FILTRE POUR FUMEE DE TABAC

A tobacco smoke filter element comprises a wrapped core (4). The wrapper (2) is longitudinally corrugated to provide, externally thereof, passages (6) extending longitudinally of the filter. The wrapper also has a circumferential groove (8) into which the said passages open. For use the filter eleme...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	E.B. HAYES
Format:	Patent
Sprache:	fre
Schlagworte:	CIGARETTES CIGARS HUMAN NECESSITIES MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES MOUTHPIECES FOR CIGARS OR CIGARETTES SMOKERS' REQUISITES TOBACCO TOBACCO SMOKE FILTERS
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Beschreibung
Zusammenfassung:	A tobacco smoke filter element comprises a wrapped core (4). The wrapper (2) is longitudinally corrugated to provide, externally thereof, passages (6) extending longitudinally of the filter. The wrapper also has a circumferential groove (8) into which the said passages open. For use the filter element can be provided with an air-permeable wrap, which may be a ventilating tipping overwrap incorporating the element in a filter cigarette; such an overwrap suitably has ventilating perforations opening directly into the circumferential groove.