EP3023350B1 - Sac à fermeture à glissière avant doté d'une poignée découpée et flan pour sa formation - Google Patents

Sac à fermeture à glissière avant doté d'une poignée découpée et flan pour sa formation Download PDF

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Publication number
EP3023350B1
EP3023350B1 EP14194358.9A EP14194358A EP3023350B1 EP 3023350 B1 EP3023350 B1 EP 3023350B1 EP 14194358 A EP14194358 A EP 14194358A EP 3023350 B1 EP3023350 B1 EP 3023350B1
Authority
EP
European Patent Office
Prior art keywords
bag
reclosure
film
front walls
side folds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14194358.9A
Other languages
German (de)
English (en)
Other versions
EP3023350A1 (fr
Inventor
Christian Nardmann
Stephan Dromowicz
Darius Maseiker
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 PT14194358T priority Critical patent/PT3023350T/pt
Priority to EP14194358.9A priority patent/EP3023350B1/fr
Priority to ES14194358T priority patent/ES2733510T3/es
Publication of EP3023350A1 publication Critical patent/EP3023350A1/fr
Application granted granted Critical
Publication of EP3023350B1 publication Critical patent/EP3023350B1/fr
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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/08—Hand holes
    • 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
    • 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
    • B65D33/2575—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 the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer
    • B65D33/2583—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 the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer the slide fastener being attached to one wall only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0012—Flexible containers made from webs by folding webs longitudinally having their openings facing in the direction of movement
    • 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
    • B31B2170/30—Construction of flexible containers having corrugated or pleated walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • B31B70/8131—Making bags having interengaging closure elements
    • B31B70/8133—Applying the closure elements in the cross direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/872—Forming integral handles on bags

Definitions

  • the invention relates to a foil bag according to the preamble of claim 1.
  • the invention further provides a flattened unfilled foil bag blank, from which the aforementioned foil bag can be formed.
  • gusseted bags can also be distinguished with regard to their manufacturing process.
  • gusseted bags can be made in succession by folding and heat sealing from a continuous material web, so that then the production direction of the bag corresponds to the course of the gussets and thus a bag longitudinal direction.
  • Such a manufacturing process is also referred to as a "longitudinal process”. Since only one material web for the front walls and the side gussets is supplied and formed by suitable folding devices to form a gusseted tube, results in a relatively simple process control.
  • the arrangement of functional elements such as reclosures, handles or the like is complicated and limited by the manufacturing method to certain embodiments.
  • a carrying handle In film bags with a comparatively large volume and / or a large filling weight, the formation of a carrying handle is advantageous in order to be able to handle the foil bag easily.
  • the EP 2 148 820 B1 It is proposed to arrange a carrying handle opposite the reclosure on the other side fold in a film bag with gussets and a reclosure on one of the gussets.
  • the film bag described is characterized in that with the handle and the opposite reclosure, the contents, such as pelleted pet food, cat litter, powdery or granular construction products, pourable food or the like can be easily distributed in subsets, with a certain portioning is possible.
  • the attachment of the carrying handle is associated with an increased manufacturing effort, which usually also an additional film strip or a prefabricated handle assembly are supplied.
  • the removal opening formed by the reclosure is not large enough to easily engage with the hand or with a scoop in the foil bag can.
  • EP 2 284 091 B1 A foil bag with the features described above is made EP 2 284 091 B1 known.
  • a reclosure with mutually latching Wiederver gleichstMail is provided in a film bag with two front walls and interposed gussets on a head portion, the reclosure strips each have a terminal lug and a locking bar and wherein the locking bar of a Sliders are overlapped for connecting and disconnecting. It results in the function of the manner of a zipper, the slider is called due to its arrangement as a rider.
  • the reclosure strips are arranged with the slider at a distance from an upper edge of the bag, wherein the reclosure is disposed protected against first opening within the film bag between the two front walls, so that damage or inadvertent operation of the reclosure before can be avoided by a user for the first time.
  • the user also recognizes that the bag has not yet been opened without authorization prior to first use, so that the construction described also has the function of a closure seal.
  • the gussets are shortened at the height of the reclosure and are also covered and closed by one of the terminal lugs. At the edges of the terminal lug, however, a step is created by the thickness of the terminal lug, so that in a heat sealing a careful process control is necessary to achieve a reliable seal.
  • the two front walls In the head section above the reclosure, the two front walls abut each other over the entire width of the film bag, where a carrying handle is punched between two transverse sealing seams. This results in the advantage that no separate film strips or prefabricated handle constructions must be supplied for the design of the carrying handle.
  • US 5 722 773 A and EP 2 113 470 B1 known wherein a web of a bag film is folded at the upper edge and then gussets are formed, the two adjoining the front walls wings are not connected by a crease line, but a heat seal seam.
  • the known foil pouches are usually formed from a comparatively thin foil and can be used for receiving light products such as baby diapers or rolls of tissue paper.
  • the present invention has for its object to provide a film bag with gussets and a reclosure, which has improved functional properties at low material costs.
  • the object of the invention and solution of the problem are a film bag according to claim 1 and a flattened, unfilled foil bag blank according to claim 6.
  • the production is carried out by a longitudinal process, wherein initially flattened, unfilled foil bag blanks are prepared, which are then to be filled later.
  • the front walls on the one hand and the side folds on the other hand extend together from the bottom of the bag to an upper edge of the bag along the entire length of the bag longitudinal edge and that the reclosure with two terminal lugs of the reclosure strip attached to the first front wall and accessible through a window formed in the first front wall removal area.
  • the reclosure on the inside of the film bag is arranged on the first front wall, the side folds continuing behind the reclosure up to an upper edge of the bag.
  • a costly shortening of the gussets in the production of the foil bag is not necessary, the foil bag can be lifted and worn even after a first-time opening without any impairment to the carrying handle.
  • the force to be carried thereby is distributed not only on the second front wall, but also on the gussets, wherein according to the invention the removal area on the first front wall is window-shaped and thus ends at a distance to the bag longitudinal edges, so that even the first front wall in the bag longitudinal edges is consistent.
  • foil bag according to a preferred embodiment of the invention with longitudinal sealing seams at the bag longitudinal edges, they can be pulled through on both front walls over the entire length of the front walls or gussets, so as to give a high stability and a pleasing appearance of the film bag.
  • the reclosing ends at a small distance from the bag longitudinal edges, wherein the distance may be, for example, between 10 mm and 45 mm, in particular between 15 mm and 35 mm.
  • the distance is expediently chosen so that no reefing results from the re-closure at the bag longitudinal edges, even if longitudinal sealing seams are provided there.
  • the reclosure extends over the greater part of the width of the first front wall, so that a large removal opening is formed.
  • the removal region can be formed by punching out a section of the first front wall, so that then the reclosure with the slider over its entire length is directly freely accessible.
  • the front wall must first be torn open before first opening.
  • a weakening line can be provided for the formation of the removal region.
  • a strip of the front wall over the reclosure is provided with a perforation, so that this strip can then be demolished when opened for the first time.
  • the terminal lugs of the reclosure strips may initially be tightly interconnected, in which case the terminal lugs are to be separated from each other for the first time.
  • a comparatively simply manufactured bag is provided, which, however, is distinguished by particularly good production and service properties.
  • the gussets do not have to be shortened during manufacture, the carrying handle being formed by a simple stamping or a different type of material separation in the front walls.
  • the reclosure fastened to the first front wall with both connection lugs is particularly easy to operate, with a conventional arrangement of the reclosure directly below a head portion, the first front wall at a full filling obliquely or even almost straight, so that then arranged on the first front wall Reclosure points after a first opening exactly in the direction of the contents, so that then the contents can be easily exhausted by the comparatively large removal opening.
  • pelleted animal feed can be easily taken with a measuring cup to allow optimal, individual feeding of a pet.
  • the film bag is produced in a longitudinal process, wherein on a bag bottom, ie on the underside of the film bag, a bottom seam between the front walls inserted wings of the side folds with one of the front walls and between the side folds the two front walls directly to each other combines.
  • the bottom seam lays laterally, wherein the bottom seam can be folded together with an adjacent portion of the front walls and gussets to improve the stability. In all cases, however, remains a certain asymmetry on the underside of the foil bag, so that this tends to tilt in the direction of one of the two front walls.
  • the invention provides that the ratio of the stand height measured in the bag longitudinal direction to the depth determined by the side folds is less than 3: 1, in particular less than 2.5: 1 is.
  • a relatively broad and in the direction of the tensioned side folds deep foil bag is thus provided with a low standing height.
  • the result is the structure, which corresponds to the shape of a low Carrying bag reminds.
  • the ratio of the width measured between the gussets on the front panels to the stand height is between 1.5: 1 and 1: 1.5.
  • the ratio is a length of the head portion along the bag longitudinal direction to the height of the filling space less than 1: 3.
  • a shortest possible length of the head portion is also for practical reasons of advantage. Since the head portion is provided with the carrying handle, this stands upwards so that the foil bag can be easily lifted by a user on the carrying handle. The head section is therefore a dead space with respect to the storage of the film bag, which is why the head section is to be kept as small as possible.
  • the height of the head section is typically between 45 mm and 100 mm, in particular between 55 mm and 80 mm, up to an upper edge of the bag.
  • the front panels and side gussets of the invention are formed by folding and heat sealing from a portion of a bag film.
  • the bag film is multilayered, the bag film having on a bag inside a heat-sealable layer based on polyolefin and on a bag outside of an outer layer.
  • the sealing layer is expediently heat-sealable in order to close the film bag on the circumferential side, to be able to form longitudinal and transverse sealing seams and also to be able to fasten further devices such as the resealing by heat sealing.
  • PE polyethylene
  • PP polypropylene
  • polyolefin copolymers also include various biodegradable plastics such as polylactic acid (PLA), polybutylene adipate terephthalate (PBAT) and polybutylene succinate (PBS).
  • the outer layer is less heat sealable compared to the sealing layer, for which the outer layer may have a higher melting or softening temperature. In the case of a heat-sealing of the bag film, it is then achieved that, although the sealing layer is melted through the outer layer, if appropriate, without the outer layer being excessively deformed or losing its structure.
  • the outer layer may in particular be formed from polyester, in particular polyethylene terephthalate (PET), such an outer layer usually being oriented.
  • PET polyethylene terephthalate
  • Other suitable materials for the outer layer are, for example, polyamide, polypropylene or polylactic acid, wherein these materials also preferably have an orientation caused by a stretching, which leads to a reduction in the tendency to fusion in a heat-sealed.
  • the multilayer bag film is preferably laminated by adhesive.
  • a barrier may be provided, for example, a film layer of ethylene-vinyl alcohol copolymer (EVOH), a thin metal foil or a metallized film layer.
  • EVOH ethylene-vinyl alcohol copolymer
  • the thickness of the front walls and the side folds is usually between 60 .mu.m and 200 .mu.m, preferably between 70 .mu.m and 170 .mu.m, which corresponds to the thickness of the bag film when the film bag is produced by folding and heat sealing.
  • a bag film can be provided which has an outer layer of PET, a metallized intermediate layer of PET and a sealing layer of PE.
  • the thickness of the two PET layers may, for example, be 12 .mu.m and the thickness of the sealing layer 140 .mu.m.
  • all three layers can be formed as a single film and connected by a laminating adhesive.
  • the filling space preferably has a volume of between 4 l and 20 l, in which case the filling weight depends on the density of the filling material.
  • the fill weight can be between 2.5 kg and 10 kg.
  • the foil bag according to a preferred embodiment of the invention based on the depth determined by the gussets compared to known, generic foil bags with a handle on a head portion on a comparatively low height, which is also accepted that in the production In a longitudinal process, a relatively wide film web is supplied.
  • the foil pouch is thus suitable, for example when used for animal feed, for a medium pouch size and an average filling weight.
  • the reclosure is attached to the first front wall and also spaced from the bag longitudinal edges.
  • the reclosure is fastened to the first front wall by a heat-sealed seam which is closed in a frame-shaped manner and spaced apart from the longitudinal edges of the bag.
  • the frame-shaped closed heat seal seam ensures reliable sealing of the reclosure as well to the sides, where then the reclosure on the first front wall is a functionally and spatially delimited unit.
  • the terminal lug of the one re-closure strip below the removal area and the connection lug of the other re-closure strip are fastened directly or via a separate foil section above the removal area.
  • the connection lug or the foil section extends above the removal region to the connecting seam which separates the head section from the filling space.
  • the reclosure is arranged as far up as possible, whereby a particularly good handling when removing the filling material is achieved. If the connecting lug or the foil section extends above the removal region up to the connecting seam, the lug or the foil section there can also be sealed into the connecting seam, resulting in an additional, particularly reliable fixation.
  • the front walls on the one hand and the side folds on the other hand extend together from the bottom of the bag to an upper edge of the bag along the entire bag longitudinal edges.
  • bag corners are separated at the head area at the level of the carrying handle.
  • the bag corners may be separated along an oblique line, or preferably along an S-shape.
  • the wings are connected to each other there.
  • a multilayer bag film is used with a non-heat-sealable or poorly heat-sealable outer layer, a connection of the wings can not be done without further measures by a heat seal.
  • a simple glue point can be provided to connect the wings together.
  • openings or punched holes are formed, in which case the two front walls are connected by the punched holes in a heat-sealing together, whereby the respective side gusset is fixed accordingly.
  • the head portion has the filling seam delimiting seam as part of a frame-shaped seal, in which case the material separation is arranged to form the carrying handle within this frame-shaped seal.
  • the invention also relates to a flattened, unfilled bag blank, from which in particular the previously described filled and closed foil bag can be formed.
  • the flattened, unfilled foil pouch blank has a first front wall, a second front wall, two side folds, a reclosure, a tube section formed by the front walls and the side folds for receiving a filling material, a head section separated from the tube section by a connecting seam and one at the head section a transection of the front walls formed handle.
  • the side gussets each have two wings adjoining one another by a crease line running in the longitudinal direction of the bag. The gussets are thus each off formed a continuous, continuous film section, which is provided centrally with the bending line.
  • the wings connect at Beutell bugsskanten each to one of the front walls, the reclosure with each other latching Wiederver gleichstMail with terminal lugs and locking strips on which a slider for connecting and disconnecting the locking strips is arranged and wherein the reclosure is attached via the terminal lugs on an inner side of the hose section ,
  • a lower edge of the bag opposite the head section is unlocked in the unfilled foil bag blank, wherein a filling opening is formed between the front walls and the side folds at the lower edge of the bag.
  • the front walls, on the one hand, and the gussets, on the other hand, extend together from the lower edge of the bag to an upper edge of the bag along the entire length of the bag.
  • the reclosure is attached to both terminal lugs of the reclosure strip on the first front wall and accessible through a window in the first front wall removal area that does not extend to the bag longitudinal edges, accessible.
  • the ratio of the width of the gusset wings inserted between the front walls to the length determined in the bag longitudinal direction between the upper edge and the lower edge is between 1: 5 and 1: 8.
  • the width an inserted wing only half the width of a gusset formed by two wings corresponds.
  • the length of the flattened, unfilled foil bag blank is greater than the standing height of the foil bag, because the foil bag blank by filling and closing of the material of the front walls and the side folds forms a bottom and on the upper edge of the filling space is set up, which significantly reduces the height of the stand.
  • a method for producing a film bag having a first front wall, a second front wall, two gussets and a reclosure wherein a web of a bag film is guided with a sealing layer and an outer layer in a production direction, at a uniform distance through at least one Line of weakness and / or the separation of a portion of the bag film removal areas are formed, the width of which is smaller than the width of the front walls, and reclosures are placed on the removal areas and attached to the sealing layer of the bag film, wherein subsequently a gusseted tube with continuous gussets is formed in that the removal areas are each provided with a reclosure on the first front wall on an inner side of the bag, lateral ends of the reclosure being covered by the side folds, adjacent to the Wi ederverêtn to form a head portion each head seals are produced with at least one transverse seam, which wings of the gussets with the front walls and between the gussets connect the front walls
  • dividing lines in the front walls a carrying handle.
  • a dividing line to be included by a user is cut into the two front walls or punched through the two front walls.
  • the dividing lines on the front walls then form a slot that can be intervened by a user.
  • the dividing lines can be C-shaped.
  • a handle punching is formed to form the handle on the dividing lines, so that then the handle is visible immediately as an opening in the front walls.
  • the two front walls are initially not completely cut.
  • the dividing lines can also be formed as a type of perforation, with the user then tearing the perforation during the insertion of a hand.
  • the head seal is formed so that it surrounds the carrying handle frame-shaped with circumferential sealing seams.
  • the Fig. 1 shows a foil bag having a first front wall 1a, a second front wall 1b, two side folds 2 and a reclosure 3.
  • a pourable product for example pelleted pet food
  • the filling chamber 4 is closed by a connecting seam 5 upwards and separated from a head portion 6, wherein the connecting seam 5 is associated with the head portion 6.
  • a carrying handle 7 is formed by a transection of the front walls 1a, 1b, wherein the severing can be generated in a simple manner by punching.
  • the two lateral folds 2 each have two wings adjoining each other by a bending line 8 running in the longitudinal direction of the bag 1, which adjoin one of the front walls 1a, 1b at longitudinal bag edges 9.
  • Longitudinal sealing seams 10 are formed at the bag longitudinal edges 9, which stabilize the film bag, wherein the two front walls 1a, 1b, as described below (FIG. Fig. 4 ) are formed by folding and heat sealing of a bag film, wherein in one of the longitudinal sealing seams 10 and the edges of the bag film are connected.
  • the reclosure 3 is accessible through a window-shaped removal area 11 formed in the first front wall 1a.
  • the removal area 11 has before a first opening on a punched, in which a slider 12 of the reclosure 3 is arranged.
  • the removal region 11 ends at a distance from the bag longitudinal edges 9 and the longitudinal sealing seams 10 formed there.
  • a bottom seam 14 is provided, which the inserted between the front walls 1a, 1b wings of the gussets 2 with one of the front walls 1a, 1b and between the gussets 2, the two front walls 1a, 1b directly connects with each other.
  • Fig. 2 which make a section along the line AA of Fig. 1 shows as well as from the Fig. 3 , which shows a flattened, unfilled foil bag blank from which the in Fig. 1 represented foil bag is formed by filling and closing.
  • the reclosure 3 comprises mutually latching reclosing strips 15, each having a connecting lug 16 and a locking strip 17 adjoining the connecting lug 16.
  • the terminal lug 16 and the locking bar 17 can be extruded together as a strand.
  • the locking bar 17 is of the in Fig. 1 slider 12 overlapped shown, which brings together the locking strips 17 in the manner of a zipper during movement in a first direction and pulls apart in a movement in an opposite direction.
  • the terminal lugs 16 are connected to each other before their first opening at their ends to ensure a tamper-evident closure.
  • connection lugs 16 is fastened below the removal region 11 on the inside of the bag to the first front wall 1a by a heat-sealing seam, while the other connection lug 16 is sealed over an additional foil section 18 above the removal region 11 on the inside of the first front wall 1a.
  • the reclosure 3 is supplied as a prefabricated unit in the production and sealed, including according to the Fig. 3 a circumferential, closed frame-shaped sealing seam 22 can be produced.
  • a head seal 24 is formed with the connecting seam 5 frame-shaped, wherein the punched handle 7 is disposed within this frame-shaped head seal 24.
  • Fig. 1 has the film bag compared to the determined by the gussets 2 depth t a relatively low standing height h, wherein the ratio of measured in bag longitudinal direction l standing height h to determined by the gussets 2 depth t smaller than 3: 1, in particular smaller than 2.5: 1 is.
  • the ratio of the width b measured between the gussets 2 on the front walls 1a, 1b to the standing height h is between 1.5: 1 and 1: 1.5.
  • openings 20 can also be formed in the wings of the side folds 2 ( Fig. 4 ), through which the two front walls 1a, 1b are directly connected to each other, so that a fixation of the gussets 2 takes place.
  • the filling volume of the film bag is usually between 4 l and 20 l.
  • the depth t between 100 mm and 200 mm, for example 150 mm
  • the width b between 250 mm and 450 mm, for example, 350 mm
  • the standing height h between 250 mm and 450 mm, for example 350 mm
  • the Stand height h results from the height of the filling space 4 and the height of the head section 6 arranged above.
  • the front walls 1a, 1b and the side folds 2 are usually provided with a print.
  • the print can be arranged completely inside lying as a counter pressure in a laminated bag film.
  • the embodiment shows an alternative embodiment in which a print is applied from the outside to the outer layer of the bag film.
  • first printing portions 21a are dull while second printing portions 21b are glossy. This is achieved by arranging the second printing sections on an outer layer of PET inside, that is to say at the transition to an adjacent film layer, while the first printed sections 21a with a matt printing ink face on the opposite, exposed ones Side of the outer layer can be applied.
  • a core layer of PET is metallized.
  • the matt color and the printing ink are usually not provided in mutual coverage, but in different areas.
  • the carrying handle 7 usually extends between the gussets 2, in which case the gussets 2 are not integrated into the carrying handle 7. Furthermore, it is preferred that the reclosure 3 as well as the removal region 11 arranged in front of it have a distance from the longitudinal bag edges 9, but nevertheless superimpose the side gussets 2 running underneath at their edges.
  • the flattened unfilled foil bag blank according to the Fig. 3 already fully formed on his head and is closed, in which case filling takes place at the lower edge of the bag before the bottom seam 14 is then formed to close the film bag.
  • the Fig. 4 shows a preferred method to the in Fig. 3 To form the foil bag blank shown.
  • a material web of a bag film is guided with a sealing layer and an outer layer in a production direction P, wherein the sealing layer in the Fig. 4 is above.
  • the areas on which the two side gussets 2 and the two front walls 1a, 1b are subsequently formed are also indicated on the material web, even if the material web is initially completely flat.
  • the removal areas 11 are formed at a uniform distance, for which purpose an area is stamped out for the slides 12 of the reclosures 3 and an adjacent strip 13 is perforated.
  • openings 20 are punched out, with which subsequently the gussets 2 are fixed to the head portion 6 by directly connecting the two front walls 1a, 1b through the openings 20.
  • the reclosure 3 described above is placed on the sealing layer of the bag film and secured by a frame-shaped sealing seam 22, whereupon the bag film is converted by folding knife to a gusseted tube 23, on which the longitudinal sealing seams 10 are generated, the edges of the gusseted to the side 23 folded bag film on one of the longitudinal sealing seams 10 are connected to each other.
  • a head seal 24 is formed in the shape of a frame, wherein the head seal 24 comprises the connecting seam 5, which the in Fig. 1 and 2 shown filling space 4 separates from the head portion 6.
  • carrying handle 7 are then formed inside the head seal 24, wherein simultaneously or subsequently bag corners 25 are removed at the level of the carrying handle 7 and individual foil bag blanks are separated from the side fold tube 23.
  • Fig. 5a and 5b show that the film bag blank thus formed spreads at its lower edge, filled and then closed by the bottom seam 14.
  • the flattened, unfilled foil pouch blank can be produced as a prefabricated packaging (pre-made bag), transported and filled and closed at another location.

Landscapes

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

Claims (7)

  1. Sachet en film pourvu d'une première paroi frontale (1a), d'une seconde paroi frontale (1b), de deux plis latéraux (2), d'un système de refermeture (3), d'un espace de remplissage (4) formé par les parois frontales (1a, 1b) et les plis latéraux (2), d'un segment haut (6) séparé de l'espace de remplissage (4) par une soudure d'assemblage (5), d'une poignée de transport (7) créée sur le segment haut (6) par un sectionnement des parois frontales (1a, 1b), les plis latéraux (2) comportant chacun deux ailettes se raccordant l'une sur l'autre par une ligne de pliage (8) s'écoulant dans la direction longitudinale du sachet (l), lesquelles se raccordent sur des arêtes longitudinales du sachet (9) chacune sur l'une des parois frontales (1a, 1b), le système de refermeture (3) comportant des rubans de système de refermeture (15) s'enclenchant les uns dans les autres, pourvus de languettes de raccordement (16) et de listels d'encliquetage (17) sur lesquels est placé un curseur (12) destiné à assembler et à séparer les listels d'encliquetage (17), le système de refermeture (3) étant fixé par l'intermédiaire des languettes de raccordement (16) sur une face intérieure de l'espace de remplissage (4) et sur un fond inférieur de sachet, une soudure de fond inférieur (14) reliant des ailettes insérées entre les parois frontales (1a, 1b) des plis latéraux (2) avec chaque fois l'une des parois frontales (1a, 1b) et entre les plis latéraux (2), reliant les deux parois frontales (1a, 1b) l'une à l'autre, les parois frontales (1a, 1b) d'une part et les plis latéraux (2) d'autre part s'étendant en commun du fond inférieur de sachet jusqu'à un bord supérieur de sachet le long de l'ensemble des arêtes longitudinales du sachet (9), le système de refermeture (3) étant fixé par les deux languettes de raccordement (16) des rubans du système de refermeture (15) sur la première paroi frontale (1a) et étant accessible par l'intermédiaire d'une zone de prélèvement (11) créée en forme de fenêtre dans la première paroi frontale (1a), le système de refermeture étant placé directement en-dessous du segment haut et lorsque l'espace de remplissage est plein, la première paroi frontale s'écoulant en oblique, les ailettes des plis latéraux étant assemblées l'une à l'autre sur le segment haut, caractérisé en ce que le système de refermeture se termine avec un écart compris entre 10 mm et 45 mm par rapport aux arêtes longitudinales du sachet, le rapport de la hauteur (h) mesurée dans la direction longitudinale du sachet (l) à la profondeur (t) déterminée par les plis latéraux (2) étant inférieur à 3 : 1, notamment inférieur à 2,5 : 1, le rapport de la largeur mesurée entre les plis latéraux (2) sur les parois frontales (1a, 1b) à la hauteur (h) étant compris entre 1,5 : 1 et 1 : 1,5, les parois frontales (1a, 1b) et les plis latéraux (2) étant créés par pliage et thermoscellage à partir d'un coupon d'un film à sachet multicouches, le film à sachet comportant sur une face intérieure du sachet une couche de scellement thermoscellable sur la base de polyoléfine et sur une face extérieure du sachet une couche extérieure, le système de refermeture (3) étant fixé par une soudure de thermoscellage (22) fermée en forme de cadre et écartée des arêtes longitudinales du sachet (9) sur la première paroi frontale (1a), sur le segment haut (6), à hauteur de la poignée de transport (7), des angles du sachet étant sectionnés et le segment haut (6) comportant la soudure d'assemblage (5) qui délimite l'espace de remplissage (4) en tant que partie d'un scellement en forme de cadre et le sectionnement de matière destiné à créer la poignée de transport (7) étant placé à l'intérieur dudit scellement en forme de cadre.
  2. Sachet en film selon la revendication 1, caractérisé en ce que le rapport d'une longueur du segment haut (6), déterminée le long de la direction longitudinale du sachet (l) à la hauteur de l'espace de remplissage (4) est inférieur à 1 : 3.
  3. Sachet en film selon la revendication 1 ou 2, caractérisé en ce que les parois frontales (1a, 1b) et les plis latéraux (2) présentent une épaisseur comprise entre 60 µm et 200 µm.
  4. Sachet en film selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la languette de raccordement (16) de l'un (15) des rubans de système de refermeture est fixée en-dessous de la zone de prélèvement (11) et la languette de raccordement (16) de l'autre ruban (15) de système de refermeture est fixé directement ou par l'intermédiaire d'un segment de film (18) séparé au-dessus de la zone de prélèvement (11), la languette de raccordement (16) ou le segment de film (18) s'étendant au-dessus de la zone de prélèvement (11) jusqu'à la soudure d'assemblage (5).
  5. Sachet en film selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'espace de remplissage (4) présente un volume compris entre 4 litres et 20 litres.
  6. Ébauche de sachet en film posée à plat, non remplie, destinée à créer un sachet en film selon l'une quelconque des revendications 1 à 5, pourvue d'une première paroi frontale (1a), d'une seconde paroi frontale (1b), de deux plis latéraux (2), d'un système de refermeture (3), d'un tronçon tubulaire formé par les parois frontales (1a, 1b) et les plis latéraux (2), destiné à recevoir un produit de remplissage, d'un segment haut (6), séparé du tronçon tubulaire par une soudure d'assemblage (5), d'une poignée de transport (7) créée sur le segment haut (6) par un sectionnement des parois frontales (1a, 1b), les plis latéraux (2) comportant chacun deux ailettes se raccordant l'une sur l'autre par une ligne de pliage (8) s'écoulant dans la direction longitudinale du sachet (l), lesquelles se raccordent sur des arêtes longitudinales du sachet (9) chacune sur l'une des parois frontales (1a, 1b), le système de refermeture (3) comportant des rubans de système de refermeture (15) s'enclenchant les uns dans les autres, pourvus de languettes de raccordement (16) et de listels d'encliquetage (17) sur lesquels est placé un curseur (12) destiné à assembler et à séparer les listels d'encliquetage (17), et le système de refermeture (3) étant fixé par l'intermédiaire des languettes de raccordement (16) sur une face intérieure du tronçon tubulaire, les parois frontales (1a, 1b) d'une part et les plis latéraux (2) d'autre part s'étendant en commun du fond inférieur de sachet jusqu'à un bord supérieur de sachet le long de l'ensemble des arêtes longitudinales du sachet (9), les ailettes des plis latéraux (2) étant assemblées l'une à l'autre sur le segment haut (6) et le système de refermeture (3) étant fixé par les deux languettes de raccordement (16) des rubans de système de refermeture (15) sur la première paroi frontale (1a) et étant accessible par l'intermédiaire d'une zone de prélèvement (11) créée en forme de fenêtre dans la première paroi frontale (1a), caractérisée en ce que les parois frontales (1a, 1b) et les plis latéraux (2) sont créées par pliage et thermoscellage à partir d'un coupon d'un film à sachet multicouches, le film à sachet comportant sur une face intérieure du sachet une couche de scellement thermoscellable sur la base de polyoléfine et sur une couche extérieure du sachet une couche extérieure, en ce que le système de refermeture (3) est fixé par une soudure de thermoscellage (22) fermée en forme de cadre et écartée des arêtes longitudinales du sachet (9) sur la première paroi frontale (1a), en ce que sur le segment haut (6), à hauteur de la poignée de transport (7), des angles du sachet sont sectionnés, le segment haut (6) comportant la soudure d'assemblage (5) qui délimite l'espace de remplissage (4) en tant que partie d'un scellement en forme de cadre et le sectionnement de matière destiné à créer la poignée de transport (7) étant placé à l'intérieur dudit scellement en forme de cadre et en ce qu'un bord inférieur du sachet situé à l'opposé du segment haut (6) n'est pas fermé et forme une ouverture de remplissage, entre les parois frontales (1a, 1b) et les plis latéraux (2).
  7. Ébauche de sachet en film posée à plat, non remplie selon la revendication 6, caractérisée en ce que le rapport de la largeur des ailettes des plis latéraux (2) insérées entre les parois frontales (1a, 1b) à la longueur déterminée dans la direction longitudinale du sachet (l), entre le bord supérieur et le bord inférieur se situe entre 1 : 5 et 1 : 8.
EP14194358.9A 2014-11-21 2014-11-21 Sac à fermeture à glissière avant doté d'une poignée découpée et flan pour sa formation Active EP3023350B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PT14194358T PT3023350T (pt) 2014-11-21 2014-11-21 Saco com corrediça à frente com alça furada e molde para a sua construção
EP14194358.9A EP3023350B1 (fr) 2014-11-21 2014-11-21 Sac à fermeture à glissière avant doté d'une poignée découpée et flan pour sa formation
ES14194358T ES2733510T3 (es) 2014-11-21 2014-11-21 Bolsa de cierre frontal reutilizable con asa cortada y pieza en bruto de bolsa de lámina para su formación

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14194358.9A EP3023350B1 (fr) 2014-11-21 2014-11-21 Sac à fermeture à glissière avant doté d'une poignée découpée et flan pour sa formation

Publications (2)

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EP3023350A1 EP3023350A1 (fr) 2016-05-25
EP3023350B1 true EP3023350B1 (fr) 2019-04-10

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EP14194358.9A Active EP3023350B1 (fr) 2014-11-21 2014-11-21 Sac à fermeture à glissière avant doté d'une poignée découpée et flan pour sa formation

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EP (1) EP3023350B1 (fr)
ES (1) ES2733510T3 (fr)
PT (1) PT3023350T (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600106959A1 (it) * 2016-10-24 2018-04-24 Ica Spa Confezioni in materiale flessibile
ES2863319T3 (es) 2018-10-24 2021-10-11 Mondi Ag Bolsa de embalaje con pliegues laterales sin llenar ni cerrar

Citations (2)

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CH675235A5 (en) * 1988-06-06 1990-09-14 Mifa Ag Frenkendorf Sealable soft package - with sliding clasp fastener and made of specified plastic compound foil
US20110182531A1 (en) * 2009-12-18 2011-07-28 Mark Steele Package having a fill and seal feature

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DE4225998C2 (de) 1992-08-06 1998-04-16 Mildenberger & Willing Verpack Verfahren zur Herstellung von Verpackungsbeuteln mit Griffstück
US5722773A (en) 1994-11-29 1998-03-03 Bemis Company Inc. Plastic bag having a handle integral with the gusset
FR2792812B1 (fr) * 1999-04-27 2001-07-13 Flexico France Sarl Sachet comprenant des profiles de fermeture actionnes par curseur
US6991372B2 (en) * 2003-03-13 2006-01-31 Illinois Tool Works Inc. Reclosable packages with front panel slider-zipper assembly
DE10340099A1 (de) * 2003-08-30 2005-03-24 B & B Verpackungstechnik Gmbh & Co. Kg Beutel oder Sack aus Kunststoffolie und Verfahren zur Herstellung
US7210848B2 (en) 2003-12-18 2007-05-01 Morance Soudure System for opening/closing a packaging bag, and packaging bag equipped with this system
WO2008145164A1 (fr) 2007-05-31 2008-12-04 Nordenia Deutschland Halle Gmbh Sac d'emballage en film
ITFI20080086A1 (it) 2008-04-28 2009-10-29 Delicarta Spa "una confezione multipla di rotoli di carta tissue"
WO2010003233A1 (fr) * 2008-07-09 2010-01-14 Martin Woodhouse Emballage à soufflets latéraux refermable
US7971720B2 (en) 2009-06-24 2011-07-05 The Clorox Company Vertically stacking litter bag with handle
EP2284091B1 (fr) 2009-08-14 2012-12-19 Mondi Halle GmbH Sachet à soufflet latéral à partir d'une feuille de matière synthétique
DE202010002916U1 (de) * 2010-02-27 2011-08-02 Bischof Und Klein Gmbh & Co. Kg Beutel aus Kunststofffolie
EP2368706A1 (fr) * 2010-03-25 2011-09-28 Nordenia Deutschland Halle GmbH Procédé de fabrication d'un sachet à soufflets latéraux

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CH675235A5 (en) * 1988-06-06 1990-09-14 Mifa Ag Frenkendorf Sealable soft package - with sliding clasp fastener and made of specified plastic compound foil
US20110182531A1 (en) * 2009-12-18 2011-07-28 Mark Steele Package having a fill and seal feature

Also Published As

Publication number Publication date
ES2733510T3 (es) 2019-11-29
EP3023350A1 (fr) 2016-05-25
PT3023350T (pt) 2019-07-16

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