EP1607339B1 - Kunststoffsack mit Überdruckenlüftung - Google Patents

Kunststoffsack mit Überdruckenlüftung Download PDF

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Publication number
EP1607339B1
EP1607339B1 EP04012528A EP04012528A EP1607339B1 EP 1607339 B1 EP1607339 B1 EP 1607339B1 EP 04012528 A EP04012528 A EP 04012528A EP 04012528 A EP04012528 A EP 04012528A EP 1607339 B1 EP1607339 B1 EP 1607339B1
Authority
EP
European Patent Office
Prior art keywords
packaging container
region
wall
sealed
glued
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.)
Expired - Lifetime
Application number
EP04012528A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1607339A1 (de
Inventor
Jürgen Heinemeier
Burkkhard Lückmann
Günther Reimann
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.)
RKW SE
Original Assignee
RKW AG Rheinische Kunststoffwerke
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=34925147&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1607339(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by RKW AG Rheinische Kunststoffwerke filed Critical RKW AG Rheinische Kunststoffwerke
Priority to ES04012528T priority Critical patent/ES2305612T3/es
Priority to EP04012528A priority patent/EP1607339B1/de
Priority to PL04012528T priority patent/PL1607339T3/pl
Priority to AT04012528T priority patent/ATE390364T1/de
Priority to SI200430749T priority patent/SI1607339T1/sl
Priority to DE502004006665T priority patent/DE502004006665D1/de
Priority to DK04012528T priority patent/DK1607339T3/da
Priority to PT04012528T priority patent/PT1607339E/pt
Priority to DE202005021161U priority patent/DE202005021161U1/de
Priority to US11/138,641 priority patent/US7927015B2/en
Priority to CNB2005800167600A priority patent/CN100532215C/zh
Priority to JP2007513810A priority patent/JP2008500241A/ja
Priority to MXPA06013132A priority patent/MXPA06013132A/es
Priority to BRPI0510651A priority patent/BRPI0510651B1/pt
Priority to PCT/EP2005/005719 priority patent/WO2005115856A1/de
Priority to EA200602128A priority patent/EA010143B1/ru
Priority to CA2568289A priority patent/CA2568289C/en
Publication of EP1607339A1 publication Critical patent/EP1607339A1/de
Priority to NO20064965A priority patent/NO344897B1/no
Priority to IL179247A priority patent/IL179247A/en
Publication of EP1607339B1 publication Critical patent/EP1607339B1/de
Application granted granted Critical
Priority to CY20081100662T priority patent/CY1110367T1/el
Priority to US13/038,458 priority patent/US8371752B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • 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

Definitions

  • the present invention relates to flexible plastic packaging containers.
  • Plastic packaging is characterized by the fact that they are lightweight, stable, relatively dense, in particular water and airtight, and thereby inexpensive. They are therefore used extensively in the packaging of free-flowing solids in very many fields, such as e.g. in the chemical industry (granules etc.), in the garden sector (potting soil, fertilizer) and in the food industry.
  • the packaging container is made of an endless film web, usually directly before filling.
  • Either the endless film web is produced as a tube, or it is done by rounding and welding or gluing in the longitudinal direction, first, the formation of a tube of a flat film.
  • the hose is fed to the bottling plant, where a first welding or adhesive seam forms the bottom in the transverse direction and after filling of the contents the container is closed at the top by a second welding or gluing seam in the transverse direction.
  • block bottom bags To avoid these problems, it is known in so-called block bottom bags to provide a valve in the soil, through which the overpressure in the Bottling escapes.
  • block bottom bags and especially those with elaborate valve constructions are not desirable for reasons of cost for comparatively inexpensive products such as building materials.
  • the EP 444 261 describes flexible packaging containers having the features of the preamble of claim 1, in the form of a bag or bag, in which a vent by perforations in a region of the container takes place in which this is formed in two layers.
  • each perforations are provided in the inner and the outer wall, wherein the perforations in the outer wall should have a smaller cross-sectional area than that in the inner wall.
  • the venting then takes place in that an overpressure builds up between the inner and the outer wall, which is intended to allow a controlled outflow.
  • a filter is required between the inner and outer walls in order to prevent the contents from escaping.
  • these immediately after the escape of pressure overlying perforations form an inlet for air, water and other impurities.
  • the not pre-published WO 2005/092724 relates to packaging containers with an inner air-permeable layer and an outer air-tight and watertight layer in which an area between the inner and outer wall allows venting in the filling by the longitudinal seam in this area over 10 to 50% is open.
  • An overpressure relief of the filled and closed bags is neither addressed nor possible.
  • the interruption of the seam should be firmly closed in the stacked state by the weight of the placed containers.
  • DE 195 38 146 also relates to a venting during filling and provides for this purpose permanent openings of the longitudinal seam.
  • Overpressure ventilation filled and closed bags is only possible, as long as they are not stacked
  • the open longitudinal seam in turn allows moisture to penetrate and also escape of filling material.
  • US 5,922,162 describes bags with openings in the area of the upper closure seam, which are connected via a labyrinthine way to the interior of the container. This type of closure is complex.
  • CH 494 169 Containers are described as having a vent during filling, with release media resulting in the interruption of sutures. To ensure against ingress of contaminants and leakage of filling the known long ways between the openings to the interior and to the outside are necessary.
  • Suitable packaging containers for the purposes of the present invention include, inter alia, FFS hoses, block bags, open gusseted and / or flax sacks, valve box sacks (glued and welded), crossfloor sacks, automatic flat film, etc., in particular FFS packaging.
  • packaging containers are particularly preferred in which the production takes place from a flat film, so that an overlap exists between the outer edges of the film web in the longitudinal direction as a result of production, which can serve as a region between the inner and outer walls. In these packaging containers, a separate training this area is therefore not necessary.
  • the area between the inner and outer wall can be formed by applying a separate film by means of welding or adhesive bond on the film forming the packaging container.
  • one or both welded or adhesive seams or seams are designed to be gas-permeable in the transverse direction.
  • a preferred way to form the gas permeability is to the surface of the film at the points to be joined or in total by applying a separating medium or by corona treatment to change so that the compound has a reduced strength.
  • the order or the treatment can be unilateral or multi-sided, full-surface or partial.
  • Suitable media are all media that prevent welding or bonding of the plastic film, such as oils, fats, paints, coatings, powdered solids, etc.
  • the weakened connection seam ensures a controlled gas outlet for reducing an overpressure occurring during or after the filling.
  • the use of filters or the like, which were required in the prior art to prevent leakage of contents, is not necessary because the openings in the inner wall are covered by the dense, outer wall.
  • leakage even of very fine particles is almost impossible. This is due to the fact that adhesion forces act between the two films, which are only partially firmly bonded, which bring about a certain adhesion even without a firm connection by welding or gluing. Only if the adhesion forces are overcome by a pressure difference, such as the overpressure which develops during or after filling, does the seam open and allow the overpressure to escape.
  • the openings in the inner wall are preferably perforations formed by needling. But it is also possible to provide slots or other gas passage permitting openings.
  • the openings, in particular for very fine products, are preferably arranged in such a way that the greatest possible distance from the openings to the (partial) region of the connecting seam results, which enables the gas to escape.
  • a preferred embodiment therefore has openings which are arranged centrally in the longitudinal direction, and the gas outlet permitting partial region is formed in one or both transverse seams.
  • spacers may be provided between the inner and the outer wall.
  • the preparation of the packaging containers according to the invention is essentially the same as that of not with a positive pressure vent provided containers. It is only necessary prior to the attachment of at least one seam, the additional step of a surface treatment, through which in the subsequent production of the seam, a gas permeability of the same is achieved at least in some areas.
  • FIG. 1 shows a side view of an out of the invention FFS packaging.
  • FIG. 2 shows a section along the line AA in FIG. 1 ,
  • FIG. 1 is an FFS tube 1 to see, which is made of a plastic film by this was folded in the longitudinal direction so that between the two outer edges of the film 2 and 3, a region 4 with an inner wall 5 and an outer wall 6 (see. FIG. 2 ) is formed.
  • Two weld seams 7 and 8 in the longitudinal direction fix the outer edges 2 and 3 of the film with the underlying or overlying film, so that a hose is formed.
  • the packaging container is provided with a bottom seam 9 before filling and after filling with a weld 10 which closes the package.
  • the outer edge 2 of the film is provided on the later to the interior 14 of the container 1 side facing with a release coating 11, which causes the weld 7 allows a gas outlet. Furthermore, along the outer edge 3 in the longitudinal direction perforations 12 and embossments 13 are attached.
  • the gas will enter the region 4 through the perforations 12 and is discharged from there through the gas-permeable weld seam 7 to the outside. Any infiltration of contents in the area 4 is harmless, as this can hardly escape through the weld. Also, an ingress of contaminants in the interior 14 is not to be feared, since after the reduction of the overpressure, the inner and the outer film are close to each other and are fixed by adhesive forces in this position.
  • FIG. 3 shows an FFS packaging with a gas-permeable seam. Identical parts are marked with the same reference numbers.
  • FIG. 3 recognizes a FFS tube 1, in which instead of the release coating, a corona-treated portion 11 'is provided.
  • the transverse welds 9 and 10 thereby allow at the point where the area 11 'is located, a gas outlet at overpressure.
  • the openings are formed as perforations 12 only in the middle of the bag. Spacers are not provided here.
  • This packaging is particularly suitable for very finely divided contents, since there is a particularly long way from the openings to the area of the gas outlet. As a result, leakage of filling material can be virtually completely prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP04012528A 2004-05-27 2004-05-27 Kunststoffsack mit Überdruckenlüftung Expired - Lifetime EP1607339B1 (de)

Priority Applications (21)

Application Number Priority Date Filing Date Title
ES04012528T ES2305612T3 (es) 2004-05-27 2004-05-27 Saco de plastico con ventilacion de alivio de sobrepresion.
EP04012528A EP1607339B1 (de) 2004-05-27 2004-05-27 Kunststoffsack mit Überdruckenlüftung
PL04012528T PL1607339T3 (pl) 2004-05-27 2004-05-27 Worek z tworzywa sztucznego z odpowietrzaniem
AT04012528T ATE390364T1 (de) 2004-05-27 2004-05-27 Kunststoffsack mit überdruckenlüftung
SI200430749T SI1607339T1 (sl) 2004-05-27 2004-05-27 Vrečka iz umetne mase z nadtlačnim prezračevanjem
DE502004006665T DE502004006665D1 (de) 2004-05-27 2004-05-27 Kunststoffsack mit Überdruckenlüftung
DK04012528T DK1607339T3 (da) 2004-05-27 2004-05-27 Kunststofsæk med overtryksudluftning
PT04012528T PT1607339E (pt) 2004-05-27 2004-05-27 Saco de material plástico com ventilação de sobrepressão
MXPA06013132A MXPA06013132A (es) 2004-05-27 2005-05-27 Bolsa de plastico con caracteristica de alivio de sobrepresion.
US11/138,641 US7927015B2 (en) 2004-05-27 2005-05-27 Plastic bag with overpressure relief
CNB2005800167600A CN100532215C (zh) 2004-05-27 2005-05-27 有超压通气装置的塑料袋
JP2007513810A JP2008500241A (ja) 2004-05-27 2005-05-27 過剰圧力逃がしを備えたプラスチックバッグ
DE202005021161U DE202005021161U1 (de) 2004-05-27 2005-05-27 Kunststoffsack mit Überdruckentlüftung
BRPI0510651A BRPI0510651B1 (pt) 2004-05-27 2005-05-27 saco de material plástico com ventilação de sobrepressão
PCT/EP2005/005719 WO2005115856A1 (de) 2004-05-27 2005-05-27 Kunststoffsack mit überdruckentlüftung
EA200602128A EA010143B1 (ru) 2004-05-27 2005-05-27 Полимерная упаковка со сбросом избыточного давления
CA2568289A CA2568289C (en) 2004-05-27 2005-05-27 Plastic bag featuring overpressure relief
NO20064965A NO344897B1 (no) 2004-05-27 2006-10-30 Plastbeholder omfattende overtrykksavlastning
IL179247A IL179247A (en) 2004-05-27 2006-11-14 Plastic bag featuring overpressure relief
CY20081100662T CY1110367T1 (el) 2004-05-27 2008-06-24 Μια πλαστικη σακκουλα με εξαερωση της υπερπιεσης
US13/038,458 US8371752B2 (en) 2004-05-27 2011-03-02 Plastic bag with overpressure relief

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04012528A EP1607339B1 (de) 2004-05-27 2004-05-27 Kunststoffsack mit Überdruckenlüftung

Publications (2)

Publication Number Publication Date
EP1607339A1 EP1607339A1 (de) 2005-12-21
EP1607339B1 true EP1607339B1 (de) 2008-03-26

Family

ID=34925147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04012528A Expired - Lifetime EP1607339B1 (de) 2004-05-27 2004-05-27 Kunststoffsack mit Überdruckenlüftung

Country Status (19)

Country Link
US (2) US7927015B2 (es)
EP (1) EP1607339B1 (es)
JP (1) JP2008500241A (es)
CN (1) CN100532215C (es)
AT (1) ATE390364T1 (es)
BR (1) BRPI0510651B1 (es)
CA (1) CA2568289C (es)
CY (1) CY1110367T1 (es)
DE (2) DE502004006665D1 (es)
DK (1) DK1607339T3 (es)
EA (1) EA010143B1 (es)
ES (1) ES2305612T3 (es)
IL (1) IL179247A (es)
MX (1) MXPA06013132A (es)
NO (1) NO344897B1 (es)
PL (1) PL1607339T3 (es)
PT (1) PT1607339E (es)
SI (1) SI1607339T1 (es)
WO (1) WO2005115856A1 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2149504A1 (de) 2008-07-30 2010-02-03 Nordfolien GmbH Verpackung aus Kunststoffolie
EP2792609A1 (de) 2013-04-18 2014-10-22 Nordfolien GmbH Verpackungsbehältnis für Schüttgüter
DE202014007340U1 (de) 2014-09-15 2015-12-18 Bischof + Klein Gmbh & Co. Kg Flexibles Verpackungsbehältnis

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SI1607339T1 (sl) * 2004-05-27 2008-08-31 Rkw Ag Rheinische Kunststoffwerke Vrečka iz umetne mase z nadtlačnim prezračevanjem
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US20080144979A1 (en) * 2006-11-06 2008-06-19 Marko I.R.D.C. Plastic bag with improved air evacuation structure
DE202006019054U1 (de) * 2006-12-18 2008-04-30 Bischof + Klein Gmbh & Co. Kg Verpackungsbehältnis in Beutel- oder Sackform
US7886412B2 (en) 2007-03-16 2011-02-15 S.C. Johnson Home Storage, Inc. Pouch and airtight resealable closure mechanism therefor
US7784160B2 (en) 2007-03-16 2010-08-31 S.C. Johnson & Son, Inc. Pouch and airtight resealable closure mechanism therefor
US8197139B2 (en) * 2007-06-15 2012-06-12 S.C. Johnson Home Storage, Inc. Valve and valve strip for a reclosable container
US7946766B2 (en) 2007-06-15 2011-05-24 S.C. Johnson & Son, Inc. Offset closure mechanism for a reclosable pouch
US7857515B2 (en) 2007-06-15 2010-12-28 S.C. Johnson Home Storage, Inc. Airtight closure mechanism for a reclosable pouch
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US7874731B2 (en) 2007-06-15 2011-01-25 S.C. Johnson Home Storage, Inc. Valve for a recloseable container
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DE102008046173B4 (de) * 2008-09-06 2010-06-17 Nordfolien Gmbh Verpackungsbehälter aus Kunststofffolie
DE102008049391A1 (de) * 2008-09-27 2010-04-29 Nordfolien Gmbh Verpackung für Schüttgüter
HUE026172T2 (en) * 2008-11-26 2016-05-30 Karatzis S A Packing bag
HUP0900669A2 (en) * 2009-10-26 2010-07-28 Zoltan Mandzsu Plastic packing bag with overpressure relief, packing method and system
CA2697780A1 (en) * 2009-12-31 2011-06-30 Emballage Rouville Inc. Deflatable bag with laterally perforated liner and non-adjacent humidity barrier
CN102320410A (zh) * 2011-05-31 2012-01-18 枝江奥美医疗用品有限公司 一种枕形包装袋及其包装机
US9555947B2 (en) 2012-05-31 2017-01-31 Berry Plastics Corporation Vented steam cooking package
MY182275A (en) 2012-07-13 2021-01-18 Basf Agro B V Arnhem Nl Zurich Branch Evacuable packaging for insecticide-impregnated nets
DE102013000038A1 (de) * 2013-01-03 2014-07-03 Mondi Ag Sack mit einer Entlüftungseinrichtung
US20150075116A1 (en) * 2013-09-16 2015-03-19 Lorelei Hepburn Cartridge for a plant-treatment product sprayer, and related methods
US20150122841A1 (en) * 2013-11-06 2015-05-07 The Procter & Gamble Company Easy to empty flexible containers
WO2015069857A1 (en) * 2013-11-06 2015-05-14 The Procter & Gamble Company Flexible containers with vent systems
CN105705428B (zh) 2013-11-06 2018-06-19 宝洁公司 具有柔性阀的柔性容器
CN107406184B (zh) 2015-04-10 2019-07-12 宝洁公司 带有整体分配喷管的柔性容器
KR101971817B1 (ko) 2015-04-10 2019-04-23 더 프록터 앤드 갬블 캄파니 제품 분배 가시화부를 가진 가요성 용기
CN109996736A (zh) * 2016-09-27 2019-07-09 温德莫勒及霍尔希尔公司 塑料袋、尤其是ffs袋以及用于制造和用于填装袋的方法和设备
DE102016220428A1 (de) * 2016-09-27 2018-03-29 Windmöller & Hölscher Kg Ventilsack sowie Verfahren und System zur Herstellung eines Ventilsacks
CN106927129A (zh) * 2017-04-21 2017-07-07 东莞市康巢建材有限公司 一种可排空内部空气的包装袋
DE102019130409A1 (de) 2019-11-12 2021-05-12 Rkw Se Kaschierverbund
WO2021241568A1 (ja) * 2020-05-28 2021-12-02 キョーラク株式会社 包装袋
US20230054277A1 (en) * 2021-08-12 2023-02-23 Cj Cheiljedang Corporation Pouch for retort food

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EP2149504A1 (de) 2008-07-30 2010-02-03 Nordfolien GmbH Verpackung aus Kunststoffolie
DE102008035700A1 (de) 2008-07-30 2010-02-04 Nordfolien Gmbh Verpackung aus Kunststofffolie
EP2792609A1 (de) 2013-04-18 2014-10-22 Nordfolien GmbH Verpackungsbehältnis für Schüttgüter
DE202014010715U1 (de) 2013-04-18 2016-05-23 Nordfolien Gmbh Verpackungsbehältnis für Schüttgüter
DE202014007340U1 (de) 2014-09-15 2015-12-18 Bischof + Klein Gmbh & Co. Kg Flexibles Verpackungsbehältnis

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BRPI0510651A (pt) 2007-11-20
DK1607339T3 (da) 2008-07-21
DE202005021161U1 (de) 2007-04-05
US8371752B2 (en) 2013-02-12
US20110188786A1 (en) 2011-08-04
JP2008500241A (ja) 2008-01-10
CY1110367T1 (el) 2015-04-29
US7927015B2 (en) 2011-04-19
PT1607339E (pt) 2008-06-30
EP1607339A1 (de) 2005-12-21
BRPI0510651B1 (pt) 2017-02-14
PL1607339T3 (pl) 2008-10-31
IL179247A0 (en) 2007-03-08
NO344897B1 (no) 2020-06-22
MXPA06013132A (es) 2007-07-24
US20050281493A1 (en) 2005-12-22
WO2005115856A1 (de) 2005-12-08
EA010143B1 (ru) 2008-06-30
EA200602128A1 (ru) 2007-04-27
CA2568289C (en) 2012-08-14
ES2305612T3 (es) 2008-11-01
NO20064965L (no) 2007-02-27
CN1956893A (zh) 2007-05-02
CA2568289A1 (en) 2005-12-08
SI1607339T1 (sl) 2008-08-31
IL179247A (en) 2010-11-30
CN100532215C (zh) 2009-08-26
DE502004006665D1 (de) 2008-05-08
ATE390364T1 (de) 2008-04-15

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