EP0745539B1 - Verfahren zur herstellung einer leicht zu öffnenden verpackung für produkte wie lebensmittel - Google Patents

Verfahren zur herstellung einer leicht zu öffnenden verpackung für produkte wie lebensmittel Download PDF

Info

Publication number
EP0745539B1
EP0745539B1 EP19960303802 EP96303802A EP0745539B1 EP 0745539 B1 EP0745539 B1 EP 0745539B1 EP 19960303802 EP19960303802 EP 19960303802 EP 96303802 A EP96303802 A EP 96303802A EP 0745539 B1 EP0745539 B1 EP 0745539B1
Authority
EP
European Patent Office
Prior art keywords
film
article
packaging
heat
foodstuff
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.)
Expired - Lifetime
Application number
EP19960303802
Other languages
English (en)
French (fr)
Other versions
EP0745539A1 (de
Inventor
Jean-Pierre Faivre
Guy Desveaux
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.)
Cryovac LLC
Original Assignee
Cryovac LLC
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 Cryovac LLC filed Critical Cryovac LLC
Publication of EP0745539A1 publication Critical patent/EP0745539A1/de
Application granted granted Critical
Publication of EP0745539B1 publication Critical patent/EP0745539B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture

Definitions

  • the present invention relates to a method of making a packing for an article such as a foodstuff, which may be easily opened (see particularly US-A-3 641 732).
  • the present invention proposes a packing for an article permitting easy opening thereof while preserving the vacuum or the modified atmosphere therein as long as the packing is not opened.
  • the invention will be described as applied to a packaging for an article under vacuum but it is well understood that it also applies to any other type of article packing such as that containing a modified atmosphere as will be described subsequently.
  • the reference numeral 1 designates a packaging bag made from a synthetic film of a heat-shrinkable thermoplastic material, one end of which is hermetically closed by a transverse welded seam 2.
  • An article 3 such as a food product is inserted into the packaging bag 1 and the whole is brought into a machine for providing the vacuum within the bag 1 and then the other end of the bag 1 is hermetically closed by a second transverse welded seam 4 and cut off to the desired length of the bag 1.
  • the whole thus formed is then brought into a hot air tunnel or a hot water bath at a predetermined temperature for heat-shrinking the film of the bag 1 so that the latter tightly wraps the article 3.
  • the packaging bag 1 in its initial state i.e. before being heat-shrunk comprises a zone 5 hermetically isolated from the remainder of the film of the bag 1 and extending from a longitudinal edge 1a of the bag 1.
  • the zone 5 is hermetically isolated by welding opposed faces of the film over the whole area of the zone 5 whereas according to an alternative embodiment shown on Figure 3 this zone 5 is hermetically isolated by welding opposed faces of the film 1 along only the periphery 6 of the zone 5.
  • a cut 7 is made in the hermetically isolated zone 5 inwards starting from the edge 1a of the bag 1.
  • the hermetically isolated zone 5 is distinct from a welded portion 2, 4 of the bag 1 and this zone is located near a welded seam, in the present case the end seam 2.
  • the hermetically isolated zone 5 and the cut 7 are described hereinabove as being formed in the packaging bag 1 intended subsequently to receive an article 3 but they may be made during or after the steps of evacuating the bag 1 and of welding and severing the latter, the essential point being that they be formed before the step of heat-shrinking the film forming the bag 1.
  • the cut 7 may be carried out by any suitable means for example by a mechanical cutting means either automatically during the making of the bag 1 or during the steps of packing the article 3 prior to the heat-shrinking operation or manually with the assistance of a cutting tool before the heat-shrinking step.
  • the films used for this type of packaging are preferably of the barrier film type known per se with a core layer forming an oxygen barrier and for example based upon a copolymer of ethylene and of vinyl alcohol, or upon polyvinyl alcohol or upon polyvinylidenechloride (PVDC).
  • a core layer forming an oxygen barrier and for example based upon a copolymer of ethylene and of vinyl alcohol, or upon polyvinyl alcohol or upon polyvinylidenechloride (PVDC).
  • the packaging which has just been described therefore permits the opening of the packaging to be facilitated while guaranteeing a total protection of the vacuum or of the modified atmosphere in the packaging as long as the packaging has not been opened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Vacuum Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Claims (3)

  1. Verfahren zur Herstellung einer Verpackung für einen Artikel wie ein Nahrungsmittel, bei dem der Artikel (3) in Folie (1) aus wärmeschrumpfbarem Material eingewickelt wird, die Folie (1) über mindestens einem Abschnitt ihres Randbereichs verschweißt wird und nachfolgend die Folie (1) wärmegeschrumpft wird, wobei die Verpackung mit einer Randzone (5), die von dem Rest der Folie (1) durch einen Bereich isoliert ist, bei dem gegenüberliegende Seiten der Folie miteinander verschweißt werden, und mit einem vollständig innerhalb der Randzone (5) liegenden Schnitt (7) gebildet wird, der sich von einem Rand (1a) der Folie aus nach Innen erstreckt, dadurch gekennzeichnet, dass die hermetisch isolierte Zone (5) verschieden von und neben dem oder jedem geschweißten Abschnitt (2; 4) des Randbereichs der Folie (1) angeordnet ist, wodurch sich bei Wärmeschrumpfung der Folie (1) um einen eingewickelten Artikel (3) eine Zunge (8) zur Erleichterung des Öffnens bildet.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Folie (1) vor dem Verschweißen der Folie (1) über mindestens einem Abschnitt ihres Randbereichs evakuiert wird.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Atmosphäre innerhalb der Folie (1) vor dem Verschweißen der Folie (1) über mindestens einem Abschnitt ihres Randbereichs modifiziert wird.
EP19960303802 1995-05-29 1996-05-29 Verfahren zur herstellung einer leicht zu öffnenden verpackung für produkte wie lebensmittel Expired - Lifetime EP0745539B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9506325 1995-05-29
FR9506325A FR2734792B1 (fr) 1995-05-29 1995-05-29 Emballage d'article, tel que produit alimentaire, pouvant etre facilement ouvert et procede de realisation d'un tel emballage.

Publications (2)

Publication Number Publication Date
EP0745539A1 EP0745539A1 (de) 1996-12-04
EP0745539B1 true EP0745539B1 (de) 2002-01-23

Family

ID=9479436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960303802 Expired - Lifetime EP0745539B1 (de) 1995-05-29 1996-05-29 Verfahren zur herstellung einer leicht zu öffnenden verpackung für produkte wie lebensmittel

Country Status (6)

Country Link
EP (1) EP0745539B1 (de)
BR (1) BR9602512A (de)
CA (1) CA2177557A1 (de)
DE (1) DE69618714T2 (de)
FR (1) FR2734792B1 (de)
MX (1) MX9602024A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6889483B2 (en) 2002-10-31 2005-05-10 Cryovac, Inc. Easy-opening feature for flexible packages and process and apparatus for forming same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69837082T2 (de) * 1998-05-11 2007-11-22 Cryovac, Inc. Leicht zu öffnende Anordnung an einem gasdichten, geschrumpften Beutel
EP1081060A1 (de) * 1999-08-20 2001-03-07 Elsaesser Verpackungen Ag Verpackungsbeutel mit Aufreisskerbe
US6260705B1 (en) 1999-11-15 2001-07-17 Cryovac, Inc. Heat shrinkable pouch
EP1291292A3 (de) * 2001-08-31 2003-12-10 Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH & Co. KG. Schlauchbeutel aus innen- und/oder aussen-siegelnder Folie
US20110084077A1 (en) * 2006-01-18 2011-04-14 Robert William James A polymer bag
CA2673136C (en) 2008-07-18 2016-09-06 Cryovac Australia Pty Ltd A bag of a heat-shrinkable gas-barrier thermoplastic film
EP2810894A1 (de) * 2013-06-03 2014-12-10 Philip Morris Products S.A. Bahnmaterial mit Lasche

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1557778A (de) * 1967-11-28 1969-02-21
DE1586766A1 (de) * 1967-12-21 1970-05-21 Kalle Ag Beutelverpackung
US3641732A (en) * 1970-03-05 1972-02-15 Masaaki Fujio Method of packaging packs or articles with a heat-shrinking material
FR2142833A1 (en) * 1971-06-25 1973-02-02 Ims Ltd Sealed flexible bag - for aseptic storage esp hypodermic syringe and accessories
AU597130B2 (en) * 1986-12-23 1990-05-24 David Graham Ellis Improvements in packages
GB8710135D0 (en) * 1987-04-29 1987-06-03 Du Pont Canada Easy-open pouches
US5060803A (en) * 1991-01-17 1991-10-29 Beer Jeffrey S Gussetted flexible package with tear notch to form pour spout

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6889483B2 (en) 2002-10-31 2005-05-10 Cryovac, Inc. Easy-opening feature for flexible packages and process and apparatus for forming same
US7021827B2 (en) 2002-10-31 2006-04-04 Cryovac, Inc. Easy-opening feature for flexible packages and process and apparatus for forming same

Also Published As

Publication number Publication date
DE69618714D1 (de) 2002-03-14
FR2734792B1 (fr) 1997-07-18
FR2734792A1 (fr) 1996-12-06
EP0745539A1 (de) 1996-12-04
DE69618714T2 (de) 2002-06-13
BR9602512A (pt) 1998-09-08
MX9602024A (es) 1997-08-30
CA2177557A1 (en) 1996-11-30

Similar Documents

Publication Publication Date Title
US4705174A (en) Sealed flexible container with non-destructive peelable opening
US4576285A (en) Sealed flexible container with non-destructive peelable opening and apparatus and method for forming same
US5533622A (en) Peelable barrier layer VSP package, and method for making same
US4667453A (en) Method of forming sealed flexible container with non-destructive peelable opening
AU730200C (en) Hermetically sealed package, and method and machine for manufacturing it
JP4184807B2 (ja) 包装物品および物品包装方法
US3127273A (en) Methqd for continuously wrapping biscuits
EP0830289A1 (de) Verfahren zum schrumpfen einer folie zum anbringen einer deckelfolie und verpackung
WO1993024388A1 (en) Wrapping material and method of wrapping
EP0745539B1 (de) Verfahren zur herstellung einer leicht zu öffnenden verpackung für produkte wie lebensmittel
US5806280A (en) Easy open method, package, and apparatus
MXPA96002024A (en) Packaging for an article as a food substance that can be opened easily and method to produce this packaging
CA1077385A (en) Shrink wrappings
EP0150554A1 (de) Verfahren und Vorrichtung zum Verpacken in flexible warm-schrumpffähige Verpackungen
US3892057A (en) Packaging method and apparatus
EP0665173A1 (de) Leicht zu öffnende thermoschrumpfbare Verpackung
JP3628499B2 (ja) 易開封性熱収縮包装を行うためのフィルム溶着・溶断装置
JPH06270954A (ja) シュリンク包装材、その製造方法およびその包装材を用いた包装体
GB2062573A (en) Shrink wrapping process and shrink wrapped package
JPH03200529A (ja) 物品の包装方法
JPH02191127A (ja) 収縮包装方法および収縮包装装置
JPH08175567A (ja) 易開封包装体
JPH09165014A (ja) 熱収縮フィルムによる易開封性熱収縮包装用溶断装置
JPH05319452A (ja) 熱収縮包装方法
JPH07232784A (ja) 包装体

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT NL

17P Request for examination filed

Effective date: 19970430

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: W.R. GRACE & CO.-CONN.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CRYOVAC, INC.

17Q First examination report despatched

Effective date: 20000118

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)

Free format text: METHOD OF MAKING AN EASILY OPENABLE PACKING FOR AN ARTICLE SUCH AS A FOODSTUFF

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT NL

REF Corresponds to:

Ref document number: 69618714

Country of ref document: DE

Date of ref document: 20020314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020730

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20060503

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060524

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060525

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060531

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20071201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070529