Synthetic fiber treatment agent, fiber first treatment agent, fiber second treatment agent, synthetic fiber treatment agent aqueous solution, fiber treatment method, and fiber

摘要

PROBLEM TO BE SOLVED: To provide a treatment agent for synthetic fibers having improved low foaming property, emulsion stability and antiseptic property. According to the present invention, a total of 2 mol or more and 100 mol or less of alkylene oxide having 2 or more and 3 or less carbon atoms is added to 1 mol of an organic amine having a hydrocarbon group having 8 or more and 22 or less carbon atoms in the molecule. A treatment agent for synthetic fibers containing a nitrogen-containing nonionic surfactant (A), wherein the (poly) oxyalkylene group (X) in the nitrogen-containing nonionic surfactant (A) is as follows. (Poly) Oxyalkylene group (X): Formed from ethylene oxide and propylene oxide, and the ratio of the number of moles of ethylene oxide added to the total number of moles of ethylene oxide and propylene oxide added is 50% or more. [Selection diagram] None