PROCEDURE AND APPARATUS FOR REMOVING THE TISSUE WEB FROM THE PICK-UP FABRIC AND CARRYING IT OVER THE FLOW-THROUGH DRYER

摘要

The present invention provides a process for removing tissue web from a pick-up fabric, moving it to a flow-through dryer by means of a flow-through drying wire, on top of which the web is carried over a cylinder of the flow-through dryer and on to a subsequent processing phase or transfer fabric, said process comprising in combination passing said flow-through drying wire over on the web which runs on the pick-up fabric, and applying a high vacuum in a first vacuum zone on the sandwich structure produced from the direction of the flow-through drying wire in the running direction of the web over a first narrow detaching zone deviating, moving and securely maintaining the running direction of the pick-up fabric in relation to the flow-through wire and the web on the flow-through drying wire by means of a second vacuum zone applied on the web from the direction of the flowthrough drying wire essentially immediately after the first detaching zone.