PRODUCTION OF FILTER MATERIAL FOR REMOVING LEUKOCYTE, FILTER MATERIAL AND DEVICE USING THE SAME AND USED FOR REMOVING LEUKOCYTE

摘要

PROBLEM TO BE SOLVED: To provide a method for easily producing a leukocyte-removing filter high in leukocyte removability per unit volume of leukocyte and good in the flowability of a leukocyte-containing fluid, to provide the filter obtained by the method, and to provide a leukocyte-removing device filled with the filter. ;SOLUTION: This method for producing a leukocyte-removing filter comprises subjecting the mixture of split fibers having a specific fiber length and a specified fiber diameter with non-split fibers to a high pressure liquid treatment to split the split fibers into ultrafine fibers, interlacing the ultrafine fibers with the non-split fibers to form a network structure, and subsequently processing the product into a sheet.;COPYRIGHT: (C)1999,JPO