EP2186741B1 - Sac d'emballage - Google Patents

Sac d'emballage Download PDF

Info

Publication number
EP2186741B1
EP2186741B1 EP08019912A EP08019912A EP2186741B1 EP 2186741 B1 EP2186741 B1 EP 2186741B1 EP 08019912 A EP08019912 A EP 08019912A EP 08019912 A EP08019912 A EP 08019912A EP 2186741 B1 EP2186741 B1 EP 2186741B1
Authority
EP
European Patent Office
Prior art keywords
packaging bag
outer layer
inner layer
ventilation
bag
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
EP08019912A
Other languages
German (de)
English (en)
Other versions
EP2186741A1 (fr
Inventor
Jens Kösters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordenia Deutschland Halle GmbH
Original Assignee
Nordenia Deutschland Halle GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordenia Deutschland Halle GmbH filed Critical Nordenia Deutschland Halle GmbH
Priority to PL08019912T priority Critical patent/PL2186741T3/pl
Priority to AT08019912T priority patent/ATE497916T1/de
Priority to DE502008002575T priority patent/DE502008002575D1/de
Priority to ES08019912T priority patent/ES2356399T3/es
Priority to EP08019912A priority patent/EP2186741B1/fr
Publication of EP2186741A1 publication Critical patent/EP2186741A1/fr
Application granted granted Critical
Publication of EP2186741B1 publication Critical patent/EP2186741B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple 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
    • B65D33/01—Ventilation or drainage of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element

Definitions

  • the invention relates to a packaging bag for powdery filling material, in particular a building material packaging bag for cementitious construction chemical products, with two opposite, limited by longitudinal edges front walls and an inner layer of plastic and an outer layer, which are partially connected to each other, wherein the primary venting of the bag interior during a filling with a powdery, dusty filling material, the inner layer has air passage openings which allow a quick immediate removal of the displaced air through the inner layer and by a formed between the inner layer and the outer layer area, wherein the outer layer is formed of a plastic film, and wherein on the outer layer to permanent ventilation of the packaging bag after its closure a secondary vent is provided, which allows a slow gas outlet.
  • Typical cementitious building chemical products which cure with the addition of water as a result of chemical reaction are mortars, concrete, tile adhesives and cementitious plaster and leveling compounds for walls and floors and in general for filling openings and unevenness.
  • Such products are usually kept ready as a fine powder, which may be provided depending on the application and application area different container sizes.
  • the packaging bag can also be provided for another powdered filling material, for example from the fields of chemistry and food and feed. Without limitation, it can be, for example, vegetable and animal flours, pigments and filler such as chalk.
  • the filling of the packaging bag described is generally carried out by machine, wherein the on one side, usually the top, not yet closed packaging bag is fed to a filling device, which usually has a hopper. Because the supply of powdered Filling to the filling device and the supply and removal of the packaging bag before or after filling readily with a high speed are possible, the processing frequency to be achieved and thus the efficiency of the filling is determined by the filling itself. In this case, there is the problem that the supplied packaging bag must be stopped for filling the powdery filling material and then air pockets can arise within the bag with a quick filling. By such air pockets, the effective filling volume is significantly reduced, so that either the filling speed to avoid air bubbles significantly reduced, reduces the amount of filling or overflowing the bag must be taken into account.
  • a packaging bag for powdery product with the features described above is known from WO 2008/058079 A2 known.
  • the packaging bag comprises at least one inner film and one outer film, wherein the two films are provided on the bag surfaces with evenly distributed openings.
  • the openings in the outer film should be smaller than the openings in the inner film. Particles that accumulate in the space between the two films, but can thereby clog the openings in the outer film, whereby the venting of the bag can be affected.
  • the primary ventilation and the secondary ventilation must be carried out in a coordinated manner, since the openings provided on the inner film serve both for primary ventilation and for secondary ventilation.
  • a packaging bag with the features described above is also from the DE 19 32 203 A known, wherein between an inner layer of plastic and outer layer of plastic webs are formed.
  • the inner layer and the outer layer have mutually offset openings, wherein a secondary ventilation can take place through the intermediate spaces formed by the spacer elements.
  • the primary ventilation and the secondary ventilation must be precisely coordinated with each other.
  • the generation of the spacer elements associated with an increased manufacturing and cost.
  • a packaging bag which in addition to an outer layer of paper has an inner layer of a sealable plastic film, wherein the plastic film is provided with a plurality of vents.
  • the air displaced in the lower region through the air passage openings of the inner layer and formed between the inner layer and the outer layer areas the bag at the head-side filling opening leave. Due to the perforation of the inner layer and the formation of the outer layer of paper, a comparatively high gas exchange is possible even after the bag has been closed.
  • cement as a component of cementitious construction chemical products usually has a not insignificant proportion of water-soluble chromium (VI) compounds
  • these chromates in contact with the skin can cause strong contact dermatitis, which are also referred to as bricklaying.
  • a cement or a cementitious preparation based on the mass of dry cement may not exceed 0.0002% (corresponds to 2 ppm) of water-soluble chromate. If skin contact can not be excluded during processing, the products may not be placed on the market and used if the limit value is exceeded.
  • chromate reducers for example iron (II) sulfate, tin sulfate and various sulfonates
  • cement-containing construction chemicals which are intended to convert the water-soluble chromates into harmless products, in particular chromium (III).
  • chromate reducers in particular the commonly used iron (II) sulfate preparations, are easily passivated by air oxidation and are then no longer available for the conversion of the chromates.
  • the invention has for its object to provide a packaging bag for powdery product, which allows an overall improved shelf life of the contents.
  • the packaging bag should be used as a building material packaging bag for cementitious construction chemical products and in terms of secondary ventilation increased tightness against the entry of substances from the environment and increased reliability.
  • the object is achieved in that is provided in the region of at least one of the longitudinal edges of a longitudinal sealing seam with a vent channel as a secondary vent.
  • the venting channel in the region of one of the longitudinal edges, which is designed as a folded edge, is delimited by the folded edge and a longitudinal sealing seam separating the venting channel from the bag interior, wherein an interruption of the longitudinal sealing seam forms an inlet opening into the bag interior and wherein an outside outlet opening the venting channel is arranged offset.
  • the outer layer of a plastic film provides improved protection against moisture and in particular also represents a diffusion barrier. Therefore, during storage only a controlled gas exchange via the secondary vent, so that the entry of atmospheric oxygen into the bag can be greatly reduced.
  • the invention is based on the finding that the tightness of the formed as a plastic film outer layer is much higher compared to an outer layer of paper, the secondary vent can just be designed so that just a sufficient ventilation of the packaging bag is guaranteed.
  • the formation of the outer layer of a plastic film also causes various other advantages of the invention.
  • the risk of ingress of moisture and steam is greatly reduced, so that even with a long storage, the risk of clogging of the contents can be practically excluded.
  • a transport or storage of the packaging bag in a humid environment which is to avoid a packaging bag with an outer layer of paper necessarily, do not lead to an impairment of the contents. The effort required for storage can thus be significantly reduced.
  • the packaging bags according to the invention can be stored, for example, on a construction site, at a building materials dealer or in the hardware store outdoors.
  • the design of the secondary ventilation is of importance in the context of the invention.
  • the provided for the slow gas outlet secondary venting has a valve effect.
  • the invention is based on the finding that by venting usually a high pressure in the bag and inflation should be avoided, but on the one hand, as described above, excessive entry of ambient air, moisture or steam should be avoided and on the other hand, a smaller Overpressure, which does not lead to excessive inflation of the bag, can be tolerated.
  • separate valve elements can be provided for the secondary ventilation, which are placed on the outer layer.
  • the inner layer is formed according to the present invention from plastic and is usually made of a plastic film.
  • the air passage openings of the inner layer which is preferably designed as a perforated film, are expediently designed such that a passage of large quantities of filling material during the filling of the packaging bag is avoided.
  • a pulverulent filling material for example a cementitious construction chemical product
  • For the size and arrangement of the air outlet openings on the inner layer is rather crucial that even at very high filling speeds of the injection of air can be safely avoided, so that a fast process management is made possible without the risk of overflowing or other interference.
  • the entire top opening area of the packaging bag is often filled with a hopper during filling to ensure a fast process guidance, so just in this case a very fast and complete primary vent is required by the air outlet openings of the inner layer and the areas formed between the inner layer and the outer layer.
  • the perforation of the inner layer formed from a plastic film can be produced for example by a needling, wherein the puncture direction is taken into account.
  • the inner layer can be arranged such that the elevations are arranged in the direction of the outer layers or in the direction of the bag interior.
  • the elevations serve as spacers, so that in the areas in which the inner layer and the outer layer are not connected to each other, a distance from the outer layer is generated, which promotes a particularly rapid primary ventilation.
  • the protrusions are arranged in the direction of the bag interior, this leads to an increase in the roughness.
  • the friction between the inside facing the bag interior and the inflowing filling material is increased, so that a kind of rolling motion or turbulence arises at the boundary layer .
  • the formation of a needling can be advantageous.
  • polymers may be formed which on their own favor a comparatively high degree of friction.
  • the friction-increasing organic or inorganic fillers such as chalk as an admixture or a Be provided inside coating the inner layer.
  • the inner layer may also be laminated or coextruded in a multilayered manner.
  • the plastic film provided for the outer layer can be embodied without restriction as a monofilm, coextruded film or multilayer laminated film.
  • the term plastic film refers in the context of the present invention to a sheet, which contains as the main and structuring component of polymers.
  • the plastic film also has organic or inorganic fillers and additives as well as coatings or coatings. In particular, metallization is also possible to increase the barrier effect.
  • the plastic film for the outer layer for example, an inner layer of polyolefin, preferably polyethylene, and an outer layer of polyester, preferably polyethylene terephthalate, wherein on the outer layer of polyester prior to lamination with the inner layer of polyolefin inside a print can be applied.
  • Polyethylene terephthalate is characterized by a high strength, a smooth high-quality surface and a good barrier effect. Due to the different sealing properties of PET as outer layer and PE as inner layer, the laminated film described can also be very easily heat-sealed.
  • the plastic film of the outer layer is formed as a monofilm, coextrusion film or multilayer laminated film made entirely of polyethylene.
  • the friction between the then superimposed layers of polyethylene compared to the friction between Layers of polyethylene terephthalate is large and therefore the risk of slipping can be reduced from each other.
  • the inner layer is formed in accordance with a preferred embodiment of the invention of polyethylene, the entire packaging bag after emptying is particularly easy to dispose of and recycle.
  • an imprint may be provided on the outside. This imprint can then be covered by a lacquer layer which serves to protect the imprint and / or increase the friction.
  • the plastic film which forms the outer layer, an embossment.
  • This embossing provided on the entire outer layer or only in sections may in particular be provided to keep the inner layer and the outer layer at least in certain regions at a certain distance, so that the primary ventilation is facilitated.
  • the roughness of the outer layer can be increased by the embossing, which may be advantageous in terms of the connection of the outer layer with the inner layer and the stackability of the packaging bag.
  • the packaging bag has two oppositely arranged front walls, which are bounded by longitudinal edges. At the longitudinal edges, the front walls can be connected directly to each other. Preferably, however, it is provided to arrange gussets between the front walls, so that the packaging bag is designed as a gusseted bag, wherein the then four longitudinal edges are each formed between one of the gussets on the one hand and one of the front walls on the other.
  • a side gusset bag thus formed is characterized by a very good stability and can also be stored and used standing in the formation of a stand.
  • the venting channel is formed between the associated folding edge and a longitudinal sealing seam slightly offset inwardly from the folding edge, which can have an approximately constant thickness above and below the interruption in the longitudinal sealing seam, whereby a ventilation channel is formed, which extends over the entire length of the Longitudinal edge extends.
  • a ventilation channel is formed, which extends over the entire length of the Longitudinal edge extends.
  • the at least one ventilation channel extends over part of the length of the associated longitudinal sealing seam, wherein preferably the portion of the longitudinal sealing seam laterally delimiting the ventilation channel has a small thickness, as a section adjoining the outlet opening of the ventilation channel.
  • the venting channel is also limited to the bag interior of the packaging bag by a narrow web of the longitudinal sealing seam.
  • the at least one venting channel optimally in the associated Longitudinal edge to be integrated. In particular, the stability of the longitudinal edge and the visual appearance are virtually unaffected.
  • vent channel integrated in a section of the longitudinal edge is additionally protected in a particularly advantageous manner against kinking or damage.
  • a plurality of longitudinally spaced and mutually independent ventilation channels can be formed at the longitudinal edges of the packaging bag formed as folded edges.
  • the outer layer of the packaging bag is formed from a plastic film, there is also an improved strength, so that when handling the building material packaging bag, for example when throwing or dropping, the risk of bursting is reduced. Due to the tightness of the packaging bag according to the invention can also be prevented that this heavily contaminated on its outside, which is to be avoided in particular for products intended for retail, in terms of product presentation and removal by the consumer. Due to the increased strength of the packaging bag and the risk of unintentional opening is significantly reduced.
  • a handle can also be provided in the packaging bag according to the invention to facilitate transport. The handle can be formed without restriction from the material of the inner and the outer layer, for example by a punched-out, or by a separately attached grip band.
  • tear-open in the form of lines of weakness can be provided.
  • a reclosure for example, a zipper or slider closure, so that after removal of a subset of the contents in the packaging bag remaining fraction still storable over a long period of time.
  • the ingress of moisture and ambient air can be prevented to a certain extent even after initial opening, so that on the one hand clumping and, on the other hand, rapid decomposition of additives, for example chromate reduction, can be avoided.
  • the invention also relates to the use of the above-described packaging bag for cementitious construction chemical products containing water-soluble chromium (VI) compounds and a chromate reducer, which is preferably provided as chromate reducer for cost reasons iron (II) sulfate.
  • a chromate reducer which is preferably provided as chromate reducer for cost reasons iron (II) sulfate.
  • the storage period can be extended from typically 4 months to, for example, 12 or preferably 18 months without exceeding the legally prescribed limit values for the chromate content.
  • chromate reducers in a 7- to 10-fold excess with respect to the complete conversion of the water-soluble chromium (VI) compounds may be disadvantageous in view of the properties of the cementitious construction chemical product, since the addition of the chromate reducer is changed on sulfate carriers. In the context of the present invention, therefore, it may be provided to reduce the added amount of chromate reducer to a maximum of 5-fold excess, preferably to a maximum of 3-fold excess then a storage period is achieved due to the inventive design of the building material packaging bag, which corresponds at least to the otherwise usual storage period.
  • Fig. 1a shows a building material packaging bag according to the invention during the filling with a powdery cement-containing construction chemical product which contains water soluble chromium (VI) compounds and to comply with legal requirements an admixture of a chromate reducer, preferably iron (II) sulfate contains.
  • the building material packaging bag has two front walls 3 formed by an outer layer 1 and an inner layer 2 and side gussets 4 arranged between the front walls 3. In each case between a front wall 3 and a side gusset 4 formed longitudinal edges 5, 5 'are each provided with a longitudinal sealing seam 6, 6'.
  • edges of the overlying outer layer 1 and inner layer 2 are superimposed on one of the longitudinal edges 5 'and there with the continuous Longitudinal seam 6 'connected, wherein the other longitudinal edges 5 are formed as folded edges and the longitudinal sealing seams 6 provided there serve in particular the reinforcement of the building material packaging bag. Since the head-side filling opening 7 is largely filled for fast filling of a hopper 8 a bottling plant, the air contained in the building material packaging bag during the filling process can not easily escape.
  • the inner layer 2 is formed as a perforated polyethylene film, wherein the perforation air passage openings 9 forms, through which the displaced before the poured filling air can reach into a region between the inner layer 2 and the outer layer 1 and there leave the bag through the head-side filler opening 7.
  • the inner layer 2 and the outer layer 1 are connected to each other only in the region of the longitudinal edges 5, 5 'by adhesive 10, wherein the air passage openings 9 are preferably provided only in the non-interconnected areas.
  • the described lamination with adhesive (10) can also be provided to connect the inner layer 2 and the outer layer 1 by heat sealing.
  • the inner layer 2 and the outer layer 1 can be superimposed only immediately upon formation of the bag and then joined by the longitudinal and transverse sealing seams provided for the formation of the bag, thereby eliminating the need for prior lamination or prior heat sealing.
  • the air passage openings 9 can be generated for example by a needling.
  • an additional fixing point 11 between the outer layer 1 and the inner layer 2 is provided at the top of the building material packaging bag, for example can be produced by heat sealing or adhesive.
  • the air passage openings 9 of the inner layer 2 are produced by the needling in such a way that elevations 12 formed on the air passage openings 9 are arranged in the direction of the bag interior and lead to an increase in the surface roughness. This is advantageous in order to achieve a uniform inflow and a uniform distribution during the filling of the powdery filling material.
  • the inner layer 2 is formed as a two-layer film, wherein the arranged on the inside of the building material packaging bag film layer to further increase the friction contains chalk as a filler.
  • the two-layered film can be made, for example, as a polyethylene coextruded film having a thickness of typically 20 to 90 ⁇ m, preferably about 60 ⁇ m.
  • the plastic film provided as the outer layer is also multi-layered and can have, for example, an outer layer 13 of polyester, preferably PET, and a white inner layer 14 of polyolefin, preferably polyethylene, wherein the outer layer 13 can be printed internally before lamination with the inner layer.
  • the outer layer 1 a single or multi-layered films of polyolefin, preferably polyethylene, be provided, resulting in the one hand easy recyclability of the entire building material packaging bag and on the other hand better stackability.
  • the outer layer is provided with an embossment which keeps the inner layer 2 in sections at a distance.
  • a permanent secondary ventilation ie, a slow gas outlet
  • a separate vent valve 15 is provided on one of the front walls 3.
  • 3 separate film strips 16 are provided as handle loops on the front walls. These can be attached depending on the configuration of the outer layer from the outside or via a foil tape 17 from the inside to the outer layer 1.
  • Fig. 2 shows an inventive embodiment of a likewise designed as a gusseted bag building material packaging bag, wherein as before longitudinal edges 5, 5 'are provided, each having a longitudinal sealing seam 6, 6'. Three of the longitudinal edges 5 are formed as folded edges, wherein at these longitudinal edges venting channels 18 are provided, which will be explained in detail below.
  • To the in Fig. 2 To be able to easily carry illustrated building material packaging bag is provided at an upper, sealed portion a Griffausstanzung 19. After removal of the head region along a line of weakness 20, the bag interior is accessible for removal of the powdered cementitious construction chemical product.
  • Fig. 2 To the in Fig. 2 To be able to easily carry illustrated building material packaging bag is provided at an upper, sealed portion a Griffausstanzung 19. After removal of the head region along a line of weakness 20, the bag interior is accessible for removal of the powdered cementitious construction chemical product.
  • venting channel 18 is correspondingly arranged in each case in the region of one of the longitudinal edges 5, which is designed as a folding edge, wherein the venting channels 18 are bounded respectively by the folding edge and in the direction of the bag interior by the longitudinal sealing seam 6.
  • At least one inlet opening 22 of the venting channel 18 is formed in each case by an interruption of the longitudinal sealing seam 6, wherein in each case at least one associated outlet opening 23 of the venting channel 18 is arranged in an offset.
  • Fig. 3a extends the longitudinal sealing seam 6, starting from the inlet opening 22 in a closed building material packaging bag with a substantially constant thickness to the bag bottom to a lower side Cross-seam 24 and to the head of the building material packing bag up to a top-side transverse seam 24 '. Accordingly, the formed vent channel 18 extends substantially over the entire length of the longitudinal edge. 5
  • the Fig. 3b to 3d show embodiments in which the venting channels 18 each extend over a part of the longitudinal edge 5, wherein the longitudinal sealing seam 6 in the region of the respective venting channel 18 has a smaller thickness and in the direction of the bag interior forms a venting channel 18 limiting web 25.
  • the longitudinal sealing seam 6 has a greater thickness and is preferably according to the Fig. 3b to 3d shown embodiments arranged directly on the longitudinal edge 5.
  • the described embodiments are characterized by the fact that the visual appearance and the stability of the longitudinal edges 5 reinforced by the longitudinal sealing seam 6 are not or at least not substantially impaired.
  • the venting channel 18 is also protected by the above and below immediately adjoining sections of the longitudinal sealing seam 6 and the web 25 formed by the longitudinal sealing seam 6.
  • Fig. 3b shows an L-shaped configuration of the vent channel 18 with an inlet opening 22 and with an outlet opening 23.
  • T-embodiments with an inlet opening 22 and two outlet openings 23 (FIG. Fig. 3c ) and C-shaped configurations with two inlet openings 22 and one outlet opening 23 are possible ( Fig. 3d ).
  • venting channels 18 may be provided at a distance from each other.
  • Fig. 4 shows a Kaschierverbund to form a packaging bag according to the invention, which is designed as a gusseted bag.
  • the laminated composite comprises a web of the outer layer 1 and a further film web applied thereon, which forms the inner layer 2 in the packaging bags.
  • the inner layer 2 and the outer layer 1 are laminated in strip-shaped areas 26 by adhesive 10 together and unconnected between these areas 26.
  • air passage openings 9 are produced by needling in the regions which are not laminated with the outer layer 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (13)

  1. Sac d'emballage destiné à contenir des produits pulvérulents, notamment sac d'emballage pour matériaux de construction pour des produits chimiques contenant du ciment, avec deux parois frontales (3) opposées, délimitées par des arêtes longitudinales (5, 5'), ainsi qu'avec une couche intérieure (2) en matière plastique et avec une couche extérieure (1), qui sont assemblées l'une à l'autre sur des parties, pour la désaération primaire de l'intérieur du sac pendant un processus de remplissage avec le produit pulvérulent poudreux, la couche intérieure comprenant des orifices de passage d'air (9) permettant une évacuation rapide et directe de l'air refoulé à travers la couche intérieure (2) et une zone formée entre la couche intérieure (2) et la couche extérieure (1), la couche extérieure (1) étant formée à partir d'un film en matière plastique et pour la désaération durable du sac d'emballage après sa fermeture, une désaération secondaire, permettant une sortie lente des gaz étant prévue sur la couche extérieure (1), caractérisé en ce que dans la zone d'au moins l'une des arêtes longitudinales (5) qui est conçue sous la forme d'une arête de pliage, il est prévu un joint de scellement longitudinal (6) avec un canal de désaérage (18) en tant que désaérage secondaire, le canal de désaérage (18) étant délimité par l'arête de pliage et le joint de scellement longitudinal (6) qui sépare le canal de désaérage (18) de l'intérieur du sac, une interruption du joint de scellement longitudinal (6) formant un orifice d'entrée (22) débouchant à l'intérieur du sac, un orifice de sortie (23) côté extérieur étant disposé en décalage.
  2. Sac d'emballage selon la revendication 1, caractérisé en ce qu'il est prévu un film perforé en tant que couche intérieure (2).
  3. Sac d'emballage selon la revendication 1 ou 2, caractérisé en ce que la couche intérieure (2) conçue en matière plastique comporte au moins sur sa face intérieure dirigée vers l'intérieur du sac une addition d'une matière de charge.
  4. Sac d'emballage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le film en matière plastique formant la couche extérieure (1) comporte un gaufrage.
  5. Sac d'emballage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le désaérage secondaire comporte au moins un élément de soupape monté sur la couche extérieure (1).
  6. Sac d'emballage selon l'une quelconque des revendications 1 à 5, caractérisé en ce que des plis latéraux (4) sont disposés entre les parois frontales (3).
  7. Sac d'emballage selon l'une quelconque des revendications 1 à 6, caractérisé par une poignée de manutention.
  8. Sac d'emballage selon l'une quelconque des revendications 1 à 7, caractérisé par une fermeture réutilisable (21).
  9. Sac d'emballage selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la couche extérieure (1) et la couche intérieure (2) sont assemblées l'une à l'autre sur des parties par un agent adhésif (10).
  10. Sac d'emballage selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la couche extérieure (1) et la couche intérieure (2) sont assemblées l'une à l'autre sur des parties par thermoscellage.
  11. Utilisation d'un sac d'emballage selon l'une quelconque des revendications 1 à 10 pour des produits chimiques contenant du ciment, qui contiennent des composés hydrosolubles de chrome(VI) et un réducteur de chromate.
  12. Utilisation selon la revendication 11, un sulfate de fer(II) étant prévu en tant que réducteur de chromate.
  13. Utilisation selon la revendication 11 ou 12, le réducteur de chromate étant rajouté dans un surplus de maximum 5 fois plus, en rapport d'une transformation complète des composés hydrosolubles de chrome(IV).
EP08019912A 2008-11-14 2008-11-14 Sac d'emballage Active EP2186741B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL08019912T PL2186741T3 (pl) 2008-11-14 2008-11-14 Worek opakowaniowy
AT08019912T ATE497916T1 (de) 2008-11-14 2008-11-14 Verpackungsbeutel
DE502008002575T DE502008002575D1 (de) 2008-11-14 2008-11-14 Verpackungsbeutel
ES08019912T ES2356399T3 (es) 2008-11-14 2008-11-14 Bolsa de envase.
EP08019912A EP2186741B1 (fr) 2008-11-14 2008-11-14 Sac d'emballage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08019912A EP2186741B1 (fr) 2008-11-14 2008-11-14 Sac d'emballage

Publications (2)

Publication Number Publication Date
EP2186741A1 EP2186741A1 (fr) 2010-05-19
EP2186741B1 true EP2186741B1 (fr) 2011-02-09

Family

ID=40521727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08019912A Active EP2186741B1 (fr) 2008-11-14 2008-11-14 Sac d'emballage

Country Status (5)

Country Link
EP (1) EP2186741B1 (fr)
AT (1) ATE497916T1 (fr)
DE (1) DE502008002575D1 (fr)
ES (1) ES2356399T3 (fr)
PL (1) PL2186741T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011002091A1 (de) 2011-04-15 2012-10-18 Nordenia Deutschland Halle Gmbh Verpackung, insbesondere für sauerstoffempfindliche oder feuchtigkeitseempfindliche Produkte
EP2987744A1 (fr) 2014-08-22 2016-02-24 Mondi Consumer Packaging Technologies GmbH Sac d'emballage à soufflet latéral et procédé de fabrication d'un sac d'emballage à soufflet latéral
DE202017103128U1 (de) 2017-05-23 2018-08-24 Bischof + Klein Se & Co. Kg Entlüftbarer Ventilsack
DE102018132343A1 (de) 2018-12-14 2020-06-18 Mondi Ag Kunststofffolienverbund, Kunststoffverpackung sowie Verfahren zur Herstellung eines Kunststofffolienverbundes
DE102018132333A1 (de) 2018-12-14 2020-06-18 Mondi Ag Kunststofffolienverbund, Folienverpackung und Verfahren zur Herstellung von Verpackungsgebinden
EP4342812A1 (fr) * 2022-09-22 2024-03-27 Mondi AG Sac à soufflets latéraux

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120648A1 (it) * 2012-04-18 2013-10-19 Goglio Spa Sacco per il contenimento di prodotti liquidi degasanti, in particolare lievito
EP2792609A1 (fr) * 2013-04-18 2014-10-22 Nordfolien GmbH Récipient d'emballage pour produits en vrac
EP3279107A4 (fr) * 2015-03-30 2018-09-26 Sumitomo Seika Chemicals Co. Ltd. Sac d'emballage et produit emballé
WO2018156308A1 (fr) * 2017-02-21 2018-08-30 The Procter & Gamble Company Procédés de fabrication de récipients souples ventilés
EP3585687A1 (fr) 2017-02-22 2020-01-01 The Procter and Gamble Company Procédés de fabrication de contenants souples avec des cadres de support structural
DE102017001760A1 (de) 2017-02-23 2018-08-23 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Mehrlagiger Sack
US11338975B2 (en) 2018-05-16 2022-05-24 The Procter & Gamble Company Container blanks for flexible packages and methods of making flexible packages
RU200578U1 (ru) * 2019-12-25 2020-10-29 Олег Валерьевич Середенин Вкладыш гибкого контейнера
CN112277431A (zh) * 2020-10-15 2021-01-29 金石包装（嘉兴）有限公司 一种单向排气阀复合袋的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1611667C3 (de) * 1967-08-08 1979-05-31 Fardem-Lissner Gmbh, 4040 Neuss Entlüftbarer Ventilsack
DE1809578A1 (de) * 1968-11-18 1970-07-30 Windmoeller & Hoelscher Sack oder Beutel aus Kunststoffolie mit Be- und/oder Entlueftung durch Perforationen
DE3202032C2 (de) 1982-01-22 1985-10-10 Reuther Verpackung GmbH, 5450 Neuwied Einseitig offener mehrlagiger Beutel zur Aufnahme pulverförmiger Füllgüter
US6827492B2 (en) * 2001-12-05 2004-12-07 Leland B. Cook One-way concealed-valve vented storage bag
WO2008058079A2 (fr) * 2006-11-06 2008-05-15 Marko I.R.D.C. Sac en plastique avec structure optimisée d'évacuation d'air

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011002091A1 (de) 2011-04-15 2012-10-18 Nordenia Deutschland Halle Gmbh Verpackung, insbesondere für sauerstoffempfindliche oder feuchtigkeitseempfindliche Produkte
DE102011002091B4 (de) * 2011-04-15 2016-09-15 Nordenia Deutschland Halle Gmbh Verpackung, insbesondere für sauerstoffempfindliche oder feuchtigkeitseempfindliche Produkte
EP2987744A1 (fr) 2014-08-22 2016-02-24 Mondi Consumer Packaging Technologies GmbH Sac d'emballage à soufflet latéral et procédé de fabrication d'un sac d'emballage à soufflet latéral
DE202014010749U1 (de) 2014-08-22 2016-07-13 Mondi Consumer Packaging Technologies Gmbh Seitenfaltenverpackungsbeutel
DE202017103128U1 (de) 2017-05-23 2018-08-24 Bischof + Klein Se & Co. Kg Entlüftbarer Ventilsack
WO2018215560A1 (fr) 2017-05-23 2018-11-29 Bischof + Klein Se & Co. Kg Sac à valve se prêtant au vide
DE102018132343A1 (de) 2018-12-14 2020-06-18 Mondi Ag Kunststofffolienverbund, Kunststoffverpackung sowie Verfahren zur Herstellung eines Kunststofffolienverbundes
WO2020120146A1 (fr) 2018-12-14 2020-06-18 Mondi Ag Film complexe de plastique, emballage plastique et procédé de fabrication d'un film complexe de plastique
DE102018132333A1 (de) 2018-12-14 2020-06-18 Mondi Ag Kunststofffolienverbund, Folienverpackung und Verfahren zur Herstellung von Verpackungsgebinden
EP4342812A1 (fr) * 2022-09-22 2024-03-27 Mondi AG Sac à soufflets latéraux
WO2024061652A1 (fr) * 2022-09-22 2024-03-28 Mondi Ag Sac à soufflets latéraux

Also Published As

Publication number Publication date
PL2186741T3 (pl) 2011-07-29
ES2356399T3 (es) 2011-04-07
DE502008002575D1 (de) 2011-03-24
EP2186741A1 (fr) 2010-05-19
ATE497916T1 (de) 2011-02-15

Similar Documents

Publication Publication Date Title
EP2186741B1 (fr) Sac d'emballage
EP3092179B1 (fr) Sac en papier
WO2006092335A1 (fr) Sachet en papier
EP1813545B1 (fr) Sac multicouche en papier
DE202007019079U1 (de) Folienverpackungsbeutel
EP2301859A1 (fr) Sachet à fond plat à partir d'une feuille de plastique pouvant être scellée à chaud et son procédé de fabrication
DE102004013469A1 (de) Mehrwandiges, sackförmiges Verpackungsmittel
WO2008119414A1 (fr) Sac à valve en papier à élément de fermeture intérieur
EP2792609A1 (fr) Récipient d'emballage pour produits en vrac
DE102015006212A1 (de) Papiersack und Herstellungsverfahren für einen Papiersack
EP2345595B1 (fr) Sac d'aération doté d'un dispositif d'aération
EP2186742B1 (fr) Sac d'emballage en film, en particulier pour matière de remplissage poudreuse et poussiéreuse
DE202013004058U1 (de) Papiersack
DE102019100193A1 (de) Mehrlagiger Sack
EP2905236B1 (fr) Sac à fond croisé doté d'une poignée de transport, d'un verrou intérieur et de languettes de déchirage
DE102007022400A1 (de) Gebinde
EP2684814B1 (fr) Sac d'aération doté d'une poche d'aération
EP3129301B1 (fr) Sac en matériau non-tissé et son procédé de fabrication
DE202006020303U1 (de) Verpackungsbehältnis
DE102019117938A1 (de) Doppelwandige Auskleidung für einen flexiblen Schüttgutbehälter, insbesondere FIBC, sowie Herstellungsverfahren für eine solche doppelwandige Auskleidung
EP3858755B1 (fr) Sachet à pliure latérale
DE102008007384A1 (de) Verpackung, insbesondere für pulverförmiges, staubendes Füllgut, und Folie zur Herstellung einer solchen Verpackung
EP3385189B1 (fr) Sac à valve empilable
DE102008035700A1 (de) Verpackung aus Kunststofffolie
DE102015122961A1 (de) Luftkammer-Folienverpackung sowie Verfahren zur Herstellung einer Luftkammer-Folienverpackung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20091027

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502008002575

Country of ref document: DE

Date of ref document: 20110324

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008002575

Country of ref document: DE

Effective date: 20110324

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2356399

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20110407

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110209

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110609

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110509

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110510

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110509

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E011079

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20111110

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008002575

Country of ref document: DE

Effective date: 20111110

BERE Be: lapsed

Owner name: NORDENIA DEUTSCHLAND HALLE G.M.B.H.

Effective date: 20111130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111114

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 497916

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131114

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20141126

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131114

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20141022

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151115

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151114

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: HU

Payment date: 20221117

Year of fee payment: 15

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230512

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231123

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20231124

Year of fee payment: 16

Ref country code: FR

Payment date: 20231120

Year of fee payment: 16

Ref country code: DE

Payment date: 20231023

Year of fee payment: 16