• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:ES2548270T9
    申请号:ES12788418.7T
    申请日:2012-10-08
    公开日:2015-11-24
    发明作者:Olaf BÖCKMANN；Sven BRINKMANN
    申请人:Nordfolien GmbH；
    IPC主号:
    专利说明:

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    DESCRIPTION
    Air purgeable packaging container
    The invention relates to a packaging container for bulk products, especially a sack or plastic film bag, with at least one container wall, surrounding the bulk product and having an air purge zone of several layers, which extends in the longitudinal direction of the container, formed by at least one inner layer and one outer layer, the air purge zone having an inner hole and an outer hole, the inner holes being configured as holes in a strip-shaped surface area of an inner layer of the air purge zone, the surface area extending over a predetermined section in the direction of the extension of the air purge zone and the at least one outer hole being configured in a joint seam, which laterally limits the air purge zone, being assigned to the outer hole located in the joint seam inside the air purge zone an elem shielding means for the defined deflection of at least a partial current of the air stream, which crosses the air purge zone, the shield element and the outer hole being arranged in at least one end zone of the air purge zone air and terminating the shielding element directly in a transverse seam, which limits the air purge zone.
    Packaging containers of the kind indicated above are used, as is known, to collect bulk or loose products, such as food, fertilizers and similar products. These bulk products are manufactured among others in the food products industry or in the chemical industry or are needed for transformation into a production process. With the help of the packaging containers, it is possible to transport, store or, in the case of an end product, sell the packaged products, respectively the bulk products.
    From DE 10 2007 022 400 A1 a packaging container according to the indicated gender is known. The air purge device described therein has an air purge channel with two separate chambers connected to each other by means of an overflow hole, the inner air bleed hole in the first chamber and the outer purge hole being provided. of air in the second chamber.
    Document DE 20 2006 020 303 U1 describes a packaging container with walls, which in a two-layer flat air outlet zone form a passage zone for an air outlet. The passage zone is subdivided into several chambers joined together by at least one passage opening, in which the inner holes, respectively the outer holes are arranged spaced apart from each other.
    From DE 10 2004 013 469 A1, another packaging container of a flexible film of plastic material is known and is used to wrap products in powder form. The packaging container comprises at least one container wall, which surrounds the bulk product and which has multi-layer air purge areas, which extend in the longitudinal direction of the container and formed by at least one inner layer and one layer. Outside with a single camera. In order to guarantee the purge of air inside the container, for example during the filling process, the air purge zone is provided with at least one inner hole and one outer hole. The inner holes are configured here primarily as holes in a strip-shaped area of the surface of the inner layer of the air purge zone, so that air can escape from inside the container between the inner layer and the Exterior. The surface area provided with holes extends in this case approximately over the entire height of the air purge zone. In a joint seam, which laterally limits the air purge zone, at least one outer hole is provided through which the air that has penetrated between the layers can be evacuated to the environment. This ensures a safe air purge, but in the case of products to be packaged in the form of a relatively fine powder, it can already occur during the filling process or a pressing process of the packaging container after filling, an escape from the packaged product from the container.
    Another packaging container with a multi-layered wall area, which for air purging of the packaging container has layers with an air-permeable surface part is known from DE 10 2006 017 229 A1. Between the layers there is arranged a conduction organ in such a way that at least the part of the air permeable surface is covered, in order to avoid the escape in powder form of the packaged product.
    The invention is based on the problem of improving a packaging container of the kind indicated above in the sense that the packaging container has an especially simple construction and the escape of packaged product through the air purge zone is especially small .
    The solution of the problem takes place according to the invention with a packaging container with the characteristics of claim 1. The improvements and advantageous configurations of the invention are set out in the dependent claims.
    In a packaging container for bulk products, especially a sack or a plastic film bag, with at least one container wall, surrounding the bulk product and having a multi-layer air purge zone, extending in the longitudinal direction of the container, formed by at least one inner layer and one outer layer, the air purging zone having at least one inner hole and one outer hole,
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    the inner holes being configured as holes in a strip-shaped surface area of an inner layer of the air purge zone and the surface area extends at least over a section in the direction of the extent of the purge zone of air and with the at least one outer hole being configured in a joint seam, which laterally limits the air purge zone I to the outer hole located in the joint seam inside the evacuation zone, a shielding element is assigned for the defined deflection of at least a partial current of the air stream, which crosses the air purge zone, the shielding element and the outer hole being arranged in at least one final zone of the air purge zone and ending The shielding element directly in a transverse seam, which limits the air purge zone, is provided according to the invention, that the air purge zone only has a chamber in which the exactly one shielding element separates the inner and outer holes from each other and has a length in the range between 10% and 50% of the total length of the air purge zone, so that the partial current diverted in The free end of the shielding element is connected to at least one other partial current, which passed through surface elements of the inner layer, which are not in the area of the shielding element.
     With the configuration of the air purge zone with a single chamber in which a relatively short shielding element is provided, the packaging container and especially the air purge zone are considerably simplified. With the configuration according to the invention of the air purge zone, only a very small escape of packaged product also takes place.
    With the help of the shielding element, which especially separates the exit hole in the seam joining the holes arranged immediately next to it in the strip-shaped surface element, the direct passage of the air stream is eventually prevented loaded with particles from the packaged product and thereby an unwanted escape of particles from the packaged product. At least the air stream, which passes through the inner layer in the surface elements close to the outlet orifice is thus deflected in a defined manner, so that this partial stream of the air stream, which crosses the area of Air purge has to travel a prolonged air purge path favorably between the inner hole and the outer hole. Due to the longer air purge path between the layers, a large part of the packaged product particles eventually entrained with the air flow from the interior to the air purge zone is separated from the air stream. The flow of air, which passes through the outlet orifice, carries with it at least a negligible small amount of particles or, at best, no longer carries any particles with it. The use according to the invention of a shielding element makes it possible advantageously a narrow configuration of the air purge zone, which results in a material saving. The strip-shaped surface element provided with the inner holes can be extended, for example, over the entire height of the air purge zone. The shielding element inside the air purge zone can be configured, for example, with a piece of plastic material film material used for example for manufacturing the packaging container, which is fixed to the inner and outer layers extending in the longitudinal direction. As a container wall, a film of weldable plastic material on both sides or a film made of plastic material can be applied in particular. In addition, the air purge zone of the packaging container can be constructed by for example superimposing the two longitudinal edges of a film strip folded in its longitudinal direction. It is also possible to imagine that a strip of film is applied to a film hose manufactured with the extrusion process. The longitudinal edges of the film strip, respectively of the film strip attached to the film hose are joined together with the help of weld seams or glued joints.
    According to an improvement of the invention, it is provided that the shielding element is a section of the seam, which separates the outer holes of a surface element arranged in the immediate proximity of the strip-shaped surface element provided with holes of the inner layer The configuration as a seam section represents an advantageously simple possibility for the configuration of the shielding element, the inner and outer layers of the air purge zone being connected directly to each other by means of the seam section. This creates separate areas in the air purge zone, which nevertheless only forms a chamber. The strip-shaped surface element with its holes extends especially along one side of the seam section. On the opposite side of the seam section, at least one exit hole in the seam seam is provided at a predetermined distance from it. It is also possible to imagine that several exit holes are provided in the corresponding seam through which a correspondingly large air flow can escape.
    In this case, the shielding element extends preferably in the longitudinal direction of the container and thereby parallel to the longitudinal sludge and the lateral seams connecting the air purge zone, which also extends in the longitudinal direction of the container. With the parallel orientation of the shield element in relation to the longitudinal sides of the air purge zone, zones with the same cross-section are created in particular on both sides along the shield element. This has the advantage that an advantageously safe air purge function is guaranteed, thereby not creating a bottleneck for the air flow, which passes through the air purge zone. In this case, it can be imagined that the cross sections on both sides of the shielding element have the same size. The area formed between the outer hole and the shielding element may eventually have a smaller cross-section than the area along the other longitudinal side of the shielding element.
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    The shielding element and the outer hole are arranged in at least one end zone of the air purge zone, the shield element terminating directly in a transverse seam, which limits the air purge zone. The configuration of the shielding element in the final zone of the air purge zone has the advantage that, especially in the case of a forced air purge of the packaging container after the packaging process and closing by means of a pressure band, the packaging container can be purged of air for a relatively large time, without running a risk of large deterioration, such as tearing of the packaging container. The air purged packaging container can then be stacked optimally for further transport. For example, it is possible that the shielding element is weakened, respectively showing a weakening in a section of its extension, so that especially during the subsequent air purge a deterioration of the sack is advantageously excluded. In a shielding element configured as a separation seam, for example, in a section of the separation seam, a weakening means applied in part and thereby weakening the joint can be provided, such as a separation lacquer. The joint of the separation seam is then canceled or interrupted above a certain pressure in the air purge zone and the overpressure can be reduced through the weakening point and the outer hole. In a shielding element arranged in the final zone of the air purge zone, this weakening takes place approximately in the area close to the transverse seam. However, any provision of weakening can also be imagined. The air purge zone can be extended preferably over the entire height of the packaging container, so that the seams, which close the air purge zone, form at the same time the upper and lower closing seams of the packaging container .
    The shielding element preferably configured as a seam section is arranged directly together and parallel to the corresponding surface element of the strip-shaped element, which has the holes. With this, the partial current of the air stream is diverted, which enters the air purge zone through the holes arranged adjacent to the shielding element, first directly in the longitudinal direction of the air purge zone. At the free end of the shielding element there is a change in direction of approximately 180 ° of the partial current conducted along the shielding element, the partial current being joined with at least one other partial current, which has penetrated through elements of surface of the inner layer, which is not in the area of the shielding element. The additional partial current thus circulates relatively rectilinearly in the direction towards the outer hole in the joint seam. By means of a relatively large change in the direction of one of the partial currents at the free end of the shielding element, an automatic separation of the particles of packaged product may be carried out, due to its mass inertia. In addition, with the change of direction of the partial current, swirls of the air take place, which further improve the separation process, respectively of expulsion of the particles. At the same time, the particles of packaged product separated from the diverted partial stream collide with particles from the air stream, which passes through the air purge zone. This results in the particles deviating from each other with greater intensity and that the air flow, which flows out of the outer hole is relatively free of particles.
    The arranged shielding element, respectively formed inside the air purge zone, has a length of at least 10% of the total height of the air purge zone. This ensures that the outer hole of the air purge zone is sufficiently distant from the free end of the shielding element. Thereby, there is a sufficiently long path between the free end of the shielding element and the outer hole in which the air stream can still lose the particles of packaged product still entrained.
    In order not to unnecessarily impede the function of purging air in the packaging container or even generating additional resistance to the air flow, which crosses the air purge zone, the shielding element only has a maximum length of 50% of the total height of the air purge zone. With an air purge zone, which extends over the total height of the packaging container, the shielding element has a length of about it. 50% of the height of the packaging container. The length of the shielding element is thereby in the range between 10% and 50% of the height, respectively the length of the air purge zone.
    In addition, it is envisaged that the outer hole is configured by means of an interruption of a lateral joint seam, joining together by means of the joint seam the overlapping layers of the air purge zone. The interruption of the joint seam, which laterally limits the air purge zone, represents a simple constructive possibility for the configuration of the necessary outer hole. In this connection, for example, in the case of a seam of seam with a welding process, the tool, which generates the seam of seam, provides a recess in the areas provided for the interruption of the weld bead, so , that the overlapping layers of the air purge zone remain unbound. For the configuration of the outer hole, several interruptions arranged with a small gap between them can be provided in the seam. Especially in the case of a packaging container formed from a flat strip of film, whose air purge zone is obtained by superimposing the areas of the edge of the film strip, interruptions in the seam of union, which joins the edge edge of the superimposed upper longitudinal edges of the film with the edge located below.
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    Alternatively, it is anticipated that the outer hole is formed by means of at least one weakened section of the lateral joint seam. For this purpose, it can be applied on a surface element assigned to the outer hole of at least one of the surfaces oriented against each other of the inner and outer layer of the air purge zone assigned to the outer hole, such as a separation lacquer, before building the air purge zone. As a result, the superimposed layers form in this surface element provided with the weakening means a manifestly reduced material joint when constructing the continuous joint seam. The union of material can already be annulled, when a packaging container closed completely after filling by means of transverse seams at its end is conducted through a pressure or crushing tape to expel the air contained in the packaging container.
    According to another refinement, it is envisaged that the multi-layer air purge zone is provided between the at least one inner layer and an outer layer at least in partial areas of spacers. With the use, respectively, the configuration of spacers between the layers of the air purge zone advantageously improves the escape of the interior of the air container, which penetrates together with the product to be packaged in the packaging container. With the spacers, the possible adhesion forces between adjacent surfaces of the superimposed layers of the air purge zone can be avoided in particular, since these intermolecular forces of attraction make it difficult for the air stream to pass through the area air purge The spacers are configured as embossing in at least one of the overlapping layers. With these embossments a simple constructive possibility is created to maintain a certain separation between the layers. Embossing can be configured both by zones, as well as in one of the layers extending over the entire length and width of the air purge zone.
    A possible embodiment of the packaging container according to the invention is shown in the drawing, resulting in additional innovative features.
    The single figure shows a perspective view of a packaging container according to the invention, which can be purged of air.
    With 1 a sack with side fold is designated, which has a container wall 2, which surrounds the packaged product. The sack 1 with side fold also has a front wall 3 formed with the wall 2 of the container, a rear wall 4 as well as two side walls 5, 6 with side folding. On the wall of the bag 1 there is provided an air purge zone 7 configured with several layers with an inner layer 8 and an outer layer 9. To carry out the air purge function, it has the air purge zone 7, which only has a chamber, inner holes 10, 10 'and at least one outer hole 11. The inner holes 10, 10 'are holes formed in the inner layer 8 and in a surface element 12 of the inner layer 8. The surface element 12 extends in this case over the entire height of the air purge zone 7. The outer hole 11 is configured in one of the joining seams 13, 14, which laterally limit the air purge zone 7. Inside the air purge zone 7 there is a shielding element 15, which is assigned to the outer hole 11 in such a way that a defined deviation of at least a partial current is provided, which passes through the zone 7 of air purge The shielding element 15 is a seam section 16, extending parallel to the side joining seams 13, 14 and separating the outer hole 11 from a surface element 12 'immediately adjacent to the outer hole, of the surface element 12 shaped like a fringe, which has holes. Both the shielding element 15, as well as the outer opening are arranged in an end zone of the air purge zone 7, limiting the shielding element 15 directly perpendicularly in a transverse seam 18, which limits the purge zone 7 of air and close the bag 1 with lateral fold in the upper end. With the aid of the transverse seam 19, the lower end of the bag 1 is closed. The shielding element 15 in this case has a length of at least 10% and a maximum of 50% of the total height of the purge zone 7 of air. The outer hole 11 is especially configured as an interruption of the lateral joint seam 13, the outer layer 9 being fixed on the inner layer 8 by means of the joint seams 13, 14. The bag 1 with side fold can be manufactured in this case from a film strip or a hose. In the case of the film strip, its edge areas are folded in such a way that they give rise to the inner layer 8 and the outer layer 9 of the air purge zone 7. In the case of a film hose, a separate strip of film, which forms the outer layer, is preferably placed on its outer side. To ensure an undisturbed circulation of air inside the air purge zone 7, spacers 20, 20 'are provided on the outer side of the inner layer 8. The spacers can also be shaped on the inner side of the outer layer 9.
    权利要求:
    Claims (8)
    [1]
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    1. Packaging container for bulk products, especially a sack or plastic film bag, with at least one container wall (2), which surrounds the bulk product and which has a purge zone (7) multi-layer air, which extends in the longitudinal direction of the container, formed by at least one inner layer
    (8) and an outer layer (9), the air purging zone (7) having at least one inner hole and one outer hole (10, 10 ', 11), the inner holes (10,10') being configured as holes in a strip-shaped surface element (12) of the inner layer of the air purge zone, the surface element (12) extending at least over a predetermined section in the direction of the extension of the area of air purge and the at least one outer hole (11) being configured in a joint seam (13), which laterally limits the air purge zone (7), being assigned to the outer hole (11) located in the seam ( 13) connecting a shielding element (15) inside the air purge zone for the defined deflection of at least a partial current of the air stream, which crosses the air purge zone (7), being the shielding element (15) and the outer hole (11) are arranged in at least one end zone (17) of the zone of air purging and terminating the shielding element (15) directly in a transverse seam (18), which limits the area (7) of air purging,
    characterized by that
    the air purge zone (7) has a single chamber in which exactly one shielding element (15) separates the inner and outer holes (10, 10 ', 11) from each other and has a length in the range between 10% and 50% of the total length of the air purge zone (7), so that the partial current diverted at the free end of the shielding element (15) is combined with at least one other partial current, which passed through the surface elements of the inner layer (8), which are not in the area of the shielding element (15).
    [2]
    2.  Packaging container according to claim 1, characterized in that the shielding element (15) is a section (16) of the seam, which separates the outer hole (11) of a surface element (12 ') arranged immediately adjacent to the element (12) of strip-shaped surface.
    [3]
    3. Packaging container according to one of claims 1 and 2, characterized in that the shielding element (15) extends approximately in the longitudinal direction of the container.
    [4]
    Four. Packaging container according to one of claims 1 to 3, characterized in that the shielding element (15) is arranged directly adjacent and parallel to the surface element (12 ') of the strip-shaped surface element (12), which contains the holes.
    [5]
    5. Packaging container according to one of claims 1 to 4, characterized in that the shielding element (15) has a length of at least 5% of the entire height of the air purge zone (7).
    [6]
    6. Packaging container according to one of claims 1 to 5, characterized in that the outer hole (11) is formed by means of at least one interruption of the lateral joint seam (13), the overlapping layers of the area (7) being joined ) of air purge by means of the seam (13, 14) of union.
    [7]
    7. Packaging container according to one of claims 1 to 5, characterized in that the outer hole (11) is formed by means of at least one weakened section of the lateral joint seam (13).
    [8]
    8.  Packaging container according to one of claims 1 to 7, characterized in that the multi-layer air purge zone (7) is provided with spacers (20, 20 ') between the inner layer (8, 9) and the outer layer .
    6
    类似技术:
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    ES2548270T3|2015-10-15|Air purgeable packaging container
    ES2436769T3|2014-01-07|Bag and procedure for manufacturing it
    RU2409506C2|2011-01-20|Package for loose materials, in particular, bag of synthetic film
    ES2283276T3|2007-11-01|ASSEMBLY OF SLIDING CLAMP AND METHOD TO APPLY THE SAME ON A TUBULAR FILM IN A FORM-FILL-SEALING MACHINE.
    ES2863655T3|2021-10-11|Packaging sleeve, container and procedure for the manufacture of a container
    ES2276507T3|2007-06-16|TRANSVERSAL SLIDING CLOSURE SYSTEM.
    ES2226718T3|2005-04-01|APPLICATION OF MEANS OF CLOSURE TO A CONTAINER.
    ES2384067B1|2013-05-07|PROCEDURE AND MACHINE FOR MANUFACTURING CONTINUOUS FLEXIBLE MATERIAL CONTAINERS.
    ES2662860T3|2018-04-10|Procedure for manufacturing a side fold bag
    ES2347699T3|2010-11-03|SIDE FOLDING BAG.
    ES2645523T3|2017-12-05|Packaging machine and procedure for filling open bags
    ES2368537T3|2011-11-18|PACKING CONTAINER.
    ES2354381T3|2011-03-14|OPEN SACK OF SIDE FOLDINGS MADE OF A SOLDABLE MATERIAL.
    US4844956A|1989-07-04|Product made up of a roll of valved synthetic resin bags, with transversal weldings and pre-established separation lines, for filing the bags before separation
    ES2557469T3|2016-01-26|Packaging container for filling products
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    ES2627927T3|2017-08-01|Container container with ventilation function
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    ES2284340B1|2008-09-16|CONTINUOUS TUBULAR FOR THE FORMATION OF HORTOFRUTICOLAS PRODUCT CONTAINER BAGS.
    ES2603649T3|2017-02-28|Packing for refillable products
    ES2247303T3|2006-03-01|CIGARETTE PACK AND PROCEDURE AND DEVICE FOR THE MANUFACTURE OF THE SAME.
    ES2354759T3|2011-03-17|PACKAGING BAG MADE OF MOVIE MATERIAL, ESPECIALLY FOR A PULVERULENT LOADING PRODUCT THAT DISPOSES POWDER.
    ES2600306B1|2017-11-17|MIXED CONTINUOUS TUBULAR FOR THE FORMATION OF BAGS, AND BAG FOR HORTO FRUIT OR SIMILAR PRODUCTS OBTAINED FROM THE SAME
    ES2325969T3|2009-09-25|PACKAGING FOR BULK PRODUCTS AND MANUFACTURING PROCEDURE OF SUCH PACKAGING.
    ES2681644T3|2018-09-14|Device and procedure for packing products in an aluminum foil device, package produced and loaded using the procedure
    同族专利:
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    DK2763906T3|2015-10-12|
    HUE025180T2|2016-02-29|
    US9156591B2|2015-10-13|
    EP2763906B1|2015-07-01|
    PL2763906T3|2015-11-30|
    CA2850971A1|2013-04-11|
    ES2548270T3|2015-10-15|
    MY166094A|2018-05-24|
    US20140241649A1|2014-08-28|
    EP2763906A1|2014-08-13|
    AU2012320946A1|2014-04-17|
    AU2012320946A2|2014-05-01|
    RU2014117948A|2015-11-20|
    AU2012320946B2|2016-10-20|
    WO2013050025A1|2013-04-11|
    DE202011106386U1|2011-11-18|
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    DE102004013469A1|2004-03-18|2005-10-06|Wacker Polymer Systems Gmbh & Co. Kg|Multi-walled, bag-shaped packaging material|
    US7543708B2|2004-08-23|2009-06-09|United States Gypsum Company|Plastic bag for fine powders|
    DE102006017229B4|2006-04-12|2008-06-05|Nordfolien Gmbh|Packaging for bulk goods, in particular bags of plastic film|
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    DE202012006946U1|2012-07-18|2012-08-22|Nordfolien Gmbh|Packaging container with ventilation function|US9555947B2|2012-05-31|2017-01-31|Berry Plastics Corporation|Vented steam cooking package|
    DE202012006946U1|2012-07-18|2012-08-22|Nordfolien Gmbh|Packaging container with ventilation function|
    DE202014007340U1|2014-09-15|2015-12-18|Bischof + Klein Gmbh & Co. Kg|Flexible packaging container|
    US20180236741A1|2017-02-21|2018-08-23|The Procter & Gamble Company|Methods of making vented flexible containers|
    US11111036B2|2017-02-22|2021-09-07|The Procter & Gamble Company|Methods of making flexible containers with structural support frames|
    US11167897B2|2019-10-16|2021-11-09|Charlotte Squires|Contaminant resistant product packaging|
    US11167896B2|2019-12-09|2021-11-09|Charlotte Squires|Contaminant resistant product packaging|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202011106386U|DE202011106386U1|2011-10-06|2011-10-06|Ventable packaging container|
    DE202011106386U|2011-10-06|
    PCT/DE2012/000981|WO2013050025A1|2011-10-06|2012-10-08|Packaging container that can be ventilated|
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