Abstract: An apparatus for making a sheet of material including vegetable and/or alkaloid substances including a roller rolling mill system including a plurality of rollers rotatable around respective rotation axes defining a rolling mill path provided with pressure lines adapted to substantially press the material so as to provide the latter with a sheet-like shape, and a scraping system configured to engage by contact the working surface of a transfer roller along a contact line so as to detach the material. Specifically, the scraping system including a closed-loop endless scraping band movable at the contact line parallel to the rotation axis of the transfer roller via an actuating assembly.

Abstract: An apparatus for making and/or treating a sheet made of material including vegetable and/or alkaloid substances. The apparatus includes a heating unit, a cooling unit, and a collecting unit arranged in this order along an advancement direction of the sheet. Specifically, the cooling unit can receive the sheet in a cooling space and herein to cool it by forced gas cooling which can provide a first forced cooling gas flow and a second forced cooling gas flow at the cooling space, and operatively direct each forced cooling gas flow on at least a portion of a respective face of the sheet.