PURPOSE: To obtain the subject fiber excellent inflame retardance and revelation property of potential crimp, by using two polymers respectively consisting of a specified amount of acrylonitrile, halogen containing monomer and sulfonic acid-containing monomer as two components and eccentrically joining the two components.

CONSTITUTION: An aimed conjugate fiber suitable for a blanket, sheet, carpet, curtain, etc., and obtained by using two polymers respectively consisting of ≥40wt.% acrylonitrile, 20W60wt.% halogen-containing monomer such as vinyl chloride or vinylidene chloride and sulfonic acid-containing monomer such as sodium allylsulfonate or sodium methallylsulfonate as two components (A) and (B), in which the content of vinylidene chloride in the polymer of the component (A) is ≥3wt.% higher than that of the component (B) and eccentrically joining both the components (A) and (B).