EP2998236B1 - Side gusseted bag and method for producing a side gusseted bag - Google Patents
Side gusseted bag and method for producing a side gusseted bag Download PDFInfo
- Publication number
- EP2998236B1 EP2998236B1 EP14184973.7A EP14184973A EP2998236B1 EP 2998236 B1 EP2998236 B1 EP 2998236B1 EP 14184973 A EP14184973 A EP 14184973A EP 2998236 B1 EP2998236 B1 EP 2998236B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- carrying handle
- gusset
- bag
- sections
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 238000000034 method Methods 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 239000011888 foil Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
-
- 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
- B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
-
- 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
- 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
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
- B31B2150/002—Flexible containers made from sheets or blanks, e.g. from flattened tubes by joining superimposed sheets, e.g. with separate bottom sheets
-
- 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
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
- B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
-
- 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
Definitions
- Side gusset bags are used in various sizes for packaging purposes and are useful, for example, in the packaging of bulk materials such as animal dry foods, detergents, cat litter, road salt, and powdery or grainy construction materials.
- Such reclosure is usually located on a bag head or at least an upper portion of the gusseted bag and may extend only over a portion, such as a gusset, or the entire width.
- the reclosure may, for example, as So-called zipper or slider closure are executed, the strip-shaped tongue and groove elements, which can be closed manually by pressure or a slider closure by a tab in the manner of a zipper in a zipper closure and opened by an opposite application of force.
- Other re-closures such. As Velcro or self-adhesive strips come into consideration.
- the entire gusseted bag can be formed by folding from a single sheet of film.
- both individual prefabricated and not closed at least one side gusseted bag can be formed, which are initially stored and transported and then filled and sealed subsequently.
- prefabricated bags pre-made bags
- the prefabricated gusseted bags are opened and then filled through a hopper before these gusseted bags are sealed by welding, gluing and / or turning over the open section.
- the closed gusseted bag usually ensures a tight storage of the contents.
- individual bags can also be formed directly in the filling process in a so-called FFS (form fill and seal) process.
- FFS form fill and seal
- a film tube is produced with gussets directly around a hopper, which is then immediately closed after filling, with individual filled bags are separated from the strand.
- the present invention also relates to embodiments wherein the front walls and gussets are formed from separate pieces of a bag film.
- the present invention relates to a gusseted bag having a handle assembly attached to the outside of the bag at one of the two gussets, the handle assembly having a handle film and secured to end portions in the longitudinal direction with a handle portion between the end portions. A user's hand may then be made between the handle portion and the underlying gusset.
- the entire handle assembly extends in the transverse direction, ie perpendicular to the longitudinal direction, over less than 80%, preferably less than 60% of the width of the associated gusset between the side edges, wherein the handle assembly also at the two associated side edges each at a distance of at least 5 mm , preferably at least 15 mm.
- a generic gusseted bag is made WO 2009/095806 A2 known, for easier folding of the side edge in the region of the handle assembly, a line of weakness in the handle sheet can be provided. Especially with a thick handle film but still remains a significant spreading tendency.
- the EP 2 354 026 B1 discloses a carrying handle assembly with two loop handles, each located in the region of a side edge. Even if a particularly comfortable handling is possible by the described embodiment with two loop handles, a relatively complex production must be accepted.
- the present invention seeks to provide a gusseted bag with a mounted on the outside of a gusset handle assembly, which has a lower tendency to spread on the corresponding gusset. Furthermore, a method for producing such a gusseted bag should also be specified.
- the gap also allows that in the production of the gusseted bag, the bending line by a folding knife or the like is formed only when the two handle film sections are already applied. Exactly along the crease line remains namely a free of the handle film area, which can be easily manipulated and folded.
- the gap extends straight over its entire length and also has a same width.
- the gap is chosen so that the Aufsp Son effect on the associated side edge is minimized, on the other hand, the two handle film sections can easily be penetrated by a user as a common carrying handle.
- the gap has a width of at least 2 mm, preferably at least 5 mm.
- the gap is expediently less than 20 mm, preferably less than 15 mm.
- a suitable gap is, for example, 10 mm.
- the gusseted bag is preferably formed as a prefabricated, flattened package which is closed at one longitudinal end and unclosed at the opposite longitudinal end for subsequent filling. Especially with such a prefabricated gusseted bag (pre-made bag) is a good shelf life and ease of use in still unfilled state of importance.
- the first carrier film section and the second carrier film section are arranged mirror-symmetrically with respect to the crease line.
- the handle assembly has a widening in the transverse direction at the end portions relative to the handle portion, wherein the two handle film segments then starting from the gap in the direction of each adjacent side edge have a C-shape. Apart from the central gap between the two handle film sections thus results in a shape that is pronounced of the stylistic representation of a dog bone.
- the two carrying handle film sections are connected by an applicator film, the applicator film however being thin in comparison to the carrying handle film.
- the ratio of the thickness of the handle film to the thickness of the application film is correspondingly at least 3: 1.
- the handle film usually has a thickness between 150 microns and 400 .mu.m, in particular between 200 .mu.m and 300 .mu.m
- the Applizierfolie can easily be performed with a thickness of less than 100 .mu.m, in particular less than 50 microns.
- the Applizierfolie essentially serves a good handling of the handle film sections in the production and does not absorb large weight or tensile forces.
- the carrying handle assembly a for the user known and apparently one-piece shape, so that a user will always engage behind both carrying handle film sections as a handle loop.
- the gusseted bag can be formed from a material web or a film blank by folding.
- pieces of a bag film for forming the two front walls and the two side folds are fed separately, in particular with the cross-method described above, and then connected to form a bag body.
- film laminates are often used with an internal imprint, such a laminated composite often having an outer film of polyethylene terephthalate (PET) or biaxially oriented polypropylene (BO-PP), while the inner surface formed by an inner film of the bag film made of polyethylene (PE) ,
- PET polyethylene terephthalate
- BO-PP biaxially oriented polypropylene
- the carrying handle assembly is preferably adhered to the end portions.
- Particularly suitable are handle assemblies that are self-adhesive and consequently only need to be placed on the respective gussets and optionally still be pressed. If the gusseted bag is also heat-sealable on the outside of the corresponding gusset, a fastening by heat-sealing may also be carried out in principle.
- the front walls and / or the side folds of the gusseted bag may comprise a layer of a plastic ribbon fabric.
- the bag body is relatively strong and difficult to handle, so that then spreading in the handle assembly can have a very adverse effect.
- the gussets may extend in the longitudinal direction over the same height as the two front walls or offset from the front walls. Side gussets offset from a bag head result in particular in a transverse process. In contrast, when the gussets are formed solely by folding from a bag string, gussets can be shortened by punching. Corresponding measures are for example EP 1 754 596 B1 known.
- the side edges are also provided with a longitudinal sealing seam. While side gusseted bags made in a transverse process require such longitudinal sealing seams to close the formed bag body in the circumferential direction, corresponding longitudinal sealing seams for stiffening are also useful in a gusseted bag formed by folding a material web or a film blank.
- the entire handle assembly extends over less than 60% of the width of the associated gusset, with respect to the respective adjacent side edges also remains a distance of at least 15 mm. Accordingly, in the manufacturing process, the side edges and possibly also longitudinal sealing seams can easily be formed without the carrying handle arrangement being an impairment, even if this is already applied during the folding of the film and / or during the production of longitudinal sealing seams.
- the invention also provides a method for producing the above-described, two front walls and two side folds of a bag foil having side gusset bag.
- a bag handle portion forming a first gusset portion has a carrying handle assembly having a handle film placed such that a gap having a width of at least 2 mm extends between a pair of handle film portions of the handle film along a center line of the corresponding first gusset.
- a crease line is formed along the centerline of the first gusset and a centerline of the second gusset, and further, by folding the bag film and / or joining a plurality of pieces of the bag film, a bag body is formed such that the two gussets are self-adhering to each other folded and inserted between the front walls.
- said steps are carried out in the described series film.
- the handle assembly is preferably applied to the still flat, unfolded bag film section before it is folded to the shape of the gusset. Just here it is of particular advantage that the relatively thick and stiff handle bar film can not be transferred.
- the two Carrier film sections can be supplied separately from each other and attached to the associated bag film section.
- the two carrying handle film sections are supplied together with an application film wherein, after the attachment of the handle film sections to the associated bag film section, the applier film is withdrawn from the handle film sections.
- the tote film sections may then be fed onto the applicator film as a type of carrier and, like labels, separated from this carrier.
- the Fig. 1 shows a filled and sealed side gusseted bag, which is preferably first prepared as a prefabricated unfilled gusseted bag and then subsequently filled and sealed.
- the gusseted bag comprises two opposite front walls 1 and two gussets 2a, 2b, which respectively connect to the front walls 1 via side edges 3 and connect the front walls 1 to each other.
- the side folds 2a, 2b have centrally between the respective associated side edges 3 each extending in a bag longitudinal direction I crease line 4, wherein at one of the side folds 2a on a bag outside a carrying handle assembly 5 is fixed, which has a carrying handle film.
- the carrying handle film at the bend line 4 by a gap S extending in the longitudinal direction I with a width b Sp of at least 2 mm, which separates the handle film into a first handle film portion 6a and a separate second handle film portion 6b.
- the Fig. 2 shows a detailed view of the handle assembly 5 at the associated gusset 2a. It can be seen that the carrying handle assembly in a transverse direction q has a width b T , which is less than 60% of the width b Sf of the side fold 2a, wherein additionally the distance a of the handle assembly 5 to the two adjacent side edges 3 each at least 15 mm is.
- the width b Sp of the gap S is usually between 2 mm and 20 mm, preferably between 5 mm and 15 mm, for example about 10 mm.
- Fig. 2 is also indicated by a hatching that the carrying handle assembly 5 as seen in the longitudinal direction I is attached to end portions 7 and between the end portions 7 has a handle portion 8.
- the carrying handle assembly 5 is preferably at the end portions 7 with adhesive 9 (see Fig. 3 ) is externally mounted on the associated gusset 2a, while the handle portion 8 is exposed, so that a user can engage behind the grip portion 8 when the user's hand is inserted between the associated gusset 2a and the handle film portions 6a, 6b.
- the two handle film sections 6a, 6b then form a uniform handle for a user, wherein the gap S is expediently dimensioned so that a user when handling the two handle film sections 6a, 6b can easily engage behind the handle portion 8, but in addition also the buckling
- the gusset 2a can easily be done on the bending line 4, without causing the handle assembly 5 is disturbing in any way in the way.
- the handle assembly 5 is typically placed on the bag sheet portion forming the gusset 2a before the gusset 2a is formed by either folding the bag film or by joining a plurality of pieces of the bag film to a bag body. Regardless of whether the gussets 2a, 2b fed as a separate film strips or formed from a material web, each required manufacturing process is not significantly affected by the handle assembly 5 according to the invention, because both the crease line 4 and the side edges 3 remain free. Since the handle film itself does not have to be kinked, there is also no significant spreading effect on the associated first gusset 2a.
- the two carrying handle film sections 6a, 6b are usually arranged mirror-symmetrically to the bending line 4, wherein the gap S runs straight over its entire length and has a same width b Sp .
- the handle assembly 5 at the end portions 7 opposite the handle portion 8 have a broadening in the transverse direction q, so that then the two handle film segments 6a, 6b starting from the gap S. in the direction of each adjacent side edge 3 have a C-shape.
- the Fig. 3 shows the provided with the handle assembly 5 side gusset 2a in a sectional view in a largely flattened state, the section is guided by the end portions 7, so that there is also the adhesive 9 is visible.
- the two front walls 1 are connected to the illustrated gusset 2 only via the longitudinal sealing seams 10.
- Such a type of connection results when the front walls 1 and the side folds 2a, 2b are fed as separate pieces of a bag film or if in the production of gusseting by folding and heat sealing the side edges 3 are trimmed subsequently, that is, if for improvement of the visual appearance outer edges are cut away at the side edges 3.
- the two carrying handle film sections 6a, 6b are connected to one another exclusively via the underlying side fold 2a.
- the Fig. 4 shows an alternative embodiment, in which the two Carrier handle film sections 6a, 6b are connected by a thin Applizierfolie 11.
- the Applizierfolie allows easier handling of the part handle assembly 5 during manufacture, in which case the handle assembly 5 can be handled like a conventional, integral one-piece carrying handle.
- the Applizierfolie 11 is designed so thin that it does not cause any significant spreading effect.
- the thickness ratio of the carrier film to the application film 11 is usually at least 3: 1. While the handle film usually has a thickness between 150 microns and 400 microns, preferably between 200 microns and 300 microns, the Applizierfolie can be comparatively thin, for example be made with a thickness of less than 100 microns, in particular less than 50 microns.
- the main carrying forces are absorbed by the two carrying-handle film sections 6a, 6b, wherein the gap S between the two carrying-handle film sections 6a, 6b is still present but hidden from the applicator film 11 towards the outside.
- the application film 11 can also be arranged between the carrying-handle film sections 6a, 6b and the corresponding side fold 2a, in which case the carrying handle arrangement 5 is fastened over the application film 7. If an additional Applizierfolie 11 is provided, although this bridges the gap S, but moreover preferably has the same shape as the two handle film sections 6a, 6b, so that can give the appearance of a single handle for a viewer.
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Description
Die Erfindung betrifft einen Seitenfaltenbeutel, insbesondere einen vorgefertigten, unbefüllten Seitenfaltenbeutel, mit zwei Frontwänden und zwei Seitenfalten, welche jeweils über Seitenkanten an die Frontwände anschließen und mittig zwischen den jeweils zugeordneten Seitenkanten eine in einer Beutellängsrichtung verlaufende Knicklinie aufweisen, wobei an einer der Seitenfalten an einer Beutelaußenseite eine Tragegriffanordnung, welche eine Tragegrifffolie aufweist, befestigt ist und wobei die Tragegriffanordnung in Längsrichtung gesehen an Endabschnitten befestigt ist und zwischen den Endabschnitten einen Griffabschnitt aufweist, der sich in Querrichtung, also senkrecht zu der Längsrichtung, über weniger als 80 % der Breite der zugeordneten Seitenfalte erstreckt und zu den beiden zugeordneten Seitenkanten jeweils einen Abstand von zumindest 5 mm aufweist. Gegenstand der Erfindung ist auch ein Verfahren zur Herstellung eines solchen Seitenfaltenbeutels.The invention relates to a gusseted bag, in particular a prefabricated, unfilled gusseted bag, with two front walls and two gussets, which connect in each case via side edges to the front walls and centrally between the respective side edges have a running in a bag longitudinal direction of bending line, wherein at one of the gussets on a Bag side outside a carrying handle assembly, which has a handle film attached, and wherein the handle assembly as seen in the longitudinal direction is fixed to end portions and between the end portions has a handle portion extending in the transverse direction, ie perpendicular to the longitudinal direction over less than 80% of the width of the associated Gusset extends and each has a distance of at least 5 mm to the two associated side edges. The invention also provides a method for producing such a gusseted bag.
Seitenfaltenbeutel werden in verschiedenen Größen für Verpackungszwecke eingesetzt und eignen sich beispielsweise zum Verpacken von Schüttgütern wie Trockenfutter für Tiere, Waschmittel, Katzenstreu, Streusalz und pulvrige oder körnige Baumaterialien.Side gusset bags are used in various sizes for packaging purposes and are useful, for example, in the packaging of bulk materials such as animal dry foods, detergents, cat litter, road salt, and powdery or grainy construction materials.
Häufig sind solche Seitenfaltenbeutel auch mit einer Wiederverschlusseinrichtung versehen, um nach einem erstmaligen Öffnen und der Entnahme einer Teilmenge einen gewissen Schutz zu ermöglichen.Often, such gusseted bags are also provided with a reclosing device to allow for a first-time opening and the removal of a subset of some protection.
Ein solcher Wiederverschluss ist üblicherweise an einem Beutelkopf oder zumindest einem oberen Bereich des Seitenfaltenbeutels angeordnet und kann sich lediglich über einen Teilbereich, beispielsweise eine Seitenfalte, oder die gesamte Breite erstrecken. Der Wiederverschluss kann beispielsweise als sogenannter Zipper- oder Slider-Verschluss ausgeführt werden, der leistenförmige Nut- und Federelemente aufweist, die bei einem Zipper-Verschluss manuell durch Druck oder bei einem Slider-Verschluss durch einen Reiter nach Art eines Reißverschlusses geschlossen und durch eine entgegengesetzte Kraftbeaufschlagung geöffnet werden können. Auch andere Wiederverschlüsse wie z. B. Klettverschlüsse oder selbstklebende Streifen kommen in Betracht.Such reclosure is usually located on a bag head or at least an upper portion of the gusseted bag and may extend only over a portion, such as a gusset, or the entire width. The reclosure may, for example, as So-called zipper or slider closure are executed, the strip-shaped tongue and groove elements, which can be closed manually by pressure or a slider closure by a tab in the manner of a zipper in a zipper closure and opened by an opposite application of force. Other re-closures such. As Velcro or self-adhesive strips come into consideration.
Für die Herstellung von Seitenfaltenbeuteln sind verschiedene Herstellungsverfahren bekannt. So kann der gesamte Seitenfaltenbeutel durch Falten aus einer einzigen Folienbahn geformt werden. Dabei können sowohl einzelne vorgefertigte und an zumindest einer Seite noch nicht verschlossene Seitenfaltenbeutel gebildet werden, die zunächst gelagert und transportiert und dann erst nachfolgend befüllt und verschlossen werden. Bei solchen vorgefertigten Beuteln (pre-made bags) ergibt sich der Vorteil, dass beim Befüllen nur ein relativ geringer apparativer Aufwand notwendig ist. Die vorgefertigten Seitenfaltenbeutel werden dabei geöffnet und dann über einen Fülltrichter gefüllt, bevor diese Seitenfaltenbeutel durch ein Verschweißen, Verkleben und/oder Umschlagen des offenen Abschnittes verschlossen werden. Der verschlossene Seitenfaltenbeutel gewährleistet in der Regel eine dichte Lagerung des Füllgutes.For the production of gusseted bags, various manufacturing methods are known. Thus, the entire gusseted bag can be formed by folding from a single sheet of film. In this case, both individual prefabricated and not closed at least one side gusseted bag can be formed, which are initially stored and transported and then filled and sealed subsequently. In such prefabricated bags (pre-made bags), there is the advantage that only a relatively small amount of equipment is required when filling. The prefabricated gusseted bags are opened and then filled through a hopper before these gusseted bags are sealed by welding, gluing and / or turning over the open section. The closed gusseted bag usually ensures a tight storage of the contents.
Aus einer kontinuierlichen Folie können auch direkt bei dem Abfüllen einzelne Beutel in einem sogenannten FFS-Verfahren (form fill and seal) gebildet werden. Dabei wird ein Folienschlauch mit Seitenfalten direkt um einen Einfülltrichter erzeugt, der dann nach dem Befüllen unmittelbar verschlossen wird, wobei auch einzelne befüllte Beutel aus dem Strang abgetrennt werden.From a continuous film, individual bags can also be formed directly in the filling process in a so-called FFS (form fill and seal) process. In this case, a film tube is produced with gussets directly around a hopper, which is then immediately closed after filling, with individual filled bags are separated from the strand.
Die vorliegende Erfindung bezieht sich jedoch auch auf Ausgestaltungen, bei denen die Frontwände und die Seitenfalten aus separaten Stücken einer Beutelfolie gebildet werden.However, the present invention also relates to embodiments wherein the front walls and gussets are formed from separate pieces of a bag film.
Die
Nachfolgend werden Stücke des Folienstreifens in einem gleichmäßigen Abstand quer zur Produktionsrichtung (also entlang der Beutellängsrichtung) auf die erste Folienbahn aufgelegt, bevor eine zweite Folienbahn in Produktionsrichtung zugeführt wird, mit der die erste Folienbahn und die Stücke der Folienstreifen abgedeckt werden. Sodann werden quer zur Produktionsrichtung Längssiegelnähte erzeugt, mit denen die Folienstreifen einerseits an den umgeschlagenen Rändern mit der zweiten Folienbahn und andererseits an ihrer gegenüberliegenden Seite mit der ersten Folienbahn verschweißt werden. Aus dem so gebildeten Beutelstrang werden abschließend einzelne Seitenfaltenbeutel durch einen Schnitt im Bereich der Folienstreifen derart abgetrennt, dass aus einem gefalteten Folienstreifen zwei Seitenfalten von aufeinander folgenden Seitenfaltenbeuteln gebildet werden. Das beschriebene Verfahren wird in der Praxis auch als Quer-Verfahren oder Totani-Verfahren bezeichnet.Subsequently, pieces of the film strip are placed on the first film web at a uniform distance transversely to the production direction (ie along the bag longitudinal direction) before a second film web is fed in the production direction, with which the first film web and the pieces of film strips are covered. Then longitudinal sealing seams are produced transversely to the direction of production, with which the film strips are welded on the one hand to the folded edges with the second film web and on the other hand on its opposite side with the first film web. Finally, individual side gusset bags are separated from the thus formed bag strand by a cut in the region of the film strips in such a way that two gussets of successive gusseted bags are formed from a folded film strip. The method described is also referred to in practice as a transverse method or Totani method.
Unabhängig von dem Verfahren zur Herstellung des Seitenfaltenbeutels besteht häufig das Bedürfnis, den Seitenfaltenbeutel mit einer Tragegriffanordnung zu versehen, wobei eine solche Tragegriffanordnung entweder an einem Beutelkopf oder an einer der beiden Seitenfalten angeordnet wird.Regardless of the method of manufacturing the gusseted bag, there is often a need to provide the gusset bag with a handle assembly, such a handle assembly being disposed either on a bag head or on one of the two gussets.
Die vorliegende Erfindung betrifft konkret einen Seitenfaltenbeutel mit einer Tragegriffanordnung, welche an der Beutelaußenseite an einer der beiden Seitenfalte befestigt ist, wobei die Tragegriffanordnung eine Tragegrifffolie aufweist und in Längsrichtung gesehen an Endabschnitten befestigt ist, wobei sich zwischen den Endabschnitten ein Griffabschnitt befindet. Die Hand eines Benutzers kann dann zwischen dem Griffabschnitt und der darunter liegenden Seitenfalte durchgeführt werden.Specifically, the present invention relates to a gusseted bag having a handle assembly attached to the outside of the bag at one of the two gussets, the handle assembly having a handle film and secured to end portions in the longitudinal direction with a handle portion between the end portions. A user's hand may then be made between the handle portion and the underlying gusset.
Die gesamte Tragegriffanordnung erstreckt sich in Querrichtung, also senkrecht zu der Längsrichtung, über weniger als 80 %, vorzugsweise weniger als 60 % der Breite der zugeordneten Seitenfalte zwischen den Seitenkanten, wobei die Tragegriffanordnung auch zu den beiden zugeordneten Seitenkanten jeweils einen Abstand von zumindest 5 mm, vorzugsweise zumindest 15 mm aufweist.The entire handle assembly extends in the transverse direction, ie perpendicular to the longitudinal direction, over less than 80%, preferably less than 60% of the width of the associated gusset between the side edges, wherein the handle assembly also at the two associated side edges each at a distance of at least 5 mm , preferably at least 15 mm.
Aus der Praxis sind gattungsgemäße Seitenfaltenbeutel bekannt, bei denen ein einfacher, gerader Folienstreifen mit selbstklebenden Endabschnitten auf eine der Seitenfalten aufgebracht wird. Um eine gleichmäßige Gewichtsverteilung zu ermöglichen, wird ein solcher Folienstreifen als Tragegriffanordnung in Querrichtung mittig, also entlang der Knicklinie der Seitenkante angeordnet. Eine solche Ausgestaltung wird beispielsweise in der
Vor diesem Hintergrund ergeben sich auch bei FFS-Seitenfaltenbeuteln mit einem aufgeklebten Folienstreifen als Tragegriff Schwierigkeiten bei der Handhabung.Against this background, even with FFS side-folding bags with a glued-on foil strip as a carrying handle, handling difficulties arise.
Ein gattungsgemäßer Seitenfaltenbeutel ist aus
Des Weiteren sind aus dem Stand der Technik auch gattungsfremde Tragegriffanordnungen bekannt. So beschreibt die
Die
Aus der
Vor diesem Hintergrund liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Seitenfaltenbeutel mit einer von außen auf eine Seitenfalte aufgesetzten Tragegriffanordnung anzugeben, der an der entsprechenden Seitenfalte eine geringere Neigung zum Aufspreizen aufweist. Des Weiteren soll auch ein Verfahren zur Herstellung eines solchen Seitenfaltenbeutels angegeben werden.Against this background, the present invention seeks to provide a gusseted bag with a mounted on the outside of a gusset handle assembly, which has a lower tendency to spread on the corresponding gusset. Furthermore, a method for producing such a gusseted bag should also be specified.
Gegenstand der Erfindung und Lösung der Aufgabe sind ein Seitenfaltenbeutel gemäß Patentanspruch 1 sowie ein Verfahren zur Herstellung eines zwei Frontwände und zwei Seitenfalten aus einer Beutelfolie aufweisenden Seitenfaltenbeutels gemäß Patentanspruch 15. Ausgehend von einem Seitenfaltenbeutel mit den eingangs beschriebenen Merkmalen ist vorgesehen, dass die Tragegrifffolie an der Knicklinie durch einen in Längsrichtung verlaufenden Spalt mit einer Breite von zumindest 2 mm unterbrochen ist, der die Tragegrifffolie in einen ersten Tragegrifffolienabschnitt und einen separaten zweiten Tragegrifffolienabschnitt trennt. Erfindungsgemäß wird damit genau der Bereich der Knicklinie ausgespart, so dass die Tragegrifffolie selbst überhaupt nicht umgeknickt werden muss. Alleine dadurch ist die Aufspreiz-Wirkung erheblich reduziert. Des Weiteren beträgt die Breite des Spaltes zumindest 2 mm, so dass auch unmittelbar an der Knicklinie Luft verbleibt, um dort die entsprechende Seitenfalte leicht auf sich selbst umzulegen.The invention and the solution of the problem are a gusseted bag according to
Wie nachfolgend noch beschrieben, erlaubt der Spalt auch, dass bei der Herstellung des Seitenfaltenbeutels die Knicklinie durch ein Faltmesser oder dergleichen erst dann gebildet wird, wenn die beiden Tragegrifffolienabschnitte bereits appliziert sind. Genau entlang der Knicklinie verbleibt nämlich ein von der Tragegrifffolie freier Bereich, der leicht manipuliert und umgefaltet werden kann.As will be described below, the gap also allows that in the production of the gusseted bag, the bending line by a folding knife or the like is formed only when the two handle film sections are already applied. Exactly along the crease line remains namely a free of the handle film area, which can be easily manipulated and folded.
Zweckmäßigerweise verläuft der Spalt über seine gesamte Länge gerade und weist auch eine gleiche Breite auf.Conveniently, the gap extends straight over its entire length and also has a same width.
Der Spalt ist so gewählt, dass der Aufspreiz-Effekt an der zugeordneten Seitenkante minimiert ist, wobei andererseits die beiden Tragegrifffolienabschnitte von einem Benutzer leicht als ein gemeinsamer Tragegriff durchgriffen werden können. Erfindungsgemäß weist der Spalt eine Breite von zumindest 2 mm, vorzugsweise zumindest 5 mm auf. Andererseits ist der Spalt zweckmäßigerweise kleiner als 20 mm, bevorzugt kleiner als 15 mm. Ein geeignetes Spaltmaß ist beispielsweise 10 mm.The gap is chosen so that the Aufspreiz effect on the associated side edge is minimized, on the other hand, the two handle film sections can easily be penetrated by a user as a common carrying handle. According to the invention, the gap has a width of at least 2 mm, preferably at least 5 mm. On the other hand, the gap is expediently less than 20 mm, preferably less than 15 mm. A suitable gap is, for example, 10 mm.
Der Seitenfaltenbeutel ist vorzugsweise als vorgefertigte, flachgelegte Verpackung gebildet, die an einem Längsende verschlossen und an dem gegenüberliegenden Längsende für eine nachfolgende Befüllung unverschlossen ist. Gerade bei einem solchen vorgefertigten Seitenfaltenbeutel (pre-made bag) ist eine gute Lagerfähigkeit sowie eine einfache Handhabung in noch unbefülltem Zustand von Bedeutung.The gusseted bag is preferably formed as a prefabricated, flattened package which is closed at one longitudinal end and unclosed at the opposite longitudinal end for subsequent filling. Especially with such a prefabricated gusseted bag (pre-made bag) is a good shelf life and ease of use in still unfilled state of importance.
Üblicherweise sind der erste Tragegrifffolienabschnitt und der zweite Tragegrifffolienabschnitt bezüglich der Knicklinie spiegelsymmetrisch zueinander angeordnet.Usually, the first carrier film section and the second carrier film section are arranged mirror-symmetrically with respect to the crease line.
Um einerseits eine besonders gute Befestigung der Tragegriffanordnung an der zugeordneten Seitenfalte und andererseits eine leichte Handhabung zu ermöglichen, ist gemäß einer bevorzugten Ausgestaltung der Erfindung vorgesehen, dass die Tragegriffanordnung an den Endabschnitten gegenüber dem Griffabschnitt eine Verbreiterung in Querrichtung aufweist, wobei die beiden Tragegrifffolienabschnitte dann ausgehend von dem Spalt in Richtung der jeweils benachbarten Seitenkante eine C-Form aufweisen. Abgesehen von dem mittigen Spalt zwischen den beiden Tragegrifffolienabschnitten ergibt sich damit eine Form, welche an die stilistische Darstellung eines Hundeknochens erinnert.On the one hand to allow a particularly good attachment of the handle assembly to the associated gusset and on the other hand, an easy handling, is provided according to a preferred embodiment of the invention that the handle assembly has a widening in the transverse direction at the end portions relative to the handle portion, wherein the two handle film segments then starting from the gap in the direction of each adjacent side edge have a C-shape. Apart from the central gap between the two handle film sections thus results in a shape that is reminiscent of the stylistic representation of a dog bone.
Gemäß einer alternativen Ausgestaltung der Erfindung ist vorgesehen, dass die beiden Tragegrifffolienabschnitte durch eine Applizierfolie verbunden sind, wobei die Applizierfolie jedoch dünn im Vergleich zu der Tragegrifffolie ist. Das Verhältnis der Dicke der Tragegrifffolie zu der Dicke der Applizierfolie beträgt entsprechend zumindest 3:1. Wenn die beiden Tragegrifffolienabschnitte durch eine dünne Applizierfolie verbunden sind, ergibt sich der Vorteil, dass die beiden Tragegrifffolienabschnitte bei der Herstellung leichter zugeführt und befestigt werden können.According to an alternative embodiment of the invention, it is provided that the two carrying handle film sections are connected by an applicator film, the applicator film however being thin in comparison to the carrying handle film. The ratio of the thickness of the handle film to the thickness of the application film is correspondingly at least 3: 1. When the two carrying film sections are connected by a thin application film, there is the advantage that the two carrying film sections can be more easily fed and fixed during manufacture.
Während die Tragegrifffolie üblicherweise eine Dicke zwischen 150 µm und 400 µm, insbesondere zwischen 200 µm und 300 µm aufweist, kann die Applizierfolie ohne weiteres mit einer Dicke von weniger als 100 µm, insbesondere weniger als 50 µm ausgeführt werden. Die Applizierfolie dient im Wesentlichen einer guten Handhabung der Tragegrifffolienabschnitte bei der Herstellung und muss keine großen Gewichts- oder Zugkräfte aufnehmen. Des Weiteren ergibt sich jedoch auch der Vorteil, dass die Tragegriffanordnung eine für den Benutzer bekannte und scheinbar einteilige Form aufweist, so dass ein Benutzer stets beide Tragegrifffolienabschnitte als eine Griffschlaufe hintergreifen wird.While the handle film usually has a thickness between 150 microns and 400 .mu.m, in particular between 200 .mu.m and 300 .mu.m, the Applizierfolie can easily be performed with a thickness of less than 100 .mu.m, in particular less than 50 microns. The Applizierfolie essentially serves a good handling of the handle film sections in the production and does not absorb large weight or tensile forces. Furthermore, however, there is also the advantage that the carrying handle assembly a for the user known and apparently one-piece shape, so that a user will always engage behind both carrying handle film sections as a handle loop.
Wie bereits eingangs erläutert, kann der Seitenfaltenbeutel aus einer Materialbahn oder einem Folienzuschnitt durch Falten gebildet sein. Alternativ werden insbesondere mit dem eingangs beschriebenen Quer-Verfahren Stücke einer Beutelfolie zur Bildung der beiden Frontwände sowie der beiden Seitenfalten separat zugeführt und dann zu einem Beutelkörper verbunden.As already explained at the beginning, the gusseted bag can be formed from a material web or a film blank by folding. Alternatively, pieces of a bag film for forming the two front walls and the two side folds are fed separately, in particular with the cross-method described above, and then connected to form a bag body.
Unabhängig von den beiden alternativen Ausführungsformen ist in der Regel eine mehrschichtige Beutelfolie vorgesehen, welche an der Innenseite heißsiegelbar ist und welche eine hochwertige Außenschicht aufweist.Regardless of the two alternative embodiments, a multilayer bag film is generally provided, which is heat-sealable on the inside and which has a high-quality outer layer.
In der Praxis werden häufig Folienlaminate mit einem innenliegenden Aufdruck eingesetzt, wobei ein solcher Kaschierverbund häufig eine Außenfolie aus Polyethylenterephthalat (PET) oder biaxial orientiertem Polypropylen (BO-PP) aufweist, während die von einer Innenfolie gebildete Innenfläche der Beutelfolie aus Polyethylen (PE) besteht.In practice, film laminates are often used with an internal imprint, such a laminated composite often having an outer film of polyethylene terephthalate (PET) or biaxially oriented polypropylene (BO-PP), while the inner surface formed by an inner film of the bag film made of polyethylene (PE) ,
Da die Kunststofffolie an der Beutelaußenseite häufig nicht oder nur schwer heißsiegelbar ist, wird die Tragegriffanordnung vorzugsweise an den Endabschnitten aufgeklebt. Geeignet sind insbesondere Tragegriffanordnungen, die selbstklebend ausgeführt sind und folglich lediglich auf die entsprechenden Seitenfalten aufgelegt und gegebenenfalls noch angedrückt werden müssen. Sofern der Seitenfaltenbeutel auch an der Außenseite der entsprechenden Seitenfalte heißsiegelbar ist, kann grundsätzlich aber auch eine Befestigung durch Heißsiegeln erfolgen.Since the plastic film on the outside of the bag is often difficult or not heat-sealable, the carrying handle assembly is preferably adhered to the end portions. Particularly suitable are handle assemblies that are self-adhesive and consequently only need to be placed on the respective gussets and optionally still be pressed. If the gusseted bag is also heat-sealable on the outside of the corresponding gusset, a fastening by heat-sealing may also be carried out in principle.
Im Rahmen der Erfindung können die Frontwände und/oder die Seitenfalten des Seitenfaltenbeutels eine Schicht aus einem Kunststoff-Bändchengewebe aufweisen. Gerade bei einem solchen Beuteltyp ist der Beutelkörper relativ stark und schwer zu verarbeiten, so dass sich dann ein Aufspreizen im Bereich der Griffanordnung sehr nachteilig auswirken kann.In the context of the invention, the front walls and / or the side folds of the gusseted bag may comprise a layer of a plastic ribbon fabric. Especially in such a bag type, the bag body is relatively strong and difficult to handle, so that then spreading in the handle assembly can have a very adverse effect.
Im Rahmen der Erfindung können sich die Seitenfalten in Längsrichtung über die gleiche Höhe wie die beiden Frontwände erstrecken oder gegenüber den Frontwänden abgesetzt sein. Von einem Beutelkopf abgesetzte Seitenfalten resultieren insbesondere bei einem Quer-Verfahren. Wenn die Seitenfalten dagegen allein durch Falten aus einem Beutelstrang gebildet werden, können Seitenfalten durch Ausstanzungen gekürzt werden. Entsprechende Maßnahmen sind beispielsweise aus
Vorzugsweise sind die Seitenkanten auch mit einer Längssiegelnaht versehen. Während bei in einem Quer-Verfahren gefertigte Seitenfaltenbeutel solche Längssiegelnähte notwendig sind, um den gebildeten Beutelkörper in Umfangsrichtung zu verschließen, sind auch bei einem durch Falten einer Materialbahn oder eines Folienzuschnittes gebildeten Seitenfaltenbeutel entsprechende Längssiegelnähte zur Versteifung zweckmäßig.Preferably, the side edges are also provided with a longitudinal sealing seam. While side gusseted bags made in a transverse process require such longitudinal sealing seams to close the formed bag body in the circumferential direction, corresponding longitudinal sealing seams for stiffening are also useful in a gusseted bag formed by folding a material web or a film blank.
Erfindungsgemäß erstreckt sich die gesamte Tragegriffanordnung über weniger als 60 % der Breite der zugeordneten Seitenfalte, wobei gegenüber den jeweils benachbarten Seitenkanten auch ein Abstand von zumindest 15 mm verbleibt. Entsprechend können bei dem Herstellungsprozess die Seitenkanten und gegebenenfalls auch Längssiegelnähte leicht gebildet werden, ohne dass die Tragegriffanordnung eine Beeinträchtigung darstellt, selbst wenn diese bei dem Falten der Folie und/oder bei dem Erzeugen von Längssiegelnähten bereits appliziert ist.According to the invention, the entire handle assembly extends over less than 60% of the width of the associated gusset, with respect to the respective adjacent side edges also remains a distance of at least 15 mm. Accordingly, in the manufacturing process, the side edges and possibly also longitudinal sealing seams can easily be formed without the carrying handle arrangement being an impairment, even if this is already applied during the folding of the film and / or during the production of longitudinal sealing seams.
Gegenstand der Erfindung ist auch ein Verfahren zur Herstellung des zuvor beschriebenen, zwei Frontwände und zwei Seitenfalten aus einer Beutelfolie aufweisenden Seitenfaltenbeutels. Bei dem Herstellungsverfahren wird auf einem eine erste Seitenfalte bildenden Beutelfolienabschnitt eine Tragegriffanordnung, welche eine Tragegrifffolie aufweist, derart aufgelegt, dass ein zwischen zwei Tragegrifffolienabschnitten der Tragegrifffolie verlaufender Spalt mit einer Breite von zumindest 2 mm entlang einer Mittellinie der entsprechenden ersten Seitenfalte verläuft. Entlang der Mittellinie der ersten Seitenfalte und einer Mittellinie der zweiten Seitenfalte wird eine Knicklinie gebildet und des Weiteren wird durch Falten der Beutelfolie und/oder durch das Verbinden mehrerer Stücke der Beutelfolie ein Beutelkörper derart geformt, dass die beiden Seitenfalten an der jeweiligen Knicklinie auf sich selbst gefaltet und zwischen den Frontwänden eingelegt sind. Vorzugsweise erfolgen die genannten Schritte in der beschriebenen Reihenfolie. Auch wenn eine andere Verfahrensführung grundsätzlich möglich ist und die erste Seitenfalte für das Aufbringen der Tragegriffanordnung auch noch nachträglich aufgeklappt werden kann, wird die Tragegriffanordnung vorzugsweise auf den noch flachen, ungefalteten Beutelfolienabschnitt appliziert, bevor dieser zu der Form der Seitenfalte geknickt wird. Gerade dabei ist es dann von besonderem Vorteil, dass die relativ dicke und steife Tragegrifffolie nicht mit umgelegt werden kann.The invention also provides a method for producing the above-described, two front walls and two side folds of a bag foil having side gusset bag. In the manufacturing method, a bag handle portion forming a first gusset portion has a carrying handle assembly having a handle film placed such that a gap having a width of at least 2 mm extends between a pair of handle film portions of the handle film along a center line of the corresponding first gusset. A crease line is formed along the centerline of the first gusset and a centerline of the second gusset, and further, by folding the bag film and / or joining a plurality of pieces of the bag film, a bag body is formed such that the two gussets are self-adhering to each other folded and inserted between the front walls. Preferably, said steps are carried out in the described series film. Even if a different process control is basically possible and the first gusset for the application of the handle assembly can also be opened later, the handle assembly is preferably applied to the still flat, unfolded bag film section before it is folded to the shape of the gusset. Just here it is of particular advantage that the relatively thick and stiff handle bar film can not be transferred.
Im Rahmen der Erfindung ergeben sich verschiedene Möglichkeiten, um die Tragegrifffolienabschnitte aufzubringen. So können die beiden Tragegrifffolienabschnitte getrennt voneinander zugeführt und an dem zugeordneten Beutelfolienabschnitt befestigt werden.In the context of the invention, there are various ways to apply the handle film sections. Thus, the two Carrier film sections can be supplied separately from each other and attached to the associated bag film section.
Gemäß einer alternativen Ausgestaltung der Erfindung ist vorgesehen, dass die beiden Tragegrifffolienabschnitte gemeinsam mit einer Applizierfolie zugeführt werden, wobei nach der Befestigung der Tragegrifffolienabschnitte an dem zugeordneten Beutelfolienabschnitt die Applizierfolie von den Tragegrifffolienabschnitten abgezogen wird. Die Tragegrifffolienabschnitte können dann auf der Applizierfolie als eine Art Träger zugeführt und ähnlich wie Etiketten von diesem Träger getrennt werden.According to an alternative embodiment of the invention, it is provided that the two carrying handle film sections are supplied together with an application film wherein, after the attachment of the handle film sections to the associated bag film section, the applier film is withdrawn from the handle film sections. The tote film sections may then be fed onto the applicator film as a type of carrier and, like labels, separated from this carrier.
Die Applizierfolie ist im Rahmen einer solchen Ausgestaltung üblicherweise ein durchgehender Strang.The Applizierfolie is usually a continuous strand in the context of such an embodiment.
Gemäß einer weiteren Variante ist vorgesehen, dass die beiden Tragegrifffolienabschnitte gemeinsam mit einer Applizierfolie zugeführt werden, wobei die Applizierfolie an den Tragegrifffolienabschnitten verbleibt. Wenn die Applizierfolie im Rahmen einer solchen Ausgestaltung als durchgehender Strang bereitgestellt wird, ist zweckmäßigerweise in der Form der Tragegriffanordnung eine Perforation oder Schwächungslinie vorzusehen, damit dann die einzelnen Tragegriffanordnungen mit den beiden Tragegrifffolienabschnitten und der entsprechend geformten Applizierfolie herausgetrennt werden können. Alternativ können die beiden Tragegrifffolienabschnitte auch durch eine Applizierfolie verbunden sein, welche die Form eines üblichen Tragegriffes aufweist. Die Handhabung ist dann ähnlich wie bei einer herkömmlichen Tragegriffanordnung mit einer durchgehenden Tragegrifffolie, wobei jedoch erfindungsgemäß an dem Spalt der Tragegrifffolie ein leichtes Knicken möglich ist. Die Applizierfolie ist dann so dünn zu wählen, dass diese das Knicken nicht beeinträchtigt und auch keinen wesentlichen Aufspreizeffekt erzeugt.According to a further variant, it is provided that the two carrying handle film sections are supplied together with an application film, the application film remaining on the carrying handle film sections. If the Applizierfolie is provided in the context of such a configuration as a continuous strand, it is expedient to provide a perforation or weakening line in the form of the handle assembly so that then the individual handle assemblies can be separated with the two handle film sections and the correspondingly shaped Applizierfolie. Alternatively, the two carrying handle film sections can also be connected by an applicator film, which has the shape of a conventional carrying handle. The handling is then similar to a conventional handle assembly with a continuous handle film, but according to the invention at the gap of the handle sheet a slight buckling is possible. The Applizierfolie is then so thin to choose that it does not affect the buckling and also produces no significant Aufspreizeffekt.
Die Erfindung wird im Folgenden anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen:
- Fig. 1
- einen Seitenfaltenbeutel mit einer Tragegriffanordnung an einer der Seitenfalten,
- Fig. 2
- eine Detailansicht der Tragegriffanordnung an der Seitenfalte,
- Fig. 3
- einen Schnitt durch den flachgelegten Seitenfaltenbeutel im Bereich der in
Fig. 2 dargestellten Seitenfalte entlang der Linie A-A, - Fig. 4
- eine alternative Ausgestaltung des Seitenfaltenbeutels in einer Ansicht gemäß der
Fig. 3 , - Fig. 5
- ein möglicher Verfahrensschritt zur Aufbringung einer Tragegriffanordnung auf einer Folienbahn.
- Fig. 1
- a gusseted bag with a handle assembly on one of the gussets,
- Fig. 2
- a detailed view of the handle assembly on the gusset,
- Fig. 3
- a section through the flattened gusseted bag in the area of
Fig. 2 illustrated gusset along the line AA, - Fig. 4
- an alternative embodiment of the gusseted bag in a view according to the
Fig. 3 . - Fig. 5
- a possible method step for applying a handle assembly on a film web.
Die
Die Seitenfalten 2a, 2b weisen mittig zwischen den jeweils zugeordneten Seitenkanten 3 jeweils eine in einer Beutellängsrichtung I verlaufende Knicklinie 4 auf, wobei an einer der Seitenfalten 2a an einer Beutelaußenseite eine Tragegriffanordnung 5 befestigt ist, welche eine Tragegrifffolie aufweist. Erfindungsgemäß ist vorgesehen, dass die Tragegrifffolie an der Knicklinie 4 durch einen in Längsrichtung I verlaufenden Spalt S mit einer Breite bSp von zumindest 2 mm unterbrochen ist, der die Tragegrifffolie in einen ersten Tragegrifffolienabschnitt 6a und einen separaten zweiten Tragegrifffolienabschnitt 6b trennt.The side folds 2a, 2b have centrally between the respective associated side edges 3 each extending in a bag longitudinal direction I
Die
In der
Die Tragegriffanordnung 5 ist vorzugsweise an den Endabschnitten 7 mit Klebstoff 9 (siehe
Die beiden Tragegrifffolienabschnitte 6a, 6b bilden dann für einen Benutzer einen einheitlichen Griff, wobei der Spalt S zweckmäßigerweise so bemessen ist, dass ein Benutzer bei der Handhabung die beiden Tragegrifffolienabschnitte 6a, 6b an dem Griffabschnitt 8 leicht hintergreifen kann, wobei jedoch zusätzlich auch das Knicken der Seitenfalte 2a an der Knicklinie 4 leicht erfolgen kann, ohne dass dabei die Tragegriffanordnung 5 in irgendeiner Weise störend im Wege ist. Zusätzlich verbleibt auch zu den Seitenkanten 3 ein erheblicher Abstand a von zumindest 15 mm, so dass auch bei der Herstellung des Seitenfaltenbeutels dort ohne Probleme Knicke und/oder Längssiegelnähte 10 gebildet werden können.The two
Die Tragegriffanordnung 5 wird üblicherweise auf den die Seitenfalte 2a bildenden Beutelfolienabschnitt aufgelegt, bevor die Seitenfalte 2a entweder durch das Falten der Beutelfolie oder durch das Verbinden mehrerer Stücke der Beutelfolie zu einem Beutelkörper geformt wird. Unabhängig davon, ob die Seitenfalten 2a, 2b als separate Folienstreifen zugeführt oder aus einer Materialbahn gebildet werden, wird der jeweils erforderliche Herstellungsprozess durch die erfindungsgemäße Tragegriffanordnung 5 nicht wesentlich beeinträchtigt, weil sowohl die Knicklinie 4 als auch die Seitenkanten 3 frei bleiben. Da die Tragegrifffolie selbst nicht geknickt werden muss, ergibt sich auch kein wesentlicher Aufspreizeffekt an der zugeordneten ersten Seitenfalte 2a.The
Wie in der
Um eine sichere Befestigung der Tragegrifffolienabschnitte 6a, 6b an der zugeordneten Seitenfalte 2a zu ermöglichen, kann die Tragegriffanordnung 5 an den Endabschnitten 7 gegenüber dem Griffabschnitt 8 eine Verbreiterung in Querrichtung q aufweisen, so dass dann die beiden Tragegrifffolienabschnitte 6a, 6b ausgehend von dem Spalt S in Richtung der jeweils benachbarten Seitenkante 3 eine C-Form aufweisen.In order to enable a secure attachment of the
Die
Gemäß der Ausführungsform der
Die
Das Dickenverhältnis der Tragegrifffolie zu der Applizierfolie 11 beträgt üblicherweise zumindest 3:1. Während die Tragegrifffolie üblicherweise eine Dicke zwischen 150 µm und 400 µm, vorzugsweise zwischen 200 µm und 300 µm aufweist, kann die Applizierfolie vergleichsweise dünn, beispielsweise mit einer Dicke von weniger als 100 µm, insbesondere weniger als 50 µm, ausgeführt sein.The thickness ratio of the carrier film to the
Bei der Handhabung werden die wesentlichen Tragekräfte durch die beiden Tragegrifffolienabschnitte 6a, 6b aufgenommen, wobei der Spalt S zwischen den beiden Tragegrifffolienabschnitten 6a, 6b weiterhin vorhanden aber nach außen von der Applizierfolie 11 verdeckt ist.During handling, the main carrying forces are absorbed by the two carrying-
Grundsätzlich kann die Applizierfolie 11 auch zwischen den Tragegrifffolienabschnitten 6a, 6b und der entsprechenden Seitenfalte 2a angeordnet sein, wobei dann die Tragegriffanordnung 5 über die Applizierfolie 7 befestigt ist. Sofern eine zusätzliche Applizierfolie 11 vorgesehen ist, überbrückt diese zwar den Spalt S, weist aber darüber hinaus vorzugsweise die gleiche Form wie die beiden Tragegrifffolienabschnitte 6a, 6b auf, so dass sich für einen Betrachter der Anschein eines einheitlichen Tragegriffes ergeben kann.In principle, the
Wie bereits zuvor erläutert, wird die Tragegriffanordnung üblicherweise aufgebracht, bevor der Seitenfaltenbeutel aus verschiedenen Stücken zusammengesetzt bzw. durch Falten gebildet wird. Die beiden Tragegrifffolienabschnitte 6a, 6b einer Tragegriffanordnung 5 können dabei entweder komplett unabhängig voneinander oder mit einer Applizierfolie verbunden zugeführt werden. Die
Claims (18)
- A side-gusset bag with two front walls (1) and two side gussets (2a, 2b), which are respectively connected to the front walls (1) by means of lateral edges (3) and feature a bending line (4) that extends in a longitudinal direction (I) of the bag centrally between the respectively assigned lateral edges (3), wherein a carrying handle arrangement (5) featuring a carrying handle film is fastened on one of the side gussets (2a) on an outer side of the bag, wherein the carrying handle arrangement (5) is fastened on end sections (7) referred to the longitudinal direction (I) and features a handle section (8) between the end sections, and wherein the carrying handle arrangement extends over less than 80% of the width (bSf) of the assigned side gusset (2a) in a transverse direction (q) and is respectively spaced apart from the two assigned lateral edges (3) by a distance (a) of at least 5 mm, characterized in that the carrying handle film is at the folding line (4) interrupted by a gap (S) with a width (bSp) of at least 2 mm, wherein said gap extends in the longitudinal direction (I) and separates the carrying handle film into a first carrying handle film section (6a) and a separate second carrying handle film section (6b).
- The side-gusset bag according to claim 1, characterized in that the carrying handle arrangement (5) extends over less than 60 % of the width (bSf) of the assigned side gusset (2a) in the transverse direction (9).
- The side-gusset bag according to claim 1, characterized in that the carrying handle arrangement (5) is respectively spaced apart from the two assigned lateral edges (3) by a distance (a) of at least 15 mm.
- The side-gusset bag according to one of claims 1 to 3, characterized in that it is realized in the form of a prefabricated flattened packaging, which is closed on one longitudinal end and open on the opposite longitudinal end in order to be subsequently filled.
- The side-gusset bag according to one of claims 1 to 4, characterized in that the first carrying handle film section (6a) and the second carrying handle film section (6b) are arranged mirror-symmetrical to one another referred to the folding line (4).
- The side-gusset bag according to one of claims 1 to 5, characterized in that the gap (S) extends straight and has the same width (bSp), which preferably amounts to at least 5 mm, over its entire length.
- The side-gusset bag according to one of claims 1 to 6, characterized in that the end sections (7) of the carrying handle arrangement (5) are widened relative to the handle section (8), wherein the two carrying handle film sections (6a, 6b) are starting from the gap (S) shaped in the form of a C in the direction of the respectively adjacent lateral edge.
- The side-gusset bag according to one of claims 1 to 7, characterized in that the two carrying handle film sections (6a, 6b) are connected by an application film (11), wherein the ratio between the thickness of the carrying handle film and the thickness of the application film (11) amounts to at least 3:1.
- The side-gusset bag according to one of claims 1 to 8, characterized in that the end sections (7) of the carrying handle arrangement (5) are bonded to the assigned side gusset (2a).
- The side-gusset bag according to one of claims 1 to 9, characterized in that the carrying handle film has a thickness between 150 µm and 400 µm.
- The side-gusset bag according to one of claims 1 to 10, characterized in that the front walls (1) and the side gussets (2a, 2b) respectively consists of a multilayer plastic film that can be heat-sealed on an inner side of the bag.
- The side-gusset bag according to one of claims 1 to 11, characterized in that the front walls (1) and/or the side gussets (2a, 2b) feature a layer of a woven plastic strip fabric.
- The side-gusset bag according to one of claims 1 to 12, characterized in that the side gussets (2a, 2b) are shorter than the two front walls (1) along the longitudinal direction (I).
- The side-gusset bag according to one of claims 1 to 13, characterized in that longitudinal heat-sealed seams (10) are formed on the lateral edges (3).
- A method for manufacturing a side-gusset bag with two front walls (1) and two side gussets (2a, 2b) of a bag film according to one of claims 1 to 14,
wherein a carrying handle arrangement (S) featuring a carrying handle film is placed on a bag film section forming a first side gusset (2a) in such a way that a gap (S), which extends between two carrying handle film sections (6a, 6b) of the carrying handle film and has a width (bSp) of at least 2 mm, extends along a center line of the corresponding side gusset (2a),
wherein a folding line (4) is respectively formed along the center line of the first side gusset (2a) and a center line of the second side gusset, and
wherein a bag body is formed by folding the bag film and/or by connecting several sections of the bag film in such a way that the two side gussets are respectively folded on top of themselves along the respective folding line (4) and inserted between the front walls (1). - The method according to claim 15, characterized in that the two carrying handle film sections (6a, 6b) are supplied and fastened on the assigned bag film section separately from one another.
- The method according to claim 15, characterized in that the two carrying handle film sections (6a, 6b) are supplied together with an application film (11'), wherein the application film (11') is removed from the carrying handle film sections (6a, 6b) after the carrying handle film sections (6a, 6b) have been fastened on the assigned bag film section.
- The method according to claim 15, characterized in that the two carrying handle film sections (6a, 6b) are supplied together with an application film (11), wherein the application film (11) remains on the carrying handle film sections (6a, 6b).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES14184973.7T ES2635254T3 (en) | 2014-09-16 | 2014-09-16 | Bag of lateral folds as well as procedure for the manufacture of a bag of lateral folds |
HUE14184973A HUE034309T2 (en) | 2014-09-16 | 2014-09-16 | Side gusseted bag and method for producing a side gusseted bag |
EP14184973.7A EP2998236B1 (en) | 2014-09-16 | 2014-09-16 | Side gusseted bag and method for producing a side gusseted bag |
US14/847,386 US9688441B2 (en) | 2014-09-16 | 2015-09-08 | Side-gusset bag and method of making same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14184973.7A EP2998236B1 (en) | 2014-09-16 | 2014-09-16 | Side gusseted bag and method for producing a side gusseted bag |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2998236A1 EP2998236A1 (en) | 2016-03-23 |
EP2998236B1 true EP2998236B1 (en) | 2017-06-07 |
Family
ID=51570290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14184973.7A Active EP2998236B1 (en) | 2014-09-16 | 2014-09-16 | Side gusseted bag and method for producing a side gusseted bag |
Country Status (4)
Country | Link |
---|---|
US (1) | US9688441B2 (en) |
EP (1) | EP2998236B1 (en) |
ES (1) | ES2635254T3 (en) |
HU (1) | HUE034309T2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3257776B1 (en) * | 2016-06-16 | 2021-09-01 | Windmöller & Hölscher KG | Bag and method for manufacturing the same |
DE102016119113A1 (en) | 2016-06-16 | 2017-12-21 | Windmöller & Hölscher Kg | Sack, and method of making a bag |
FR3053586A1 (en) * | 2016-07-08 | 2018-01-12 | Sartorius Stedim Fmt Sas | 3D POCKET FOR EMPLOYING BIOPHARMACEUTICAL FLUIDS, AND METHOD FOR MAKING SUCH A POCKET |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3208492A (en) * | 1962-02-21 | 1965-09-28 | Hudson Pulp & Paper Corp | Bag handle and bag |
US7331917B2 (en) | 2002-07-24 | 2008-02-19 | Totani Corporation | Bag making machine |
US8142340B2 (en) * | 2002-10-24 | 2012-03-27 | Lionel Nicholas Mantzivis | Bag and a method of forming a bag |
US8368686B2 (en) | 2004-05-26 | 2013-02-05 | Sony Online Entertainment Llc | Resource management for rule-based procedural terrain generation |
DE102004034755B4 (en) * | 2004-07-17 | 2007-07-12 | Lemo Maschinenbau Gmbh | Carrying bag made of thermoplastic material and method of manufacture |
PL1754596T3 (en) | 2005-08-19 | 2008-03-31 | Nordenia Deutschland Halle Gmbh | Method for manufacturing bags with gussets |
FR2903083B1 (en) * | 2006-07-03 | 2011-01-21 | Autobar Flexible Packasing | PLASTIC BELLOW BAG FOR FOODSTUFFS AND METHOD FOR MANUFACTURING THE SAME |
PL1792722T3 (en) * | 2006-10-02 | 2009-04-30 | Nordenia Deutschland Halle Gmbh | Packaging pouch |
PL2148820T3 (en) | 2007-05-31 | 2012-07-31 | Nordenia Deutschland Halle Gmbh | Sheet-material packaging bag |
EP2039620B1 (en) | 2007-09-19 | 2010-09-08 | Nordenia Deutschland Halle GmbH | Bag with side gusset |
ITBO20080054A1 (en) | 2008-01-28 | 2009-07-29 | Bordi Carlo S R L | BAG WITH HANDLE FOR THE CONTAINMENT OF A PRODUCT. |
EP2354026B1 (en) | 2010-02-10 | 2012-08-22 | Nordenia Deutschland Halle GmbH | Bag with gusseted sides and method for producing same |
US8322923B2 (en) * | 2010-06-15 | 2012-12-04 | Mondi Jackson, Inc | Film bag with handle |
DE202010017735U1 (en) * | 2010-08-06 | 2012-06-15 | Mondi Ag | Foil bag with a foot-side end portion |
-
2014
- 2014-09-16 HU HUE14184973A patent/HUE034309T2/en unknown
- 2014-09-16 ES ES14184973.7T patent/ES2635254T3/en active Active
- 2014-09-16 EP EP14184973.7A patent/EP2998236B1/en active Active
-
2015
- 2015-09-08 US US14/847,386 patent/US9688441B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US9688441B2 (en) | 2017-06-27 |
EP2998236A1 (en) | 2016-03-23 |
US20160075481A1 (en) | 2016-03-17 |
ES2635254T3 (en) | 2017-10-03 |
HUE034309T2 (en) | 2018-02-28 |
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