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EP3170765A2 - Sachet d'emballage en film muni d'une poignee - Google Patents

Sachet d'emballage en film muni d'une poignee Download PDF

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Publication number
EP3170765A2
EP3170765A2 EP16002012.9A EP16002012A EP3170765A2 EP 3170765 A2 EP3170765 A2 EP 3170765A2 EP 16002012 A EP16002012 A EP 16002012A EP 3170765 A2 EP3170765 A2 EP 3170765A2
Authority
EP
European Patent Office
Prior art keywords
packaging bag
wall
head
carrying handle
handle
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Withdrawn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
EP16002012.9A
Other languages
German (de)
English (en)
Inventor
Detlef Dietz
Rudolf Haimerl
Thomas Rethschulte
Alfons Stahl
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.)
Bischof and Klein SE and Co KG
Original Assignee
Bischof and Klein SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bischof and Klein SE and Co KG filed Critical Bischof and Klein SE and Co KG
Publication of EP3170765A2 publication Critical patent/EP3170765A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/10—Handles formed of similar material to that used for the bag
    • 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
    • B65D75/54—Cards, coupons or other inserts or accessories
    • B65D75/56—Handles or other suspension means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
    • B31B70/266—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement involving gusset-forming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/864—Mounting separate handles on bags, sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/864—Mounting separate handles on bags, sheets or webs
    • B31B70/866—Applying handles on a moving web followed by longitudinal folding
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles

Definitions

  • the invention relates to a packaging bag made of plastic film according to the preamble of claim 1 and a method for its production.
  • Such packaging bags are conventionally used as large-volume packaging bags for home-use lightweight consumer goods such as diapers, sanitary napkins, toilet paper and the like, which are packed in parallelepiped form and tightly embedded in the packaging bag. Because of the little handy size of the appropriate packaging a carrying handle on one of the narrow longitudinal sides of the cuboid shape is provided, with which the packaged bulk container is to be worn at a limited height and width.
  • Packaging bag of the type considered here with a head folding wall in the folded state, a carrying handle in the area of the head fold wall and an open before filling, to be closed after filling with a bottom seam bottom are from the DE 42 24 639 A1 known, wherein the carrying handle can be formed from a double fold of the film of the head folding wall, which is welded together to delineate the handle and head wall fold with a longitudinal sealing seam.
  • the carrying handle can be formed from a double fold of the film of the head folding wall, which is welded together to delineate the handle and head wall fold with a longitudinal sealing seam.
  • the object of the invention is in contrast to provide a packaging betel, which is also to produce thin-walled film, while maintaining a handle-shaped form-retaining handle with an attractive contouring, the same time gives the filled packaging dimensional stability when this is worn hanging on the handle.
  • the packaging bag and its manufacturing method should be designed so that a predetermined dimensionally stable production is easy to perform and that the bag higher spreading forces and other loads can be exposed without risk by the contents during filling and during transport and handling the handle.
  • a packaging bag according to the preamble of claim 1 with the characterizing features of claim 1.
  • a separate strip of plastic film makes it possible to perform the head folding wall coherently instead of being sealed together from wall halves and thus to achieve a load capacity corresponding to the high strength of modern thin packaging films.
  • a handle strip can be one or more layers provided with respect to a pleasant handling of thicker, possibly softer or fiber-reinforced material. This is also a greater rigidity of the handle to achieve that extend essentially over the entire length of the head wall and fold substantially over the entire length with this is to be connected by a sealed seam on the grip forces of a - usually middle handle area are distributed towards the head fold wall towards the ends of the head fold wall.
  • the carrying handle extends only substantially but not completely over the entire length of the head folding wall and is sealed.
  • the carrying handle is provided in the entire length of the head folding wall and sealed together with the end edges of the head folding wall in the side separating weld.
  • the separating weld results in a relatively high-strength welded joint, as the material is melted through and not only superficially melted.
  • the carrying handle then attaches with the ends of its lower edge to the downwardly directed tips of the gusset between the unfolded halves of the head folding wall and the overlying portions of the side walls and pulls them up. It thus counteracts an appearance hanging down on both sides of the two ends, which is at least visually unfavorable.
  • the extension of the carrying handle over the entire length of the head folding wall is a prerequisite for a simple manufacture of the packaging bag, in which the carrying handle "endless", i. can be supplied as a continuous belt and is divided only with a final attachment of the side-separating welds.
  • the carrying handle can be placed exactly centered on the head fold wall or so over the center of the head fold wall survive that the sealing seam between head fold wall and carrying handle lies on one side of the fold line of the head folding wall and the exposed portion of the carrying handle on the other side.
  • the carrying handle which is generally much thicker and thicker, has to be folded with the head folding wall when the packaging bag is folded flat in the underfilled state.
  • an embodiment of the packaging bag is preferred, in which the carrying handle extends altogether together with its sealed end edge on one side of the center fold of the head fold wall.
  • the carrying handle can be specified not only in its film thickness regardless of the film of the rest of the packaging bag, it can also be given regardless of the production of the other bag with a handle selectable shape and with a Oberkantenkonturtechnik, the contouring example, in the region of a handle opening a can provide sufficient width or height, while this width or height of the handle can leak to the two side-Trennsch spanähten out.
  • the carrying handle can be formed from a single-layer film strip, which is then used only in one layer.
  • a single-layer film strip at least partially constant strip width but can also be folded in two layers or in total - for example in the region of the handle - double-layered and sealed together with a downwardly folded back longitudinal edge double-layered before attaching it to the top of the head with a simple sealing or adhesive seam.
  • the unfilled packaging container is on a (lower) side, the head wall opposite, open and thus provides a filling opening, which is to be closed after filling.
  • a simple closing operation by means of a separating weld, sufficient protrusions of the plastic film are provided, which are pressed from the bottom to the bottom, approximately from both sides, and welded together.
  • a bottom sheet can be designed with uneven protrusions in order to pull apart the initially flat superimposed films of a packaging bag for filling easier. Then, a wicket perforation may be provided at the edge of the most protruding film to provide the empty packaging containers in a stack on a filling machine.
  • the plastic film to be considered here is generally a mono-film, such as a polyethylene film, which is sealable on both sides.
  • a mono-film such as a polyethylene film
  • multi-layer films can be used, which are designed to be sealed together only on one, namely for the inside of the packaging bag side.
  • the handle of typically thicker (foil) material is in total or at least with a surface layer of a sealable with the film packaging bag material form.
  • the above-mentioned object is further achieved by a method for the production of plastic bag packaging bags with a carrying handle on the head folding wall and an open bottom area for filling by a film web during a pass through a machine along a given for a fold line in a central region of the film web Pass line is covered with a continuous, preferably stronger, foil strip for carrying handles or with a chain of handles made of sealable plastic film and joined by hot sailing, then to obtain in a continuous folding process within the machine longitudinal folding, which surrounds the carrying handle or handles on both sides and which is then subdivided by transversely directed to the film web separating welds in three-sided closed packaging bag for separation.
  • Fig. 1 When folded flat packaging bag 1 has a handle 2 made of a suitable for handling the packaging bag 1 stiffer and generally also thicker sheet material, while the packaging bag 1 is otherwise formed from a single, folded piece of thin sealable film.
  • This film is in the empty state according to Fig. 1 two-ply to two main walls 3, 4 on each other, wherein the underlying main wall 4 is visible only with a bottom-side strip, while the main walls 3, 4 on the opposite (upper) side in a head folding wall into each other, in the empty state between the main walls 3, 4th folded double-folded and up to a broken bottom fold line 5 is flat with two wall halves between the main walls 3,4.
  • the carrying handle 2 extends in the present example over the entire length of the fold line 5 and is firmly bound together with the halves of the folded head fold wall on both sides in separating welds 6, 7.
  • the different length of the main walls 3, 4, of which the latter protrudes with a supernatant with respect to the overhead main wall 3 and protrudes with wicket holes 8 (holes for support pins), has only meaning for a machine filling.
  • the holes 8 enable standardized provision of the packaging bag 1 in the stack, lined up on corresponding stacking pins.
  • the lower edges 9, 10 of the main walls 3, 4, which are offset from each other downwards, also facilitate the separation and gripping of the superimposed films of a packaging bag for filling.
  • the films of the packaging bag are on the bottom side, ie not connected to each other in the region of the lower edges 9, 10 and accordingly provide a filling opening.
  • a cuboid shape for which the packaging bag is already designed in the empty state and which is advantageous for a space-saving storage and handling of goods.
  • the head folding wall to an overhead flat wall 11, while lateral vertical edge strips of the main walls 3, 4 and side walls 12, 13 transverse to the main walls 3, 4, said edge strips on a vertical center line of the side walls 12, 13 collide and are firmly connected to each other by the separating welds 6, 7.
  • the carrying handle 2 is welded on a continuous sealing seam with the head folding wall 11 on one side along the fold line 5 and also incorporated into the side-separating welds 6, 7. Opposite the unfolded head folding wall 11 with a horizontal orientation, it is erected for handling upwards and can then be detected, for example in a grip hole 14.
  • the carrying handle 2 is formed in the present case of a polyethylene film, which is much thicker and stiffer than the film of the walls of the packaging bag. At its upper edge, it has a contouring, which is spread over the handle hole 14 and narrowed to the two ends.
  • the carrying handle 2 can also be at least partially executed approximately in the grip area, double-layered.
  • the film of the carrying handle 2 can be folded back at an upper edge down and sealed at the free end edge again on the carrying handle film.
  • the Fig. 2 shows so far not the final shape of the package, as over the filling projecting film areas of the main walls 3, 4 and the side walls 2, 13 only by (not shown) gripping tools tightly contracted below the filling to a closing line on which then a separation weld 15 the Main walls 3 and 4 and also recessed areas of the side walls 12 and 13 to a closed bottom 16 summarizes.
  • This is a mechanically fast and easy to perform closing process that is easy to set up in bottling plants.
  • Fig. 3 - With interruptions - a generally unwound continuously from a parent roll foil web 21 predetermined width shown, which is typically performed to save space within a machine processing space around pulleys and is subject to continuous or even clocked operations processing.
  • the film web 21 has an overall width which corresponds to the extension of the main surfaces 2, 3 and the head folding wall 11 in a vertical section parallel to the separating welds 6, 7.
  • an imaginary pass line 22 - corresponding to the fold line 5 in Fig. 1 -
  • the film web 21 consists of a thin polyethylene film with a thickness of for example 40 microns, as it is to be used for light packaging and in view of the achievable high strength of the film is also sufficient for the packaging of light goods.
  • a continuous strip 23 is placed from a suitable material for carrying handles, which may include 14 already in the intended for the production of packaging containers rapport grip holes 14 and in the same repeat on an outer edge 15 as shown in FIG Fig. 1 can be contoured. Alternatively, the grip holes 14 but also be stamped after inserting the strip 23 in the head fold 11.
  • the strip consists of a relative to the film web 21 sealable material, so at least on the film web 21 facing outer layer with the polyethylene of the film web welded, but can also be made entirely of the same material. Otherwise, however, the strip 23 may also consist of foamed, fiber-reinforced, embossed or otherwise deformed material, as long as it can be welded continuously and firmly to the film web 21 with a lower edge strip 25.
  • a heat-sealing roller 26 For sealing the lower edge strip 25 to the film web 21 here is a heat-sealing roller 26, rotatable about an axis 27, shown, with which a continuous seal is to be achieved. It is understood that other welding methods can be used, such as a melting of the surfaces to be welded by a hot air nozzle, which is directed into the gusset between the supplied handle strip and the film web 21 and thus a heat seal with the heated sealing roller 26 by the relatively strong handle material avoids, so that the strip 25 then only with a - possibly cold - roll or the like must be pressed.
  • a strip 23 is supplied for the handle in continuous form and sealed at the edge of the film web 21, although it is understood that individual prefabricated carrying handles in a shortened form, possibly with gaps can be fed and sealed in the order of a chain.
  • the film web 21 passes through the sealing of the handle material a series of folding operations and folds by means of baffles ("folding areas") and forming rollers. According to Fig. 4 the film web is double-folded along the pass line 22 folded flat, wherein the film strip 23 terminates for the carrying handles with a folding edge 28 along the pass line 22.
  • the film web 21 is inverted together with the handle strip 23 in the longitudinal direction, so that the folding edge 28 of the film web 21 is folded and that on both sides of the folding edge 28, a film strip 29 and 30 in half the width of the (everted) head folding wall 11 Carry handle strip 23 receives flat between them.
  • the thus configured film web already conforms to the vertical section configuration of the packaging bag Fig. 1 - In the unfilled state - from the packaging container according to Fig. 1 to be separated by attaching separating welds 6 and 7. These separating welds, which, unlike sealing seams, melt through and sever the superimposed film layers, produce a continuous, firm connection between the layers of the thin bag film and possibly also the thick handle film.
  • the in Fig. 1 and 2 shown wicket holes 8 introduced in the course of the separation by the attachment of the separating welds, to then stack the individual empty packaging.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP16002012.9A 2015-11-20 2016-09-15 Sachet d'emballage en film muni d'une poignee Withdrawn EP3170765A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015106355.5U DE202015106355U1 (de) 2015-11-20 2015-11-20 Verpackungsbeutel aus Kunststofffolie

Publications (1)

Publication Number Publication Date
EP3170765A2 true EP3170765A2 (fr) 2017-05-24

Family

ID=56958711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16002012.9A Withdrawn EP3170765A2 (fr) 2015-11-20 2016-09-15 Sachet d'emballage en film muni d'une poignee

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EP (1) EP3170765A2 (fr)
DE (1) DE202015106355U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3901054T3 (pl) * 2020-04-20 2022-11-21 M. Neemann Ohg Worek na wiele artykułów higienicznych i sposób jego wytwarzania

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224639A1 (de) 1992-07-25 1994-01-27 Kobusch Folien Gmbh & Co Kg Verpackungsbeutel mit Tragegriff aus Kunststoffolie für Hygieneartikel, insbesondere Windeln

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252269A (en) * 1979-04-02 1981-02-24 Paramount Packaging Plastic bag with carrying handle
DE202008003397U1 (de) * 2008-03-10 2009-07-16 Bischof + Klein Gmbh & Co. Kg Verpackung aus flexiblem Wandmaterial
DE202013003039U1 (de) * 2013-03-28 2014-07-01 Bischof + Klein Gmbh & Co. Kg Beutel aus Kunststofffolie

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224639A1 (de) 1992-07-25 1994-01-27 Kobusch Folien Gmbh & Co Kg Verpackungsbeutel mit Tragegriff aus Kunststoffolie für Hygieneartikel, insbesondere Windeln

Also Published As

Publication number Publication date
DE202015106355U1 (de) 2017-03-03

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