EP2535294B1 - Sachet doté d'une fermeture réutilisable comprenant une bride de fermeture scellée dans le joint de scellement longitudinal - Google Patents

Sachet doté d'une fermeture réutilisable comprenant une bride de fermeture scellée dans le joint de scellement longitudinal Download PDF

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Publication number
EP2535294B1
EP2535294B1 EP20110170394 EP11170394A EP2535294B1 EP 2535294 B1 EP2535294 B1 EP 2535294B1 EP 20110170394 EP20110170394 EP 20110170394 EP 11170394 A EP11170394 A EP 11170394A EP 2535294 B1 EP2535294 B1 EP 2535294B1
Authority
EP
European Patent Office
Prior art keywords
sealing seam
bag
width
longitudinal
longitudinal sealing
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.)
Not-in-force
Application number
EP20110170394
Other languages
German (de)
English (en)
Other versions
EP2535294A1 (fr
Inventor
Oswald Watterott
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 AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mondi AG filed Critical Mondi AG
Priority to EP20110170394 priority Critical patent/EP2535294B1/fr
Priority to DE201120105025 priority patent/DE202011105025U1/de
Publication of EP2535294A1 publication Critical patent/EP2535294A1/fr
Application granted granted Critical
Publication of EP2535294B1 publication Critical patent/EP2535294B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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
    • B65D2313/00—Connecting or fastening means
    • B65D2313/02—Connecting or fastening means of hook-and-loop type

Definitions

  • the invention relates to a bag with a gusset.
  • the invention further relates to a method for producing a bag according to the first paragraph.
  • the pouch described therein has a gusset interposed between a front wall and a rear wall and a reclosure disposed on the inside of the gusset with a first closure member and a second closure member for forming a resealable chute in an opening region in the gusset.
  • the chute is formed by moving out that portion of the gusset located from the opening area towards the foot area of the bag.
  • the re-closure has a sealing flap which covers the opening region and its edge regions which adjoin it and which is secured along its edge with the recess of a continuous region on the inside of the side fold.
  • the closing flap is at least partially made of a sealable material and is defined along its edge with the recess of the contiguous area on the inside of the gusset by a sealed seam.
  • the sealed seam has the shape of an inverted "U", wherein a U-web is located above the opening region, that is, starting from the opening region in the direction of the head region of the bag. The two adjoining the U-web U-legs extend down towards the bottom area. Between the U-legs of the opening area runs.
  • Such a bag involves the considerable risk during pouring or dumping of the packaged product that packaged goods can accumulate in the interior of the bag adjacent to the closing flap and that part of the side fold to which the closing flap is fastened, ie essentially that part of the side fold. is located above the opening area, is pressed by the weight of the above the opening portion or the opening accumulating packaged goods to the outside and, as soon as enough packaged goods accumulated, the located above the opening portion of the gusset folds outward.
  • the chute located below the opening area is largely closed and consequently prevents a swift and well-dosed pouring out of the packaged goods or completely prevented dumping, because granular packaged goods can block the now quite narrow pouring opening of the chute.
  • the DE202010014773U1 discloses a pouch having a reclosable system integrated into the gusset comprised of two opposing closure strips which are both disposed on the inner surface and mid-region of the gusset and extend to the edges of the gusset. This arrangement allows four reinforcing longitudinal sealing seams at the edges of the gussets, which are not interrupted in the region of the closure strips.
  • the subject of the invention is therefore a bag made of a film having an outer side and a sealable inner side, and having a front wall and a rear wall and a head region and a foot region and at least one gusset extending longitudinally between the head region and the foot region, the side gusset being delimited by a first longitudinal seal seam toward the front wall and bounded by a second longitudinal seal seam toward the back wall and having an opening portion and having a reclosure attached to the inside, wherein the reclosure has a closing flap which covers the opening area and adjoining edge areas, wherein the closing flap has a width adapted to the width of the side fold and along its edge, which has a first edge zone and an adjoining second edge zone and a third edge zone, with a recess contiguous area between the second and third edge zone, in which a closure part is arranged, on the inside by the in the first Sealed longitudinal seam sealed second edge zone and sealed in the second longitudinal sealing seam third edge zone.
  • the subject of the invention is a method for producing a bag from a film comprising a side intended as an outer side and a sealable inside of the bag, the bag having a front wall and a rear wall and a head portion and a foot portion and at least one longitudinally between the
  • the gusset has a gusset and footer region, the gusset being delimited with a first longitudinal seal seam toward the front wall and a second longitudinal seal seam toward the back wall
  • the process comprising the steps of: feeding the film and defining an opening region within a region the film intended to form the gusset, and positioning a closure tab so as to form a reclosure within the area of the film intended to form the gusset such that the closure tab engages the opening region and adjacent thereto Covered edge portions and along its edge with the recess of a contiguous area in which a closure member is arranged, is fixed to the inside, wherein the edge has a first edge zone and an adjoining second edge zone and third edge zone and
  • the various walls of the bag may be present as individual wall segments and joined together by gluing or sealing their edges. Also, extrusion seams are possible. Also, a film can be formed into a tube and contacting edges of the film, more specifically the inside of these edges, sealed together to make the bag. In addition, in such a tube shape by folding the tube wall, a side fold or two side folds can be produced. At such fold edges and the structure of the bag reinforcing longitudinal sealing seams may be formed.
  • the foot can be formed flat or realized in the form of a fin.
  • the opening area may be defined by an already in the film by e.g. Punching a film part prefabricated opening or be formed by a cut.
  • the opening region can also be formed by an originally closed part of the film, which is opened only when the bag is first opened or removed from the bag.
  • the opening region may have a material weakening limiting the opening, which weakening material defines a region of a flap which can be completely or partially released from the gusset, wherein a chute can be formed after opening or removal of the flap.
  • the weakening of the material can be produced by the action of a laser beam or by the production of a perforation or embossing. There may also be a combination of these measures.
  • the material weakening may be a continuous line or in the form of a broken line.
  • the opening may also already be incorporated in the film and this opening may be closed by an additional closing tab applied on the outside of the film, which has to be torn away from the opening in order to open it. In both cases, an original packed condition can be detected when the opening is completely closed, so there is no damage to the tab.
  • the opening area may be formed into a bag prior to processing the film. be defined in their manufacture. However, the opening area can also be defined or produced in the course of processing the film into a bag.
  • a chute is formed with the opening opened through a part of the side fold adjacent to the opening area (eg, facing the foot area), which is pulled away from another part of the side fold located on the opposite side of the opening area (eg, the head area) the area between the front wall and the rear wall is pulled out.
  • the bag may also include actuating means for actuating the reclosure disposed on the gusset adjacent the opening portion, the actuating means having a grip portion for engaging and a mounting portion for securing the gripping portion to the gusset.
  • the actuating means may be formed by a single or multi-layer film strip, either transversely to the longitudinal direction or parallel to the longitudinal direction, preferably at the position of a central Folding line of the gusset either on the outside or on the inside, is attached. If it is attached to the inside, it is led out of the bag through a slot along the fold line, so that the grip area can be easily gripped from the outside.
  • the slot and preferably also the fastening area attached to the inside, can be sealed off with an inside attached cover sheet.
  • the attachment area as well as the cover sheet can be arranged between the inside and an element of the reclosure.
  • the attachment area may engage immediately adjacent the opening area at the location of the gusset to which is attached one part of the reclosure which cooperates with the other part of the reseal fastener attached to the closure tab.
  • a film As a film, a single-layer film or a multi-layer film can be used.
  • a multilayer film may e.g. be made by laminating or coextrusion.
  • the advantage is obtained by this measure that for the attachment of the adjoining the first edge zone second and third edge zone of VerschWRlasche on the inside no separate sealing tool and consequently no separate step is necessary. Rather, in the production of the longitudinal sealing seams in a single step, the respective longitudinal sealing seam is produced at the same time and the closing flap is fastened or sealed in the respective longitudinal sealing seam. The manufacturing process can thus run more efficiently and cost-effectively than is the case with the known method.
  • the first and the second longitudinal sealing seam have a longitudinal sealing seam width.
  • a "width adapted to the width of the gusset" is intended to mean that the maximum width of the closing flap can be so large that the second and the third edge zone (ie the right and the left edge zone) the respective longitudinal sealing seam - possibly with the recess Buckling or folding region of the film at the outer edge of the longitudinal sealing seam - completely fills, or that the width of the closing flap may be slightly smaller than the aforementioned maximum width, so that the third and the fourth edge zone extend only into a part of the respective longitudinal sealing seam and thus only partially fill the respective longitudinal sealing seam viewed from the inside to the outside.
  • the second edge zone along the full longitudinal seal seam width or along a portion of the longitudinal seal seam width can be sealed into the first longitudinal seam and the third edge zone sealed into the second longitudinal seam along the full longitudinal seam width or along a portion of the longitudinal seal seam width. If the respective edge zone is sealed along the full longitudinal sealing seam width, a particularly good anchoring of the Obtain closure flap in the respective longitudinal sealing seam, which is favorable, for example, with a relatively small longitudinal sealing seam width.
  • the longitudinal sealing seam width is relatively large, it may be sufficient for the respective edge zone to be sealed into the longitudinal sealing seam along only a part of the longitudinal sealing seam width in order, for example, not to excessively influence the outer appearance of the longitudinal seam seam and to keep it as narrow as possible, at least optically.
  • the head region is closed with a top seal seam and the first edge zone is sealed into the top seal seam.
  • the integration of the upper edge (first edge zone) of the closing flap into the top-seal seam enables the opening area or opening to be as close as possible for the first time the top seal can be brought.
  • the chute can be opened close to the top seal or immediately adjacent to the top seal. This is possible only because a separate sealing seam between the top seal seam and the opening region for attaching the upper edge (first edge zone) of the closure flap is dispensed with.
  • the use of the film is optimized in a production of the bag, because of a de facto unusable upper bag volume above the lower edge (located towards the foot area) of the closing flap can be largely dispensed with.
  • the film used in bag making can be used to a greater extent to produce a useful lower bag volume, ultimately resulting in more efficient film usage.
  • the bag can ultimately be made smaller or, viewed differently, foil material can be saved for a given usable bag volume.
  • the reduced in relation to the known bag upper bag volume has an additional effect Favorable to the problem of the known bag from folding out of lying above the opening portion of the gusset from.
  • a reduced upper bag volume ultimately also means a lower maximum pressure on the closure tab from inside the bag.
  • the top seal has a top seal margin. Similar to the two longitudinal sealing seams, it may be advantageous if the first edge zone is sealed into the top seal seam along the full top seal seam width or along part of the top seal seam width. Again, the considerations discussed in relation to the longitudinal seam approach in a figurative sense with respect to anchoring in the top seal and outer appearance of the top seal.
  • the opening region or the opening or ultimately an upper edge of the chute can be located at least within a region defined by the size of the closing tab at a freely selectable distance adjacent to the top-seal seam.
  • the opening area or the opening or the upper edge of the chute is arranged directly adjacent to the top seal seam. This means that the upper edge of the chute can either be spaced around a tab that can be pulled out of the gusset or directly below the top seal. In both cases, the advantage is obtained that the upper, unusable bag volume (above the lower edge of the closing tab) can be kept as low as possible.
  • Immediately adjacent to the top seal should mean here in a range of 0 to 5 cm, preferably in a range of 0.5 to 2 cm.
  • the closure part extends from the first longitudinal seam to the end extends to the second longitudinal seam, so along the entire width of the gusset. Then, the entire width of the gusset can be used as width of the chute. In the event that this is not desired, however, the closure part can also be made narrower. Then, suitably, the width of the chute to the width of the closure part adapted to be narrower than the width of the gusset dimensioned.
  • the closure part has proved advantageous for the closure part to have a first closure element fixed on the inside of the side fold and a second closure element cooperating therewith fixed to the closure flap, and the first and the second closure element immediately adjacent to the opening region or at a distance from the latter Opening portion is arranged in the direction of the foot region, wherein the first closure element on the inside and the second closure element are fixed to that of the inside facing side of the closure flap.
  • the size of the upper bag volume can thus be determined as a function of the width of the closure element and / or the width of the opening region. In the present case, the width is measured in the longitudinal direction of the gusset. As a distance, a range of 0 to 5 cm, preferably a range of 0 to 2 cm, are used.
  • the closure elements may be formed by parts of a zipper.
  • the first closure element is a first Velcro strip with a first Velcro area, which is bounded on the one hand by a first sealing flange located towards the head region and on the other hand by a second sealing flange located towards the foot region
  • the second closure element is a second Velcro strip with a second Velcro region which is delimited on the one hand by a third sealing flange located towards the head region and on the other hand by a fourth sealing flange located towards the foot region, wherein the third sealing flange is located immediately adjacent to the opening region or at a distance from the opening region in the direction of the foot region and sealed with the sealing tongue
  • the two Velcro strips are parallel to each other and transverse to the longitudinal direction preferably 90 ° transverse to the longitudinal direction.
  • the size of the upper bag volume can now be determined as a function of the width of the third sealing flange. As a distance, a range of 0 to 5 cm, preferably a range of
  • the production of the top seal occurs after the production of the first and the second longitudinal seam. This ensures that first the reclosure can be positioned on the inside of the flat spread film, then a Hose formation and production of the longitudinal sealing seams with sealed second and third marginal zone of the closing sheet and structuring of the side folds can take place and only after that the pouch is closed on the head side.
  • the production of the respective sealing seams (longitudinal sealing seams and top seal seam) takes place with the aid of pairs of sealing jaws, which are heated and pressed against one another with sections of the film lying between them.
  • the Velcro areas of the two Velcro strips can be identical or designed differently.
  • the respective gusset may be formed along the entire length of the bag or only along an area below the top seal.
  • the bag can already be closed at the head end during its manufacture and can be preassembled open on the foot side or open on the head end and closed on the foot side, thus being delivered.
  • the method of its manufacture for closing the bag comprises the step of closing the head region with sealing of the first edge zone in the top seal.
  • This process step may e.g. be carried out at a bag manufacturer. But it can also be carried out at a bottler who fills the pre-assembled bag open at the top with packaged goods and then closes it with the top seal.
  • the bag produced in this way has a top-seal seam with a sealed-in first edge zone.
  • a bag 1 is shown, which is formed as a gusseted bag and which is made of a flexible film 2 made of plastic, which forms the wall of the bag 1.
  • the film 2 has multiple layers, wherein at least one outer side 10 (or outer wall or outer layer of the film 2 called) and a sealable inner side 16 (or outer wall or outer layer of the film 2 called) (see, eg Fig. 3 or 4 and 5 ) exists.
  • the 1 illustrated bag 1 has a front wall 3 and a rear wall 4 and a head portion 5, which is closed along its entire width with a top seal 6, and a foot portion 7, which is closed along its entire width with a candidaturesiegelnaht 8, and a longitudinal direction between the head area and the foot area extending the front wall 3 with the rear wall 4 connecting first side fold 9.
  • the bag 1 has a second, but in the perspective of Fig. 1 not visible and therefore only hinted, gusset 26 on.
  • the first gusset 9 is bounded by a first longitudinal sealing seam 35 towards the front wall 3 and by a second longitudinal sealing seam 36 towards the rear wall 4.
  • the second gusset 26 is limited by a third longitudinal sealing seam 37 toward the front wall 3 and by a fourth longitudinal sealing seam 38 toward the rear wall 4.
  • the second gusset 26 will not be discussed further below, because the invention will be discussed with reference to the first gusset 9.
  • the respective end of each side gusset is sealed to itself at the head end in the area of the top seal seam 6 as well as at the foot side in the area of the foot seal seam 8 in order to obtain the illustrated shape of the bag 1.
  • the bag 1 can be closed on the head side and opened on the foot side or opened at the head end and prefabricated on the foot side.
  • the unilaterally open bag becomes then delivered to a bottler, there filled depending on the situation by the still open head area 5 or foot area 7 with packaged goods and then closed by the respective sealed seam 6 or 8.
  • Fig. 2 puts one in the Fig. 1 All longitudinal sealing seams 35 to 38 have a longitudinal sealing seam width LSW measured in the transverse direction to the longitudinal direction of the side gusset 9. Measured with respect to an outer edge of the longitudinal sealing seams 35 or 36, the fully closed side gusset 9 has a side-folding depth GD which is in Fig. 3 is registered. In the Fig. 2 is further registered a KopfsiegelnahWeite HSW, which is measured in the longitudinal direction of the gusset 9.
  • the first gusset 9 has an opening portion 11 with a reclosure 12 attached to the inside 16 (not visible from outside).
  • the reclosure 12 serves to form a resealable chute 24 (see Fig. 6 ).
  • the reclosure 12 has a closing flap 17 which covers the opening area 11 and adjacent edge areas. Details of the closing tab 17, their positioning and their interaction with other components are in the Fig. 3 . 4 and 5 shown.
  • the closure flap 17 is fixed along its edge 18 with the recess of a contiguous region 19 on the inner side 16 of the first gusset 9.
  • the rim 18 delimits a first edge zone 32, which extends substantially parallel to the top seal 6, a second edge zone 33 and a third edge zone 34, wherein the second and third edge zones 33 and 34 are substantially parallel to the longitudinal direction of the first edge zone 32 extend in the direction of the foot area 7.
  • the edge zones 32 to 34 are in the FIG. 4 hatched shown.
  • a closure member 20 is arranged, which will be discussed below.
  • the closing flap 17 has a width which, adapted to the width of the side fold 9, in the present case slightly narrower (about 1 mm) than the width of the side fold 9.
  • the closing flap 17 is at least on both sides (front and back of the Closing flap 17) over the entire surface of a sealable material and is therefore sealable on both sides.
  • the first gusset 9 also has on the first gusset 9 adjacent to the opening portion 11 arranged actuating means 13 for actuating the reclosure 12 and consequently also for actuating the chute 24 (see Fig. 1 ).
  • the actuating means 13 have a grip area 14 for engagement with the fingers of a user's hand (not shown) and a fastening area 15 for securing the grip area 14 to the outside 10 of the side fold 9, the grip area 14 in the present case with the aid of adhesive (not shown) is attached to the outside 10 ( Fig. 1 . Fig. 2, Fig. 3).
  • Fig. 2 shows the closed chute 24 with the reclosure 12 in the closed state.
  • Fig. 6 shows the reclosure 12 and the chute 24 in the open state.
  • the grip area 14 is oriented transversely to the longitudinal direction and positioned centrally to the side fold 9.
  • the gusset 9 has a longitudinally extending central fold line 25 and the handle portion 14 is folded according to the fold line 25.
  • the mounting portion 15 is oriented and folded in an analogous manner as the handle portion 14 and closer to the opening portion 11 and the opening 23 arranged as the handle portion 14.
  • the procedure according to the invention is followed. First, (see Fig. 4 ) fed to the film 2 in the form of a film strip, as by the in the FIG. 3 indicated arrow 30 is indicated.
  • the bag 1 is made by forming a tube, wherein a right film edge 31 is folded over to the left film edge 47 of the film strip, so that there are limited by the reference numeral 38 zones of the inner side 16 to each other. By heat action along these zones, the fourth longitudinal sealing seam 38 is produced, which seals the bag 1 along the side.
  • Marking lines M9, M10 and M11 which are interrupted with a single point indicate folding edges at which the inner side 16 of the film 2 is folded against each other, after which the three longitudinal sealing seams 35, 36 and 37 are produced by heat.
  • Marking lines M12 and M13 interrupted by two dots indicate the position of the first fold line 25 of the first side fold 9 and the position of a second fold line 29 of the second side fold 26.
  • Transverse to the zones of the film 2 intended for the longitudinal sealing seams 35 to 38 are those intended for the foot seam 8 (between M15 and M16 for the preceding bag 1) and the top seam 6 (between M14 and M16 for the bag 1 currently being processed) Zones, wherein after the formation of tubes and formation of the side gussets 9 and 26, the top seal 6 is produced and a bag 1 is separated from another adjacent bag 1 along the marking line M16. Through the open foot area 7 through the bag 1 with filling material (not shown) is filled and then the qualitativesiegelnaht 8 produced.
  • the opening region 11 is defined, for example by creating a laser perforation in the region designated as the first gusset 9, just beside the region designated as the top seal 6 (see the result visualized in FIG Fig. 4 ).
  • the laser perforation defines a continuous line that has an opening 23 (see FIG Fig. 6 ) limited to filling material removal.
  • the actuating means 13 is fixed by gluing the attachment portion 15 to the outside 10 on that side of the film 2 which is intended as the outside 10 (see the result visualized, for example, in FIG Fig. 4 ).
  • the closure part 20 is realized by a Velcro fastener and is divided into a first closure element 27 and a cooperating therewith second closure element 28, which in cross-section in the FIG. 5 are shown in detail.
  • the first closure element 27 has a first Velcro strip 39 with a first Velcro region 40, a first sealing flange 41 and a second sealing flange 42.
  • the second closure element 28 is formed identically to the first closure element 27 and has a second Velcro strip 43 with a second Velcro region 44, a third sealing flange 45 and a fourth sealing flange 46.
  • first the first closure element 27 with the first and the second sealing flanges 41 and 42 is sealed on the inner side 16 (see result visualized in FIG Fig. 4 and 5 ).
  • the first hook-and-loop region 40 is oriented transversely to the longitudinal direction, the first sealing flange 41 being offset parallel to it in the direction of the head region 5 and the second sealing flange 42 being offset parallel thereto in the direction of the foot region 7.
  • the second closure element 28 is sealed to the sealing tab 17 with the third and fourth sealing flanges 45 and 46.
  • the closing tab 17 is fixed by covering the two Velcro areas 40 and 44 at its scheduled position covering the opening portion 11 from the inside 16 ago, wherein the two Velcro areas 40 and 44 are positioned congruent to each other and engaged.
  • the second Velcro area 44 is thereby oriented transversely to the longitudinal direction, the third sealing flange 45 being offset parallel thereto in the direction of the head area 5 and the fourth sealing flange 46 being offset parallel thereto in the direction of the foot area 7.
  • the length of the closing flap 17, measured in the longitudinal direction, is dimensioned such that it reaches approximately half of the top-seal width HSW (see FIG Fig. 5 ).
  • the first sealing flange 41 and the third sealing flange 45 are offset offset from the opening region 11 in the direction of the foot region 7 at a distance of a few millimeters.
  • said folding of the film 2 is now carried out along the punctuated marking line M9, M10, M11, wherein the closing flap 17 is wrapped at its second and third edge zones 33 and 34 between regions of the inner side 16.
  • the first and the second longitudinal sealing seam 35 and 36 are generated in this area by heat, wherein at the same time a sealing of the second and third Edge zone 33 and 34 in the respective longitudinal sealing seam 35 and 36 takes place (see result visualized in FIGS. 2 and 3 ).
  • the foot seal seam 8 is produced and the prefabricated bag 1, closed at the foot, is delivered to a bottler of packaged goods for filling.
  • the top seal seam 6 is produced by compressing the head region 5 and the action of heat, at the same time sealing the first edge zone 32 into the top seal seam 6, as described in US Pat Fig. 3 is shown.
  • the bag 1 thus produced allows the positioning of the chute 24 in the immediate vicinity of the continuously sealed top seal 6, as shown in FIG Fig. 6 is shown.
  • the film of the first gusset 9 along the laser perforation of the opening portion 11 was torn open. After complete removal of the film 2 from the opening portion 11 and further tightening on the handle portion 14, the opening 23 is obtained.
  • Characterized the Verschwinlasche 17 is formed in the form of a projecting into the interior of the bag 1 wedge structure anchored in the top seal 6 and connected to the longitudinal sealing seams 35 and 36 outwardly between the front and the rear wall 3, 4 clamped outwardly folded out the closure flap 17 in the direction of the opening chute 24 reliably prevented.
  • the fully open chute 24 is also a part of the second Velcro tape 43 can be seen.
  • the bag 1 shown in FIG. 10 has a flat foot region 7.
  • the lower ends of the gussets are inward placed and the predominantlysiegelnaht 8 is folded over and fixed by adhesive on the outside 10.
  • Such a foot area is flat.
  • the edge 18 of the closing tab 17 extends into the two longitudinal sealing seams 35 and 36 and also into the top seal 6.
  • the bag 1 described here is prefabricated open on the head side, delivered to a bottler, filled there with packaged goods and there closed after its filling by the top seal 6, so that the first edge zone 32 in the top seal 6, the second edge zone 33 is sealed in the first longitudinal seam 35 and the third edge zone 34 in the second longitudinal seam 36.

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  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
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Claims (14)

  1. Sachet (1), lequel est fabriqué dans un film (2) comportant une face extérieure (10) et une face intérieure (16) scellable et comporte une paroi avant (3) et une paroi arrière (4) et une zone haute (5) et une zone basse (7) et au moins un pli latéral (9) s'étendant en direction longitudinale entre la zone haute (5) et la zone basse (7), le pli latéral (9) :
    - étant délimité par un premier joint de scellement (35) longitudinal par rapport à la paroi avant (3) et par un deuxième joint de scellement (36) longitudinal par rapport à la paroi arrière (4)
    et
    - comportant une zone d'ouverture (11) et
    - comportant une refermeture (12) montée sur la face intérieure (16), la refermeture (12) comportant une patte de fermeture (17) recouvrant la zone d'ouverture (11) ainsi que des zones marginales adjacentes à cette dernière, la patte de fermeture (17) présentant une largeur adaptée à la largeur du pli latéral (9) et le long de son bord (18), qui comporte une première zone marginale (32) et une deuxième et troisième zones marginales (33, 34), à l'exception d'une zone (19) continue entre la deuxième et la troisième zones marginales (33, 34) dans laquelle est placée une partie de fermeture (20), étant fixée sur la face intérieure (16) par la deuxième zone marginale (33) scellée dans le premier joint de scellement (35) longitudinal et par la troisième zone marginale (34) scellée dans le deuxième joint de scellement (36) longitudinal.
  2. Sachet selon la revendication 1, le premier et le deuxième joints de scellement (35, 36) longitudinal présentant une largeur (LSW) de joint de scellement longitudinal et la deuxième zone marginale (33) étant scellée le long de la pleine largeur (LSW) de joint de scellement longitudinal ou le long d'une partie de la largeur (LSW) de joint de scellement longitudinal dans le premier joint de scellement (35) longitudinal et la troisième zone marginale (34) étant scellée le long de la pleine largeur (LSW) de joint de scellement longitudinal ou le long d'une partie de la largeur (LSW) de joint de scellement longitudinal dans le deuxième joint de scellement (36) longitudinal.
  3. Sachet selon l'une quelconque des revendications précédentes, la zone haute (5) étant fermée par un joint de scellement (6) supérieur et la première zone marginale (32) étant scellée dans le joint de scellement (26) supérieur.
  4. Sachet selon la revendication 3, le joint de scellement (6) supérieur présentant une largeur (HSW) de joint de scellement supérieur et la première zone marginale (32) étant scellée le long de la pleine largeur (HSW) de joint de scellement supérieur ou le long d'une partie de la largeur (HSW) de joint de scellement supérieur dans le joint de scellement (6) supérieur.
  5. Sachet (1) selon la revendication 3 ou la revendication 4, la zone d'ouverture (11) étant placée dans le voisinage direct du joint de scellement (6) supérieur.
  6. Sachet (1) selon l'une quelconque des revendications précédentes, la partie de fermeture (20) s'étendant du premier joint de scellement (35) longitudinal jusqu'au deuxième joint de scellement (36) longitudinal.
  7. Sachet (1) selon l'une quelconque des revendications précédentes, la partie de fermeture (20) comportant un premier élément de fermeture (27) fixé sur la face intérieure (16) du pli latéral (9) et un deuxième élément de fermeture (28) interagissant avec ce dernier, fixé sur la patte de fermeture (17) et le premier, ainsi que le deuxième éléments de fermeture (27, 28) étant placés directement au voisinage de la zone d'ouverture (11) ou à une distance de la zone d'ouverture (11) en direction de la zone basse (7), le premier élément de fermeture (27) étant fixé sur la face intérieure (16) et le deuxième élément de fermeture (28) étant fixé sur la face de la patte de fermeture (17) qui est dirigée vers la face intérieure (16).
  8. Sachet (1) selon la revendication 7, le premier élément de fermeture (27) comportant une bande scratch (39) avec une première zone agrippante (40), qui est délimitée d'une part par une première collerette scellée (41) placée en direction de la zone haute (5) et d'autre part, par une deuxième collerette scellée (42) placée en direction de la zone basse (7) et le deuxième élément de fermeture (28) comportant une deuxième bande scratch (43) avec une deuxième zone agrippante (44), qui est délimitée d'une part par une troisième collerette scellée (45) placée en direction de la zone haute (5) et d'autre part, par une quatrième collerette scellée (46) placée en direction de la zone basse (7) et la troisième collerette scellée (45) étant localisée directement au voisinage de la zone d'ouverture (11) ou à une distance de la zone d'ouverture (11), en direction de la zone basse (7) et étant scellée avec la patte de fermeture (17).
  9. Procédé de fabrication d'un sachet (1) en un film (2) comportant une face définie en tant que face extérieure (10) et une face définie en tant que face intérieure (16) scellable du sachet (1), le sachet (1) comportant une paroi avant (3) et une paroi arrière (4) et une zone haute (5) et une zone basse (7) et au moins un pli latéral (9) s'étendant en direction longitudinale entre la zone haute (5) et la zone basse (7), le pli latéral (9) étant délimité par un premier joint de scellement (35) longitudinal par rapport à la paroi avant (3) et par un deuxième joint de scellement (36) longitudinal par rapport à la paroi arrière (4), le procédé comportant les étapes suivantes, à savoir :
    - amenage du film (2) et
    - définition d'une zone d'ouverture (11) à l'intérieur d'une zone du film (2) qui est prévue pour former le pli latéral (9) et
    - positionnement d'une patte de fermeture (17) aux fins de la formation d'une refermeture (12) à l'intérieur de la zone du film (2) prévue pour la formation du pli latéral (9), de telle sorte que la patte de fermeture (17) recouvre la zone d'ouverture (11) ainsi que des zones marginales adjacentes à cette dernière et que le long de son bord (18), à l'exception d'une zone (19) continue, dans laquelle est placée une partie de fermeture (20) puisse être fixée sur la face intérieure (16), le bord (18) comportant une première zone marginale (32) et une deuxième et une troisième zones marginales (33, 34) qui s'y raccordent et la patte de fermeture (17) présentant une largeur adaptée à la largeur du pli latéral (9), de sorte que la deuxième zone marginale (33) arrive jusque dans une zone du film (2) prévue pour la création du premier joint de scellement (35) longitudinal et que la troisième zone marginale (34) arrive jusque dans une zone du film (2) prévue pour la création du deuxième joint de scellement (36) longitudinal et
    - création du premier joint de scellement (35) longitudinal avec la deuxième zone marginale (33) intégrée par scellage et
    - création du deuxième joint de scellement (36) longitudinal avec la troisième zone marginale (34) intégrée par scellage.
  10. Procédé selon la revendication 9, le premier et le deuxième joints de scellement (35, 36) longitudinal à créer présentant une largeur (LSW) de joint de scellement longitudinal et on adapte la largeur de la patte de fermeture à la largeur du pli latéral (9), de telle sorte que la deuxième zone marginale (33) soit scellée le long de la pleine largeur (LSW) de joint de scellement longitudinal ou le long d'une partie de la largeur (LSW) de joint de scellement longitudinal dans le premier joint de scellement (35) longitudinal et que la troisième zone marginale (34) soit scellée le long de la pleine largeur (LSW) de joint de scellement longitudinal ou le long d'une partie de la largeur (LSW) de joint de scellement longitudinal dans le deuxième joint de scellement (36) longitudinal.
  11. Procédé selon l'une quelconque des revendications 9 ou 10, le positionnement de la patte de fermeture (17) ou une adaptation de la longueur de la patte de fermeture (17) s'effectuant de telle sorte que par sa première zone marginale (32) dirigée vers la zone haute (5) à créer du sachet (1), la patte de fermeture (17) arrive jusque dans une zone du film (2) prévue pour la création d'un joint de scellement (6) supérieur aux fins de la fermeture de la zone haute (5) et une fermeture de la zone haute (5) s'effectuant par une création d'un joint de scellement (6) supérieur, avec une intégration par scellage de la première zone marginale (32).
  12. Procédé selon la revendication 11, le joint de scellement (6) supérieur à créer présentant une largeur (HSW) de joint de scellement supérieur et le positionnement de la patte de fermeture (17) ou l'adaptation de la longueur de la patte de fermeture (17) s'effectuant de telle sorte que la première zone marginale (32) soit intégrée par scellage le long de la pleine largeur (HSW) du joint de scellement supérieur ou le long d'une partie de la largeur (HSW) du joint de scellement supérieur dans le joint de scellement (6) supérieur.
  13. Procédé selon l'une quelconque des revendications 11 ou 12, la création du joint de scellement (6) supérieur s'effectuant après la création du premier et du deuxième joints de scellement (35, 36) longitudinal.
  14. Procédé selon l'une quelconque des revendications 11 ou 12 précédentes, l'étape de la définition de la zone d'ouverture (11) comportant un positionnement de la zone d'ouverture (11) directement au voisinage de la zone du film (2), laquelle zone est prévue pour la création du joint de scellement (6) supérieur.
EP20110170394 2011-06-17 2011-06-17 Sachet doté d'une fermeture réutilisable comprenant une bride de fermeture scellée dans le joint de scellement longitudinal Not-in-force EP2535294B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20110170394 EP2535294B1 (fr) 2011-06-17 2011-06-17 Sachet doté d'une fermeture réutilisable comprenant une bride de fermeture scellée dans le joint de scellement longitudinal
DE201120105025 DE202011105025U1 (de) 2011-06-17 2011-08-26 Beutel mit Verschließlasche aufweisendem Wiederverschluß eingesiegelt in Längssiegelnaht

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110170394 EP2535294B1 (fr) 2011-06-17 2011-06-17 Sachet doté d'une fermeture réutilisable comprenant une bride de fermeture scellée dans le joint de scellement longitudinal

Publications (2)

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EP2535294A1 EP2535294A1 (fr) 2012-12-19
EP2535294B1 true EP2535294B1 (fr) 2013-12-25

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EP20110170394 Not-in-force EP2535294B1 (fr) 2011-06-17 2011-06-17 Sachet doté d'une fermeture réutilisable comprenant une bride de fermeture scellée dans le joint de scellement longitudinal

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EP (1) EP2535294B1 (fr)
DE (1) DE202011105025U1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821610B1 (fr) * 2001-03-01 2003-08-29 Masterfoods Sac a aliments et notamment sac a aliments de type en granules
AU2003225998A1 (en) * 2002-03-26 2003-10-13 Mark Steele Flexible package with a transverse access panel device
DE10340099A1 (de) * 2003-08-30 2005-03-24 B & B Verpackungstechnik Gmbh & Co. Kg Beutel oder Sack aus Kunststoffolie und Verfahren zur Herstellung
DE102006010576A1 (de) 2006-03-06 2007-09-13 Reuther Verpackung Gmbh & Co. Kg Beutel
DE202010014773U1 (de) * 2010-10-29 2011-02-17 Amcor Flexibles Kreuzlingen Ag Verpackung mit wiederverschliessbarer Schütte

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EP2535294A1 (fr) 2012-12-19
DE202011105025U1 (de) 2011-11-23

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