| 摘要 |
PURPOSE:To obtain a self-crimping conjugate fiber having fine crimping property and excellent stretchability and recovery and suitable for stockings, etc., by the composite melt spinning of a polymer composed of a crystalline polyamide and having low shrinkability and a polymer composed of a specific polyether ester amide polymer, etc., and having high shrinkability. CONSTITUTION:The objective fiber can be produced by the composite melt spinning of (A) a polymer composed of a crystalline polyamide and having low shrinkage [preferably a polymer containing >=95(wt)% nylon 6 or >=90% nylon 66] and (B) a polymer having high shrinkage and composed of a polyether ester amide polymer and/or polyether amide polymer derived from (i) epsilon- caprolactam, epsilon-aminocaproic acid and/or their oligomer, (ii) a poly(alkylene oxide) glycol and/or poly(alkylene oxide) diamine having a number-average molecular weight of 300-6,000 and (iii) a 4-20C dicarboxylic acid.
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