METHOD OF PRODUCING CHITOSAN-CONTAINING THREADS Russian patent published in 2011 - IPC D01F8/00 D01F8/02 D01F8/04 A61L17/00 A61L15/32 D01F4/00 

FIELD: chemistry.

SUBSTANCE: method of producing threads involves preparation of a chitosan solution, drawing viscose or caprone threads through said solution and drying. The chitosan is preliminarily swollen in water. Concentrated acetic acid is added while stirring in an amount equal to content of chitosan. Further, 10-40 vol. % ethyl alcohol is added to the obtained solution and then held for 22±2 hours at 22±2°C until complete maturation.

EFFECT: invention intensifies the dissolution process and shortens duration of stirring the mixture from 6-8 hours to 2-3 hours, reduces viscosity, accelerates the solvent evaporation process by 1,5 times, increases stability of formation and prevents sticking of threads and formation of defects.

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