Method of opening fibers using a modified disperser plate

Details Method of opening fibers using a modified disperser plate Method of opening fibers using a modified disperser plate

D - Textiles, Paper

04

H

D04H 1/72 (2006.01) D01G 9/06 (2006.01)

Patent

CA 2122601

2122601 9310298 PCTABS00022 A method is disclosed for opening fibers. Preferably, the fibers are opened in the high speed production of uniform, lightweight webs by air-laydown of textile fibers. In a preferred embodiment, a rotating toothed disperser roll is used to open and doff fibers into an air stream of high uniform velocity and low turbulence to form a thin fiber stream from which the fibers are deposited inweb form on a moving screen. A curved disperser plate shrouds the disperser roll and prevents premature doffing. By using a specific disperser plate having an exposed rib length between 0.01 to 0.20 inches and a rib spacing between 0.15 to 2.0 inches, web quality is dramatically improved due to the significantly lower number of defects remaining in the web as unopened fiber chips.

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