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EP1113966A1 - Sachet et procede de fermeture de sachets - Google Patents

Sachet et procede de fermeture de sachets

Info

Publication number
EP1113966A1
EP1113966A1 EP00951083A EP00951083A EP1113966A1 EP 1113966 A1 EP1113966 A1 EP 1113966A1 EP 00951083 A EP00951083 A EP 00951083A EP 00951083 A EP00951083 A EP 00951083A EP 1113966 A1 EP1113966 A1 EP 1113966A1
Authority
EP
European Patent Office
Prior art keywords
sack
bag
bags
welding
twice
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.)
Withdrawn
Application number
EP00951083A
Other languages
German (de)
English (en)
Inventor
Franz Starlinger Huemer
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.)
Starlinger and Co GmbH
Original Assignee
Starlinger and Co 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 Starlinger and Co GmbH filed Critical Starlinger and Co GmbH
Publication of EP1113966A1 publication Critical patent/EP1113966A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
    • B65D33/22—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps using heat-activatable adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides

Definitions

  • the invention relates to a method for closing open ends or edges of bags, in particular cushioned bags or gusseted bags, or of bag bodies for their production by gluing or welding, the gluing or welding between the bag or bag body and at least twice on the bag or bag body folded back, to be closed end of the bag or bag body is performed.
  • the invention further relates to sacks, in particular upholstery sacks or gusseted sacks.
  • upholstery bags and gusseted bags for the packaging industry are conventionally manufactured in such a way that first of all from a suitable material, such as e.g. Paper or plastic, tubular bag body are formed, which have opposite open ends. One of these ends is then closed by one or more seams and thus forms the bottom of the sack so produced. After the sack has been filled, the upper end of the sack is usually also closed by a seam.
  • a suitable material such as e.g. Paper or plastic
  • the present invention overcomes the aforementioned problems by providing a method for closing open ends or edges of bags, in particular cushioned bags or gusseted bags, or of bag bodies for their production by gluing or welding, the gluing or welding between the bag or bag body and the at least double folded back onto the sack or sack body to be closed end of the sack or sack body is carried out, and the method is characterized in that on A meltable layer is provided at least on the outside of the bag or bag body and the welding or gluing is carried out by means of a hot air nozzle.
  • the gluing or welding can be carried out by applying an adhesive layer as a fusible layer, preferably a hot-melt adhesive, between the sack or sack body and the end of the sack or sack body folded back at least twice onto the sack or sack body.
  • an adhesive layer as a fusible layer, preferably a hot-melt adhesive
  • an adhesive layer preferably a hot-melt adhesive
  • a hot-melt adhesive can be applied as a meltable layer to at least one predetermined contact surface of the sack or sack body and / or the end of the sack or sack body to be folded back, followed by at least double folding back of the sack or sack body closing end on the sack or bag body. If the adhesive layer is applied to both contact surfaces, a two-component adhesive can be used.
  • the invention also relates to a sack, in particular an upholstery sack or gusseted sack, which has at least one edge or end region which is folded back onto the sack body at least twice, characterized in that the sack body and the at least one edge or end region are connected to one another facing surfaces are welded or glued together according to the inventive method.
  • a particularly advantageous embodiment of the sack according to the invention is characterized in that the sack body is tubular and an end region of the sack body that forms at least twice folded back onto the sack body and welded or glued to the sack body on its mutually facing surfaces forms the sack bottom.
  • the sack according to the invention preferably consists of plastic film or plastic fabric.
  • FIG. 1 shows an upholstery bag according to the invention in a perspective view
  • FIG. 2 shows a longitudinal section through the bag of FIG. 1 along the line AA
  • FIG. 3 shows a side gusset bag according to the invention in a perspective view
  • FIG. 4 shows a longitudinal section through the bag 3 along the line BB.
  • this bag 1 has a tubular bag body 2, which consists of two superimposed! material webs 2a, 2b is formed.
  • the material of the sack can consist of paper or plastic, whereby plastic can be used either in the form of foils or of fabric made of plastic tapes.
  • a coating can be applied to at least one surface of the material webs, which can be sealing, anti-slip coatings, etc.
  • Composite materials made of paper and plastic can also be used.
  • the tubular bag body 2 can either be produced by superimposing or longitudinally folding flat webs and connecting the webs on the longitudinal edges, or can be provided particularly expediently by providing round woven fabric or film made of plastic.
  • the lower end of the upholstery bag 1 forming the bottom 1 a is closed according to the invention in that the lower end 2 c of the bag body 2 is first folded back by 180 ° onto the bag body and then folded back again by 180 ° onto the bag body and facing each other Surfaces of the bag body end 2c and the bag body 2 are glued or welded together (indicated at 4).
  • gluing is possible with all sack materials, whereby suitable one or two-component glue can be used for the material.
  • hot melt adhesives which are outstandingly suitable for both paper and plastic, in particular for uncoated fabric bags.
  • the welding of foil bags and plastic-coated fabric bags is particularly advantageous.
  • the welding can either be carried out by introducing a hot plastic melt between the surfaces of the sack body and the end of the sack body after being folded twice, but is particularly preferably carried out by means of a hot air nozzle which, after being folded twice, blows hot air between the surfaces mentioned and thus up to a predetermined one Material depth melts, followed by pressing the melted surfaces together.
  • the closing method according to the invention has the advantage that there is no damage of the sack material is done by needle punctures and no troublesome sewing machine has to be used in the production line.
  • the method according to the invention can be used both for producing a base on a sack body and for closing a sack after it has been filled. In the latter case, there is an additional advantage in that the gluing or welding takes place only on the outside of the bag body, so that no contamination of the contents of the bag can occur.
  • FIGS. 3 and 4 show a further embodiment of a sack according to the invention, namely a gusseted sack 10.
  • This exemplary embodiment shows that it is also possible to close sacks according to the method of the invention in which more than two layers of material are present at the end of the sack body or where the number of layers of material varies.
  • the gusseted sack 10 is formed by folding a tubular sack body 12 inwards at its side edges and then closing the lower open end of the sack body. The result of this is that four sack body layers have to be connected to one another at the edge regions 10a, 10c, while there are only two layers in the central region 10b.
  • FIG. 4 shows a section of an edge region 10a of a gusseted bag 10 along the line BB from FIG. 3.
  • the lower end of the gusseted bag 10 which forms the bottom, is closed according to the invention by first folding the lower end 12c of the bag body 12 back onto the bag body by 180 ° and then another time by 180 ° is folded back onto the bag body and the mutually facing surfaces of the bag body end 12c and the bag body 12 are glued or welded to one another (indicated at 4).
  • the bag body is produced from flat sheets, it is also possible to produce the connection of the longitudinal edges of the sheets lying one above the other by the method according to the invention.

Landscapes

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

Abstract

L'invention concerne un procédé pour fermer des extrémités ou des bords ouverts de sachets, notamment de sachets rembourrés (1) ou de sachets à soufflets (10), ou de corps de sachets (2, 12), afin de produire des sachets par collage ou soudage. L'opération de collage ou soudage (4) s'effectue entre le sachet (1, 10) ou le corps de sachet (2, 12) et l'extrémité à fermer (2c, 12c) du sachet ou du corps de sachet, repliée au moins deux fois sur ces derniers, au moyen d'une buse d'air chaud. Lors de cette opération, une couche fusible est appliquée au moins sur le côté extérieur du sachet ou du corps de sachet. L'invention concerne également un sachet présentant au moins une zone marginale ou terminale (2c, 12c) qui est repliée au moins deux fois sur le corps de sachet (2, 12), ce dernier et la ou les zones marginales ou terminales étant assemblés par soudage ou collage au niveau de leurs surfaces orientées les unes vers les autres.
EP00951083A 1999-07-14 2000-07-11 Sachet et procede de fermeture de sachets Withdrawn EP1113966A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0048299U AT3728U1 (de) 1999-07-14 1999-07-14 Sack und verschliessverfahren für säcke
AT48299U 1999-07-14
PCT/AT2000/000192 WO2001005671A1 (fr) 1999-07-14 2000-07-11 Sachet et procede de fermeture de sachets

Publications (1)

Publication Number Publication Date
EP1113966A1 true EP1113966A1 (fr) 2001-07-11

Family

ID=3491782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00951083A Withdrawn EP1113966A1 (fr) 1999-07-14 2000-07-11 Sachet et procede de fermeture de sachets

Country Status (4)

Country Link
EP (1) EP1113966A1 (fr)
AT (1) AT3728U1 (fr)
BR (1) BR0006935B1 (fr)
WO (1) WO2001005671A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060269173A1 (en) * 2005-05-25 2006-11-30 Uwe Koehn Side fold sack with roll bottom
US8826959B2 (en) 2006-06-29 2014-09-09 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials
US8753012B2 (en) 2006-06-29 2014-06-17 Graphic Flexible Packaging, Llc High strength packages and packaging materials
AT9823U1 (de) † 2007-09-10 2008-04-15 Starlinger & Co Gmbh Beschichtetes gewebe aus monoaxial verstreckten kunststoffbändchen und daraus hergestellter sack
MX2012003786A (es) * 2009-10-02 2012-06-19 Graphic Packaging Int Inc Sistema y metodos de sellado por calor, y articulos y materiales relacionados.
DE102009056078B8 (de) 2009-11-30 2012-06-14 Windmöller & Hölscher Kg Verfahren und Vorrichtung zur Herstellung von Pinchsäcken sowie Station zur Bildung von Pinchböden
FR2974068B1 (fr) * 2011-04-14 2014-03-14 Dune Machine et procede d'ensachage de produits alimentaires allonges et sac d'ensachage utilise dans une telle machine
DE102012101932A1 (de) 2012-03-07 2013-09-12 Nordenia Deutschland Halle Gmbh Seitenfaltenbeutel aus einem Kunststoffgewebeverbund sowie Verfahren zu seiner Herstellung
PL3290206T3 (pl) 2016-08-30 2021-01-25 Mondi Ag Sposób wytwarzania produktu kompozytowego z tkaniny z tworzywa sztucznego i folii, kompozyt z tkaniny z tworzywa sztucznego i folii oraz worek opakowaniowy z kompozytu z tkaniny z tworzywa sztucznego i folii
CN116116966B (zh) * 2022-12-28 2025-10-28 无锡精派机械有限公司 一种简易多功能铝管折尾机构及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6502591A (fr) * 1964-03-10 1965-09-13
GB1239906A (en) * 1967-09-19 1971-07-21 Robinson E S & A Ltd A method of making bags of paper or like sheet material
GB1369444A (en) * 1971-11-29 1974-10-09 Dickinson Co Ltd John Paper or like bags
FR2178397A5 (fr) * 1972-03-30 1973-11-09 Aquitaine Total Emballag
CH607627A5 (fr) * 1975-05-07 1978-09-29 Jagenberg Werke Ag
US4323189A (en) * 1980-05-27 1982-04-06 Arvey Corporation Closable pouch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0105671A1 *

Also Published As

Publication number Publication date
AT3728U1 (de) 2000-07-25
WO2001005671A1 (fr) 2001-01-25
BR0006935B1 (pt) 2010-07-27
BR0006935A (pt) 2005-04-12

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