Patent ID: 6468397
Filing Date: 2002-10-22
Classification: D21F,Y10S

Abstract:
A system for removing unwanted fibers and contact cleaning a forming fabric with a liquid cleaning fluid during a wet papermaking process comprising:a forming fabric, the fabric having a portion that contains entrapped fibers, a turning roll having a top side and an underside, said forming fabric being wrapped around said turning roll such that an upper portion of said forming fabric contains entrapped unwanted fibers, said upper portion being configured to travel around the turning roll to emerge on the underside of the roll; and a scarfing shower configured to emit an upward-directed stream of liquid cleaning fluid at a pressure of at least about 50 psi, said scarfing shower being positioned to directly strike said forming fabric from below, on the underside of said turning roll, while said forming fabric is moving around said turning roll, thereby dislodging unwanted fibers from said forming fabric, said stream of cleaning fluid flowing in an upward direction and opposite to the direction of said moving forming fabric.