abstract |
The present invention provides a hollow fiber, which includes: n at least one thermoplastic polymer with an equilibrium water content of 2% or less; n wherein the number of hollow portions (α 1 ) and a hollow ratio (α 2 ) in said fiber satisfy the following equations: n α 1 ≧7 n n 2≦α n 2 n ≦65 n n 0.14 ≦ (α 1 ×α 2 ) /100≦250. n Other embodiments of the present invention include articles containing the hollow fiber, methods of making and of using, and a sea-island conjugate fiber |