GB1473506A - production of lidded containers - Google Patents

production of lidded containers

Info

Publication number
GB1473506A
GB1473506A GB4783073A GB4783073A GB1473506A GB 1473506 A GB1473506 A GB 1473506A GB 4783073 A GB4783073 A GB 4783073A GB 4783073 A GB4783073 A GB 4783073A GB 1473506 A GB1473506 A GB 1473506A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
sheet
lid
container
subjected
discharge
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
GB4783073A
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.)
SIDAPLAX LIDS FOR CONTAINERS A
Sidaplax Lids For Containers And Process For
Original Assignee
SIDAPLAX LIDS FOR CONTAINERS AND PROCESS FOR THE
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D77/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10Container closures formed after filling
    • B65D77/20Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/76Making non-permanent or releasable joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/02Preparation of the material, in the area to be joined, prior to joining or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00Miscellaneous auxiliary devices operating on sheets, blanks, webs, binding material, containers, or packages, and not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes, cartons
    • B65B7/162Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes, cartons by feeding web material to securing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes, cartons
    • B65B7/162Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes, cartons by feeding web material to securing means
    • B65B7/164Securing by heat-sealing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2795/00Printing on articles made from plastics or substances in a plastic state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS
    • B29K2025/00Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material

Abstract

1473506 Lids for, and closing, containers SIDAPLAX 20 Sept 1974 [12 Oct 1973] 47830/73 Heading B8C A lid, suitable for heat-sealing on to the rim or flange of a styrene polymer container, comprises a styrene polymer sheet that has been subjected to an electric discharge at least on that part of the surface of the lid that is to form a part, or the whole, of the seal. The invention includes also a process for producing a lidded container which comprises heat-sealing a sheet of styrene polymer as a lid to a rim or a flange, of a styrene polymer container wherein that part of the lid, rim, or flange that is to form a part, or a whole, of the seal is subjected to an electric discharge before sealing. As shown, a sheet of biaxially-oriented homopolystyrene 1 is passed from a roll 2 between smoothing rollers 3, 4 into a lidding machine 5, a series of filled open polystyrene trays, made by a vacuum forming process, also being fed, by a metal chain conveyer 6, to the machine 5, the flanges of the trays being subjected to corona discharge as they pass beneath an electrode 7 discharging to the chain conveyer. In a modification, Fig. 2, a lidding sheet 10 of biaxially-oriented homopolystyrene, before entering the machine 16, 17, is subjected to a corona discharge emitted from an electrode 14 and passing through the sheet 10 to a roller 15. In a further modification, Fig. 3, the flanges of the filled trays, made of biaxiallyoriented polystyrene, and the lidding sheet 20, made of biaxially oriented ABS sheet, are subjected to corona discharge at 27, 28, and 24, 25 respectively. The machine 5 can be of the turntable kind or, each holding container 17 can move intermittently, or continuously, past an upper assembly 16. The term styrene polymer is defined to comprise a homopolymerized styrene, a copolymerized styrene, a rubber modified polystyrene, or a rubber modified copolymer of styrene; and the term "container" is meant to include a wide range of receptacles suitable for packaging liquids, semisolids, and solid articles including drinks, foodstuffs, and dairy products. The lid sheet, of a thickness from 12À5 to 150 microns and usually referred to as a "film", can be made of unoriented, monoaxially, biaxially-oriented, or expanded, styrene polymer. The discharge applied to the sheet is normally of a high voltage, e.g. from 7,500 to 15,000 volts alternating at a frequency of from 1000 to 100,000 c.p.s. the discharge acting for 0À003 to 1 second. The discharge forms a layer of oxidized material between the lid and the rim, or flange, of the container which prevents a complete weld being formed. The lid of the container can bear printing and contain conventional additives.
GB4783073A 1973-10-12 1973-10-12 production of lidded containers Expired GB1473506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4783073A GB1473506A (en) 1973-10-12 1973-10-12 production of lidded containers

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB4783073A GB1473506A (en) 1973-10-12 1973-10-12 production of lidded containers
BE149282A BE820781A (en) 1973-10-12 1974-10-07 Deksels voor houders
FR7434247A FR2247397B1 (en) 1973-10-12 1974-10-11
JP11701574A JPS5089195A (en) 1973-10-12 1974-10-11

Publications (1)

Publication Number Publication Date
GB1473506A true true GB1473506A (en) 1977-05-11

Family

ID=10446393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4783073A Expired GB1473506A (en) 1973-10-12 1973-10-12 production of lidded containers

Country Status (4)

Country Link
JP (1) JPS5089195A (en)
BE (1) BE820781A (en)
FR (1) FR2247397B1 (en)
GB (1) GB1473506A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6537632B1 (en) * 1992-02-24 2003-03-25 Liliana Klepsch Peelable, heat-sealable foil

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929617A1 (en) * 1979-07-21 1981-02-12 Linnich Papier & Kunststoff A method of heat-sealing or welding of surfaces, in particular to containers or the like., And means here for
CA1287808C (en) * 1986-12-18 1991-08-20 Jan Rune Pedersen Method for the closing of containers
JPH03289406A (en) * 1990-04-06 1991-12-19 Prima Meat Packers Ltd Method of heat-sealing tray with slant edge and round corner
EP0556526B1 (en) * 1992-02-21 1994-06-08 Cofradec S.A. Recyclable containers, their method of manufacture, and closure lid
JP5665260B2 (en) * 2008-03-31 2015-02-04 大日本印刷株式会社 Packaging materials and packaging bag using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6537632B1 (en) * 1992-02-24 2003-03-25 Liliana Klepsch Peelable, heat-sealable foil

Also Published As

Publication number Publication date Type
FR2247397B1 (en) 1978-10-13 grant
BE820781A1 (en) grant
BE820781A (en) 1975-04-07 grant
FR2247397A1 (en) 1975-05-09 application
JPS5089195A (en) 1975-07-17 application

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee