Device and method for the longitudinal stretching of a film web

The invention relates to a device (1) for longitudinally stretching film webs (2), comprising several rollers (5, 6, 9, 10, 11, 12, 13, 18, 19), some of which are rollers for controlling temperature and some of which (9 to 13) form stretching gaps (22). The film web (2) can be stretched in said stre...

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Bibliographische Detailangaben
Hauptverfasser:	TROMMELEN BARTHOLOMEUS, NIEBRUEGGE THOMAS, LINKIES JUERGEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS 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:	The invention relates to a device (1) for longitudinally stretching film webs (2), comprising several rollers (5, 6, 9, 10, 11, 12, 13, 18, 19), some of which are rollers for controlling temperature and some of which (9 to 13) form stretching gaps (22). The film web (2) can be stretched in said stretching gaps. At least one of the rollers (5, 6, 9, 10, 11, 12, 13, 18, 19) has a drive that is torque-controlled.