METHOD FOR CARBONIZATION OF WOOL FIBERS AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2007 - IPC D06B3/02 

FIELD: textile industry, in particular, carbonization of wool fibers, may be used in preliminary wool fiber or yarn dyeing operations.

SUBSTANCE: method involves dividing bath into two chambers by means of partition having properties of fine filter for cleaning of water; introducing electrodes into both bath chambers; filling bath with water; introducing sulfites into bath chamber with positive electrode identified as anode chamber in an amount of 5-20 g/l, powder of amphoterous aluminosilicates: montmorillonite, kaolinite (anauxite), halloysite, beidellite, nontronite, talc, pyrophyllite in an amount of 1-30 g/l, one of said aluminosilicates, or random mixture thereof; supplying electric potential difference of 5-35 V to electrodes; charging wool fibers into bath; impregnating and holding wool fibers at temperature of 20-25 C during 10-25 min in 3-7.5%-aqueous solution of sulfuric acid; squeezing fibers to 70-100%; drying at temperature of 70-90 C; providing thermal processing at temperature of 100-115 C during 3-7 min; rinsing in cold water; neutralizing acid residues in fibers in 2%-solutions of sodium carbonate, ammonia or sodium acetate; additionally rinsing and discharging from bath.

EFFECT: reduced sizes and production costs of apparatus and increased carbonization effectiveness.

3 cl, 1 dwg