EP3023356A1 - Sachet a soufflets lateraux et procede de fabrication d'un sachet a soufflets lateraux - Google Patents

Sachet a soufflets lateraux et procede de fabrication d'un sachet a soufflets lateraux Download PDF

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Publication number
EP3023356A1
EP3023356A1 EP15191286.2A EP15191286A EP3023356A1 EP 3023356 A1 EP3023356 A1 EP 3023356A1 EP 15191286 A EP15191286 A EP 15191286A EP 3023356 A1 EP3023356 A1 EP 3023356A1
Authority
EP
European Patent Office
Prior art keywords
bag
gusseted
gusset
front walls
gussets
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.)
Granted
Application number
EP15191286.2A
Other languages
German (de)
English (en)
Other versions
EP3023356B1 (fr
Inventor
Alfons Kruse
Detlef Stöppelmann
Jens Kösters
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.)
Mondi AG
Original Assignee
Mondi Consumer Packaging Technologies GmbH
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
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Application filed by Mondi Consumer Packaging Technologies GmbH filed Critical Mondi Consumer Packaging Technologies GmbH
Publication of EP3023356A1 publication Critical patent/EP3023356A1/fr
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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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5866—Integral spouts
    • 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
    • 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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • 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
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • 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
    • B31B2155/00—Flexible containers made from 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • 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
    • B65D2575/00—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
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/586—Opening or contents-removing devices added or incorporated during package manufacture with means for reclosing

Definitions

  • the invention relates to a gusseted bag having two opposite front walls, a first and a second gusset, which extend opposite each other along a bag longitudinal direction and each connect the two front walls, a reclosing device having at least one reclosure strip, which is arranged in the region of the first gusset, extends along a bag transverse direction over a portion of the width of the front walls and allows the folding out of the first gusset to form a resealable chute.
  • the invention further relates to a method for producing a gusseted bag according to the preamble of claim 10.
  • the gusseted bag is usually formed from plastic film, wherein in particular multilayer laminated films for the production come into consideration, in which case the films on an inside of the gusseted bag have a heat-sealable inner layer and an outer surface of the side gusseted bag forming outer layer, wherein in a laminated film and an internal Overprint may be provided, which is produced before laminating.
  • one of the two lateral folds is provided with the reclosing device with which the gusset can be fixed and closed in a folded state between the front walls, wherein the gusset can be folded outwardly by opening the reclosing device to form a chute.
  • the reclosing device in a filled gusseted bag is an in Provided transversely extending head seal seam, which must first be partially demolished, cut or peeled for a first opening with a corresponding head section.
  • EP 1 620 321 B1 Generic gusseted bags are made EP 1 620 321 B1 . EP 1 948 527 B1 . EP 2 032 454 B1 and EP 2 148 820 B1 known.
  • gusseted bags have a reclosure with a single self-locking reclosure strip on the inside of the bag at a gusset and adjacent the gusset also extends to the two front walls and which connects the gusset with the two front walls. Starting from a center line of the gusset one wing, so one half of the corresponding gusset with the first front wall and the other half of the gusset is connected to the second front wall.
  • the length of the reclosure strip on the two front walls can be different according to the prior art as well as in the context of the invention.
  • the reclosing strip on the front walls can also extend beyond the corresponding gusset, so that then adjacent to the gusset, the two front walls are directly connected to each other, whereby a larger discharge opening is provided.
  • the reclosure extends only over part of the entire width of the front walls.
  • a connection line extending in the longitudinal direction of the bag or in the transverse direction of the bag, in particular a heat-sealing seam, can be provided laterally to the reclosing strip in order to delimit the opening.
  • gusseted bags For the production of gusseted bags, various methods are known in practice.
  • the generic gusseted bag with a reclosing device on only one gusset and the associated portions of the front walls is formed by folding from a single sheet of film.
  • the self-locking reclosable strip is placed on the flat material web, in which case one of the gussets is formed in the region of the reclosure strip. From a gusseted tube with the front walls and the side gusses individual gusseted bags or corresponding blanks are then separated, each having a reclosing device.
  • gusseted pouches are then separated from the gusseted tubing, wherein a filling can take place directly in this case, which is then a so-called FFS process (Form Fill and Seal).
  • FFS process Form Fill and Seal
  • prefabricated gusseted bags can first be formed which are not yet closed on at least one side and can then initially be stored and transported to a packaging location. Such gusseted bags are then filled separately and sealed.
  • a bag string of successive, connected bag blanks is formed.
  • a first film web is guided in the production direction.
  • a film strip is fed, wherein the edges of the film strip are folded over on a central portion.
  • the edges are usually the same width, with a gap remaining between the edges after folding.
  • pieces of film strips are applied at a uniform distance transversely to the production direction (ie along the bag longitudinal direction) on the first film web 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.
  • a lower edge of the gusseted bag can be closed with a transverse seal, but then a uniform placement of the gusseted bag is not possible. Rather, such a gusseted bag tends during filling, its transport and its storage to a tilt when it is to be placed on its lower portion as a floor.
  • the invention has for its object to provide a gusseted bag with a reclosure on a fold-out side gusset, which has an improved stability.
  • a method for producing such a gusseted bag should also be specified.
  • the object of the invention and solution of the problem are a gusseted bag according to claim 1 and a method for producing a gusseted bag according to claim 10.
  • the invention provides that a separate film section is provided for forming a flat bottom, which is connected via connecting seams with lower ends of the front walls and the side gussets ,
  • the invention also relates to a method for producing a gusseted bag according to claim 10, wherein a web of material is supplied to a bag film in a production direction, wherein folded gusset tube with a first front wall, a second front wall and arranged therebetween, forming the front walls gussets formed by folding the bag film is, and being separated from the gusseted tube, preferably unfilled gusseted bag.
  • a transversely extending incision is made such that extends the incision in the gusseted tube over both gussets and the first front wall, which is arranged between the gussets, wherein in the gusseted tube separated by the incision first front wall on one side of the incision, ie seen in the production direction before or after the incision, raised and at least partially folded, whereby the underlying second front wall and the side fold exposed in sections and wherein, to form a flat bottom, a separate film section is connected via connecting seams, in particular heat-sealing seams, to the folded-over section of the first front wall and the uncovered side folds and the second front wall.
  • the gusseted bag according to the invention is characterized by a particularly advantageous handling.
  • the reclosing device on the first gusset With the aid of the reclosing device on the first gusset, it can be fixed in a folded state after a first opening, in which case the two wings of the first lateral gusset are respectively fastened to one of the two front walls.
  • the gusset By loosening the reclosure then the gusset can be folded outwards to form a chute, so that then a particularly easy and accurate dosage is possible.
  • the gusseted bag can be emptied controlled by an inclination by a user, wherein just a precise removal of subsets is possible, in which case the remaining contents is protected by the reclosing device.
  • the gusseted bag may for example have a filling volume between 1 l and 50 l, in particular between 2 l and 30 l.
  • the gusseted bag is particularly suitable for receiving bulk materials such as pelleted pet food, detergent, cat litter, road salt and powdery or granular construction materials.
  • a top seal seam is usually provided above the reclosing device prior to initial opening, which seals the side gusset bag tightly.
  • a top seal is then torn off to expose the underlying recloser and allow the chute to fold out and reclosure.
  • the reclosing device comprises at least one reclosing strip, which preferably runs exactly in the transverse direction of the bag.
  • the reclosing device it is possible for the reclosing device to have a plurality of separate reclosing strips which can be locked together.
  • the reclosing device has a single, continuous and self-locking reclosable strip.
  • Such a reclosure strip can be particularly easily placed on a flat web of material during manufacture, which is then arranged only by folding this Wiederver gleichst Shape in the desired position on the gusset.
  • the reclosing strip may have either continuous closure formations or a plurality of individual interlockable closure elements.
  • the reclosing strip may have either continuous closure formations or a plurality of individual interlockable closure elements.
  • the reclosing strip may have either continuous closure formations or a plurality of individual interlockable closure elements.
  • grooves, protrusions and hook-shaped curved strips which can be locked together or with themselves can be considered as continuous closure molding.
  • Corresponding structures can be extruded, for example, as a strand, wherein the closure formations are usually arranged on a heat-sealable support section or extruded in one piece with the heat-sealable support section.
  • Individual, lockable closure elements can be provided for example in the form of Velcro hooks, mushroom heads or the like.
  • the individual mushroom heads or Velcro hooks are usually so mobile that they can penetrate at a pressure from the outside in an associated space and then lock there with similar closure elements.
  • the individual locking elements which can be locked together there is also the advantage that, although contaminants locally connect avoid the entire reclosure strip but can not be easily raised from the pollution.
  • the front walls and the side folds are formed from a bag film, in particular a uniform bag film, wherein the front walls and the side folds can be folded from a uniform material web as described above.
  • the bag film usually has at least one heat-sealable inner layer and one outer layer, wherein the assignment of the inner layer and the outer layer relates to the arrangement of the bag film on the side-folding bag.
  • the inner layer thus forms the inner surface of the gusseted bag, while the outer layer forms the outer surface.
  • the inner layer is expediently well heat-sealable in order to close the pouch on the circumference, to be able to form longitudinal and transverse sealing seams and also to be able to fasten further devices such as the reclosing device by heat sealing.
  • polyolefins such as polyethylene (PE) and polypropylene (PP) and polyolefin copolymers
  • biodegradable plastics such as polylactic acid (PLA), polybutylene adipate terephthalate (PBAT) and polybutylene succinate (PBS) are also suitable as the heat-sealable material for the inner layer.
  • the outer layer is less heat sealable compared to the inner layer, for which the outer layer may have a higher melting or softening temperature.
  • the outer layer may in particular be formed from polyester.
  • heat-sealing can also be achieved by orientation of the outer layer.
  • the outer layer therefore also oriented polyethylene terephthalate (OPET), oriented polyamide (OPA), oriented polypropylene (OPP) and oriented polylactic acid (OPLA) come into consideration.
  • the outer layer may also be formed by a cellulose film.
  • a laminating film is used as the bag film, wherein a first film with the inner layer and at least one second film with the outer layer are bonded together by adhesive.
  • a first film with the inner layer and at least one second film with the outer layer are bonded together by adhesive.
  • Suitable for example, is a two-component adhesive based on polyurethane (2K-PUR).
  • 2K-PUR polyurethane
  • other intermediate layers may be provided, for example to increase the barrier effect.
  • a film layer of ethylene-vinyl alcohol copolymer (EVOH) may be provided a thin metal foil or a metallized film layer.
  • an internal printing is preferably also provided, which is applied to one of the joining surfaces of the films to be joined together before laminating.
  • the gusseted bag is expediently produced in a longitudinal method, wherein a material web of the bag film is first converted into a gusseted tube, from which individual side gusset bags are then separated.
  • the side edges formed between the side folds and front walls are formed as folded edges.
  • a longitudinal seal This can coincide with one of the side edges, so that then this side edge is not formed as a folding edge.
  • the edges of the material web can also be connected to one of the front surfaces by a longitudinal seam.
  • the production of longitudinal sealing seams at the side edges may be expedient in order to increase the dimensional stability and dimensional stability of the gusseted bag.
  • an outer edge may also be cut to improve the appearance.
  • An upper edge of the bag above the reclosing device is usually closed by a transverse sealing seam.
  • the side folds extend over the entire side gusseted bag from the flat bottom to the transverse seam at the upper edge of the bag, that is to say in the longitudinal direction of the bag. Further measures to shorten the gusset are then not necessary.
  • the gusseted bag can be provided with a carrying handle.
  • the carrying handle can be like from the EP 2 032 454 B1 be stamped on the bag head in a sealed area.
  • the second gusset on a carrying handle which then faces the reclosing device.
  • Suitable embodiments of carrying handles are made EP 2 148 820 B1 known.
  • the carrying handle may be approximately centered or slightly offset with respect to the bag longitudinal direction in the direction of the flat bottom the gusseted bag may be staggered, whereby then the weight of the gusseted bag can be easily controlled even when dumping.
  • the flat bottom provided according to the invention by a separate film section usually has a heat-sealable inner layer and an outer layer, as described above, wherein the flat bottom can also be formed from the previously described bag film.
  • the flat bottom usually has a rectangular shape, wherein the length and width of the film section corresponds to the width of the front walls and the width of the side folds.
  • a modification is provided in which incisions are produced which cut through a first front wall formed from the material web and the side folds adjoining it in the transverse direction for each film bag.
  • the incisions may conveniently be formed in the still flat web of material, but then in the folding then tearing must be prevented and the web is to be guided with appropriate care.
  • the gusseted bag described above with a reclosure at the first gusset.
  • the reclosure strip expediently extends at the front walls at least over a width which corresponds to half the width of the associated gusset. In such an embodiment, only a connection of the two wings of the gusset with one of the front walls takes place. If the reclosure is carried out beyond the gusset area, the two front walls can also be connected directly to each other in certain areas.
  • the reclosure strip extends in all cases only over part of the front walls.
  • the method can also be used to attach carrying handles which are expediently arranged on the side fold which lies opposite the reclosable strip.
  • a heat-sealing seam may be provided, wherein such a heat-sealing seam is preferably formed in the region of one of the side edges.
  • all side edges can be provided with a heat-sealing seam in order to improve the stability of the side gusset bags that are formed. If the material web is welded at one side edge to a circumferentially closed tube, supernatants can also be provided there, which are trimmed, that is cut off.
  • the first front wall is preferably folded over at a fold line spaced from the incision in such a way that the distance of the fold line from the incision corresponds approximately to half the width of the side fold.
  • the front wall is then folded as far as possible, whereby the exposed gusset, starting from a central crease line at an oblique angle of 45 ° to the outside.
  • the separate sheet section for forming a flat bottom for each gusseted bag is conveniently attached to the front panels and gussets with heat seal sutures.
  • the sealing at the gussets can be done easily on the flattened gusseted tube.
  • the corresponding generation of a transverse sealing seam is preferably carried out in the raised state.
  • the Fig. 1 shows a gusseted bag according to the invention with two opposite front walls 1a, 1b, a first gusset 2a and a second gusset 2b, wherein the gussets 2a, 2b extend opposite each other along a bag longitudinal direction l and each connect the two front walls 1a, 1b together.
  • FIG. 1 shows a filled and sealed in a transverse direction of the bag q by a head seal 3
  • Fig. 2 a gusseted bag provided as a pre-made bag in a laid-flat condition for subsequent filling.
  • the prefabricated, flattened bag is filled at the top initially not yet closed edge and closed by the head seal 3.
  • the side edges between the front walls 1a, 1b and the side folds 2a, 2b are reinforced by longitudinal sealing seams 4.
  • the bag has a reclosing device with a reclosing strip 6.
  • the reclosing strip 6 is arranged in the region of the first side fold 2a and extends over the two wings of the first side fold 2a inserted between the front walls 1a, 1b and along the front walls 1a, 1b.
  • the reclosure strip 6 extends on the front walls 1a, 1b beyond the first gusset 2a, so that there in a region adjacent to the first gusset 2a region, the two front walls 1a, 1b can be directly connected to each other.
  • the two wings of the corresponding gusset 2a are connected to one of the two front walls 1a and 1b, respectively.
  • a weakening line 7 is arranged above the reclosure strip 6, with which a corner section 8 above the reclosure strip 6 can be separated.
  • the weakening line 7 can be formed for example by a punching, a perforation or a laser, wherein the various measures can also be combined.
  • a notch 9 is provided for crack initiation.
  • a transverse seam 10 is formed adjacent to the reclosure strip 6, which extends from the end of the reclosure strip 6 to the opposite edge of the bag.
  • the first gusset 2a can be opened by opening the reclosing device formed by the reclosing strip 6 with the formation of a chute folded outwards and again inserted between the two front walls 1 a, 1 b for a new closure.
  • the gusseted bag has a flat bottom which is formed by a separate film section 11.
  • the film portion 11 is connected to the lower edges of the front walls 1a, 1b and the side gussets 2a, 2b by heat sealing seams 12a, 12b. While the flat bottom during filling, transport, storage and handling is particularly advantageous and allows a safe installation of the side gusseted bag, the contents can be easily removed with the reclosing device, in particular, the removal of subsets by the formation of a chute exactly possible is.
  • a carrying handle not shown, which is suitably arranged on the second side fold 2b, which is opposite to the reclosing device.
  • the reclosing strip 6 may comprise continuous closure formations in the form of grooves or projections or also a multiplicity of individual closure elements which can be locked together, wherein such individual closure elements which can be locked together may for example have the form of mushroom heads or hooked hooks.
  • a preferred method for the preparation of in the Fig. 1 and 2 shown gusseted bag is in the Fig. 3a to 3f shown.
  • a material web of a bag film 13 is fed in a production direction p, which in its orientation of the bag longitudinal direction I. equivalent.
  • the corresponding method is therefore also referred to as a longitudinal method.
  • a gusseted tube 14 is formed, which has a first front wall 1a, a second front wall 1b and two side folds 2a, 2b connecting the front walls 1a, 1b. According to the Fig. 3a the crease lines are already indicated.
  • Outer edges 15 of the bag film 13 are provided as a projection and are separated after the formation of the gusseted tube 14.
  • a transverse incision 16 is made such that the incision 16 in the subsequently formed gusseted tube 14 extends over the two gussets 2a, 2b and the first front wall 1a which extends between the gussets 2a, 2b is arranged.
  • the individual gusset bags are separated from the gusseted tube 14 in the region of the incisions 16, wherein the incision 16 is provided for the formation of a flat bottom.
  • the bag film 13 is at least two-layered and comprises a heat-sealable inner layer of polyolefin, in particular polyethylene and an outer layer of polyester, in particular PET.
  • the film section 11 may be formed of a same or similar material with a corresponding layer structure.
  • the heat-sealable inner layer is according to Fig. 3a at the flat-fed bag film 13 initially free, so that there for each gusseted bag extending in the transverse direction reclosing strip. 6 can be sealed. Adjacent to the reclosing strip 6, the weakening line 7 is also already produced in the flat bag film 13, with which the upper corner section 8 for exposing the reclosable strip 6 during a first opening can subsequently be separated in the finished side pleated bag.
  • the first front wall 1a can be raised, for which purpose, for example, grippers or vacuum cups can be used.
  • Fig. 3a is further indicated also that in the formation of the gusseted tube 14 also longitudinal sealing seams 4 can be generated.
  • the overhead first front wall 1 a is partially folded over, the two side folds 2 a, 2 b and the second front wall 1 b are partially exposed underneath (see FIG Fig. 3b ), whereby then there the side folds 2a, 2b, starting from a bend line 17 at an angle of 45 ° to the outside.
  • a separate film section 11 is placed, which according to the Fig. 3b in particular can be supplied laterally.
  • this separate film section 11 is connected to the unfolded gussets with heat sealing seams 12b, wherein this heat sealing can be done with a flat gusseted hose 14.
  • FIG Fig. 3d In order to avoid the undesired production of a heat-sealing seam within the side gusset tube 14 when connecting the separate film section 11 to the first front wall 1a, it is possible according to FIG Fig. 3d be provided that the folded portion of the first front wall 1a is erected and then connected in the erected state along a heat-sealed seam 12a to the separate film section 11 ( Fig. 3e ).
  • connection of the separate film section 11 with the second front wall 1b can be done without problems beforehand or else subsequently.
  • Both heat-sealed seams 12a can also be formed together when the separate film section 11 is folded back in again ( Fig. 3d ), because then the connections of the separate film section 11 to the first front wall 1a and the second front wall 1b at the lower edge of the bag are superimposed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
EP15191286.2A 2014-11-18 2015-10-23 Procede de fabrication d'un sachet a soufflets Active EP3023356B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014116820.8A DE102014116820A1 (de) 2014-11-18 2014-11-18 Seitenfaltenbeutel sowie Verfahren zur Herstellung eines Seitenfaltenbeutels

Publications (2)

Publication Number Publication Date
EP3023356A1 true EP3023356A1 (fr) 2016-05-25
EP3023356B1 EP3023356B1 (fr) 2018-01-03

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EP (1) EP3023356B1 (fr)
DE (2) DE102014116820A1 (fr)
ES (1) ES2662860T3 (fr)
HU (1) HUE038518T2 (fr)

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US10661963B2 (en) 2014-04-04 2020-05-26 Polytex Fibers Corporation Peelable easy open plastic bags
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EP2948389B1 (fr) 2013-01-22 2018-07-18 Polytex Fibers Corporation Sac en plastique tissé à accès facile
US11305927B2 (en) 2014-04-04 2022-04-19 Polytex Fibers Llc Easy open plastic bags
US11472622B2 (en) 2014-04-04 2022-10-18 Polytex Fibers Llc Woven plastic bags with features that reduce leakage, breakage, and infestations
MX2016013051A (es) 2014-04-04 2017-02-15 Polytex Fibers Corp Bolsas de plastico tejidas con caracteristicas que reducen fugas, roturas e infestaciones.
ES2715683T3 (es) * 2014-07-22 2019-06-05 Nestec Sa Envase resellable con asidero, y métodos y dispositivos para confeccionarlo
FR3032185B1 (fr) * 2015-01-29 2019-05-17 Coveris Flexibles France Sac preforme en matiere plastique flexible, notamment en pet/pe, d'epaisseur inferieure a 200 mirons
EP3246266B1 (fr) * 2016-05-17 2019-02-20 Mondi AG Procede de fabrication d'un sachet a soufflets lateraux et sachet a soufflets lateraux vides poses a plat
BR112019001074B1 (pt) * 2016-07-29 2022-04-26 Bemis Company, Inc Pacotes com função de drenagem controlada
DE102017121981A1 (de) * 2017-09-22 2019-04-11 Mondi Ag Folienbeutel sowie Verfahren zur Bildung von Folienbeuteln
US20190135483A1 (en) * 2017-11-06 2019-05-09 The Norix Group Shank Proof Container
WO2020055392A1 (fr) * 2018-09-12 2020-03-19 Bemis Company, Inc. Étui de transport souple
ES2863319T3 (es) 2018-10-24 2021-10-11 Mondi Ag Bolsa de embalaje con pliegues laterales sin llenar ni cerrar
US11161680B2 (en) * 2019-01-18 2021-11-02 Simple Container Solutions, Inc. Recyclable cellulose based insulated liner
US11377284B2 (en) * 2019-11-13 2022-07-05 General Mills, Inc. Resealable bag and method of producing the resealable bag
US20230002118A1 (en) * 2021-07-02 2023-01-05 Polytex Fibers Corporation Recyclable woven plastic bags with quad-seal and/or k-seal

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EP1541332A1 (fr) 2002-07-24 2005-06-15 Totani Corporation Machine a fabriquer des sacs
EP1620321B1 (fr) 2003-04-15 2014-08-20 The Hudson-Sharp Machine Company Emballage muni d'un bec verseur reutilisable, et procede de faconnage de l'emballage
EP1948527B1 (fr) 2005-10-18 2011-04-20 Innoflex Incorporated Emballage ameliore pourvu d un bec verseur refermable
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EP2032454B1 (fr) 2006-06-22 2013-01-23 Mondi Halle GmbH Sachet composé d'un film
EP2148820B1 (fr) 2007-05-31 2012-02-29 Nordenia Deutschland Halle GmbH Sac d'emballage en film
EP2039619A1 (fr) * 2007-09-21 2009-03-25 Veriplast Flexible Procédé de fabrication d'un sac à partir d'une bobine de film en matière plastique et le sac obtenu
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Also Published As

Publication number Publication date
DE102014116820A1 (de) 2016-05-19
US20160137378A1 (en) 2016-05-19
DE202015008996U1 (de) 2016-06-09
HUE038518T2 (hu) 2018-10-29
EP3023356B1 (fr) 2018-01-03
US10183796B2 (en) 2019-01-22
ES2662860T3 (es) 2018-04-10

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