| 摘要 |
PROBLEM TO BE SOLVED: To obtain a level dyeing agent for a polyamide, excellent in level dyeing and color reproducibility by using a compound having a specific structure obtained by adding an alkylene oxide. SOLUTION: This level dyeing agent is prepared by including a compound represented by the formula [R is a 3-22C aliphatic hydrocarbon; (a), b and c are each the molar number of added ethylene oxide and (a)+b+c are 3-50; d, e and f are each the molar number of added propylene oxide and d+e+f is 0-20] and obtained by adding ethylene oxide and optionally propylene oxide to an N-alkyl- or alkenyl-trimethylenediamine. The dyeing treatment is carried out after adding 0.01-5% owf of the level dyeing agent to a dyebath of a polyamide fiber.
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