EP0274514B1 - Emballage pour articles en pieces et son procede de fabrication - Google Patents

Emballage pour articles en pieces et son procede de fabrication Download PDF

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Publication number
EP0274514B1
EP0274514B1 EP87904797A EP87904797A EP0274514B1 EP 0274514 B1 EP0274514 B1 EP 0274514B1 EP 87904797 A EP87904797 A EP 87904797A EP 87904797 A EP87904797 A EP 87904797A EP 0274514 B1 EP0274514 B1 EP 0274514B1
Authority
EP
European Patent Office
Prior art keywords
package
packing material
tearing
wrapper
areas
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
EP87904797A
Other languages
German (de)
English (en)
Other versions
EP0274514A1 (fr
Inventor
Wilfried Jud
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 EP0274514A1 publication Critical patent/EP0274514A1/fr
Application granted granted Critical
Publication of EP0274514B1 publication Critical patent/EP0274514B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • 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
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • B65D75/12—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by flattening and heat-sealing

Definitions

  • the invention relates to an essentially gas-tight package with lumpy packaging goods, in particular divided or subdividable into several parts, with a casing formed from a flat, foldable packaging material, which has at least two strip-shaped doubling areas of the packaging material, in each of which the two layers of packaging material forming the doubling area the inside of their packaging material is connected to one another via a strip-shaped sealing area, the packaging sleeve being designed to be opened at least in one of these doubling areas in order to open it.
  • the packs according to the invention are preferably not designed exclusively as tubular bag packs.
  • the invention further relates to advantageous methods for producing the pack according to the invention.
  • a pack of this type is described in European patent application 85104700.1 (publication no. 0162291) with reference to FIG. 3.
  • This package which is a tubular bag package for packaging chocolate, has a fold that starts from the packaging envelope in the region of a chocolate bar division notch and that runs along one within the strip-shaped region in which the two fold flanks are connected to one another by a seal Line of weakness has a plurality of separate line-shaped punchings.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of displaying a package of the type mentioned, but which can now be opened in such a simple manner that the original shape of the package is not significantly changed when packaging is removed and which can also be used for relatively soft packaging goods.
  • the invention further relates to two advantageous methods for producing the pack according to the invention.
  • Figures 1 and 2 each illustrate in sectional views the manufacture of a preferred embodiment of the package according to the invention in the form of a tubular bag pack before forming the packaging material hose.
  • the folds 2, 3 are attached in such a way that the two mentioned weakening lines 4 (running perpendicular to the plane of the drawing in FIG. 1) come to rest on the inner flank flank (see FIG. 1).
  • the folds 2, 3 are then folded over onto the plane of the packaging material web 1 in such a way that the fold flanks which contain the weakening lines 4 do not lie against the packaging surface (see FIG. 2).
  • the packaging material web 1 thus provided with the two folds 2, 3 in its longitudinal direction (i.e. perpendicular to the plane of the drawing in FIG. 2) is now used in the usual way to form a packaging material tube around the successively supplied packaging items, e.g. Chocolate bars 5, folded over in the direction of arrows 6 around the packaged goods, after which the edge regions of the packaging material web on the underside 7 of the chocolate bars 5 are connected to form a longitudinal sealing seam and the fin formed by this longitudinal sealing seam is then folded onto the surface of the tube.
  • the packaging material tube enclosing the chocolate bars 5 is now provided with two transverse sealing seams running parallel to each other between two successive chocolate bars and divided into individual packages by separating cuts between these two transverse sealing seams.
  • FIG. 3 shows the longitudinal sealing seam 8 folded over on the packaging surface and the fin 10 produced by a transverse sealing seam 9. Between the free edge 11 of this fin 10 and the strip-shaped sealing region 12 of the transverse sealing seam 9 there is a strip-shaped area 13 with a width of about 3 to 8 mm, in which the packaging material tube is only compressed. From Fig. 3 can also be seen the two folds 2, 3 folded over on the pack surface, the outer fold edges of which each end with the two side edges 14, 15 of the pack. The two weakening lines 4 and the free edge 17 between the ends 16 of these weakening lines of the packaging material layer of the fin 10 located at the top in FIG. 4 thus delimit a tear-open area 18 of the packaging envelope on three sides.
  • the packaging material layer of the fin 10 at the bottom in FIG. 3 is held at 19 with one hand and the upper packaging material layer containing the tear-open area 18 is grasped at its free edge 17 with the other hand and pulled in the direction of the arrow 20.
  • the edges of the tear-open area 18 are peeled off from the remaining parts of the folds 2, 3 on the two folds 2, 3 while the packaging material is torn at the weakening lines 4, with the seal fixing these folds being separated.
  • Fig. 4 shows the pack in an analog representation as in Fig. 3; but now in a half-open condition.
  • a three-layer packaging material is used - starting from the outside of the package - made of 0.012 to 0.015 mm thick film made of biaxially stretched polypropylene (OPP), a 0.008 to 0.009 mm thick aluminum film with a decorative print on the outside , a paper with a grammage of 40 to 60 g / m 2 and a latex-based cold adhesive coating preferably applied in the profile (for example approx. 3 g / m 2 solid).
  • the weakening lines each consist of a plurality of line-shaped punchings arranged one after the other in the course of the weakening line and separated from one another. These line-shaped punchings can, however, also be attached to the packaging machine immediately before the folds 2, 3 are formed in the packaging material web with the aid of a suitable device in the manufacture of the packaging material web.
  • a packaging material web 22 is provided in the packaging machine, which is provided on one side with a sealing layer applied in the profile, but which, in contrast to the pack variant according to the figures 1 to 4 has no lines of weakness, is pulled off the roll and, in the same way as described with reference to FIGS. 1 and 2, two folds 23 and 24 are continuously formed in it (see FIG. 5). Subsequently, a fold length extension is made at the fold edges, i.e. in Fig. 5 perpendicular to the plane of the strip-shaped area 25 of the fold 23 or 24, which is shown in Fig.
  • the packaging material web 22 thus provided with doubling regions 23 'and 24' is now used, analogously to that described with reference to FIG. 2, to produce a tubular bag pack for chocolate bars 5.
  • FIG. 7 shows the tubular bag package thus produced in a partial perspective view.
  • 7 also shows the two doubling regions 23 'and 24' which have been folded over onto the packaging surface.
  • the packaging material layer of the fin 10 'at the bottom in FIG. 7 is held at 19' with one hand and the upper packaging material layer containing the tear-open area 26 is grasped at its free edge 17 'with the other hand and in the direction of the arrow Deducted 20 '.
  • the sealing connections of the two doubling areas 23 'and 24' are peeled off.
  • this pack is in an analog representation as in Fig. 7; but now in a half-open state, i.e. in which a part of the tear-open area 26 has already been drawn off.
  • a very simple packaging material is used, which, starting from the outside of the pack, consists of a decorative print, a metallization, a 0.02 to 0.04 mm thick OPP film and a latex-based calf adhesive coating (e.g. 3 g / m 2 Solid).
  • the doubling regions 23 ′, 24 ′ which have been folded over onto the packaging surface can be connected to the packaging surface by gluing or welding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Cartons (AREA)
  • Electroluminescent Light Sources (AREA)
  • Secondary Cells (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Container Filling Or Packaging Operations (AREA)

Claims (11)

1. Emballage contenant un produit en pièces, en parti culier un produit divisé ou susceptible d'être divisé en plusieurs morceaux, comportant une enveloppe constituée par un matériau d'emballage plat pliable, qui présente au moins deux zones en forme de bande surépaissies dont les faces internes des couches de matériau d'emballage formant la zone surépaissie sont reliées par l'intermédiaire d'une zone de scellement ou de soudure en forme de bande, l'enveloppe d'emballage étant destinée à être ouverte par rupture à l'emplacement d'au moins une de ces zones surépaissies ou de doublage, caractérisé en ce que l'enveloppe d'emballage qui comporte une zone superficielle au moins approximativement plane, présente sur cette zone superficielle -distinctes l'une de l'autre- deux desdites zones surépaissies ou de doublage (2, 3; 23', 24') qui limitent latéralement une zone (18, 26) d'ouverture par déchirure de l'enveloppe d'emballage.
2. Emballage selon la revendication 1, caractérisé en ce que les deux zones (2, 3; 23', 24') surépaissies ou de doublage sont disposées à proximité de deux bords opposés (14, 15) de la zone superficielle, au moins approximativement plane, de l'emballage.
3. Emballage selon la revendication 1 ou 2, caractérisé en ce que la zone (26) d'ouverture par déchirure est limitée latéralement par les bords extérieurs des zones de doublage (23', 24') limitant la zone (26) d'ouverture par déchirure.
4. Emballage selon la revendication 1 ou 2, caractérisé en ce que la zone (18) d'ouverture par déchirure est limitée latéralement par des emplacements (4) de rupture de forme linéaire pratiqués dans le matériau d'emballage, lesquels sont disposés dans chaque cas dans les couches dirigées vers l'extérieur des zones de doublage (2, 3) limitant la zone (18) d'ouverture par déchirure, et à l'intérieur de leurs zones de soudure en forme de bande.
5. Emballage selon une quelconque des revendications 1 à 4, caractérisé en ce que les zones de doublage (2,3; 23', 24') sont repliées dans chaque cas dans la direction s'éloignant du centre de la zone d'ouverture par déchirure, sur la surface de l'emballage.
6. Emballage selon la revendication 5, caractérisé en ce que les couches de matériau d'emballage des zones de doublage repliées, appliquées contre la surface de l'emballage, sont reliées à la surface de l'emballage au moins sur une partie de leur surface par collage ou par soudure.
7. Emballage selon une quelconque des revendications 1 à 6, caractérisé en ce que l'emballage est du type pochette tubulaire comportant une soudure longitudinale (8, 8') et deux soudures transversales (9, 9') formant des ailes (10, 10') de l'emballage, les deux zones de doublure (2, 3; 23, 24) limitant latéralement la zone (18, 26) d'ouverture, s'étendent parallèlement à la soudure longitudinale (8, 8') et coupent la zone de soudure d'au moins une des soudures transversales (9, 9') et la zone d'ouverture par déchirure étant limitée par le bord libre (11, 11') d'au moins une des ailes (10, 10').
8. Emballage selon la revendication 7, caractérisé en ce que, sur une aile (10,10') de l'emballage dont le bord libre (11, 11') forme la limite de la zone d'ouverture par déchirure, la soudure transversale (9, 9'), au moins dans la zone située entre les extrémités des deux zones de doublage (2, 3; 23', 24') ne s'étend pas jusqu'au bord libre (11, 11').
9. Emballage selon une quelconque des revendications 4 à 8, caractérisé en ce que les zones de doublage (2, 3) sur lesquelles des emplacements (4) de rupture de forme linéaire situés dans le matériau d'emballage forment des limites latérales pour la zone (18) d'ouverture par déchirure, sont des plis formés sur la surface de l'emballage.
10. Procédé de fabrication d'un emballage selon une des revendications 1 à 3 ainsi que 5 à 8, caractérisé en ce qu'on forme, dans le matériau d'emballage, deux plis distincts l'un de l'autre, leurs flancs étant dans chaque cas reliés entre eux par soudure dans une zone de soudure en forme de bande, en ce que, sur les bords des plis, on découpe une zone en forme de bande du pli s'étendant dans le sens longitudinal des plis, de façon telle que le matériau restant des plis forme des zones de doublage du matériau d'emballage dont les couches de matériau d'emballage présentent des bords extérieurs qui forment dans le matériau d'emballage la limite latérale d'une zone d'ouverture par déchirure du matériau d'emballage, puis que les deux zones de doublage sont repliées sur la surface de l'emballage et qu'ensuite l'enveloppe d'emballage est fabriquée à partir du matériau d'emballage ainsi préparé.
11. Procédé de fabrication d'un emballage selon la revendication 9, caractérisé en ce qu'on prévoit dans le matériau d'emballage deux emplacements de rupture volontaire de forme linéaire disposés à l'écart l'un de l'autre, en ce que l'on forme à l'endroit de ces emplacements de rupture volontaire, dans chaque cas, un pli dans le matériau d'emballage, dont les flancs sont dans chaque cas reliés par soudure dans une zone de soudure en forme de bande, de façon telle que dans chaque cas les emplacements de rupture volontaire sur l'un des flancs des plis se trouvent à l'intérieur de la zone de soudure en forme de bande, en ce que les deux plis sont repliés sur l'enveloppe d'emballage et, qu'ensuite, on fabrique l'enveloppe d'emballage à partir du matériau d'emballage ainsi préparé.
EP87904797A 1986-07-22 1987-07-22 Emballage pour articles en pieces et son procede de fabrication Expired - Lifetime EP0274514B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0197486A ATA197486A (de) 1986-07-22 1986-07-22 Packung mit stückigem verpackungsgut sowie verfahren zum herstellen solcher packungen
AT1974/86 1986-07-22

Publications (2)

Publication Number Publication Date
EP0274514A1 EP0274514A1 (fr) 1988-07-20
EP0274514B1 true EP0274514B1 (fr) 1990-07-11

Family

ID=3525080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87904797A Expired - Lifetime EP0274514B1 (fr) 1986-07-22 1987-07-22 Emballage pour articles en pieces et son procede de fabrication

Country Status (5)

Country Link
US (2) US4917247A (fr)
EP (1) EP0274514B1 (fr)
AT (2) ATA197486A (fr)
FI (1) FI84458C (fr)
WO (1) WO1988000562A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000331A1 (de) * 2009-01-20 2010-07-22 Robert Bosch Gmbh Schlauchbeutelverpackung für tafelförmiges Stückgut

Also Published As

Publication number Publication date
FI84458B (fi) 1991-08-30
WO1988000562A1 (fr) 1988-01-28
FI881323A (fi) 1988-03-21
FI84458C (fi) 1991-12-10
US4917247A (en) 1990-04-17
FI881323A0 (fi) 1988-03-21
ATA197486A (de) 2001-05-15
US5100003A (en) 1992-03-31
ATE54432T1 (de) 1990-07-15
EP0274514A1 (fr) 1988-07-20

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