VERFAHREN UND VORRICHTUNG ZUM VERFESTIGEN VON BAHNFOERMIGEN MATERIALIEN, INSBESONDERE EINES FASERVLIESES.

摘要

A process is for the consolidation and/or thermal binding and/or embossing of web-like materials and/or for the deforming of web- or tape-like materials, a fibre web on discrete points in particular. The process uses two revolving calender rolls between which the web is guided. The rolls are equipped with raised discrete points forming a surface pattern. Each roll is driven at a synchronous revolution speed and the covering degree between opposite pairs of raised points can be adjusted to different values between a minmum and a maximum. The covering degree determines the embossing surfaces. Specifically, an installation for carrying out the process incorporates a drive unit for driving the calender rolls at identical revolution speeds. The drive unit comprises an adjusting gear to permit an angle-related shifting of one of the two calender rolls. The bearing of at least one of the rolls is equipped with a device for an axial shifting of the roll in relation to the other roll.