PURPOSE: The titled hollow fiber that is composed of regenerated cellulosic fibers made through the viscose rayon process and has the skin layer of a specific thickness as the outer wall, the core layer as the inner wall and the running-through hollow part, thus showing good mechanical properties, high dimensional stability and excellent membrane permeation performance.
CONSTITUTION: The objective hollow fiber is composed of a thin skin layer less than 1μ thick as the outer wall, a core layer as the inner wall and a running-through hollow part, and is made from regenerated cellulose through the viscose rayon process. When the outer diameter of the hollow fiber is represented as aμ, the wall thickness as bμ, a and b preferably satisfy following equations: 50≤a≤500, and 1.33×10-2a+2.33≤b≤6.67×102a+6.67≤30.
NAGATOMO SADAMI
MISHIMA SAICHIRO
TAKAHASHI TADAHIKO
| JPS626005A | 1987-01-13 | |||
| JPS49133614A | 1974-12-23 | |||
| JPS5255719A | 1977-05-07 | |||
| JPS5433397A | 1979-03-12 |
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