EP2345582A1 - Procédé de fabrication d'un sac d'emballage - Google Patents

Procédé de fabrication d'un sac d'emballage Download PDF

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Publication number
EP2345582A1
EP2345582A1 EP10405005A EP10405005A EP2345582A1 EP 2345582 A1 EP2345582 A1 EP 2345582A1 EP 10405005 A EP10405005 A EP 10405005A EP 10405005 A EP10405005 A EP 10405005A EP 2345582 A1 EP2345582 A1 EP 2345582A1
Authority
EP
European Patent Office
Prior art keywords
bag
seam
transverse
spout
longitudinal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10405005A
Other languages
German (de)
English (en)
Inventor
Daniel Bossel
Jean-Luc Rick
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.)
Amcor Flexibles Kreuzlingen AG
Original Assignee
Amcor Flexibles Kreuzlingen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amcor Flexibles Kreuzlingen AG filed Critical Amcor Flexibles Kreuzlingen AG
Priority to EP10405005A priority Critical patent/EP2345582A1/fr
Priority to PCT/EP2011/000011 priority patent/WO2011085941A1/fr
Publication of EP2345582A1 publication Critical patent/EP2345582A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • 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
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
    • B65D75/44—Individual packages cut from webs or tubes
    • B65D75/48—Individual packages cut from webs or tubes containing liquids, semiliquids, or pastes, e.g. cushion-shaped packages
    • B65D75/50—Tetrahedral packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2056—Machines for packages of special type or form

Definitions

  • the invention relates to a method for the production of bag packaging units from a flexible film material, in which method from one of two side edges limited film web over a longitudinal sealing seam continuously a hose body is formed and from the hose body by alternately transversely to the longitudinal sealing seam mounted first transverse sealing seams and transversely to the longitudinal sealing seam and are formed substantially perpendicular and spaced from the first transverse sealing seams second transverse sealing seams tetrahedral-shaped packaging bag, wherein the second transverse sealing seams are placed in the region of a tetrahedral corner of the bag so that a substantially tubular ausgestalteter pouring part is formed.
  • tetrahedron-shaped packaging bag made of plastic coated cardboard for drinks known.
  • For the beverage removal of the packaging bag is provided at one point, for example, with a closed by a film opening that can be pierced by a drinking straw.
  • Other bags may be torn open along a perforation line to form a pouring opening.
  • tetrahedral packaging bags made of a flexible film material for chocolate masses coated with a sugar mass are known. For opening, as in many pouches, there is a score notch in a sealed seam.
  • EP-A-1 547 935 is a method of the type mentioned for producing tetrahedral packaging bag made of a flexible sheet material known.
  • the bag In the area of a tetrahedral corner, the bag is provided with a substantially tubular spout protruding from the bag and closed at its free end.
  • the invention has for its object to provide a method of the type mentioned that bag packaging units with at least two bag chambers can be made in a simple manner continuously from a film web.
  • a hose By connecting the two side edges over a first longitudinal seam, a hose is continuously formed and the tube is divided into at least two partial tubes via at least one further longitudinal sealing seam, and from the partial tubes by a common first transverse sealing seam and one each substantially perpendicular and at a distance from the first Cross-seam seam attached to each partial hose second transverse seal seam formed a bag packaging unit with at least two interconnected via the at least one further longitudinal sealing seam packaging bags each having a bag chamber.
  • the interconnected packaging bags may contain the same or different contents.
  • the preferred products for these packaging containers include especially drinks of all kinds, semi-liquid products such. Yogurt, and free-flowing solids, e.g. Corn, semolina and the like. Grainy foods, coffee in bean and powder form, as well as washing powder.
  • a first part hose is formed continuously, and optionally by connecting the film web over at least one area between the first longitudinal seam and the second side edge and over the second side edge alternately with the first partial tube via a second longitudinal sealing seam and the first longitudinal sealing seam at least a second partial tube is formed, and from the partial tubes is by a common first transverse seal and a substantially perpendicular and at a distance for the first transverse sealing seam attached, with their ends adjacent to the longitudinal sealing seams common second transverse sealing seam formed a bag packaging unit in the form of a subdivided into at least two bag chambers packaging bag.
  • the bag chambers of this packaging bag are particularly suitable for receiving different contents which are to be mixed only during use or consumption.
  • the preferred fillers for these packaging containers are mainly liquid, semi-liquid and pasty Golf
  • a packaging bag With the arrangement of a protruding from the bag spout in the region of a tetrahedron a packaging bag is created with a multifunctional opening that is suitable both as a drinking opening and for the metered removal of liquids and free-flowing products.
  • the advantages of the tetrahedral form of the bag which sits well in the hand and is extremely dimensionally stable and stable.
  • Another advantage is that a once opened bag with the tetrahedron surface opposite the pouring part on a pad, e.g. On a table, can be turned off without leaking contents, since in this position, the pouring opening is at the highest point of the bag.
  • the tubular discharge part is tapered conically in the pouring direction pointing away from the tetrahedral corner of the bag.
  • the conical design of the pouring part has the advantage that, for example, when opening with a pair of scissors, the cross-section of the by cutting away the closed end of the Ausgiessteils transversely to the pouring spout resulting opening becomes larger with increasing distance of the cut from the free end of the spout. In this way, a suitable for a particular purpose metering opening can be set individually.
  • At least one tearing notch extending transversely to the pouring direction may be provided, with at least two tearing notches arranged at different distances from the closed free end of the pouring part being arranged in a particularly expedient embodiment of the pouring part for providing metering openings of different cross section could be.
  • weakening lines can be provided in addition to the tear scores. The lines of weakness go from the top of the tear scores and revolve around the spout.
  • the pouring part protruding from a tetrahedral corner of the bag can be folded back, for example, against one of the bag surfaces in the case of an unopened packaging bag and fixed in the folded-down position by means of a pressure-sensitive adhesive arranged on the bag surface or on the pouring part.
  • a pressure-sensitive adhesive arranged on the bag surface or on the pouring part.
  • the packaging bag when using the packaging bag as a beverage bag, it may prove to be expedient in the pouring a stiffening element, preferably a pipe piece made of plastic, to arrange.
  • the tube piece assumes the function of a drinking straw in a beverage bag.
  • the pouring part is not fixedly connected to the pipe piece from its closed end to a tear notch or tearing line, so that when the beverage bag is opened the pouring part can be removed from the bag via the pipe piece after separation.
  • the germ-free pipe section is exposed and can be performed without contact directly to the mouth.
  • the transverse sealing seam is preferably laid in such a way that a pouring part tapering conically away from the bag is produced.
  • At least one tearing notch extending transversely to the pouring direction can be arranged in the transverse sealing seam in the region of the closed free end of the pouring part.
  • At least two arranged at different distances from the closed free end of the spout part scoring are conveniently arranged.
  • the pouring part circumferential weakening lines can be arranged.
  • a stiffening element preferably a pipe section made of a plastic material, can be arranged in the pouring part.
  • the bag walls can collapse or collapse in the region of the pouring part and in this way constrict or even close the pouring part, thereby greatly hindering the pouring out of liquid and pourable bulk goods in particular.
  • This disadvantage can be avoided in that the opening cross section in the region of the transition from the bag into the pouring part through a transverse to one of the tetrahedral corner weg doden pouring direction extending reinforcing element in the film material of the bag is stabilized.
  • the reinforcing element is preferably formed from a folded seam consisting of the film material and projecting from a tetrahedral surface of the bag, wherein the folded seam is expediently formed by sealing the film material against itself.
  • the reinforcing member may also be applied by a deposited on the sheet material rib of a plastic material, such as. As an adhesive or hot melt, be formed.
  • the reinforcing element preferably has a substantially linear course.
  • the reinforcing element may have a rectilinear or a curved course.
  • the reinforcing element may also be constructed of substantially point-shaped elements.
  • the tubular pouring part has a partial sealing seam extending essentially parallel to the pouring direction and passing into a sealing seam of the bag in the region of the tetrahedral corner of the bag, and the reinforcing element extends in a tetrahedral surface opposite the sealing seams.
  • the pouring part has at least one tear notch extending transversely to the pouring direction.
  • the tear notch can pass into a line of weakness surrounding the pouring part.
  • the pouring part is expediently foldable or hinged and preferably fixable by means of a pressure-sensitive adhesive to the bag in the folded-down or folded position.
  • the spout can also by means of a between bag wall and spout glued or sealed strip with integrated permanent adhesive layer on the bag in the folded or folded position can be fixed and closed again.
  • the pouring part projecting from a tetrahedral corner of the bag according to the invention can be folded back, for example, against one of the bag surfaces and fixed in the folded-down position by means of a pressure-sensitive adhesive arranged on the bag surface or on the pouring element.
  • a pressure-sensitive adhesive arranged on the bag surface or on the pouring element.
  • the spout is relatively well protected against mechanical damage during transport and storage of the packaging bag.
  • the pouring part can also be configured via sealing areas to a narrowed pouring channel, optionally with a valve effect.
  • the pouring part can be narrowed via sealing areas to a passage opening with valve action.
  • the passage opening is configured as a slot which can be expanded by filling material when the pressure is exerted on the bag and automatically closes without pressure.
  • the bags can also be easily equipped with a reclosable pourer in the spout.
  • a reclosable pourer in the spout.
  • the drinking straw for example, be integrated into the packaging bag, that he is under elastic tension and partially protrudes from the bag after opening the bag.
  • a drinking straw can z. B. also be combined with a screw-pourer, so that even in this case a simple reclosure after first opening is easily possible.
  • a film web 10 bounded by two side edges 12, 14 for producing a two-bag pouch packaging unit is unrolled from a supply roll (not shown in the drawing) and formed in a device (not shown) to form two longitudinal sealing seams 16 arranged in the running direction of the film web 10; 18 continuously formed into a two partial hoses 22, 24 comprising tubular body 20.
  • Fig. 1 is the direction of the film web 10 perpendicular to the plane or projection surface.
  • the two side edges 12, 14 of the film web 10 are sealed in a known manner to form a tube 15 against each other (step b).
  • the seal can be done inside against the inside or inside against the outside of the film web.
  • the tube 15 formed by the first longitudinal sealing seam 16 is transferred through the second longitudinal sealing seam 18 into the two tubular tubes 20 which are connected to one another via the second longitudinal sealing seam 18 (step c).
  • Fig. 2 tube body 20 shown is now closed on one side over a transversely to the longitudinal sealing seams 16, 18 first transverse seam 28 (step d).
  • common transverse seam 28 may also be two individual zueinender standing sealed seams 28 A, 28 B for the two partial tubes 22, 24 or a corresponding angled, on both partial tubes 22, 24 reaching common sealing seam ( Fig. 3 ).
  • liquid, pasty and / or free-flowing contents A, B can be filled in the indicated arrow direction into the vertically guided partial tubes 22, 24.
  • B is at a distance from the first transverse seam 28 per each partial tube 22, 24 individually occlusive second transverse seal 30 A, 30 B attached (step e), wherein each successive first and second transverse sealing seams 28, 30 to an angle of 90 ° are arranged rotated against each other.
  • two tetrahedral bags result, which are connected to one another via the second longitudinal sealing seam 18. It can also first the second transverse seam 30 A, 30 B laid, then each partial tube 22, 24 filled with the contents A, B and then the first transverse sealing seam 28 are attached.
  • a bag packaging unit with two tetrahedral bags 34 A, 34 B, each with a pouring part 32 A, 32 B.
  • the bags are connected to each other via the second longitudinal seam 18.
  • the second longitudinal sealing seam 18 may have in its longitudinal seam center a weakening line 38, for example in the form of a perforation line, so that the two bags can be separated from each other in a simple manner if required.
  • the second transverse seam 30 is placed so that in the region of one of the formed tetrahedral corners a pouring part 32 is formed.
  • a first seam region 30 a extends in the pouring direction y of the pouring part 32, which is formed tubular in this way.
  • a second subregion 30b of the second transverse sealing seam 30 runs transversely to the pouring direction y and serves to close the pouring part 32 tapering conically at its free end 36.
  • the pouring part In order to avoid mechanical damage to the pouring part 32 during transport and during storage and to prevent inadvertent leakage of contents when the bag is open, the pouring part can be folded or folded about an axis e transversely to the pouring direction y.
  • a pressure-sensitive adhesive 44 is provided, which is arranged in the present example in the form of a pressure-sensitive adhesive strip on the spout 32.
  • conically tapered pouring part 32 are arranged in the portion 30 a of the transverse seam at different distances a, b, c from the closed end 36 transversely to the pouring y extending tearing grooves 40 a, 40 b, 40 c.
  • a pouring part 32 circumferential line of weakness 42 a, 42 b, 42 c for example in the form of a not the entire thickness of the film material penetrating cut, or in the form of along a line arranged, the film material in thickness not completely penetrating perforations.
  • a stiffening element in the form of a conically tapered pipe section 44 made of a plastic material.
  • bag 34 (34 A, 34 B) is arranged in place of the narrow second transverse seam 30, a wide seal area.
  • This broad Sealing region 48 corresponds to a in the production of the pouring part 32 according to Fig. 4 resulting film section, which, instead of separated, continue to be used.
  • the wide seal area 48 comprises an unsealed area as a cavity 50 for a drinking straw 52.
  • the cavity may of course have any shape and serve to accommodate any objects.
  • two holes 54, 56 provided, for example, for suspending the bags in a store shelf, are punched out.
  • the pipe section 44 is not fixedly connected from the free end of the spout 32 to a tear notch 40 B with the spout 32.
  • the pipe section 44 is separated from the rest of the packaging bag at the tear notch 40 b and passed over the tube piece 44 as a separating part 58 (FIG. Fig. 11 ) away.
  • This free end 60 of the pipe section 44 assumes the function of a germ-free drinking straw in a beverage bag, which can be performed after tearing the separation part 58 directly to the mouth.
  • Beverage bags with a pouring opening formed in this way are suitable, for example, for use in areas with poor hygienic conditions and correspondingly high risk of infection.
  • a diaphragm valve 66 is sealed in the tetrahedral surface 64.
  • a diaphragm valve 66 may, for. B. when the bag serves as a package for present in the form of beans or in ground form coffee. In this case, a gas pressure building up in the bag interior is counteracted, in that gases can escape to the outside.
  • the diaphragm valve 66 prevents gas passage of z. B. oxygen from outside to inside.
  • the diaphragm valve 66 is sealed to the film web 10 at a predetermined location, for example, before the hose is formed.
  • the folded seam 62 extends in a straight line on the bag outer side. Dashed lines show a folded seam 62 'with a curved course.
  • the course of the folded seam 60, 60 'but may have any shape and depends on the product to be filled.
  • the seam 60, 60 ' may also be attached to the inside of the bag. Another possibility is to press foil material from the outside inwards with a tool and to seal it as an inwardly directed seaming seam.
  • a rib of plastic as a reinforcing element in molten form on the outside or inside of the bag.
  • the material used for the rib may be, for example, an adhesive or a hotmelt.
  • Other options for local stiffening arise z. B. with an embossing or by the use of a stiffening ink.
  • the reinforcing element in the form of a seam 60, 60 'or a correspondingly arranged plastic rib is preferably applied simultaneously with the bag production.
  • a passage opening 74 may be arranged with a type of valve action.
  • the sealing areas 72, 74 are z. B. arranged so that a slot results as a passage opening 74, which opens only by pressure on the bag and passes through the product. When removing the pressure, the slot closes automatically and prevents leakage of filling material.
  • the pouring part 32 can be folded or folded over an axis e transversely to the pouring direction y.
  • a pressure-sensitive adhesive 44 is provided, which is arranged in the present example in the form of a pressure-sensitive adhesive strip on the spout 32.
  • a strip 76 with integrated permanent adhesive layer 78 can also be glued or sealed between the folded pouring part 32 and the bag wall 80.
  • the strip 76 consists for example of two outer layers 82, 84 of a polyolefin, such as polyethylene, with the arranged between the two outer layers 82, 84 permanent adhesive layer 78, the z. B. may consist of a hotmelt.
  • a reclosability of the bag can be achieved by a simple choice of material.
  • a film web 10 bounded by two side edges 12, 14 for producing a bag packing unit consisting of a bag with two chambers is unrolled from a supply roll (not shown in the drawing) and arranged in a device (not shown) forming two in the direction of the film web 10 L josssiegelnähten 16, 18 continuously to a two partial tubes 22, 24 comprising tubular body 20 formed.
  • Fig. 17 is the direction of the Film web 10 perpendicular to the plane or projection surface.
  • the first side edge 12 of the film web 10 is sealed against the film web 10 to form a first partial tube 22 (step b).
  • the second side edge 14 is sealed to form the second longitudinal seam 18 against the first partial tube 22, whereby the second partial tube 24 is formed.
  • the two part of the tubes 22, 24 common film web part 11 between the two longitudinal sealing seams 16, 18 forms a partition, which divides the hose body 20 in the two partial tubes 22, 24 (step c).
  • Fig. 18 shown, divided by the common film web part 11 in the two partial tubes 22, 24 tubular body 20 is now closed on one side transverse to the longitudinal sealing seams 16, 18 first transverse sealing seam 28 (step d).
  • liquid and / or free-flowing contents A, B can be filled into the vertically guided partial tubes 22, 24 in the indicated arrow direction. After filling with the contents A, B is at a distance to the first transverse seam 28 a the two part tubes 22, 24 with the arranged between these film web part 11 closing second transverse seam 30 attached (step e), wherein each successive first and second transverse sealing seams 28, 30th be arranged rotated by an angle of 90 ° to each other.
  • a tetrahedron results, which is subdivided into two chambers by a dividing wall formed from the film web part 11. It may also first the second transverse seam 30 laid, then each partial tube 22, 24 filled with the contents A, B and then the first transverse sealing seam 28 are attached.
  • a bag packaging unit is made of a tetrahedral bag 34 with a pouring part.
  • the bag 34 is divided over the serving as a partition film web part 11 into two chambers 34 A, 34 B.
  • the second transverse seam 30 is placed so that in the region of one of the formed tetrahedral corners a pouring part 32 is formed.
  • a first seam region 30 a extends in the pouring direction y of the pouring part 32, which is formed tubular in this way.
  • a second subregion 30b of the second transverse sealing seam 30 runs transversely to the pouring direction y and serves to close the pouring part 32 tapering conically at its free end 36.
  • pouch packaging units consisting of three or more tetrahedral bags or of a tetrahedral bag with three or more chambers according to the methods described above.
  • a pouch packaging unit consisting of three tetrahedral bags, in addition to the two sub-tubes in step c in FIG Fig. 1 by attaching a further longitudinal sealing seam 19 to produce a further partial tube 25.
  • a pouch packaging unit consisting of a tetrahedral bag with three chambers, in addition to the two sub-tubes in step c in FIG Fig. 17 by forming another partition wall 13 to produce a further partial tube 25.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP10405005A 2010-01-13 2010-01-13 Procédé de fabrication d'un sac d'emballage Withdrawn EP2345582A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10405005A EP2345582A1 (fr) 2010-01-13 2010-01-13 Procédé de fabrication d'un sac d'emballage
PCT/EP2011/000011 WO2011085941A1 (fr) 2010-01-13 2011-01-05 Procédé de fabrication d'un sachet d'emballage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10405005A EP2345582A1 (fr) 2010-01-13 2010-01-13 Procédé de fabrication d'un sac d'emballage

Publications (1)

Publication Number Publication Date
EP2345582A1 true EP2345582A1 (fr) 2011-07-20

Family

ID=42199632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10405005A Withdrawn EP2345582A1 (fr) 2010-01-13 2010-01-13 Procédé de fabrication d'un sac d'emballage

Country Status (2)

Country Link
EP (1) EP2345582A1 (fr)
WO (1) WO2011085941A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1153846A1 (fr) * 1998-12-30 2001-11-14 Terolasa, S.L. Procede et installation pour la fabrication et le remplissage de sacs a multiples cavites et sac ainsi obtenu
EP1547935A1 (fr) 2003-12-23 2005-06-29 Alcan Technology & Management Ltd. Sachet d'emballage et méthode pour sa fabrication
US20070127853A1 (en) * 2005-01-14 2007-06-07 Frito-Lay North America, Inc. Method for Making a Multi-Compartment Microwavable Package Having a Permeable Wall Between Compartments

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1153846A1 (fr) * 1998-12-30 2001-11-14 Terolasa, S.L. Procede et installation pour la fabrication et le remplissage de sacs a multiples cavites et sac ainsi obtenu
EP1547935A1 (fr) 2003-12-23 2005-06-29 Alcan Technology & Management Ltd. Sachet d'emballage et méthode pour sa fabrication
US20070127853A1 (en) * 2005-01-14 2007-06-07 Frito-Lay North America, Inc. Method for Making a Multi-Compartment Microwavable Package Having a Permeable Wall Between Compartments

Also Published As

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WO2011085941A1 (fr) 2011-07-21

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