EP2061652A2 - Matériau d'emballage thermoformable présentant des propriétés de rétrécissement - Google Patents

Matériau d'emballage thermoformable présentant des propriétés de rétrécissement

Info

Publication number
EP2061652A2
EP2061652A2 EP07801943A EP07801943A EP2061652A2 EP 2061652 A2 EP2061652 A2 EP 2061652A2 EP 07801943 A EP07801943 A EP 07801943A EP 07801943 A EP07801943 A EP 07801943A EP 2061652 A2 EP2061652 A2 EP 2061652A2
Authority
EP
European Patent Office
Prior art keywords
heat
shrinkable
film
packaging
multilayer film
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Withdrawn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
EP07801943A
Other languages
German (de)
English (en)
Inventor
Walter Bernig
Phillip Hartmann
Bernard Dujardin
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.)
SCHUR FLEXIBLES DIXIE GmbH
Original Assignee
CFS Kempten GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38573345&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2061652(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by CFS Kempten GmbH filed Critical CFS Kempten GmbH
Publication of EP2061652A2 publication Critical patent/EP2061652A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/428—Heating or cooling of moulds or mould parts
    • 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
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1616—Cooling using liquids
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1658—Cooling using gas
    • 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
    • B29K2995/0049—Heat shrinkable
    • 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.]
    • Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • Y10T428/3192—Next to vinyl or vinylidene chloride polymer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31928—Ester, halide or nitrile of addition polymer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon

Definitions

  • the invention relates to multilayer films which are thermoformable and at the same time heat shrinkable even at high overall thicknesses, wherein the heat shrinkability is practically unaffected by the thermoforming, as well as packaging wells made therefrom and corresponding packaging produced on an adapted packaging machine.
  • thermoformable, preferably thermoformable, sealable, heat-shrinkable multilayer film having an identical layer structure symmetrically arranged on each of the two surfaces of a two-layer, central inner layer, wherein the heat shrinkability of the multilayer film in the longitudinal and transverse direction of at least 20% in each case. at 93 0 C is not affected by a thermoforming substantially.
  • the invention relates to a thermoformable, preferably deep-drawable, sealable, heat shrinkable multilayer film having a central, two-ply inner layer (I) based on at least thermoplastic polymer having a Vicat softening point of less than or equal to 65 0 C as determined by ASTM D 1525-ISO 306 comprising on each of its two surfaces with an identical layer structure
  • a suitable adhesion promoter layer H 2 , preferably based on at least one polymer having a melt flow index MFI in the range of 0.1 to 2.0 g / 10 min determined according to DIN ISO 1133 at 190 0 C and 2.16 kg and
  • the layer thickness of the sealing layers (S) is in each case preferably at most 25% of the total layer thickness of the multilayer film according to the invention.
  • Each seal layer (S) preferably has a layer thickness in the range from 5 to 25 ⁇ m, particularly preferably 7.5 to 20 ⁇ m.
  • the film web according to the invention is cooled during deep drawing, thereby producing a sealable, deep-drawn, shrinkable packaging tray from a film web.
  • the film web is clamped before deep drawing.
  • the film web is heated prior to deep drawing.
  • the heating and cooling takes place offset in time, wherein the heating preferably takes place before cooling.
  • the film web is partially heated before and cooled during deep drawing. Deep drawing can be done in any manner known to those skilled in the art.
  • the deep-drawing takes place by overpressure and / or underpressure (vacuum).
  • FIG. 1 shows the thermoforming device which has a deep-drawing tool 3 with a plurality of deep-drawing chambers 10. According to the invention, this thermoforming tool is cooled, wherein the cooling in the present case takes place through bore 2, through which a cooling medium is passed. Above the thermoforming tool 3 is to be deformed, inventive, shrinkable film web 1, which is clamped between the thermoforming tool 3 and a clamping frame 4. The clamping frame 4 is in the present case by means of the bore 5, through which a coolant is guided, also coolable. Above the film web 1 are heating plates 7, which, as shown by the double arrows 6, can be raised or lowered. The skilled person knows that the thermoforming tool 3 is also vertically movable.
  • the sealed, heat-shrinkable packaging according to the invention thus obtained is finally shrunk as set out above, so that both the thermoformed packaging tray and optionally the cover sheet contract and fit tightly against the packaged product.
  • the shrinking process is initiated by heat, for example in a thermal chamber.
  • the invention also relates to a heat-shrunk package obtainable by the above-described shrinkage of the sealed heat-shrinkable package.
  • the displaced by the shrinking process atmosphere can escape, for example, through a small opening in the package, the opening is finally closed.
  • the package may be evacuated during or after sealing.

Abstract

La présente invention concerne une feuille multicouche soudable, thermoformable, pouvant rétrécir à la chaleur, qui présente une structure symétrique autour d'une couche intérieure à deux strates et une capacité de rétrécissement à la chaleur dans le sens longitudinal et perpendiculaire d'au moins 20 % à 93 °C respectivement, la capacité de rétrécissement à la chaleur n'étant pas sensiblement influencée par un thermoformage. La présente invention concerne également des procédés selon lesquels la feuille multicouche selon l'invention peut être transformée avantageusement en emballages rétrécis à la chaleur, en particulier en utilisant des machines d'emballage équipées spécialement.
EP07801943A 2006-08-30 2007-08-28 Matériau d'emballage thermoformable présentant des propriétés de rétrécissement Withdrawn EP2061652A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610040526 DE102006040526A1 (de) 2006-08-30 2006-08-30 Thermoformbares Verpackungsmaterial mit Schrumpfeigenschaften
PCT/EP2007/007521 WO2008025518A2 (fr) 2006-08-30 2007-08-28 Matériau d'emballage thermoformable présentant des propriétés de rétrécissement

Publications (1)

Publication Number Publication Date
EP2061652A2 true EP2061652A2 (fr) 2009-05-27

Family

ID=38573345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801943A Withdrawn EP2061652A2 (fr) 2006-08-30 2007-08-28 Matériau d'emballage thermoformable présentant des propriétés de rétrécissement

Country Status (10)

Country Link
US (1) US8424273B2 (fr)
EP (1) EP2061652A2 (fr)
BR (1) BRPI0716140A8 (fr)
CA (1) CA2659764C (fr)
DE (1) DE102006040526A1 (fr)
MX (1) MX2009001376A (fr)
NO (1) NO20090815L (fr)
RU (1) RU2445214C2 (fr)
UA (1) UA95971C2 (fr)
WO (1) WO2008025518A2 (fr)

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DE102006040526A1 (de) 2008-03-06
MX2009001376A (es) 2009-08-20
WO2008025518A3 (fr) 2008-07-31
NO20090815L (no) 2009-02-23
WO2008025518A2 (fr) 2008-03-06
CA2659764C (fr) 2015-01-27
RU2009111385A (ru) 2010-10-10
CA2659764A1 (fr) 2008-03-06
US20090301035A1 (en) 2009-12-10
US8424273B2 (en) 2013-04-23
RU2445214C2 (ru) 2012-03-20
BRPI0716140A2 (pt) 2013-09-17
BRPI0716140A8 (pt) 2017-12-19

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