DEVICE AND METHOD FOR THE LONGITUDINAL STRETCHING OF A FILM WEB

摘要

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.