EP2439149B1 - Bag packaging - Google Patents
Bag packaging Download PDFInfo
- Publication number
- EP2439149B1 EP2439149B1 EP10405188.3A EP10405188A EP2439149B1 EP 2439149 B1 EP2439149 B1 EP 2439149B1 EP 10405188 A EP10405188 A EP 10405188A EP 2439149 B1 EP2439149 B1 EP 2439149B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- sealed
- outer layer
- zone
- outlet zone
- 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.)
- Active
Links
- 238000004806 packaging method and process Methods 0.000 title claims description 54
- 238000007789 sealing Methods 0.000 claims description 92
- 239000012785 packaging film Substances 0.000 claims description 16
- 229920006280 packaging film Polymers 0.000 claims description 16
- -1 polyethylene Polymers 0.000 claims description 16
- 229920000573 polyethylene Polymers 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 15
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 229920006255 plastic film Polymers 0.000 claims description 7
- 239000002985 plastic film Substances 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 3
- 230000009969 flowable effect Effects 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229920000554 ionomer Polymers 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009459 flexible packaging Methods 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 76
- 239000000463 material Substances 0.000 description 22
- 230000009172 bursting Effects 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 210000003811 finger Anatomy 0.000 description 5
- 210000003813 thumb Anatomy 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 210000004247 hand Anatomy 0.000 description 3
- 241000219198 Brassica Species 0.000 description 2
- 235000003351 Brassica cretica Nutrition 0.000 description 2
- 235000003343 Brassica rupestris Nutrition 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 235000008960 ketchup Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000010460 mustard Nutrition 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920003182 Surlyn® Polymers 0.000 description 1
- 239000005035 Surlyn® Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- IKZZIQXKLWDPCD-UHFFFAOYSA-N but-1-en-2-ol Chemical compound CCC(O)=C IKZZIQXKLWDPCD-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000012939 laminating adhesive Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 235000010746 mayonnaise Nutrition 0.000 description 1
- 239000008268 mayonnaise Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011092 plastic-coated paper Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
-
- 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
-
- 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
- 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
- B65D75/5855—Peelable seals
-
- 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
- B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
- B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
Definitions
- the invention relates to a bag packaging according to the preamble of claim 1.
- the bags are usually constructed of film laminates and have on the outside a printed, optionally overcoated paper layer or a plastic film, eg. B. of PET, oPP, oPA or cellophane, on.
- the plastic film can also be printed by reverse printing.
- z. B. serving as a predetermined crack point material weakening, z. B. in the form of laser cutting lines that extend over only a portion of the material thickness of the film laminate may be provided.
- Another Sollrissstelle is z. B. a commonly arranged in a sealed seam Anreisskerbe.
- US 3 635 376 A and US 4,328,912 A describe bag packaging for flowable products in which a spout channel is formed by a non-sealed point, and the spout channel can be closed and opened by an elastically deformable closure means.
- EP 0 496 587 A2 describes a pouch packaging with a centrally located spout channel formed by a thin seal embedded in the interior of the pouch forming a small prechamber and breaklines contains, is closed. By means of central folding of the bag and pressurization, the break edges tear and the contents pour into the antechamber of the pouring channel.
- US 4,890,744 A describes a pouch packaging with a spout channel in a circumferential sealing surface, wherein the spout channel is closed by a thin-walled seal, which breaks when pressurized the contents.
- Another known opening aid consists of a notch introduced in the packaging unit usually on the finished bag into a sealed seam.
- the laminate is weakened locally before bag production by means of laser cuts in the intended opening area. In either case, there is a possibility that an existing barrier layer is damaged or a notch extends into the unsealed area.
- the invention has for its object to provide a pouch packaging of the type mentioned, which has a one-hand opening system to be used, with which a contamination of the hands with leaking out of the package contents can be avoided with proper operation.
- the sealing seam is widened in an area adjacent to the sealing edge to a sealing zone directed away from the sealing edge, and the outlet zone extends up to a marginal edge of the sealing edge.
- the sealing zone and the outlet zone are arranged at a distance from the sealed seam, and the outer layer has a weakening line or a separating cut as the exit point in the area region of the outlet zone for the contents of the bag packaging.
- the outer layer in the outflow zone adheres to the part of the pouch front wall which lies below the outer layer and has a lower adhesive power than the outflow zone and is peelable therefrom.
- the outer layer in the outlet zone is detached from the part of the bag front wall lying below the outer layer.
- the outer layer in the outflow zone is detached from the part of the pouch front wall lying beneath the outer layer except for an area in the sealing edge and adheres to the region in the sealing edge with an adhesion force outside the outflow zone lower adhesive force on the lying under the outer layer part of the bag front wall and is peelable from this.
- the sealing zone may have the shape of a triangle with a base parallel to the sealing edge and legs forming a tip at a distance from the sealing edge.
- the sealing zone can also have the shape of a strip preferably projecting at right angles from the edge of the seal, with a free end.
- the outlet zone is delimited by two boundary lines extending essentially parallel to one another and perpendicular to the edge of the seal.
- the outlet zone can also be delimited by two borderlines preferably extending in the region of a bag corner against one end of the sealing edge.
- the sealing zone preferably also has the shape of a triangle with a lying parallel to the sealing edge base and at a distance from the sealing edge forming a peak legs.
- the outlet zone is delimited by two boundary lines running substantially parallel to one another and perpendicular to the edge of the seal, and two boundary lines extending essentially parallel to one another and parallel to the edge of the seal.
- the sealing layer can be connected as a sealing film via a laminating adhesive with a carrier layer.
- the sealing layer can also be applied directly to a carrier layer by extrusion coating. Under certain conditions, it is also possible to produce a sealing layer and a carrier layer by coextrusion.
- the outer layer arranged on the side of the bag front wall which forms the outer side in the finished bag packaging is separated in a separable manner from a carrier layer located below the outer layer in the regions outside the outlet zone for the filling material by means of an adhesive layer.
- the outer layer is peelably connected to the carrier layer or detached from it.
- the outer layer can be peelably sealed within the outlet zone only in the region of the sealing edge against the carrier layer and be detached from the carrier layer outside the sealing edge.
- the sealing layer and the carrier layer can form a single, common layer.
- the sealing layer, the carrier layer and the outer layer can also consist of a single layer or be constructed in multiple layers.
- the sealant layers are usually polyethylenes, eg LDPE, LLDPE, MDPE and mixtures thereof or co-extruded, metallocenes polyethylenes and ionomers, eg Surlyn®, or coextruded films of these materials with PE as support layer.
- Polypropylene can also be used for special applications.
- the thickness of the sealing layers is in the range of 10 to 100 microns, preferably 15 to 75 microns.
- Suitable carrier layers are films of metal, in particular aluminum or an aluminum alloy. These serve as a barrier layer against the passage of oxygen, water vapor and flavors.
- the thickness of the aluminum foil used as a barrier for bags is about 5 to 30 ⁇ m, preferably 7 to 15 ⁇ m.
- Suitable outer layers are biaxially oriented plastic films of polyester, polypropylene or polyamide.
- a preferred polyester is PET (polyethylene terephthalate) in a preferred thickness of 8 to 20 microns, especially 12 microns.
- the plastic film used as outer layer can be printed frontally and optionally provided with a lubricious topcoat or be counter-printed. Instead of a plastic film, a plastic-coated paper layer can also be used as the outer layer.
- barrier layer of aluminum foil instead of a barrier layer of aluminum foil, other barrier layers can be used, for.
- ceramic thin films of silicon oxides and / or alumina which are applied by sputtering or by deposition from the vacuum, or plastic films, for.
- B. from materials of the series of vinyl alcohols, eg. As the ethyl-vinyl-alcohol polymers or polyvinylidene chloride.
- the bag front wall and the bag back wall may have the same or a different layer structure.
- the bag front wall and the bag back wall are made of the same packaging film.
- the bag packages according to the invention are in particular 3- and 4-sealed edge bags as well as tubular bags with a longitudinal seam and two transverse seams.
- the scope includes u. a. also a package in which the bag back wall as a flexible, z. B. manufactured by thermoforming or cold forming container is configured with a circumferential sealing surface and the bag front wall is sealed as a lid against the sealing surface.
- Bag package 10 shown as an example in the form of a flat bag, in particular a so-called 4-edge bag with four arranged in a rectangle seal edges 16, 18, 20, 22 consists essentially of two opposite, a bag front and a bag back forming packaging films.
- the packaging film forming the front of the bag, referred to herein as the bag front wall 12, and the packaging film forming the back of the bag, referred to herein as the bag rear wall 14, are substantially strip-shaped over the bag package 10 along the seal edges 16, 18, 20, 22 Sealed seam 24 connected to each other and include a Gregutraum 13 a.
- the pouch packaging 10 normally contains a flowable, in particular a liquid, semi-liquid or pasty filling material 11.
- Pouch packaging 10 comprises, for example, the known, ketchup, mustard, mayonnaise and the like food products containing sachets as filling material 11.
- the strip-shaped sealing seam 24 to a sealing zone 26 in the shape of an isosceles triangle with a parallel to the sealing edge 16 base c and two at a distance e to the sealing edge 16 a tip 27 forming legs a , b extended.
- the bag front wall 12 can be sealed on the side directed toward the inside of the bag package 10 against the side of the bag rear wall 14 which is likewise directed against the inside of the bag package 10.
- the side of the bag front wall 12 directed towards the outside has an outer layer 28.
- the tip 27 of the sealing zone 26 including the outlet zone 30 for the product 11 adheres the outer layer 28 with respect to the adhesive force outside the outlet zone 30 lower adhesive force on the underlying portion 29 of the bag front wall 12 or is in the outlet zone 30 from the underlying portion 29 of the bag front wall 12 detached.
- the outlet zone 30 is delimited by a border line 32 extending parallel to the sealing edge 16 and two border lines 34, 36 running parallel to each other and perpendicular to the sealing edge 16, which guide the transition of the outer layer 28 from the parting 29 underneath the bag front wall 12 to form a peelable or non-adhesive connection in the outlet zone 30.
- the boundary line 32 running parallel to the sealing edge 16 is, as seen in plan view of the bag, spaced from the tip 27 of the sealing zone 26 by a distance f.
- bag packaging 10 If the filled with filling material 11 bag packaging 10 is pressurized from the outside, what in practical use z. B. by compressing the bag 10 between the thumb and index finger of a hand, so there is a wrinkling on the bag 10 such that the tension, which acts on the sealed against each other bag walls at the transition from Gugutraum 13 to the seal compound at the top 27 of Sealing zone 26 reaches a maximum.
- the breaking elongation of the part 29 of the bag front wall 12 weakened by the reduced or missing adhesion of the outer layer 28 in the outlet zone 30 is exceeded, a breakage or local severing of this part 29 of the bag front wall 12 takes place to form an opening slit 38 (FIG. Fig. 3 ).
- FIG. 5 shows that when applying a pressure on the held between index finger 46 and thumb 48 of a hand 44 bag 10 filling 11 by the at the peripheral edge 17 of the sealing edge 16 from lying under the outer layer 28 portion 29 of the bag front wall 12 and the outer layer 28 formed outlet opening 42 exit.
- Fig. 5 recognizable that the opening of the bag packaging and removal of the filling material 11 is carried out by one-handed operation.
- the squeezing the pouch causing index fingers and thumb from the outlet opening for the filling spaced such that contamination with contents, as can not be reliably avoided in conventional bags with Aufreisssystem even with proper opening, is prevented.
- FIG. 6 illustrated variant of the in Fig. 1 to 5 As shown in the bag package shown formed by the outlet zone 30 and two boundary lines 34 ', 36' limited channel 40 along one side of the triangular sealing zone 26 to the sealing edge 16, so that the outlet opening 42 results at the peripheral edge 17 of the sealing edge 16 in a bag corner.
- a sealing zone 26 'projecting at right angles from the sealing edge 16 or from the strip-shaped sealing seam 24 is provided in the form of a strip with a free end 27' instead of the triangular tip 27.
- the free end 27 'of the strip-shaped sealing zone 26' is here corresponding to that in the Fig. 1 to 5 shown embodiment with the triangular sealing zone 26 of the outlet zone 30 for the filling material 11 enclosed.
- the outlet zone 30 is limited by a parallel to the sealing edge 16 and two parallel to each other and perpendicular to the sealing edge 16 extending boundary lines 32, 34, 36th
- the channel 40 formed by the outlet zone 30 and delimited by two boundary lines 34 ', 36' extends along one side of the strip-shaped sealing zone 26 'to the peripheral edge 17 of the sealed seam 16.
- the optimum dimensions and arrangements of the strip-shaped sealing zones 26 'corresponding to the lowest possible bursting pressure can be determined in a simple manner.
- FIGS. 11 and 12 the construction of two packaging films suitable for the production of the bag packaging 10 is shown.
- a sealing layer 50 is applied by extrusion coating to the side of a carrier layer 52, which later faces against the inside of a bag packaging produced from the packaging film, or is connected to the carrier layer 52 via an adhesive layer.
- the side of the carrier layer 52 directed against the outside of the pouch packaging produced from the packaging film is connected in a separable manner to the outer layer 28 via a first joining material 54.
- the outer layer 28 with the support layer 52 lying below the outer layer 28 is, in some cases, not peelably connected via a connection-free zone 58 or via a second connecting material 56.
- the first bonding material 54 for producing the release-resistant compound is, for example, an adhesive based on polyurethane (PU).
- the second bonding material 56 for producing the peelable compound is, for example, a hotmelt or a hot-seal lacquer.
- the sealing layer 50 consists for example of a polyethylene (PE), the support layer 52 of an aluminum foil and the outer layer of polyethylene terephthalate (PET).
- packaging film corresponds in its structure in Fig. 11 illustrated packaging film, in which case the sealing layer 50 at the same time includes the carrier layer and, for example, consists of a polyethylene.
- the same packaging film can be used for the bag front wall 12 and the bag rear wall 14.
- the application of the second bonding material 56 used to produce the peelable regions can be carried out in a printing process, for. B. as register printing.
- pouch packaging is at a distance from the strip-shaped sealing seam 24 a sealing zone 26 "in the shape of an isosceles triangle with a lying parallel to the sealing edge 16 base c and two from the sealing edge 16 facing away tip 27" forming legs a, b approximately in the middle of Bag front wall 12 arranged.
- the surface area of the outlet zone 30 for the filling material 11 encloses the entire sealing zone 26 "and likewise has a spacing around the sealing edge 16 and the sealed seam 24.
- the outer layer 28 is provided with a weakening line or through the surface region of the outlet zone 30 for the filling material 11 the outer layer continuous separating cut 37 is provided as a slot-shaped opening for the discharge of the filling material 11 from the bag packaging 10.
- the separating cut 37 runs parallel to the sealing seam 16 and is arranged between the sealing edge 16 and the sealing zone 26 ".
- the outlet zone 30 is delimited by two boundary lines 32, 33 extending parallel to the sealing edge 16 and two boundary lines 34, 36 running parallel to each other and perpendicular to the sealing edge 16, which guide the transition of the outer layer 28 from the parting connection 29 to the underlying part 29 Bag front wall 12 for peelable or non-adhesive connection in the outlet zone 30 form.
- pouch packaging 10 intended for a Grestochy from the bag front wall 12 pouch packaging 10 is applied by folding the bag and pressing together the superposed by the folding bag halves from the outside with pressure, which in practical use - as in Fig. 14 shown - eg. B. performed between thumb 48 and index finger 46 of a hand becomes.
- the wrinkling takes place here on the pouch 10 such that the tensile stress which acts on the sealed against each other bag walls at the transition from Medgutraum 13 for sealing compound, at the top 27 "of the sealing zone 26 reaches a maximum.
- bag packaging 10 also includes a packaging in which the bag rear wall 14 as a flexible, z. B. made by thermoforming or cold forming container with a circumferential sealing surface and the bag front wall 12 is sealed as a lid against the sealing surface.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Packages (AREA)
Description
Die Erfindung betrifft eine Beutelverpackung nach dem Oberbegriff von Anspruch 1.The invention relates to a bag packaging according to the preamble of claim 1.
Zum Verpacken von Portionen von Ketchup, Senf und dergleichen in kleiner Menge abgepackten Produkten in flüssiger, teilflüssiger oder pastöser Form werden überwiegend Flachbeutel oder Sachets in der Form von 3- und 4-Siegelrandbeuteln oder Schlauchbeutel verwendet. Die Beutel sind üblicherweise aus Folienlaminaten aufgebaut und weisen auf der Aussenseite eine bedruckte, gegebenenfalls überlackierte Papierschicht oder eine Kunststofffolie, z. B. aus PET, oPP, oPA oder Zellglas, auf. Die Kunststofffolie kann auch im Konterdruckverfahren bedruckt sein.For packaging portions of ketchup, mustard and the like in small quantities in liquid, semi-liquid or pasty form packed products, flat bags or sachets in the form of 3- and 4-sealed edge bags or tubular bags are predominantly used. The bags are usually constructed of film laminates and have on the outside a printed, optionally overcoated paper layer or a plastic film, eg. B. of PET, oPP, oPA or cellophane, on. The plastic film can also be printed by reverse printing.
Die Öffnung dieser, bedingt durch kleine Mengen an abgepacktem Produkt, relativ kleinen Beutel erfolgt üblicherweise durch Aufreissen. Hierfür kann im vorgesehenen Öffnungsbereich eine als Sollrissstelle dienende Materialschwächung, z. B. in Form von Laserschnittlinien, die sich über nur einen Teil des Materialdicke des Folienlaminats erstrecken, vorgesehen sein. Eine andere Sollrissstelle ist z. B. eine üblicherweise in einer Siegelnaht angeordnete Anreisskerbe. Zum Öffnen wird der Beutel im Normalfall an zwei Stellen zwischen Finger und Daumen jeder Hand fixiert, und die Öffnung durch Aufreissen wird durch eine Relativbewegung der beiden Hände zueinander bewirkt.The opening of these, due to small amounts of packaged product, relatively small bag is usually carried out by tearing. For this purpose, serving as a predetermined crack point material weakening, z. B. in the form of laser cutting lines that extend over only a portion of the material thickness of the film laminate may be provided. Another Sollrissstelle is z. B. a commonly arranged in a sealed seam Anreisskerbe. To open the bag is normally fixed in two places between the finger and thumb of each hand, and the opening by tearing is caused by a relative movement of the two hands to each other.
Eine weitere bekannte Öffnungshilfe besteht aus einer in der Abpackanlage üblicherweise am fertigen Beutel in eine Siegelnaht eingebrachte Kerbe. Bei einer anderen bekannten Öffnungshilfe wird das Laminat vor der Beutelfertigung mittels Laserschnitten im vorgesehenen Öffnungsbereich lokal geschwächt. In beiden Fällen besteht die Möglichkeit, dass eine vorhandene Barriereschicht geschädigt wird oder eine Kerbe in den ungesiegelten Bereich hineinreicht.Another known opening aid consists of a notch introduced in the packaging unit usually on the finished bag into a sealed seam. In another known opening aid, the laminate is weakened locally before bag production by means of laser cuts in the intended opening area. In either case, there is a possibility that an existing barrier layer is damaged or a notch extends into the unsealed area.
Ein weiterer Nachteil der bekannten Öffnungshilfen in Form von Anreisskerben und Laserschnitten liegt darin, dass selbst bei sorgfältigem Aufreissen der Beutel das Füllgut noch während des Aufreissvorgangs austritt und ungewollt an den Händen haften bleibt.Another disadvantage of the known opening aids in the form of Anreisskerben and laser cuts is that even with careful tearing of the bag, the contents still exits during the tearing process and unintentionally stick to the hands.
Der Erfindung liegt die Aufgabe zugrunde, eine Beutelverpackung der eingangs genannten Art bereitzustellen, die ein mit einer Hand zu bedienendes Öffnungssystem aufweist, mit welchem eine Kontaminierung der Hände mit aus der Verpackung austretendem Füllgut bei sachgemässer Bedienung vermieden werden kann.The invention has for its object to provide a pouch packaging of the type mentioned, which has a one-hand opening system to be used, with which a contamination of the hands with leaking out of the package contents can be avoided with proper operation.
Zur erfindungsgemässen Lösung der Aufgabe führt eine Beutelverpackung mit den Merkmalen von Anspruch 1.For the inventive solution of the problem leads a bag packaging with the features of claim 1.
Bei einer ersten bevorzugten Ausführungsform der erfindungsgemässen Beutelverpackung ist die Siegelnaht in einem an den Siegelrand angrenzenden Bereich zu einer vom Siegelrand weg gerichteten Siegelzone erweitert und die Auslaufzone erstreckt sich bis zu einer Randkante des Siegelrandes.In a first preferred embodiment of the inventive bag packaging the sealing seam is widened in an area adjacent to the sealing edge to a sealing zone directed away from the sealing edge, and the outlet zone extends up to a marginal edge of the sealing edge.
Bei einer zweiten bevorzugten Ausführungsform der erfindungsgemässen Beutelverpackung sind die Siegelzone und die Auslaufzone in einem Abstand zur Siegelnaht angeordnet und die Aussenschicht weist im Flächenbereich der Auslaufzone eine Schwächungslinie oder einen Trennschnitt als Austrittsstelle für das Füllgut aus der Beutelverpackung auf.In a second preferred embodiment of the bag packaging according to the invention, the sealing zone and the outlet zone are arranged at a distance from the sealed seam, and the outer layer has a weakening line or a separating cut as the exit point in the area region of the outlet zone for the contents of the bag packaging.
Bei einer ersten bevorzugten Variante der erfindungsgemässen Beutelverpackung haftet die Aussenschicht in der Auslaufzone mit einer gegenüber der Haftkraft ausserhalb der Auslaufzone geringeren Haftkraft auf dem unter der Aussenschicht liegenden Teil der Beutelfrontwand und ist von diesem peelbar.In a first preferred variant of the pouch packaging according to the invention, the outer layer in the outflow zone adheres to the part of the pouch front wall which lies below the outer layer and has a lower adhesive power than the outflow zone and is peelable therefrom.
Bei einer zweiten bevorzugten Variante der erfindungsgemässen Beutelverpackung ist die Aussenschicht in der Auslaufzone von dem unter der Aussenschicht liegenden Teil der Beutelfrontwand losgelöst.In a second preferred variant of the bag packaging according to the invention, the outer layer in the outlet zone is detached from the part of the bag front wall lying below the outer layer.
Bei einer für die erste bevorzugte Ausführungsform der erfindungsgemässen Beutelverpackung bevorzugten dritten Variante ist die Aussenschicht in der Auslaufzone von dem unter der Aussenschicht liegenden Teil der Beutelfrontwand bis auf einen Bereich im Siegelrand losgelöst und haftet in dem Bereich im Siegelrand mit einer gegenüber der Haftkraft ausserhalb der Auslaufzone geringeren Haftkraft auf dem unter der Aussenschicht liegenden Teil der Beutelfrontwand und ist von diesem peelbar.In a third variant which is preferred for the first preferred embodiment of the pouch packaging according to the invention, the outer layer in the outflow zone is detached from the part of the pouch front wall lying beneath the outer layer except for an area in the sealing edge and adheres to the region in the sealing edge with an adhesion force outside the outflow zone lower adhesive force on the lying under the outer layer part of the bag front wall and is peelable from this.
Bei der ersten bevorzugten Ausführungsform der erfindungsgemässen Beutelverpackung kann die Siegelzone die Form eines Dreiecks mit einer parallel zum Siegelrand liegenden Basis und in Abstand zum Siegelrand eine Spitze bildenden Schenkeln aufweisen. Die Siegelzone kann aber auch die Form eines vom Siegelrand vorzugsweise rechtwinklig abragenden Streifens mit einem freien Ende aufweisen. Zweckmässigerweise ist die Auslaufzone durch zwei im Wesentlichen parallel zu einander und senkrecht zum Siegelrand verlaufende Grenzlinien begrenzt. Die Auslaufzone kann aber auch durch zwei vorzugsweise gegen ein Ende des Siegelrandes im Bereich einer Beutelecke verlaufende Grenzlinien begrenzt sein.In the first preferred embodiment of the bag packaging according to the invention, the sealing zone may have the shape of a triangle with a base parallel to the sealing edge and legs forming a tip at a distance from the sealing edge. However, the sealing zone can also have the shape of a strip preferably projecting at right angles from the edge of the seal, with a free end. Expediently, the outlet zone is delimited by two boundary lines extending essentially parallel to one another and perpendicular to the edge of the seal. However, the outlet zone can also be delimited by two borderlines preferably extending in the region of a bag corner against one end of the sealing edge.
Bei der zweiten bevorzugten Ausführungsform der erfindungsgemässen Beutelverpackung weist die Siegelzone bevorzugt ebenfalls die Form eines Dreiecks mit einer parallel zum Siegelrand liegenden Basis und in Abstand zum Siegelrand eine Spitze bildenden Schenkeln auf. Zweckmässigerweise ist die Auslaufzone durch zwei im Wesentlichen parallel zu einander und senkrecht zum Siegelrand verlaufende Grenzlinien und zwei im Wesentlichen parallel zu einander und parallel zum Siegelrand verlaufende Grenzlinien begrenzt.In the second preferred embodiment of the pouch packaging according to the invention, the sealing zone preferably also has the shape of a triangle with a lying parallel to the sealing edge base and at a distance from the sealing edge forming a peak legs. Expediently, the outlet zone is delimited by two boundary lines running substantially parallel to one another and perpendicular to the edge of the seal, and two boundary lines extending essentially parallel to one another and parallel to the edge of the seal.
Als Beutelfrontwand und Beutelrückwand geeignete, gegeneinander siegelbare Verpackungsfolien weisen auf der in der fertigen Beutelverpackung die Innenseite bildenden Seite eine Siegelschicht auf. Die Siegelschicht kann dabei als Siegelfilm über einen Kaschierkleber mit einer Trägerschicht verbunden sein. Die Siegelschicht kann aber auch durch Extrusionsbeschichten direkt auf eine Trägerschicht aufgetragen sein. Unter gewissen Bedingungen ist es auch möglich, eine Siegelschicht und eine Trägerschicht durch Coextrusion herzustellen.As a bag front wall and bag back wall suitable, against each other sealable packaging films have on the inside of the finished bag packaging forming the inside a sealing layer. The sealing layer can be connected as a sealing film via a laminating adhesive with a carrier layer. However, the sealing layer can also be applied directly to a carrier layer by extrusion coating. Under certain conditions, it is also possible to produce a sealing layer and a carrier layer by coextrusion.
Die auf der in der fertigen Beutelverpackung die Aussenseite bildenden Seite der Beutelfrontwand angeordnete Aussenschicht ist in den Bereichen ausserhalb der Auslaufzone für das Füllgut über eine Kleberschicht trennfest mit einer unter der Aussenschicht liegenden Trägerschicht trennfest verbunden.The outer layer arranged on the side of the bag front wall which forms the outer side in the finished bag packaging is separated in a separable manner from a carrier layer located below the outer layer in the regions outside the outlet zone for the filling material by means of an adhesive layer.
In den Bereichen innerhalb der Auslaufzone für das Füllgut ist die Aussenschicht mit der Trägerschicht peelbar verbunden oder von dieser losgelöst. Gegebenenfalls kann die Aussenschicht innerhalb der Auslaufzone nur im Bereich des Siegelrandes peelbar gegen die Trägerschicht gesiegelt und ausserhalb des Siegelrandes von der Trägerschicht losgelöst sein.In the areas within the outlet zone for the filling material, the outer layer is peelably connected to the carrier layer or detached from it. Optionally, the outer layer can be peelably sealed within the outlet zone only in the region of the sealing edge against the carrier layer and be detached from the carrier layer outside the sealing edge.
Die Siegelschicht und die Trägerschicht können eine einzige, gemeinsame Schicht bilden. Die Siegelschicht, die Trägerschicht und die Aussenschicht können auch aus jeweils einer einzigen Schicht bestehen oder mehrschichtig aufgebaut sein.The sealing layer and the carrier layer can form a single, common layer. The sealing layer, the carrier layer and the outer layer can also consist of a single layer or be constructed in multiple layers.
Die Siegelschichten sind üblicherweise Polyethylene, z.B. LDPE, LLDPE, MDPE und Mischungen davon oder coextrudiert, Metallozene Polyethylene und lonomere, z.B. Surlyn®, oder coextrudierte Folien aus diesen Materialien mit PE als Trägerschicht. Für spezielle Anwendungen können auch Polypropylene verwendet werden. Die Dicke der Siegelschichten liegt im Bereich von 10 bis 100 µm, vorzugsweise 15 bis 75 µm.The sealant layers are usually polyethylenes, eg LDPE, LLDPE, MDPE and mixtures thereof or co-extruded, metallocenes polyethylenes and ionomers, eg Surlyn®, or coextruded films of these materials with PE as support layer. Polypropylene can also be used for special applications. The thickness of the sealing layers is in the range of 10 to 100 microns, preferably 15 to 75 microns.
Geeignete Trägerschichten sind Folien aus Metall, insbesondere aus Aluminium oder einer Aluminiumlegierung. Diese dienen gleichzeitig als Barriereschicht gegen den Durchtritt von Sauerstoff, Wasserdampf und Aromastoffen. Die Dicke der für Beutel als Barriere eingesetzten Aluminiumfolie beträgt etwa 5 bis 30 µm, vorzugsweise 7 bis 15 µm.Suitable carrier layers are films of metal, in particular aluminum or an aluminum alloy. These serve as a barrier layer against the passage of oxygen, water vapor and flavors. The thickness of the aluminum foil used as a barrier for bags is about 5 to 30 μm, preferably 7 to 15 μm.
Geeignete Aussenschichten sind biaxial orientierte Kunststofffilme aus Polyester, Polypropylen oder Polyamid. Ein bevorzugter Polyester ist PET (Polyethylenterephthalat) in einer bevorzugten Dicke von 8 bis 20µm, insbesondere 12 µm. Der als Aussenschicht eingesetzte Kunststofffilm kann frontal bedruckt und gegebenenfalls mit einem gleitfähigen Überlack versehen oder konterbedruckt sein. Anstelle eines Kunststofffilms kann auch eine mit Kunststoff beschichtete Papierschicht als Aussenschicht eingesetzt werden.Suitable outer layers are biaxially oriented plastic films of polyester, polypropylene or polyamide. A preferred polyester is PET (polyethylene terephthalate) in a preferred thickness of 8 to 20 microns, especially 12 microns. The plastic film used as outer layer can be printed frontally and optionally provided with a lubricious topcoat or be counter-printed. Instead of a plastic film, a plastic-coated paper layer can also be used as the outer layer.
Anstelle einer Barriereschicht aus einer Aluminiumfolie können auch andere Barriereschichten verwendet werden, z. B. keramische Dünnschichten aus Siliciumoxiden und/oder Aluminiumoxid, die durch Sputtern oder durch Abscheidung aus dem Vakuum aufgetragen werden, oder Kunststofffolien, z. B. aus Materialien der Reihe der Vinylalkohole, z. B. der Ethyl-Vinyl-Alkohol-Polymere oder des Polyvinylidenchlorids.Instead of a barrier layer of aluminum foil, other barrier layers can be used, for. As ceramic thin films of silicon oxides and / or alumina, which are applied by sputtering or by deposition from the vacuum, or plastic films, for. B. from materials of the series of vinyl alcohols, eg. As the ethyl-vinyl-alcohol polymers or polyvinylidene chloride.
Die Beutelfrontwand und die Beutelrückwand können den gleichen oder einen unterschiedlichen Schichtaufbau aufweisen. Üblicherweise werden die Beutelfrontwand und die Beutelrückwand aus der gleichen Verpackungsfolie hergestellt.The bag front wall and the bag back wall may have the same or a different layer structure. Usually, the bag front wall and the bag back wall are made of the same packaging film.
Die erfindungsgemässen Beutelverpackungen sind insbesondere 3- und 4-Siegelrandbeutel sowie Schlauchbeutel mit einer Längsnaht und zwei Quernähten. Vom Schutzbereich umfasst wird u. a. auch eine Verpackung, bei der die Beutelrückwand als flexibler, z. B. durch Thermo- oder Kaltformen hergestellter Behälter mit einer umlaufenden Siegelfläche ausgestaltet ist und die Beutelfrontwand als Deckel gegen die Siegelfläche gesiegelt ist.The bag packages according to the invention are in particular 3- and 4-sealed edge bags as well as tubular bags with a longitudinal seam and two transverse seams. The scope includes u. a. also a package in which the bag back wall as a flexible, z. B. manufactured by thermoforming or cold forming container is configured with a circumferential sealing surface and the bag front wall is sealed as a lid against the sealing surface.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt schematisch in
- Fig. 1
- eine Draufsicht auf die Vorderseite eines Flachbeutels mit Öffnungssystem;
- Fig. 2
- einen Schnitt durch den ungeöffneten Flachbeutel von
Fig. 1 nach der Linie I-I; - Fig. 3
- den Schnitt von
Fig.2 nach dem Öffnen des Flachbeutels; - Fig. 4
- eine perspektivische Ansicht des Schlauchbeutels von
Fig. 1 im ungeöffneten Zustand; - Fig. 5
- der Schlauchbeutel von
Fig. 4 in geöffnetem Zustand; - Fig. 6
- eine Draufsicht auf einen Teil der Vorderseite des Flachbeutels von
Fig. 1 mit unterschiedlichem Verlauf der Auslaufzone für das Füllgut; - Fig. 7
- eine Draufsicht auf einen Teil der Vorderseite des Flachbeutels von
Fig. 1 mit unterschiedlich gestalteter Siegelzone; - Fig. 8
- eine Draufsicht auf den Teil der Vorderseite des Flachbeutels von
Fig. 7 mit unterschiedlichem Verlauf der Auslaufzone für das Füllgut; - Fig. 9
- eine Draufsicht auf den Teil der Vorderseite des Flachbeutels von
Fig. 7 mit variablem Verhältnis der Länge der Siegelzone und deren Abstand vom seitlichen Siegelrand; - Fig. 10
- eine grafische Darstellung der Abhängigkeit des Berstdrucks eines Flachbeutels vom Produkt der Variablen von
Fig. 9 ; - Fig. 11
- einen ersten Aufbau einer Verpackungsfolie zur Herstellung einer Beutelverpackung;
- Fig. 12
- einen zweiten Aufbau einer Verpackungsfolie zur Herstellung einer Beutelverpackung;
- Fig. 13
- eine Draufsicht auf die Vorderseite des Flachbeutels von
Fig. 1 mit ausserhalb der Siegelnaht angeordneter Siegel- und Auslaufzone; - Fig. 14
- die Entnahme von Füllgut aus dem Beutel von
Fig. 13 .
- Fig. 1
- a plan view of the front of a flat bag with opening system;
- Fig. 2
- a section through the unopened flat bag of
Fig. 1 after the line II; - Fig. 3
- the cut of
Fig.2 after opening the flat bag; - Fig. 4
- a perspective view of the tubular bag of
Fig. 1 in the unopened condition; - Fig. 5
- the tubular bag of
Fig. 4 in open condition; - Fig. 6
- a plan view of a portion of the front of the flat bag of
Fig. 1 with different course of the outlet zone for the medium; - Fig. 7
- a plan view of a portion of the front of the flat bag of
Fig. 1 with differently shaped sealing zone; - Fig. 8
- a plan view of the part of the front of the flat bag of
Fig. 7 with different course of the outlet zone for the medium; - Fig. 9
- a plan view of the part of the front of the flat bag of
Fig. 7 with variable ratio of the length of the sealing zone and their distance from the lateral sealing edge; - Fig. 10
- a graphic representation of the dependence of the bursting pressure of a flat bag from the product of the variables of
Fig. 9 ; - Fig. 11
- a first construction of a packaging film for producing a bag packaging;
- Fig. 12
- a second construction of a packaging film for producing a bag packaging;
- Fig. 13
- a plan view of the front of the flat bag of
Fig. 1 with sealing and outlet zone arranged outside the sealed seam; - Fig. 14
- the removal of contents from the bag of
Fig. 13 ,
Eine in den
In einem zur Beutelöffnung vorgesehenen, an den Siegelrand 16 angrenzenden Bereich ist die streifenförmige Siegelnaht 24 zu einer Siegelzone 26 in der Form eines gleichschenkligen Dreiecks mit einer parallel zum Siegelrand 16 liegenden Basis c und zwei in Abstand e zum Siegelrand 16 eine Spitze 27 bildenden Schenkeln a, b erweitert.In a region provided for the bag opening, adjacent to the sealing
Die Beutelfrontwand 12 ist auf der gegen die Innenseite der Beutelverpackung 10 gerichteten Seite gegen die ebenfalls gegen die Innenseite der Beutelverpackung 10 gerichtete Seite der Beutelrückwand 14 siegelbar. Die gegen die Aussenseite gerichtete Seite der Beutelfrontwand 12 weist eine Aussenschicht 28 auf. In einer die Spitze 27 der Siegelzone 26 einschliessenden Auslaufzone 30 für das Füllgut 11 haftet die Aussenschicht 28 mit einer gegenüber der Haftkraft ausserhalb der Auslaufzone 30 geringeren Haftkraft auf dem darunterliegenden Teil 29 der Beutelfrontwand 12 oder ist in der Auslaufzone 30 vom darunterliegenden Teil 29 der Beutelfrontwand 12 losgelöst.The
in der in
Wird die mit Füllgut 11 gefüllte Beutelverpackung 10 von Aussen mit Druck beaufschlagt, was im praktischen Gebrauch z. B. durch Zusammenpressen der Beutelverpackung 10 zwischen Daumen und Zeigfinger einer Hand durchgeführt wird, so erfolgt eine Faltenbildung an der Beutelverpackung 10 derart, dass die Zugspannung, welche auf die gegeneinander gesiegelten Beutelwände beim Übergang vom Füllgutraum 13 zur Siegelverbindung wirkt, an der Spitze 27 der Siegelzone 26 ein Maximum erreicht. Beim Überschreiten der Bruchdehnung des durch die verminderte oder fehlende Haftung der Aussenschicht 28 in der Auslaufzone 30 geschwächten, unter der Aussenschicht 28 liegenden Teils 29 der Beutelfrontwand 12 erfolgt ein Bruch bzw. ein lokales Durchtrennen dieses Teils 29 der Beutelfrontwand 12 unter Bildung eines Öffnungsschlitzes 38 (
Nach dem lokalen Durchtrennen des unter der Aussenschicht 28 liegenden Teils 29 der Beutelfrontwand 12 im Bereich der Spitze 27 der Siegelzone 26 tritt bei fortgesetzter Druckbeaufschlagung der Beutelverpackung 10 Füllgut 11 aus dem Füllgutraum 13 durch den Öffnungsschlitz 38 in einen von dem unter der Aussenschicht 28 liegenden Teil 29 der Beutelfrontwand 12 und der Aussenschicht 28 in der Auslaufzone 30 gebildeten Zwischenraum oder Kanal 40 ein und verlässt die Beutelverpackung 10 durch eine Auslauföffnung 42, die an einer Randkante 17 des Siegelrandes 16 von dem unter der Aussenschicht 28 liegenden Teil 29 der Beutelfrontwand 12 und der Aussenschicht 28 gebildet wird.After local severing of lying under the
Der Öffnungsmechanismus der in den
Bei einer in
Bei einer in
Das freie Ende 27' der streifenförmigen Siegelzone 26' ist hier entsprechend der in den
Bei der in
An Beutelverpackungen mit einer von einem Siegelrand abragenden, der Erzeugung eines Öffnungsschlitzes in der Verpackungsfolie dienenden streifenförmigen Siegelzone 26' wurden Berstversuche durchgeführt und der Berstdruck in Abhängigkeit von der Entfernung X der streifenförmigen Siegelzone 26' von einer Beutelseitenwand und vom Abstand Y des freien Endes 27' der streifenförmigen Siegelzone 26' vom Siegelrand 16 bestimmt. Als Verpackungsfolie zur Herstellung von 4-Siegelrandbeuteln diente ein Laminat mit dem AufbauTo bag packages with a protruding from a sealing edge, the production of an opening slot in the packaging film serving strip-shaped Sealing zone 26 'were carried out bursting tests and the bursting pressure as a function of the distance X of the strip-shaped sealing zone 26' of a bag side wall and the distance Y of the free end 27 'of the strip-shaped sealing zone 26' determined by the sealing
PET 12 µm / AI 8 µm / PE 70 µm
- PET
- Polyethylenterephthalat
- AI
- Aluminiumfolie
- PE
- Polyethylen
- PET
- polyethylene terephthalate
- AI
- aluminum foil
- PE
- polyethylene
Für die Beutelfrontwand 12 und die Beutelrückwand 14 wurde das gleiche Laminat verwendet, gesiegelt wurde PE gegen PE. Die umlaufende Siegelnaht 24 und die streifenförmige Siegelzone 26' wurden als korrugierte oder wellenförmige Siegelung mit einer in Laufrichtung der Siegelnaht 24 bzw. in Streifenlängsrichtung angeordneten Wellung und vergleichsweise als flache Siegelung durchgeführt. Der Druckaufbau im Beutel bis zum Berstdruck erfolgte mit einer Geschwindigkeit von 50 mbar/sec. Die Ergebnisse der Berstversuche sind in Tabelle 1 zusammengestellt und in
Mit den Berstversuchen lassen sich die einem möglichst geringen Berstdruck entsprechenden optimale Dimensionen und Anordnungen der streifenförmigen Siegelzonen 26' auf einfache Weise ermitteln.With the bursting tests, the optimum dimensions and arrangements of the strip-shaped sealing zones 26 'corresponding to the lowest possible bursting pressure can be determined in a simple manner.
In den
Bei der in
Die in
Für die Beutelfrontwand 12 und die Beutelrückwand 14 kann die gleiche Verpackungsfolie verwendet werden. Das Auftragen des zur Herstellung der peelbaren Bereiche eingesetzten zweiten Verbindungsmaterials 56 kann in einem Druckverfahren z. B. als Registerdruck erfolgen.For the
Bei einer in
In der in
Die in
Nach dem lokalen Durchtrennen des unter der Aussenschicht 28 liegenden Teils 29 der Beutelfrontwand 12 im Bereich der Spitze 27" der Siegelzone 26" tritt bei fortgesetzter Druckbeaufschlagung der Beutelverpackung 10 Füllgut 11 aus dem Füllgutraum 13 durch den Öffnungsschlitz 38 in den von dem unter der Aussenschicht 28 liegenden Teil 29 der Beutelfrontwand 12 und der Aussenschicht 28 in der Auslaufzone 30 gebildeten Zwischenraum oder Kanal 40 ein und verlässt die Beutelverpackung 10 durch die in der Aussenschicht 28 durch die Schwächungslinie bzw. den Trennschnitt 37 gebildete, schlitzförmige Öffnung.After local severing of lying under the
Unter den Begriff der Beutelverpackung 10 fällt auch eine Verpackung, bei der die Beutelrückwand 14 als flexibler, z. B. durch Thermo- oder Kaltformen hergestellter Behälter mit einer umlaufenden Siegelfläche ausgestaltet ist und die Beutelfrontwand 12 als Deckel gegen die Siegelfläche gesiegelt ist.The
Claims (14)
- Bag packaging comprising a front bag wall (12) and a rear bag wall (14) formed from at least one flexible packaging film for packaging a flowable product (11), with sealed edges (16, 18, 20, 22) joining the front bag wall (12) and the rear bag wall (14) via a sealed seam (24), formed to circulate on the edges of the bag packaging, and with hand-operable opening means for opening and removing the product (11), wherein the sealed seam (24) is widened with a free end (27, 27 ') that is furthest away from the sealed edge (16) in the front bag wall (12), in a region provided for opening the bag on a sealed edge (16) and adjoining the latter, to form a sealed zone (26, 26') directed away from the sealed edge (16) or the front bag wall (12) has a sealed zone (26 "), arranged at a distance to the sealed seam, with a tip (27 "), characterized in that at least the front bag wall (12) has an outer layer (28) on the side directed against the outer face of the bag packaging (10), the outer layer (28) and the part (29) of the front bag wall (12), located below the outer layer (28) delimiting an outlet zone (30) for the product (11), in a surface region which encloses the free end (27, 27 ') or the tip (27 ") of the sealed zone (26, 26', 26 "), the outlet zone (30) extending as far as an edge rim (17) of the sealed edge (16) or the outer layer (28) in the surface region of the outlet zone (30) having a tear line or a separating cut (37) as exit point for the product (11) out of the bag packaging, the outlet zone (30) being delimited by boundary lines (32, 33, 34, 36), which form a transition of the outer layer (28) from a non-separable connection to the underlying part (29) of the front bag wall (12) to a peelable or non-adhering connection in the outlet zone (30), so that when pressure is applied to the bag packaging filled with product (11), a crack (38) forms in the region of the free end (27, 27 ') or the tip (27 ") of the sealed zone (26, 26', 26 ") in the part (29) of the front bag wall (12) located below the outer layer (28), through which the product (11) can enter the outlet zone (30).
- Bag packaging according to claim 1, characterized in that the sealed zone (26) generally has the form of a triangle with a base (c) lying parallel to the sealed edge (16) and sides (a, b) forming a tip (27) at distance (e) to the sealed edge (16).
- Bag packaging according to claim 1, characterized in that the sealed seam (24) is widened with a free end (27') through a sealed zone (26 ') projecting at right angles from the sealed edge (16) in the form of a strip.
- Bag packaging according to claim 1, characterized in that roughly in the middle of the front bag wall (12) a sealed zone (26 ") is arranged in the form of an equalsided triangle with a base (c) lying parallel to a sealed edge (16, 18, 20, 22) and a tip (27 ") directed away from the sealed edge (16, 18, 20, 22).
- Bag packaging according to claim 1, characterized in that the outer layer (28) in the outlet zone (30) adheres with an adhesive force, lower in relation to the adhesive force outside of the outlet zone (30), to the part (29) of the front bag wall (12) located below the outer layer (28), and can be peeled from this.
- Bag packaging according to claim 1, characterized in that the outer layer (28) in the outlet zone (30) is detached from the part (29) of the front bag wall (12) located below the outer layer (28).
- Bag packaging according to claim 1, characterized in that the outer layer (28) in the outlet zone (30) is detached from the part (29) of the front bag wall (12) located below the outer layer (28) as far as a region in the sealed edge (16) and in the region in the sealed edge (16) adheres with an adhesive force lower in relation to the adhesive force outside of the outlet zone (30) to the part (29) of the front bag wall (12) located below the outer layer (28), and can be peeled from this.
- Bag packaging according to claim 1, characterized in that the outlet zone (30) is delimited by two boundary lines (34, 36) generally running parallel to one another and vertically to the sealed edge (16).
- Bag packaging according to claim 1, characterized in that the outlet zone (30) is delimited by two boundary lines (34', 36') preferably running towards an end of the sealed edge (16) in the vicinity of a bag corner.
- Bag packaging according to any one of claims 1 to 9, characterized in that the front bag wall (12) is built up from a sealing layer (50), a carrier layer (52) and the outer layer (28), arranged on the carrier layer (52).
- Bag packaging according to claim 10, characterized in that the sealing layer (50) contains polyethylene (PE), polypropylene (PP), blends or coextrudates of PE and PP or ionomers, or consists of these.
- Bag packaging according to claim 10, characterized in that the carrier layer (52) contains a foil made of metal, particularly aluminum or an aluminum alloy or consists of this.
- Bag packaging according to claim 10, characterized in that the outer layer (28) contains a biaxially oriented plastic film made of polyester, particularly polyethylene terephthalate (PET), polypropylene (PP) or polyamide (PA), or paper coated with plastic or consists of these.
- Bag packaging according to claim 10, characterized in that the sealing layer (50) comprises the carrier layer.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES10405188T ES2430464T3 (en) | 2010-10-08 | 2010-10-08 | Bag packaging |
PL10405188T PL2439149T3 (en) | 2010-10-08 | 2010-10-08 | Bag packaging |
EP10405188.3A EP2439149B1 (en) | 2010-10-08 | 2010-10-08 | Bag packaging |
PT104051883T PT2439149E (en) | 2010-10-08 | 2010-10-08 | Bag packaging |
RU2013120954/12A RU2563779C2 (en) | 2010-10-08 | 2011-10-03 | Packaging bag |
BR112013008206-2A BR112013008206B1 (en) | 2010-10-08 | 2011-10-03 | BAG PACKING |
CA2811060A CA2811060A1 (en) | 2010-10-08 | 2011-10-03 | Pouch-type packaging |
MX2013003453A MX2013003453A (en) | 2010-10-08 | 2011-10-03 | Bag packaging. |
PCT/EP2011/004912 WO2012045424A1 (en) | 2010-10-08 | 2011-10-03 | Bag packaging |
US13/825,990 US20130209003A1 (en) | 2010-10-08 | 2011-10-03 | Bag packaging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10405188.3A EP2439149B1 (en) | 2010-10-08 | 2010-10-08 | Bag packaging |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2439149A1 EP2439149A1 (en) | 2012-04-11 |
EP2439149B1 true EP2439149B1 (en) | 2013-07-17 |
Family
ID=43589625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10405188.3A Active EP2439149B1 (en) | 2010-10-08 | 2010-10-08 | Bag packaging |
Country Status (10)
Country | Link |
---|---|
US (1) | US20130209003A1 (en) |
EP (1) | EP2439149B1 (en) |
BR (1) | BR112013008206B1 (en) |
CA (1) | CA2811060A1 (en) |
ES (1) | ES2430464T3 (en) |
MX (1) | MX2013003453A (en) |
PL (1) | PL2439149T3 (en) |
PT (1) | PT2439149E (en) |
RU (1) | RU2563779C2 (en) |
WO (1) | WO2012045424A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011011883B4 (en) * | 2011-02-21 | 2015-09-03 | Scaldopack Sprl. | Packaging for a liquid product and method and device for its production |
WO2016018694A2 (en) | 2014-07-28 | 2016-02-04 | Cryovac, Inc. | Dispensing system, packaging system, package, closure system, dispensing gun system, method of making a package, and method of dispensing a product |
US10486845B2 (en) * | 2015-06-29 | 2019-11-26 | Dow Global Technologies Llc | Process for in situ production of microcapillary dispensing system for flexible pouch |
BR112017025931A2 (en) * | 2015-06-29 | 2018-08-14 | Dow Global Technologies Llc | process for producing flexible container with microcapillary dispensing system |
DK178929B9 (en) * | 2015-12-15 | 2017-06-26 | Radiometer Medical Aps | A Bag Containing a Reference Fluid |
US10759579B2 (en) * | 2017-11-30 | 2020-09-01 | Amaris Enterprises, Llc | Product dispensers |
USD896634S1 (en) | 2019-01-29 | 2020-09-22 | Golden State Foods Corp. | Container |
USD896633S1 (en) | 2019-01-29 | 2020-09-22 | Golden State Foods Corp. | Container |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3608709A (en) * | 1969-09-08 | 1971-09-28 | Wayne Rogers V | Multiple compartment package |
US3635376A (en) * | 1970-06-05 | 1972-01-18 | Hellstrom Harold R | Quick-open flexible package |
US4328912A (en) * | 1978-06-26 | 1982-05-11 | Haggar Theodore | Self-contained valved package |
US4872556A (en) * | 1987-11-02 | 1989-10-10 | Bert Farmer | Packaging device with burst-open seal |
US4890744A (en) * | 1988-10-28 | 1990-01-02 | W. A. Lane, Inc. | Easy open product pouch |
US5018646A (en) * | 1988-11-23 | 1991-05-28 | S. C. Johnson & Son, Inc. | Squeezable fluid container |
JPH06211279A (en) * | 1991-01-21 | 1994-08-02 | Toyo Bussan Kk | Disposable container |
EP0726863B1 (en) * | 1993-11-01 | 1998-12-09 | The Procter & Gamble Company | Self-closing liquid dispensing package |
JP4475553B2 (en) * | 2000-04-06 | 2010-06-09 | 大日本印刷株式会社 | Packaging bag for microwave oven and packaging material used therefor |
WO2001017875A1 (en) * | 1999-09-02 | 2001-03-15 | Snap Pak Industries (Aust) Pty Ltd | Dispensing sachet by bending and method of sachet manufacture |
US6596355B1 (en) * | 2000-04-06 | 2003-07-22 | Dai Nippon Printing Co., Ltd. | Sealable package for heating in a microwave oven |
US7063228B2 (en) * | 2001-11-16 | 2006-06-20 | Dai Nippon Printing Co., Ltd. | Packaging bag |
US8506165B2 (en) * | 2008-01-15 | 2013-08-13 | Hosokawa Yoko Co., Ltd. | Easily openable packaging bag |
-
2010
- 2010-10-08 EP EP10405188.3A patent/EP2439149B1/en active Active
- 2010-10-08 ES ES10405188T patent/ES2430464T3/en active Active
- 2010-10-08 PL PL10405188T patent/PL2439149T3/en unknown
- 2010-10-08 PT PT104051883T patent/PT2439149E/en unknown
-
2011
- 2011-10-03 US US13/825,990 patent/US20130209003A1/en not_active Abandoned
- 2011-10-03 CA CA2811060A patent/CA2811060A1/en not_active Abandoned
- 2011-10-03 RU RU2013120954/12A patent/RU2563779C2/en active
- 2011-10-03 WO PCT/EP2011/004912 patent/WO2012045424A1/en active Application Filing
- 2011-10-03 MX MX2013003453A patent/MX2013003453A/en not_active Application Discontinuation
- 2011-10-03 BR BR112013008206-2A patent/BR112013008206B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR112013008206A2 (en) | 2016-06-21 |
WO2012045424A1 (en) | 2012-04-12 |
CA2811060A1 (en) | 2012-04-12 |
US20130209003A1 (en) | 2013-08-15 |
ES2430464T3 (en) | 2013-11-20 |
BR112013008206B1 (en) | 2020-09-29 |
MX2013003453A (en) | 2013-06-28 |
RU2563779C2 (en) | 2015-09-20 |
RU2013120954A (en) | 2014-11-20 |
PL2439149T3 (en) | 2014-01-31 |
EP2439149A1 (en) | 2012-04-11 |
PT2439149E (en) | 2013-10-14 |
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