Patent ID: 6419747
Filing Date: 2002-07-16
Classification: B05C,B29C

Abstract:
An extrusion die for extruding a chemical functional additive for making a disposable paper product,the extrusion die comprising a supply port, a distribution channel in fluid communication with the supply port, and at least one lip terminating with a knife-edge, the distribution channel terminating with a plurality of circular or semi-circular discharge mouths consecutively spaced along and separated from one another by the knife-edge of the lip, each of the discharge mouths comprising an entry orifice, an exit orifice, and a passage having a discharge distance defined therebetween, the entry orifice having an entry open area Ae, and the exit orifice having an exit open area Ax, wherein cross-section of the passage for each of the discharge mouths is continuously flared in at least two mutually perpendicular cross-sections, from the entry orifice to the exit orifice, such that the exit open area Ax is greater than the entry open area Ae.