EP0516393B1 - Sachet refermable et procédé et dispositif pour la formation, le remplissage et le scellement de celui-ci - Google Patents

Sachet refermable et procédé et dispositif pour la formation, le remplissage et le scellement de celui-ci Download PDF

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Publication number
EP0516393B1
EP0516393B1 EP92304792A EP92304792A EP0516393B1 EP 0516393 B1 EP0516393 B1 EP 0516393B1 EP 92304792 A EP92304792 A EP 92304792A EP 92304792 A EP92304792 A EP 92304792A EP 0516393 B1 EP0516393 B1 EP 0516393B1
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EP
European Patent Office
Prior art keywords
pouch
fastener
walls
strip material
lengths
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
EP92304792A
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German (de)
English (en)
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EP0516393A1 (fr
Inventor
Terrence W. Herber
Mark J. Yunker
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.)
Mondelez International Inc
Original Assignee
Kraft Foods Inc
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Filing date
Publication date
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Publication of EP0516393A1 publication Critical patent/EP0516393A1/fr
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Publication of EP0516393B1 publication Critical patent/EP0516393B1/fr
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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
    • 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
    • B65B61/188—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying or incorporating profile-strips, e.g. for reclosable bags
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/08—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing
    • B65B9/093—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing the web having intermittent motion

Definitions

  • the invention relates generally to packaging for food products, and more particularly to reclosable pouches and methods and apparatus for forming, filling and sealing such pouches.
  • the package In providing a commercially viable package through FFS operations, several considerations must be addressed. One consideration is that the package must be capable of being opened by the consumer without undue difficulty. Another consideration is that the package must be economical to produce, and should be capable of being formed, filled and sealed at relatively high rates. It is also desirable that the package be durable so as to withstand the stresses of the FFS operation and subsequent shipping and handling without damage and without deterioration of appearance.
  • One particular package configuration that has been used commercially in recent years has a generally rectangular configuration with a reclosable zipper extending within a fold along one edge, as illustrated in, e.g., U.S. Patent No. 4,589,145.
  • the package material may be slit along the folded edge to gain access to the zipper, and the zipper is then opened to provide access to the product.
  • the disposition of the zipper along a long edge of the package improves access to the package interior as compared with disposition of the zipper along one of the short edges.
  • each package is to contain a stack of sliced product or a relatively large item such as a block of cheese
  • the stack or block may be placed on a horizontally-oriented web and the web can be wrapped around the item to form the package as described in the above-referenced Patent No. 4,589,145.
  • the package When handling products comprised of numerous small pieces such as shredded cheese, cereal, etc., it is generally desirable to have the package partly formed into a pouch which is open at one end, or along one side, with the pouch oriented so that the open end or side is at the top of the partially-formed pouch, and to dispense product into the partially-formed pouch through the open top or side.
  • Patent No. 4,945,714 Another approach is illustrated by Patent No. 4,945,714, in which the pouches travel horizontally as they are formed, filled and sealed.
  • the pouch is formed in an inverted orientation from a single web which has a fold at its lower end and a zipper within the fold.
  • Two potential problems with this approach are that penetration of product into the zipper may occur, and that if the upper end of the pouch is perforated to facilitate opening, or punched to receive a display hanger, loss of hermeticity would result.
  • U.S. Patent No. 4,894,975 there is disclosed a method and apparatus for forming a tube and bag from a supply of thin thermoplastic film.
  • the bag is reclosable by a zipper strip heat sealed to the film and has a tamper-evident juncture between the edges of the film.
  • the invention provides a novel pouch for containing food products, and a novel method and apparatus for forming, filling and sealing the pouch in an inverted orientation.
  • the method involves providing one or more webs of material to define a pair of walls for the pouch, orienting the wall material so that the walls are substantially vertical, with the web having a horizontal longitudinal axis; providing interengageable strips of reclosable fastener material along the web adjacent the lower edges of the walls; forming vertical side seals; partially separating the pouches from one another by vertical slitting the web(s); filling the pouches through their open bottoms while in inverted orientation; and sealing the bottoms of the inverted pouches.
  • Each of the strips of reclosable fastener material has one or more fastener members thereon.
  • a hermetic peelable seal is provided between the product contained in the interior of the pouch and the reclosable fastener members.
  • the peelable seal is preferably formed as a relatively narrow band on the fastener strip material, rather than on the wall material. This provides a saving of material cost as compared with coating the entire interior surface of the pouch walls with materials suitable for formation of a peelable seal.
  • the peelable seal is sealed prior to filling of the pouches so that product cannot contact the fastener members during or after the form, fill, seal operation.
  • a method of forming, filling and sealing a hermetic pouch in an inverted orientation comprising: providing wall material for defining a pair of walls for the pouch; orienting said wall material so that said walls are substantially vertical; positioning first and second lengths of fastener strip material between said walls, said lengths of fastener strip material having complementary mechanically interengageable fastener members thereon; sealing said lengths of fastener strip material to said walls, with each length of fastener strip material being joined to a respective one of said pair of walls; forming a pair of substantially vertical seals joining said walls, so as to define a product-receiving pocket having a width determined by the distance between said vertical seals; dispensing product downward into said product-receiving pocket to fill said pocket to a predetermined level; forming a horizontal seal generally between said walls above said predetermined level; and separating said pouch from said wall material; characterized in that the method further comprises forming a linear horizontal peelable seal above said fastener members
  • an apparatus for forming, filling and sealing a hermetic pouch in an inverted orientation comprising: means for supplying wall material for defining a pair of walls for the pouch; means for orienting said wall material so that said walls are substantially vertical; means for positioning first and second lengths of fastener strip material between said walls, said lengths of fastener material having complementary mechanically-interengageable fastener members thereon; means for forcing said fastener members into interlocking engagement with one another; means for sealing said lengths of fastener strip material to said walls, with each length of fastener strip material being joined to a respective one of said pair of walls; means for forming a pair of substantially vertical seals joining said walls, so as to define a product-receiving pocket having a width determined by the distance between said vertical seals; means for dispensing product downward into said pocket to fill said pocket to a predetermined level; means for forming a generally horizontal seal between said walls above said predetermined level; and means for separating said pouch from said wall material;
  • a generally rectangular pouch for containing a food product comprising: a pair of generally rectangular walls, each wall having a top edge, a bottom edge, and a pair of side edges; said walls being joined by heat seals along their bottom edges and side edges; said pouch having a pair of fastener strips attached to opposite inner surfaces of upper portions of said walls and extending the width of the pouch between the side edges of said generally rectangular walls; and said fastener strips having complementary mechanically interengageable fastener members thereon; characterized in that said fastener has a peelable seal extending the length of said fastener strips beneath said fastener members; and that said pouch further comprises means defining a hole through said pouch above said fastener members, and means defining a line of weakness above said hole to facilitate opening of the pouch by tearing away an upper portion thereof.
  • the sealing of the peelable seal may be carried out prior to or simultaneously with sealing of the fastener strip material to the wall material.
  • the sealing may be accomplished by a pair of reciprocable sealing bars which provide predetermined sealing pressure to the seal area while transferring heat thereto.
  • Gas flush techniques may be employed to flush the pouch with N2 gas during the form, fill, seal operation.
  • the pouch is preferably provided with a line of perforation adjacent its top end to provide easy-open access to the reclosable fastener material, and a hole to receive a display hanger above the fastener members and beneath the perforations. Referring to the completed pouch in an upright position, the interengageable fastener members are spaced a short distance beneath the top of the pouch.
  • FIG. 1 is an elevational view of a pouch in accordance with a first embodiment of the invention.
  • FIG. 2 is a perspective view of the pouch of FIG. 1, showing a removable portion of the pouch being torn away to permit access to the interior thereof.
  • FIG. 3 is a sectional view taken substantially along line 3-3 in FIG. 1.
  • FIG. 4 is a sectional view similar to that of FIG. 3, showing the pouch in an opened configuration.
  • FIG. 5 is a sectional view similar to that of FIG. 3, illustrating a pouch in accordance with a second embodiment of the invention.
  • FIG. 6 is a diagrammatical plan view of apparatus for forming, filling and sealing pouches in accordance with the invention.
  • FIG. 7 is an elevational view of the apparatus of FIG. 6.
  • FIG. 8 is a fragmentary diagrammatical plan view of apparatus in accordance with an alternate embodiment of the invention.
  • the invention is generally embodied in a reclosable pouch and a method and apparatus for forming, filling, and sealing the pouch.
  • FIGS. 1-4 illustrate a first embodiment of the invention, comprising a pouch 10 which has first and second generally rectangular walls 12, 14 sealed to one another along their bottom edges 16, 18 and side edges 20, 22. Extending across upper portions of the respective walls are closure members 24, 26.
  • Each closure member 24, 26 has a substantially planar outer surface 28, 30 which is sealed to its respective associated wall.
  • the closure members On their inner surfaces the closure members have complementary interlocking zipper profiles 32, 34 extending horizontally along their entire lengths to provide reclosability for the pouch 10.
  • a non-peelable upper seal 36 is provided along the upper edge of the pouch between upper portions 35, 37 of the closure members 24 and 26.
  • a plurality of gripper beads 38 extend longitudinally above the zipper profiles 32, 34 on the respective closure members 24 and 26 between the zipper profiles and the upper seal 36.
  • each closure member has a single pair of gripper beads 38 formed thereon to facilitate manual gripping and separation of the fastener profiles 32 and 34.
  • the peelable seal 39 is comprised of strips of polymeric material 39a, 39b on the respective closure members 24 and 26.
  • the strength of the seal 39 is such that it can be readily opened by application of manual outward force to the closure members 24 and 26 by the consumer, but is not susceptible to accidental opening due to normal stresses associated with product containment during the FFS operation, and subsequent shipping, handling and display.
  • the seal preferably has an opening force of from about 1.5 to about 6.0 lbs. (from about 0.68 to about 2.73 kg) and more preferably from about 2.5 to about 3.5 lbs. (from about 1.14 to about 1.6 kg) .
  • the peelable seal 39 is substantially impermeable to air, as well as to liquids which may be present in the pouch. Accordingly, the location of the peelable seal interiorly of the zipper profiles 32 and 34 prevents any contents of the pouch from leaking into the zipper profiles and excludes the inter-locking members of the zipper from the hermetic seal area.
  • the strips of polymeric material 39a, 39b which form the peelable seal preferably comprise polymeric materials which are known in the art to be suitable for this purpose, such as one or more of the following: polyethylene/EVA with a VA content of between 4% and 22%; polybutylene; Surlyn; Bynel; Saran (PVDC) copolymer; ethylene acrylic acid copolymer; or methacrylic acid copolymer.
  • polyethylene/EVA with a VA content of between 4% and 22% polybutylene
  • Surlyn Surlyn
  • Bynel Saran (PVDC) copolymer
  • ethylene acrylic acid copolymer or methacrylic acid copolymer.
  • a hermetic peelable seal may be formed between a Saran copolymer lamina and an EVA lamina.
  • Each of the pouch walls 12 and 14 is preferably made of a suitable laminated material having barrier properties which, when sealed as described herein, provide hermeticity for the pouch.
  • a suitable film for cheese shreds may comprise a linear low-density polyethylene inner layer in combination with a polyester or nylon outer layer, and a middle adhesive layer of polyethylene.
  • a nylon outer layer is particularly useful in connection with Swiss cheese, where a degree of CO2 gas permeability is desirable in the packaging.
  • the closure members 24 and 26 are preferably made of a low EVA content polyethylene.
  • the closure members may be attached to the walls by, e.g., a thin layer of Surlyn on each of the closure members and the walls.
  • a hole 86 is provided in an upper portion of the pouch.
  • the hole extends through upper portions of the walls 12, 14 and through the closure members 24 and 26, which provide a relatively tough and strong periphery for the hole to support the weight of the pouch.
  • one or more of the ribs or beads 38 may extend over the hole to further increase the ability of the pouch to resist tearing at the hole 86 when subjected to rough handling during placement on a retail display rack and/or removal therefrom. Disposition of the hole above the peelable seal 39 enables hermeticity to be maintained. Lines of weakness 88 are formed through the walls 12, 14.
  • the lines of weakness 88 in the illustrated embodiment take the form of perforations formed opposite one another through the respective walls and closure members. The placement of the perforations 88 above the hole 86 enables the pouch to be supported by a display rack without subjecting the line of perforations 88 to transverse tensile stresses which might cause accidental tearing thereof.
  • FIG. 5 illustrates a pouch 41 in accordance with a second embodiment of the invention.
  • the pouch of FIG. 5 is generally similar to that of FIGS. 1-4, in that it comprises a pair of generally rectangular walls 40 and 42, in combination with a pair of closure members 44 and 46 having interlocking zipper profiles 48 and 50 thereon.
  • Gripper beads 52 are provided above the zipper profiles and a peelable seal 54 extends therebelow.
  • the walls 40 and 42 are sealed to one another along their bottom edges 56, 58 and side edges.
  • the pouch of FIG. 5 differs from that of FIGS. 1-4 in that its upper seal 64 is formed directly between the walls 40 and 42 of the pouch, rather than between the closure members.
  • closure members 44 and 46 are spaced beneath the upper edges of the walls 40 and 42, leaving a peripheral area along the top of each wall for the upper seal 42.
  • a hole for receiving a display hanger is punched through an upper portion of the pouch, and lines of weakness, e.g., perforations 65, are provided opposite one another in the walls immediately beneath the seal area 64.
  • the walls of the pouch may be constructed of a single web, rather than two separate webs.
  • the pouch in accordance with this embodiment is substantially similar to that of FIG. 5, except that the pouch material is continuous along its upper edge, rather than comprising two separate walls joined by a seal, and the pouch material provides a snug fit around the upper edges of the closure members 44 and 46.
  • a hole for receiving a display hanger is disposed adjacent the top of the pouch, with lines of perforation therebeneath.
  • FIGS. 6 and 7 illustrate a method and apparatus for forming, filling and sealing pouches in accordance with a preferred embodiment of the invention. As described below, the pouches are formed, filled and sealed in an inverted configuration. The method will be described with reference to the pouch 10 described above with reference to FIGS. 1-4, by describing the successive steps involved in the formation, filling and sealing of the pouch 10 in its inverted configuration.
  • the material for the walls is provided by first and second rolls 66 and 68 of suitable laminated film in web form.
  • the material for the closure members is provided by first and second rolls 70 and 72 of closure strip material.
  • the wall material as supplied by rolls 66 and 68 comprises webs 90 and 92 of laminated polymeric material.
  • the closure strip material comprises a first continuous strip 94 having a female zipper profile thereon, and a second strip 96 having a mole profile thereon.
  • the first step in the method of FIGS. 6 and 7 is mating the complementary zipper profiles 32 and 34, i.e., pressing the zipper profiles into interlocking engagement with one another.
  • This step is carried out at a zipper-assembly station which comprises a shoe 75 having an internal surface 76 configured to maintain the opposite profiles in alignment relative to one another, and to cam the closure strips 94 and 96 into interlocking engagement as they advance through the shoe.
  • the next step is to form the peelable seal 39 between the closure members 24 and 26 at a sealing station 78.
  • a pair of horizontally oriented, reciprocable heat seal bars 79 are advanced toward one another to apply pressure and heat to the lower portions of the closure members which are to form the peelable seal 39.
  • the advancement of the closure strip material is intermittent, so that the strip material is at rest while the heat seal bars 79 are closed.
  • the next step comprises sealing of the outer surfaces of the closure strips 94 and 96 to the inner surfaces of their respective associated wall webs 90 and 92. This is accomplished at an assembly/sealing station 80 at which a second pair of horizontal heat sealing bars 81 are employed to effect the desired sealing.
  • the closure strips are positioned along the lower edges of the wall webs as the pouch is formed in its inverted configuration, so that they will extend across the top of the finished pouch in its upright configuration.
  • the line of weakness 88 is then formed by a conventional notched perforation wheel on the line at a perforation station 140.
  • the side margins of the pouches are sealed by vertical sealing bars 82.
  • the sealing bars 82 crush the closure strips at the areas 84 which correspond to the ends of the closure members 24 and 26 in the finished pouch.
  • the sealing bars provide an impermeable marginal seal area on each side of the pouch being formed, along the entire vertical dimension of the pouch, or at least from the bottom edges 16, 18 of the walls through the peelable seal 54.
  • the vertical sealing bars 82 preferably include cutting elements to form vertical slits 139 in the wall webs 90 and 92, extending upward from the bottom edges of the respective wall webs to a predetermined level, leaving links 141 of wall material intact along the upper edges of the wall webs, while partially separating the pouches from one another.
  • the peelable seal 39 having been formed between the closure members, the formation of the side seals enables product 100 to be retained in each of the pouches being formed.
  • the as-yet-unsealed bottom 98 of the inverted pouch is held open to provide an opening to receive the product, and the pocket is filled to a desired level through a dispensing spout 102, with the peelable seal 29 preventing the product from reaching the zipper.
  • the inverted pouch is then gas flushed with N2 or CO2, closed, and sealed along its horizontal top and bottom edges by additional horizontally-oriented sealing bars 104 and 106.
  • the pouch 10 is cut from the preceding and succeeding pouches by vertically oriented knives 108 which sever the links 141 and trim the side edges of the pouches, to complete the FFS operation.
  • punch apparatus 142 may be provided at a convenient location on the line.
  • the punching operation takes place immediately after sealing of the vertical seals of the pouch, and prior to filling.
  • the order of the steps may be varied.
  • first and second webs 110, 112 of wall material are provided by first and second rolls 114 and 116, which are supported for rotation about vertical axes.
  • Material for closure members is provided by first and second rolls 118 and 120 of closure strip material.
  • One roll supplies closure strip 122 having a female profile, while the other provides material 124 having a male profile.
  • the lengths of closure strip material 122 and 124 are joined to their respective associated webs of wall material 110 and 112 at two parallel heat sealing stations 126 and 128.
  • the resulting composite webs of wall and fastener material 130 and 132 then advance over vertical guide rollers 134 and 136 to a sealing assembly station 138 where the zipper profiles of the closure material are interlocked, and the peelable seal formed in a manner similar to that described above with reference to the embodiment of FIGS. 6 and 7.
  • the remaining steps of forming the side seal, filling, forming top and bottom seals, and separating the finished pouches are carried out as described in the embodiment of FIGS. 6 and 7.
  • the formation of the peelable seal is combined with the operation of sealing the fastener strips to the webs of wall material.
  • This method is similar to that of FIGS. 6 and 7, except that the sealing station 78 may be eliminated, and the assembly/sealing station 80 adapted to provide heat and pressure to effect both sealing operations simultaneously.
  • the invention provides a novel pouch and method and apparatus for forming, filling and sealing the pouch.
  • the invention is not limited to the embodiments described above or to any particular embodiments.
  • the invention is more particularly pointed out in the following claims.

Claims (16)

  1. Méthode employée pour former, remplir et sceller un sachet hermétique (10; 41) en position renversée, cette méthode consistant à:
       prévoir un matériau de réalisation de parois (90, 92; 110, 112) en vue de définir une paire de parois (12, 14; 40, 42) pour le sachet (10; 41);
       orienter ce matériau de réalisation de parois (90, 92; 110, 112) de manière à ce que les parois (12, 14; 40, 42) se trouvent essentiellement à la verticale;
       placer un premier et un deuxième tronçons de bande de fermeture (94, 96; 122, 124) entre les parois (12, 14; 40, 42), ces tronçons de bande de fermeture (94, 96; 122, 124) étant surmontés d'éléments de fermeture complémentaires mécaniquement enclenchables (32, 34; 48, 50);
       sceller ces tronçons de bande de fermeture (94, 96; 122, 124) aux parois (12, 14; 40, 42), chaque tronçon de bande de fermeture (94, 96; 122, 124) étant joint à la moitié respective de la paire de parois (12, 14; 40, 42);
       former une paire de scellements disposés essentiellement à la verticale et servant à joindre les parois (12, 14; 40, 42), de manière à définir une poche réceptrice de produit dont la largeur est déterminée par la distance entre les scellements verticaux;
       distribuer du produit (100) vers le bas dans la poche réceptrice de produit de manière à remplir la poche jusqu'a un niveau prédéterminé;
       former un scellement horizontal d'une manière générale entre les parois (12, 14; 40, 42) au-dessus du niveau prédéterminé; et
       séparer le sachet (10; 41) du matériau de réalisation de parois (90, 92; 110, 112);
       caractérisée par le fait que la méthode consiste en outre à former un scellement horizontal linéaire détachable (39; 54) au-dessus des éléments de fermeture (32, 34; 48, 50) de sorte que, lors de la formation de la poche réceptrice de produit, le scellement détachable (39; 54) se trouve disposé entre la poche et les éléments de fermeture (32, 34; 48, 50) afin de tenir le produit (100) isolé des éléments de fermeture (32, 34; 48, 50) pendant la distribution du produit (100) dans la poche.
  2. Méthode, selon la revendication 1, caractérisée par le fait que le scellement détachable (39; 54) est formé par l'étape qui consiste à appliquer de la chaleur et de la pression sur une zone de scellement (39a, 39b) de la bande de fermeture (94, 96; 122, 124) et en même temps par l'étape qui consiste à sceller les tronçons de bande de fermeture (94, 96; 122, 124) aux parois (12, 14; 40, 42).
  3. Méthode, selon la revendication 2, caractérisée par le fait que l'étape qui consiste à appliquer de la chaleur et de la pression sur la zone de scellement (39a, 39b) et l'étape qui consiste à sceller les tronçons de bande de fermeture (94, 96; 122, 124) aux parois (12, 14; 40, 42) sont effectuées par une paire de barres de scellement horizontales (104, 106) qui agissent en réciprocité vers l'intérieur et vers l'extérieur pour appliquer la chaleur et la pression aux parois (12, 14; 40, 42) et à la bande de fermeture (94, 96; 122, 124).
  4. Méthode, selon l'une quelconque des revendications 1 à 3, caractérisée par le fait qu'elle comporte en outre l'étape qui consiste à nettoyer le sachet (10; 41) avec de l'azote gazeux.
  5. Méthode, selon l'une quelconque des revendications 1 à 4, caractérisée par le fait qu'elle consiste en outre à:
       sceller ensemble les tronçons de bande de fermeture (94, 96; 122, 124) au-dessous des éléments de fermeture (32, 34; 48, 50) afin de former un scellement complémentaire (36) entre les tronçons de bande de fermeture (94, 96; 122, 124); et aussi
       prévoir une ou plusieurs lignes d'affaiblissement (88; 65) entre le scellement complémentaire (36) et les éléments de fermeture (32, 34; 48, 50) afin de faciliter la séparation de ce scellement complémentaire (36) à partir du sachet (10; 41) sans séparer les éléments de fermeture (32, 34; 48, 50) du sachet (10; 41).
  6. Méthode, selon la revendication 5, caractérisée par le fait qu'elle consiste en outre à: former un trou (86) à travers le sachet (10; 41) au-dessous des éléments de fermeture (32, 34; 48, 50).
  7. Méthode, selon la revendication 1, caractérisée par le fait qu'elle consiste en outre à former un scellement complémentaire (64) entre les parois (12, 14; 40, 42) au-dessous des premier et deuxième tronçons de bande de fermeture (94, 96; 122, 124), et prévoir une ou plusieurs lignes d'affaiblissement (65) entre le scellement complémentaire (64) et les tronçons de bande de fermeture (94, 96; 122, 124).
  8. Méthode, selon la revendication 7, caractérisée par le fait qu'elle consiste en outre à: former un trou (86) à travers le sachet (10; 41) au-dessous des éléments de fermeture (32, 34; 48, 50).
  9. Dispositif employé pour former, remplir et sceller un sachet hermétique (10; 41) en position renversée, ce dispositif comportant:
       des moyens (66, 68; 114, 116) servant à alimenter un matériau de réalisation de parois (90, 92; 110, 112) en vue de définir une paire de parois (12, 14; 40, 42) pour le sachet (10; 41);
       des moyens servant à orienter ce matériau de réalisation de parois (90, 92; 110, 112) de manière à ce que les parois (12, 14; 40, 42) se trouvent essentiellement à la verticale;
       des moyens servant à placer un premier et un deuxième tronçons de bande de fermeture (94, 96; 122, 124) entre les parois (12, 14; 40, 42), ces tronçons de bande de fermeture (94, 96; 122, 124) étant surmontés d'éléments de fermeture complémentaires mécaniquement enclenchables (32, 34; 48, 50);
       des moyens (75; 138) servant a forcer les éléments de fermeture (32, 34; 48, 50) à s'enclencher l'un avec l'autre;
       des moyens (80; 126, 128) servant à sceller ces tronçons de bande de fermeture (94, 96; 122, 124) aux parois (12, 14; 40, 42), chaque tronçon de bande de fermeture (94, 96; 122, 124) étant joint à la moitié respective de la paire de parois (12, 14; 40, 42);
       des moyens (82) servant à former une paire de scellements disposés essentiellement à la verticale et servant à joindre les parois (12, 14; 40, 42), de manière à définir une poche réceptrice de produit dont la largeur est déterminée par la distance entre les scellements verticaux;
       des moyens (102) servant à distribuer du produit (100) vers le bas dans la poche réceptrice de produit de manière à remplir la poche jusqu'à un niveau prédéterminé;
       des moyens (104, 106) ) servant à former un scellement horizontal d'une manière générale entre les parois (12, 14; 40, 42) au-dessus du niveau prédéterminé; et
       des moyens (108) servant à séparer le sachet (10; 41) du matériau de réalisation de parois (90, 92; 110, 112);
       caractérisé par le fait que le dispositif comporte en outre des moyens (78, 79) servant à former un scellement horizontal linéaire détachable (39; 54) au-dessus des éléments de fermeture (32, 34; 48, 50) dans une zone de scellement de même étendue que les éléments de fermeture (32, 34; 48, 50) en appliquant de la chaleur et de la pression sur la zone de scellement de manière à former un scellement détachable (39; 54) liant ensemble les tronçons de bande de fermeture (94, 96; 122, 124).
  10. Dispositif, selon la revendication 9, caractérisé par le fait qu'il comporte en outre:
       des moyens servant à sceller ensemble les tronçons de bande de fermeture (94, 96; 122, 124) au-dessous des éléments de fermeture (32, 34; 48, 50) afin de former un scellement complémentaire (36) entre les tronçons de bande de fermeture (94, 96; 122, 124); et aussi
       des moyens (140) servant à prévoir une ou plusieurs lignes d'affaiblissement (88) afin de faciliter la séparation de ce scellement complémentaire (36) à partir du sachet (10; 41) sans séparer les éléments de fermeture (32, 34; 48, 50) du sachet (10; 41).
  11. Dispositif, selon la revendication 10, caractérisé par le fait qu'il comporte en outre des moyens (142) servant à former un trou (86) à travers le sachet (10; 41) au-dessous des éléments de fermeture (32, 34; 48, 50).
  12. Dispositif, selon la revendication 9, caractérisé par le fait qu'il comporte en outre des moyens servant à former un scellement complémentaire (64) entre les parois (12, 14; 40, 42) au-dessous des premier et deuxième tronçons de bande de fermeture (94, 96; 122, 124), et des moyens (140) servant à prévoir une ou plusieurs lignes d'affaiblissement (65) entre le scellement complémentaire (64) et les tronçons de bande de fermeture (94, 96; 122, 124).
  13. Dispositif, selon la revendication 12, caractérisé par le fait qu'il comporte en outre des moyens (142) servant à former un trou (86) à travers le sachet (10; 41) au-dessous des éléments de fermeture (32, 34; 48, 50).
  14. Sachet de forme généralement rectangulaire (10; 41) servant à contenir un produit alimentaire (100) et comportant:
       une paire de parois de forme généralement rectangulaire (12, 14; 40, 42), chaque paroi comportant un bord supérieur, un bord inférieur (16, 18; 56, 58), et une paire de bords latéraux (20, 22);
       les parois (12, 14; 40, 42) étant jointes par des thermoscellages le long des bords inférieurs (16, 18; 56, 58) et des bords latéraux (20, 22);
       le sachet (10; 41) comportant une paire de bandes de fermeture (24, 26; 44, 46) fixées aux surfaces internes opposées (28, 30) des parties supérieures des parois (12, 14; 40, 42) et s'étendant sur toute la largeur du sachet (10; 41) entre les bords latéraux (20, 22) des parois de forme généralement rectangulaire (12, 14; 40, 42); et aussi
       les bandes de fermeture (24, 26; 44, 46) étant surmontées d'éléments de fermeture complémentaires mécaniquement enclenchables (32, 34; 48, 50)
       caractérisé par le fait que les bandes de fermeture (24, 26; 44, 46) comportent un scellement détachable (39; 54) s'étendant le long des bandes de fermeture (24, 26; 44, 46) au-dessous des éléments de fermeture (32, 34; 48, 50); et aussi
       par le fait que le sachet (10; 41) comporte en outre des moyens servant à définir un trou (86) à travers le sachet (10; 41) au-dessus des éléments de fermeture (32, 34; 48, 50), et des moyens servant à définir une ligne d'affaiblissement (88, 65) au-dessus du trou (86) pour faciliter l'ouverture du sachet (10; 41) en déchirant une partie supérieure du sachet.
  15. Sachet, selon la revendication 14, caractérisé par le fait qu'il comporte en outre un scellement supérieur horizontal (36; 64) disposé au-dessus de la ligne d'affaiblissement (88, 65).
  16. Sachet, selon la revendication 14 ou 15, caractérisé par le fait qu'au moins l'une des bandes de fermeture (24, 26; 44, 46) comporte au moins un bourrelet horizontal (38; 52) s'étendant le long de la bande au-dessus des éléments de fermeture complémentaires mécaniquement enclenchables (32, 34; 48, 50) et au-dessus du trou (86), au-dessous de la ligne d'affaiblissement (88, 65).
EP92304792A 1991-05-31 1992-05-27 Sachet refermable et procédé et dispositif pour la formation, le remplissage et le scellement de celui-ci Expired - Lifetime EP0516393B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70891491A 1991-05-31 1991-05-31
US708914 1991-05-31

Publications (2)

Publication Number Publication Date
EP0516393A1 EP0516393A1 (fr) 1992-12-02
EP0516393B1 true EP0516393B1 (fr) 1995-10-04

Family

ID=24847677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92304792A Expired - Lifetime EP0516393B1 (fr) 1991-05-31 1992-05-27 Sachet refermable et procédé et dispositif pour la formation, le remplissage et le scellement de celui-ci

Country Status (14)

Country Link
EP (1) EP0516393B1 (fr)
JP (1) JPH0692362A (fr)
CN (1) CN1033012C (fr)
AT (1) ATE128686T1 (fr)
AU (1) AU644288B2 (fr)
CA (2) CA2069030C (fr)
DE (1) DE69205214T2 (fr)
DK (1) DK0516393T3 (fr)
ES (1) ES2080446T3 (fr)
GR (1) GR3018530T3 (fr)
HK (1) HK1896A (fr)
MX (1) MX9202531A (fr)
NZ (1) NZ242959A (fr)
TW (1) TW200439B (fr)

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US5275491A (en) * 1992-01-10 1994-01-04 Kabushiki Kaisha Hosokawa Yoko Zippered bags and method of forming the same
WO1994019250A1 (fr) * 1993-02-23 1994-09-01 Minigrip Flexible Packaging Limited Procede et appareil de remplissage de sacs en plastique interconnectes
US5435864A (en) * 1993-04-22 1995-07-25 Minigrip, Inc. Reclosable zipper with tamper evident feature
US5425825A (en) * 1993-04-22 1995-06-20 Rasko; George Reclosable zipper with tamper evident feature
NZ272804A (en) * 1995-12-18 1997-02-24 Minigrip Flexible Packaging Lt Method of bag filling by opening and closing string of bags having stable feet
US5672009A (en) * 1996-05-21 1997-09-30 Illinois Tool Works Inc. Reclosable pouch and zipper therefor
EP0980829A1 (fr) * 1997-11-20 2000-02-23 Charles E. Cloud Procédé et appareillage pour former, remplir et sceller de manière continue des emballages tout en les maintenant reliés l'un à l'autre
US6609353B1 (en) * 1998-06-08 2003-08-26 Illinois Tool Works Inc. Application system for sliders at form-fill-seal machine
IT1304213B1 (it) 1998-10-23 2001-03-13 Pfm Spa Confezione in film pelabile per prodotti alimentari, e procedimentoper l'ottenimento della stessa.
US6327837B1 (en) * 1999-07-15 2001-12-11 Illinois Tool Works Inc. Slide-zipper assembly with peel seal and method of making packages with slide zipper assembly
US6588176B1 (en) 1999-12-17 2003-07-08 Reynolds Consumer Products, Inc. Methods of manufacturing reclosable packages using transverse closure and slider applicator
US6290393B1 (en) * 2000-07-21 2001-09-18 Reynolds Consumer Products, Inc. Slider reclosable packages with dual peel seals
US6868649B1 (en) 2000-11-03 2005-03-22 Bodolay Packaging, A Division Of B&M Zipper applicator for packaging machine
US20020094137A1 (en) * 2001-01-16 2002-07-18 Schneider John H. Tamper evident resealable packaging
US6842973B2 (en) 2002-03-11 2005-01-18 Illinois Tool Works Inc. Apparatus for attaching sliders onto zipper bags and film
US6954970B2 (en) 2002-03-11 2005-10-18 Illinois Tool Works Inc. Insertion apparatus for attaching sliders onto zipper bags and film
WO2004108546A1 (fr) * 2003-06-04 2004-12-16 Ishizaki Shizai Co., Ltd. Bande a fermeture a glissiere et sac equipe de ladite bande
JP4801328B2 (ja) * 2004-06-04 2011-10-26 出光ユニテック株式会社 チャックテープ、チャックテープ付き包装袋及びチャックテープ付き包装袋の製造方法
US7607834B2 (en) 2004-08-02 2009-10-27 R.P. Scherer Technologies, Inc. Peelable pouch containing a single or multiple dosage forms and process of making same
JP2006087452A (ja) * 2004-09-21 2006-04-06 Dainippon Printing Co Ltd チャックテープおよびチャックテープ付き袋
EP1820744B1 (fr) * 2004-12-07 2015-02-25 Idemitsu Unitech Co., Ltd. Dispositif de fixation et sac avec dispositif de fixation
JP4811558B2 (ja) * 2005-03-24 2011-11-09 アヲハタ株式会社 ジッパー付包装袋
JP2007246119A (ja) * 2006-03-15 2007-09-27 Kuruu:Kk 袋体
JP4874742B2 (ja) 2006-08-21 2012-02-15 出光ユニテック株式会社 カットテープ付きチャックテープ、その製造方法、およびチャックテープ付き包装袋
US20090257686A1 (en) 2008-04-14 2009-10-15 Illinois Tool Works Inc. Flow-wrapper package with reclosure
JP4604287B1 (ja) * 2010-07-14 2011-01-05 株式会社リングストン チャック付二重袋及びその製造方法
EP2821348A4 (fr) * 2012-02-28 2015-10-28 Takazono Corp Procédé d'emballage de comprimés et dispositif d'emballage de comprimés
EP2727847A1 (fr) * 2012-11-01 2014-05-07 Unilever N.V. Procédé de fabrication d'un sachet comportant au moins 2 compartiments
JP2017197247A (ja) * 2016-04-28 2017-11-02 凸版印刷株式会社 チャック付きパウチ
PL3497032T3 (pl) * 2016-08-08 2023-07-24 Mespack Cloud, Llc Konfiguracja formy do formowania woreczków, sposób i woreczek
CN113165781A (zh) * 2018-09-25 2021-07-23 特克逊国际有限公司 袋子及相关方法

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US5067822A (en) * 1989-04-24 1991-11-26 Reynolds Consumer Products, Inc. Method of forming recloseable packages, profiles used therein, and packages produced thereby
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Also Published As

Publication number Publication date
GR3018530T3 (en) 1996-03-31
CA2507553A1 (fr) 1992-12-01
DK0516393T3 (da) 1996-02-12
AU1637392A (en) 1992-12-03
CA2069030A1 (fr) 1992-12-01
DE69205214T2 (de) 1996-05-02
ATE128686T1 (de) 1995-10-15
CA2069030C (fr) 2005-08-16
MX9202531A (es) 1992-11-01
AU644288B2 (en) 1993-12-02
ES2080446T3 (es) 1996-02-01
DE69205214D1 (de) 1995-11-09
JPH0692362A (ja) 1994-04-05
NZ242959A (en) 1994-10-26
HK1896A (en) 1996-01-12
TW200439B (fr) 1993-02-21
CN1033012C (zh) 1996-10-16
CN1067414A (zh) 1992-12-30
EP0516393A1 (fr) 1992-12-02

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