EP3889060B1 - Agencement de sachets en feuille, ainsi que procédé de formation d'un agencement de sachet en feuille - Google Patents
Agencement de sachets en feuille, ainsi que procédé de formation d'un agencement de sachet en feuille Download PDFInfo
- Publication number
- EP3889060B1 EP3889060B1 EP21160915.1A EP21160915A EP3889060B1 EP 3889060 B1 EP3889060 B1 EP 3889060B1 EP 21160915 A EP21160915 A EP 21160915A EP 3889060 B1 EP3889060 B1 EP 3889060B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag body
- offset
- film
- front walls
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims description 23
- -1 polypropylene Polymers 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 239000000123 paper Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 description 19
- 238000007789 sealing Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 239000002985 plastic film Substances 0.000 description 9
- 229920006255 plastic film Polymers 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 235000011837 pasties Nutrition 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 239000000976 ink Substances 0.000 description 4
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 description 1
- 208000031872 Body Remains Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013501 sustainable material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
-
- 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
- B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/008—Standing pouches, i.e. "Standbeutel"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/02—Articles partially enclosed in folded or wound strips or sheets, e.g. wrapped newspapers
-
- 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
- B65D2203/00—Decoration means, markings, information elements, contents indicators
Definitions
- the present invention relates to a film bag arrangement with a bag body having at least two front walls made of film and with a band arranged on the bag body, which extends only over part of a height of the front walls determined between a lower edge and an upper edge of the front walls, wherein the front walls have side edges running between the upper edge and the lower edge, provided with longitudinal seams and lying opposite one another, and wherein the bag body has a constriction between the upper edge and the lower edge of the front walls.
- the band is thus also arranged at a distance from the upper and lower edges of the front walls.
- the present invention also relates to a method for forming such a film bag arrangement.
- the film bag arrangement with the bag body on the one hand and the banderol on the other hand comprises at least two elements which can be manufactured and disposed of independently of one another.
- the bag body is closed when filled and thus forms a film package.
- the film bag arrangement according to the invention is particularly suitable for liquid, including pasty or generally pourable filling goods, whereby the bag body is curved outwards when filled and thus receives a certain strength and stability.
- the bag body can also be provided with a base, a separately attached or punched carrying handles, pourers, resealable closures or the like.
- the banderol is otherwise arranged loosely or at least largely loosely on the bag body.
- the EP3 168 169 B1 Like the present invention, it is concerned with recycling the materials as simply as possible, for which purpose the bag body and the band can each be made of a single type and can also be disposed of separately. It can also be provided that the bag body is completely unprinted. Depending on the polymer material used, the bag body is therefore clear, cloudy, opaque or colored in one color, including white or black. It should be noted that printing inks can represent undesirable foreign substances, especially when recycling polymers. Typical dyes can be physiologically problematic in plastics and can also impair the mechanical and optical properties of a recyclate formed.
- a film bag arrangement that is suitable for recycling should also have a high-quality appearance and an attractive graphic design.
- user information such as contents, instructions for use, manufacturer information or the like should also be provided.
- a band that is closed on the circumference and otherwise loose can be placed around a concave shape of the bag body.
- the band can be shrunk on.
- a band with a uniform ring shape, ie essentially straight edges, does not fit evenly on the bag body, which impairs the appearance. With a shrunk band, manual separation can be difficult even if the bag body is empty.
- a bag body is provided with a banderol. Even if the bag body is raised by the liquid contents, the ring-shaped banderol can be accidentally or deliberately pulled off the filled bag body, so that the information required by a user is no longer available.
- EP 3 594 144 A1 deals with improved recycling, whereby after removing a printed section of material, a An unprinted and preferably single-variety bag body remains. To do this, a user must deliberately tear off the material section, whereby the production of the very high-quality film bag arrangement also involves a certain amount of effort.
- the object of the present invention is to provide a film packaging bag arrangement which is constructed simply and inexpensively, has an attractive design and can be handled particularly easily by a user for recycling.
- the invention provides that the constriction is formed by an upper and a lower offset of the side edges, wherein the distance between the upper and the lower offset corresponds at least to a height of the banderol.
- a contact surface for the band is defined, whereby a form-fitting reception of the band, which is adjusted in size, can be achieved there.
- the bag is drawn inwards, so to speak, whereby the side edges between the upper offset and the lower offset run straight according to a preferred embodiment of the invention and thus also form a contact surface for the band which is straight in plan view.
- a substantial cylindrical section is formed between the upper offset and the lower offset which holds the band.
- the front walls made of the inherently flexible film are curved outwards. Particularly when liquid has been absorbed and the bag body is completely or almost completely filled, a form fit is ensured if the banderol is of a suitable size.
- the front walls can also be deformed into the bag body so that the band can then be easily removed. This applies in particular if the band is only or mainly held to the bag body by a positive fit according to a preferred embodiment of the invention.
- the band can be easily fixed to the bag body, for example using hot melt adhesive or another adhesive, for manufacturing reasons. If such a preferably only light and only point-based connection does not come loose beforehand, it can also be easily separated by a user within the scope of the invention.
- the banderole In the case of a completely emptied bag body and also in the case of a partially emptied bag body, the banderole will usually also separate from the Lift off the bag body. It is therefore obvious to a user that the two components can and should be separated very easily.
- the band practically falls off by itself, so that a user must then grasp and handle both parts separately and is thus guided to proper, separate disposal that enables easy recycling.
- the band does not have to be laboriously torn open under any circumstances.
- the edges between the upper offset and the lower offset run straight or essentially straight according to a preferred embodiment of the invention.
- the side edges can run straight at least in a partial area above the upper offset and in a partial area below the lower offset. This can of course also lead to roundings, bevels or the like towards the corners of the bag body.
- the upper offset and the lower offset - unlike in the case of a generally concave shape known from the prior art - should be spatially limited in order to provide a clearly defined receiving area for the banderole and a smooth installation. Nevertheless, with regard to the handling of the bag body as Also for the sake of mechanical strength, sharp right-angled developments, sharp corners or the like should be avoided.
- the longitudinal seams in the area of the upper offset and the lower offset can run diagonally over a short length, in particular at an angle of between 30° and 60° in relation to the adjacent straight sections.
- the upper offset and the lower offset each extend over an offset height of between 2 mm and 20 mm, in particular between 4 mm and 15 mm.
- the offset height is to be determined along the height of the front walls.
- the upper offset and the lower offset each extend along a transverse direction over an offset width of between 2 mm and 20 mm, in particular between 4 mm and 15 mm.
- the offset width thus indicates how far the side edges between the upper offset and the lower offset are pulled inwards towards the bag body. If the offset width is too small, the banderol can still be accidentally or deliberately pulled off the filled bag body, which is generally not desired. If the offset width is too large, it can become more difficult to remove the banderol from the bag body after it has been completely or partially emptied, and the overall filling volume of the bag body is also reduced.
- the specified offset width is also appropriate in view of the usual tolerances of the band. It goes without saying that the circumferential length of the usually precisely cylindrical band is matched to the circumferential length of the bag body between the upper offset and the lower offset when filled, or corresponds to this value.
- the banderol is undersized, in particular slightly undersized, a clamping fixation can be achieved under all circumstances when the bag body is filled.
- a suitable offset width can be used to prevent the banderol from being lost.
- the banderol it is then possible for the banderol to be twisted relative to the bag body, which can be tolerated in many cases. If twisting is to be avoided, it is possible to fix it easily and detachably using adhesive or the like - as already described.
- the band is intended to enable a print or a general graphic design independent of the bag body itself.
- the band can also have, for example, embossing, cut-outs or the like in addition to or as an alternative to a print, which can be applied either in certain areas or over the entire surface. It is often expedient to design the band in an appealing way for a user and also to provide it with relevant user information such as manufacturer information, trademarks, product names, consumption information, contents information or the like.
- the banderole can also contribute to a certain stabilization of the bag body. This stabilization is particularly ensured when the bag body is completely or at least largely filled with a liquid, a pasty material or a pourable material and the front walls bulge outwards. Particularly when the bag is full, the body of the bag can be subjected to particularly high loads.
- the banderol can, for example, help to prevent the bag body from bursting or to do so later when subjected to loads.
- the band extends over 10% to 90%, preferably between 20% and 70%, particularly preferably between 30% and 60% of the height of the front walls.
- the absolute height of the banderol then naturally also depends on the dimensions of the bag body and can, for example, be in a range between 40 mm and 300 mm.
- the distance between the upper offset and the lower offset corresponds at least to the height of the band. This ensures that the band can lie evenly and largely flat on the filled bag body between the upper offset and the lower offset. These properties are already achieved if the distance between the upper and lower offset corresponds exactly to the height of the band.
- the distance between the upper and lower offset can also be, for example, 1 mm to 40 mm, in particular 1 mm to 15 mm larger, in order to compensate for certain manufacturing variations. Of course, an even greater excess in terms of height is also possible, but then the band can also be moved accordingly along the height if it is not attached to the bag body by a detachable fixation.
- the bag body and the band should be easily able to be handled and disposed of separately by a user after use of the film bag arrangement, in particular to enable improved recycling. It is understood that this measure is particularly useful and intended when the bag body on the one hand and the band on the other hand are made of different materials and/or are prepared differently.
- the front walls are made of film.
- the film is flexible and deformable - unlike, for example, in thermoformed packaging - so that the band can be easily removed from the bag body after it has been emptied or partially opened.
- the thickness of the film is typically in a range between 30 ⁇ m and 250 ⁇ m, in particular between 50 ⁇ m and 150 ⁇ m.
- the bag body can be 90%, 95% or completely unprinted in relation to its surface. It must be taken into account that printing on plastic film is sometimes associated with a certain amount of process engineering effort and also requires specially adhesive printing inks that usually cannot be separated from the plastic itself, or can only be separated with great effort, even in a recycling process. Corresponding dyes therefore often represent a chemically undesirable foreign substance in a recycling process. This applies in particular to recyclates that are intended to meet high optical requirements and/or are intended to be physiologically safe as food or beverage packaging.
- a particularly high-quality recycling is also possible if the front walls and preferably the entire bag body are made of a single polymer, in particular a polyolefin.
- single-variety packaging is understood to mean in particular when the front walls and in particular the entire bag body are made of plastic from a polymer class such as polyethylene or polypropylene.
- the film of the front walls can be multi-layered, whereby the bag body can also have other components such as a separate film section as a bottom fold and/or functional elements such as a pourer or resealable closures. These are then also expediently made of single-variety packaging with the front walls.
- different layers of the front walls and/or other components are made of polyethylene or polypropylene
- these materials can also be present in different densities, such as ULDPE, LDPE, LLDPE, MDPE, LLMDPE and HDPE.
- the different density classes can also be collected and recycled together, although such a mixture naturally has material properties that differ from the individual different starting plastics.
- the bag body can also be made from a single material in a narrower sense, with materials from a relatively narrow density range being provided.
- HDPE high-density polyethylene
- LDPE low-density polyethylene
- the properties of the plastic film can be influenced not only by the selection of raw materials and, if necessary, a multi-layer structure, but also by the production, modification and processing of the plastic film.
- the plastic film can be monoaxially or biaxially oriented, which can also lead to improved mechanical properties and/or other sealing properties.
- the plastic film of the bag body is designed as a monofilm, it can be made from a single polymer type or a blend.
- the plastic film for the front walls is a multilayer film, whereby the mechanical properties, desired barrier properties and heat sealing properties can be further influenced.
- the inner layer forms an inseparable bond with itself when heat-sealed. This is particularly useful when, with regard to a drop test on the longitudinal sealing seams of the bag body, an undesirable occurrence and thus destruction of the bag body is to be prevented.
- the front walls and therefore preferably the entire bag body are unprinted.
- the front walls and in particular the entire bag body can be clear, cloudy, opaque or even single-colored.
- color pigments such as titanium dioxide that are embedded in the polymer matrix from the outset are generally less of a concern than white pigments.
- no additional solvents or other additives are required when introducing the corresponding pigments.
- the band can also be made of plastic, whereby the band can then be disposed of separately as a printed element and possibly processed into a lower-quality recyclate.
- a film is intended as a band, it should be as thin as possible, for example with a thickness of between 10 ⁇ m and 60 ⁇ m.
- the film for use as a band preferably has a high rigidity, for which appropriately rigid plastic materials and/or an orientation to increase the rigidity can be provided. Simple polyolefins such as polyethylene (PE) and polypropylene can also be considered, especially for an oriented film.
- PE polyethylene
- polypropylene can also be considered, especially for an oriented film.
- the band is made of cardboard or paper, whereby the band can then be fed into a conventional paper recycling process.
- recycling paper it is usual for the products to be printed, so that no special measures are necessary for the banderol to be recycled.
- the banderol can be printed very well if it is made of cardboard or paper as the printing medium. Unlike with films, physiologically harmless or less problematic printing inks can also be used.
- a band made of cardboard or paper can also help to stiffen the bag body in the manner of a strap. If a relatively stiff cardboard is used as a band, this effect is further enhanced. With a band made of cardboard, even after the band has been removed from the bag body, one side edge of the flattened band can be used to spread out a liquid or plastic filling material when the bag body is completely or almost completely emptied, which of course further improves the recyclability of the plastic.
- the banderol made of cardboard or paper, typically has a basis weight between 30 g/m 2 (grams per square meter) and 300 g/m 2 .
- the invention also relates to a method for forming the previously described film bag arrangement, wherein a bag body with two front walls and two longitudinal seams connecting the front walls is formed from a bag film, before or after the formation of the bag body, an outer edge of the front walls is removed in a central region of the longitudinal seams in order to form an upper attachment and a lower offset on the longitudinal edges of the bag body produced, the bag body produced with a particularly liquid or pasty filling material is filled and sealed and a circumferentially closed banderole is placed between the upper offset and the lower offset.
- the band can be arranged before filling.
- the front walls are formed by folding or feeding two film strips lying flat on top of each other, with the longitudinal seams then also preferably being formed by heat sealing.
- a separate film section can also be fed in to form a standing base, which is also connected to the front walls by seams, in particular heat sealing seams.
- the film section can be made of the same material as the front walls.
- the upper offset and the lower offset can either be previously formed on the front walls or preferably created by cutting or punching during the forming process.
- the formation of the longitudinal seams by heat sealing and the removal of parts of the front walls to form the upper offset and the lower offset can be created sequentially or simultaneously with combined cutting and sealing jaws.
- a strip particularly made of cardboard or paper
- a strip can be placed in the area between the upper attachment and the lower offset, folded around the bag body and then closed, for example, with adhesive or mechanically by means of slits or the like.
- This can result in a certain form-fitting effect even when the bag is laid flat, even if the front walls made of film have considerable flexibility.
- a removable attachment can also be made, for example by means of individual dots of hot glue.
- the band is not formed directly around the bag body, but is pre-produced, whereby the bag body is then inserted into the band which is already closed on the circumference.
- Such threading of the bag body into the band can take place immediately after the bag body has been manufactured or just before the bag body is filled, whereby the manufacture of the bag body and the filling often take place at different production sites and in particular at different companies.
- the band is made of plastic, shrinking it is also conceivable. However, this option is usually disadvantageous due to the flexibility of the bag body.
- the Fig.1 shows a film bag arrangement with a bag body 2 having two front walls 1 made of plastic film and with a banderol 3, which is shown separately for better recognition.
- the foil bag arrangement with the banderole 3 on the bag body 2 is in the Fig.2 and 3 shown.
- the banderole 3 extends only over a part of a height h F determined between a lower edge and an upper edge of the front walls 1, wherein the front walls 1 have side edges 5 running between the upper edge and the lower edge, provided with longitudinal seams 4 and lying opposite one another, wherein the bag body 2 has a constriction between the upper edge and the lower edge of the front walls 1.
- the constriction is formed by an upper offset 6a and a lower offset 6b of the side edges 5, wherein the distance h Z between the upper and lower offset 6a, 6b corresponds at least to a height h B of the banderole 3.
- the side edges 5 each run between the upper offset 6a and the lower offset 6b straight along a vertical direction, along which the previously determined heights h F , h Z , h B are also determined. Above the upper offset 6a and below the lower offset 6b, a straight course of the side edges 5 is also initially provided.
- the banderole 3 is dimensioned in such a way that it can be used with a filled bag body 2 (see Fig.3 ) is held in a form-fitting manner between the upper offset 6a and the lower offset 6b without the need for additional fastening.
- the band 3 can therefore be removed very easily by a user for separate recycling.
- the band 3 does not even have to be torn open for separate recycling. It is immediately apparent to a user that the band can and should be removed very easily when the bag body 2 is empty.
- the band 3 typically extends over 10% to 90%, preferably 20% to 70% of the height h F of the front walls. It should be noted that in the preferred embodiment shown, only the band 3 is printed, while the bag body 2 is completely unprinted and made of pure polypropylene or pure polyethylene.
- the height h B of the banderol is chosen so as to provide an attractive appearance and to provide sufficient space for an imprint 7 which, in addition to a graphic design, may also include user information, manufacturer instructions, ingredient information and the like.
- banderole 3 can also provide a certain degree of stabilization.
- the banderol 3 can easily be made of cardboard or paper, so that the corresponding established recycling paths can be used for the banderol 3.
- the longitudinal seams 4 which are usually formed by heat sealing, have a substantially constant width b N over their length despite the offset 6a, 6b.
- the longitudinal seams 4 therefore run according to the Fig. 4A also at the upper offset 6a and the lower offset 6b with a constant or essentially constant width b N , so that the filling space defined by the bag body 2 is also slightly reduced in accordance with the upper offset 6a of the lower offset 6b.
- the width b N of the longitudinal seams 4 between the upper offset 6a and the lower offset 6b is reduced according to the upper offset 6a and the lower offset 6b, so that a straight end is obtained for the filling space of the bag body 2. Even if this results in advantages with regard to a uniform design of the filling space and straight, wide sealing jaws can be used, a larger width b N of the sealing seams 4 is to be provided in order to be able to form the upper offset 6a and the lower offset 6b with the constricted area between them by punching or cutting. Furthermore, with a design according to the Fig. 4A an even more reliable form fit can be achieved.
- the longitudinal seams 4 on the offset can, for example, run obliquely at an angle between 30° and 60° in relation to the adjoining straight areas.
- the upper 6a and the lower offset 6b can, for example, extend over an offset height hv between 2 mm and 20 mm.
- the offset width bv determined along a transverse direction is, for example, between 2 mm and 20 mm.
- the bag body 1 can have further components in addition to the front walls 1.
- a separate film section is provided as a bottom fold 8.
- This film section can consist of the same plastic film as the front walls 1.
- a pourer 9 is sealed onto the upper edge of the front walls 1. It is advisable to ensure that the entire bag body 2 with the front walls 1, the bottom fold 8 and the pourer 9 is of the same type.
- the band 3 can be arranged on the bag body 1 in different ways.
- a strip for forming the band can be fed directly during the manufacturing process while the bag body 2 is still flat and then placed around the bag body 2 between the upper offset 6a and the lower offset 6b, with a peripheral closure then taking place, for example, using adhesive.
- the bag body 2 and a band 3 that is already closed on the circumference are initially manufactured separately, with the bag body 2 then being threaded into the band 3.
- Such a merging can take place immediately after the bag body 2 has been manufactured or just before the bag body 2 is filled with a liquid, a pasty material or a powdery, pourable material. It should be noted that the manufacture of the bag body 2 and the filling often take place in different, spatially separate locations.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Claims (10)
- Agencement de sachet en film comprenant un corps de sachet (2) présentant au moins deux parois avant (1) en film et une bande (3) disposée sur le corps de sachet (2) qui s'étend uniquement sur une partie d'une hauteur (hF) des parois avant (1) définie entre un bord inférieur et un bord supérieur des parois avant (1), dans lequel les parois avant (1) présentent des bords latéraux (5) opposés entre eux et dotés de soudures longitudinales (4), passant entre le bord supérieur et le bord inférieur, et dans lequel le corps de sachet (2) présente un étranglement entre le bord supérieur et le bord inférieur des parois avant (1), caractérisé en ce que l'étranglement est formé par un décalage supérieur et inférieur (6a, 6b) des bords latéraux (5), dans lequel l'écart (hZ) entre le décalage supérieur et inférieur (6a, 6b) correspond au moins à une hauteur (hB) de la bande (3) .
- Agencement de sachet en film selon la revendication 1, caractérisé en ce que les bords latéraux (5) entre le décalage supérieur (6a) et le décalage inférieur (6b) ainsi qu'au-dessus du décalage supérieur (6a) et au-dessous du décalage inférieur (6b) sont droits.
- Agencement de sachet en film selon la revendication 1 ou 2, caractérisé en ce que le décalage supérieur (6a) et le décalage inférieur (6b) s'étendent respectivement sur une hauteur de décalage (hV) entre 2 mm et 20 mm.
- Agencement de sachet en film selon l'une des revendications 1 à 3, caractérisé en ce que le décalage supérieur (6a) et le décalage inférieur (6b) le long d'un sens transversal s'étendent entre 2 mm et 20 mm respectivement sur une largeur de décalage (bv).
- Agencement de sachet en film selon l'une des revendications 1 à 4, caractérisé en ce que la hauteur de la bande (3) fait entre 40 mm et 300 mm.
- Agencement de sachet en film selon l'une des revendications 1 à 5, caractérisé en ce que le corps de sachet (2) n'est pas imprimé.
- Agencement de sachet en film selon l'une des revendications 1 à 6, caractérisé en ce que le corps de sachet (2) est formé pur en un plastique, en particulier en polypropylène ou en polyéthylène.
- Agencement de sachet en film selon l'une des revendications 1 à 7, caractérisé en ce que la bande (3), lorsque le corps de sachet (2) est rempli, est maintenue par complémentarité de forme entre le décalage supérieur (6a) et le décalage inférieur (6b).
- Agencement de sachet en film selon l'une des revendications 1 à 8, caractérisé en ce que la bande (3) est imprimée et est formée en carton ou en papier.
- Procédé de formation d'un agencement de sachet en film selon l'une des revendications 1 à 9, dans lequela. un corps de sachet (2) avec deux parois avant (1) et deux soudures longitudinales (4) reliant les parois avant (1) entre elles est formé à partir d'un film à sachet,b. un bord extérieur des parois avant (1) est enlevé avant ou après la formation du corps de sachet (2), dans une partie centrale des soudures longitudinales (4), afin de former un décalage supérieur (6a) et un décalage inférieur (6b) sur les bords latéraux (5) sur le corps de sachet (2) fini,c. le corps de sachet (2) fini est rempli de produit de remplissage et fermé puisd. une bande (3) fermée sur tout le pourtour est disposée entre le décalage supérieur (6a) et le décalage inférieur (6b).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020108929.5A DE102020108929A1 (de) | 2020-03-31 | 2020-03-31 | Folienbeutelanordnung sowie Verfahren zur Bildung einer Folienbeutelanordnung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3889060A1 EP3889060A1 (fr) | 2021-10-06 |
EP3889060B1 true EP3889060B1 (fr) | 2024-05-29 |
Family
ID=70469099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21160915.1A Active EP3889060B1 (fr) | 2020-03-31 | 2021-03-05 | Agencement de sachets en feuille, ainsi que procédé de formation d'un agencement de sachet en feuille |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3889060B1 (fr) |
DE (1) | DE102020108929A1 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0584640U (ja) * | 1992-04-17 | 1993-11-16 | 株式会社吉野工業所 | 詰め替え用液体収納袋 |
US6280085B1 (en) | 2000-03-20 | 2001-08-28 | Fres-Co System Usa, Inc. | Flexible package with peel-away covering |
AU2003234290A1 (en) | 2002-05-14 | 2003-12-02 | Mars Incorporated | Pillow pouch packaging with reinforcing elements |
ES2786093T3 (es) | 2015-11-13 | 2020-10-08 | Mondi Ag | Bolsa de film |
EP3594144B1 (fr) | 2018-07-13 | 2021-02-17 | Mondi AG | Sachet recyclable |
-
2020
- 2020-03-31 DE DE102020108929.5A patent/DE102020108929A1/de active Pending
-
2021
- 2021-03-05 EP EP21160915.1A patent/EP3889060B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
EP3889060A1 (fr) | 2021-10-06 |
DE102020108929A1 (de) | 2020-05-14 |
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