EP0885120A1 - Emballage torsade - Google Patents

Emballage torsade

Info

Publication number
EP0885120A1
EP0885120A1 EP97911952A EP97911952A EP0885120A1 EP 0885120 A1 EP0885120 A1 EP 0885120A1 EP 97911952 A EP97911952 A EP 97911952A EP 97911952 A EP97911952 A EP 97911952A EP 0885120 A1 EP0885120 A1 EP 0885120A1
Authority
EP
European Patent Office
Prior art keywords
layer
styrene
packaging
packaging material
weight
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Withdrawn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
EP97911952A
Other languages
German (de)
English (en)
Inventor
Olle Mannertorp
Erich Kreutzer
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.)
Teich AG
Original Assignee
Teich AG
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 Teich AG filed Critical Teich AG
Publication of EP0885120A1 publication Critical patent/EP0885120A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (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
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • 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
    • B32B2325/00—Polymers of vinyl-aromatic compounds, e.g. polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Definitions

  • the invention relates to a packaging material for twist packaging and a twist packaging consisting of this packaging material.
  • a known way of closing full wraps for packaging purposes, in particular of small packaging goods such as candy, is twisting or twisting.
  • the packaging material is wrapped in the packaging material and then closed on one or both sides by twisting the packaging material.
  • twist packs it is necessary that the packaging material is rotatable, that is twistable, on the one hand, and maintains its screwed-in shape on the other hand. This is the only way to ensure that the goods to be packaged are not released from the packaging by automatically opening the film during transport and storage.
  • This twist behavior is either due to high surface friction, e.g. with polypropylene (PP) and / or by breaking open the internal material structure, e.g. with cellophane.
  • PP polypropylene
  • the object of the invention is therefore to provide a packaging material with satisfactory twist behavior and at the same time good machinability.
  • a multilayer packaging material for twist packaging produced by coextrusion which consists of at least one layer A, which is formed from a polypropylene-containing plastic, and at least one layer B, which contains a styrene / styrene-butadiene copolymer blend .
  • the layers A preferably adjoin the layer B on both sides.
  • the packaging material according to the invention also has the advantages that layer A contains a sealable polypropylene copolymer and layer B contains 15-25% by weight of styrene and 75-85% by weight of styrene-butadiene copolymer based on 100% by weight. of the total weight of layer B.
  • the invention further relates to a twist packaging for lumpy packaging goods such as candies, which can be produced from the aforementioned packaging material.
  • layers A are attached to the layer B on both sides by coextrusion, so that a multilayer composite with the structure A-B-A is formed.
  • the layer thicknesses are selected from the following percentage ranges, the sum of which must each amount to 100% of the total layer thickness.
  • the materials of layer A are polypropylene (PP) -containing plastics or blends.
  • the PP can be both a homopolymer and a copolymer or a mixture (blend) thereof.
  • a copolymer provides the advantage of additionally to ⁇ sealability against itself, against a PP homo-polymer or PP blends.
  • the layer composition according to A can be modified by adding additives.
  • Layer B consists of a styrene / styrene-butadiene copolymer blend, the so-called “general purpose polystyrene” (crystal styrene) being suitable as the styrene component.
  • Polystyrene with a molecular weight of greater than 200,000 and a molecular weight distribution of 2-3 is particularly preferred.
  • Suitable styrene-butadiene copolymers are styrene-butadiene-styrene (SBS) and styrene-butadiene rubber (SBR) types with 10-90% by weight of styrene or 10-90% by weight of butadiene on the total copolymer weight. Very good results can be achieved with a butadiene content of 10 to 36% by weight.
  • SBS styrene-butadiene-styrene
  • SBR styrene-butadiene rubber
  • a blend of 15-25% by weight of high molecular weight styrene and a styrene-butadiene copolymer fraction of 75-85% by weight is particularly preferred.
  • the sum of the individual layers must total 100% of the total layer thickness. Although these multilayer composites have a high level of rigidity, they are more difficult to manufacture. To improve the adhesion of the layers to one another, adhesion promoters such as EVA, EAA, etc. can be used in a small thickness.
  • the outermost layer of material is formed by the PP-containing layer A.
  • the water and fat resistance and the decorative design are provided by printing or metallizing the packaging material according to the invention.

Landscapes

  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

L'invention concerne un matériau d'emballage multicouche coextrudé destiné à des emballages torsadés. Ce matériau est constitué d'une couche A en plastique contenant du polypropylène et d'au moins une couche B contenant un mélange copolymère de styrène/styrène-butadiène.
EP97911952A 1996-11-18 1997-11-18 Emballage torsade Withdrawn EP0885120A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2010/96 1996-11-18
AT0201096A AT405628B (de) 1996-11-18 1996-11-18 Verwendung eines durch coextrusion hergestellten mehrschichtigen verpackungsmaterials für twistverpackungen
PCT/AT1997/000248 WO1998022281A1 (fr) 1996-11-18 1997-11-18 Emballage torsade

Publications (1)

Publication Number Publication Date
EP0885120A1 true EP0885120A1 (fr) 1998-12-23

Family

ID=3525895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97911952A Withdrawn EP0885120A1 (fr) 1996-11-18 1997-11-18 Emballage torsade

Country Status (9)

Country Link
EP (1) EP0885120A1 (fr)
AT (1) AT405628B (fr)
AU (1) AU4934297A (fr)
BR (1) BR9707156A (fr)
CA (1) CA2243299A1 (fr)
EE (1) EE9800217A (fr)
NO (1) NO983296L (fr)
PL (1) PL327926A1 (fr)
WO (1) WO1998022281A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10105125B4 (de) * 2001-02-05 2004-06-03 Nordenia Deutschland Gronau Gmbh Verpackungsfolie für Dreheinschlagverpackungen
DE10107592B4 (de) 2001-02-17 2005-04-28 Nordenia Deutschland Gronau Etikettierfolie
ITTO20010647A1 (it) * 2001-07-04 2003-01-04 Nova Plast S R L Impiego di un materiale pellicolare multistrato per realizzare involucri.
ITPD20020291A1 (it) * 2002-11-14 2004-05-15 Bp Europack Spa Imballo particolarmente per il confezionamento di prodotti alimentari.
RU2415014C2 (ru) 2005-11-15 2011-03-27 Дау Глобал Текнолоджиз Инк. Ориентированные многослойные усаживающиеся этикетки
WO2009010079A1 (fr) 2007-07-16 2009-01-22 Rkw Se Films pour étiquettes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB993981A (en) * 1961-10-10 1965-06-02 William Robert Brown Improvements in or relating to twist sealable sheet material and container, and method of making the same
JPS5119079A (ja) * 1974-08-09 1976-02-16 Sumitomo Bakelite Co Fukugofuirumunaishishiito
DE7441421U (de) * 1974-12-12 1975-04-10 Ebert Kg Einwickler fuer Bonbons u dgl
JPS5957748A (ja) * 1982-09-29 1984-04-03 電気化学工業株式会社 共押出積層シ−ト
DE3611341A1 (de) * 1986-04-04 1987-10-08 Hoechst Ag Opake folie fuer den bonbondreheinschlag
DE9111671U1 (de) * 1991-09-19 1991-11-14 Ebert Folien AG, 65201 Wiesbaden Verpackungsfolie aus Kunststoff
IT1251530B (it) * 1991-10-31 1995-05-16 Enichem Polimeri Accoppiato multistrato termoplastico
DE4318031A1 (de) * 1993-05-29 1994-12-01 Hoechst Ag Harzhaltige, biaxial orientierte Polypropylen-Mehrschichtfolie, Verfahren zu ihrer Herstellung und ihre Verwendung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9822281A1 *

Also Published As

Publication number Publication date
WO1998022281A1 (fr) 1998-05-28
BR9707156A (pt) 1999-05-18
AT405628B (de) 1999-10-25
NO983296D0 (no) 1998-07-16
PL327926A1 (en) 1999-01-04
NO983296L (no) 1998-09-17
ATA201096A (de) 1999-02-15
EE9800217A (et) 1998-12-15
AU4934297A (en) 1998-06-10
CA2243299A1 (fr) 1998-05-28

Similar Documents

Publication Publication Date Title
EP0244614B1 (fr) Feuille opaque pour l'emballage par torsion de bonbons
DE3650654T2 (de) Kunststoffzusammensetzung und diese Zusammensetzung enthaltende Filme und Mehrschichtstrukturen sowie daraus hergestellte Verpackungen
DE3382804T2 (de) Polymermaterialzusammensetzung, orientierte Polymerfilme und daraus hergestellte schrumpffähige Beutel
DE60034108T2 (de) Verfahren zur herstellung eines stiftes durch tri-extrusion und stift mit einer schutzschicht
EP1388415B2 (fr) Feuille thermocollante pour emballages déchirables
EP0177872B1 (fr) Feuille multicouche opaque à faible densité
DE2819766C2 (fr)
EP0662098B1 (fr) Emballage ayant une feuille de recouvrement pour le maintien d'objets sur des supports
AT405628B (de) Verwendung eines durch coextrusion hergestellten mehrschichtigen verpackungsmaterials für twistverpackungen
EP1607431B1 (fr) Feuille élastique transparent en matière plastique avec mélange des copolymérisats séquences de styrène/butadiène et des polyolefines
EP1306209A1 (fr) Film multicouche produit par co-extrusion
DE102006002965B4 (de) Mehrschichtige Kunststofffolie
JPH01269528A (ja) 積層物
DE202005020795U1 (de) Dreheinschlagfolie
EP0503124B2 (fr) Récipient contenant un joint pour fermeture préparé d' un composition polymère
DE4137658A1 (de) Verpackungsmaterial aus mehrlagigen verbundstoffen
DE4414669C2 (de) Verwendung eines Kunststoff-Materials zur Herstellung einer Folie für manipulationssichere Abdeckungen von Warenträgern
EP0596087A1 (fr) Unite de fermeture.
EP2585535B1 (fr) Elément d'emballage
EP1363774B1 (fr) Feuille d'emballage, en particulier feuille d'emballage fermee par torsion, et procede de fabrication de ladite feuille
EP1408096A1 (fr) Feuille stratifiée comprenant au moins deux couches
DE3605405A1 (de) Thermoverformbare koextrudierte mehrschichtfolie mit gasabdichteigenschaften
DE3534399A1 (de) Kunststoffolien-metallfolienverbund
EP0217253A2 (fr) Feuille en matière plastique
DE9111671U1 (de) Verpackungsfolie aus Kunststoff

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980721

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE DK ES FI FR GB GR IE IT NL PT SE

AX Request for extension of the european patent

Free format text: LV PAYMENT 980721

RAX Requested extension states of the european patent have changed

Free format text: LT PAYMENT 980721;LV PAYMENT 980721

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010601