[go: up one dir, main page]

US20070181459A1 - Multi-walled, sack-type packaging - Google Patents

Multi-walled, sack-type packaging Download PDF

Info

Publication number
US20070181459A1
US20070181459A1 US10/598,848 US59884805A US2007181459A1 US 20070181459 A1 US20070181459 A1 US 20070181459A1 US 59884805 A US59884805 A US 59884805A US 2007181459 A1 US2007181459 A1 US 2007181459A1
Authority
US
United States
Prior art keywords
packaging medium
wall
packaging
medium
air
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
US10/598,848
Other languages
English (en)
Inventor
Franz Lindlbauer
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.)
Wacker Chemie AG
Original Assignee
Wacker Polymer Systems GmbH and Co 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 Wacker Polymer Systems GmbH and Co KG filed Critical Wacker Polymer Systems GmbH and Co KG
Assigned to WACKER POLYMER SYSTEMS GMBH & CO. KG reassignment WACKER POLYMER SYSTEMS GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LINDLBAUER, FRANZ
Publication of US20070181459A1 publication Critical patent/US20070181459A1/en
Assigned to WACKER CHEMIE AG reassignment WACKER CHEMIE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WACKER POLYMER SYSTEMS GMBH & CO. KG
Abandoned legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/01Ventilation or drainage of bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D31/00Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls

Definitions

  • the invention relates to a multiwall sack-like packaging medium for particulate materials, especially powdery materials.
  • Powdery materials for example polymer powders
  • valve sacks are brought onto the market packed in what are known as valve sacks.
  • filling is carried out by filling machines, which run at a high throughput rate and put the powder into the sack in a state in which it is fluidized with a great deal of air.
  • the air must escape from the sack as quickly as possible.
  • the packaging material used was paper sacks made of kraft paper, since the air can escape through the paper while the powdery filling material is kept back.
  • paper sacks have the disadvantage that they withstand spray and moisture only to an inadequate extent and are sensitive to mechanical loading.
  • multiwall valve sacks which, on the inside, consist of a paper sack which is surrounded on the outside by a sack made of plastic film, normally polyethylene film.
  • plastic film normally polyethylene film.
  • the plastic film surrounding the paper sack is perforated, at least over a subregion of the area. Therefore, although the mechanical strength is increased considerably as compared with paper sacks, the penetration of moisture cannot be suppressed entirely, on account of the large-area perforation.
  • the subject of the invention is a multilayer, sack-like packaging medium 1 , which is configured such that in each case it has a broad front side 3 and rear side 2 , which are joined by narrow side areas 4 and 5 , and is closed at the upper end 6 and lower end 7 , an opening 8 for filling being kept free at the upper end 6 , and the packaging medium having an inner wall 9 made of air-permeable material which is surrounded by an outer wall 10 of air-impermeable material, characterized in that
  • the outer wall 10 overlaps over a subregion 11 of up to 50% of the total area
  • the inner layer 10 a of the outer wall 10 is perforated
  • the joint is interrupted in a region 16 which covers 10 to 50% of the total length.
  • Suitable air-permeable materials for the inner layer 9 are paper, woven materials or nonwoven materials made of artificial fibres or natural fibres. Preference is given to paper, for example conventional kraft papers having a grammage of 30 to 120 g/m 2 , preferably 60 to 90 g/m 2 .
  • the plastic films which are usual in the packaging sector are suitable, preferably polyolefin films such as polyethylene or polypropylene films and PVC films. The film thickness is generally 20 to 200 ⁇ m.
  • the packaging medium 1 When filled, the packaging medium 1 has a box-like shape.
  • the length is preferably between 30 and 120 cm, particularly preferably 60 to 100 cm.
  • the width is preferably 20 to 80 cm, preferably 40 to 60 cm.
  • the width of the side parts is preferably between 5 and 30 cm, particularly preferably 10 to 20 cm.
  • the opening (filling (valve) opening) 8 at the upper end of the packaging medium 1 preferably has a round or square cross section and is dimensioned such that the sack 1 can be filled via a filling nozzle. In general, diameters from 5 to 20 cm are adequate.
  • the inside of the opening 8 is generally coated with a plastic material, preferably hot melt and/or thermoplastic (for example polyethylene). This permits the opening to be welded by means of ultrasound or heat.
  • the inner, air-permeable material 9 is joined to the outer, air-impermeable material 10 by adhesive bonding.
  • a paper inner layer 9 is preferably adhesively bonded to an outer plastic film 10 only at the upper end 6 and at the bottom 7 .
  • An endless tube is formed and the latter is cut appropriately to length. The ends are then folded, the valve opening is inserted and adhesively bonded. Finally, a covering sheet is adhesively bonded to both ends of the sack.
  • the outer material 10 overlaps over a subregion 11 of up to 50% of the total area of front or rear side 2 , 3 , on the front side 3 or on the rear side 2 or on both sides.
  • the outer wall 10 preferably overlaps only on one of the two sides, particularly preferably only on the rear side 2 , which is the side on which the sack generally rests.
  • the plastic film overlaps over the entire length.
  • the overlap region 11 preferably amounts to 10 to 50% of the total area of the respective side.
  • the inner layer 10 a of the plastic film is perforated.
  • the perforation density is generally 0.5 to 5 holes per cm 2 .
  • the perforation can be applied by means of needling over the entire overlap region 11 or a subregion. 10 to 50% of the area of the overlap region 11 is preferably provided with the perforation. Perforation is preferably carried out over the entire length of the overlap region. A distance of 0.5 to 10 cm from the edges 12 and 13 of the overlap region 11 is particularly preferably maintained, the distance to the edge 12 of the overlap region, which is open, preferably amounting to 2 to 10 cm.
  • the hole size, perforation density and the perforated area depend substantially on how high the passage of air during filling must be. Depending on the requirements, these variables can be adjusted within the above-mentioned limits by those skilled in the art.
  • the inner layer 10 a and the outer layer 10 b of the plastic film are joined to each other, for example with an adhesive seam or welded seam ( 14 , 15 ).
  • the joint is interrupted at one or both edges, preferably only at one edge.
  • the joint is interrupted in a region 16 which covers 10 to 50% of the total length. The interruption is preferably located in the upper half, particularly preferably in the upper third, of the packaging medium 1 , since the residual air is situated at the top during the filling operation.
  • the packaging medium is suitable for the transport and the storage of particulate materials, such as granules, fibres or fine-grained or coarse-grained powders.
  • the packaging medium is particularly suitable for materials that are sensitive to moisture. Examples of these are polymer powders, in particular polymer powders that can be redispersed in water (dispersion powders) or else highly disperse silica, cement, gypsum, dry mixtures containing cement or gypsum such as dry mortar, flour, animal feed, water-soluble, powdery substances such as cement plasticizer, thickening agent.
  • the sack can be labelled, printed or provided with labels in the usual way.
  • FIG. 1 shows a perspective illustration of sack 1 in the empty state.
  • FIG. 2 shows an enlarged partial detail according to the region II in FIG. 1 .
  • FIG. 1 shows a perspective illustration of sack 1 in the empty state, which has a first broad side 2 (rear side) and a second broad side 3 (front side), a first narrow side area 4 and a second narrow side area 5 .
  • the sack is closed at the ends 6 and 7 , a filling opening 8 , not illustrated here, for filling the sack 1 being provided in the region of the end 6 (upper end) to accommodate a filling pipe.
  • the sack 1 has an air-permeable inner wall 9 which is surrounded by an air-impermeable outer wall 10 .
  • the outer wall 10 is designed to overlap in a subregion 11 of, for example, the first broad side 2 , the edges 12 and 13 of the overlap being joined in an airtight manner to the outer wall 10 by means of seams 14 and 15 , for example welded seams.
  • the seam 14 is preferably interrupted in the upper third in a region 16 , forming an air outlet opening 17 .
  • the inner outer wall region 10 a of the overlapping subregion 11 is provided close to the seam 15 with a perforation 18 which permits the passage of the air from the interior of the sack 1 into the channel 19 , formed by the overlapping outer wall regions 10 a and 10 b and the seams 14 and 15 of the overlap, into the open air via the air outlet opening 17 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)
US10/598,848 2004-03-18 2005-03-10 Multi-walled, sack-type packaging Abandoned US20070181459A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004013469.3 2004-03-18
DE102004013469A DE102004013469A1 (de) 2004-03-18 2004-03-18 Mehrwandiges, sackförmiges Verpackungsmittel
PCT/EP2005/002545 WO2005092724A1 (de) 2004-03-18 2005-03-10 Mehrwandiges, sackförmiges verpackungsmittel

Publications (1)

Publication Number Publication Date
US20070181459A1 true US20070181459A1 (en) 2007-08-09

Family

ID=34962879

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/598,848 Abandoned US20070181459A1 (en) 2004-03-18 2005-03-10 Multi-walled, sack-type packaging

Country Status (9)

Country Link
US (1) US20070181459A1 (zh)
EP (1) EP1725466B1 (zh)
JP (1) JP2007535447A (zh)
CN (1) CN1934005B (zh)
AT (1) ATE375307T1 (zh)
DE (2) DE102004013469A1 (zh)
ES (1) ES2293542T3 (zh)
TW (1) TWI303615B (zh)
WO (1) WO2005092724A1 (zh)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080144979A1 (en) * 2006-11-06 2008-06-19 Marko I.R.D.C. Plastic bag with improved air evacuation structure
US20080152266A1 (en) * 2006-12-18 2008-06-26 Bischof + Klein Gmbh & Co. Kg Packaging in the Form of a Bag
US20110188786A1 (en) * 2004-05-27 2011-08-04 Heinemeier Juergen Plastic Bag with Overpressure Relief
EP2619105A4 (en) * 2010-09-23 2015-08-12 Bemis Co Inc MULTILAYER FILM WITH A VALVE AND FILM SHAPED PACKAGE
WO2015125018A1 (de) * 2014-02-20 2015-08-27 Mondi Ag Sack
ES2582611A1 (es) * 2015-03-13 2016-09-14 Industrias Bolcar, S.A. Saco multicapa con salida de presión
WO2019232603A1 (en) 2018-06-05 2019-12-12 Klabin S.A. Constructive arrangement in paper bag
WO2019232602A1 (en) 2018-06-05 2019-12-12 Klabin S.A. Constructive arrangement in paper bag
US10633285B2 (en) 2015-08-31 2020-04-28 Wacker Chemie Ag Additive pack
WO2020153910A1 (en) * 2019-01-21 2020-07-30 Suphantarida Nuttawat Perforated bag for construction materials
USD1096437S1 (en) * 2024-10-14 2025-10-07 Zhuhai Hengqin Huizefeng Packaging Technology Co., Ltd. Packaging bag

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007063783B3 (de) * 2007-04-18 2013-06-27 Abts- Advanced Bag Technology & Service Gmbh Zementsack mit speziellem Laminat
DE102007018579B4 (de) 2007-04-18 2012-03-15 Abts- Advanced Bag Technology & Service Gmbh Zementsack und Herstellverfahren
DE102007063784B3 (de) * 2007-04-18 2013-06-27 Abts- Advanced Bag Technology & Service Gmbh Zementsack mit Öffnungen
EP2088088B1 (de) * 2008-02-06 2012-10-31 Bischof+Klein GmbH & Co. KG Verpackungsbehältnis in Beutel- oder Sackform
DE102009032756A1 (de) * 2009-07-11 2011-01-13 Nordfolien Gmbh Verpackungsbehälter mit Tragehilfe
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
HUP0900669A2 (en) 2009-10-26 2010-07-28 Zoltan Mandzsu Plastic packing bag with overpressure relief, packing method and system
DE202011106386U1 (de) 2011-10-06 2011-11-18 Nordfolien Gmbh Entlüftbarer Verpackungsbehälter
DE102011114969A1 (de) 2011-10-06 2013-04-11 Nordfolien Gmbh Verpackungsbehälter mit Entlüftungskanal
AT512806B1 (de) * 2012-04-23 2014-01-15 Bsw Machinery Handels Gmbh Gewebe für die Herstellung von Säcken
DE202013004058U1 (de) 2013-04-30 2014-08-01 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Papiersack
DE202014000194U1 (de) * 2014-01-10 2015-04-14 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Papiersack
EP3283385A1 (en) * 2015-04-17 2018-02-21 Fiorini Packaging S.p.A. Water resistant bag

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264007A (en) * 1978-06-20 1981-04-28 General Foods Corporation Container having separate storage facilities for two materials
US4596696A (en) * 1983-11-15 1986-06-24 Sybron Corporation Disposable sterilizer mechanical air removal test pack
US4672684A (en) * 1983-10-06 1987-06-09 C I L, Inc. Thermoplastic bag
US5460269A (en) * 1993-02-18 1995-10-24 Schonbek Worldwide Lighting Inc. Skin packaging
US5493844A (en) * 1993-02-10 1996-02-27 Haver & Boecker Packaging container for receiving bulk material, and method of and apparatus for making a flat packaging container as well as ventilating and sealing the filled packaging container
US5987850A (en) * 1997-03-06 1999-11-23 H.F. & Ph. F. Reemtsma Gmbh Process for the application of a revenue seal to a cigarette pack
US6132780A (en) * 1998-10-09 2000-10-17 General Mills, Inc. Container for storing fine particles
US6530471B1 (en) * 1999-08-25 2003-03-11 Best Products Co., Ltd Storage bag
US6821594B2 (en) * 2002-03-13 2004-11-23 Mitsubishi Gas Chemical Company, Inc. Oxygen-absorbing label
US20050053313A1 (en) * 2003-09-09 2005-03-10 Cargill, Inc. Multi-handled sealed bag
US20060110079A1 (en) * 2004-06-29 2006-05-25 Zimmerman Dean A Storage bag

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1486733A1 (de) * 1965-09-25 1969-06-04 Windmoeller & Hoelscher Kunststoff-Ventilsack
GB1401713A (en) * 1973-01-17 1975-07-30 British Visqueen Ltd Plastics sack
DE8314629U1 (de) * 1983-05-18 1983-10-27 Bischof Und Klein Gmbh & Co, 4540 Lengerich Flexibles Verpackungsbehaeltnis in Sack- oder Beutelform
JPS60146042U (ja) * 1984-03-07 1985-09-27 千代田紙業株式会社 多層紙袋
DE19538146A1 (de) * 1995-10-13 1997-04-17 Rovema Gmbh Beutel mit mindestens einer Entlüftungsstelle und Verfahren zur Herstellung des Beutels
JP3215658B2 (ja) * 1997-09-10 2001-10-09 大倉工業株式会社 粒状体収納用袋
JP3902494B2 (ja) * 2001-07-19 2007-04-04 博之 山田 脱気構造を有する袋体及びその製造方法

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264007A (en) * 1978-06-20 1981-04-28 General Foods Corporation Container having separate storage facilities for two materials
US4672684A (en) * 1983-10-06 1987-06-09 C I L, Inc. Thermoplastic bag
US4596696A (en) * 1983-11-15 1986-06-24 Sybron Corporation Disposable sterilizer mechanical air removal test pack
US5493844A (en) * 1993-02-10 1996-02-27 Haver & Boecker Packaging container for receiving bulk material, and method of and apparatus for making a flat packaging container as well as ventilating and sealing the filled packaging container
US5460269A (en) * 1993-02-18 1995-10-24 Schonbek Worldwide Lighting Inc. Skin packaging
US5987850A (en) * 1997-03-06 1999-11-23 H.F. & Ph. F. Reemtsma Gmbh Process for the application of a revenue seal to a cigarette pack
US6132780A (en) * 1998-10-09 2000-10-17 General Mills, Inc. Container for storing fine particles
US6530471B1 (en) * 1999-08-25 2003-03-11 Best Products Co., Ltd Storage bag
US6821594B2 (en) * 2002-03-13 2004-11-23 Mitsubishi Gas Chemical Company, Inc. Oxygen-absorbing label
US20050053313A1 (en) * 2003-09-09 2005-03-10 Cargill, Inc. Multi-handled sealed bag
US20060110079A1 (en) * 2004-06-29 2006-05-25 Zimmerman Dean A Storage bag

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110188786A1 (en) * 2004-05-27 2011-08-04 Heinemeier Juergen Plastic Bag with Overpressure Relief
US8371752B2 (en) 2004-05-27 2013-02-12 Juergen Heinemeier Plastic bag with overpressure relief
US20080144979A1 (en) * 2006-11-06 2008-06-19 Marko I.R.D.C. Plastic bag with improved air evacuation structure
US20080152266A1 (en) * 2006-12-18 2008-06-26 Bischof + Klein Gmbh & Co. Kg Packaging in the Form of a Bag
US8083411B2 (en) 2006-12-18 2011-12-27 Bischof + Klein Gmbh & Co. Kg Packaging in the form of a bag
EP2619105A4 (en) * 2010-09-23 2015-08-12 Bemis Co Inc MULTILAYER FILM WITH A VALVE AND FILM SHAPED PACKAGE
WO2015125018A1 (de) * 2014-02-20 2015-08-27 Mondi Ag Sack
US9873553B2 (en) 2014-02-20 2018-01-23 Mondi Ag Bag
RU2682428C2 (ru) * 2014-02-20 2019-03-19 Монди Аг Мешок
ES2582611A1 (es) * 2015-03-13 2016-09-14 Industrias Bolcar, S.A. Saco multicapa con salida de presión
US10633285B2 (en) 2015-08-31 2020-04-28 Wacker Chemie Ag Additive pack
WO2019232603A1 (en) 2018-06-05 2019-12-12 Klabin S.A. Constructive arrangement in paper bag
WO2019232602A1 (en) 2018-06-05 2019-12-12 Klabin S.A. Constructive arrangement in paper bag
WO2020153910A1 (en) * 2019-01-21 2020-07-30 Suphantarida Nuttawat Perforated bag for construction materials
USD1096437S1 (en) * 2024-10-14 2025-10-07 Zhuhai Hengqin Huizefeng Packaging Technology Co., Ltd. Packaging bag

Also Published As

Publication number Publication date
DE102004013469A1 (de) 2005-10-06
CN1934005A (zh) 2007-03-21
EP1725466B1 (de) 2007-10-10
CN1934005B (zh) 2010-06-02
TWI303615B (en) 2008-12-01
TW200531893A (en) 2005-10-01
ATE375307T1 (de) 2007-10-15
ES2293542T3 (es) 2008-03-16
EP1725466A1 (de) 2006-11-29
WO2005092724A1 (de) 2005-10-06
DE502005001681D1 (de) 2007-11-22
JP2007535447A (ja) 2007-12-06

Similar Documents

Publication Publication Date Title
US20070181459A1 (en) Multi-walled, sack-type packaging
US5845995A (en) Bag made of polymer and especially polyolefine fabric and process for producing it
FI80652B (fi) Termoplastisk transportsaeck.
KR101201171B1 (ko) 종이 백
US5547331A (en) Method for loading bulk material into a cargo container with an aeration/vacuum liner pad system
RU2373122C1 (ru) Многослойный бумажный мешок
RU2065389C1 (ru) Гибкий контейнер
TWI294395B (en) Gusseted bags
CN101678921A (zh) 带有内部嵌条的纸阀口袋
US8083411B2 (en) Packaging in the form of a bag
CN110040341B (zh) 多层袋
US20070248291A1 (en) Vented plastic bag with filter medium
JP4142775B2 (ja) 粒状物用袋、及びその製造方法
KR20060091315A (ko) 사각 바닥면 복합자루
US11292664B2 (en) Flexible large container with a seam-free useful space
NO150393B (no) Ventilsekk av plast
EP1040047B1 (en) Permeable sack
EP0367769A1 (en) Valve bag with venting means
IE48691B1 (en) A plastic bag with a filling entry
TWI810958B (zh) 用於生產具有一體式封閉底部及自封頂部之袋子的裝置及方法及袋子
JP3087194U (ja) 多層梱包袋
US3491656A (en) Vented bag
JPH03176364A (ja) 粉体用包装袋及び粉体包装体の製造方法
JP2008296933A (ja) 三層紙袋
JP2000006995A (ja) 粒状物包装袋、及びその製造方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: WACKER POLYMER SYSTEMS GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LINDLBAUER, FRANZ;REEL/FRAME:018256/0385

Effective date: 20060911

AS Assignment

Owner name: WACKER CHEMIE AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WACKER POLYMER SYSTEMS GMBH & CO. KG;REEL/FRAME:021603/0608

Effective date: 20080801

Owner name: WACKER CHEMIE AG,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WACKER POLYMER SYSTEMS GMBH & CO. KG;REEL/FRAME:021603/0608

Effective date: 20080801

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE