| 摘要 |
PROBLEM TO BE SOLVED: To obtain a weather-resistant filament nonwoven fabric having excellent weather resistance without deteriorating the flexibility. SOLUTION: This nonwoven fabric is a nonwoven web composed of a core- sheath conjugate filament containing polypropylene as the core component and a copolymerized polypropylene as the sheath component and heat-bonded under pressure to form a prescribed form. The sheath component composed of copolymerized polypropylene is incorporated with 0.005-3.0wt.% of a benzotriazole-type or a benzophenone-type ultraviolet absorber and 0-3.0wt.% of a hindered amine-type, a hindered phenol-type or a phosphorus-type antioxidant. For getting excellent weather resistance, the core component consisting of polypropylene may be incorporated with 0.005-3.0wt.% of a benzotriazole-type or a benzophenone-type ultraviolet absorber and 0-3.0wt.% of a hindered amine- type, a hindered phenol-type or a phosphorus-type antioxidant. |
