| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber material modifier imparting sufficient flexibility to a fiber material, preventing flexibility effect from easily reducing even when washed, allowing relatively easy availability and having versatility high enough to manufacture and a method for modifying it; and further a method for modifying a fiber material capable of imparting flexibility and also water repellency or water absorption to a fiber material.SOLUTION: With a reaction product of a tertiary amine having at least one of hydrocarbon groups having a carbon number of 6 to 25 and hydrocarbon groups having a carbon number of 1 to 5 or a polyoxyalkylene group with epihalohydrin as a modifier for a fiber material, a fiber material is treated in an aqueous alkaline solution to impart flexibility along with water repellency or water absorption to a fiber product. The fiber product treated with the fiber material modifier of the present invention exhibits excellent washing durability and also is subsequently treated with an anionic compound or an amphoteric compound to further improve its water repellency or water absorption. |
