VERFAHREN UND VORRICHTUNG ZUM ERWÄRMEN UND AUSHÄRTEN VON FILTERSTÄBEN

VERFAHREN UND VORRICHTUNG ZUM ERWÄRMEN UND AUSHÄRTEN VON FILTERSTÄBEN

Heating and hardening cigarette filters comprising a filter material and a hot-melt adhesive binder comprises passing a single layer of individual filters through a hot air oven to heat the filters to a temperature just above the melting point of the binder and then through a cooler to harden the bi...

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Bibliographische Detailangaben
Hauptverfasser: JANN DE BOER, IRENE MAURER, SOENKE HORN, STEPHAN WOLFF, MAIK BOETTCHER, THORSTEN SCHERBARTH, ALEXANDER BUHL
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:Heating and hardening cigarette filters comprising a filter material and a hot-melt adhesive binder comprises passing a single layer of individual filters through a hot air oven to heat the filters to a temperature just above the melting point of the binder and then through a cooler to harden the binder. An independent claim is also included for apparatus for heating and hardening cigarette filters, comprising a conveyor for transporting the filters through an oven and cooler as above.