EP0088725B1 - Verfahren zum Herstellen eines Dosendeckels - Google Patents

Verfahren zum Herstellen eines Dosendeckels Download PDF

Info

Publication number
EP0088725B1
EP0088725B1 EP83810080A EP83810080A EP0088725B1 EP 0088725 B1 EP0088725 B1 EP 0088725B1 EP 83810080 A EP83810080 A EP 83810080A EP 83810080 A EP83810080 A EP 83810080A EP 0088725 B1 EP0088725 B1 EP 0088725B1
Authority
EP
European Patent Office
Prior art keywords
lid
sealing
polyamide
closure strip
sealed
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
EP83810080A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0088725A3 (en
EP0088725A2 (de
Inventor
Siegfried Bloeck
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.)
Rio Tinto 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 AT83810080T priority Critical patent/ATE19224T1/de
Publication of EP0088725A2 publication Critical patent/EP0088725A2/de
Publication of EP0088725A3 publication Critical patent/EP0088725A3/de
Application granted granted Critical
Publication of EP0088725B1 publication Critical patent/EP0088725B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • 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
    • B65D2517/001—Action for opening container
    • B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
    • 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
    • B65D2517/008—Materials of container end panel
    • B65D2517/0082—Coated or laminated metal
    • 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
    • B65D2517/5005—Details of flexible tape or foil-like material with a part of the tape melted through the opening
    • 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
    • B65D2517/5027—Single layer
    • B65D2517/5029—Single layer and connected to container by local areas of adhesive
    • 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
    • B65D2517/5072—Details of hand grip, tear- or lift-tab
    • B65D2517/5083—Details of hand grip, tear- or lift-tab with means facilitating initial lifting of tape, e.g. lift or pull-tabs

Definitions

  • the invention relates to a method for producing a can lid painted on both sides with at least one pouring opening covered by a sealed sealing strip with a sealing surface made of polyamide.
  • This prior art corresponds to the preamble of claim 1 and is known from EP-A-64948. This document was published on November 17, 1982 and therefore falls under Article 54 (3) EPC.
  • Lids made of aluminum, tinplate or tin-free steel are known for beverage cans provided with one or more pouring openings, the pouring openings being covered with a sealed sealing strip.
  • Can lids made of metal are usually provided on both sides with a lacquer layer, for example with a coating of a phenol-epoxy resin.
  • Known sealing strips consist of an aluminum thin strip which is coated on its surface to be sealed with a coating of a thermoplastic material, for example polyamide.
  • the adhesive strength of the polyamide sealing layer on the painted lid surface has increased for cans with high internal pressure - for example cans containing carbonated drinks after a long storage period at temperatures above 30 ° C - proven insufficient.
  • the inventor has set himself the goal of creating a method of the type mentioned at the outset with which the adhesive strength of the sealing strip on the lid can be further increased.
  • the can lid is heated after the sealing strip has been sealed until the polyamide has melted and then cooled.
  • heating the lid in a temperature range of 175 to 300 ° C is sufficient.
  • the duration of the heat depends on the level of the temperature used, i.e. H. at higher temperatures a shorter period of time is sufficient.
  • the closure strip is provided with a free-standing tear tab 5.
  • the area of the closure strip 3 spanning the pouring opening 2 and the tear-open tab 5 have an embossing 6.
  • lids with the sealing strips sealed on were reheated in an air circulating oven at a temperature of 270 ° C. for 20 seconds.
  • 40 cans with a nominal diameter of 65 mm were filled with 0.3 l of a carbonated beverage. Lids with a sealing strip sealed under the conditions mentioned, with and without reheating, were crimped onto 20 cans each. The cans were then stored at 40 ° C; the internal pressure was 4.4 bar.
  • the sealing strips of the non-reheated lids already came off after 5 days of storage. With the reheated lids, there was no sign of the detachment of the sealing strips even after a storage period of 3 months.

Landscapes

  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Laminated Bodies (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Semiconductor Lasers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Closing Of Containers (AREA)
  • Glass Compositions (AREA)
  • Bathtub Accessories (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Steroid Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Medicinal Preparation (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Sealing Material Composition (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP83810080A 1982-03-05 1983-02-25 Verfahren zum Herstellen eines Dosendeckels Expired EP0088725B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810080T ATE19224T1 (de) 1982-03-05 1983-02-25 Verfahren zum herstellen eines dosendeckels.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1380/82A CH653305A5 (de) 1982-03-05 1982-03-05 Verfahren zum herstellen eines dosendeckels.
CH1380/82 1982-03-05

Publications (3)

Publication Number Publication Date
EP0088725A2 EP0088725A2 (de) 1983-09-14
EP0088725A3 EP0088725A3 (en) 1984-05-09
EP0088725B1 true EP0088725B1 (de) 1986-04-16

Family

ID=4209074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810080A Expired EP0088725B1 (de) 1982-03-05 1983-02-25 Verfahren zum Herstellen eines Dosendeckels

Country Status (12)

Country Link
US (1) US4462732A (enExample)
EP (1) EP0088725B1 (enExample)
JP (1) JPS58166014A (enExample)
AT (1) ATE19224T1 (enExample)
AU (1) AU554625B2 (enExample)
CA (1) CA1194397A (enExample)
CH (1) CH653305A5 (enExample)
DE (2) DE3208593C1 (enExample)
DK (1) DK156386C (enExample)
ES (1) ES520208A0 (enExample)
NO (1) NO160771C (enExample)
ZA (1) ZA83874B (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517360A (en) * 1966-07-14 1970-06-23 Bell Aerospace Corp Electromagnetic force motor having linear output characteristics
DE3233106C2 (de) * 1982-09-02 1986-01-09 Schweizerische Aluminium Ag, Chippis Verfahren zum Herstellen eines Dosendeckels
DE3484995D1 (de) * 1983-05-25 1991-10-10 Showa Denko Kk Verfahren zur herstellung von behaelterdeckeln.
JPH0437096Y2 (enExample) * 1984-11-30 1992-09-01
GB2168312B (en) * 1984-12-13 1989-05-17 Metal Box Plc Containers
US4562936A (en) * 1985-02-12 1986-01-07 The Procter & Gamble Company Easy-open laminated container with optional reclosing means and method of making
US4762579A (en) * 1985-12-03 1988-08-09 Toyo Seikan Kaisha, Ltd. Process for producing easily openable closure
US5219086A (en) * 1989-03-29 1993-06-15 Tetra Alfa Holdings S.A. Packing container for liquid, especially pressurized contents
US20070272693A1 (en) * 2006-05-26 2007-11-29 Sonoco Development, Inc. Membrane Lid with Recessed Tab, and Container Incorporating Same
KR102781626B1 (ko) * 2019-07-30 2025-03-17 기쿠오 야마다 덮개체

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552597A (en) * 1969-01-03 1971-01-05 Continental Can Co Easy opening container
US3671356A (en) * 1970-06-08 1972-06-20 Continental Can Co Method of forming a peelable seal between propylene polymer and a carboxylated polypropylene coated surface
US3666138A (en) * 1970-06-15 1972-05-30 Nat Can Corp Container closure
US3727809A (en) * 1970-08-05 1973-04-17 Steel Corp Can end with bonded seal slide
US3855026A (en) * 1971-07-14 1974-12-17 Sonoco Products Co Method of manufacturing container end with protective bead
US4232797A (en) * 1979-05-14 1980-11-11 Waterbury Nelson J Reclosable container
US4170314A (en) * 1978-10-11 1979-10-09 The Continental Group, Inc. Container closure
US4270665A (en) * 1979-06-22 1981-06-02 Toyo Seikan Kaisha, Ltd. Peelable adhesive structure and method for its manufacture
US4332846A (en) * 1980-01-28 1982-06-01 National Distillers & Chemical Corp. Can cover
EP0059635B1 (en) * 1981-03-02 1985-06-05 Toyo Seikan Kaisha Limited Easily openable vessel closure and process for preparation thereof
CH653929A5 (de) * 1981-05-07 1986-01-31 Alusuisse Verfahren zur herstellung eines dosendeckels mit mindestens einem durch einen aufgesiegelten verschlussstreifen verschlossenen ausgiessloch.
US4390104A (en) * 1981-08-19 1983-06-28 U.S. Clinical Products, Inc. Flexible plastic sterile closure system for containers

Also Published As

Publication number Publication date
NO830701L (no) 1983-09-06
AU554625B2 (en) 1986-08-28
DK88683D0 (da) 1983-02-25
JPS58166014A (ja) 1983-10-01
EP0088725A3 (en) 1984-05-09
CA1194397A (en) 1985-10-01
ATE19224T1 (de) 1986-05-15
DK88683A (da) 1983-09-06
DK156386B (da) 1989-08-14
ES8402199A1 (es) 1984-02-16
EP0088725A2 (de) 1983-09-14
AU1162583A (en) 1983-09-08
DE3363010D1 (en) 1986-05-22
ES520208A0 (es) 1984-02-16
CH653305A5 (de) 1985-12-31
DE3208593C1 (de) 1983-07-21
US4462732A (en) 1984-07-31
DK156386C (da) 1990-01-15
ZA83874B (en) 1983-11-30
NO160771C (no) 1989-05-31
JPH0256209B2 (enExample) 1990-11-29
NO160771B (no) 1989-02-20

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