EP0105026B1 - Verfahren zum Herstellen eines Dosendeckels - Google Patents

Verfahren zum Herstellen eines Dosendeckels Download PDF

Info

Publication number
EP0105026B1
EP0105026B1 EP83810353A EP83810353A EP0105026B1 EP 0105026 B1 EP0105026 B1 EP 0105026B1 EP 83810353 A EP83810353 A EP 83810353A EP 83810353 A EP83810353 A EP 83810353A EP 0105026 B1 EP0105026 B1 EP 0105026B1
Authority
EP
European Patent Office
Prior art keywords
sealing
lid
closure strip
strip
die
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
Application number
EP83810353A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0105026A1 (de
Inventor
Siegfried Bloeck
Oldrich Stanek
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.)
Alcan Holdings Switzerland AG
Original Assignee
Schweizerische Aluminium AG
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 Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG
Priority to AT83810353T priority Critical patent/ATE21055T1/de
Publication of EP0105026A1 publication Critical patent/EP0105026A1/de
Application granted granted Critical
Publication of EP0105026B1 publication Critical patent/EP0105026B1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0089—Unusual details
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5024—Material
    • B65D2517/5032—Laminated
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5037—Unusual details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness

Definitions

  • the invention relates to a method for producing a can lid coated at least on its outer surface according to the preamble of claim 1. This is based on a prior art according to DE-A-2 519 709.
  • the sealing strip is provided with a polypropylene layer that connects the sealing strip to the can lid via an adhesive material.
  • beverage cans are generally made in one piece from tinplate, tin-free steel or aluminum, and after filling with a desired content through a lid, also from the above-mentioned. Materials closed.
  • a pouring opening for example, is punched into these lids in an upstream working aisle and covered again with a sealing strip.
  • the lid has a coating with a lacquer layer, for example a phenol epoxy resin, the sealing strips, e.g. B. from an aluminum thin strip, a coating of a thermoplastic material, such as a polyamide.
  • the lid is placed on a preheated under-sealing tool and the sealing strip is sealed around the pouring opening by a likewise heated upper sealing tool by melting the polyamide sealing layer.
  • the sealing seam must withstand an internal pressure of over 4 bar and temperatures of over 30 ° C for longer periods.
  • the sealing strip or tape must be heated shortly before it is sealed so that the vaporizable and thus bubble-forming substance cannot reappear on the sealing layer.
  • a time period of 10 to 15 seconds has proven to be sufficient.
  • the heating device for example an infrared radiator, should be arranged directly in front of the sealing tool or a device punching out the sealing strip.
  • An aluminum thin strip with a polyamide layer is sealed onto a pouring opening on a lid made of tin-free steel, which is coated on both sides.
  • the temperature of the upper sealing tool is 250 ° C, that of the lower 170 ° C.
  • the specific sealing pressure is 2000 N / cm 2 .
  • the aluminum thin strip passes through a convection oven preheated to 170 ° C.
  • preheating the tape within about 10 seconds is sufficient to eliminate blistering.
  • the strip in the preheating furnace reaches a temperature of approximately 115 to 120 ° C.
  • the waiting time between preheating and sealing should not exceed 30 seconds. Which duration of preheating and which temperature is selected in the convection oven depends on the production conditions. In any case, the limit is set by the tape material itself, since a tape which, for. B. was heated for 1 min at 170 ° C, can no longer seal properly.
  • the sealed seams produced by the process according to the invention can be melted free of bubbles even at temperatures of over 210 ° C. with a heating time of 1 minute.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Closures For Containers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Closing Of Containers (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Glass Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Table Equipment (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
EP83810353A 1982-09-02 1983-08-10 Verfahren zum Herstellen eines Dosendeckels Expired EP0105026B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810353T ATE21055T1 (de) 1982-09-02 1983-08-10 Verfahren zum herstellen eines dosendeckels.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH521882 1982-09-02
CH5218/82 1982-09-02

Publications (2)

Publication Number Publication Date
EP0105026A1 EP0105026A1 (de) 1984-04-04
EP0105026B1 true EP0105026B1 (de) 1986-07-30

Family

ID=4289923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810353A Expired EP0105026B1 (de) 1982-09-02 1983-08-10 Verfahren zum Herstellen eines Dosendeckels

Country Status (11)

Country Link
US (1) US4529468A (xx)
EP (1) EP0105026B1 (xx)
JP (1) JPS5964130A (xx)
AT (1) ATE21055T1 (xx)
AU (1) AU565283B2 (xx)
CA (1) CA1225974A (xx)
DE (2) DE3233106C2 (xx)
DK (1) DK155694C (xx)
ES (1) ES8407313A1 (xx)
NO (1) NO155382C (xx)
ZA (1) ZA835907B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762579A (en) * 1985-12-03 1988-08-09 Toyo Seikan Kaisha, Ltd. Process for producing easily openable closure
CH673696A5 (xx) * 1987-03-16 1990-03-30 Meta Fer Holding S A Societe A
DE10108009A1 (de) * 2001-02-20 2002-08-29 Schmalbach Lubeca Deckelabdeckung
USD637489S1 (en) 2010-12-10 2011-05-10 Pactiv Corporation Pull grip feature of a container lid
USD638704S1 (en) 2010-12-10 2011-05-31 Pactiv Corporation Container lid

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH266427A (de) * 1946-12-23 1950-01-31 Wicanders Korkfabriker Ab Verfahren zur Herstellung von Flaschen-Verschlusskapseln durch Ausstanzen von Blechstreifen und Einrichtung zur Durchführung dieses Verfahrens.
US3292828A (en) * 1964-09-17 1966-12-20 Nat Can Corp Easy opening can end
US3380622A (en) * 1966-12-15 1968-04-30 Procter & Gamble Method and material for hermetically sealing containers
NL6804634A (xx) * 1968-04-02 1969-10-06
GB1361653A (en) * 1970-10-21 1974-07-30 Dynamit Nobel Ag Use of hot melt adhesives in bonding sheet materials
JPS5037690B2 (xx) * 1971-08-04 1975-12-04
US4004530A (en) * 1973-05-29 1977-01-25 Continental Can Company, Inc. Method for making an easy opening end closure for a container
US4029033A (en) * 1974-09-18 1977-06-14 The Continental Group, Inc. Convenience opening of containers for liquid products
DE2519709B2 (de) * 1974-09-18 1979-07-12 The Continental Group, Inc., New York, N.Y. (V.St.A.) öffnungseinrichtung an einem Deckel, insbesondere aus Metall sowie Verfahren zu seiner Herstellung
CH629983A5 (de) * 1978-06-06 1982-05-28 Alusuisse Verfahren zur herstellung von deckelringen fuer konservendosen.
DE2908397A1 (de) * 1979-03-03 1980-09-04 Akerlund & Rausing Ab Verfahren zum verschliessen eines kartonbehaelters und vorrichtung zur durchfuehrung des verfahrens
CH641109A5 (de) * 1979-10-16 1984-02-15 Alusuisse Druckwiderstandsfaehiger deckel fuer getraenkedosen.
JPS601216B2 (ja) * 1981-03-02 1985-01-12 東洋製罐株式会社 易開封性容器蓋及びその製法
CH653929A5 (de) * 1981-05-07 1986-01-31 Alusuisse Verfahren zur herstellung eines dosendeckels mit mindestens einem durch einen aufgesiegelten verschlussstreifen verschlossenen ausgiessloch.
CH653305A5 (de) * 1982-03-05 1985-12-31 Alusuisse Verfahren zum herstellen eines dosendeckels.

Also Published As

Publication number Publication date
AU565283B2 (en) 1987-09-10
DE3233106A1 (de) 1984-03-08
DE3233106C2 (de) 1986-01-09
ES525294A0 (es) 1984-10-01
EP0105026A1 (de) 1984-04-04
DK155694C (da) 1989-09-25
ZA835907B (en) 1984-04-25
JPH0353057B2 (xx) 1991-08-13
NO833121L (no) 1984-03-05
NO155382B (no) 1986-12-15
DK155694B (da) 1989-05-01
AU1789383A (en) 1984-03-08
JPS5964130A (ja) 1984-04-12
NO155382C (no) 1987-03-25
US4529468A (en) 1985-07-16
ES8407313A1 (es) 1984-10-01
DK397783D0 (da) 1983-09-01
DK397783A (da) 1984-03-03
ATE21055T1 (de) 1986-08-15
CA1225974A (en) 1987-08-25
DE3364947D1 (en) 1986-09-04

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