Complexing agents for paper web projecting roller.

摘要

A turbulence roll for a web former. The roll generates high frequency small-scale vibration in the stock on the forming fabric whereby fluidization of the partially formed fiber mat and dispersion of fiber flocs in the stock is brought about. The turbulence roll is formed of a shaft on which a plurality of discs (32) are disposed a distance apart from each other and a plurality of lengthwise extending rods (34) attached to the rims of the discs and spaced apart from each other.