EP1981768B1 - Sac et son procédé de réalisation - Google Patents

Sac et son procédé de réalisation Download PDF

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Publication number
EP1981768B1
EP1981768B1 EP07702653.2A EP07702653A EP1981768B1 EP 1981768 B1 EP1981768 B1 EP 1981768B1 EP 07702653 A EP07702653 A EP 07702653A EP 1981768 B1 EP1981768 B1 EP 1981768B1
Authority
EP
European Patent Office
Prior art keywords
bag
ventilation
ventilation duct
openings
ventilation openings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07702653.2A
Other languages
German (de)
English (en)
Other versions
EP1981768A1 (fr
Inventor
Rüdiger Grosse-Heitmeyer
Thomas Knoke
Martin Kölker
Ludger Schulten
Hans-Ludwig Voss
Jan Thorsten Weber
Thomas Hawighorst
Holger Frische
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to EP13186707.9A priority Critical patent/EP2690030A3/fr
Priority to PL07702653T priority patent/PL1981768T3/pl
Publication of EP1981768A1 publication Critical patent/EP1981768A1/fr
Application granted granted Critical
Publication of EP1981768B1 publication Critical patent/EP1981768B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/003—Flexible containers made from webs starting from tubular webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/855—Forming valves integral with the containers
    • B31B70/857—Forming valves integral with the containers by deforming the bag, e.g. stretching

Definitions

  • the invention relates to a bag according to claim 1 and a bag making method according to claim 18.
  • Sacks are known, which are produced and filled according to the so-called FFS (FFS Form Fill and Seal) method. This procedure is used inter alia in the DE 199 204 78 described.
  • FFS FFS Form Fill and Seal
  • a film tube is unwound from an unwinding device and fed to an FFS machine, in which the film tube is first separated into sacks by transverse cutting welds.
  • These bags are detected by suitable gripping devices, filled in a filling station, closed by another cross-welding and thus discharged as filled and sealed bags from the machine.
  • bags are usually provided with perforations.
  • perforations or perforations of the bag outer wall have the disadvantage that they lead to leakage, in particular of the fine filling material.
  • the EP 0 768 254 A1 and EP 1 600 399 A1 which discloses a bag according to the preamble of claim 1, to provide a bag with a vent channel, which is formed of two film layers.
  • the one film layer has first vents to the bag interior and the other second vents to the atmosphere.
  • the object of the present invention is to propose a bag in which the ratio between ventability and possible loss of filling material is improved in the closed state.
  • At least one second venting channel is provided, which is connected to the first channel through second venting openings and which in turn has third venting openings which vent the at least one second venting channel.
  • the direct connections of the first venting channel to the atmosphere can often be saved by this measure, without the ventability of the bag falling below the required level.
  • the outer film layer may be provided with a less permeable perforation than the first film layer.
  • At least one second venting channel is provided in addition to the at least one first venting channel.
  • the ordinal numbers first, second and later third vent channel depend on the order in which the air escaping from the interior of the bag flows through the channels on their way into the atmosphere - that is, the outer space.
  • the at least one second venting duct generally has at least areas without direct connections to the interior of the bag. In this way, the connections to the interior of the bag are spaced from the vents to the atmosphere along the bag surface, which increases the tightness. Direct connections to the interior of the bag are preferably either no longer present in the at least one second venting channel or limited to the areas in which the axes of the first and second channels intersect. The same applies to the third and further venting channels in relation to the second.
  • a venting channel here is an at least partially delimited space.
  • vents should be in the crossing region of the two channels either from the first to the second or from the second to the third channel or to the atmosphere. If there are vents from the first to the second channel in or near the crossing area, it is advantageous to space the openings from the second to the third channel or to the atmosphere thereof.
  • the gusset area can be used for this purpose.
  • connection openings between the bag interior and the at least first ventilation channel are the first ventilation openings
  • the connections between the at least one first ventilation channel to the at least second are the second ventilation openings and so on.
  • the at least one first ventilation channel runs parallel to the at least one second ventilation channel, it is advantageous that the longitudinal weld seams required for the formation of the two channels are already introduced into double film layers during tube formation.
  • the vents connecting the first and the second channel should then be designed as interruptions of this weld.
  • Another advantageous possibility is a largely orthogonal arrangement of the first and second channels to each other. It is clear that manufacturing tolerances, but also acute-angled angles between the channel axes are still covered by the word "largely”. It is particularly advantageous to provide channels at a sack end so that a wall or boundary of the relevant channel can already be formed by a final weld. The other wall can then be formed by a transverse weld. Such channels may be first, second or even third venting channels.
  • the other bag end can be designed in the same way. In general, symmetrical bag designs should be preferred.
  • vents come, as already mentioned, interruptions in separating welds in question. Further advantageous vents are holes that can come through punches and perforations to conditions. Often, micro-perforations will be beneficial.
  • microperforation is understood to mean above all those perforations whose diameter is smaller than the average or the smallest particle size of the filling material.
  • Filter here means all types of felt-like or stoffartigem material - whether "woven” (woven) or “nonwoven” (non-woven) - understood that on the one hand is permeable to air, but on the other hand dust-like solids can stop.
  • a bag according to the invention can advantageously be combined with elements of the FFS method in many ways.
  • the ventilation ducts extending along the hose axis are already produced during tube formation on a tube former. If then bags with a second are made largely parallel to the first channel extending second vent channel, it is possible to install the necessary transverse seams on the tube former or on the FFS machine. Since the FFS machine works at least partially intermittently, it is better to form the transverse welds here. This can be done by an advantageous (double) welding tool.
  • FIG. 5 shows the section DD FIG. 5 merely showing that the second venting channel 140 is arranged between the top seam 11 and the further transverse weld seam 15.
  • FIG. 6 is the cut BB off FIG. 4 which shows the overlap area between the two venting channels 20 and 140.
  • the openings 200 could again be indicated only by arrow and reference numerals.
  • the reference numeral 210 the bag interior is provided. By the arrow 9, the interruptions of the weld 150 are indicated again. Objects behind the cutting plane were not shown.
  • FIG. 7 is the cut CC off FIG. 4 illustrated in which the arrows 260 symbolize the air flows in the second vent channel 140, which come through the air flow through the introduced into the inner boundary wall 40, but not shown here openings 200 to conditions.
  • the Arrows 250 symbolize the flow of air from the outlet openings 120 to the atmosphere.
  • both ends of a bag can be equipped with the bag ends shown.
  • FIG. 8 shows a further embodiment of a bag 29 according to the invention, in which two substantially parallel venting channels 20 and 21 are provided, which are bounded by the longitudinal seams 26, 27 and 28.
  • the first vent channel 20 communicates with the interior of the bag via the first vent openings 22 and in turn is vented via the indicated by the rectangle 23 second vent openings 23 in the second vent passage 21.
  • This 21 has vents 24 to the atmosphere.
  • the bag 29 is formed from a piece of hose and closed by Endabsch spasch spas 22.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)

Claims (21)

  1. Sac (220), lequel est formé à partir d'un film tubulaire (101) au moyen de premiers joints de soudure transversaux (110, 150) et lequel sac (220) est pourvu d'au moins un premier canal d'aération (20) qui s'étend dans une large mesure parallèlement à l'axe du film tubulaire (101) et dont la couche de film intérieure (40) comprend des premières ouvertures d'aération pour l'aération de l'intérieur du sac (210) dans le premier canal d'aération (20),
    caractérisé en ce
    qu'au moins un deuxième canal d'aération (140) est prévu, lequel est relié au premier canal d'aération (20) par des deuxièmes ouvertures d'aération (90, 100, 200) et comprend pour sa part des troisièmes ouvertures d'aération (120) qui aèrent ledit au moins un deuxième canal d'aération (140).
  2. Sac selon la revendication 1,
    caractérisé en ce que
    ledit au moins un deuxième canal d'aération (140) s'étend dans une large mesure parallèlement au premier canal d'aération (20).
  3. Sac selon la revendication 1,
    caractérisé en ce que
    ledit au moins un deuxième canal d'aération (140) s'étend dans une large mesure de manière orthogonale au premier canal d'aération (20).
  4. Sac selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins un deuxième canal d'aération (140) est prévu à au moins une extrémité du sac, et en ce que la soudure d'extrémité (110) du sac à cette extrémité du sac limite ledit au moins un deuxième canal d'aération (140).
  5. Sac selon la revendication précédente,
    caractérisé en ce
    qu'au moins un deuxième canal d'aération supplémentaire (140) est prévu à l'autre extrémité du sac.
  6. Sac selon l'une quelconque des deux revendications précédentes,
    caractérisé en ce que
    les ouvertures d'aération (120) qui aèrent ledit au moins un deuxième canal d'aération se situent, dans la direction de la largeur du sac (x), en dehors de la région d'aération de l'intérieur du sac (210) vers le premier canal d'aération (20).
  7. Sac selon la revendication précédente,
    caractérisé par
    des plis latéraux (80) et en ce que les troisièmes ouvertures d'aération (120) qui aèrent ledit au moins un deuxième canal d'aération (140) se situent dans la région des plis latéraux (80) dans la direction de la largeur du sac (x).
  8. Sac selon l'une quelconque des trois revendications précédentes,
    caractérisé en ce que
    le sac (220) comprend au moins une soudure de coin (130) qui est située, dans la direction de l'axe du tube (z), à partir de l'intérieur du sac (210), avant ledit au moins un deuxième canal d'aération (140).
  9. Sac selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les troisièmes ouvertures d'aération (120) qui aèrent ledit au moins un deuxième canal d'aération (140) relient le canal d'aération (140) à l'atmosphère ou à un troisième canal d'aération supplémentaire qui comprend pour sa part encore une fois des ouvertures d'aération (90, 100, 120, 200).
  10. Sac selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins une partie des ouvertures de ventilation (90, 100, 120, 200) qui aèrent des canaux d'aération (20, 140) interrompent un joint de soudure (50, 60, 110, 150).
  11. Sac selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins une partie des ouvertures d'aération (90, 100, 120, 200) qui aèrent des canaux d'aération (20, 140) ou l'intérieur du sac (210) sont des trous (200) dans une couche de film (30, 40).
  12. Sac selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins une partie des ouvertures d'aération (200) qui aèrent des canaux d'aération (20, 140) ou l'intérieur du sac (210) sont pourvues de filtres.
  13. Sac selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'un deuxième canal d'aération (21) est prévu, lequel s'étend dans une large mesure parallèlement au premier canal d'aération,
    le premier canal d'aération (20) étant relié au deuxième canal d'aération (21) par l'intermédiaire de deuxièmes ouvertures d'aération (23).
  14. Sac selon la revendication précédente,
    caractérisé en ce
    qu'au moins un des groupes suivants d'ouvertures d'aération (22, 23, 24) est, dans la direction de l'axe du sac (z), espacé d'un autre des groupes suivants d'ouvertures d'aération (22, 23, 24) :
    - les premières ouvertures d'aération (22),
    - les deuxièmes ouvertures d'aération (23),
    - les troisièmes ouvertures d'aération (24).
  15. Sac selon la revendication précédente,
    caractérisé en ce
    qu'au moins les deuxièmes (23) et/ou les troisièmes ouvertures d'aération (24) sont espacées des premières ouvertures d'aération (22) dans la direction de l'axe du sac (z) de telle sorte qu'un décalage en hauteur (y) entre les premières ouvertures d'aération (22) et les deuxièmes (23) et/ou troisièmes ouvertures d'aération (24) se produise lorsque les sacs sont empilés.
  16. Sac selon la revendication précédente,
    caractérisé en ce
    qu'au moins les deuxièmes ouvertures d'aération (23) sont disposées de telle sorte qu'un décalage en hauteur (y) par rapport aux premières ouvertures d'aération (22) se produise lors de l'empilement.
  17. Sac selon la revendication précédente,
    caractérisé en ce
    qu'au moins deux des trois groupes d'ouvertures d'aération (22, 23, 24) sont espacés les uns des autres de telle sorte que l'un des groupes se
    situe sur le côté frontal du sac et qu'un autre groupe se situe sur l'autre côté frontal.
  18. Procédé de réalisation de sacs selon l'une quelconque des revendications précédentes, caractérisé en ce
    - qu'un tube est déroulé par un dispositif dérouleur et est acheminé jusqu'à une machine qui sépare le tube en morceaux de tube (10) au moyen de soudures transversales (110),
    - remplit le sac (220) produit lors de la séparation,
    - et ferme le sac rempli à l'aide d'une autre soudure transversale supplémentaire (110).
  19. Procédé de réalisation d'un sac selon la revendication 2 ou 13 selon le procédé selon la revendication précédente,
    caractérisé en ce
    qu'un tube est déroulé par le dispositif dérouleur, lequel tube comprend déjà au moins deux canaux d'aération (20, 140) juxtaposés qui sont disposés dans une large mesure parallèlement à l'axe du tube.
  20. Procédé de réalisation d'un sac selon la revendication 3 selon le procédé selon la revendication 18,
    caractérisé en ce
    qu'un film tubulaire qui comprend le premier canal de ventilation (20) est déroulé par un dispositif dérouleur et est acheminé jusqu'à une machine qui effectue des soudures transversales (110, 150) de préférence avant le remplissage, au moyen desquelles soudures transversales au moins un deuxième canal d'aération (140) est formé.
  21. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'un tube est déroulé, lequel comprend déjà au moins deux canaux d'aération (20, 21) s'étendant dans une large mesure parallèlement.
EP07702653.2A 2006-01-31 2007-01-02 Sac et son procédé de réalisation Not-in-force EP1981768B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13186707.9A EP2690030A3 (fr) 2006-01-31 2007-01-02 Sac et son procédé de fabrication
PL07702653T PL1981768T3 (pl) 2006-01-31 2007-01-02 Worek i sposób wytwarzania go

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004291A DE102006004291A1 (de) 2006-01-31 2006-01-31 Sack und Verfahren zur Herstellung desselben
PCT/EP2007/000151 WO2007087965A1 (fr) 2006-01-31 2007-01-02 Sac et son procédé de réalisation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP13186707.9A Division EP2690030A3 (fr) 2006-01-31 2007-01-02 Sac et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP1981768A1 EP1981768A1 (fr) 2008-10-22
EP1981768B1 true EP1981768B1 (fr) 2013-10-02

Family

ID=37873079

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13186707.9A Withdrawn EP2690030A3 (fr) 2006-01-31 2007-01-02 Sac et son procédé de fabrication
EP07702653.2A Not-in-force EP1981768B1 (fr) 2006-01-31 2007-01-02 Sac et son procédé de réalisation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13186707.9A Withdrawn EP2690030A3 (fr) 2006-01-31 2007-01-02 Sac et son procédé de fabrication

Country Status (6)

Country Link
US (1) US10118736B2 (fr)
EP (2) EP2690030A3 (fr)
DE (1) DE102006004291A1 (fr)
ES (1) ES2436769T3 (fr)
PL (1) PL1981768T3 (fr)
WO (1) WO2007087965A1 (fr)

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DE102006054404B4 (de) 2006-11-18 2018-08-30 Zf Friedrichshafen Ag Planetengetriebevorrichtung mit zwei Sonnenrädern mit unterschiedlichen Durchmessern
WO2009090674A2 (fr) * 2008-01-17 2009-07-23 Ashok Chaturvedi Emballages à auto-ventilation
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DE102009036556A1 (de) 2009-08-10 2011-02-17 Windmöller & Hölscher Kg Verfahren und Vorrichtung zur Herstellung eines Sacks oder eines Beutels mit Vliesmaterial sowie Sack oder Beutel, welcher Vliesmaterial umfasst
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DE102010039770A1 (de) 2010-08-25 2012-03-01 Windmöller & Hölscher Kg Sack sowie Verfahren und Vorrichtung zur Herstellung von Säcken
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DE102017204533A1 (de) 2017-03-17 2018-09-20 Windmöller & Hölscher Kg Kunststoffsack, insbesondere FFS-Sack sowie Verfahren und Vorrichtung zurHerstellung und zum Befüllen eines Sacks
DE102016220428A1 (de) * 2016-09-27 2018-03-29 Windmöller & Hölscher Kg Ventilsack sowie Verfahren und System zur Herstellung eines Ventilsacks
CN109996736A (zh) 2016-09-27 2019-07-09 温德莫勒及霍尔希尔公司 塑料袋、尤其是ffs袋以及用于制造和用于填装袋的方法和设备
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
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US11338975B2 (en) 2018-05-16 2022-05-24 The Procter & Gamble Company Container blanks for flexible packages and methods of making flexible packages
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DE29807807U1 (de) * 1998-04-03 1999-08-12 Bischof Und Klein Gmbh & Co, 49525 Lengerich Packmittel in Form eines Sackes oder Beutels aus Kunststoffolie o.dgl. luftundurchlässigem Material
DE19920478C2 (de) * 1999-05-04 2001-05-03 Windmoeller & Hoelscher Vorrichtung zum Herstellen und vorzugsweise auch zum Befüllen und Verschließen von Säcken aus thermoplastischem Kunststoff
JP4059753B2 (ja) * 2002-11-14 2008-03-12 大和グラビヤ株式会社 収納袋
DE102004026538A1 (de) * 2004-05-27 2005-12-22 Haver & Boecker Ohg Mit einem Schüttgut befüllbarer Sack aus Kunststofffolie
PT1607339E (pt) * 2004-05-27 2008-06-30 Rkw Ag Saco de material plástico com ventilação de sobrepressão

Also Published As

Publication number Publication date
US10118736B2 (en) 2018-11-06
EP1981768A1 (fr) 2008-10-22
EP2690030A3 (fr) 2014-07-30
EP2690030A2 (fr) 2014-01-29
ES2436769T3 (es) 2014-01-07
PL1981768T3 (pl) 2014-03-31
US20090052813A1 (en) 2009-02-26
WO2007087965A1 (fr) 2007-08-09
DE102006004291A1 (de) 2007-08-09

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