Process for singulating cellulose fibers from a wet pulp sheet

Details Process for singulating cellulose fibers from a wet pulp sheet Process for singulating cellulose fibers from a wet pulp sheet

2008-07-15

2008-07-15

Fortuna, José A (Department: 1791)

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With decortication or mechanical preparation of textile fibers

C162S028000, C162S055000, C241S021000, C241S028000, C241S024290

Reexamination Certificate

active

10336366

ABSTRACT:
A hammermill for singulating cellulosic fibers from a wet pulp sheet includes a cylindrical housing, a feed slot with a breaker bar positioned therein and a rotor mounted for rotation in the housing. Feed rolls are provided to feed a sheet of pulp into the feed slot upstream of the breaker bar. A plurality of hammers are mounted on the rotor. Air is introduced into the hammermill housing tangentially downstream from the second feed slot. An air outlet is positioned tangentially on the housing downstream from the air inlet to allow air and singulated fibers to escape. A process for producing singulated fibers includes wetting a fiber sheet, milling the fibers in the hammermill, and drying the fibers. The singulated fibers have a low knot content.

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