EP2424681A1 - Dispositif de conditionnement et de distribution du type flacon-poche - Google Patents

Dispositif de conditionnement et de distribution du type flacon-poche

Info

Publication number
EP2424681A1
EP2424681A1 EP10727052A EP10727052A EP2424681A1 EP 2424681 A1 EP2424681 A1 EP 2424681A1 EP 10727052 A EP10727052 A EP 10727052A EP 10727052 A EP10727052 A EP 10727052A EP 2424681 A1 EP2424681 A1 EP 2424681A1
Authority
EP
European Patent Office
Prior art keywords
sheet
pocket
bag
polyethylene
bottle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP10727052A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jean-Philippe Taberlet
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.)
Lablabo SA
Original Assignee
Lablabo SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lablabo SA filed Critical Lablabo SA
Publication of EP2424681A1 publication Critical patent/EP2424681A1/fr
Ceased legal-status Critical Current

Links

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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/48—Enclosing articles, or quantities of material, by folding a wrapper, e.g. a pocketed wrapper, and securing its opposed free margins to enclose contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B65D83/0072—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by a piston or a movable bottom or partition provided in the container or the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5071—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and being composed by one single element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/5085—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and comprising grooves, e.g. being E-shaped, H-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/46—Bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/60—Bottles

Definitions

  • the present invention relates to a device for packaging and dispensing fluid products, and more particularly to a flexible pouch for a device for packaging and dispensing fluid, liquid or pasty products of the pocket-bottle type, that is to say comprising a flexible pouch placed in a rigid container and associated with a pump or a valve, to keep the fluid in the flexible pouch safe from air in good conditions, and ensure its distribution out of the pocket by operating the pump or valve.
  • the devices for packaging and dispensing fluids of the pocket-bottle type are well known. These devices generally comprise a rigid-shell container in which is placed a retractable flexible bag, which retracts as the product is extracted.
  • the expulsion of the product out of the bag can be obtained by means of an "airless" pump or without air intake, or under the pressure of a propellant gas acting in the bottle on the wall of the bag.
  • a vent is provided, generally in the bottom or in the neck of the bottle, to allow the outside air to penetrate in the space between the bottle and the bag each actuation of the pump and thus allow the bag to retract, maintaining sufficient pressure on its walls.
  • FIG. 1 Another example of a pocket bottle is described in patent FR 2,827,844 relating to a device comprising a sealed flexible bag placed in a rigid bottle, associated with a pump or a valve, in which the pocket comprises a cylindrical wall consisting of a metal or plastic sheet wound on the edges of two flanges, one of which forms the bottom of the pocket and the other a ring for fixing to the flask and at the pump or valve.
  • WO 97.20757 discloses a method of manufacturing a tubular plastic bag for an aerosol, the opening is welded to a ring while the other end is folded and sealed to form the bottom of the bag.
  • the products contained in the bags are often sensitive to oxidation by the action of oxygen in the air and can degrade if air is introduced into the bag due to a lack of sealing. Sealing defects are most often found at the junction of the pocket and the pump. They can also result from a certain porosity of the materials used for the realization of the pocket.
  • the pocket wall of the known devices can form folds by retracting, and these folds may cause tears likely to pass air which then reaches the inside of the pocket, and therefore compromises preserving the integrity of the product contained therein.
  • the folds formed by the wall of the pocket during its retraction generate product retention volumes and thus limit the effectiveness of the distribution thereof.
  • Pouch bottles are commonly manufactured by extrusion or injection of plastics.
  • the bottle can be made by stamping in the case of a wall metal such as aluminum, or by injection or injection blow in the case of a plastic wall, while the flexible bag is generally manufactured by injection blow molding or extrusion blow molding of polyethylene or polypropylene in a suitable mold.
  • the bags can also be made of aluminum sheets or multilayer plastic / aluminum type have good sealing qualities of their wall, as in the patent FR 2,827,844 supra.
  • the pockets of this type are made in the form of superimposed sheets, welded by their edge, adapting to a collar or a rigid ring.
  • the manufacture of such pockets is relatively simple, but it has the disadvantage that the junction area of the two opposite edges of the sheet to form the cylinder has an extra thickness.
  • this extra thickness reveals the thickness of the layer forming the sheet, and the risk of migration of traces of compounds contained in the layer to the product introduced into the bag is not negligible in this unprotected area, especially in the case of a multilayer film comprising a metal layer.
  • 5,248,063 discloses a laminated pouch formed from a multilayer sheet whose edge is covered with a plastic film to prevent delamination of the sheet.
  • a technique for applying a ribbon to the contiguous edges of a sheet wound in a cylinder is described in US Patents 3,066,063 and DE 1729018.
  • the present invention specifically relates to a device for packaging and dispensing fluid product of the pocket-bottle type with good security vis-à-vis the risk of contamination of the products in the pocket.
  • the subject of the invention is also a process for the manufacture of a pocket bottle which can use simple or complex materials according to the intended use, easily recyclable, using minimum quantities of material, for the bottle and for the bag and having a excellent mechanical strength, more particularly excellent impact resistance.
  • the fluid product conditioning and dispensing device is of the type comprising a sealed flexible bag placed in a rigid bottle, associated with a pump or a valve, the bag comprising a cylindrical wall formed by at least one rolled sheet according to a cylinder of which one of the lateral edges is sealingly attached to a solid flange forming the bottom of the bag, and the other is sealingly attached to an annular flange forming a ring for fixing to the bottle, and it is distinguished in particular in that the two longitudinal edges of the sheet are fixed to one another in a sealed manner and the edge of the inner edge is masked by a flexible strip of cover.
  • the cover strip is fixed on each of the two longitudinal edges of the sheet, on either side of their junction on the inner wall of the sheet.
  • the cover strip wraps around the edge of the inner edge of the sheet and folds between the two edges. It is then welded together with the edges of the sheet during the formation of the cylindrical tube.
  • the width of the cover strip varies according to the dimensions of the pocket, but it is generally between 2 and 10 mm, and preferably between 4 and 6 mm.
  • the sheet used to form the wall of the bag may consist of various simple or complex materials, depending on the intended use. Its thickness can vary from approximately 20 ⁇ m to 250 ⁇ m and is preferably between 50 ⁇ m and 150 ⁇ m to ensure the best operating conditions, in particular easy retraction of the bag into the bottle as it becomes available. empty, so as to provide an excellent refund rate, greater than 90%. These values may vary depending on the materials used.
  • the sheet, monolayer or multilayer is fixed by its edges to the periphery of each flange, and closed along a generatrix of the cylinder.
  • the cylindrical pocket comprises a multilayer complex combining several metal films, or a metal sheet coated with a plastic film on at least one of its faces.
  • This multilayer complex is wound on two flanges which can be for example metal or plastic.
  • a particularly advantageous embodiment comprises an aluminum foil interposed between at least two plastic films.
  • Plastic films of multilayer complexes can be selected from polyethylene, polypropylene, polyamide, etc.
  • the multilayer sheet is fixed by its edges to the periphery of each flange, and closed along a generatrix of the cylinder.
  • the multilayer film is a plastic / barrier polymer / plastic material complex, and for example an EVOH film interposed between two polyethylene or polypropylene films.
  • EVOH is an ethylene vinyl alcohol polymer with good gas barrier properties, especially oxygen and water vapor.
  • the complex may also comprise four layers, polyethylene / polyamide / aluminum / polyethylene terephthalate, or polyethylene / polyethylene terephthalate / aluminum / polyethylene.
  • This last multilayer structure has the advantage of facilitating edge-to-edge fixing after winding the sheet, by bonding or by welding, since the inner part of one edge of the sheet is applied to the outer part of the other edge, which is in the same material.
  • Such multilayer composite coating is particularly useful when a tight seal is essential, or when the nature of the product in the pocket requires.
  • an aluminum foil wound on two metal or plastic flanges may be used, two opposite edges of the sheet being welded to one another along a generatrix of the cylinder.
  • a cover strip is placed on the inner face of the sheet forming a tube, on the junction of the two edges, as indicated above.
  • the covering strip is preferably made of a material identical to that constituting the inner layer of the sheet.
  • the cover strip has substantially the same thickness as the inner layer of the sheet.
  • a flexible paperboard sheet or a polymer / paper / polymer complex preferably polyethylene / paper / polyethylene
  • This type of material has the advantage of being much more easily recyclable than PE / PET / aluminum / PE multilayers used in the technical field.
  • the metal sheet, or the multilayer sheet is fixed on the periphery of each of the two flanges, preferably by gluing or welding, depending on the nature of the material used for the flanges.
  • the method of the invention consists firstly in cutting the sheet to the desired size, in welding the two opposite edges of the sheet, from the inside to the outside to form an open tubular pocket which is then fixed through its openings on the flanges, then the bag is introduced into the rigid bottle where it is held by the annular flange forming a ring. Then the cover strip is cut and welded on the sheet, inner side. The sheet is then wound on itself, keeping the cover strip on the inside, and taking care that it covers the contact area between the ends. The welding is then carried out, and a welded tube is obtained, with continuity of the inner zone.
  • the attachment of the edges to one another, then to the flanges can be performed by conventional welding techniques, for example ultrasonic welding, impulse, friction, or heat.
  • the thermal welding technique is more suitable for the materials used for form the wall of the pocket. Fixing can also be done by gluing but only if the products that the bag is intended to contain do not risk any adverse effect resulting from possible contamination by the glue components.
  • the sheet initially has a flattened shape, requiring the use of appropriate tools to shape it and then introduce the product.
  • the operations of filling the bag used in the invention do not require first to empty the bag before proceeding to a partial filling, then to operate in a final step under neutral gas, unlike most known pockets of the technique.
  • One of the advantages of the process of the invention is that it makes it possible to obtain pockets of relatively large volumes (more than 150 ml for example) of perfectly cylindrical shape because of the welding mode.
  • the method according to the present invention has the particular advantage of allowing the manufacture of pouches whose volume is easily adapted to that of the bottle and the amount of product that must be introduced into the bag.
  • This is particularly advantageous industrially since conventional techniques, because of their cost, involve limiting the range of bottles to a few models of predetermined dimensions, and for example it is commonly proposed rigid bottles whose volume is 30, 60 or 90 ml and therefore a bag whose content is 65 ml, for example, can be introduced into a 90 ml bottle, resulting in a large dead volume between the bag and the bottle.
  • the volume of the bag can be easily adapted to that of the bottle by simply adjusting the height and diameter of the cylinders constituting the bag and the bottle, it is possible to reduce the dead volumes.
  • the drop drop tests carried out on the basis of ASTM D 6344-4, showed a significant improvement in impact resistance while the presence of the lap introduces an asymmetry that can damage resistance.
  • the zone of weakness is located on the welding of the two edges to each other and this fragility is even greater than the welding is longer. It is known that the thickness has little influence on the resistance, unlike the length of the weld.
  • the test consists of dropping vertically oriented pocket flasks at a height of 0.6 m to 4 m.
  • Each pocket consists of a multilayer sheet fixed by gluing on two flanges as indicated above.
  • the layers, from the outer layer to the inner layer, are polyethylene / polyethylene terephthalate / aluminum / polyethylene.
  • the thickness of the polyethylene layers is 50 ⁇ m and that of the aluminum and polyethylene terephthalate layers is 12 ⁇ m.
  • the bags according to the invention comprise a polyethylene strip of 100 .mu.m thick.
  • the pockets cylindrical in shape and with a capacity of 100 ml, are filled with water. They are put in place in a rigid polyethylene bottle, the assembly of the bag in the bottle is done by the upper annular ring of the bag, as shown in Figure 4, and a standard pump is snapped onto the neck of the pocket.
  • the weight of each pocket bottle thus mounted is about 150 g.
  • the fall is guided by means of a vertical tube of diameter slightly greater than that of the flasks to maintain their orientation and ensure the regularity of the shock conditions on a hard surface.
  • the orientation of the vial pockets is such that the bottom of the bottle hits the ground first.
  • the tests are made on 3 sets of 20 vials. All the vials have the same size (bottle height: 137 mm, diameter: 42 mm).
  • the first series includes standard pockets with externally folded edges welded internal face to internal face.
  • the second series includes welded edge pockets one on the other, internal face against external face.
  • the third series comprises the pockets according to the present invention.
  • the first test is performed by dropping the bottle from a height of 0.60 m. Flasks resistant to the first test are then subjected to a second test at 1.2 m. Those who resist are then subjected to a third test at 2.0 m, then at 3.3 m and finally at 4.0 m if they resisted the previous tests.
  • Each vial is tested three times at each height.
  • the table shows the number of failures. Thus, all the vials resisted the first test (no failure). In the 1st series (standard pocket) none of the 20 vials withstood the 2.0 m drop. The second-series pocket-bottles withstood 3.3 m but 6/20 did not resist 4.0 m. On the other hand, all the bottle-flasks of the 3rd series (invention) withstood at 4.0 m. There is therefore an improvement in the impact resistance despite the presence of an additional weld.
  • a burst strength measurement test has shown that the pockets according to the invention have a better resistance than the bags made according to conventional techniques.
  • the bursting strength of a multilayer sheet bag identical to that used in the above test is 3.1 bar (3.1 ⁇ 10 5 Pa) whereas that of a standard pocket with folded edge to the outside and welded internal face against internal face is only 1.9 bars (1.9 10 5 Pa) under the same conditions.
  • Figure 1 is a perspective view of a rolled sheet to form a tubular pocket according to a known technique.
  • Figure 2 is a perspective view of a sheet according to the technique of the present invention, with a cover strip on the inner face of the tube.
  • Figure 3 is a perspective view of a variant of the invention where the cover strip is on both sides of the inner edge of the sheet.
  • Figure 4 an exploded view of a pocket bottle whose bottle contains the complete bag comprising the tube of Figure 2 with the two flanges.
  • Figure 1 shows a sheet (1) consisting of an aluminum foil (2) covered on each of its two faces by a layer of polyethylene.
  • the sheet comprises an outer polyethylene film (3) and an inner polyethylene film (4).
  • the sheet (1) wound its two ends are superimposed at the area (5), the inner face near the edge being placed on the outer face close to the other edge.
  • the width of the superposition area of the two edges of the sheet is about 5 mm. The two edges are attached to each other by
  • the width of the sheet is variable and corresponds to the height of the bag, once the tube formed and placed on the flanges.
  • Figure 2 clearly shows the polyethylene strip (6) placed on the inner face of the sheet (1).
  • This band (6) with a width of about 6 mm, covers the overlap of the two edges over the entire width of the sheet (1) and masks the apparent edge of the inner edge.
  • the identity of the material constituting the covering strip (6) and the inner layer on the one hand, and the outer layer of the sheet on the other hand, facilitates the attachment by welding the two edges one over the other , and the cover strip of thickness usually between 50 and 150 microns, on the junction edges. Thermal welding is preferably carried out.
  • the same material in this example polyethylene, is used on the entire inner surface of the sheet which is then in contact with the product in the pocket. There is therefore no break in the quality of the material forming the inner face of the pocket.
  • the polyethylene cover layer makes it possible to mask the edge of the inner edge of the sheet and to avoid any contact of the aluminum with the product introduced into the pocket, and its small thickness, of the order of 50 to 150 ⁇ m, and preferably about 100 microns, causes only negligible extra thickness.
  • Figure 3 shows an alternative embodiment of the invention wherein the cover strip (6) wraps the edge of the inner edge of the sheet (1).
  • FIG. 4 shows the assembly of the sheet (1), wound in a closed cylinder by the covering strip (6), with the flanges (7, 8) and the insertion of the assembly into the rigid bottle (9). ).
  • the annular flange (7) constitutes a fixing ring to the bottle (9) while the solid plate flange (8) constitutes the bottom of the bag.
  • a pump (not shown) carrying a pusher for its actuation, is mounted in a sealed manner on the neck of the pocket, according to the technique of FR 2,827,844.
  • An air circuit (not shown) is provided, according to a usual technique, in the pump or in the annular flange forming a fixing ring to allow the passage of air from outside to the space between the pocket and the bottle.
  • Means are provided for the air circuit to be opened only when the pocket-bottle is used, for example by a known shut-off system which opens only when pressure is applied to the pusher for actuating the pump. so as to allow only a volume of air equivalent to the volume of fluid expelled from the pocket.
  • the shutter means of the air circuit may be constituted by valves, which remain closed until the pump is actuated.
  • this air circuit can be replaced by a simple vent in the bottom of the bottle. If necessary, this vent may be equipped with a valve and a filter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Laminated Bodies (AREA)
EP10727052A 2009-04-28 2010-04-28 Dispositif de conditionnement et de distribution du type flacon-poche Ceased EP2424681A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0952774A FR2944780B1 (fr) 2009-04-28 2009-04-28 Dispositif de conditionnement et de distribution du type flacon-poche.
PCT/FR2010/050804 WO2010125304A1 (fr) 2009-04-28 2010-04-28 Dispositif de conditionnement et de distribution du type flacon-poche

Publications (1)

Publication Number Publication Date
EP2424681A1 true EP2424681A1 (fr) 2012-03-07

Family

ID=41328539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10727052A Ceased EP2424681A1 (fr) 2009-04-28 2010-04-28 Dispositif de conditionnement et de distribution du type flacon-poche

Country Status (9)

Country Link
US (1) US20120097707A1 (zh)
EP (1) EP2424681A1 (zh)
JP (1) JP2012525304A (zh)
KR (1) KR20120016111A (zh)
CN (1) CN102421534A (zh)
BR (1) BRPI1014523A2 (zh)
CA (1) CA2757035A1 (zh)
FR (1) FR2944780B1 (zh)
WO (1) WO2010125304A1 (zh)

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WO2011055386A1 (en) * 2009-11-04 2011-05-12 Ashok Chaturvedi Method of manufacturing a flexible packaging tube from flexible film or multilayer laminate
EP2674368A1 (fr) * 2012-06-15 2013-12-18 Aisapack Holding SA Corps tubulaire d'emballage soudé bout à bout
US9266133B2 (en) * 2012-06-22 2016-02-23 L&F Innoventions, LLC Spray bottles with flexible body portions and soft refill containers
FR3008078B1 (fr) * 2013-07-08 2016-04-01 Lablabo Dispositif a recipient rigide et poche cylindrique souple pour le conditionnement de fluides.
CN105966738B (zh) * 2016-07-14 2018-10-19 诸暨市志缇生物科技有限公司 牙膏转移用牙膏管连接装置
EP3936457A1 (en) 2016-12-22 2022-01-12 Unilever IP Holdings B.V. A fitment for combining with a closure
CN113942237B (zh) * 2021-10-19 2023-10-13 奥克兰医疗科技(四川)有限公司 一种医用驱血器的热合加工方法

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Also Published As

Publication number Publication date
JP2012525304A (ja) 2012-10-22
FR2944780A1 (fr) 2010-10-29
US20120097707A1 (en) 2012-04-26
CN102421534A (zh) 2012-04-18
CA2757035A1 (fr) 2010-11-04
FR2944780B1 (fr) 2011-06-10
BRPI1014523A2 (pt) 2016-04-05
WO2010125304A1 (fr) 2010-11-04
KR20120016111A (ko) 2012-02-22

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