VERFAHREN ZUM HERSTELLEN EINER UMHUELLENDEN VERSCHLIESSVORRICHTUNG

A wraparound closure article comprising a slit tubular body (41) having upstanding rails (42) extending along the slit is formed by a combination of blow-and compression- moulding. The rails (42) are formed by compressing a longitudinal edge portion of a parison between two parts of a closed split-m...

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Bibliographische Detailangaben
Hauptverfasser:	HEAVEN, MALCOLM DENNIS, PETERSEN, TOMMY, HANSEN, ERLING, BERTH, JORGEN
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A wraparound closure article comprising a slit tubular body (41) having upstanding rails (42) extending along the slit is formed by a combination of blow-and compression- moulding. The rails (42) are formed by compressing a longitudinal edge portion of a parison between two parts of a closed split-mould to form a flange, and the tubular body (41) is formed integrally with the rails by blowing the remainder of the parison into contact with the closed mould. The flange is then cut to provide the slit of the wraparound closure article and to divide the flange into two discrete rails. The slit extends along the pinch-line (58) that forms as a result of compressing the edge portion of the parison in the closed mould.