Process for producing regenerated cellulose containing cross lin

Details Process for producing regenerated cellulose containing cross lin Process for producing regenerated cellulose containing cross lin

1978-03-17

1979-12-04

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264188, 264191, D01F 200

Patent

active

041772369

ABSTRACT:
Regenerated cellulose products containing formaldehyde cross linked sodium lignate or sodium lignosulfonate in an amount of from about 1% to about 40% by weight based on the weight of the cellulose in the product are prepared by mixing one of the cross linked lignin derivatives or a mixture thereof substantially uniformly in a viscose solution and extruding the solution into a spin bath in which the extruded viscose streams coagulate into filaments containing the cross linked lignin derivative. The extended regenerated product may be used as a fiber in absorbent cullulose products such as diapers, sanitary napkins, tampons and the like.

REFERENCES:
patent: 2265563 (1941-12-01), Kirkpatrick
patent: 2796656 (1957-06-01), Schappel et al.
patent: 3242120 (1966-03-01), Steuber
patent: 3423167 (1969-01-01), Kuzmak et al.
patent: 3463699 (1969-08-01), Broadhead et al.
patent: 3600308 (1971-08-01), Allan
patent: 3844287 (1974-10-01), Smith
patent: 3919385 (1975-11-01), Smith

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