Apparatus for the preparation of bonding fibers from polymer dis

Details Apparatus for the preparation of bonding fibers from polymer dis Apparatus for the preparation of bonding fibers from polymer dis

1982-07-20

1985-08-13

Hall, James R.

Plastic article or earthenware shaping or treating: apparatus

Means making particulate material directly from liquid or...

By means applying fluid jet or blast to unconfined liquid...

B22F 900

Patent

active

045347204

ABSTRACT:
An apparatus for the preparation of bonding fibers, especially for the production of nonwovens by a wet-lay process, wherein a polymer dispersion, containing an anionic or nonionic dispersant, and an aqueous solution, containing a dissolved cationic precipitant, are combined to cause fiber formation from precipitated polymer particles, which apparatus includes a feed funnel spaced above the bottom of a homogenization vessel with both a nozzle for introducing the polymer dispersion and a metering device for the precipitant, which are so arranged and aimed into the funnel that in co-operation with a stirrer a vortex is produced in a column of liquid in the feed funnel, and fibers are formed and broken up while passing through a turbulence chamber, located at the bottom of the funnel, and a gap into a homogenization chamber.

REFERENCES:
patent: 4211737 (1980-07-01), Dyusco et al.

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