Hydrophilic polyester fiber and hydrophilic nonwoven fabric using the same and their production
Patent #: 6,720,070
Inventor(s): Tadaaki Hamaguchi, Hiroshi Maruyama, Shigeki Tanaka and Hisao Nishinaka
Company: Toyo Boseki Kabushiki Kaisha
1. A hydrophilic polyester fiber comprising: a polyester fiber; and a coating on the fiber comprising (a) a polyester-polyether block copolymer comprising a polyester component and a polyether component; (b) an ion complex comprising (i) an anionic surfactant and (ii) a cationic surfactant; and (c) at least one of a nonionic surfactant and an amphoteric surfactant.
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