SYNTHETIC FIBER HAVING EXCELLENT HEAT-ACCUMULATING AND HEAT-INSULATION PROPERTY

摘要

PURPOSE:To provide the subject fiber containing a specific amount of a specific silicate and useful for a cloth exhibiting sufficient function as winder clothes even at a thin thickness. CONSTITUTION:The objective synthetic fiber is a core-sheath conjugate fiber having a core part composed of preferably polyethylene terephthalate, etc., and containing 0.1-15wt.% (preferably 0.5-10wt.%) of a silicate of a group IV metal of the periodic table (preferably zirconium silicate) having an average particle diameter of <=5mum (preferably 0.4-1mum).