Evaluation of the Theory of Water Retention for Hollow Fibers

Nowadays polymeric hollow fibers and sub denier fibers used in apparels and other textiles. Practical and theoretical determination of water retentions for natural and polymericfibers assemblies after centrifuging has been considered by several investigators due to its importance in washing anddrying equipments, comfort of wearers and medicals [1-4]. An equation was derived based on the cylindrical fiber shape with considering the equilibrium of centrifugal force and the force due to the surface tension of liquid water. We modify this equation for hollow (tube like) fibers and its compliance with experimental results will be shown.