Crimped conjugate fibers containing a nucleating agent

A helically crimped multicomponent conjugate fiber comprising at least a first composition and a second composition:

• said first composition comprising a first thermoplastic polymer and said second composition comprising a second thermoplastic polymer and wherein said first and second thermoplastic polymers have different solidification periods and are selected from polyolefins, polyamides, polyesters, vinyl acetate-based polymers, and blends and copolymers thereof;
• and
• wherein both said first and second compositions contain a nucleating agent selected from sorbitol nucleating agents;
• metal salts of benzoic acid, dicarboxylic acid and arylalkanoic acid;
• sodium 2.2′-methylene bis(4,6-di-t-butylphenyl) phosphate;
• and mineral particles and further wherein at least one of said first and second compositions contains an amount of nucleating agent effective to modify the level of crimp within said fiber, said amount being between about 0.005% and 2.0%, based on the total weight of said composition.