EP2043839A2 - Durch blasformung hergestellte vorform für einen behälter - Google Patents

Durch blasformung hergestellte vorform für einen behälter

Info

Publication number
EP2043839A2
EP2043839A2 EP07825904A EP07825904A EP2043839A2 EP 2043839 A2 EP2043839 A2 EP 2043839A2 EP 07825904 A EP07825904 A EP 07825904A EP 07825904 A EP07825904 A EP 07825904A EP 2043839 A2 EP2043839 A2 EP 2043839A2
Authority
EP
European Patent Office
Prior art keywords
preform
side wall
blowing
thickness
less
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Withdrawn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
EP07825904A
Other languages
English (en)
French (fr)
Inventor
Jacques Thomasset
Hugues-Vincent Roy
Joachim Pellissier
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
Application filed by Aisapack Holding SA filed Critical Aisapack Holding SA
Priority to EP07825904A priority Critical patent/EP2043839A2/de
Publication of EP2043839A2 publication Critical patent/EP2043839A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/04—Making preforms by assembling preformed material
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B29C49/0411—Means for defining the wall or layer thickness
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/0685—Compression blow-moulding
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06905—Using combined techniques for making the preform
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C2049/7879—Stretching, e.g. stretch rod
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B29C2949/0722—Preforms or parisons characterised by their configuration having variable wall thickness at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B29C2949/0723—Preforms or parisons characterised by their configuration having variable wall thickness at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0731—Preforms or parisons characterised by their configuration having variable diameter at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0761—Preforms or parisons characterised by their configuration characterised by the shape characterised by overall the shape
    • B29C2949/0764—Elliptic or oval cross-section shape
    • 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
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    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/078—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the bottom
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
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    • B29C2949/08—Preforms made of several individual parts, e.g. by welding or gluing parts together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/00—Indexing scheme relating to blow-moulding
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    • B29C2949/079—Auxiliary parts or inserts
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    • B29C2949/0801—Finish neck ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/0817—Wall thickness of the body
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
    • B29C2949/303—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components having more than three components
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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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
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    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
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    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • B29C66/5432—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles joining hollow covers and hollow bottoms to open ends of container bodies
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    • 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
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    • 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
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    • 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
    • B29C66/7234—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 barrier layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/004—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore making articles by joining parts moulded in separate cavities, said parts being in said separate cavities during said joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00—Articles provided with screw threads
    • 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
    • B29L2031/7158—Bottles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]

Definitions

  • the present invention is in the field of plastic containers made by blowing into a mold of a preform.
  • the invention relates to a preform and its embodiment for producing containers by stretch blow molding in a mold. It also relates to packaging obtained by blowing such preforms.
  • the invention makes it possible to use a large variety of resins and makes it possible to obtain containers with a very thin wall.
  • the present invention is particularly intended, but not exclusively, for the following uses:
  • preform In the plastic packaging industry made by blowing a preform, it is conventional to injection mold a preform, said preform comprising a neck, a side wall and a bottom.
  • This preform has many advantages: it can be monolayer or multilayer, it can be manufactured at a high speed in a multi-cavity mold, it allows a wide variety of packaging geometry.
  • the container obtained by blowing said preform comprises three distinct parts, namely an upper part comprising a neck, a bottom on which the container rests, and side walls connecting the neck to the bottom.
  • the neck allows the function of opening - closing the container while ensuring sealing.
  • the neck generally contains means for handling the preform or the blown container, said means being used during the blowing of the preform, as well as during filling of the container.
  • the various functions of the neck, such as sealing, opening and closing, require a high precision of its geometry.
  • Japanese patent application JP 62-051423A discloses preforms which can be made up of at least two distinct parts, e.g. ex. a bottom and a side wall or an upper part and a side wall.
  • Molding techniques do not allow the joint production of thin side walls and the aforementioned properties at the neck.
  • This difficulty is related in particular to the limits of the injection process and the difficulty of molding thin side walls while obtaining a high accuracy at the neck. It is also linked to the fact that until now, we have systematically sought to obtain a bottom and a side wall of the same thickness.
  • the thermoplastic resin injected into the mold cavity gradually fills the bottom, the side walls and at the end of the neck flow. It is difficult to obtain a very precise neck if the thickness of the side wall is less than that of the neck because the injected resin cools faster at the side walls and prevents a sufficient filling of the neck. It therefore clearly appears that the limits of the thickness of the side walls, which can not be much lower than those of the neck.
  • the patent application WO2005 / 066027 proposes to remedy the aforementioned problem with a preform formed of the assembly of two parts, the first part being the neck and the second part being the cavity formed by the side wall and the bottom.
  • the two parts of the preforms are manufactured independently by injection molding.
  • the invention overcomes the aforementioned problems; it allows in particular to obtain by blowing a preform containers with very thin side walls with a large variety of resin while maintaining a relatively thick bottom.
  • the invention makes it possible to obtain thin packings with a large number of layers, and allows a large combination of multilayer structures.
  • the invention consists in producing a preform in at least three parts, the first part forming the neck, the second part forming the side wall and the last part forming the bottom; the three parts being assembled to form the said preform.
  • the preform according to the invention being characterized in that the thickness of the side wall is less than the thickness of the bottom and the thickness of the upper part.
  • One embodiment of the invention consists in using a preform comprising a decoration, said decoration being generally printed on the surface or in the thickness of the wall of the preform. Generally, only the second part of said preform forming the side wall is decorated by printing.
  • Figures 1 and 2 illustrate a preform in three parts according to the prior art (JP 62-051423A).
  • Figures 3 and 4 show preform geometries corresponding to the invention.
  • Figures 5 and 6 correspond to a preferred embodiment of the invention.
  • Figure 5 shows the preform corresponding to the preferred embodiment, and
  • Figure 6 illustrates the container obtained after blowing.
  • Figure 1 illustrates the embodiment of a preform of the prior art in several parts; namely a neck 2, side walls 3, and a bottom 4.
  • the neck 2 is generally injection molded or compression to obtain a high accuracy of this part of the preform.
  • the sidewalls 3 may be injection molded or compression molded, extruded tubular, or shaped from a welded sheet.
  • the bottom 4 may be injection molded or compression molded or thermoformed.
  • FIG. 2 shows the preform 1 of FIG. 1 obtained by assembling the neck 2, the side walls 3 and the bottom 4. The assembly can be done by welding, by mechanical interlocking of the different parts or by gluing.
  • Figure 3 shows a preform geometry according to the invention obtained by assembly.
  • This preform comprises a neck 2, a side wall 3 and a bottom 4.
  • the inside diameter of the side wall 3 is greater than the diameter of the neck 2, which makes it impossible to achieve this preform by molding, injection or compression.
  • FIG. 4 illustrates another preform geometry having a thin side wall 3 with respect to the neck 2.
  • Figures 3 and 4 illustrate a great advantage of the invention that allows the realization of thin-walled sidewalls preforms with respect to the neck or bottom. These thin-walled preforms make it possible to obtain blown packages with advantageous properties.
  • the invention is particularly advantageous for producing containers with very thin side walls.
  • the invention is particularly advantageous for producing blown containers having high barrier properties, said containers allowing the preservation of sensitive products.
  • the invention is particularly advantageous for producing containers that can be filled at high temperature, said filling temperature being greater than 80 ° C.
  • FIG. 5 illustrates another preferred embodiment of the invention.
  • the preform corresponding to the preferred embodiment is illustrated in FIG. 5.
  • This preform 1 comprises a neck 2, a bottom 4 and a thin side wall 3 connected to each other. at the bottom and the neck.
  • the side walls 3 of the preform have a thickness of less than 400 microns and are manufactured by extrusion.
  • the side wall 3 is welded to the bottom and the neck 2.
  • the invention allows the production of containers with a side wall of thickness less than 0.3 mm and having a draw ratio of less than 5. In the case of a side wall obtained by welding a film on itself , the radial draw ratio is generally less than 2.
  • An example of this thin-walled container is shown in Figure 6.
  • This container may be single-layer or multilayer. It can be made with a wide variety of resin.
  • this packaging may contain polyester resins (PET, PEN), polyolefins (PE, PP), polyamide resins, resins that make it possible to improve the barrier properties (EVOH, PVDC, PAMXD6).
  • This container may also contain metal layers such as an aluminum layer.
  • the invention makes it possible to produce a container whose thickness of the side walls is less than 0.2 mm.
  • the preform for obtaining this container has side walls whose thickness is less than 0.4 mm.
  • the invention offers the advantage of producing blown packages that do not have an axis of symmetry.
  • the invention makes it possible for example to produce square section containers from square section preforms. In the same way containers of oval section can be made from preform of oval section.
  • Another advantage of the invention is the integration of function at the neck or the bottom.
  • the invention allows for example the manufacture of a preform comprising a neck with cap, the neck and the cap being connected by a hinge and forming a single piece.
  • One particularly advantageous embodiment of the invention consists in decorating the preform by printing. During the blowing of the preform, the decoration is deformed in conjunction with the wall, and the final decoration is obtained on blown packaging.
  • the decoration printed on the preform takes into account the deformation of the decoration during the blowing.
  • the method of manufacturing the preforms consists in producing separately the three parts of said preform namely the neck, the bottom and the side walls. These three parts are assembled. According to a preferred embodiment of the invention, these parts are assembled by welding; each of the parts having at least at the location of the assembly a surface layer for joining by welding. The parts can also be assembled by mechanical action (screwing, latching, interlocking, etc.).
  • a neck and a bottom made of PE or PP; said neck and said bottom being welded to the sidewalls having at least one PE or PP layer on the inner surface.
  • the neck and the bottom are advantageously molded by injection or compression.
  • the sidewalls are extruded. It is advantageous to make the side walls from a film welded to itself to form a cylindrical body.
  • the film forming said cylindrical body generally comprises several layers.
  • a particularly advantageous embodiment of the invention consists in using a printed film to form the cylindrical body. Said film can be printed flat, which allows the realization of high quality decor at reduced costs.
  • the decoration may be located on the surface of said film or in the thickness of said film at the interface between two layers.
  • the method of blowing the preform consists in deforming only the side walls; the bottom and the neck are not deformed.
  • the junctions between the different parts of the preform are also protected during blowing so that these junctions are not deformed.
  • the blowing method involves heating the sidewalls of said preform and forming the package by stretching-blowing said preform into a mold.
  • the method of blowing preforms according to the preferred embodiment of the invention optionally comprises a preform heating phase, said heating phase being greatly reduced given the small thickness of the side walls of the preform. Only the side walls of the preforms are heated, the junctions between the side walls and the neck and the bottom are not heated. The preforms are then blown into a mold; only the side walls of said preform deform during blowing.
  • the method of blowing the preform according to the preferred embodiment of the invention consists in not stretching said preform in the mold so that the height of the container produced is equivalent to the height of the preform. The side walls of said preform are therefore deformed radially only. It has been found that it is advantageous to blow these preforms with a deformation rate of less than 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Ceramic Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP07825904A 2006-07-20 2007-07-09 Durch blasformung hergestellte vorform für einen behälter Withdrawn EP2043839A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07825904A EP2043839A2 (de) 2006-07-20 2007-07-09 Durch blasformung hergestellte vorform für einen behälter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20060117557 EP1880824A1 (de) 2006-07-20 2006-07-20 Vorformling zur Herstellung einer Verpackung durch Blasformen, Verfahren zum Blasformen des Vorformlings sowie hergestellte Verpackung
PCT/IB2007/052686 WO2008012708A2 (fr) 2006-07-20 2007-07-09 Preforme pour recipient realise par etirage soufflage
EP07825904A EP2043839A2 (de) 2006-07-20 2007-07-09 Durch blasformung hergestellte vorform für einen behälter

Publications (1)

Publication Number Publication Date
EP2043839A2 true EP2043839A2 (de) 2009-04-08

Family

ID=37517041

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20060117557 Withdrawn EP1880824A1 (de) 2006-07-20 2006-07-20 Vorformling zur Herstellung einer Verpackung durch Blasformen, Verfahren zum Blasformen des Vorformlings sowie hergestellte Verpackung
EP07825904A Withdrawn EP2043839A2 (de) 2006-07-20 2007-07-09 Durch blasformung hergestellte vorform für einen behälter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20060117557 Withdrawn EP1880824A1 (de) 2006-07-20 2006-07-20 Vorformling zur Herstellung einer Verpackung durch Blasformen, Verfahren zum Blasformen des Vorformlings sowie hergestellte Verpackung

Country Status (9)

Country Link
US (1) US20090239012A1 (de)
EP (2) EP1880824A1 (de)
JP (1) JP2009544488A (de)
CN (1) CN101588901A (de)
BR (1) BRPI0714500A2 (de)
CA (1) CA2656731A1 (de)
MX (1) MX2008016389A (de)
RU (1) RU2009105048A (de)
WO (1) WO2008012708A2 (de)

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GB0524789D0 (en) 2005-12-05 2006-01-11 Myerscough Martin Container
CH700650B1 (de) * 2009-03-24 2014-07-15 Ganahl Ag Für Hohlkörpertechnik Verfahren und Vorrichtung zur Herstellung eines Behälters.
DE102010027847B4 (de) * 2010-03-31 2013-11-28 Henkel Ag & Co. Kgaa Verfahren zur Herstellung eines stand- und formstabilen Kunststoffbehälters
SG184900A1 (en) 2010-04-27 2012-11-29 Eurokeg Bv Container for liquids
GB201007788D0 (en) * 2010-05-10 2010-06-23 Greenbottle Ltd Container
JP6013699B2 (ja) * 2010-05-29 2016-10-25 東洋科学株式会社 容器及びその製造方法
CN107097365B (zh) * 2011-07-20 2019-11-12 日精Asb机械株式会社 树脂制容器的吹塑成型方法
DE102012105778A1 (de) * 2012-06-29 2014-03-20 Krones Ag Kunststoffbehältnis mit geradlinigen Mündungsbereichen
CN104487218B (zh) * 2012-08-03 2017-08-11 雀巢产品技术援助有限公司 用于制造预型件的方法、预型件及容器
BR112015012271B1 (pt) * 2012-11-28 2021-02-09 Airopack Technology Group B.V. sistema e método para fabricar de modo totalmente automático uma unidade de pressão e unidade de pressão montada dentro de um contentor de fluido
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Also Published As

Publication number Publication date
WO2008012708A2 (fr) 2008-01-31
RU2009105048A (ru) 2010-08-27
JP2009544488A (ja) 2009-12-17
BRPI0714500A2 (pt) 2013-03-12
CA2656731A1 (fr) 2008-01-31
MX2008016389A (es) 2009-03-09
WO2008012708A3 (fr) 2011-03-03
US20090239012A1 (en) 2009-09-24
CN101588901A (zh) 2009-11-25
EP1880824A1 (de) 2008-01-23

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