EP2531419A1 - Verfahren zur einfachen öffnung eines heissiegelung auf dem verschlussring eines glasbehälters und entsprechender glasbehälter - Google Patents

Verfahren zur einfachen öffnung eines heissiegelung auf dem verschlussring eines glasbehälters und entsprechender glasbehälter

Info

Publication number
EP2531419A1
EP2531419A1 EP11705930A EP11705930A EP2531419A1 EP 2531419 A1 EP2531419 A1 EP 2531419A1 EP 11705930 A EP11705930 A EP 11705930A EP 11705930 A EP11705930 A EP 11705930A EP 2531419 A1 EP2531419 A1 EP 2531419A1
Authority
EP
European Patent Office
Prior art keywords
heat
glass container
pot
equivalent
organic
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
EP11705930A
Other languages
English (en)
French (fr)
Other versions
EP2531419B1 (de
Inventor
Eric Martin
Boris Chauvet
Frédéric Mertz
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.)
Verallia France SA
Original Assignee
Saint Gobain Emballage 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 Saint Gobain Emballage SA filed Critical Saint Gobain Emballage SA
Publication of EP2531419A1 publication Critical patent/EP2531419A1/de
Application granted granted Critical
Publication of EP2531419B1 publication Critical patent/EP2531419B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container

Definitions

  • the present invention relates to glass packaging (jar, bottle with wide opening, bottle, carafe, ...) having a rim forming a surface of any geometry (annular, oval, substantially rectangular or other) and on which is heat sealed a metal seal providing a tight seal.
  • the rim is initially coated with a layer of heat-sealing primer, while the seal includes a layer of thermoplastic resin which allows heat-sealing by application of a sufficient temperature and pressure.
  • the invention relates to a method of opening a lid comprising a metal sheet and a thermoplastic resin layer through which the lid is heat-sealed on the rim of a pot or equivalent container of glass, having previously coated with a heat-sealing primer, the heat-sealed lid providing a tight closure of the pot or equivalent container of glass; this method is distinguished by the fact that the initial and final tearing forces are at most 30 N, during peeling of the lid at 90 ° at a speed of 300 mm / min.
  • the opening of the package is easy even for a relatively small person, and avoids tearing the lid in several pieces during peeling. This easy opening is now achieved while meeting the sustainable sealing requirements required for all content, including food.
  • the initial and final tearing forces are at most 28, preferably
  • the opening of the lid leaves no residue of its thermoplastic resin layer on the rim of the glass container.
  • the subject of the invention is also an equivalent pot or container (bottle, flask, carafe, etc.) of glass capable of implementing the process described above, characterized in that the heat-sealing primer coating comprises a material organic and / or mineral in which are incorporated mineral and / or organic fillers.
  • said organic material is the drying product of an aqueous dispersion of ethylene-acrylic acid copolymer whose carboxylic acid functions are partially or completely neutralized.
  • This organic material may be alone or associated with at least one other organic and / or inorganic material - in addition to fillers - in the heat-sealing primer.
  • This copolymer is solid and stable in its suspension at room temperature; the implementation by aqueous route is advantageous.
  • the pot coated with heat-sealing primer thus obtained can be delivered to its user-filler without delay, which eliminates the need to store more or less large volumes of pots before delivery.
  • the heat-sealing primer can contain mineral or organic fillers of one or more chemical natures, only mineral or organic fillers or both.
  • said mineral fillers are incorporated in the dispersions of heat-sealing primer in the form of aggregates or powder of solid particles of sizes between 1 nm and 20 ⁇ m, preferably between 150 nm and 10 ⁇ m, of one or more materials. selected from clays, kaolin, mica, talc, silicas, carbonates or alkaline earth sulfates, metal oxides.
  • organic fillers When organic fillers are employed, they are advantageously of a different chemical nature from that of the heat-sealing primer (that is to say of the material constituting it excluding the fillers) as well as the thermoplastic resin of the cap, have a melting temperature higher than that of these two constituents and consist of particles of sizes between 1 nm and 20 ⁇ m, preferably between 150 nm and 10 ⁇ m.
  • Said organic fillers preferably comprise one or more polymers assembled in the form of copolymer, graft polymer, alloy or core-shell structure chosen from high density polyethylene (HDPE), polypropylene (PP), polystyrene (PS), polyamide (PA), polyester, polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), poly (ethylene glycol) (PEG), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polyetheretherketone (PEEK).
  • HDPE high density polyethylene
  • PP polypropylene
  • PS polystyrene
  • PA polyamide
  • PVDF polyvinylidene fluoride
  • PTFE polytetrafluoroethylene
  • PEG poly (ethylene glycol)
  • PET polyethylene terephthalate
  • PMMA polymethyl methacrylate
  • PEEK polyetheretherketone
  • Another object of the invention lies in the application of a method, or a pot or glass equivalent container described above, to the packaging of agri-food products, such as dairy or fruit-based, meat ( dough).
  • agri-food products such as dairy or fruit-based, meat ( dough).
  • the invention makes it possible to guarantee the preservation of the contents while respecting the conditions in particular of temperature prescribed for this purpose, and the tightness of the packaging in such conditions of conservation of the contents.
  • a heat-sealing primer coating is deposited on the rim of the pot. Any other contact method, such as tempered, brush, buffer ... or without contact such as projection, spraying ... can be used.
  • Heat sealing the primary is organic and comprises an aqueous dispersion of random linear copolymer ethylene-acrylic acid of average molecular weight M w of about 33 000 g / mol expressed in polystyrene equivalent.
  • the copolymer comprises 9.1% of acrylic acid units and 90.9% of ethylene units.
  • the carboxylic acid functions of the poly (ethylene-carboxylic acid) ionomer are neutralized to 100% with ammonia.
  • the pH of the suspension is adjusted to between 8.5 and 9. According to the application method used, the solids content of heat-sealing primer used varies from 0.2 to 10% by weight; it is here 9.5% in mass.
  • This material has a broad melting peak between 70 and 95 ° C (Differential Scanning Calorimetry - DSC - 15 ° C / min).
  • the heat-sealing surface of the glass jar is roll coated with a uniform layer of primer having a mean dry thickness of 1.8 ⁇ .
  • the heat sealing is carried out according to standard settings applied in industrial conditions, by means of a soft-head heat sealer delivering a thrust of approximately 1560 N.
  • the head is heated to 250 ° C, so that the temperature at the interface pot
  • the lid reaches 149 to 155 ° C for a duration of pressure application by the heated head of 1.5 s.
  • the assembled system is waterproof.
  • the peel forces are peeled at 90 ° C at a speed of 300 mm / min.
  • the typical known peel pattern on this type of system can be described by three forces: the initial peel force (Al), the flow force (FE), and the final peel force (AF).
  • the average of Al and AF is 44.8 N.
  • the peel of the operculum is therefore relatively difficult.
  • Example 1 is reproduced except that the heat-sealing primer is mixed with a suspension of Na + partition previously dispersed with the deflocculator in deionized water at a speed of between 500 and 1000 revolutions / min. 10 minutes.
  • the solids in the mixture obtained are 9.5% by weight of primer and 0.6% by mass of Na + partition.
  • a homogeneous layer having a mean dry thickness of 1.8 ⁇ is rolled.
  • the average of Al and AF is 18.9 N, corresponding to a relatively easy operculum peel, the addition of Na + partitioning making it possible to reduce by more than 50% the force required for this purpose (to be compared with that of Comparative Example 1).
  • the operculum does not tear on peeling, after which no residue of thermoplastic resin originating from the lid is observed on the rim of the pot.
  • the opening of the packaging can therefore be described as clean.
  • Example 1 is reproduced with the difference that the heat-sealing primer is mixed with magnetic stirring to an aqueous suspension at pH 8.5. of polytetrafluoroethylene (PTFE) whose particles have an average size of 155 nm and containing a surfactant which does not interfere with the adhesion to the glass.
  • PTFE polytetrafluoroethylene
  • the solids in the mixture obtained are 9.5% by weight of primer and 4.5% by weight of PTFE.
  • the average of Al and AF is 25.3 N, corresponding to a relatively easy operculum peel, the addition of PTFE making it possible to reduce by more than 40% the force required for this purpose.
  • Example 1 is repeated with the difference that the thermosmoothing primer is mixed with magnetic stirring suspensions of Na + and PTFE partitions of Examples 2 and 3.
  • the solids in the resulting mixture are adjusted to 9.5 % by weight of primer, 0.38% by mass of Na + partition and 3% by weight of PTFE.
  • the formulation is deposited according to the same process and the same thickness as the previous examples.
  • the average of Al and AF is 14.8 N, corresponding to a very easy operculum peel, the joint addition of Na + partition and PTFE having allowed to reduce by more than 65% the force required for this purpose. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Closures For Containers (AREA)
  • Paints Or Removers (AREA)
  • Closing Of Containers (AREA)
  • Package Closures (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Glass Compositions (AREA)
EP11705930.3A 2010-02-03 2011-01-26 Verfahren zum leichten öffnen einer auf dem öffnungsrand eines helälters versiegelten deckelfolie und entsprechender bahälter Active EP2531419B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1050738A FR2955844B1 (fr) 2010-02-03 2010-02-03 Procede d'ouverture facile d'un opercule thermoscelle sur le buvant d'un recipient en verre
PCT/FR2011/050148 WO2011095726A1 (fr) 2010-02-03 2011-01-26 Procede d'ouverture facile d'un opercule thermoscelle sur le buvant d'un recipient en verre et recipient correspondant

Publications (2)

Publication Number Publication Date
EP2531419A1 true EP2531419A1 (de) 2012-12-12
EP2531419B1 EP2531419B1 (de) 2013-11-20

Family

ID=42557442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11705930.3A Active EP2531419B1 (de) 2010-02-03 2011-01-26 Verfahren zum leichten öffnen einer auf dem öffnungsrand eines helälters versiegelten deckelfolie und entsprechender bahälter

Country Status (11)

Country Link
US (1) US9302837B2 (de)
EP (1) EP2531419B1 (de)
AR (1) AR080053A1 (de)
BR (1) BR112012019415B1 (de)
CL (1) CL2012002176A1 (de)
ES (1) ES2441812T3 (de)
FR (1) FR2955844B1 (de)
PT (1) PT2531419E (de)
RU (1) RU2566311C2 (de)
UA (1) UA106648C2 (de)
WO (1) WO2011095726A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT3265389T (pt) 2015-03-04 2019-08-06 Cie Generale De Conserve Lata de conservas de fundo flexível e processo de fabrico correspondente
FR3101861B1 (fr) 2019-10-14 2021-11-12 Groupe Daucy Méthode de fabrication d’une boîte de conserve

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748816A (en) * 1969-10-02 1973-07-31 R Asmus Method of sealing a container
US4180961A (en) * 1976-12-08 1980-01-01 Aluminum Company Of America Induction heat sealed containers
JPS5820604A (ja) * 1981-07-20 1983-02-07 株式会社細川洋行 ガラス容器の蓋材シ−ル方法
US4396655A (en) * 1982-03-08 1983-08-02 Owens-Illinois, Inc. Method of sealing a glass container with a thin membrane closure
US4913307A (en) * 1986-09-30 1990-04-03 Idemitsu Petrochemical Co., Ltd. Easily openable packaging container and method for producing the same
US4771903A (en) * 1986-11-14 1988-09-20 Leon Levene Glass container sealing method
NZ226028A (en) 1987-09-09 1990-06-26 Idemitsu Petrochemical Co Hermetically sealed package which can be resealed after opening
GB8729725D0 (en) * 1987-12-21 1988-02-03 Metal Box Plc Container with peelable seal & method & apparatus for making same
US5062569A (en) * 1988-08-01 1991-11-05 Hekal Ihal M Peelably sealed plastic packages and method of preparing same
US5004110A (en) * 1989-08-03 1991-04-02 Abbott Laboratories Retortable closure for plastic container
US5160391A (en) * 1991-04-15 1992-11-03 James River Ii, Inc. Method for the formation of a clamped wave seal structure
US7364779B2 (en) * 2003-09-02 2008-04-29 Sonoco Development, Inc. Easy-opening high barrier plastic closure and method therefor
DE102004032100B4 (de) * 2004-07-01 2006-06-22 Rainer Ammann Verfahren zum Ablösen bzw. Abtrennen einer auf den Rand des Halses einer Flasche od. dergl. aufgesiegelten Siegelfolie und Schraubkappen zur Ausführung dieser Verfahren
FR2889506B1 (fr) * 2005-08-03 2010-08-27 Flackpull Ampoule operculee destinee a etre remplie d'un liquide par depression et procede de fabrication correspondant
GB0708692D0 (en) * 2007-05-04 2007-06-13 Innovia Films Ltd Seelable, pealable film
ATE444849T1 (de) * 2007-06-22 2009-10-15 Selig Sealing Products Inc Verschluss für einen behälter
EP2408688B1 (de) * 2009-03-16 2013-01-09 1/4 Vin Weinglas, verfahren zur verpackung von wein und weinbehälter
US20110017772A1 (en) * 2009-07-24 2011-01-27 Alcan Packaging Beauty Services Container and Sealing Membrane for Packaging of Reactive Products
AU2011220783A1 (en) * 2010-02-26 2012-09-06 Intercontinental Great Brands Llc Package having an adhesive-based reclosable fastener and methods therefor
GB201107766D0 (en) * 2011-05-10 2011-06-22 Selig Sealing Products Inc Coloured tabbed container closure liners
US20140166682A1 (en) * 2012-12-19 2014-06-19 Sonoco Development, Inc. Container and Closure Assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011095726A1 *

Also Published As

Publication number Publication date
RU2566311C2 (ru) 2015-10-20
WO2011095726A1 (fr) 2011-08-11
US9302837B2 (en) 2016-04-05
FR2955844B1 (fr) 2012-04-27
FR2955844A1 (fr) 2011-08-05
CL2012002176A1 (es) 2013-07-12
ES2441812T3 (es) 2014-02-06
BR112012019415A2 (pt) 2016-05-03
EP2531419B1 (de) 2013-11-20
UA106648C2 (uk) 2014-09-25
PT2531419E (pt) 2014-01-29
AR080053A1 (es) 2012-03-07
BR112012019415B1 (pt) 2020-04-22
RU2012137208A (ru) 2014-03-10
US20130036715A1 (en) 2013-02-14

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