US20060269173A1 - Side fold sack with roll bottom - Google Patents

Side fold sack with roll bottom Download PDF

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Publication number
US20060269173A1
US20060269173A1 US11/136,724 US13672405A US2006269173A1 US 20060269173 A1 US20060269173 A1 US 20060269173A1 US 13672405 A US13672405 A US 13672405A US 2006269173 A1 US2006269173 A1 US 2006269173A1
Authority
US
United States
Prior art keywords
sack
tube
segment
fold
folds
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.)
Abandoned
Application number
US11/136,724
Other languages
English (en)
Inventor
Uwe Koehn
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36683191&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20060269173(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to US11/136,724 priority Critical patent/US20060269173A1/en
Assigned to WINDMOELLER & HOELSCHER KG reassignment WINDMOELLER & HOELSCHER KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOEHN, UWE
Priority to DE502006009400T priority patent/DE502006009400D1/de
Priority to PCT/EP2006/004833 priority patent/WO2006125585A1/fr
Priority to BRPI0610202A priority patent/BRPI0610202A8/pt
Priority to EP06753766A priority patent/EP1899235B1/fr
Priority to DE202006021200U priority patent/DE202006021200U1/de
Priority to CN2006800179829A priority patent/CN101180222B/zh
Priority to DE202006021201U priority patent/DE202006021201U1/de
Priority to DE202006021199U priority patent/DE202006021199U1/de
Priority to AT06753766T priority patent/ATE507156T1/de
Publication of US20060269173A1 publication Critical patent/US20060269173A1/en
Priority to US12/659,351 priority patent/US20110013859A1/en
Priority to US14/805,128 priority patent/US20160145008A1/en
Abandoned legal-status Critical Current

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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 sacks according to the preamble of claim 1 .
  • Such type of sacks are known.
  • DE 101 06 289 A1 shows such a sack.
  • the bottom fold opens up particularly then, when the filled sack is stacked and the fold is exposed directly to mechanical load.
  • Such mechanical load can include that another heavy, filled sack is dragged by this bottom fold, leading to breaking open of the fold. Therefore, the underlying problem of the invention was to propose a sack, in which the bottom area exhibits greater durability. This problem is solved by the characterizing features of claim 1 .
  • the filled sack readily assumes a cuboid or a box-shaped form.
  • sacks made from polyolefin material.
  • the polyolefin fibers are in general textured and oriented mostly monoaxially, that is along their longitudinal axis. These fibers are often entwined into flat sheets, from which, tubes are later produced. However, the fibers can be processed directly to round tubes.
  • This polyolefin material and its properties are well-known. It is explained, besides other publications, in WO 95/30598. Further processing of this material requires in-depth know-how.
  • Heat induced seaming means here a method of bonding, which requires supply of heat. That is, even a gluing method, which is carried out with temperature-dependent adhesives also belongs to a heat induced bonding method. The same applies to any other type of processing of the extrudates.
  • a further advantageous possibility in the processing of this material lies in that, the coating, which is often made on polyolefin band tissues, is welded.
  • the fabric is often coated in order, in particular, to the tissue more tight in the filling of pulverizable material.
  • the sack according to the invention exhibits a bottom fold, which is made about an axis, which is essentially transversal to the axis of the tubular segment or an area of tubular segment.
  • Such a fold or a rolling is not easy to make. Even this fold or the rolling contributes to the subsequent box-like shape of the filled up sack and is therefore of special advantage.
  • With a double fold not only the stability, but also its tightness of the bottom area is increased considerably and to a surprisingly remarkable extent.
  • the double fold leads to a still stronger bottom, which also supports the box-like shape of the sack especially in conjunction with the label.
  • care must be taken that at least parts of the bottom fold are covered with the label, so that the fold is supported by the label.
  • it can be adequate if most of the areas remain unsupported and if the labels, for example, in the form of adhesive bands, cover only some parts of the areas of the fold.
  • tubular segments are suitable, which exhibit straight and/or staggered cuts. Sacks according to the invention with straight cuts are especially simple to fabricate.
  • a preferred area of application of the sacks according to the invention lies in the storage and transport of bulk goods, especially of powder-like goods. In this area of its application, sacks, which also exhibit a box-like form, are common, but which are provided with a folded block bottom. Manufacture of such sacks is very elaborate. Common in this area of application are also cross bottom sacks.
  • bonding process is used to mean anything, in which materials are joined with each other. Explicitly mentioned already were the bonding and gluing processes, as well as joints of plastic parts with extrudates.
  • Various materials can be used as labels, depending on the requirements in regard to the stability of the sack. These materials can be the same as or different from the material of the sack or the material of the tubular segment. In case of particularly high loads, olefin fabrics can be used. Again, here too, the modalities involved in making the joints, or the processing conditions recommendable in the processing of polyolefin fabrics, should be adhered to.
  • Especially advantageous thereby in the fabrication of the seams is, if the outer layer of the tube or the sack material is joined by melting. The heat necessary for that can thereby be supplied by means of heated air, which is blown on the seams to be jointed.
  • FIG. 1 Perspective view of a tube or a segment of the tube in the fabrication of a sack according to the invention.
  • FIG. 2 Side view of a segment of the tube, in which an end is rolled inwards.
  • FIG. 3 Top view of an end of a sack according to the invention.
  • FIG. 4 Side view of an end of a sack according to the invention.
  • FIG. 1 shows a perspective view of a tube 1 or a tubular segment, which is suitable for the fabrication of a sack 2 according to the invention.
  • the tube 1 exhibits a longitudinal seam 3 .
  • the tubes are in general fabricated with such a lengthwise seam from a flat sheet.
  • the tube 1 can also be of a round shaped material, so that no lengthwise seams are there.
  • the tube 1 shown in FIG. 1 exhibits side folds 4 , made with depth A (see FIG. 3 ), between the front wall 5 and the rear wall 6 of the tube 1 .
  • FIG. 2 One step in the fabrication process of the sacks 2 according to the invention is illustrated in FIG. 2 .
  • the lower end of the tube 8 is folded or rolled. Thereby, the folded end 8 of the tube comes to lie against the front wall 5 of the tube 1 or the sack 2 (as shown) or on the rear wall 6 (not shown).
  • two layers, which are laid one above the other by folding over or rolling, can be connected through an appropriate bonding process.
  • a label 9 is connected with the folded end 8 , and on the wall, on which the fold or the roll lies.
  • the label 9 is connected with the lower end 8 and with the front wall 5 .
  • the label 9 extends over the entire length of the sack 2 or the tube 1 .
  • the width B of the label 9 is somewhat smaller than the depth A of the side folds. If the width of the label 9 is smaller or equal to the depth A and the side edge of the label 9 is arranged near the fold—or the axis of the roll, then the label 9 lies exclusively at the bottom area of the sack, if it assumes, for example due to filling, a block-like shape.
  • the bottom is also very resilient against mechanical loads, even when the sack is filled up.
  • the rolled up or the folded end 8 extends over half of the width B of the label 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)
US11/136,724 2005-05-25 2005-05-25 Side fold sack with roll bottom Abandoned US20060269173A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US11/136,724 US20060269173A1 (en) 2005-05-25 2005-05-25 Side fold sack with roll bottom
AT06753766T ATE507156T1 (de) 2005-05-25 2006-05-19 Seitenfaltensack mit rollboden
DE202006021199U DE202006021199U1 (de) 2005-05-25 2006-05-19 Seitenfaltsack mit Rollboden
DE202006021200U DE202006021200U1 (de) 2005-05-25 2006-05-19 Seitenfaltsack mit Rollboden
PCT/EP2006/004833 WO2006125585A1 (fr) 2005-05-25 2006-05-19 Sac a soufflets lateraux comportant une base enroulee
BRPI0610202A BRPI0610202A8 (pt) 2005-05-25 2006-05-19 Saco com dobras laterais e processo para produção de um saco de dobras laterais
EP06753766A EP1899235B1 (fr) 2005-05-25 2006-05-19 Sac a soufflets lateraux comportant une base enroulee
DE502006009400T DE502006009400D1 (de) 2005-05-25 2006-05-19 Seitenfaltensack mit rollboden
CN2006800179829A CN101180222B (zh) 2005-05-25 2006-05-19 具有折卷底部的侧边折摺式袋子及其制造方法
DE202006021201U DE202006021201U1 (de) 2005-05-25 2006-05-19 Seitenfaltsack mit Rollboden
US12/659,351 US20110013859A1 (en) 2005-05-25 2010-03-04 Side fold sack with roll bottom
US14/805,128 US20160145008A1 (en) 2005-05-25 2015-07-21 Side fold sack with roll bottom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/136,724 US20060269173A1 (en) 2005-05-25 2005-05-25 Side fold sack with roll bottom

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/659,351 Continuation US20110013859A1 (en) 2005-05-25 2010-03-04 Side fold sack with roll bottom

Publications (1)

Publication Number Publication Date
US20060269173A1 true US20060269173A1 (en) 2006-11-30

Family

ID=36683191

Family Applications (3)

Application Number Title Priority Date Filing Date
US11/136,724 Abandoned US20060269173A1 (en) 2005-05-25 2005-05-25 Side fold sack with roll bottom
US12/659,351 Abandoned US20110013859A1 (en) 2005-05-25 2010-03-04 Side fold sack with roll bottom
US14/805,128 Abandoned US20160145008A1 (en) 2005-05-25 2015-07-21 Side fold sack with roll bottom

Family Applications After (2)

Application Number Title Priority Date Filing Date
US12/659,351 Abandoned US20110013859A1 (en) 2005-05-25 2010-03-04 Side fold sack with roll bottom
US14/805,128 Abandoned US20160145008A1 (en) 2005-05-25 2015-07-21 Side fold sack with roll bottom

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) DE502006009400D1 (fr)
WO (1) WO2006125585A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070292053A1 (en) * 2006-06-15 2007-12-20 Standard Multiwall Bag Manufacturing Co. Polywoven pinch bottom open mouth bag
US20100120313A1 (en) * 2005-06-29 2010-05-13 Bohme Reinhard D Packaging Material
US20100266223A1 (en) * 2006-06-15 2010-10-21 Standard Multiwall Bag Manufacturing Co. Pinch bottom open mouth bag
US20100273377A1 (en) * 2006-06-29 2010-10-28 Files John C High Strength Packages and Packaging Materials
US20100270309A1 (en) * 2006-06-29 2010-10-28 Files John C High Strength Packages and Packaging Materials
US8826959B2 (en) 2006-06-29 2014-09-09 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials
US20150353218A1 (en) * 2013-01-08 2015-12-10 Windmöller & Hölscher Kg Method for producing bags
US9758279B2 (en) 2012-03-07 2017-09-12 Mondi Halle Gmbh Side-gusset bag made of a plastic fabric composite, and method for the production thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2868594A1 (fr) 2013-10-30 2015-05-06 Mondi Halle GmbH Sachet composite en tissu en matière plastique
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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US3346173A (en) * 1965-12-15 1967-10-10 Gilman Paper Company Gusseted multi-wall waterproof paper bag
US3567111A (en) * 1969-04-24 1971-03-02 Int Paper Co Multiply paper bag
US3807626A (en) * 1972-03-20 1974-04-30 St Regis Paper Co Gusseted pinch bottom breakaway pouch bag
US4498192A (en) * 1983-01-28 1985-02-05 Mid America Machine Corp. Bag having an overlapped closure and method of fabricating the same
US4876125A (en) * 1987-07-22 1989-10-24 Fuji Photo Film Co., Ltd. Gusset bag for photographic photosensitive materials
US5823685A (en) * 1996-09-19 1998-10-20 Ardex Inc. Peel-away closure for a bag
US5824380A (en) * 1996-05-09 1998-10-20 Menasha Corp. Package reclosure label and package
US5845995A (en) * 1994-05-04 1998-12-08 Starlinger & Co. Gesellschaft Mbh Bag made of polymer and especially polyolefine fabric and process for producing it
US6391411B1 (en) * 1999-06-03 2002-05-21 Printpack Illinois, Inc. Machine direction oriented high molecular weight, high density polyethylene films with enhanced water vapor transmission properties
US6800051B2 (en) * 2001-02-06 2004-10-05 Windomeller & Hoelscher Process for manufacturing side fold sacks made of plastic film
US20060083446A1 (en) * 2002-10-18 2006-04-20 Sampaio Camacho Jose M Recloseable flexible bag
US20060210740A1 (en) * 2005-03-17 2006-09-21 Cryovac, Inc. Retort packaging process and product utilizing high-temperature abuse layer and low-temperature abuse layer

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US7731425B2 (en) * 2006-06-15 2010-06-08 Standard Multiwall Bag Manufacturing Co. Polywoven pinch bottom open mouth bag
US20100098355A1 (en) * 2008-10-20 2010-04-22 Jansen Mark E Bag having a closure assembly

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US392964A (en) * 1888-11-13 Frank m
US2316385A (en) * 1939-10-14 1943-04-13 Central States Paper & Bag Com Container
US3346173A (en) * 1965-12-15 1967-10-10 Gilman Paper Company Gusseted multi-wall waterproof paper bag
US3312337A (en) * 1966-03-21 1967-04-04 Continental Can Co Protective package for frangible articles
US3567111A (en) * 1969-04-24 1971-03-02 Int Paper Co Multiply paper bag
US3807626A (en) * 1972-03-20 1974-04-30 St Regis Paper Co Gusseted pinch bottom breakaway pouch bag
US4498192A (en) * 1983-01-28 1985-02-05 Mid America Machine Corp. Bag having an overlapped closure and method of fabricating the same
US4876125A (en) * 1987-07-22 1989-10-24 Fuji Photo Film Co., Ltd. Gusset bag for photographic photosensitive materials
US5845995A (en) * 1994-05-04 1998-12-08 Starlinger & Co. Gesellschaft Mbh Bag made of polymer and especially polyolefine fabric and process for producing it
US5824380A (en) * 1996-05-09 1998-10-20 Menasha Corp. Package reclosure label and package
US5823685A (en) * 1996-09-19 1998-10-20 Ardex Inc. Peel-away closure for a bag
US6391411B1 (en) * 1999-06-03 2002-05-21 Printpack Illinois, Inc. Machine direction oriented high molecular weight, high density polyethylene films with enhanced water vapor transmission properties
US6800051B2 (en) * 2001-02-06 2004-10-05 Windomeller & Hoelscher Process for manufacturing side fold sacks made of plastic film
US20060083446A1 (en) * 2002-10-18 2006-04-20 Sampaio Camacho Jose M Recloseable flexible bag
US20060210740A1 (en) * 2005-03-17 2006-09-21 Cryovac, Inc. Retort packaging process and product utilizing high-temperature abuse layer and low-temperature abuse layer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100120313A1 (en) * 2005-06-29 2010-05-13 Bohme Reinhard D Packaging Material
US20070292053A1 (en) * 2006-06-15 2007-12-20 Standard Multiwall Bag Manufacturing Co. Polywoven pinch bottom open mouth bag
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
US20100273377A1 (en) * 2006-06-29 2010-10-28 Files John C High Strength Packages and Packaging Materials
US20100270309A1 (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
US8826959B2 (en) 2006-06-29 2014-09-09 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials
US9522499B2 (en) 2006-06-29 2016-12-20 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials
US9758279B2 (en) 2012-03-07 2017-09-12 Mondi Halle Gmbh Side-gusset bag made of a plastic fabric composite, and method for the production thereof
US20150353218A1 (en) * 2013-01-08 2015-12-10 Windmöller & Hölscher Kg Method for producing bags

Also Published As

Publication number Publication date
US20160145008A1 (en) 2016-05-26
BRPI0610202A8 (pt) 2017-10-03
CN101180222B (zh) 2011-11-30
EP1899235B1 (fr) 2011-04-27
CN101180222A (zh) 2008-05-14
DE502006009400D1 (de) 2011-06-09
US20110013859A1 (en) 2011-01-20
DE202006021200U1 (de) 2013-08-08
EP1899235A1 (fr) 2008-03-19
WO2006125585A1 (fr) 2006-11-30
DE202006021199U1 (de) 2013-08-08
ATE507156T1 (de) 2011-05-15
BRPI0610202A2 (pt) 2010-06-01
DE202006021201U1 (de) 2013-08-08

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