| 摘要 |
The present invention provides a spandex fiber with improved strength and excellent chlorine resistance, comprising a dialkyl sulfosuccinate corresponding to the following formula (1), where R1 and R2 are independent of each other, are the same or different, and are hydrogen or an alkyl group with 1 to 30 carbon atoms; and M+ represents a cation based on H+, Li+, Na+, K+ or NH4+. |
