MELT-BLOWN FIBER AGGREGATE

摘要

PROBLEM TO BE SOLVED: To provide a fiber aggregate that is obtained by a melt-blowing method and has wide filtration performance especially when used as a filter. SOLUTION: The fiber aggregate is obtained by a melt-blowing method, has an average fiber diameter of single fiber constituting the fiber aggregate of 35-80μm, and forms at least two fiber bundles in which two to ten fibers on the average in a unit are bonded in the fiber length direction in 90% or more of fibers based on the number of fibers. Preferably the fiber aggregate has a variation of number of fiber bundles of 2-6. COPYRIGHT: (C)2011,JPO&INPIT