EP2007568A1 - Durch eine stumpfverschweis' ste folie gebildete verpackung - Google Patents

Durch eine stumpfverschweis' ste folie gebildete verpackung

Info

Publication number
EP2007568A1
EP2007568A1 EP07735419A EP07735419A EP2007568A1 EP 2007568 A1 EP2007568 A1 EP 2007568A1 EP 07735419 A EP07735419 A EP 07735419A EP 07735419 A EP07735419 A EP 07735419A EP 2007568 A1 EP2007568 A1 EP 2007568A1
Authority
EP
European Patent Office
Prior art keywords
strip
laminate
welded
layer
tube
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.)
Withdrawn
Application number
EP07735419A
Other languages
English (en)
French (fr)
Inventor
Jacques Thomasset
Stéphane MATHIEU
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.)
Aisapack Holding SA
Original Assignee
Aisapack Holding 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
Priority claimed from EP06118170A external-priority patent/EP1884348A1/de
Priority claimed from EP06118199A external-priority patent/EP1884349A1/de
Application filed by Aisapack Holding SA filed Critical Aisapack Holding SA
Priority to EP07735419A priority Critical patent/EP2007568A1/de
Publication of EP2007568A1 publication Critical patent/EP2007568A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32B27/08—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 synthetic resin
    • 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
    • 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
    • B29C65/5007—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 characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5021—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 characterised by the structure of said adhesive tape, threads or the like being multi-layered
    • 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
    • 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
    • B29C65/505—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 and placed in a recess formed in the parts to be joined, e.g. in order to obtain a continuous surface
    • 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
    • B29C66/01—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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/7232—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 comprising a non-plastics layer
    • B29C66/72321—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 comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • B29C66/73116—Melting point of different melting point, i.e. the melting point of one of the parts to be joined being different from the melting point of the other part
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • B29C66/73713—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented bi-axially or multi-axially
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • 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
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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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    • 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
    • B32B3/08—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 characterised by added members at particular parts
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    • B32—LAYERED PRODUCTS
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    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
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    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/14—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with linings or inserts
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B29C65/4805—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
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/485—Multi-component adhesives, i.e. chemically curing as a result of the mixing of said multi-components
    • 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
    • B29C66/01—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
    • B29C66/70—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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0633—LDPE, i.e. low density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/065—HDPE, i.e. high density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/02—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/005—Oriented
    • B29K2995/0053—Oriented bi-axially
    • 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
    • B29L2009/00—Layered products
    • 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
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • 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

Definitions

  • the invention lies in the field of flexible tubes formed by means of plastic films. It relates more specifically to a flexible tube whose ends are welded end to end.
  • the most common welding method consists of forming an overlap of the ends of the laminate and assembling the inner face on the upper face of the laminate.
  • This assembly has many advantages because it allows in particular to obtain a high resistance of the welded zone, to ensure the hygiene properties vis-à-vis the packaged product and ensure good barrier and sealing properties.
  • this assembly may be insufficient for the packaging of aggressive products that migrate into the welded zone and lead to the delamination of the laminate.
  • This assembly does not allow a decoration of the tube on its entire periphery. It finally has the disadvantage of forming an extra thickness in the welded zone.
  • the laminate 2 comprises a first layer 5 of high density polyethylene (HDPE) in contact with the packaged product, an aluminum layer 4 and a second layer 3 of HDPE on the outer surface.
  • the laminate 2 also comprises a layer of polyethylene imine (PEI) and a layer of ethylene acrylic acid copolymer (EAA) between the layers 5 and 4 and a layer of EAA between the layers 4 and 3 to ensure good adhesion between the layers 3, 4 and 5.
  • PEI polyethylene imine
  • EAA ethylene acrylic acid copolymer
  • the ends of the laminate 2 form an overlap in the welded zone 6.
  • the HDPE strip 7 is welded to the inner face of assembly 1 and is inside the tube.
  • the band 7 makes it possible to slow the diffusion of the cyanoacrylates in the welded zone and avoids the problems of delamination.
  • US Pat. No. 4,733,800 proposes the use of a band welded inside a plastic tube in order to suppress the elastic return effect of the package when it is compressed in order to extract the product.
  • This elastic return also called "dead fold" by the skilled person brings air into the package as it empties, resulting in accelerated oxidation of the packaged product.
  • patent US4733800 proposes the use of a band welded inside the tube and comprising a metal layer.
  • Figure 2 illustrates the invention described in US4733800.
  • the tube is formed by the assembly 1 of a laminate 2 welded end to end.
  • Said laminate 2 comprises at least one metal layer 4 with a thickness of between 5 and 40 microns and a welding layer 5.
  • the strip 7 welded on the inner face of the assembly 1 is superimposed on the ends of the laminate 2 at the butt welding zone 6.
  • the strip 7 located inside the tube comprises at least one metal layer of thickness of between 40 and 200 microns and two welding layers 8 and 10. Said strip 7 prevents the elastic return of the tube during the extraction of the product, and reinforces the welded zone due to the thickness of the layer
  • a first disadvantage lies in the fact that the metal layer 9 is in direct contact with the packaged product which creates problems when the product is food.
  • a second disadvantage is related to the large thickness of the strip which makes it difficult or impossible to assemble the tube head on the tubular body.
  • the patent application JP06166107 proposes the use of a welded strip inside the tube in order to overcome the drawbacks of butt welding. end of the laminate ends.
  • the patent application JP06166107 proposes in particular to avoid the contact of the barrier layers with the packaged product by positioning the ends of the laminate end to end and by welding a strip which connects said ends.
  • a tube is formed of the assembly 1 of a laminate 2 whose ends are positioned end to end. The ends 6 are not welded together; they are connected via the strip 7 welded to the underside of the laminate.
  • the strip may comprise several layers and the welded layer is identical in nature to the lower layer 5 of the laminate.
  • the invention described in the patent application JP06166107 is useful for associating non-welding laminates end to end.
  • a first disadvantage is of aesthetic order because the outer surface of the tube has a break at the level of the end-to-end assembly zone 6.
  • a second disadvantage is related to the extra thickness created by the inner band which makes it difficult to assemble the tube head on the tubular body.
  • the information included in this patent does not make it possible to effectively reinforce the resistance of the welded zone. As a result, the teaching of the aforementioned patent application can be applied only very restrictively to reinforce the welded zone.
  • the tubes undergo many stresses, especially in the welded zones.
  • stresses there may be mentioned those which are repeated in flexion - traction of the welded zone during the extraction of the product; the bending stresses created by the formation of folds during the welding of the end of the tube and during the extraction of the product.
  • the bending strength of the welded zone is particularly critical and difficult to achieve with butt welding.
  • the welded zone is also subjected to traction shock during an impact corresponding, for example, to the fall of the tube from a height of 1 m. It has been observed that a tube formed by butt welding the ends of the laminate has a lower weld zone resistance than the laminate.
  • Laminated multilayer film resulting from the complexing of several films
  • BOPET bi-oriented polyethylene terephthalate
  • BOPP bi-oriented polypropylene
  • BOPA bi-oriented polyamide
  • PE polyethylene
  • LLDPE linear low density polyethylene
  • HDPE high density polyethylene
  • EVOH ethylene vinyl alcohol
  • Adhesive glue used when making laminates to combine several films
  • Glue adhesive product used to glue the strip to the laminate
  • welding the welding operation amounts to assembling by melting two materials of the same nature or miscible in the molten state, said miscibility being manifested by the diffusion and interpenetration of the chains Molecular and then cooling said materials to freeze the state of molecular interpenetration.
  • Bonding As opposed to welding, bonding is defined as an assembly operation of two materials that are not of the same kind or immiscible in the molten state. Bonding can involve chemical mechanisms (reaction of chain ends, crosslinking), physical mechanisms (Van der Waal forces, evaporation). Bonding is an assembly operation that can be performed at room temperature or by heating the materials.
  • the invention consists of a plastic tubular package comprising a tube head assembled on a tubular body formed of a laminate whose ends are welded to one another and covered by a strip, said laminate being composed of at least a welding layer and a non-welding layer, characterized in that the strip comprises a layer of bi-oriented polymer and a layer for fixing the strip on the laminate, the tensile rigidity of the strip being also greater than or equal to the rigidity of the non-welding layer.
  • the thickness of the strip can be significantly reduced.
  • the invention is particularly applicable to the butt welding of a laminate composed of several layers including at least one functional layer (eg barrier) and a welding layer, said functional layer being at best partially welded.
  • at least one functional layer eg barrier
  • a welding layer said functional layer being at best partially welded.
  • the invention allows the production of high strength tubes and improved aesthetics.
  • the invention makes it possible to obtain a tube whose butt welded zone is at least as strong as the laminate. Jointly, the aesthetics of the tube is improved because the tube has an extra thickness negligible in the welded zone and has the possibility to be decorated on its entire circumference without interruption in the welded zone.
  • the invention improves the welding of the tube head to the tubular body.
  • the strip is welded or glued to the upper surface of the laminate.
  • the band is transparent.
  • the thickness of the strip is between 12 microns and 80 microns and preferably between 12 and 50 microns.
  • the width of the strip is between 3 and 15 mm; preferably between 4 and 6 mm when the strip is welded; and preferably between 6 and 15 mm when the tape is glued.
  • FIGS 1 to 3 describe the main uses of a welding strip known in the prior art for connecting the welded ends of a laminate.
  • Figure 1 illustrates the use of a band to limit the migration of aggressive components contained in the package.
  • Figure 2 illustrates the use of a band for the elastic return effect of the tube when compressed to extract the product.
  • FIG. 3 illustrates the use of a band welded inside the tube in order to overcome the drawbacks of the welding by covering the ends of the laminate.
  • Figures 4 and 5 illustrate band structures according to the invention and their use for making tubes.
  • Figure 4 shows a first embodiment of the invention to use a strip having a bi-oriented layer and bonded to the outer surface of the package.
  • FIG. 5 shows a second embodiment of the invention of using a strip comprising a bi-oriented layer and bonded to the inner surface of the package.
  • a web containing at least one bi-oriented polymer layer has a great advantage.
  • a strip consisting solely of a bi-oriented PET film of 12 microns, a polyethylene film of 20 microns and a layer of adhesive of 2 microns connecting the two films, confers the butt welded tube has sufficient strength while the thickness of said strip is about 5 to 10 times less than that of the laminate.
  • Said strip is welded to the outer face of the package and connects the ends welded end to end of the laminate.
  • Said strip was welded to the butt welded ends of a 275 micron thick laminate and containing a 20 micron aluminum layer trapped between the polyethylene layers.
  • the butt welding zone of the laminate has a double weakness; the former being related to the discontinuity of the aluminum layer and the second to the weak resistance of the PE layers welded end to end.
  • the welding on the outer face of the tube of the aforementioned strip comprising a bi-oriented PET layer gives unexpected resistance to the welded zone while the thickness of the strip is 8 times lower than that of the laminate.
  • no breakage or weakness is observed in the welded zone.
  • bursting of the tube is observed by rupture of the laminate outside the welded zone.
  • the thin strip has a high transparency and is hardly visible on the surface external of the packaging. The aesthetics of the packaging is not penalized by the presence of the band on the outer surface.
  • FIG. 4 illustrates a first embodiment of the invention which consists in adding a strip 7 to the outer surface of a package 1 formed of a laminate 2 welded end to end.
  • the strip 7 comprises at least one bi-oriented polymer layer 9 and a second layer 8 for bonding said strip 7 to the ends of the laminate.
  • the layer 8 is identical in nature to the layer 3 of the laminate.
  • the layer 8 is based on polyolefin to allow high speed welding production.
  • the laminate 1 has several layers, generally at least one does not weld end to end because of its properties or because of its small thickness.
  • FIG. 4 shows a laminate 2 comprising a non-sealing layer 4 trapped between layers 3 and 5.
  • the strip 7 has a stiffness and a resistance greater than or equal to the rigidity and the strength of the non-sealing layer 4.
  • At least the layer 5 is butt welding to ensure continuity of the inner wall of the package at the welded area, and to ensure packaging hygiene properties vis-à-vis the packaged product.
  • the ends of the upper layer 3 of the laminate are connected by welding layer 8 of the strip.
  • the strip 7 can be applied by gluing on the outer layer 3 of the laminate 2.
  • the layer 8 of said strip 7 is an adhesive.
  • An adhesive tape is particularly advantageous when the tape is applied directly to a printed surface having inks or varnishes.
  • the width of the glued strip is preferably greater than or equal to 6 mm so that the adhesive force is sufficiently high to withstand the tensile and flexural stresses generated by the use of the tube and avoid delamination.
  • the upper layer of the laminate is not necessarily welding, which allows a large choice of resins.
  • the upper layer 3 may be for example PET, PA or PP.
  • An upper layer 3 of PET, PP or PA has great advantages when used as a printing medium. Indeed, because of its high melting temperature relative to the welding layers, the layer 3 is not damaged during the welding operation. This results in improved decoration and optical properties of the packaging in the welding zone.
  • Transparent bands make it possible to obtain decorated tubes around the circumference.
  • the first embodiment of the invention makes it possible to obtain packaging whose visual quality is improved.
  • Tapes containing a layer of BOPET or BOPP are particularly advantageous because they have a high transparency. It is advantageous to use a bonded or welded band of thin thickness and transparent so that the assembly area is invisible.
  • the invention allows the manufacture of tubes having an uninterrupted decoration at the assembly area. When the strip is welded to the outer surface of the laminate, the decoration is preferably trapped between the layers of the laminate; while when the tape is glued the decoration can be indifferently surface or imprisoned.
  • the invention illustrated in FIG. 4 makes it possible to obtain tubes having an excess thickness at the welded zone of less than 25% and preferably less than or equal to 20%.
  • the strip 7 is connected to the lower surface of the laminate 2 forming the inner surface of the package.
  • the strip 7 comprises at least one bi-oriented layer 9 trapped between two welding layers 8 and 10.
  • the welding layers 8 and 10 are generally of the same nature as the layer 5 forming the inner layer packaging; and the sealing layers 8 and 10 are preferably polyolefin layers. PE solder layers 8 and 10 are particularly advantageous because they allow high speed welding of production.
  • the thickness of the strip 7 illustrated in FIG. 5 is advantageously less than a quarter of the thickness of the laminate 2, which makes it possible to avoid leaks in the welding of the tube head on the tubular body.
  • the strip 7 is composed of a layer 9 made of BOPET with a thickness of 12 microns and layers 8 and 10 made of LDPE with a thickness of 20 microns.
  • the layers 8, 9 and 10 are bonded together by 2 micron adhesive layers.
  • the total thickness of the strip is less than 60 microns.
  • the strip 7 is welded to the ends of the inner layer 5 of the laminate 2.
  • the laminate 2 comprises an inner layer 5 of LDPE with a thickness of 240 microns and a layer 6 of bi-oriented polypropylene (BOPP) with a thickness of 10 microns. Layer 6 is not welded end to end.
  • BOPP bi-oriented polypropylene
  • the invention illustrated by FIGS. 4 and 5 is particularly advantageous for assembling a laminate consisting of a functional layer and a welding layer end-to-end, said functional layer being at best partially welded; the strip connecting the ends of the laminate to compensate for the loss of resistance at the welded zone.
  • the strength of the band is such that it compensates for the fragility of the butt welded area.
  • the tube obtained according to the invention illustrated by FIGS. 5 and 6 has a resistance at the weld zone greater than or equal to the strength of the laminate. It is observed for example a rupture of the tube next to the welded zone during a burst test, an excellent resistance of the welded zone during a repeated stressing in flexural tension, a very good resistance to bending of the welded zone.
  • FIGS. 4 and 5 are advantageous for end-to-end connection of laminates comprising layers whose melting temperature difference is greater than 20 ° C.
  • the assembly of these films according to the preferred embodiment consists in heating said laminated at a temperature close to the melting temperature of the welding layer, and reinforcing the ends of said laminate by means of a strip comprising at least one bi-oriented polymer layer.
  • a strip comprising a bi-oriented polymer layer is particularly advantageous because the bi-oriented layer retains its properties even if it is heated and cooled in the tube-making process.
  • the strip may be welded or glued to the top or bottom surface of the laminate.
  • Many glues and bonding methods can be considered.
  • a first method consists in reporting a strip on which the glue has been previously applied.
  • a first variant of this method is the adhesive tape applicable at room temperature
  • a second variant is an adhesive tape that is glued on heating.
  • the use of an adhesive tape leads to a process that is easy to control and easily indestructible.
  • Another method is to apply the glue on the tape or on the film at the time of assembly.
  • the use of two-component reactive glues provides high levels of adhesion.
  • the bonding operation does not require special treatment of the surface of the assembled area, however it is possible to make surface treatments before bonding (corona treatment for example).
  • Another embodiment of the invention consists of a strip having high oxygen or aroma barrier properties and containing at least one bi-oriented polymer layer.
  • the barrier properties can be provided by an additional layer of barrier polymer such as ethylene vinyl alcohol (EVOH) or by a plasma-deposited coating on the bi-oriented layer (Siox coating for example).
  • the thickness and the choice of the bi-oriented polymer layer in the strip depends on the non-welded end-to-end layers of the laminate. It has been found that the bi-oriented layer of the strip should have a tensile strength and rigidity at least equal to that of the non-welded end-to-end laminate layers.
  • the layers are listed from the outer surface of the package to the inner surface of the package.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Wrappers (AREA)
  • Tubes (AREA)
EP07735419A 2006-04-06 2007-04-06 Durch eine stumpfverschweis' ste folie gebildete verpackung Withdrawn EP2007568A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07735419A EP2007568A1 (de) 2006-04-06 2007-04-06 Durch eine stumpfverschweis' ste folie gebildete verpackung

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
IB2006051052 2006-04-06
EP06118170A EP1884348A1 (de) 2006-07-31 2006-07-31 Kombiniertes Schweiss- und Klebeverfahren zur Herstellung von Verpackungen und danach hergestellte Verpackung
EP06118199A EP1884349A1 (de) 2006-07-31 2006-07-31 Behälter aus stoßgeschweisster mehrlagiger Folie
IB2006054420 2006-11-24
EP07735419A EP2007568A1 (de) 2006-04-06 2007-04-06 Durch eine stumpfverschweis' ste folie gebildete verpackung
PCT/IB2007/051250 WO2007113783A1 (fr) 2006-04-06 2007-04-06 Emballage forme d' un film a plusieurs couches soude bout a bout

Publications (1)

Publication Number Publication Date
EP2007568A1 true EP2007568A1 (de) 2008-12-31

Family

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EP07735419A Withdrawn EP2007568A1 (de) 2006-04-06 2007-04-06 Durch eine stumpfverschweis' ste folie gebildete verpackung

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EP (1) EP2007568A1 (de)
KR (1) KR101419695B1 (de)
WO (1) WO2007113783A1 (de)

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DE102011055728A1 (de) * 2011-06-06 2012-12-06 Linhardt Gmbh & Co. Kg Verfahren zum Herstellen von Packmitteln
EP3606739B1 (de) 2017-04-05 2024-01-03 Kimpai Lamitube Co., Ltd. Rohrförmiger behälter mit unsichtbarer länglicher überlappender seitennaht
KR102072128B1 (ko) 2018-09-11 2020-01-31 (주)거성피엔피 포장용 튜브 용기 본체

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Publication number Priority date Publication date Assignee Title
JPS5616063B2 (de) * 1972-09-27 1981-04-14
JPS60101028A (ja) * 1983-11-09 1985-06-05 Dainippon Printing Co Ltd 積層シ−トの接合方法
SE445031B (sv) * 1984-10-02 1986-05-26 Akerlund & Rausing Ab Forpackningstub samt forfarande och anordning for tillverkning derav
JPH08324599A (ja) * 1995-03-27 1996-12-10 Dainippon Printing Co Ltd ラミネートチューブ
WO2005095105A1 (de) * 2004-03-15 2005-10-13 Ccl Label Gmbh Verbundfolie für einen behälter, insbesondere eine tube

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Title
See references of WO2007113783A1 *

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KR101419695B1 (ko) 2014-07-17
WO2007113783A1 (fr) 2007-10-11

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