COMPOSITION FIBER CONTAINING CELLULOSE, ITS PREPARATION METHOD AND TIRE CORD COMPRISING THE SAME

摘要

PURPOSE: Cellulose-based composite fiber, a manufacturing method thereof, and tire cord comprising the cellulose-based composite fiber are provided to offer good applicability of the tire cord in an industrial field. CONSTITUTION: A manufacturing method of cellulose-based composite fiber includes the following steps of: manufacturing spinning dope by dissolving cellulose-based polymers and m-armid with the weight ratio of 70 : 30 ~ 99.9 ~ 0.1 in a solvent including N-methylmorpholine-N-oxide and N-methylpyrolidone or dimethylacetamide; manufacturing multi-filament by coagulating and spinning the spinning dope through a spinneret; and drying and washing the manufactured multi-filament. A method for manufacturing the spinning dope includes a step for mixing m-aramid liquid with cellulose liquid.