FR2740116A1 - Lid or cover strip for fresh prods., e.g. yoghourts - Google Patents

Lid or cover strip for fresh prods., e.g. yoghourts Download PDF

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Publication number
FR2740116A1
FR2740116A1 FR9512467A FR9512467A FR2740116A1 FR 2740116 A1 FR2740116 A1 FR 2740116A1 FR 9512467 A FR9512467 A FR 9512467A FR 9512467 A FR9512467 A FR 9512467A FR 2740116 A1 FR2740116 A1 FR 2740116A1
Authority
FR
France
Prior art keywords
layer
opp
lid
fresh
sealing
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.)
Granted
Application number
FR9512467A
Other languages
French (fr)
Other versions
FR2740116B1 (en
Inventor
Jean Jacques Lerda
Emmanuel Morin
Daniel Richer
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.)
Pechiney Emballage Alimentaire
Original Assignee
Pechiney Emballage Alimentaire
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 Pechiney Emballage Alimentaire filed Critical Pechiney Emballage Alimentaire
Priority to FR9512467A priority Critical patent/FR2740116B1/en
Priority to DE29617482U priority patent/DE29617482U1/en
Priority to ES09602649U priority patent/ES1035387Y/en
Publication of FR2740116A1 publication Critical patent/FR2740116A1/en
Application granted granted Critical
Publication of FR2740116B1 publication Critical patent/FR2740116B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • 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
    • 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
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • 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
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness

Abstract

The lid or cover strip consists of a layer of printed paper which is adhered to a thermoplastic material layer, and a hot adhesive layer.The thermoplastic material layer consists of a layer (3) of orientated polypropylene and the hot adhesive layer (4). The orientated layer is pref. 10 -50 mum thick

Description

BANDES D'OPERCULAGE ET OPERCULES POUR PRODUITS FRAIS ENLID TAPS AND LIDS FOR FRESH PRODUCTS IN

MATERIAU MULTICOUCHES COMPRENANT UNE COUCHE DE PAPIER ET  MULTI-LAYERED MATERIAL COMPRISING A PAPER LAYER AND

UNE COUCHE DE POLYPROPYLENEA POLYPROPYLENE LAYER

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention concerne le domaine des opercules ou bandes d'operculage pour produits  The invention relates to the field of lids or lidding strips for products.

frais, pelables, typiquement pour assurer la fermeture de pots de yaourt.  fresh, peelable, typically to seal yogurt jars.

ETAT DE LA TECHNIQUESTATE OF THE ART

On connaît déjà des opercules ou bandes d'operculage pour produits frais, soit à base de feuille d'aluminium, soit à base de film thermoplastique, et notamment dans la demande française n 2 557 542-A1 qui décrit l'utilisation d'un matériau multicouches comprenant  Lids or lidding strips for fresh products are already known, either based on aluminum foil or based on thermoplastic film, and in particular in French application No. 2,557,542-A1 which describes the use of a multilayer material comprising

du polyester métallisé et du papier.  metallized polyester and paper.

Typiquement, le matériau multicouches selon l'état de la technique présente la structure  Typically, the multilayer material according to the prior art has the structure

suivante: impression / papier / adhésif / PET métallisé / adhésif de thermoscellage.  next: printing / paper / adhesive / metallized PET / heat sealing adhesive.

Ce matériau est, de manière économique, utilisé sous forme de bande dans les procédés de type FFS (Form/Fill/Seal) o les pots de yaourt sont formés sur machine de conditionnement à partir d'une bobine de poylstyrene le plus souvent, puis ils sont remplis, et enfin fermés par thermoscellage de la bande d'operculage. Un tel procédé est  This material is, economically, used in the form of a strip in FFS (Form / Fill / Seal) type processes where the yoghurt pots are formed on a packaging machine from a coil of poylstyrene most often, then they are filled, and finally closed by heat sealing the sealing strip. Such a process is

schématisé en partie à la figure 3 du.. FR-A1-2 557 542.  schematized in part in Figure 3 of .. FR-A1-2 557 542.

PROBLEME POSEPROBLEM

Le problème réside dans la nécessité pour le fabricant d'emballages de pouvoir approvisionner le conditionneur de produits frais en matériaux multicouches qui soient à la fois adaptés aux nombreuses exigences techniques du métier d'une part, et qui soit aussi économique que possible d'autre part. En particulier, face aux fluctuations des matières premières, il est devenu nécessaire de pouvoir trouver des produits de substitution aux produits connus, par exemple à la bande d'operculage en matériau multicouches décrit dans le FR-A1-2 557 542, compte tenu notamment des fluctuations  The problem lies in the need for the packaging manufacturer to be able to supply the conditioner of fresh products with multilayer materials which are both suited to the many technical requirements of the trade on the one hand, and which are as economical as possible on the other go. In particular, faced with fluctuations in raw materials, it has become necessary to be able to find substitutes for known products, for example the sealing strip made of multilayer material described in FR-A1-2 557 542, taking into account in particular fluctuations

des cours du PET qui se répercutent sur le prix de revient des opercules.  PET prices which affect the cost price of the lids.

DESCRIPTION DE L'INVENTIONDESCRIPTION OF THE INVENTION

Selon l'invention, l'opercule ou bande d'operculage comprend une couche de papier imprimé adhérant à une couche de matériau thermoplastique, et une couche de thermoscellage, et est caractérisé en ce que ladite couche de matériau thermoplastique comprend une couche de polypropylène orienté (OPP), et une couche de thermoscellage  According to the invention, the seal or sealing strip comprises a layer of printed paper adhering to a layer of thermoplastic material, and a layer of heat-sealing, and is characterized in that said layer of thermoplastic material comprises a layer of oriented polypropylene. (OPP), and a heat sealing layer

adaptée à 1'OPP.adapted to OPP.

Selon l'invention, on peut utiliser une couche d'OPP métallisée ou non, notamment  According to the invention, it is possible to use a layer of OPP, metallized or not, in particular

quand on souhaite diminuer la perméabilité à l'oxygène.  when you want to decrease the oxygen permeability.

Une épaisseur de couche d'OPP comprise entre 10 et 50pm suffit pour obtenir les  An OPP layer thickness of between 10 and 50 μm is sufficient to obtain the

performances souhaitées.desired performance.

De préférence, la couche d'OPP a une épaisseur comprise entre 12 et 30 jum.  Preferably, the OPP layer has a thickness of between 12 and 30 µm.

De préférence, la couche de papier a un grammage compris entre 30 et 60 g/m2. Les problèmes à résoudre pour qu'un matériau en bande constitue une bande d'operculage acceptable sont relativement nombreux, compte tenu des cadences de production élevées, en relation avec la largeur de la bande et sa vitesse d'avancement, un des problèmes majeurs étant celui de la stabilité dimensionnelle de ladite bande d'operculage et celui du repérage des motifs imprimés quand il s'agit de motifs répétitifs, ce qui est le  Preferably, the paper layer has a basis weight between 30 and 60 g / m2. The problems to be solved for a strip material to constitute an acceptable sealing strip are relatively numerous, taking into account the high production rates, in relation to the width of the strip and its speed of advancement, one of the major problems being that of the dimensional stability of the said sealing strip and that of the identification of the printed patterns when it is repetitive patterns, which is the

cas le plus fréquent.most frequent case.

Compte tenu de ces problèmes, l'homme du métier des opercules pour produits frais ne s'était pas, jusqu'à présent, hasardé à utiliser, comme matériau thermoplastque pour fabriquer des matériaux multicouches comprenant une couche de papier et une couche de  In view of these problems, the person skilled in the art of lids for fresh products has not, until now, ventured to use, as a thermoplastic material for manufacturing multilayer materials comprising a layer of paper and a layer of

matériau thermoplastique, autre chose qu'un matériau à base de PET, métallisé ou non.  thermoplastic material, something other than a PET-based material, metallized or not.

EXEMPLE DE REALISATIONEXAMPLE OF IMPLEMENTATION

On a fabriqué une bande d'operculage de 512 cm de large par collage d'une bande de papier imprimé de 45 g/m2 sur une bande d'OPP métallisée de 20 pm d'épaisseur (côté de la métallisation). L'OPP métallisée a été approvisionné auprès de la Société  A 512 cm wide sealing strip was made by gluing a strip of 45 g / m2 printed paper onto a 20 µm thick OPP metallized strip (metallization side). The metallized OPP has been supplied from the Company

MOPLEFAN sous la référence CDM25 1.  MOPLEFAN under the reference CDM25 1.

On a sélectionné une couche de thermoscellage adaptée au thermoscellage de l'OPP sur des pots en polystyrène PS et assurant une pelabilité correcte de l'opercule à l'ouverture,  We selected a heat-sealing layer suitable for heat-sealing OPP on PS polystyrene pots and ensuring correct peelability of the lid on opening,

et on l'a appliquée sur la bande d'OPP avec un grammage de 3 g/m2.  and it was applied to the OPP tape with a grammage of 3 g / m2.

On a ainsi obtenu un matériau multicouches ayant les propriétés suivantes: * adhérence sur PS: 650 +/- 250g/15mm * tenue à la pression interne (ou à la dépression interne): > 200 mbar * étanchéité aux bactéries: 100% * allongement à la rupture sens marche: 2,5 % 1O * température de scellabilité: > 100 C *perméabilité à l'oxygène: < 15 cm3/m2/jour Les essais sur ligne industrielle de conditionnement ont montré un comportement  A multilayer material was thus obtained having the following properties: * adhesion to PS: 650 +/- 250g / 15mm * resistance to internal pressure (or internal depression):> 200 mbar * impermeability to bacteria: 100% * elongation at break in running direction: 2.5% 1O * sealability temperature:> 100 C * oxygen permeability: <15 cm3 / m2 / day Tests on an industrial packaging line have shown behavior

totalement satisfaisant de ce matériau multicouches.  totally satisfactory of this multilayer material.

AVANTAGES DE L'INVENTIONADVANTAGES OF THE INVENTION

L'invention permet d'élargir l'offre faite au conditionneur de produits frais, de s'affranchir des difficultés d'approvisionnement en PET, de réduire éventuellement les prix de revient des opercules ou bandes d'operculage selon l'invention par rapport au  The invention makes it possible to widen the offer made to the packer of fresh products, to overcome the difficulties of supplying PET, to possibly reduce the cost prices of the lids or lidding strips according to the invention compared to the

matériau à base de PET.PET-based material.

Enfin, le matériau selon l'invention présente une sensation, une " main " plus agréable au  Finally, the material according to the invention has a sensation, a "hand" more pleasant to

toucher que le matériau à base de PET.  touch that PET-based material.

Claims (4)

REVENDICATIONS 1 - Opercule ou bande d'operculage comprenant une couche de papier imprimé adhérant à une couche de matériau thermoplastique, et une couche de thermoscellage, caractérisé en ce que ladite couche de matériau thermoplastique comprend une couche de  1 - Lid or lidding strip comprising a layer of printed paper adhering to a layer of thermoplastic material, and a layer of heat-sealing, characterized in that said layer of thermoplastic material comprises a layer of polypropylene orienté OPP, et une couche de thermoscellage adaptée à l'OPP.  polypropylene oriented OPP, and a heat sealing layer suitable for OPP. 2 - Opercule ou bande d'operculage selon la revendication I dans lequel ladite couche de  2 - Lid or lidding strip according to claim I wherein said layer of polypropylène orienté OPP est constitué par une couche d'OPP métallisée.  OPP oriented polypropylene consists of a layer of metallized OPP. 3 - Opercule ou bande d'operculage selon une quelconque des revendications 1 à 2 dans  3 - Lid or lidding strip according to any one of claims 1 to 2 in lequel l'épaisseur de ladite couche d'OPP est comprise entre 10 et 50 pn.  wherein the thickness of said OPP layer is between 10 and 50 pn. 4 - Opercule ou bande d'operculage selon une quelconque des revendications 1 à 3 dans  4 - Lid or lidding strip according to any one of claims 1 to 3 in lequel ledit papier est imprimé avec des motifs répétitifs.  wherein said paper is printed with repeating patterns. - Utilisation d'un matériau multicouches comprenant une couche de OPP, éventuellement métallisée, une couche de papier imprimé, comme opercule ou bande d'operculage.  - Use of a multilayer material comprising a layer of OPP, possibly metallized, a layer of printed paper, as a seal or sealing strip.
FR9512467A 1995-10-18 1995-10-18 SEALING STRIPS AND SEALS FOR FRESH PRODUCTS IN MULTI-LAYER MATERIAL COMPRISING A LAYER OF PAPER AND A LAYER OF POLYPROPYLENE Expired - Fee Related FR2740116B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9512467A FR2740116B1 (en) 1995-10-18 1995-10-18 SEALING STRIPS AND SEALS FOR FRESH PRODUCTS IN MULTI-LAYER MATERIAL COMPRISING A LAYER OF PAPER AND A LAYER OF POLYPROPYLENE
DE29617482U DE29617482U1 (en) 1995-10-18 1996-10-08 Cover strips and cover made of multi-layer material
ES09602649U ES1035387Y (en) 1995-10-18 1996-10-17 OPERCULO OR CLOSING BAND.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9512467A FR2740116B1 (en) 1995-10-18 1995-10-18 SEALING STRIPS AND SEALS FOR FRESH PRODUCTS IN MULTI-LAYER MATERIAL COMPRISING A LAYER OF PAPER AND A LAYER OF POLYPROPYLENE

Publications (2)

Publication Number Publication Date
FR2740116A1 true FR2740116A1 (en) 1997-04-25
FR2740116B1 FR2740116B1 (en) 1997-11-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9512467A Expired - Fee Related FR2740116B1 (en) 1995-10-18 1995-10-18 SEALING STRIPS AND SEALS FOR FRESH PRODUCTS IN MULTI-LAYER MATERIAL COMPRISING A LAYER OF PAPER AND A LAYER OF POLYPROPYLENE

Country Status (3)

Country Link
DE (1) DE29617482U1 (en)
ES (1) ES1035387Y (en)
FR (1) FR2740116B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29701955U1 (en) * 1997-02-05 1997-03-20 Hueck Folien Gmbh & Co Kg Cover for a packaging arrangement
DE19900873A1 (en) * 1999-01-12 2000-07-13 Bremerland Nordheide Molkerei Portion packaging for e.g. creme for coffee has cover with pull tab for opening, and adhesive label on cover to re-cover it partially after opening

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2843987A1 (en) * 1978-06-29 1980-01-03 Denki Kagaku Kogyo Kk FILM AND METHOD FOR HEAT SEALING OR -WELDING
FR2462998A1 (en) * 1979-08-10 1981-02-20 Scheuch Folien Papier Kg Laminated films for heat-sealing containers - incorporating metallised thermoplastic film instead of metal foil
JPH03169627A (en) * 1989-11-30 1991-07-23 Toray Ind Inc Easy sliding and bonding film
JPH07187180A (en) * 1993-12-27 1995-07-25 Dainippon Printing Co Ltd Lid member of paper container for powder detergent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2843987A1 (en) * 1978-06-29 1980-01-03 Denki Kagaku Kogyo Kk FILM AND METHOD FOR HEAT SEALING OR -WELDING
FR2462998A1 (en) * 1979-08-10 1981-02-20 Scheuch Folien Papier Kg Laminated films for heat-sealing containers - incorporating metallised thermoplastic film instead of metal foil
JPH03169627A (en) * 1989-11-30 1991-07-23 Toray Ind Inc Easy sliding and bonding film
JPH07187180A (en) * 1993-12-27 1995-07-25 Dainippon Printing Co Ltd Lid member of paper container for powder detergent

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9135, Derwent World Patents Index; Class A81, AN 91-257913, XP002005828 *
PATENT ABSTRACTS OF JAPAN vol. 95, no. 007 *

Also Published As

Publication number Publication date
DE29617482U1 (en) 1996-11-21
ES1035387Y (en) 1997-10-16
ES1035387U (en) 1997-04-16
FR2740116B1 (en) 1997-11-14

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Effective date: 20090630