work vertically than horizontal.

Cette machine 45 comporte deux supports 64 et 65, qui sont agencées en regard, de part et d'autre d'une voie de défilement - suivant la direction B - d'au moins une feuille de matériau souple.This machine 45 has two supports 64 and 65, which are arranged opposite, on either side of a track scrolling - in direction B - of at least one sheet of flexible material.

Des platines 50 faisant partie de moyens 56, sont montées sur les supports 64 et 65. Elles peuvent être positionnées l'une par rapport à l'autre, ainsi que par rapport aux parois 2, 3 qui défilent suivant la direction B, par des moyens respectifs de réglage 66 et 67. Ces moyens 66 et 67 tels que glissières ou analogues permettent notamment un réglage suivant la direction B. Le montage de la platine 50 peut s'effectuer à l'aide de rails 68. L'une des platines 50 est prévue pour recevoir des outillages comparables aux patins 51-54.Plates 50 forming part of means 56 are mounted on supports 64 and 65. They can be positioned relative to each other, as well as by compared to the walls 2, 3 which scroll in the direction B, by respective adjustment means 66 and 67. These means 66 and 67 such as slides or the like allow in particular an adjustment in direction B. The mounting of the plate 50 can be carried out using rails 68. One plates 50 is provided to receive tools comparable to skates 51-54.

L'invention n'est pas limitée aux modes de réalisation illustrés mais comprend toutes les modifications à la portée de l'homme du métier.The invention is not limited to the modes of illustrated realization but includes all modifications within the reach of the skilled person.

Claims (16)

  1. A sachet (1) comprising at least two flexible, but tearable walls (2, 3) disposed facing each other; a rigid fixing margin (4) securing the two walls (2, 3) to each other, and disposed to define both the outer periphery of the sachet (1) and the outline (10-13) of a central volume (5) designed to contain a substance, e.g. a liquid, a paste, or a powder; and a line (18) of weakness which extends along the fixing margin (4) and which is designed to enable the sachet (1) to be opened by tearing the walls (2, 3); a first end (19) of the line of weakness (18) being situated at a peripheral edge (7) of the fixing margin (4); the line of weakness (18) having, at its second end (20), a tangent (21) which intercepts the outline (10, 13) of the volume (5),
       the sachet being characterized in that:
    the line of weakness (18) has a curved portion (27) close to its second end (20); and
    the volume (5) includes, close to the second end (20), a portion (33) projecting into the margin (4) towards one of the peripheral edges (7) along which the line of weakness (18) extends so that the opening (22) formed in the volume (5) by tearing constitutes a spout.
  2. A sachet (1) according to claim 1, characterized in that the line of weakness (18) has a curved portion (28) close to its first end (19).
  3. A sachet according to claim 1, characterized in that the two flexible walls (2, 3) are separate.
  4. A sachet according to claim 1, characterized in that the two flexible walls (2, 3) come from a single sheet (59) of folded flexible material.
  5. A sachet (1) according to any one of claims 1 to 4, characterized in that the line of weakness (18) is in the form of a thinning of the thickness of at least one wall (2, 3), a line of stamping, or a removal of material.
  6. A sachet (1) according to any one of claims 1 to 5, characterized in that the line of weakness (18) is interrupted between its first and second ends (19, 20) by at least one frangible bridge (23).
  7. A sachet (1) according to any one of claims 1 to 6, characterized in that the line of weakness (18) extends along a peripheral edge (7) of the fixing margin (4) having greatest length.
  8. A sachet (1) according to any one of claims 1 to 7, characterized in that the line of weakness (18) is substantially rectilinear (26).
  9. A sachet (1) according to any one of claims 1 to 8, characterized in that the tangent (21) of the line of weakness (18) at its second end (20), and a tangent (30) to the outline (10-13) of the volume (5) at the point where the outline (10-13) intercepts the tangent (21) of the line of weakness together define an angle (α) lying in the range 45° to 90°, and preferably of the order of 50° to 70°.
  10. A sachet (1) according to any one of claims 5 to 9, characterized in that part of the line of weakness (18) is organized to be parallel to the peripheral edge (7) along which it extends.
  11. A sachet (1) according to any one of claims 7 to 10, characterized in that at its first and second ends (19, 20) the line of weakness (18) extends respectively towards the peripheral edge (7) of the margin (4) and towards the outline (10-13) of the volume (5), in such a manner as to define a pull tab (25) on the margin (4).
  12. A sachet (1) according to claim 11, characterized in that the pull tab (25) flares, at least in part, along the line of weakness (18) going away from the first end (19).
  13. A sachet (11) according to claim 12, characterized in that the pull tab (25) is flared, at least in the vicinity of the second end (20) of the line of weakness (18).
  14. A sachet (1) according to any one of claims 1 to 13, characterized in that the line of weakness (18) extends along a peripheral edge (7) which is defined in the vicinity of the first end (19) by an adjacent peripheral edge (8), the distance between the first end (19) and said adjacent peripheral edge (8) being greater than the width of the fixing margin (4) when projected on the peripheral edge (7) along which the line (18) extends, so as to leave a retaining zone (24) on the margin (4).
  15. A sachet (1) according to claim 14, characterized in that the projecting portion (33) of the volume (5) is situated between the second end (20) of the line of weakness (18) and a peripheral edge (6) adjacent to the peripheral edge (7) along which the line of weakness (18) extends.
  16. A sachet (1) according to any one of claims 1 to 15, characterized in that the peripheral edges (6-9) of the fixing margin (4) form a polygon, preferably a rectangle.
EP19940402923 1993-12-16 1994-12-16 Flexible bag with integrated opening line, and method for its manufacturing Expired - Lifetime EP0658488B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9315151A FR2714030B1 (en) 1993-12-16 1993-12-16 Container for liquid or powdery product with integrated opening.
FR9315151 1993-12-16

Publications (2)

Publication Number Publication Date
EP0658488A1 EP0658488A1 (en) 1995-06-21
EP0658488B1 true EP0658488B1 (en) 1998-07-22

Family

ID=9454013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940402923 Expired - Lifetime EP0658488B1 (en) 1993-12-16 1994-12-16 Flexible bag with integrated opening line, and method for its manufacturing

Country Status (4)

Country Link
EP (1) EP0658488B1 (en)
CA (1) CA2138352C (en)
DE (1) DE69411865T2 (en)
FR (1) FR2714030B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936778A1 (en) * 1999-06-02 2000-12-28 Acp Zone Ind De L Europ Montre Flat sealed pouch
US8066693B2 (en) 2001-06-29 2011-11-29 Coloplast A/S Catheter device

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6095689A (en) * 1993-12-16 2000-08-01 Socoplan S.A. Flexible bag with incorporated opening line
US7517343B2 (en) 2001-06-29 2009-04-14 Coloplast A/S Catheter assembly
US7682353B2 (en) 2001-06-29 2010-03-23 Coloplast A/S Catheter device
US7311698B2 (en) 2001-09-24 2007-12-25 Coloplast A/S Urinary catheter assembly allowing for non-contaminated insertion of the catheter into a urinary canal
EP1976770A1 (en) * 2006-01-27 2008-10-08 The Procter and Gamble Company Packaging bag with pour spout
CN103747831B (en) 2011-08-29 2017-02-22 科洛普拉斯特公司 Catheter activation by handle removal
EP3548397B8 (en) 2016-12-05 2024-02-14 Handipak Holdings Ltd Drinks pouch
IL276749B1 (en) * 2018-02-26 2024-04-01 Handipak Holdings Ltd Drinks pouch
CN110040359B (en) * 2019-05-16 2024-02-09 福建工程学院 Anti-false tearing quick-lifting packing paper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956710A (en) * 1956-12-17 1960-10-18 Morton Salt Co Disposable shaker packet
FR1216422A (en) * 1958-11-24 1960-04-25 Vinifruit Plastic envelope with automatic opening intended to contain various products and its production process and tools
FR2126578A5 (en) * 1971-02-11 1972-10-06 Prodef
FR2270158A1 (en) * 1974-05-10 1975-12-05 Wellman Lester Sealed container opening and reclosing system - has locking section joined by fold line to reinforcing anchoring section

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936778A1 (en) * 1999-06-02 2000-12-28 Acp Zone Ind De L Europ Montre Flat sealed pouch
DE19936778C2 (en) * 1999-06-02 2001-06-21 Acp Montreuil Bellay Sa Flat, sealed pouch
US8066693B2 (en) 2001-06-29 2011-11-29 Coloplast A/S Catheter device

Also Published As

Publication number Publication date
DE69411865T2 (en) 1998-12-03
FR2714030A1 (en) 1995-06-23
EP0658488A1 (en) 1995-06-21
CA2138352A1 (en) 1995-06-17
CA2138352C (en) 2008-03-11
FR2714030B1 (en) 1996-02-02
DE69411865D1 (en) 1998-08-27

Similar Documents

Publication Publication Date Title
FR1450445A (en) Pouring spouts for containers and process for their manufacture
EP0658488B1 (en) Flexible bag with integrated opening line, and method for its manufacturing
FR2772011A1 (en) CASE FOR PRODUCTS, AND ARTICLE OBTAINED
FR2738798A1 (en) PACKAGING PROCESS AND CONTAINER USING SAME WITH LONG-TERM ADHESIVE
BE1020393A3 (en) PACKAGING MACHINE UNDER PACKAGING HULL AND PACKAGING HULL.
WO1992018396A1 (en) Opening device for flexible bags for packaging compressible products
WO2004037664A1 (en) Resealable flexible package
EP1171355B1 (en) Crate, set of blanks, method for opening a crate and method and machine for the production of said crate
WO1993016928A1 (en) Container made of flexible material, method and installation for its fabrication
EP1919802B1 (en) Package for packaging a food product, cutting installation and method
CH617903A5 (en) Envelope for packaging products, method of making it and device implementing this method
FR2772009A1 (en) Container for e.g. moist wipes
EP0377375B1 (en) Package with folding flaps formed from an l-shaped carton strip
FR3093705A1 (en) Easy-to-recycle packaging bag, and method of continuously manufacturing a plurality of such bags
FR2823722A1 (en) Re-closable flexible packaging comprises two part body whose edges are connected by longitudinal weld, one part extends beyond weld to form flap having tearing line delimiting band and adhesive
WO2008040916A2 (en) Method of producing a packaging pouch, and resulting packaging pouch
EP1836110B1 (en) Plastic packaging and production and packaging method
EP1855963B1 (en) Device for opening a package in the form of a triangular portion
EP2723652A1 (en) Sachet for a sample of a fluid product
EP3708510B1 (en) Packaging bag and process for the continuous manufacture of a plurality of bags of this type
EP1120356B2 (en) Package for dispensing sheet-like articles one by one
EP0432028A1 (en) Method for making a package, package thus obtained and apparatus for carrying out the method
EP1234687B1 (en) Information document insertable into the packaging of a food product, said leaflet and its method of fabrication
WO2018033673A9 (en) Abrasive-sheets packaging designed to form a sanding block
EP0308318A1 (en) Folded package with an interior lining, device to package products in such a package and manufacturing device for such a package

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 CH DE ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19950706

17Q First examination report despatched

Effective date: 19960723

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

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

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES FR GB IT LI 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: 19980722

Ref country code: ES

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

Effective date: 19980722

ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980803

REF Corresponds to:

Ref document number: 69411865

Country of ref document: DE

Date of ref document: 19980827

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

Ref country code: LI

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

Effective date: 19981231

Ref country code: CH

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

Effective date: 19981231

Ref country code: BE

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

Effective date: 19981231

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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

BERE Be: lapsed

Owner name: S.A. SOCOPLAN

Effective date: 19981231

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20131211

Year of fee payment: 20

Ref country code: GB

Payment date: 20131211

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20131211

Year of fee payment: 20

Ref country code: IT

Payment date: 20131224

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69411865

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69411865

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20141215

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20141215