Patent ID: 6073824
Filing Date: 2000-06-13
Classification: B65H,Y10T

Abstract:
A method of cleanly breaking a continuously advancing cellulose web comprising the steps of:a) advancing said cellulose web to a wind up zone on a transfer fabric which is driven at a desired speed;b) moving said cellulose web into contact with a high pressure liquid intermittently emanating from at least two spray nozzles aligned transversely across said cellulose web, said liquid perforating said advancing cellulose web;c) directing said cellulose web onto a first hollow core and accumulating said cellulose web to form a filled roll;d) activating said spray nozzles in timed sequence to the speed of said transfer fabric such that said perforations occur at a location such that said filled roll has said predetermined diameter;e) moving a second hollow core into contact with said advancing cellulose web at a location upstream of said filled roll while simultaneously withdrawing said filled roll, said contact increasing the tension on said advancing cellulose web and causing said advancing cellulose web to cleanly break at said perforations and form a leading edge; andf) applying a vacuum to said second hollow core which causes said leading edge of said advancing cellulose web to wrap onto said second hollow core.