FILAMENT NONWOVEN FABRIC FOR MOLDING AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a filament nonwoven fabric good in formability. SOLUTION: This filament nonwoven fabric for molding is constituted by laminating a layer Wa and a layer Wb. The layer Wa is constituted by accumulating filaments Fa. The filament Fa has a melting point Ma on the filament surface, a tensile strength Aa at 50% elongation at the temperature Ma and an elongation Ba at the temperature Ma. While the layer Wb is constituted by accumulating filaments Fb. The filament Fb has a melting point Mb of the filament surface, a tensile strength Ab at 50% elongation at the temperature Ma and an elongation Bb at the temperature Ma. Ma and Mb (unit: deg.C) satisfy the relation: Ma>=Mb+50 deg.C. Aa and Ab (unit: N/d) satisfy the relation: Aa>Ab-7.84×10<-2> N/d. Ba and Bb (unit: %) satisfy the relation: Ba>Bb+25%. The layer Wa and the layer Wb are integrated by interlacing filaments Fa and Fb at the lamination interface.