EP0370957B1 - Sac en plastique pour liquides ou matériaux pulvérulents - Google Patents
Sac en plastique pour liquides ou matériaux pulvérulents Download PDFInfo
- Publication number
- EP0370957B1 EP0370957B1 EP19890810891 EP89810891A EP0370957B1 EP 0370957 B1 EP0370957 B1 EP 0370957B1 EP 19890810891 EP19890810891 EP 19890810891 EP 89810891 A EP89810891 A EP 89810891A EP 0370957 B1 EP0370957 B1 EP 0370957B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- neck
- small plate
- film sheet
- plastic film
- 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
Links
- 239000004033 plastic Substances 0.000 title claims description 17
- 229920003023 plastic Polymers 0.000 title claims description 17
- 239000007788 liquid Substances 0.000 title claims description 10
- 239000002985 plastic film Substances 0.000 claims description 14
- 229920006255 plastic film Polymers 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000011324 bead Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/30—Deformable or resilient metal or like strips or bands
Definitions
- the invention relates to a plastic bag according to the preamble of claim 1.
- Known pouches made of two plastic films for holding a liquid or a powdery material are rectangular. To open these bags, a corner is torn off or cut off.
- the disadvantage of these known plastic bags is that if the entire content is not used up, they can no longer be closed again in a simple manner.
- a plastic bag is previously known in which a bag neck is formed by sections of the plastic film, which neck has the same width as the bag.
- a plate made of a plastically deformable material for closing the bag is arranged in the central region of the bag neck, the plate being connected to the bag neck on one side.
- the neck of the bag has folded-in side parts, these folded-in parts having to be stretched to keep the neck of the bag open. Only by bending the plate could it not be possible to keep the neck of the bag sufficiently open. The plate is bent to close the bag.
- the one arranged in the neck of the bag Platelets should also be suitable for opening the neck of the bag while removing the contents contained in the bag.
- the plastic bag according to the invention is characterized by the features stated in the characterizing part of patent claim 1.
- the plastic bag 1 shown in FIG. 1 is made of two essentially rectangular, superimposed plastic films 2. At one of the upper corners, both foils 2 each have a section 3. The sections 3 together form a bag neck 4. The edge regions of the foils 2 and the sections 3 are welded to one another with the exception of the neck opening 5 or are hot-sealed. At a point opposite to the neck of the bag, a pick 6 is used to form a bag bottom. Instead of using the pimple, the bottom of the bag can be obtained by folding in the film if only a single film is used to form the bag.
- the filling material e.g. a liquid can be filled into the bag through a piece of pipe, not shown, which projects through the neck opening 5 into the interior of the bag 1. After filling the container, the edges of the neck opening 5 are also welded after removal of the said pipe piece. The contents can also be filled through the handle, which has not yet been sealed.
- a rectangular plate 7 made of a plastically deformable material is arranged in the bag neck 4.
- the plate 7 is provided at least on one side with a heat-sealable coating or coated with a protective covering, for example with a plastic, or lacquered and welded to the adjacent film section 3 along a long side.
- the welded surface area 8 is indicated in FIGS. 1 and 2 by the hatched area.
- the plate 7 can consist of aluminum, copper or tin, for example.
- the plate 7 is with two Provided rows of beads 9 running parallel to each other.
- the stiffness of the plate 7 is increased by the beads 9. In this way it is possible to use a thinner plate 7 with the same stiffness.
- a tab can be formed on the upper corner of the bag 1 opposite the bag neck 4, which enables the bag 1 to be hung on a hook.
- the plate 7 has no function until the neck opening 5 is opened, for example by cutting off the weld seam closing the neck opening 5.
- the plate 7 is bent around a longitudinal axis 10 drawn in broken lines in FIGS. 1 and 2, which extends between the two rows of beads 9.
- the bag neck 4 is drawn in the open state.
- the two film sections 3 are held in the open position by the plate 7 bent about the longitudinal axis 10, as can be clearly seen from FIG. 3.
- the liquid can flow out of the bag 1 practically unhindered through the bag neck 4 held open by the plate 7, if the bag is inclined accordingly.
- the plate 7 When the desired amount of liquid has been removed from the bag 1, the plate 7 is bent back so that both rows of beads 9 lie in one plane again. Then the plate 7 with the entire bag neck 4 is bent about an axis 11 running transversely to the aforementioned longitudinal axis 10, as shown in FIG. 4. The outer part of the bag neck 4 is bent by the plate 7 in the position essentially 180 ° with respect to the neck held. In this position, the bag 1 is not hermetically sealed, but the leakage of liquid is at least very difficult.
- the above-mentioned plastic film can be a monofilm, a composite film made of two plastic films, e.g. Polyethylene and polyester films or a composite film made of a plastic film and a metal film.
- FIG. 5 to 7 show a second embodiment of the bag according to the invention.
- This bag also has a bag neck 13 formed from sections 12 of the films. Inside the bag neck 13 there is a plate 14 made of a plastically deformable material, the edge area 15 of which is completely welded or sealed to one of the film sections 12. A tab 16 is punched out within the welded edge area; the tab 16 is bent in order to keep the neck 13 of the bag open during the removal of the liquid contained in the bag in the direction of the film section 12 which is not connected to the plate 14. This state is shown in section in FIG. 7.
- the tab 16 is first bent back into the plane of the plate 14. Subsequently, the plate 14 together with the bag neck 13 is bent essentially by 180 ° about an axis running transversely through the bag neck 13.
- the handle 17 has a recess 18 and the two film sections forming the handle 17 are held together by a plurality of, preferably parallel, weld seams 19.
- the bag neck 13 and the adjacent handle 17 are separated from one another by a slot 21 except for a web 20.
- the web 20 forms a predetermined breaking point at which the bag neck 13 can be completely separated from the handle 17 in order to be able to close the bag neck.
- a notch 22 is arranged in the web 20.
- a round opening 23 is provided at least at the end of the slot 21 adjacent to the said neck.
- FIG. 8 shows a third embodiment of the plastic bag according to the invention.
- This bag 24 has a bag neck 25 and a spatula 26 for forming a bottom.
- a plate 27 Arranged within the neck 25 of the bag is a plate 27 which, for example, can be of the same design as the plate 7 according to the bag shown in FIG. 1.
- the bag 24 has a handle 28 to facilitate pouring the liquid.
- the opening and closing of the bag neck 25 is carried out in the same way as in the exemplary embodiment according to FIGS. 1 to 4.
- FIG. 9 shows a fourth exemplary embodiment of the plastic bag according to the invention.
- the bag 29 is wedge-shaped, the end region arranged at the narrowest point being designed as a bag neck 30.
- a pick 31 is used to form the bag bottom.
- a plate 32 is fastened inside the bag neck 30, which plate is configured similarly to the plate 14 according to the exemplary embodiment according to FIGS. 5 to 7.
- On one side of the bag 29 there is a plate from the bottom of the container to the outermost edge of the bag neck 30 extending handle 33 arranged.
- the bag neck 30 is separated from the upper part of the handle 33 by a slot 35.
- a notch 36 is provided in the web 34.
- the bags described above with reference to FIGS. 1 to 7 could also be produced from an endless plastic tube, in which case the side weld seams would then be omitted.
- the bags described above are particularly suitable for so-called refill or multi-portion packs.
- the bags are completely sealed up to the consumer and can be closed again several times after opening several times. After completely emptying, these bags are thrown into the trash where they take up very little space.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH430988 | 1988-11-21 | ||
CH4309/88 | 1988-11-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0370957A1 EP0370957A1 (fr) | 1990-05-30 |
EP0370957B1 true EP0370957B1 (fr) | 1992-09-30 |
Family
ID=4273681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890810891 Expired - Lifetime EP0370957B1 (fr) | 1988-11-21 | 1989-11-21 | Sac en plastique pour liquides ou matériaux pulvérulents |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0370957B1 (fr) |
DE (1) | DE58902376D1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9017419U1 (de) * | 1990-12-24 | 1991-03-14 | Imer, Rodney Haydn, Dipl.-Ing., 4000 Düsseldorf | Konturenbeutel zur Aufnahme flüssiger oder pastöser Stoffe |
DE19501369A1 (de) * | 1995-01-18 | 1996-07-25 | Rovema Gmbh | Beutel mit einer Tülle |
DE10053902B4 (de) * | 2000-10-31 | 2006-06-08 | Martin Geisler | Folien-Beutel mit integriertem und wiederverschließbarem Trinkrohr |
AUPR408601A0 (en) * | 2001-03-29 | 2001-04-26 | Rachael Pty Ltd | Containers and methods for container manufacture |
US6923574B2 (en) * | 2001-10-23 | 2005-08-02 | Kenneth D. Siegel | Flexible pouch with reinforced handle |
US8764292B2 (en) | 2008-11-20 | 2014-07-01 | Performance Seed | Article for holding product and methods |
CA2952360C (fr) * | 2014-07-22 | 2022-09-06 | Nestec S.A. | Emballage refermable ayant une poignee et procedes et dispositifs destines a fabriquer un tel emballage |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US220510A (en) * | 1879-10-14 | Improvement in paper pouches | ||
BE755442A (fr) * | 1969-08-29 | 1971-03-01 | Unifos Kemi Ab | Sacs munis d'un dispositif de fermeture et de transport |
US3734154A (en) * | 1971-04-23 | 1973-05-22 | Packaging Ass Inc | Disposable bag with self-closing valve |
CA1269075A (fr) * | 1982-11-12 | 1990-05-15 | Vincent C. Pace | Fermeture de sac |
FR2550768B1 (fr) * | 1983-08-19 | 1985-08-23 | Ceta Emballages | Sac isolant portatif flexible |
-
1989
- 1989-11-21 DE DE8989810891T patent/DE58902376D1/de not_active Expired - Fee Related
- 1989-11-21 EP EP19890810891 patent/EP0370957B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE58902376D1 (de) | 1992-11-05 |
EP0370957A1 (fr) | 1990-05-30 |
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