Process for spinning starch fibers

Details Process for spinning starch fibers Process for spinning starch fibers

1987-12-23

1989-08-01

Lorin, Hubert

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

106210, 162175, 264179, 264186, 264211, 26421111, 26421114, D01F 900

Patent

active

048531685

ABSTRACT:
Raw starch is slurried in an aqueous solution containing up to and above saturation levels of an ammonium sulfate, ammonium monobasic or dibasic phosphate, sodium sulfate or mixtures thereof. The slurry is then cooked at temperatures above about 150.degree. C. The resulting starch cook is then extruded using conventional methods into a coagulating salt bath thereby producing a starch fiber. When the starch is cooked in the presence of a salt prior to spinning in the coagulation bath, dilution of the salt in the coagulation bath is minimized, thus reducing the evaporation load.

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