EP1899235B1 - Sac a soufflets lateraux comportant une base enroulee - Google Patents

Sac a soufflets lateraux comportant une base enroulee Download PDF

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Publication number
EP1899235B1
EP1899235B1 EP06753766A EP06753766A EP1899235B1 EP 1899235 B1 EP1899235 B1 EP 1899235B1 EP 06753766 A EP06753766 A EP 06753766A EP 06753766 A EP06753766 A EP 06753766A EP 1899235 B1 EP1899235 B1 EP 1899235B1
Authority
EP
European Patent Office
Prior art keywords
tab
tubular
piece
region
gusset 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
EP06753766A
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German (de)
English (en)
Other versions
EP1899235A1 (fr
Inventor
Uwe Köhn
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
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Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1899235A1 publication Critical patent/EP1899235A1/fr
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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
    • 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
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs

Definitions

  • the invention relates to a bag according to the preamble of claim 1.
  • Such bags are known. So shows, for example, the DE 101 06 289 A1 such a sack.
  • the bottom fold opens in particular when the filled bag is stacked and the folding is exposed directly to mechanical stress. This mechanical stress may include passing another heavy, filled sack past this bottom fold and breaking the fold.
  • the object of the present invention is to propose a further bag, wherein the bottom portion has a greater durability.
  • the object is achieved by the characterizing features of claim 1.
  • heat-induced joining methods in connection with the processing of the bag according to the invention are particularly advantageous. Under heat-induced here is to understand any joining process, which requires heat. That is, also adhesive processes, which are carried out with temperature-dependent adhesives, belong to the heat-induced joining process. The same applies to any kind of processing of extrudate.
  • welding methods are particularly advantageous in which, for example, the polyolefin fabric is welded. It should be noted, as noted, that the strength of the polyolefin fabric is not lost due to the monoaxial orientation of the macromolecules in the polyolefin tapes.
  • Another advantageous possibility in the processing of this material is to weld the coating, which is often applied over the polyolefin ribbon fabric.
  • the fabrics are often coated, in order to bring about a higher density of the fabric, in particular when filling dustable material.
  • the bag according to the invention has a bottom fold which has been made about an axis which runs essentially transversely to the longitudinal axis of the hose piece or piece of hose piece. Such a folding can be carried out particularly easily. This folding also contributes to the later box shape of the filled bag and is therefore of particular advantage. By a double folding not only the stability of the bottom area, but also their tightness is significantly and surprisingly increased. The double folding leads to an even stronger bottom, which, in particular in cooperation with the slip, also supports the box shape of the bag again.
  • attaching the note is to make sure that at least parts of the bottom fold with the note Covered so that the fold is protected by the slip.
  • the bags according to the invention are pieces of hose which have straight and / or Stäffelitese.
  • the bags according to the invention are particularly easy to produce in straight section.
  • a preferred area of use of the sacks according to the invention is likely to be found in the storage and transport of bulk material, in particular dust-like goods.
  • bags are common, which also have a box shape, but which are provided with folded pad floors. These bags are more expensive to produce.
  • cross soil sacks in this area are also common.
  • joining process in this document refers to everything that connects materials. Welding and gluing processes as well as connections of plastic parts with extrudate were expressly mentioned.
  • the connection modalities or the processing conditions recommended for the processing of polyolefin fabrics must again be adhered to.
  • the publication WO 95/30598 directed. It is particularly advantageous if the outer layer of the tube or bag material is melted to produce a compound. Preferably, an outer coating is melted. The heat required for this purpose can be provided by heated air which is blown onto the joint.
  • Fig. 1 shows a perspective view of a hose 1 or a piece of tubing, which is suitable for carrying out the method according to the invention for producing a bag 2 according to the invention.
  • the hose 1 has a longitudinal seam 3.
  • a hose is generally produced from a flat web.
  • the tube 1 can also consist of a round-shaped material, so that no longitudinal seams are present.
  • the Indian Fig. 1 shown hose 1 has gussets 4, which with the depth A (see Fig. 3 ) are inserted between the front wall 5 and the rear wall 6 of the tube 1.
  • a step of the method for producing bags 2 according to the invention is known from Fig. 2 clear.
  • the lower end of the hose 8 is folded.
  • the folded end 8 of the tube on the front wall 5 of the tube 1 and the bag 2 come to rest (as shown) or on the rear wall 6 (not shown).
  • Two layers, which are placed on each other by the folding over, can be connected to each other by a suitable joining process.
  • a piece of paper 9 is connected to the folded end 8 and on the wall on which rests the fold.
  • the note 9 is therefore with the end 8 and with the front wall. 5 connected.
  • the label 9 extends over the entire width of the bag 2 or the tube 1.
  • the width B of the sheet 9 is slightly smaller than or equal to the depth A of the gussets in the illustrated embodiment. If the width of the sheet 9 is less than or equal to the depth A and a side edge of the sheet 9 is arranged near the folding axis, then the note 9 is exclusively in the bottom region of the bag, if this, for example due to a filling, a block shape formed. In this case, the soil is very resistant to mechanical loads even with a filled bag.
  • the folded end 8 extends over half the width B of the sheet 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Fertilizing (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Claims (14)

  1. Sac à plis latéraux, qui comprend les caractéristiques suivantes:
    - une zone de pièce tubulaire avec les parois frontales (5, 6) et les parois latérales du sac, où les parois latérales présentent des plis latéraux (4) qui sont insérés avec une profondeur (A),
    - au moins une zone de fond à une extrémité de la zone de pièce tubulaire, qui présente au moins un pliage du matériau de pièce tubulaire de 180° autour d'un axe qui s'étend transversalement aux plis latéraux,
    - où une petite feuille de la largeur (B) est prévue qui recouvre au moins des parties de la zone pliée dans la zone de fond et est reliée à l'extrémité pliée et à la paroi frontale sur laquelle repose le pliage, où la largeur (B) de la petite feuille s'étend transversalement à l'axe du pliage de la zone de fond de la pièce tubulaire, caractérisé en ce que
    le sac à plis latéraux comprend un tissu revêtu en matériau de polyoléfine orienté et
    en ce que la largeur (B) de la petite feuille est plus petite ou égale à la profondeur (A) des plis latéraux (4).
  2. Sac à plis latéraux selon la revendication précédente, caractérisé en ce qu'aussi la petite feuille comprend du tissu revêtu en matériau de polyoléfine orienté.
  3. Sac à plis latéraux selon l'une des revendications précédentes, caractérisé en ce que les liaisons de la petite feuille avec le matériau de la pièce tubulaire et/ou le matériau de pièce tubulaire rabattu sont induites par la chaleur vers au moins une paroi du matériau de pièce tubulaire.
  4. Sac à plis latéraux selon l'une des revendications précédentes, caractérisé en ce que la au moins une zone de fond présente deux pliages du matériau de pièce tubulaire de 180° autour d'un axe qui s'étend transversalement aux plis latéraux.
  5. Sac à plis latéraux selon la revendication précédente, caractérisé en ce qu'à chaque fois deux couches du matériau tubulaire qui, après le pliage, reposent l'une sur l'autre, sont reliées l'une à l'autre par un processus de jonction approprié.
  6. Sac à plis latéraux selon l'une des revendications précédentes, caractérisé en ce que l'extrémité pliée du sac à plis latéraux s'étend sur la moitié de la largeur (B) de la petite feuille.
  7. Procédé de fabrication d'un sac à plis latéraux, qui comprend un tissu revêtu en matériau de polyoléfine orienté,
    - dans lequel des sections d'un tuyau à plis latéraux sont mises à disposition et
    - dans lequel, dans au moins une zone d'extrémité de la section, un pliage du matériau de pièce tubulaire de 180° autour d'un axe est effectué, qui s'étend transversalement aux plis latéraux,
    - dans lequel au moins des parties de la zone pliée dans la zone de fond sont recouvertes par une petite feuille de la largeur (B), et dans lequel la petite feuille est reliée à l'extrémité pliée et à la paroi frontale sur laquelle repose le pliage, où la largeur (B) de la petite feuille s'étend transversalement à l'axe du pliage de la zone de fond de la pièce tubulaire,
    caractérisé en ce qu'une petite feuille est reliée à la paroi frontale et à l'extrémité pliée, où la largeur (B) de la petite feuille est plus petite ou égale à la profondeur (A) des plis latéraux (4).
  8. Procédé selon la revendication précédente, caractérisé en ce que deux pliages sont exécutés, où à chaque fois deux couches, qui sont posées l'une sur l'autre par respectivement un pliage, sont reliées l'une à l'autre par un processus de jonction approprié.
  9. Procédé selon l'une des deux revendications précédentes, caractérisé en ce qu'au moins une petite feuille est posée sur des parties de la zone pliée et sur des parties d'une paroi du sac à plis latéraux, et qui comprend un tissu en matériau de polyoléfine orienté.
  10. Procédé selon les revendications 7 à 9, caractérisé en ce que la zone d'extrémité du sac à plis latéraux, qui est repliée selon 180°, s'étend sur la moitié de la largeur de la petite feuille.
  11. Procédé selon l'une des revendications 7 à 10, caractérisé en ce que les processus- de jonction qui entraînent la liaison du matériau de pièce tubulaire replié avec au moins une paroi de la zone de pièce tubulaire et/ou les processus de jonction, qui mènent à la liaison du matériau de pièce tubulaire rabattu avec la petite feuille, sont induits au moins en partie par la chaleur.
  12. Procédé selon la revendication précédente, caractérisé en ce que la chaleur pour le processus de jonction induit par la chaleur est amenée au moins en partie avec l'air.
  13. Procédé selon l'une des deux revendications précédentes, caractérisé en ce qu'à l'aide de la chaleur, un revêtement appliqué au matériau de sac est amené au moins partiellement à fondre.
  14. Procédé selon la revendication précédente, caractérisé en ce que la pièce tubulaire est formée par un tuyau par des coupes échelonnées et/ou des coupes droites.
EP06753766A 2005-05-25 2006-05-19 Sac a soufflets lateraux comportant une base enroulee Active EP1899235B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/136,724 US20060269173A1 (en) 2005-05-25 2005-05-25 Side fold sack with roll bottom
PCT/EP2006/004833 WO2006125585A1 (fr) 2005-05-25 2006-05-19 Sac a soufflets lateraux comportant une base enroulee

Publications (2)

Publication Number Publication Date
EP1899235A1 EP1899235A1 (fr) 2008-03-19
EP1899235B1 true EP1899235B1 (fr) 2011-04-27

Family

ID=36683191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06753766A Active EP1899235B1 (fr) 2005-05-25 2006-05-19 Sac a soufflets lateraux comportant une base enroulee

Country Status (7)

Country Link
US (3) US20060269173A1 (fr)
EP (1) EP1899235B1 (fr)
CN (1) CN101180222B (fr)
AT (1) ATE507156T1 (fr)
BR (1) BRPI0610202A8 (fr)
DE (4) DE202006021201U1 (fr)
WO (1) WO2006125585A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101932A1 (de) 2012-03-07 2013-09-12 Nordenia Deutschland Halle Gmbh Seitenfaltenbeutel aus einem Kunststoffgewebeverbund sowie Verfahren zu seiner Herstellung
EP2868594A1 (fr) 2013-10-30 2015-05-06 Mondi Halle GmbH Sachet composite en tissu en matière plastique

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US7731425B2 (en) * 2006-06-15 2010-06-08 Standard Multiwall Bag Manufacturing Co. Polywoven pinch bottom open mouth bag
US20100266223A1 (en) * 2006-06-15 2010-10-21 Standard Multiwall Bag Manufacturing Co. Pinch bottom open mouth bag
US8826959B2 (en) 2006-06-29 2014-09-09 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials
US20100273377A1 (en) * 2006-06-29 2010-10-28 Files John C High Strength Packages and Packaging Materials
US8753012B2 (en) * 2006-06-29 2014-06-17 Graphic Flexible Packaging, Llc High strength packages and packaging materials
DE102009056078B8 (de) 2009-11-30 2012-06-14 Windmöller & Hölscher Kg Verfahren und Vorrichtung zur Herstellung von Pinchsäcken sowie Station zur Bildung von Pinchböden
EP2679511A1 (fr) * 2012-06-25 2014-01-01 Rafia Industrial, S.A. Sac en raphia
DE102013100131A1 (de) * 2013-01-08 2014-07-10 Windmöller & Hölscher Kg Verfahren zum Herstellen von Säcken
DE102014105018A1 (de) * 2014-04-08 2015-10-08 Windmöller & Hölscher Kg Sack mit Vlies-Material
CN104589700B (zh) * 2015-02-07 2017-04-05 芜湖安普机器人产业技术研究院有限公司 一种编织袋折边折角装置及其控制方法
CN109367130B (zh) * 2018-11-22 2020-12-15 无锡市铁民印刷机械有限公司 组合包装袋的制造方法

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101932A1 (de) 2012-03-07 2013-09-12 Nordenia Deutschland Halle Gmbh Seitenfaltenbeutel aus einem Kunststoffgewebeverbund sowie Verfahren zu seiner Herstellung
WO2013131727A1 (fr) 2012-03-07 2013-09-12 Mondi Halle Gmbh Sachet à soufflets latéraux constitué d'un tissu composite en matière synthétique et son procédé de fabrication
EP2822867B1 (fr) 2012-03-07 2016-04-13 Mondi Halle GmbH Sachet à soufflets latéraux constitué d'un tissu composite en matière synthétique et son procédé de fabrication
EP2868594A1 (fr) 2013-10-30 2015-05-06 Mondi Halle GmbH Sachet composite en tissu en matière plastique

Also Published As

Publication number Publication date
CN101180222A (zh) 2008-05-14
US20160145008A1 (en) 2016-05-26
US20110013859A1 (en) 2011-01-20
EP1899235A1 (fr) 2008-03-19
WO2006125585A1 (fr) 2006-11-30
DE202006021201U1 (de) 2013-08-08
BRPI0610202A8 (pt) 2017-10-03
DE202006021200U1 (de) 2013-08-08
US20060269173A1 (en) 2006-11-30
DE202006021199U1 (de) 2013-08-08
CN101180222B (zh) 2011-11-30
BRPI0610202A2 (pt) 2010-06-01
ATE507156T1 (de) 2011-05-15
DE502006009400D1 (de) 2011-06-09

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