EP1840029A2 - Procédé de mise en paquet d'unités d'emballages sous blister - Google Patents

Procédé de mise en paquet d'unités d'emballages sous blister Download PDF

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Publication number
EP1840029A2
EP1840029A2 EP20070005906 EP07005906A EP1840029A2 EP 1840029 A2 EP1840029 A2 EP 1840029A2 EP 20070005906 EP20070005906 EP 20070005906 EP 07005906 A EP07005906 A EP 07005906A EP 1840029 A2 EP1840029 A2 EP 1840029A2
Authority
EP
European Patent Office
Prior art keywords
sealing
film
packaging
layer
wrapping
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Withdrawn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
EP20070005906
Other languages
German (de)
English (en)
Inventor
Bernd Dr. Sperlich
Willi Schwarz
Andreas Oelfke
Marco Ahlswede
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.)
Wipak Walothen GmbH
Original Assignee
Wipak Walothen 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
Application filed by Wipak Walothen GmbH filed Critical Wipak Walothen GmbH
Publication of EP1840029A2 publication Critical patent/EP1840029A2/fr
Withdrawn legal-status Critical Current

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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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58—Applying two or more wrappers, e.g. in succession
    • 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
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/02—Packaging cigarettes
    • B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages

Definitions

  • the invention relates to a method for bundling foil-packed packaging units as well as a wrapping packaging film and a packaging unit made of a plurality of film-wrapped individual packages, which is preferably stranded, block or rod-shaped.
  • packaging films mono- or biaxially oriented polyolefin films, for. B. BOPP films. These films are sealable with each other, so that the problem described above occurs as soon as the (strand) wrapping film and the individual packaging films (packet wrapping film) come to lie directly against each other.
  • a cardboard liner which stabilizes the packaging bar at the same time.
  • the cardboard liner requires additional labor and cost.
  • the object of the invention is therefore to provide a method for bundling foil-packed individual parcels with an inexpensive wrapping film, in which the wrapping film for the outer packaging can be placed directly around the individual parcels without it sticking to the individual parcels during sealing.
  • an a / a or an a / b seal can be made.
  • a simple a / b seal is chosen, in which the wrapping film is wrapped around the packet strand overlapping, so that the inside of the wrapping film partially (inter alia along a longitudinal seam forming edge) comes to rest on the outside of the underlying film layer and sealed there in the overlap area.
  • an a / a seal may be made by sealing the inside against the inside of the wrapping film, for example, by turning the underlying film edge outwards to form a fin seam. In both Cases are sealed in the film overlap area from the outside (one-sided) with a sealing shoe at a suitable (sealing shoe) temperature and sealing time.
  • the sealing temperature for a / a or a / b sealing of the wrapping film is at least 15 ° C below the sealing temperature, which is for sealing the outer cover layer of the first packaging film with the inside of the wrapping film.
  • This sealing temperature window is large enough to allow a reliable process on packaging machines.
  • the sealing temperature is high enough to allow the film to self-seal prematurely / airtight with a / a seal, with one early-seal layer on one side of the wrapping film, or two-sided early sealant layer on the wrapping film and a / b seal - or sealed against a "normal seal” usual sealant layer, and small enough that the film is not sealed with the single packaging film.
  • the sealing temperature between the outer layers of the wrapping film should preferably be between 50 and 100 ° C, while the sealing temperature, which would cause a seal between wrapping film and outer cover layer of the first packaging film should preferably be between 70 and 130 ° C.
  • the early sealing layer (s) of the wadding film has a melting point (DSC) between 50 and 110 ° C.
  • the cover layer of the first packaging film is a film based on one or more ⁇ -olefin polymers and is preferably mono- or biaxially oriented.
  • polyolefin-based and corresponding expressions shall mean that the skilled artisan would view the corresponding film substantially as a polyolefin film and that these films consist essentially of polyolefin components, other polymers may be present in minor amount.
  • the individual packaging films are within the outer packaging BOPP films.
  • the early-sealing layer or layers of the wrapping film consists essentially of a copolymer or a mixture of several copolymers, which may consist essentially of one or more comonomers of the following group: ethene, propene, butene, pentene, vinyl acetate.
  • the invention is based on the idea to use as sealing layer (s) for the outer packaging also polyolefins, which basically seal with standard BOPP and similar films, but allow a lower sealing temperature at which the inner film is not yet sealed.
  • sealing layer s
  • polyolefins which basically seal with standard BOPP and similar films, but allow a lower sealing temperature at which the inner film is not yet sealed.
  • a packaging film having an outer, polyolefin-based, at least one-sided, outer sealing layer, which has a melting point (DSC) between 50 and 110.degree. C. and is early-sealing compared to standard BOPP films.
  • DSC melting point
  • the film may preferably have early sealing layers on both outer sides. However, it may also possess the early-sealable sealing layer only on one side and on the opposite side no sealing layer (if only a / a-sealing is provided) or a normally sealed sealing layer.
  • the wrapping packaging film on the opposite side of the early sealant sealing layer has a polyolefin-based normal sealer sealing layer, which satisfies the condition that the sealing temperature for an a / b seal between early gliding and normal sealing side at least 15 ° C is less than would be required for a seal between the normal-sealing side with itself.
  • Figure 1 illustrates the situation for the application of the direct bar impact (rod packaging total designated 10) cigarette packets 20.
  • the cardboard liner is increasingly omitted here, so that the rod wrapping film 1 is directly on the packet wrapping film 2.
  • an a / b seal is chosen so that the inside 11 of the wrapping film 1 is sealed to the outside 12 of the same film.
  • sealing the wrapping / wrapping film is ensured by setting the sealing temperature and time, while the sealing temperature at which the inside 11 of the wrapping film would seal with the packet wrapping film 2 would be outside the selected one Sealed temperature window is located.
  • a PP film of thickness 1100 ⁇ m is extruded and longitudinally stretched by a factor of 5. Subsequently, separately produced films of thickness 15 ⁇ m are thermally laminated on both sides and the film composite is crossed by a factor of 10. The total thickness of the film is after the transverse stretch 25 microns.
  • the sealing layer thickness is 1.5 ⁇ m in each case example Composition page 1
  • Sealing temperature sealing temperature at a sealing pressure of 50 N / cm 2 and a sealing time of 0.5 s. At the seal initiation temperature, the film ruptures upon mounting the sealed seam.
  • the outer layer of the packaging is early-sealing (according to the above table: page 1).
  • the inside (according to the table: page 2) is in contact with the sachet foil and can be early-seal or normal-seal.
  • the sealing temperature page 1 against page 2 must be lower than the sealing temperature page 2 against "normal sealing" or standard BOPP. This results in the sealing temperature window for the outer wrapping foil, which in is at least 20 ° C in all three examples. This temperature window is large enough to allow a reliable process on packaging machines. Within this window, the sealing temperature is high enough for the film to seal against itself and small enough that the film is not sealed with the inner wrap film.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
EP20070005906 2006-03-31 2007-03-22 Procédé de mise en paquet d'unités d'emballages sous blister Withdrawn EP1840029A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610015543 DE102006015543A1 (de) 2006-03-31 2006-03-31 Verfahren zur Bündelung folienverpackter Verpackungseinheiten

Publications (1)

Publication Number Publication Date
EP1840029A2 true EP1840029A2 (fr) 2007-10-03

Family

ID=38289954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070005906 Withdrawn EP1840029A2 (fr) 2006-03-31 2007-03-22 Procédé de mise en paquet d'unités d'emballages sous blister

Country Status (2)

Country Link
EP (1) EP1840029A2 (fr)
DE (1) DE102006015543A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011124926A2 (fr) 2010-04-06 2011-10-13 Innovia Films Limited Emballage d'assemblage à nu
EP2520428B1 (fr) 2011-05-06 2016-08-03 Irplast S.p.A. Films multicouches
US9944418B2 (en) 2007-08-23 2018-04-17 Innovia Films, Ltd. Naked collation package
EP3034300B1 (fr) 2014-12-19 2018-08-22 Irplast S.p.A. Films multicouches
EP2714398B1 (fr) 2011-06-02 2019-11-20 Innovia Films Limited Procédé de formation d'une emballage à collation dépouillée et emballage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9944418B2 (en) 2007-08-23 2018-04-17 Innovia Films, Ltd. Naked collation package
US10173796B2 (en) 2007-08-23 2019-01-08 Innovia Films, Ltd Naked collation package
WO2011124926A2 (fr) 2010-04-06 2011-10-13 Innovia Films Limited Emballage d'assemblage à nu
EP2520428B1 (fr) 2011-05-06 2016-08-03 Irplast S.p.A. Films multicouches
EP2714398B1 (fr) 2011-06-02 2019-11-20 Innovia Films Limited Procédé de formation d'une emballage à collation dépouillée et emballage
EP3034300B1 (fr) 2014-12-19 2018-08-22 Irplast S.p.A. Films multicouches

Also Published As

Publication number Publication date
DE102006015543A1 (de) 2007-10-04

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