EP0383020B1 - Sac - Google Patents

Sac Download PDF

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Publication number
EP0383020B1
EP0383020B1 EP90100656A EP90100656A EP0383020B1 EP 0383020 B1 EP0383020 B1 EP 0383020B1 EP 90100656 A EP90100656 A EP 90100656A EP 90100656 A EP90100656 A EP 90100656A EP 0383020 B1 EP0383020 B1 EP 0383020B1
Authority
EP
European Patent Office
Prior art keywords
film
bag according
film bag
beads
side walls
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
EP90100656A
Other languages
German (de)
English (en)
Other versions
EP0383020A2 (fr
EP0383020B2 (fr
EP0383020A3 (en
Inventor
Rainer Dr. Wild
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.)
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Original Assignee
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6835043&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0383020(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG filed Critical INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Priority to AT90100656T priority Critical patent/ATE87874T1/de
Publication of EP0383020A2 publication Critical patent/EP0383020A2/fr
Publication of EP0383020A3 publication Critical patent/EP0383020A3/de
Publication of EP0383020B1 publication Critical patent/EP0383020B1/fr
Application granted granted Critical
Publication of EP0383020B2 publication Critical patent/EP0383020B2/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
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/007—Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S383/00—Flexible bags
    • Y10S383/904—Filling tube

Definitions

  • the invention relates to a film bag made of a heat-sealable or weldable plastic film for holding liquid and / or pasty media with two side walls forming surface parts which are sealed to one another at their longitudinal edges and at the lower cant and which form a removal opening at the upper end .
  • Such bags made of plastic films are particularly suitable as disposable packaging for beverages, e.g. known from the German utility model G 88 07 593.1. Usually, these are tapered packagings with a filling volume of 0.2 I.
  • the foils used in such beverage packaging have a thin aluminum foil layer, which, among other things, stabilizes the packaging.
  • Such foil bags are usually designed as stand-up bags.
  • a base is incorporated into the underside so that the bag can be placed on a base even after it has been opened, without the contents of the bag running out of the removal opening or the bag tipping over.
  • the removal opening can be predetermined by a predetermined puncture opening through which a straw tapering at its end can be pierced.
  • liquid or pasty media for example liquid detergents
  • plastic bags are mainly used as refill packs.
  • a fundamental advantage of the film bags can be seen in the fact that they can be folded up very flat in the unfilled state and thus take up little space.
  • Such foil bags are filled automatically with liquid or pasty media.
  • the foil bag is set up with its removal opening and a filler neck is inserted into the removal opening. After the film bag is filled, the removal opening is welded or sealed.
  • the film bags are filled fully automatically at high speed, it has proven to be problematic to open the removal opening or pouring spout in such a way that the filler neck can be inserted, since the film walls are often used for gluing tend.
  • the object of the invention is to provide a film bag whose removal opening or pouring spout can be opened easily for filling and which is particularly suitable for automatic filling.
  • the beads which face each other in the area of the removal opening in the side walls, form an opening which is also present in the folded-up film bag.
  • This opening has the great advantage that air can penetrate into the interior of the container from the moment in which the opening process is initiated, for example by suction devices positioned laterally in the region of the removal opening, in that the suction devices try to pull the two side walls apart. Because it is then possible for air to penetrate through the bead when pulling apart, the suction cups can open the removal opening further because the side walls in the area of the removal opening then no longer tend to stick. It is also conceivable to introduce a filler neck in the area of the removal opening, which filler neck may be correspondingly thin or tapered at its end.
  • One bead in the opposite side walls has the advantage that a small depth of the beads is sufficient to obtain a sufficiently large opening through the two beads. Such an opening could also be achieved if a bead were only formed in one side wall, but this bead would have to run correspondingly lower, which can lead to problems when welding the removal opening. If necessary, the extension of the film bag, which bidlet the removal opening, can be made correspondingly longer, the beads being introduced into the extended part. Such a film bag can then be welded below the beads so that the extended area containing the beads can then be cut off.
  • the beads should run parallel to the sealed longitudinal edges of the side walls, so that when the foil bag is standing vertically, a filler insert can enter the opening formed by the beads vertically.
  • a length of the beads from 10 mm to 50 mm has proven to be sufficient, the length preferably being in the range from 10 mm to 30 mm.
  • Each of the beads should have the shape of a gutter, whereby the width of the respective beads should preferably be 5 mm to 10 mm, at least in the case of only one channel in each side wall.
  • each side wall should be congruent, but in mirror image three embroideries, the space or opening then formed between the side walls in the area of the opposite beads having the shape of a diamond. All the beads should run essentially parallel to one another, a width of about 0.5 mm to 1 mm being sufficient for each bead. In such a configuration of the removal opening, the central bead runs with its opening to the inside, i.e. towards the opposite side wall, while the two beads running to the left and right of this central bead form a groove on the outside of the film bag. If several individual beads are made, they should have a maximum distance of 5mm to 10mm.
  • the beads have a shape in the longitudinal direction, i.e. in the direction of the longitudinal seams, such that they together form a funnel, i.e. these beads widen towards the end of the film bag or taper to the lower area of the film bag, a length of the beads between 10 mm and 50 mm being sufficient here as well.
  • the film bag can be designed as a stand-up pouch, for which purpose a foldable bottom part, which lies between the side walls, is inserted between the lower transverse edges of the side walls.
  • a stand-up pouch has the advantage that it stabilizes with increasing filling and stands up on the stand base without any auxiliary measures.
  • the beads can be inserted into the film blanks with a heated stamp before the side walls are welded or sealed.
  • the film bag is preferably produced from a two-layer, heat-sealable composite film.
  • a polyethylene film facing the interior and a polyester film forming the outer skin Excellent properties are achieved by a polyethylene film facing the interior and a polyester film forming the outer skin.
  • a polyethylene film in the form of a coextrusion film - this is a multi-layer film - offers the advantage that the film that forms the inner wall of the bag can be adapted according to the use of the stand-up pouch and the given requirements.
  • the side of the film to be sealed can be designed to be particularly seal-friendly and embossed;
  • a higher stiffness can be achieved with such a coextrusion film by changing the composition.
  • the thickness of the outwardly directed polyester film is at least 10 ⁇ m, preferably 12 ⁇ m, while the inwardly directed polyethylene film or coextrusion film has a thickness of 80 ⁇ m to 200 ⁇ m, preferably a thickness of 100 to 150 ⁇ m should have.
  • the bag assumes an almost cylindrical shape when filled.
  • the two side walls are rectangular and sealed together on the long sides.
  • the bottom part has an approximately circular cut and is sealed on the side walls on the folded foil bag along a semi-circular sealing seam.
  • the side walls of the cylindrical, filled foil bag taper conically, so that the filled stand-up pouch forms a truncated cone with a removal opening.
  • such a foil pouch can also be formed by using only one blank and the one longitudinal edge being created by a folded edge of this blank.
  • the film bag has two side walls, which are heat-sealed on their perpendicular longitudinal edges 2, so that a sealing or welding seam 3 is created in each case.
  • a bottom part 5 serving as a floor is used, which is circular or elliptical in shape, as can be seen in FIG. 1 on the bottom sealing seam 6.
  • the bottom part 5 and the side walls 1 are welded or sealed over the entire area between the lower transverse edge 4 and the bottom sealing seam 6, so that a reinforced bag wall is obtained in this lower area by this double plastic film.
  • the foil pouch points in the cut of its side walls on an approximately rectangular cut, which results in a cylindrical jacket in the filled state of the film bag.
  • a removal nozzle 7 with a removal opening 8 is formed, the one longitudinal edge 2 running in the cut to the other longitudinal edge 2.
  • the base part 5 hangs down, at least in its central region, so that this base part 5 comes to rest on the base and a high stability of the film bag is obtained.
  • All blanks from which the film bag is formed consist of a two-layer plastic film, as shown in section in FIG.
  • the outward-pointing film 9, which forms the outer skin, is a polyester film with a thickness of 12 f..lm, while the film 10 ⁇ m, which faces the inner space of the film bag and forms the inner skin, is a coextrusion film.
  • Such a coextrusion film is constructed in several layers and, depending on the requirements, the layer structure during the extrusion can be varied and adjusted according to the specific requirements.
  • the film 10 has a thickness of 150 microns, the film thicknesses given for a bag with a filling content of about 1 to 1.5 liters, maximum of 2 liters.
  • a bead 11 in the form of a groove with an embossing stamp is injected into each of the two side walls 1, the groove bottom, as shown in FIG. 2, extending outward.
  • These beads 11 or grooves 12 of the rear or front side wall 1 are congruent, but opposite each other, so that an opening 13 is formed between these beads.
  • a filler neck can be easily inserted into this opening 13 during filling or during automatic filling, so that as the filler neck is pushed further into this opening 13, the entire removal port 7 or the removal opening 8 between the sealing or weld seams 8 opens.
  • FIG. 6 shows an embodiment of a channel 12 corresponding to FIGS. 1 and 2, which, however, tapers in a V-shape towards its downward end.
  • a V-shaped channel 12 or bead 11 has the advantage that it merges into the plane of the side wall 1 in the folded state of the film bag.
  • the channels 12 or beads 11, as shown in the figures, can be in each. Area to be sealed or welded together with the entire removal opening 8 to close the film bag after filling.
  • the removal nozzle 7 can, however, also be designed in such a length that, after the film bag has been filled, the area which projects beyond the weld seam and contains the beads or channels is separated.
  • the width of the channels 12 in FIGS. 1 and 6 is approximately 10 mm, while the depth of each of the channels or beads 11 is approximately 2 mm beyond the plane of the side wall.
  • Figures 4 and 5 show a channel 12 in each side wall 1, which are formed by three individual beads 14 each. Of these individual beads 14, the central bead 14 is directed outwards with its channel bottom, while the two outer beads 14 run inwardly with their channel bottom.
  • the beads of the two side walls are congruent, but opposite each other, so that an opening 13 between these beads corresponds to a rhombus, as shown in Figure 5.
  • All beads 11, 14, as shown in the figures, have a length of 30 mm.
  • the beads 14 according to FIGS. 4 and 5, which are only indicated in lines, are designed with a width of 0.5 mm at a distance of 10 mm from one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Laminated Bodies (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Claims (19)

1. Sac en matière plastique constitué d'une feuille de matière plastique pouvant être scellée ou soudée à la chaleur pour recueillir des agents liquides et/ou pâteux, comportant deux parties planes formant parois latérales, qui sont scellées l'une à l'autre le long de leurs bords longitudinaux et de leur bord transversal inférieur et qui forment une ouverture de prélèvement à l'extrémité supérieure, caractérisé en ce qu'au moins un ourlet (11, 14) dirigé de la face intérieure vers l'extérieur, est disposé au voisinage de l'ouverture de prélèvement (8) dans deux parties opposées des parois latérales (1), de telle sorte que les ourlets (11, 14) des deux parois latérales (1) soient opposés l'un à l'autre, en coïncidence, et se terminent à la périphérie de l'ouverture de prélèvement (8).
2. Sac en matière plastique selon la revendication 1, caractérisé en ce que les ourlets (11, 14) sont disposés pratiquement parallèlement aux bords longitudinaux scellés (2) des parois latérales (11).
3. Sac en matière plastique selon la revendication 1 ou 2, caractérisé en ce que les ourlets (11, 14) ont chacun une longueur de 10 mm à 50 mm.
4. Sac en matière plastique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que chacun des ourlets (11, 14) est réalisé sous la forme d'une gouttière.
5. Sac en matière plastique selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la largeur de chaque ourlet (11) est de 5 mm à 10 mm.
6. Sac en matière plastique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que trois ourlets (14) sont réalisés dans chaque paroi latérale (1), de telle sorte que l'interstice séparant les parois latérales opposées (1) qui forment l'ouverture de prélèvement (8), forme un losange au voisinage des ourlets (14).
7. Sac en matière plastique selon la revendication 6, caractérisé en ce que les ourlets (14) sont disposés parallèlement l'un à l'autre.
8. Sac en matière plastique selon la revendication 6 ou 7, caractérisé en ce que les ourlets (14) ont chacun une largeur d'environ 0,5 mm à 1 mm.
9. Sac en matière plastique selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les ourlets (11, 14) voisins d'une paroi latérale (1) sont disposés à une distance de 5 mm à 10 mm l'un de l'autre.
10. Sac en matière plastique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que chaque paroi latérale présente un ourlet qui forme avec celle-ci un entonnoir.
11. Sac en matière plastique selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'il est réalisé en tant que sac fixe dans lequel est introduite une partie de fond (5) pouvant s'affaisser, s'insérant entre les parois latérales (1) et disposée entre les bords transversaux (4) de la paroi latérale (1).
12. Sac en matière plastique selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la feuille de matière plastique est une feuille (9, 10) stratifiée à deux couches.
13. Sac en matière plastique selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la feuille (9) dirigée vers le volume intérieur est une feuille de polyéthylène.
14. Sac en matière plastique selon la revendication 12 ou 13, caractérisé en ce que la feuille (9) dirigée vers l'extérieur et constituant l'enveloppe extérieure est une feuille de polyester.
15. Sac en matière plastique selon la revendication 13, caractérisé en ce que la feuille de polyéthylène est une feuille produite par co-extrusion.
16. Sac en matière plastique selon l'une quelconque des revendications 12 à 15, caractérisé en ce que la feuille dirigée vers l'extérieur (9) présente une épaisseur d'au moins 10 µm.
17. Sac en matière plastique selon la revendication 16, caractérisé en ce que l'épaisseur de la feuille (8) dirigée vers l'extérieur est de 12 µm.
18. Sac en matière plastique selon l'une quelconque des revendications 12 à 17, caractérisé en ce que la feuille (10) dirigée vers l'intérieur à une épaisseur de 80 µm à 200 µm.
19. Sac en matière plastique selon la revendication 18, caractérisé en ce que l'épaisseur de la feuille (10) dirigée vers l'intérieur est de 100 µm à 150 µm.
EP90100656A 1989-01-13 1990-01-12 Sac Expired - Lifetime EP0383020B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90100656T ATE87874T1 (de) 1989-01-13 1990-01-12 Folienbeutel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8900366U DE8900366U1 (fr) 1989-01-13 1989-01-13
DE8900366U 1989-01-13

Publications (4)

Publication Number Publication Date
EP0383020A2 EP0383020A2 (fr) 1990-08-22
EP0383020A3 EP0383020A3 (en) 1990-11-22
EP0383020B1 true EP0383020B1 (fr) 1993-04-07
EP0383020B2 EP0383020B2 (fr) 1995-07-12

Family

ID=6835043

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90901569A Pending EP0453457A1 (fr) 1989-01-13 1990-01-12 Sachet en plastique
EP90100656A Expired - Lifetime EP0383020B2 (fr) 1989-01-13 1990-01-12 Sac

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90901569A Pending EP0453457A1 (fr) 1989-01-13 1990-01-12 Sachet en plastique

Country Status (9)

Country Link
US (1) US5433526A (fr)
EP (2) EP0453457A1 (fr)
JP (1) JP2720106B2 (fr)
AT (1) ATE87874T1 (fr)
CA (1) CA2045508A1 (fr)
DE (2) DE8900366U1 (fr)
ES (1) ES2040510T3 (fr)
TR (1) TR25078A (fr)
WO (1) WO1990008070A2 (fr)

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US6076968A (en) * 1996-11-26 2000-06-20 The Coca-Cola Company Easy open flexible pouch
USD455645S1 (en) 2000-05-26 2002-04-16 Kapak Corporation Pouch for holding liquids
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US20040107676A1 (en) * 2002-12-05 2004-06-10 Murray R. Charles Flexible pouch and method of forming a flexible pouch
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EP1641373A1 (fr) * 2003-06-27 2006-04-05 Koninklijke Philips Electronics N.V. Poche a soufflets lateraux contenant du fluide dans un dispositif d'hygiene personnelle
US20070110344A1 (en) * 2004-08-03 2007-05-17 Ppi Technologies, Inc. Flexible pouch with ergonomic shape and method of forming
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US9751661B2 (en) 2004-08-03 2017-09-05 Pouch Pac Innovations, Llc Flexible pouch and method of forming flexible pouch
US20090095369A1 (en) * 2005-06-16 2009-04-16 Murray R Charles Apparatus and method of filling a flexible pouch with extended shelf life
WO2007017979A1 (fr) * 2005-08-11 2007-02-15 Dai Nippon Printing Co., Ltd. Sac avec bec verseur
US20070189644A1 (en) * 2006-02-14 2007-08-16 Ppi Technologies, Inc. Apparatus and method of forming a flexible pouch with improved side seam
US20080226200A1 (en) * 2006-03-07 2008-09-18 Pouch Pac Innovations, Llc Flexible pouch with hanging aperture and method of forming
US20070211967A1 (en) * 2006-03-07 2007-09-13 Ppi Technologies, Inc. Flexible pouch for an alcoholic beverage and method of forming
WO2007106891A2 (fr) * 2006-03-15 2007-09-20 Ppi Technologies, Inc. Conditionnement avec dispositif et procede de pistage integres et appareil de fabrication
JP5082279B2 (ja) * 2006-04-07 2012-11-28 東洋製罐株式会社 パウチ容器
US7611102B2 (en) * 2006-04-17 2009-11-03 Pouch Pac Innovations, Llc Holder with integral gripper for transporting a flexible pouch during manufacturing
US7661560B2 (en) * 2006-04-28 2010-02-16 Pouch Pac Innovations, Llc Flexible pouch with a tamper-evident outer cap fitment and method of forming
US8083102B2 (en) * 2006-04-28 2011-12-27 Pouch Pac Innovations, Llc Flexible pouch with a tube spout fitment and flexible sleeve
US20080072547A1 (en) * 2006-07-27 2008-03-27 Ppi Technologies Global Intermittent and continuous motion high speed pouch form-fill-seal apparatus and method of manufacture
US7584593B2 (en) * 2006-11-01 2009-09-08 Pouch Pac Innovations, Llc Method and apparatus for opening a flexible pouch using opening fingers
US20080131244A1 (en) * 2006-11-29 2008-06-05 Pouch Pac Innovations, Llc System, method and machine for continuous loading of a product
US8562274B2 (en) * 2006-11-29 2013-10-22 Pouch Pac Innovations, Llc Load smart system for continuous loading of a pouch into a fill-seal machine
US20090060399A1 (en) * 2007-08-28 2009-03-05 Roland Basque Easy-tear, non-laminated, polyolefin based pouch and method of fabrication
JP5376463B2 (ja) * 2010-04-15 2013-12-25 株式会社東陽機械製作所 包装袋及び同包装袋を用いた包装製品
DE102013226706A1 (de) 2013-12-19 2015-06-25 Beiersdorf Ag Leichtverpackung mit Dosierkammer
CA2990622A1 (fr) * 2015-06-29 2017-01-05 Dow Global Technologies Llc Procede permettant de produire un recipient souple avec systeme de distribution micro-capillaire
CA2990626A1 (fr) * 2015-06-29 2017-01-05 Dow Global Technologies Llc Procede de fabrication in situ de systeme de distribution microcapillaire pour sachet flexible
CN106347828B (zh) * 2015-07-20 2019-01-22 王及伟 流态物品储存囊及制备方法

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Also Published As

Publication number Publication date
WO1990008070A2 (fr) 1990-07-26
ATE87874T1 (de) 1993-04-15
ES2040510T3 (es) 1993-10-16
DE8900366U1 (fr) 1989-08-03
EP0453457A1 (fr) 1991-10-30
EP0383020A2 (fr) 1990-08-22
TR25078A (tr) 1992-11-01
CA2045508A1 (fr) 1990-07-14
EP0383020B2 (fr) 1995-07-12
WO1990008070A3 (fr) 1990-09-07
DE59001149D1 (de) 1993-05-13
US5433526A (en) 1995-07-18
JPH04502599A (ja) 1992-05-14
JP2720106B2 (ja) 1998-02-25
EP0383020A3 (en) 1990-11-22

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