EP1422154A2 - Sac pour le transport des produits sensibles à l'humidité - Google Patents

Sac pour le transport des produits sensibles à l'humidité Download PDF

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Publication number
EP1422154A2
EP1422154A2 EP03007865A EP03007865A EP1422154A2 EP 1422154 A2 EP1422154 A2 EP 1422154A2 EP 03007865 A EP03007865 A EP 03007865A EP 03007865 A EP03007865 A EP 03007865A EP 1422154 A2 EP1422154 A2 EP 1422154A2
Authority
EP
European Patent Office
Prior art keywords
sack
layer
sack according
wall
middle layer
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Withdrawn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
EP03007865A
Other languages
German (de)
English (en)
Other versions
EP1422154A3 (fr
Inventor
Helmut Sellmeier
Uwe Wiegand
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.)
Bischof and Klein SE and Co KG
Original Assignee
Bischof and Klein SE 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 Bischof and Klein SE and Co KG filed Critical Bischof and Klein SE and Co KG
Publication of EP1422154A2 publication Critical patent/EP1422154A2/fr
Publication of EP1422154A3 publication Critical patent/EP1422154A3/fr
Withdrawn legal-status Critical Current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
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • 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 sack for transport more sensitive to moisture Goods, in particular plastic granules.
  • a known sack of this type the bag wall consists of several layers, including one layer of load-bearing Kraft paper and an inner layer made of a thermoplastic film, which forms a vapor barrier.
  • the manufacture of such multilayer bags is extraordinary complex and costly.
  • the fatigue strength and the Safety of the vapor barrier effect often leaves something to be desired.
  • the invention addresses the problem of a quick and inexpensive sack of the type mentioned which can be produced by conventional production machines create a safe vapor barrier effect with a long service life.
  • the invention solves the problem with a bag with the features of Claim 1.
  • the film inner layer forms, if necessary with the middle layer of barrier material, the base layer within the single layer Laminates, while the outer layer of crepe paper essentially as Information carrier and slip protection serves.
  • the sack is on conventional Bag manufacturing machines can be manufactured, are permanently sealed and of high strength.
  • the one for the transport of moisture-sensitive goods, especially plastic granules certain sack 1 illustrated in the drawing has one Wall made of a single-layer, multi-layer laminate.
  • the outer layer 2 consists of creped paper, a barrier material that forms a vapor barrier forms a middle layer 3, and the inner layer 4 consists of a weldable, thermoplastic, preferably polyethylene.
  • the Layers 2 and 3 are through an adhesion promoter layer 5 and layers 3 and 4 connected by an adhesion promoter layer 6.
  • the creped paper forming the outer layer has a basis weight of approximately 70 to 110 g / m 2 , preferably approximately 90 g / m 2 , and forms the protective layer of the laminate.
  • An aluminum foil is preferably used as the middle layer 3 forming the vapor barrier intended.
  • a metal-vapor-coated PET film can also be used or PP film can be provided.
  • a polyester or polyvinyl alcohol film can be used as a middle class 3.
  • the layers 3, 4 of the laminate are adhesive or extrusion-laminated, the laminations forming the adhesive layers 5 and 6, respectively.
  • the middle layer 3 is preferably bound between two films made of polyethylene, which is advantageously of the M-LLDPE type.
  • a polyethylene layer forming the adhesion promoter layer 5 between the outer layer 2 and the middle layer 3 preferably has a basis weight of about 20 to 40 g / m 2 , preferably about 30 g / m 2 , while one forming the adhesion promoter layer 6 between the middle layer 3 and the inner layer 4
  • Polyethylene layer preferably has a basis weight of about 70 to 100 g / m 2 , preferably about 85 g / m 2 . It forms the main base layer within the laminate.
  • the bag is advantageously designed as a gusseted bag, the outer Folded edges 7, 8 and 9, 10 of the side folds 11, 12 in the transverse direction to one another are staggered.
  • the offset dimension is 2 to 5 mm, preferably about 3 mm.
  • the bag wall has a longitudinal closure seam, which is advantageous as a fin seam 13 is formed.
  • the seam area of the fin seam 13 is on the outside the bag wall unfolded and glued to it, using as an adhesive
  • a PU-based hot melt 20 is provided for fixing the fin seam area is.
  • Such a fin seam 13 is particularly resistant under load, because it doesn't jump open and tends to peel.
  • the sack 1 is staggered at its two ends Bottom flaps 14 and 15 closed, which are formed in that a Wall 16 of the sack 1 staggered over the ends 17, 18 of the gussets 11, 12 and the other wall 19 of the sack 1 with respect to the ends of the Side folds is staggered. 1 shows this particularly clearly for the upper bottom flap 14, with 15 corresponding in the lower bottom flap Conditions exist.
  • the bottom flaps 14, 15 with the bag wall are 19 (bottom flap 14) or the bag wall 16 (bottom flap 15) by means of a Hotmelts 20, preferably based on PU, are glued to the bottom flap 14 is shown.
  • the fold lines 21 for the bottom flaps 14, 15 are each so placed that they are staggered at a distance from the respective edge 21 Sack wall 16 or 19 runs.
  • the bag wall is firm enough to withstand all stresses in use
  • the outer layer as crepe paper creates an elasticity that cracks even under heavy strain avoids. In cases where strain is less
  • the outer layer 2 can also play a role from an uncreped kraft paper be educated.
  • the paper outer layer ensures in any case that the Sacks with relatively high resistance to one another Unleash slipping.
  • the outer layer 3 forms a suitable information carrier for informative imprints.
  • the outer layer 3 serves Protection of internal heat-sensitive layers, especially the polyethylene layer 5, using the customer's closure of bags of radiant heat.
  • the sack is absolutely tight, making it sensitive to moisture Goods in the interior of the sack are securely protected against moisture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Laminated Bodies (AREA)
EP03007865A 2002-11-22 2003-04-07 Sac pour le transport des produits sensibles à l'humidité Withdrawn EP1422154A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20218099U DE20218099U1 (de) 2002-11-22 2002-11-22 Sack für den Transport feuchtigkeitsempfindlicher Güter
DE20218099U 2002-11-22

Publications (2)

Publication Number Publication Date
EP1422154A2 true EP1422154A2 (fr) 2004-05-26
EP1422154A3 EP1422154A3 (fr) 2006-10-04

Family

ID=7977231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03007865A Withdrawn EP1422154A3 (fr) 2002-11-22 2003-04-07 Sac pour le transport des produits sensibles à l'humidité

Country Status (3)

Country Link
US (1) US20040101215A1 (fr)
EP (1) EP1422154A3 (fr)
DE (1) DE20218099U1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9751661B2 (en) 2004-08-03 2017-09-05 Pouch Pac Innovations, Llc Flexible pouch and method of forming flexible pouch
US20060062497A1 (en) * 2004-08-03 2006-03-23 Murray R C Flexible pouch with flat seam and method of forming
US20070110932A1 (en) * 2005-11-16 2007-05-17 Bristol-Myers Squibb Company High-barrier packaging material
JP2010533630A (ja) * 2007-07-18 2010-10-28 キャスケイド デザインズ インコーポレイテッド 密封可能の閉鎖システム及びその部材
DE202008008134U1 (de) * 2008-06-17 2009-06-25 Bischof + Klein Gmbh & Co. Kg Seitenfaltenbeutel
US20100293897A1 (en) * 2009-05-21 2010-11-25 Jansen Mark E Heat Activated Adhesives for Bag Closures
US8297840B2 (en) * 2008-12-22 2012-10-30 Coating Excellence International Llc Heat activated adhesives for bag closures
US20110019944A1 (en) * 2008-12-22 2011-01-27 Gary Sargin Method and system for folding and sealing bags
US8475046B2 (en) * 2008-12-22 2013-07-02 Coating Excellence International Llc Heat activated adhesives for bag closures
US8240915B2 (en) * 2008-12-22 2012-08-14 Coating Excellence International Llc Heat activated adhesives for bag closures
US8241193B2 (en) 2008-12-22 2012-08-14 Coating Excellence International Llc Method and apparatus for bag closure and sealing
WO2010132250A2 (fr) * 2009-05-15 2010-11-18 Coating Excellence International Llc Sac avec à soufflets scellables
CN101781446B (zh) * 2010-03-22 2011-08-24 福建师范大学 一种聚对苯二甲酸乙二醇酯瓶回收料制备塑料管件的方法
AU2012247704B2 (en) * 2011-04-29 2014-10-09 Gambro Lundia Ab Package, method for manufacturing a package, and use of such package
DE102012101932A1 (de) * 2012-03-07 2013-09-12 Nordenia Deutschland Halle Gmbh Seitenfaltenbeutel aus einem Kunststoffgewebeverbund sowie Verfahren zu seiner Herstellung
ITMI20121397A1 (it) * 2012-08-07 2014-02-08 Lineapack Chinello S R L Sacchetto, particolarmente per il confezionamento di prodotti alimentari.
WO2019169126A1 (fr) * 2018-03-01 2019-09-06 Nordson Corporation Joint d'ailette soudé par point
PL3901054T5 (pl) 2020-04-20 2026-01-26 Neemann Liteflexpackaging Gmbh & Co. Kg Worek na wiele artykułów higienicznych i sposób jego wytwarzania
WO2021215358A1 (fr) * 2020-04-23 2021-10-28 日本製紙株式会社 Procédé d'emballage et procédé de transport pour polymères de cellulose, et polymère de cellulose emballé
DE102020004962A1 (de) * 2020-08-14 2022-02-17 Mondi Ag Verpackungsbeutel auf Papierbasis sowie Verfahren zur Herstellung eines Verpackungsbeutels
US20240253853A1 (en) 2023-01-30 2024-08-01 Pratt Corrugated Holdings, Inc. Meal kit assembly
US20240317481A1 (en) * 2023-04-28 2024-09-26 Pratt Corrugated Holdings, Inc. Film deposition delivery container
US12264006B1 (en) 2023-12-21 2025-04-01 Pratt Corrugated Holdings, Inc. Insulated packaging liner
USD1083588S1 (en) 2023-12-28 2025-07-15 Pratt Corrugated Holdings, Inc. Packaging insert
US12497229B2 (en) 2024-01-29 2025-12-16 Pratt Corrugated Holdings, Inc. Packaging assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1074712A (en) * 1965-05-17 1967-07-05 William Palfrey Ltd Paper sacks
US3529765A (en) * 1968-10-18 1970-09-22 Du Pont Heat-sealable gusseted bag
US3784085A (en) * 1971-03-17 1974-01-08 Hudson Pulp & Paper Corp Multiwall bag construction
FR2362769A1 (fr) * 1976-08-30 1978-03-24 Bernhardt & Cie Element d'emballage en forme de sac, notamment pour produits granuleux, pulverulents ou liquides, et son procede de fabrication
JP2784850B2 (ja) * 1991-06-28 1998-08-06 富士写真フイルム株式会社 写真感光材料用易開封性包装体及びその製造方法
FR2704480B1 (fr) * 1993-04-28 1996-02-02 Hosokawa Yoko Kk Film stratifie et son procede de fabrication ainsi que recipient obtenu a partir d'un tel film stratifie.
KR100352785B1 (ko) * 1998-03-10 2002-09-16 미쓰이 가가쿠 가부시키가이샤 에틸렌계 공중합체 조성물 및 그 용도
DE20005048U1 (de) * 2000-03-20 2000-06-08 Stollpack Verpackungs GmbH, 51427 Bergisch Gladbach Warmhaltebeutel

Also Published As

Publication number Publication date
EP1422154A3 (fr) 2006-10-04
DE20218099U1 (de) 2003-02-27
US20040101215A1 (en) 2004-05-27

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