MELT BLOWN BIODEGRADABLE NONWOVEN FABRIC, METHOD FOR PRODUCING THE SAME AND FILTRATION MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a biodegradable nonwoven fabric having high collection efficiency with low pressure loss and able to carry out a biodegradable treatment and a filtration material using the same.;SOLUTION: The melt-blown biodegradable nonwoven fabric comprises a biodegradable fiber and the ratio of fiber bundles in which two or more fibers are conjugated in ≥50μm to the whole number of fibers is 3-20%. The melt blown biodegradable nonwoven fabric is produced by melt blowing method in which the molten biodegradable resin is discharged in 0.08-1.00g/min/hole of the spinneret and the distance for collecting the spun filaments is brought to be 8-20cm below the spinneret holes.;COPYRIGHT: (C)2007,JPO&INPIT