EP2415685B1 - Sachet plastique doté d'une fermeture refermable côté tête - Google Patents

Sachet plastique doté d'une fermeture refermable côté tête Download PDF

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Publication number
EP2415685B1
EP2415685B1 EP10172241.1A EP10172241A EP2415685B1 EP 2415685 B1 EP2415685 B1 EP 2415685B1 EP 10172241 A EP10172241 A EP 10172241A EP 2415685 B1 EP2415685 B1 EP 2415685B1
Authority
EP
European Patent Office
Prior art keywords
foot
area
film bag
film
partial area
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
EP10172241.1A
Other languages
German (de)
English (en)
Other versions
EP2415685A1 (fr
Inventor
Oswald Watterott
Bernhard Mumelter
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 EP10172241.1A priority Critical patent/EP2415685B1/fr
Publication of EP2415685A1 publication Critical patent/EP2415685A1/fr
Application granted granted Critical
Publication of EP2415685B1 publication Critical patent/EP2415685B1/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
    • B65D31/08—Bags or like containers made of paper and having structural provision for thickness of contents with block bottoms
    • 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
    • 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
    • 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
    • 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
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0016—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom made from already formed bags
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • 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
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined

Definitions

  • the invention relates to a foil bag with a head-side reclosure.
  • the invention further relates to a method for the foot-side closing of a foil bag with a head-side reclosure.
  • the invention further relates to a device for closing a film bag with a head-side reclosure.
  • the invention further relates to a film bag with a head-side reclosure and a foot end closed end.
  • a foil bag of the type mentioned in the first paragraph is known to the Applicant.
  • Such a foil bag is in the Fig. 1 displayed.
  • the Indian Fig. 1 illustrated film bag 1 is made of a film 2 and has a front wall 3, a rear wall 4, a left gusset 5 and a in the Fig. 1 invisible right gusset 6, and a head-side end 7 and a foot-side end 8.
  • a reclosure 9 which is designed in the present case as a so-called slider consisting of a zipper and a cooperating tab.
  • the Indian Fig. 1 shown foil bag is already filled with contents, so that the front wall 3 and the rear wall 4 slightly curved from the two side folds 5 and 6 stand out.
  • the foot-side end 8 is divided into a first complicatteil Council 14 and a second complicatteil Scheme 15.
  • the first complicatteil Scheme 14 forms a foot-side lug 10, which was produced by sealing the inner sides of the film 2. Starting from the foot-side lug 10, within the second foot portion 15, the interior of the foil bag 1 opens towards the two walls 3 and 4.
  • the head-side end 7 is also divided into a first head portion 56, which has a relatively wide configuration, and a second head portion 57.
  • a completely hidden reclosure 9 (a so-called hooded-top -Slider) integrated.
  • hooded-top -Slider Such an integration in the first header section 56 is for example from the patent EP1640271B1 known.
  • Starting from the first head portion 56 opens within the second head portion 57 of the interior of the film bag 1 towards the two walls 3 and 4.
  • Fig. 2 is the one in the Fig. 1 represented foil bag 1 shown in a second perspective, in the present case, the front or the front wall 3 is viewed from the front.
  • the two gussets 5 and 6 are not visible in the present case. However, they can certainly protrude over the edges of the front wall 3 and the rear wall 4 with appropriate filling or bulge out easily.
  • the film 2 used in the production of the film bag 1 is fragmentary in the form of a cross section through the film 2 in the Fig. 3 shown.
  • the film 2 has an inner layer 3, which is sealable, and an outer layer 12, which is not sealable.
  • the outer layer 12 forms the outside of the film bag 1 and the inner layer 11 forms the inside of the film bag 1, which faces the contents.
  • four intermediate layers are shown between the inner layer 11 and the outer layer 12.
  • These interlayers 13 on the one hand serve the stability of the film 2. They increase the tear resistance of the film 2. However, they can also realize barrier functions in order to prevent an exchange of materials between the interior and the exterior of the film bag 1.
  • the number of spacers 13 is arbitrarily assumed to be four in the present case, but may vary from zero to sometimes even ten to twenty according to the particular application.
  • the foot-side flag 10 has a considerable size, which usually results from the device used for packaging, so the packaging or packaging machine or sealing machine.
  • packaging the film bag 1 is usually transported oriented with the ready-made head end 7 down and filled by his open foot-side end 8.
  • the foot-side end 8 closed.
  • the areas of the film 2 which are free of filling material are pressed tightly against one another in the first foot portion 14 and then sealed with the aid of a sealing tool by contact with the inner layers 11 of the individual walls 3, 4, 5 and 6 with the aid of a sealing tool.
  • the film bag 1 thus produced has a significant problem because it can not be stored upright, ie with the base end 8 down and with the head end 7 upwards.
  • the foil bag 1 can de facto only as in the Fig. 1 stored lying or a plurality of foil bags 1 stacked one above the other or stored stacked.
  • the problem of the protruding foot-side lug 10 is closely linked to that of the head-side first head portion 56, since the foot-side lug 10 and the first head portion 56 see confusingly similar. A careless user who does not stick to possibly printed on the foil pouch 1 usage instructions, therefore, the head-side or the foot-side end easily confused or overlooked the hidden re-closure simply. This often leads to the problem that when opening a cutting tool is used to forcibly open the foil bag.
  • GB 689 727 A discloses a foil pouch according to the preamble of claim 1; the flipping of the flag disclosed here requires an additional gluing process or the like.
  • the object is achieved on the one hand by a film bag according to claim 1 and on the other hand by a method for closing a film bag according to claim 13, and by a device for closing a film bag according to claim 17.
  • the subject of the invention is therefore a foil bag which is made of a foil, wherein the foil on its first side a non-sealable Layer and the non-sealable layer forms an outer layer of the film bag and wherein the film adjacent to the outer layer has a sealable layer, and wherein the film bag has a front and rear wall and between the front and rear wall inserted left and right gussets, and in an open first end section intended as a foot region, a first foot part area for forming a peripheral foot part and a second foot part adjoining thereto, wherein in the foot area the front or rear wall is within the area of at least one of the side folds both in the first foot part area also in the second Schauteil Scheme has an opening in at least the outer layer, through which opening the sealable layer is accessible from outside the film bag, and a position of the opening is selected so that when produced and folded to the secondmonyteil Scheme fußs Two-part flag of the sealable layer accessible from outside the film bag come to lie overlapping each other and in a
  • the subject of the invention is a method for closing a foil bag according to the invention, wherein the method comprises the following steps, namely realizing the foot-side flag by forming a first transverse seam in the border region of the firstticianteil Maschinenteil Maschinens and the second whoteil Maschinens and moving the foot-side flag to the second Foot portion such that the two regions of the sealable layers overlap each other, and sealing the two regions of the sealable layers together in the region of the overlap. It may be advantageous if previously forms a flat layer structure consisting of front and rear wall and partially interposed inserted closed gussets.
  • the subject of the invention is a device for closing a film bag according to the invention, the device comprising: -) a first sealing step for forming a first transverse seam in the boundary region of the first foot portion and the second foot portion, and -) a transfer device for transferring the foot-side flag the second foot part area such that two areas of the sealable layers overlap one another, and -) a second sealing step for sealing together the two areas of the sealable layers in the region of the overlap.
  • the device comprises means for producing a flat layer structure consisting of front and rear wall and partially inserted therebetween closed gussets, so that the first sealing step is fed to a suitably prepared foil bag.
  • a film bag (or an intermediate product in the form of a film tube) is processed, which is made of a film, wherein the film has a non-sealable layer on its first side and the non-sealable layer has an outer layer the film bag forms and wherein the film adjacent to the outer layer has a sealable layer.
  • the foil bag has a front and rear wall and between the front and rear wall inserted left and right side gussets and in an open first end portion defined as a foot portion a first alleviatteil Scheme to form a peripheral orhow.99.00 flag and an adjacent second devisteil Scheme, wherein in the foot area, the front or the rear wall within the range of at least one of the gussets both in the first monteil Scheme and in the second torqueteil Scheme an opening in at least the outer layer, through which opening the sealable layer is accessible from outside the foil bag, and a position of the opening is chosen so that criz_herhyroidter and folded to the secondmonyteil Scheme foot-side flag two Regions of the sealable layer accessible from outside the film bag come to lie overlapping each other.
  • the foot region of the film bag produced in this way is characterized in that the flag no longer protrudes from the bag in the longitudinal direction of the film bag, but de facto attached to the outside of the bag or is fixed there. It can therefore no longer confused with the head portion of the film bag, which is in the form of a relatively narrow, but over the entire width of the head area extensively extending head-side flag is formed, in which the reclosure is partially hidden integrated. Since the reclosure is integrated only partially hidden, it is always visible and recognizable to the user of the film bag and it is unnecessary to point out by appropriate imprints on the foil bag on its existence or its correct handling.
  • a flat edge-side ply structure constructed of film elements or sections of the different sides (front, back, side fold) of the film bag to understand, which is obtained by appropriate sealing measures, so that the individual film sections lie flat against each other.
  • the invention turns away from conventional - trivial - attempts to solve the problem defined above, in which experiments mostly adhesive for fixing the foot-side flag is used on the outside of the bag.
  • Adhesive-based solutions stand out Usually characterized disadvantageous way that accumulate in edge regions of the bonded film layers in which the adhesive is more or less accessible from the outside, usually considerable impurities that adhere to the adhesive and possibly clump there.
  • there is the problem with the use of adhesive that it already at very low temperatures - in other words - at low heat loss its adhesive properties and there is a risk of detachment of the glued flag.
  • adhesive-based solutions initially appear to be quite reasonable solutions to the above-defined problem immediately after their preparation. In real use, however, there are significant problems because the stability of the adhesive leaves something to be desired and ultimately the contamination in the bonded area of the film leaves a lesser impression on the user of the film bag, not only on the film bag itself, but ultimately on the product packed therewith.
  • sealable properties of the film are used to seal the film bag.
  • Sealable means that two layers of material bond together by the action of heat, as is the case, for example, with thermoplastic materials.
  • the solution according to the invention distances itself from the problems of adhesive-based solution attempts discussed above in that no contaminants can adhere to the edge regions of the layers to be sealed and the seal can be broken only with the use of force or relatively high temperatures which would even damage the bag structure , It is thus provided a robust and sustainable clean solution.
  • the production of adhering to the foil bag is also foot-side flag much easier, because in the entire production of the foil bag only a single process technology - namely heat seal - is used. So there is no additional bonding process needed.
  • the reduction or focus on a single bonding technology, namely heat sealing ultimately also significantly increases the efficiency of the manufacturing process.
  • the opening in at least the outer layer is within the range of at least one of the gussets.
  • this area is meant that it is the projection of the folded or inserted between the front wall and the rear wall and located in the closed state gusset on the front wall or the rear wall.
  • the position of the apertures is further confined within this area of the projection such that the apertures are outside those edge areas where e.g. Longitudinal sealing seams and a transverse sealing seam are produced or produced in the course of the production of the film bag.
  • This is in contrast to a fully open gusset, as this is for example in a completely filled bag, in which the gusset, at least for the most part, resembles more a flat or slightly curved wall than an inlaid fold.
  • the film can basically be constructed in two layers, so that it has only an inner layer which is sealable and an outer layer which is not sealable.
  • an outer layer which is not sealable.
  • the outer layer can be removed very precisely, for example by sandblasting or grinding or by targeted material removal by the action of laser light, which requires a correspondingly high processing costs and a relatively high machining precision.
  • the opening extends through the entire film, so that the inner layer of the gusset is accessible from outside the film bag through the opening in the film.
  • the inner layer of a film section becomes accessible which is different from that film section which has the opening.
  • the sealable layer which is accessible from outside may also be an intermediate layer which is located within the layers of the film - e.g. between the outer layer and the inner layer - is embedded.
  • the outer layer and optionally adjacent to the sealable layer further intermediate layers in the direction of the outer layer to remove to expose the sealable intermediate layer, which serves for attaching the flag on the outside of the film bag.
  • the opening formed in the first foot portion and the second foot portion is a continuous opening, which may be, for example, opening strips a few millimeters or a few centimeters wide.
  • the continuous opening extends along the longitudinal direction of the gusset starting from a Boundary of the two whoteil Schemee in both monteil Anlagene, ie in the first and the second torqueteil Scheme inside.
  • the opening itself can take any shape. Thus, for example and not exhaustively enumerated round, oval, rectangular, serpentine or square shapes are possible. Also, the areal extent of the opening may be contiguous or e.g. be reticulate or ribbed interrupted.
  • the opening formed in the first foot portion and the second foot portion is realized by at least two separate openings spaced apart along the longitudinal direction of the side fold.
  • the shape or configuration of these separate openings for example, in turn, have any of the preceding paragraph mentioned form.
  • the boundary area of the two whoteil Schemee is free of openings.
  • This solution is particularly advantageous when in the border area between the two whoteil Schemeen sealing measures are necessary because in this case the sealing tools are not polluted by the freely accessible sealable layers.
  • this can also be prevented by the sealing tools having non-sealing zones at the corresponding position, which however would mean an adaptation of existing sealing tools.
  • This adaptation can be dispensed with in two separate openings, which are located at a distance to each other.
  • the foot-side flag can be fixed in the two areas of the respective gusset left and right to the bag and a disturbing folding away on the left or right side of the bag - as would be possible with a one-sided fixation - is reliably avoided.
  • the film bag can be present, for example, as an intermediate product for bag production as a head end and foot open hose structure and depending on the application initially closed on the foot side and subsequently filled through the open head section and finally closed at the top.
  • a reclosure is present, it has proved to be advantageous if the film bag is first completed on the head side, so equipped with its reclosure in the head area and / or by sealing the Head area is closed, and only then through the foot-side end portion, which is still open, filled through it.
  • a reclosure provided on the head side is contaminated by dusty filling material.
  • the bag can be reliably placed on his foot, without any protruding from him foot-side flag would hinder standing upright and camps.
  • the re-closure is integrated by sealing the reclosure (more precisely parts of the reclosure) with the sealable inner layer of the film of the film bag. It is advantageous if in the head region of the reclosure in the circumferential direction around the head area is sealed all around with the inner layer and the reclosure adjacent area of the inner layer are sealed together, so that a hermetic seal of the head area is obtained and only open closure elements of reclosure can form a removal opening for the contents, wherein the removal opening is accessible either through an opening in the front or the rear wall.
  • the reclosure is preferably designed as a so-called partially hidden (top) slider.
  • the slider has a zipper and a tab interacting with the zipper to open and close closure elements of the zipper. The rider must be moved from its home position to open the closure elements.
  • the upper edge of the bag is preferred by sealing with a transverse sealing seam locked. Underneath this transverse sealing seam there may be a perforation which extends over the entire width of the film bag and which allows the overlying part of the film bag to be torn off so that the top slider located below the perforation becomes accessible.
  • the front or the rear wall has a material recess, which is located at the starting position of the rider, so that the rider well visible and easily accessible across the head-side flag from the head-side flag - depending on its dimensions - about 1 to 3 mm protrudes.
  • This causes the slider or, more precisely, the slider to hide substantially all elements except the rider or are hidden in the flag.
  • the top slider may also be terminated by an e. the front wall tear-open film strip or tab are made available, without having to be demolished over the top slider located part of the film bag.
  • said perforation extending beyond the entire width of the film bag below the transverse seam can be dispensed with.
  • said perforation may exist and form part of the tab limiting perforation. In the latter case, a part of the head area that lies above the partially hidden slider can then be completely separated from the foil bag and the tab can also be used separately.
  • the front wall has said material recess in the form of a hole or a wall opening.
  • the location of this material recess is defined by the position of the rider in the closed state of the slider - so said starting position of the rider.
  • the shape and dimensions of the material recess are substantially adapted to the shape and dimension of the rider so that it is easily accessible and highly visible to a user.
  • the dimensions of the material recess are slightly larger than those of the rider chosen to be able to easily position the rider in the manufacturing process from the material recess and to ensure easy access to said tab.
  • the dimensions of the material recess are also chosen so small that access to the zipper or opening of the zipper without movement of the rider is not possible, the movement of the rider is prevented without actuation of said tab.
  • the Material recess through the rider freely accessible and clearly recognizable to a user of the film bag as part of an opening mechanism.
  • Adjacent to the material recess extends said removable from the front wall or at least foldable tab whose shape is chosen so that it exposes a range of movement of the rider along the zipper in the torn or folded out, so that the zipper by corresponding movement of the rider completely open or can be closed.
  • the preferred embodiment of a partially hidden slider discussed in the preceding paragraph has considerable advantages, which will be discussed in detail below.
  • the tab located adjacent to the rider parked in its home position is torn out of the front wall or at least folded out to allow the rider to move at all. Also in this advantageous aspect, the risk of accidental use of a cutting tool is completely avoided, because of the extent of the tab to be used limiting perforation and the visibility of the rider and possibly a small part of the zipper adjacent to the rider the action to be performed (tear out or fold out) in an intuitive way.
  • the slider is attached (sealed) to the rear wall of the film bag with one of its webs on the front wall and with the other web, preferably via a carrier sheet lying between this web and the rear wall, with which the web is sealed.
  • the slider is integrated in the head area so that it closes the bag contents tightly. Its interlocking closure elements (the zipper) protrude upwards and can be repeatedly opened and closed with the help of the rider when the slider is moved in one direction or the other.
  • a bottom region of the foil pouch could first be produced and sealed and the filling carried out by the not yet closed head region.
  • the slider would only have to be connected to one of its webs with e.g. be connected to the front wall, so that forms a filling between the other web and the rear wall.
  • this is disadvantageous because the yes upwardly projecting slider when filling the foil bag with filling material could collapse into the filling and could hinder the filling of the foil bag or even prevent.
  • a considerable contamination of the slider is to be expected.
  • the measure according to the invention of closing the bottom of the foil bag has proved to be advantageous. This is to be justified so that the film bag can already be filled with its fully hidden in the head area partially hidden slider and closed head down through the open bottom and only subsequently in a final step, the floor according to the invention can be closed so that the film bag can stand upright on its bottom despite the last occlusion of the soil.
  • the floor according to the invention can be closed so that the film bag can stand upright on its bottom despite the last occlusion of the soil.
  • the present foil bag can basically be worn with the hands by direct grab.
  • this is disadvantageous if welding development is to be expected since the film bag is made of a plastic film.
  • the development of perspiration favors an out of hand sliding of the foil bag.
  • the film bag could tend to kink at the access point of the hands, which can have a negative impact on the strength of the plastic film when repeated at the same point, so that they could possibly be damaged at the kink.
  • the film bag can only carry up to a relatively low weight and only with very symmetrical dimensions easily with your hands.
  • the Applicant has recognized the task to equip a foil bag according to the invention with a handle that allows a reliable and easy carrying the foil bag without damaging it and without obstruction of the user, even if the foil bag is relatively heavy (eg 5 kg, 10 kg or 15 kg or a higher weight) and if the film bag also has extremely unsymmetrical dimensions (eg height / length of the front and back wall about 0.50 to 0.90 m, width of the front and back Back wall about 0.25 to 0.35 m, depth of gusset about 0.08 to 0.15 m).
  • the foil bag is relatively heavy (eg 5 kg, 10 kg or 15 kg or a higher weight) and if the film bag also has extremely unsymmetrical dimensions (eg height / length of the front and back wall about 0.50 to 0.90 m, width of the front and back Back wall about 0.25 to 0.35 m, depth of gusset about 0.08 to 0.15 m).
  • a handle located in this position prevents, on the one hand, that a foil bag dimensioned / proportioned according to the above-mentioned dimensions and fully loaded kinks solely by its weight.
  • a handle located in this position allows the foil pouch with its narrowest dimension to project up or down without any problems, next to the right or left leg of a user, dangling or swinging with a single hand.
  • This position of the film bag when worn which inevitably results from the advantageous positioning of the handle, allows the user to walk through the film bag without any obstruction.
  • the foil pouch does not have to be laboriously pushed away from the user's legs, as with all other possible positions of the handle with the carrying hand or additionally with the other hand, so as not to constantly dangle against the legs and thereby hinder the user while walking.
  • the design of the handle can be varied. However, it has proven to be advantageous for reasons of cost-saving and ease of manufacture that the handle has a handle portion which terminates at its edges in fasteners.
  • the handle is narrower than the fasteners and ergonomically adapted to the hand of a user.
  • the fastening parts are flat, e.g. formed square or rectangular or round or round shaped and glued to the outer layer of the film of the film bag over the entire surface.
  • the grip part and the fastening parts are integrally, e.g. in the form of a label made of plastic - possibly multi-layered - formed, which is glued to the foil bag.
  • the foot-side flag is formed by forming a first transverse sealing seam in the boundary region of the first Schauteil Maschinenteil Maschinens and the realized second Anlagenteilrios.
  • the first transverse sealing seam realizes a structural separation of the interior of the bag from that region of the bag called the foot-side flag.
  • a second transverse seal seam extends parallel to the first transverse seal seam, which second transverse seal seam delimits the foot-side tab on the outer edge of the film pouch.
  • This second transverse seam does not necessarily have to run at the outermost edge of the film bag. This is only necessary if there are no gaping foil areas at the outermost edge of the foil bag. If this does not disturb further, the second transverse sealing seam can also be arranged at a distance to the outermost edge of the film bag.
  • the foot-side lug is applied folded over to the second foot portion and the two regions of the sealable layers overlap each other and are sealed together in the region of the overlap.
  • the sealable layers which are initially freely accessible from outside the bag, are placed against each other and then sealed together by suitable sealing tools. This process fixes the foot-side lug folded over in the boundary region of the first foot part region and the second foot part region to the second foot part region.
  • the fixation of the foot-side flag on the second foot portion can be done for example by a punctiform sealing within the freely accessible areas of the sealable layers.
  • the sealing of the two regions of the sealable layers is part of an edge seal, which in the foot region from an outer edge of one of the gussets to a folded cold the foot-side flag, in particular at an angle of eg 45 ° with respect extends to the folding edge, wherein the foot-side flag is folded along the folded edge to the second torqueteil Scheme.
  • This type of seal ultimately leads to a stable bottom area which, in the case of a filled bag, has substantially the width of the side fold and thus gives the entire bag increased stability.
  • the two edge seal seams may leak from the fold line to the end of the first foot portion. However, they may also leak on the left and right sides of the film bag or both on the left and right sides of the film bag and toward the end expire the first askteil Schemees.
  • the edge seal seams then end at or in areas around corners of the foot area.
  • Another aspect of the invention relates to the production of the first transverse seam and the second transverse seam. This can basically be done at different times. However, it has proven to be advantageous if these two transverse sealing seams are produced at the same time, because then preferably a single set of sealing tools - e.g. a pair and another pair) can be used in a single operation.
  • each of the two transverse sealing seams extends over the entire width of the front or rear wall and seals the front and the rear wall partially with each other or the front and the rear wall partially with the interposed closed side gussets with each other. On the one hand, this increases the stability of the foot-side lug and, on the other hand, it ensures the required tightness of the foil bag and avoids a flap-like divergence of the foil elements at the edge region of the lug.
  • the first sealing stage has at least corresponding pairs of sealing tools with which the first or the second transverse sealing seam is produced.
  • the two sealing stages also have the usual control devices for setting and regulating the temperature of the sealing tools and the electromechanical unit for moving the sealing tools.
  • the transfer device may have pairs of grippers, which grip the foot-side flag and move accordingly.
  • it may also have a slotted tube through which the foot-side lug is moved through and folded according to the curvature of the slot along the tube.
  • it can also be formed by plates which have a curvature along their longitudinal extent. Also in this plate-like design, the foot-side lug can be moved along the longitudinal extent of the plates and so folded or folded according to the curvature. Other variants are possible.
  • Such a device may be part of a machine, in which, for example, initially from the film an open at his foot area according to the invention Foil bag is made, which is then sealed according to the invention, that is sealed.
  • a foil pouch 1 according to a first embodiment of the invention, an upwardly projecting and open foot area 8.
  • a head portion 7 of the film bag 1 is not shown. This head area 7 is already assumed to be closed in the present case.
  • the film bag 1 is made of a film 2, whose structure in the Fig. 5 is shown.
  • An Indian Fig. 5 illustrated cross section through the film 2 shows an outer layer 12 and an inner layer 11.
  • the outer layer 12 is not sealable and the inner layer 11 is sealable.
  • the film 2 further has between the outer layer 12 and the inner layer 11 on four intermediate layers 13, on the one hand contribute to stability and on the other hand have a barrier function.
  • the film 2 further has a first opening 16 which extends through the outer layer 12 and the four intermediate layers 13 up to the inner layer 11 and this inner layer 11, however, does not penetrate.
  • the Indian Fig. 4 illustrated film bag 1 has a front wall 3 made with the aid of the film 2, a rear wall 4, a left side fold 5 and a right side fold 6.
  • the first gusset 5 has a first folding edge 20 and the second gusset 6 has a second folding edge 21.
  • the foot region 8 is subdivided into a first foot part region 14 and into a second foot part region 15.
  • first opening 16 is formed in the region of the left gusset 5 in the first rectifteil Siemens 14, as shown in the Fig. 4 is shown.
  • a second opening 17 is formed in the same way as in the Fig. 5
  • At the same height as the first opening 16 and the second opening 17 are mirrored along a longitudinal axis (not shown) of the rear wall 4 two further openings, namely a third opening 18 and a fourth opening 19.
  • the third opening 18th is therefore also within the range of - in the present case - right side gusset 6 and in the first foot portion 14, whereas the fourth opening 19 is located just below the third opening 18 in the second foot portion 15. Also, the third opening 18 and the fourth opening 19 are formed identical to those in the Fig. 5 illustrated first opening 16.
  • the first foot portion 14 and the second foot portion 15 are separated by an imaginary fold line 22.
  • the first opening 16 and the second opening 17 are located at the same distance from the fold line 22.
  • the third opening 18 and the fourth opening 19 are located at the same distance from the fold line 22.
  • the first foot portion 14 is later folded over to the second foot portion 15, wherein the first and second openings 16 and 17 and the third and the fourth opening 18 and 19 are congruent to lie. However, this is discussed later in detail.
  • the two pairs of openings 16 and 17 or 18 and 19 may also have different sized and differently shaped individual opening dimensions, which may facilitate later overlapping positioning.
  • the first sealing zone 23 indicates that region of the foot region 8 in which, at a later time, a first transverse sealing seam 25 (see FIG Fig. 9 ) is produced.
  • the first seal zone 23 is located near the fold line 22 within the first foot portion 14. It is located closer to the fold line 22 than to the first opening 16.
  • the first seal zone 23 extends in a boundary region between the first foot portion 14 and the second foot portion 15.
  • the second seal zone 24 extends between one hand the second edge of the film 2 and on the other hand, the first and the third opening 16 and 18.
  • the second sealing zone 24 shows that area in which at a later time a second transverse sealing seam 27 (see Fig. 9 ) is produced.
  • a cross section through the film 2 according to a second embodiment of the film 2 is shown.
  • a sealable layer is located not only at the position of the inner layer 11 but also between the middle intermediate layers 13.
  • This sealable layer is referred to below as the intermediate inner layer 11A.
  • said openings 16, 17, 18 and 19 extend in the film 2 only to said intermediate inner layer 11A.
  • the film 2 according to the Fig. 6 can be in a manner analogous to the film 2 according to the Fig. 5 for the film bag according to the invention according to the Fig. 4 deploy.
  • the Indian Fig. 4 illustrated film bag 1 further has in the longitudinal direction extending from its foot-side end to its head end a first longitudinal seam 28, a second longitudinal seam 29, a third longitudinal seam 30 and a fourth longitudinal seam 31.
  • the respective longitudinal sealing seams 28, 29, 30 and 31 respectively connect adjacent areas of the front wall 3 with the left gusset 5 and the right gusset 6, as well as adjacent areas of the rear wall 4 with the left gusset 5 and the right gusset 6.
  • With the aid of the longitudinal sealing seams 28 to 31 can be individual film sections, which separately form the respective side of the film bag 1, seal together, so connect. If, however, the foil pouch 1 is made from a continuous single foil strip, as is the case here, initially a tube is formed.
  • the basic structure of the film bag 1 is then a tubular structure which has been produced by corresponding folding of a flat film piece or strip of the film 2, wherein in the present case along z.
  • the fourth longitudinal sealing seam 31 two edge regions of the film strip were sealed using the sealable inner layer 11 together.
  • the longitudinal sealing seams 28 to 31 are then produced and also serve for the stability of the film bag 1.
  • a second embodiment of the film bag 1 in which a third embodiment of the film 2 is used, the fragmentary in the Fig. 8 in the form of a cross section through the first Opening 16 is shown.
  • the first opening 16 extends through the entire film 2-analogously also for the second opening 17, the third opening 18 and the fourth opening 19. So it penetrates not only the outer layer 12, and optionally the intermediate layers 13, but also the inner layer 11 completely. Therefore, also in perspective according to the Fig. 7 through the third opening 18 and the fourth opening 19 through the second folding edge 21 of the right side gusset 6 visible visible, which in contrast to the Fig. 4 highlighted at this point.
  • the inner layer 11 of the film 2 of the front wall 3 can thus be seen through the openings 18 and 19 to the left of the second folded edge 21, and the inner layer 11 of the film 2 of the right side edge 6 can be seen to the right of the second folded edge 21.
  • the inner layer 11 of the film 2 of the left side fold 5 can thus be seen through the first opening 16 or the second opening 17.
  • a foil bag 1 which is open on the foot side is first removed from a stack and positioned on the foot side upwards, and the left and right side folds 5 and 6 are completely opened. Then filling material is filled into the foil bag 1 through the opened foot region 8 until the maximum filling level is reached.
  • the maximum filling level means in this case a filling level below the foot area 8.
  • the right or left side folds 5 and 6 can no longer be closed in the direction of the head area 7 after filling. The situation is different within the foot area 8. In this foot area 8, as is shown roughly schematically in FIG Fig.
  • the thus formed foot-side lug 10 is in a further processing step with a folding tool in the in Fig. 9 Plane shown folded forward, so that in the Fig. 10 shown configuration of the foot area 8 is obtained.
  • the folding of the foot-side lug 10 is such that on the one hand the mutually corresponding openings 16 and 17 and on the other hand, the corresponding openings 18 and 19 are congruent to come to rest. Since the openings are 16-19 only in the rear wall 4 of the film bag 1, these are folded over foot-side flag 10, as in the Fig. 10 is shown, no longer visible and shown only by broken lines.
  • a corner seam 32 or 33 is generated on the left and right sides in the foot region 8 of the film bag 1.
  • a first edge seal 32 extends at an angle of 45 ° with respect to the gusset direction from the left gusset 5 to the fold edge 22.
  • a second gusset seal 33 extends in an analogous manner from the right gusset 6 at an angle of 45 ° towards the fold edge 22.
  • the first and second edge seams 32 and 33 are relatively solid and have at least the width which is necessary, on the one hand, the openings 16 and 17 and, on the other hand, the openings 18 and 19 completely cover up. Accordingly, the shape of the edge sealing seams 32 and 33 can also change in their longitudinal extent, that is, for example, have a smaller width outside the openings 16 and 17 or 18 and 19 to be sealed.
  • the opposing and mutually freely accessible areas of the inner layer 11 within the respective pairs of openings 16 and 17 on the one hand and 18 and 19 on the other hand are sealed together.
  • the foot-side lug 10 is de facto fixed or stabilized on the outside of the foil bag 1 in its foot region 8 and can no longer protrude from the foil bag 1.
  • the edge sealing seams 32 and 33 also cause large area seals from opposite one another Regions of the inner layer 11 of the film 2, whereby a relatively large area stably sealed together with each other zone is formed, which has a positive effect on the standing behavior of the filled with filling film bag 1.
  • they contribute to the formation of a flat foot region 8, when the filling material in the head-side upward orientation of the film bag 1 is displaced down in the film bag 1 as soon as the film bag 1 is turned over after filling.
  • Fig. 11 is the one in the Fig. 10 illustrated situation shown in the sectional plane BB, which runs exactly through the opening 18 and 19 respectively.
  • a detailed description of the layer structure of the film 2 as shown in the Fig. 8 was made, waived. Rather, only an assignment to the film areas of the front wall 3, the rear wall 4, and the right side fold 6 is turned off.
  • the position of the fold edge 22 is also shown with respect to the film section.
  • the folding edge 22 extends in the present case normal to the plane of the drawing.
  • the extreme right position of the layer structure is assigned to the front wall 3. To the left of this, the film layers assigned to the right side fold 6 extend, followed by the film layer assigned to the rear wall 4.
  • the leftmost layer of film of the first foot portion 14 associated layer structure corresponds to the front wall 3 followed by those of the right side gusset 6 associated film layers.
  • the rightmost disposed film layer of the first rectifteil Schemes 14 corresponds to that of the rear wall 4 associated film layer.
  • the film bag 1 is reversed, so that its foot portion 8 is aligned facing down. Due to the weight of the contents, which inflates the secondtician Suite 15, and the folding or sealing of the foot area 8 is formed when stopping the foil bag 1 on the ground ultimately in the Fig. 14 illustrated embodiment of the foot portion 8, which has a substantially flat shape and in particular a snug against the foil bag 1 foot-side lug 10 has.
  • the Fig. 14 For reasons of clarity, only the edges of the two edge sealing seams 32 and 33 are visibly drawn, and attention has been drawn to a representation of longitudinal ridges in the edge sealing seams 32 and 33 which are shown in FIG Fig. 12 clearly shown, omitted.
  • the foil pouch 1 can now be parked upright on its foot area 8 in an upright position or parked in line with other identically designed foil pouches 1.
  • FIGS. 16 to 18 the process of producing the foot-side lug 10, the folding of the foot-side lug 10 on the outside of the foil bag 1 and the fixing of the foot-side lug 10 on the outside of the foil bag 1 in the foot area 8 is shown.
  • an aggregate in the form of a device according to the invention for closing the foil bag 1 is used in a filling and / or closing machine.
  • FIGS. 16 to 18 For reasons of clarity, not all details of the film bag 1 or the film 2 or all sealing seams were drawn, although these exist. Details of the head area 7 were completely ignored.
  • a flat layer structure consisting of front and rear walls 3 and 4 and inserted therebetween closed gussets 5 and 6 respectively.
  • the means may be grasping forceps, which compress the walls 3, 4, 5 and 6 of the foil bag 1 in the desired area.
  • the flat layer structure is in the present case in an already filled foil pouch. 1 mainly generated in the foot 8. However, it may extend in an unfilled, so empty foil bag 1 over its entire length.
  • the means are essentially formed by a movement device which moves the layer structure, which is already lying flat against one another, towards its next processing station or positions it accordingly.
  • first sealing step 34 (indicated only schematically).
  • first sealing step 34 only the pairs of first sealing tools 35A and 35B and second sealing tools 36A and 36B used to form the two transverse sealing seams 25 and 27 are illustrated.
  • the pairs of sealing tools 35A and 35B and 36A and 36B are bar-shaped and are moved relative to each other according to the first arrows P1 to produce the two transverse sealing seams 25 and 27. This produces said foot-side lug 10.
  • the foot region 8 is folded along the fold line 2 or the previously generated foot-side lug 10 by means of a Umlegvorraum 37 (only schematically indicated) to the second foot portion 15 folded.
  • a Umlegvorraum 37 (only schematically indicated) to the second foot portion 15 folded. This takes place in such a way that the first opening 16 with the second opening 17 or the third opening 18 with the fourth opening 19 comes to lie congruently or at least overlapping.
  • the transfer device 37 has pairs of gripping tongs (not shown), which grip the foot-side lug 10 and move according to the direction or movement indicated by second arrows P2.
  • a fourth step the respective regions of the sealable layer 11 which are accessible through the openings and sealed to one another are sealed with a second sealing step 38.
  • a second sealing step 38 Of the second sealing stage, only pairs of third sealing tools 39A and 39B and fourth sealing tools 40A and 40B are shown.
  • the pairs of sealing tools 39A and 39B and 40A and 40B are bar-shaped and are moved relative to each other according to the third arrows P3 to produce the two edge sealing seams 32 and 33 in the foot region 8.
  • the heat sealing takes place via the sealing tools 35A to 36B or 39A to 40B.
  • FIG. 15 another embodiment of a film bag 1 according to the invention is shown, wherein in the present case in the region of the left and right gussets 5 and 6, the rear wall 4 each have a contiguous opening (combination / fusion of designated by the reference numerals 16 and 17 and 18 and 19 areas / Openings), each extending over the first sealing zone 23 and over the folding edge 22 away.
  • the closing of the film bag 1 is carried out in a similar manner as discussed above.
  • openings 16, 17, 18 and 19 have always been shown in the rear wall 4, it should be mentioned at this point that these openings 16, 17, 18 and 19 may also be formed on the front wall 3.
  • the folding over of the foot-side lug 10 then takes place in the direction of the front wall 3, on which the foot-side lug 10 is finally fixed as discussed above.
  • FIG. 19 a head portion 7 of a film bag 1 according to the invention is shown, which is closed with a marginal head seam 41 which overlaps with the longitudinal sealing seams 28 to 31, and with a functioning as a re-closure under the top seal 41 localized (partially hidden) Top-Slider, hereinafter Slider briefly 42 called, is equipped.
  • the slider 42 has a pair of interlocking closure elements 43 and a tab 44, with the help of which the closure elements 43 open at a movement of the rider 44 to the right and close at a movement of the rider 44 to the left.
  • the slider 42 also has a first web 45 and a second web 46, wherein each of the two webs 45 and 46 carries one of said closure elements 43.
  • the first bridge 45 is in the perspective of FIG. 19 located congruently in front of the second bridge 46 and covers it optically.
  • Each of the two closure elements 43 is connected via its associated connection strip 43A with its associated web 45 and 46, respectively.
  • Each connecting strip 43A and its associated webs are made in one piece.
  • the two closure elements 43 are at their right and welded together at their left edge.
  • the webs 45 and 46 together with the closure elements 43 and the connection strip 43A form a zipper.
  • the lower ends of the two webs 45 and 46 are connected together in the slider 42.
  • the slider 42 further includes a carrier sheet 52.
  • the rear (second) web 46 is sealed to a carrier sheet 52.
  • the slider 42 is inserted on the left side between the left gusset 5 and the front wall 3 and the right side between the right gusset 6 and the front wall 3.
  • the first web 45 is sealed with the inner layer 11 of the front wall 3.
  • the second web 46 is sealed via the carrier sheet 52 with the inner layer 11 of the one half of the right or left side fold 5 or 6 pointing to it.
  • both the inner layer 11 of the other half of the left side gussets 5 and the inner layer 11 of the other half of the right gusset 6 are sealed with the inner layer 11 of the rear wall 4.
  • Left and right sides of the two webs 45 and 46, the side folds 5 and 6 are hermetically sealed by further sealing zones (not shown in detail).
  • the webs 45 and 46 extend between the front and rear walls 3 and 4, respectively.
  • the first web 45 is connected to the inner layer 11 of the front wall 3 and the second web 46 is therebetween lying support sheet 52 with the inner layer 11 of the rear wall 4 sealed.
  • the two webs 45 and 46 are not sealed together and define a discharge opening between them as soon as their original connection between them has been broken for the first time.
  • An opening width of the discharge opening is determined by the position of the rider 44.
  • the two gussets 5 and 6 extend to the upper edge of the film bag 1, the two gussets 5 and 6 are bounded below the two webs 45 and 46 by a delimiting seam 47A and 47B, respectively.
  • This boundary sealing seam 47A or 47B runs in regions parallel to the webs 45 and 46 and overlaps there slightly with them and extends obliquely below from the respective folding edge 20 or 21 away towards an outer edge of the respective gussets 5 and 6 oriented down to the foot area 8.
  • the limit sealing seams 47A and 48B are both between the front wall 3 and its facing part of the respective gussets 5 and 6 (front delimiting seam) and between the rear wall 4 and its facing part of the respective gussets 5 and 6 (FIG.
  • the oblique formation of the boundary sealing seam 47A or 47B prevents a jam of whatsoever.
  • the front left boundary seam 47A begins and ends at the first longitudinal seam 28 and at the fourth longitudinal seam 31, respectively, or overlaps at its both ends with the first longitudinal seam 28 and the fourth longitudinal seam 31, respectively.
  • Right boundary seam 47B begins and ends at the second longitudinal seam 29 and at the third longitudinal seam 30 or overlaps at its two ends with the second longitudinal seam 29 and the third longitudinal seam 30, respectively.
  • a tear-off perforation 48 extending over the entire width of the film bag 1 is integrated into the film 2, which extends into the carrier sheet 52.
  • the tear-off perforation 48 extends over the entire circumference of the film bag 1. It allows a tearing of the limited by them outer region of the film bag 1 of the located thereunder region of the film bag 1.
  • the carrier sheet 52 is between the tear-off perforation 48 and the head seam 41 with the inner layer 11 of the front wall 3 sealed.
  • the front wall 3 has a material recess 49 (opening) in the form of a parallelogram, which facilitates access to the rider 44. Subsequent to the bottom right corner of the material recess 49 extends a tab perforation 50 which extends parallel to the closure elements 43 to the right end of the closure elements 43 and from there up to the tear perforation 48, where it ends.
  • the tab perforation 50 defines - starting at the right side of the material recess 49 - together with the tear-off perforation 48 a tab 51, which alone or together with the above the tear-off perforation 48 localized region of the foil bag 1 torn away from the foil bag 1 can be used to operate the tab 44 easier and to make the closure elements 43 and the discharge opening exposed by them in the open state.
  • the orientation of the parallelogram of the material recess 49 is chosen so that it has an acute angle at the left beginning of the tab perforation 50, which promotes the tearing of the film 2 along the tab perforation 50 and breaking out of the tear in a zone of the Beschigelung of the first web 45 with prevents the front wall 3.
  • the extension of the tear-off perforation 48 is limited only to the upper edge of the flap 51. In this case, it serves only to limit the tab 51 and the upper portion of the film bag 1 can not be torn off from the underlying area. Thus, only the tab 51 can be torn out of the front wall 3.
  • the perforations 48 and 50 can be implemented in a variety of ways, such as by a cutting process, an embossing process or by laser light, etc.
  • the foil pouch 1 is already sealed according to the invention before its filling by the open head region 7 and subsequent sealing of the head region 7 according to the invention, which has already been discussed in detail above, so that reference will be made only to this point.
  • FIG. 20 a complete view of the film bag 1 is shown, in which both the head portion 7, so also the foot area 8 and a handle 53 integrated in the left gusset 6 is shown.
  • the handle 53 is made of a single strip of material.
  • the handle 53 has a central grip part 55 for gripping.
  • the handle 53 further has a first fastening part 54A and a second fastening part 54B, which are both adhesively bonded to the film 2 of the film bag 1 with the aid of an adhesive.
  • the handle 53 is arranged centrally in the left gusset 6 with respect to the depth T of the gusset 5 (or 6).
  • the handle 53 is further arranged also in the direction of the height / length H of the side fold 5 (or 6) with respect to the Greraumbone FL centric. These in relation to the actual filling center coordinated central position of the handle 53 above the actual center of gravity dominated by the contents prevented at original (full / full) load and correspondingly large length of the film bag that the foil bag when carrying with the handle 53 unintentionally tilts forward or backward.
  • the head-side end In analogy to the foot-side end 8, the head-side end, that is to say the head region 7, is also divided into a first head part region 56 and a second head part region 57.
  • the first head part region 56 forms a head-side lug 58 which has been produced by sealing the insides of the film 2 .
  • Clearly visible in the area of the head-side lug 58 is a part of the partially hidden slider 42, which is integrated in the head area 7 in the head-side lug 58. Of the partially hidden slider adjacent to the rider 44 only short sections of the closure elements 43 and the rider 44 itself can be seen through the material recess 49 therethrough.
  • the head-side flag 58 Starting from the first head portion 56 (ie the head-side flag 58, opens inside the second head portion 57 of the interior of the film bag 1 relatively quickly towards the two walls 3 and 4, which in a bulging film bag 1 ultimately at about the distance of the depth T of the gussets 5 and 6 spaced from each other (ie arranged in decency of each other) are.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Claims (19)

  1. Sachet en film (1),
    - qui est fabriqué dans un film (2), le film (2) comportant sur sa première face une couche non scellable et la couche non scellable formant une couche extérieure (12) du sachet en film (1) et le film (2) comportant au voisinage de la couche extérieure (12) une couche scellable (11 ; 11A) et le sachet en film (1)
    - comportant une paroi avant et arrière (3, 4) et des plis latéraux droit et gauche (5, 6) insérés entre la paroi avant et arrière (3, 4), et
    - comportant dans une première partie d'extrémité ouverte, appelée zone basse (8), une première zone basse partielle (14) pour former un talon (10) côté bas et une deuxième zone basse partielle (15) adjacente à cette dernière, caractérisé en ce que dans la zone basse (8), à l'intérieur de la zone d'au moins l'un des plis latéraux (5, 6), la paroi avant ou arrière (3, 4) comporte aussi bien dans la première zone basse partielle (14) que dans la deuxième zone basse partielle (15) un orifice (16, 17, 18, 19) dans au moins la couche extérieure (12), à travers lequel orifice (16, 17, 18, 19) ,la couche scellable (11 ; 11A) est accessible à partir de l'extérieur du sachet en film (1) et la position des orifices (16, 17, 18, 19) est choisie de telle sorte, que lorsque le talon (10) côté bas est créé et replié sur la deuxième zone basse partielle (15), deux zones de la couche scellable (11 ; 11A) accessible à partir de l'extérieur du sachet en film (1) viennent se chevaucher, et
    - comportant dans une deuxième zone d'extrémité appelée zone haute (7), une refermeture (42) en partie cachée.
  2. Sachet en film (1) selon la revendication 1, la couche scellable formant une couche interne (11) du sachet en film (1) et l'orifice (16, 17, 18, 19) traversant le film (2).
  3. Sachet en film (1) selon la revendication 1 ou la revendication 2, l'orifice (16, 17, 18, 19) conçu dans la première zone basse partielle (14) ainsi que dans la deuxième zone basse partielle (15) étant un orifice cohérent, qui s'étend le long de la direction longitudinale du pli latéral (5, 6), en partant d'une zone limite des deux zones basses partielles (14, 15) dans les deux zones basses partielles (14, 15).
  4. Sachet en film (1) selon la revendication 1 ou la revendication 2, l'orifice conçu dans la première zone basse partielle (14) ainsi que dans la deuxième zone basse partielle (15) étant réalisé par aux moins deux orifices (16, 17, 18, 19) localisés séparément le long de la direction longitudinale du pli latéral (5, 6), avec un écart l'un par rapport à l'autre.
  5. Sachet en film (1) selon l'une quelconque des revendications 1 à 4, l'orifice (16, 17, 18, 19) conçu dans la première zone basse partielle (14) ainsi que dans la deuxième zone basse partielle (15) étant conçu aussi bien à l'intérieur de la zone du pli latéral (5, 6) de droite que de celui de gauche.
  6. Sachet en film (1) selon l'une quelconque des revendications 1 à 5, la deuxième partie d'extrémité appelée zone haute (7) étant fermée et une intégration de la refermeture (42) dans un talon (58) côté haut étant obtenue par scellement de la refermeture (42) avec une couche scellable (11) interne du film (2).
  7. Sachet en film (1) selon l'une quelconque des revendications 1 à 6, la refermeture (42) étant conçue par une glissière comportant un zip et un curseur (44) coopérant avec le zip pour l'ouverture et la fermeture de l'élément de fermeture (43) du zip, le curseur (44) devant être déplacé de sa position initiale pour ouvrir les éléments de fermeture (43) et la paroi avant ou arrière (3, 4) comportant un évidement de matière (49) qui est localisé en position initiale du curseur (44).
  8. Sachet en film (1) selon la revendication 7, les éléments de fermeture (43) étant recouverts d'une patte (51) adjacente à l'évidement de matière (49) qui est délimitée au moins en partie par une perforation de patte (50).
  9. Sachet en film (1) selon l'une quelconque des revendications 1 à 8, après son remplissage avec du produit de remplissage, le talon côté bas (10) étant réalisé par formation d'un premier joint de scellement (25) transversal dans la zone limite de la première zone basse partielle (14) et de la deuxième zone basse partielle (15).
  10. Sachet en film (1) selon la revendication 9, un deuxième joint de scellement (27) transversal délimitant à la parallèle du premier joint de scellement (25) transversal le talon (10) côté bas sur le bord extérieur du sachet en film (1).
  11. Sachet en film (1) selon la revendication 9 ou la revendication 10, le talon (10) côté bas étant appuyé en étant replié sur la deuxième zone basse partielle (15) et les deux zones des couches scellables (11 ; 11A) se chevauchant et étant scellées l'une à l'autre dans la zone du chevauchement.
  12. Sachet en film (1) selon la revendication 11, le scellement des deux zones des couches scellables (11 ; 11A) étant une partie d'un joint de scellement des arêtes (32, 33) qui dans la zone basse (8) s'étend d'une arête extérieure de l'un des plis latéraux (5, 6) vers une arête de pliage (22), notamment sous un angle de 45° par rapport à l'arête de pliage (22), le talon côté bas (10) étant replié le long de l'arête de pliage (22) sur la deuxième zone basse partielle (15).
  13. Procédé pour fermer un sachet en film (1) selon l'une quelconque des revendications 1 à 8, le sachet en film (1) étant fabriqué dans un film (2), le film (2) comportant sur sa première face une couche non scellable et la couche non scellable formant une couche extérieure (12) du sachet en film (1) et le film (2) comportant dans le voisinage de la couche extérieure (12) une couche scellable (11 ; 11A) et le sachet en film (1)
    - comportant une paroi avant et arrière (3, 4) et des plis latéraux gauche et droit (5, 6) insérés entre la paroi avant et arrière (3, 4) et
    - comportant dans une première partie d'extrémité ouverte, appelée zone basse (8), une première zone basse partielle (14) pour former un talon (10) côté bas et une deuxième zone basse partielle (15) adjacente à cette dernière, dans la zone basse (8), à l'intérieur de la zone d'au moins l'un des plis latéraux (5,6), la paroi avant ou arrière (3, 4) comportant aussi bien dans la première zone basse partielle (14) que dans la deuxième zone basse partielle (15) un orifice (16, 17, 18, 19) dans au moins la couche extérieure (12), à travers lequel orifice (16, 17, 18, 19), la couche scellable (11 ; 11A) est accessible à partir de l'extérieur du sachet en film (1) et la position des orifices (16, 17, 18, 19) étant choisie de telle sorte, que lorsque le talon (10) côté bas est créé et replié sur la deuxième zone basse partielle (15), deux zones de la couche scellable (11 ; 11A) accessible à partir de l'extérieur du sachet en film (1) viennent se chevaucher, et
    - comportant dans une deuxième zone d'extrémité appelée zone haute (7), une refermeture (42) en partie cachée,
    le procédé comportant les étapes suivantes, à savoir :
    - réalisation du talon (10) côté bas par création d'un premier joint de scellement (25) transversal, dans la zone limite de la première zone basse partielle (14) et de la deuxième zone basse partielle (15) et
    - repliage du talon (10) côté bas sur la deuxième zone basse partielle (15) de telle sorte que deux zones des couches scellables (11 ; 11A) se chevauchent et
    - scellement des deux zones des couches scellables (11; 11A) l'une sur l'autre dans la zone des chevauchements.
  14. Procédé selon la revendication 13, avant le repliage du talon (10) côté bas, un deuxième joint de scellement (27) transversal qui délimite le talon (10) côté bas sur le bord extérieur du sachet en film (1) étant créé à la parallèle du premier joint de scellement (25) transversal.
  15. Procédé selon l'une quelconque des revendications 13 ou 14, la création du premier joint de scellement (25) transversal et du deuxième joint de scellement (27) transversal s'effectuant simultanément et chacun des deux joints de scellement (25, 27) transversaux scellant sur toute la largeur de la paroi avant ou arrière (3, 4) la paroi avant et la paroi arrière (3, 4) l'une à l'autre par endroits ou scellant la paroi avant et la paroi arrière (3, 4) l'une à l'autre par endroits, avec les plis latéraux (5, 6) fermés, rabattus entre elles.
  16. Procédé selon l'une quelconque des revendications 13 à 15, le scellement des deux zones des couches scellables s'effectuant au cours de la création d'un joint de scellement d'arête (32, 33) qui s'étend dans la zone basse (8) d'une arête extérieure de l'un des plis latéraux (5, 6) vers une arête de pliage (22) entre la première zone basse partielle (14) et la deuxième zone basse partielle (15), notamment sous un angle de 45° par rapport à l'arête de pliage (22), le talon (10) côté bas étant replié le long de l'arête de pliage (22) sur la deuxième zone basse partielle (15).
  17. Dispositif pour fermer un sachet en film (1) selon l'une quelconque des revendications 1 à 8, le sachet en film (1) étant fabriqué dans un film (2), le film (2) comportant sur sa première face une couche non scellable et la couche non scellable formant une couche extérieure (12) du sachet en film (1) et le film (2) comportant dans le voisinage de la couche extérieure (12) une couche scellable (11 ; 11A) et le sachet en film (1)
    - comportant une paroi avant et arrière (3, 4) et des plis latéraux droit et gauche (5, 6) insérés entre la paroi avant et arrière (3, 4), et
    - comportant dans une première partie d'extrémité ouverte, appelée zone basse (8),une première zone basse partielle (14) pour former un talon (10) côté bas et une deuxième zone basse partielle (15) adjacente à cette dernière, dans la zone basse (8), à l'intérieur de la zone d'au moins l'un des plis latéraux (5,6), la paroi avant ou arrière (3, 4) comportant aussi bien dans la première zone basse partielle (14) que dans la deuxième zone basse partielle (15) un orifice (16, 17, 18, 19) dans au moins la couche extérieure (12), à travers lequel orifice (16, 17, 18, 19), la couche scellable (11 ; 11A) est accessible à partir de l'extérieur du sachet en film (1) et la position des orifices (16, 17, 18, 19) étant choisie de telle sorte, que lorsque le talon (10) côté bas est créé et replié sur la deuxième zone basse partielle (15), deux zones de la couche scellable (11 ; 11A) accessible à partir de l'extérieur du sachet en film (1) viennent se chevaucher, et
    - comportant dans une deuxième zone d'extrémité appelée zone haute (7), une refermeture (42) en partie cachée,
    le dispositif (1) comportant :
    - une première étape de scellement (34) pour la création d'un premier joint de scellement (25) transversal, dans la zone limite de la première zone basse partielle (14) et de la deuxième zone basse partielle (15) et
    - un dispositif de pliage pour replier le talon (10) côté bas sur la deuxième zone basse partielle (15), de telle sorte que deux zones des couches scellables (11 ; 11A) accessibles à travers des orifices se chevauchent et
    - une deuxième étape de scellement (38) pour sceller l'une sur l'autre les deux zones des couches scellables (11 ; 11A) dans la zone de chevauchement.
  18. Machine de remplissage et/ou de fermeture qui comporte un dispositif selon la revendication 17.
  19. Sachet en film (1) selon l'une quelconque des revendications 1 à 12, qui dans au moins l'un de ses plis latéraux (5, 6) comporte une poignée (53) centrée par rapport à une longueur d'espace de remplissage (FL) et centrée par rapport à une profondeur (T) du pli latéral (5, 6).
EP10172241.1A 2010-08-06 2010-08-06 Sachet plastique doté d'une fermeture refermable côté tête Not-in-force EP2415685B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10172241.1A EP2415685B1 (fr) 2010-08-06 2010-08-06 Sachet plastique doté d'une fermeture refermable côté tête

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10172241.1A EP2415685B1 (fr) 2010-08-06 2010-08-06 Sachet plastique doté d'une fermeture refermable côté tête

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EP2415685A1 EP2415685A1 (fr) 2012-02-08
EP2415685B1 true EP2415685B1 (fr) 2013-04-17

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Application Number Title Priority Date Filing Date
EP10172241.1A Not-in-force EP2415685B1 (fr) 2010-08-06 2010-08-06 Sachet plastique doté d'une fermeture refermable côté tête

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB689727A (en) * 1951-11-14 1953-04-01 Arthur William Richens Bags and methods of making them
US3916770A (en) * 1973-07-03 1975-11-04 Violet M Hanson Method of making a flat bottom bag
DE3926728A1 (de) * 1989-08-12 1991-02-21 Kodron Rudolf S Dipl Ing Verpackungsbeutel fuer feste, rieselfaehige oder fluessige fuellgueter
US7415810B2 (en) 2004-09-22 2008-08-26 Illinois Tool Works Inc. Methods of manufacturing hooded slider-operated zippered bags
WO2010003233A1 (fr) * 2008-07-09 2010-01-14 Martin Woodhouse Emballage à soufflets latéraux refermable
DE202009012135U1 (de) * 2009-09-07 2009-11-19 Mondi Ag Auf Papier basierter Beutel mit integriertem Griff

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