EP0023703A1 - Soupape de surpression pour récipients d'emballage - Google Patents

Soupape de surpression pour récipients d'emballage Download PDF

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Publication number
EP0023703A1
EP0023703A1 EP80104515A EP80104515A EP0023703A1 EP 0023703 A1 EP0023703 A1 EP 0023703A1 EP 80104515 A EP80104515 A EP 80104515A EP 80104515 A EP80104515 A EP 80104515A EP 0023703 A1 EP0023703 A1 EP 0023703A1
Authority
EP
European Patent Office
Prior art keywords
valve
adhesive
underside
strip
thickness
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.)
Granted
Application number
EP80104515A
Other languages
German (de)
English (en)
Other versions
EP0023703B1 (fr
Inventor
Hans Peter Ast
Klaus Dr. Domke
Wolfgang Galsterer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AT80104515T priority Critical patent/ATE3525T1/de
Publication of EP0023703A1 publication Critical patent/EP0023703A1/fr
Application granted granted Critical
Publication of EP0023703B1 publication Critical patent/EP0023703B1/fr
Expired 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element

Definitions

  • the invention relates to a device for relieving the interior of a packaging container filled with roasted coffee or the like from inadmissible overpressure, with a valve covering a hole in the container in the form of a multi-layer composite label.
  • valve In order to preserve the aroma of coffee, when a bag is filled with coffee, the air in the packaging bag is expelled with nitrogen or the bag is evacuated. As the roasted coffee enclosed in the bag releases carbon dioxide over time, it creates an overpressure which must be compensated for so that the bag does not inflate or even bursts. On the one hand, gas should escape from the bag through the valve, but on the other hand no air should be able to penetrate the bag. It goes without saying that the valve complies with the food regulations.
  • the most commonly used containers, such as plastic bags consist of a composite film that has film layers made of aluminum and plastic or a polyester or cellulose as an outer layer. Another requirement is that the valves are insensitive to dust accumulation during application and use.
  • the object of the invention is therefore to provide a device of the type mentioned at the outset which fulfills the stated requirements and moreover can be produced by means of the known adhesive label production technology.
  • the device is characterized by a valve part which has a non-adhesive, strip-shaped valve zone covering the hole on its underside and an adhesive strip on the underside of each of the longitudinal edges thereof.
  • the valve part consists of a cover film which is coated on the underside with adhesive and a valve strip which is not adhesive on both sides and which is bonded to the central zone of the underside of the cover film.
  • valve strips and cover strips can be produced and applied without difficulty.
  • the valve strip with the cover strip basically fulfills the requirements mentioned.
  • the device is preferably characterized in that the valve part is in register with the small parts self-adhesive spacing strips are applied to the underside of the valve part, the thickness of which is greater than that of the valve part.
  • valve strips and cover strips are usually very thin.
  • the device is therefore preferably characterized in that between the wall of the packaging container and the valve part there is a base which is self-adhesive on the underside and is perforated in the region of the bag hole.
  • the Bais ensures the desired stability.
  • the valve strip is preferably made of polyethylene terephthalate and in particular has a thickness of 15 / um to up to 35 / um.
  • the cover strip preferably also consists of polyethylene terephthalate and in particular has a thickness of 15 / um to up to 35 / um.
  • the spacer strips are preferably made of hard polyvinyl chloride and preferably have a thickness of 150 / um to 250 / um.
  • the carrier strip is preferably made of hard polyvinyl chloride, and preferably has a thickness of 150 / um and 250 / um on.
  • the composite label can have any shape in principle, it is preferably limited in a circle for reasons of material savings and ease of processing.
  • valve hole is preferably eccentric to the circular boundary.
  • a bottom side with a silicone solid, non-hardening adhesive layer 3 provided transparent Hartpolyvinylchloridbahn 4 is rolled on a thickness of 200 / um. This composite web 2, 4 then runs through a lifting punch for total punching of several rows of valve holes 10 at equal intervals.
  • valve thickness of 15 / um and 35 / um set 14 from Polyähylenterephtalat.
  • the continuous valve strip 14 covers the valve holes 10 and projects laterally by a small amount. It is of the presence of layering an under-sided adhesive covering foil 16, for example from polyethylene terephthalate having a thickness of 15 / um and 35 / um with a lower-side adhesive layer of a thickness of 10 / um and 20 / um rolled, wherein the not covered by the valve strip 14 adhesive or adhesive strips firmly connect the cover film web 16 to the web 4.
  • the web 16 and the strips 14, 20, 24 are applied in laminating stations known per se.
  • the circular valves 38 designed as composite labels are punched out in a contour punching station and finally the composite material 2, 4, 14, 16, which surrounds the stationary valves 38, the so-called matrix, is pulled off and rolled up.
  • the holes 10 are located eccentrically between the circular outline 42 of the free-punched valves 38.
  • the carrier paper 2 has not been punched through by the contour punch in the contour punch station.
  • the carrier paper 2 with the labels on it is rolled up on a roll. Later, the backing paper 2 can be cut between the rows of valves 38. If desired, the longitudinal cuts 44 between the valves 38 can be made before winding.
  • all materials are preferably transparent.
  • the valve 38 which is manufactured according to the above-described production method and is designed as a composite label, has the following structure (FIG. 2):
  • the valve strip 14 lies loosely on the hole 10. It extends in one direction over the entire base 5 and leaves a circular section surface uncovered on both sides of its longitudinal edges.
  • the cover film which is cut out congruently from the cover film web 16 with the base 5 and which is coated on the entire surface with adhesive on the underside, is with its central zone with the valve strip 14 and with its edge zones with the anlie glued circular section surfaces of the base 5 glued.
  • Spacers 25 punched out of the spacer strips 20, 24 are glued to the edge zones glued to the base 5 and are coated on their underside with adhesive.
  • valves 38 with the adhesive layer 3 on the underside of the base 5 adhere to the carrier strip 2.
  • One valve 38 each is attached via a gas passage opening in a wall of a packaging container, for example a bag.
  • a gas overpressure develops in the bag as a result of the gas being released by the filling material, the gas acts through the hole 10 in FIG.
  • the spacers 25 ensure a free space for the bulging of the valve part 17.
  • the adhesive-free valve channel is produced by covering the valve part 17 with the thin valve strip 14.
  • Such a non-glued valve channel can also be created by a valve part in which the middle zone of its underside is free of adhesive from the outset.
  • the circular section zones adjoining on both sides are coated with adhesive.
  • a cover film web 16 is used, which is coated with adhesive in strips, the adhesive-free zones having a width which is somewhat larger than the width of the holes 10 in the base 5.
  • evaporating liquid for example silicone oil

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
EP80104515A 1979-08-06 1980-07-31 Soupape de surpression pour récipients d'emballage Expired EP0023703B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104515T ATE3525T1 (de) 1979-08-06 1980-07-31 Ueberdruckventil fuer verpackungsbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2931850 1979-08-06
DE19792931850 DE2931850A1 (de) 1979-08-06 1979-08-06 Vorrichtung zur entlastung des innenraums eines mit geroestetem kaffee o.dgl. gefuellten kunststoffbeutels von unzulaessigem ueberdruck

Publications (2)

Publication Number Publication Date
EP0023703A1 true EP0023703A1 (fr) 1981-02-11
EP0023703B1 EP0023703B1 (fr) 1983-05-25

Family

ID=6077751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104515A Expired EP0023703B1 (fr) 1979-08-06 1980-07-31 Soupape de surpression pour récipients d'emballage

Country Status (5)

Country Link
EP (1) EP0023703B1 (fr)
JP (1) JPS5934585B2 (fr)
AT (1) ATE3525T1 (fr)
DE (2) DE2931850A1 (fr)
ES (1) ES8107111A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149695A1 (fr) * 1984-01-21 1985-07-31 Beiersdorf Aktiengesellschaft Soupape de surpression pour un récipient d'emballage
FR2583386A1 (fr) * 1985-06-12 1986-12-19 Sartec Service Ind Valve pour emballage et emballage comportant une telle valve
EP0274553A1 (fr) * 1987-01-13 1988-07-20 Thomas Philipp Procédé pour la préparation des légumes et des fruits frais et l'emballage pour ce procédé
EP0499783A1 (fr) * 1991-02-16 1992-08-26 Robert Bosch Gmbh Valve de surpression pour emballages
WO1993001103A1 (fr) * 1991-07-08 1993-01-21 W.L. Gore & Associates, Inc. Joint d'etancheite laissant s'echapper le gaz sans fuite de liquide pour recipient contenant un liquide
EP0710607A1 (fr) 1994-11-03 1996-05-08 Robert Bosch Gmbh Sac à emballage avec soupape de surpression
FR2796923A1 (fr) 1999-07-29 2001-02-02 Proplast Valve et emballage a valve, notamment pour cuisson d'aliments
WO2001009003A1 (fr) * 1999-07-29 2001-02-08 Proplast Valve et emballage pour cuisson d'aliments
US7051762B2 (en) * 2001-04-30 2006-05-30 Micvac Ab One-way valve
DE102006016594A1 (de) * 2006-04-06 2007-10-18 Tesa Ag Überdruckventil für einen Verpackungsbehälter
US7331715B2 (en) * 2004-01-26 2008-02-19 The Glad Products Company Valve element
US7490623B2 (en) 2004-10-07 2009-02-17 Celomat S.A. Pressure-relief one-way valve applicable to a package containing a gas-releasing product, wherein there coexist a fluid medium and an air bubble, and a package including said valve
US8093975B2 (en) * 2006-09-08 2012-01-10 Siemens Aktiengesellschaft Semiconductor switching module optimized for resistance to short circuits
US20220204238A1 (en) * 2019-06-03 2022-06-30 Yoon Sub SOH Gas discharge valve for packaging material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057069A (ja) * 1983-09-05 1985-04-02 Fujimori Kogyo Kk ガス抜き用弁
JPS6290362U (fr) * 1985-11-27 1987-06-09
DE4243020A1 (de) * 1992-12-18 1994-06-30 Bosch Gmbh Robert Überdruckventil für Verpackungsbehälter
DE4446104C2 (de) * 1994-12-22 1997-04-03 Sisi Werke Gmbh Verfahren und Vorrichtung zum Herstellen eines Getränkebehälters
JP2002308291A (ja) * 2001-04-17 2002-10-23 Hisashi Tanaka 逆止弁付き包装用プラスチックフィルム及びその製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821338A (en) * 1954-10-21 1958-01-28 Melvin R Metzger Valve-equipped container
DE2331862A1 (de) * 1973-06-22 1975-01-16 Hesser Ag Maschf Ventil zur begrenzung des innendrucks in zur aufnahme von gas abgebenden guetern bestimmten verpackungsbehaeltern sowie verfahren zum herstellen des ventils
DE2716299A1 (de) * 1977-04-13 1978-10-19 Bosch Gmbh Robert Druckausgleichsventil fuer einen verpackungsbehaelter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946502A (en) * 1954-11-10 1960-07-26 Melvin R Metzger Valve-equipped containers
DE2537317A1 (de) * 1975-08-21 1977-02-24 Hesser Ag Maschf Druckausgleichventil fuer einen verpackungsbehaelter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821338A (en) * 1954-10-21 1958-01-28 Melvin R Metzger Valve-equipped container
DE2331862A1 (de) * 1973-06-22 1975-01-16 Hesser Ag Maschf Ventil zur begrenzung des innendrucks in zur aufnahme von gas abgebenden guetern bestimmten verpackungsbehaeltern sowie verfahren zum herstellen des ventils
DE2716299A1 (de) * 1977-04-13 1978-10-19 Bosch Gmbh Robert Druckausgleichsventil fuer einen verpackungsbehaelter

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149695A1 (fr) * 1984-01-21 1985-07-31 Beiersdorf Aktiengesellschaft Soupape de surpression pour un récipient d'emballage
FR2583386A1 (fr) * 1985-06-12 1986-12-19 Sartec Service Ind Valve pour emballage et emballage comportant une telle valve
EP0274553A1 (fr) * 1987-01-13 1988-07-20 Thomas Philipp Procédé pour la préparation des légumes et des fruits frais et l'emballage pour ce procédé
EP0499783A1 (fr) * 1991-02-16 1992-08-26 Robert Bosch Gmbh Valve de surpression pour emballages
US5263777A (en) * 1991-02-16 1993-11-23 Robert Bosch Gmbh Overpressure valve for packaging containers
WO1993001103A1 (fr) * 1991-07-08 1993-01-21 W.L. Gore & Associates, Inc. Joint d'etancheite laissant s'echapper le gaz sans fuite de liquide pour recipient contenant un liquide
AU647962B2 (en) * 1991-07-08 1994-03-31 W.L. Gore & Associates, Inc. Liquid non-leaking gas-venting seal for a container containing liquid
EP0710607A1 (fr) 1994-11-03 1996-05-08 Robert Bosch Gmbh Sac à emballage avec soupape de surpression
FR2796923A1 (fr) 1999-07-29 2001-02-02 Proplast Valve et emballage a valve, notamment pour cuisson d'aliments
WO2001009003A1 (fr) * 1999-07-29 2001-02-08 Proplast Valve et emballage pour cuisson d'aliments
US7051762B2 (en) * 2001-04-30 2006-05-30 Micvac Ab One-way valve
US7331715B2 (en) * 2004-01-26 2008-02-19 The Glad Products Company Valve element
US7490623B2 (en) 2004-10-07 2009-02-17 Celomat S.A. Pressure-relief one-way valve applicable to a package containing a gas-releasing product, wherein there coexist a fluid medium and an air bubble, and a package including said valve
DE102006016594A1 (de) * 2006-04-06 2007-10-18 Tesa Ag Überdruckventil für einen Verpackungsbehälter
US8093975B2 (en) * 2006-09-08 2012-01-10 Siemens Aktiengesellschaft Semiconductor switching module optimized for resistance to short circuits
US20220204238A1 (en) * 2019-06-03 2022-06-30 Yoon Sub SOH Gas discharge valve for packaging material
US11987435B2 (en) * 2019-06-03 2024-05-21 Yoon Sub SOH Gas discharge valve for packaging material

Also Published As

Publication number Publication date
JPS5934585B2 (ja) 1984-08-23
ES494004A0 (es) 1981-10-01
DE2931850A1 (de) 1981-02-19
EP0023703B1 (fr) 1983-05-25
ATE3525T1 (de) 1983-06-15
DE3063481D1 (en) 1983-07-07
JPS5632244A (en) 1981-04-01
ES8107111A1 (es) 1981-10-01

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