NONWOVEN FABRIC HAVING AN EXCELLENT FLAME RETARDANT AND WEEDING PROPERTY AND PREPARING METHOD THEREOF

摘要

The present invention relates to spun-bonded long-fiber polyester nonwoven fabric having excellent flame retardancy and weed-proofing performance and a manufacturing method therefor. The spun-bonded long-fiber polyester nonwoven fabric having excellent flame retardancy and spinning property in the present invention, uses a core-sheath type filament spun by using first and second components for core and sheath components respectively as a filament constituting the nonwoven fabric or uses a filament spun from mixed first and second components. The spun-bonded long-fiber polyester nonwoven fabric is manufactured by a method comprising the steps of: supplying cold air to the filament to solidify the filament; making the solidified filament into an elongated filament with a constant fiber diameter through an elongation process; piling the elongated filament on a porous screen belt being continuously driven to form a nonwoven fabric web; thermally bonding the nonwoven fabric web with heat and pressure through a heat calender to impart shape stability to the nonwoven fabric web; and punching the prebonded nonwoven fabric web by a lot of needles to impart mechanical strength, thickness and light-shielding property to the prebonded nonwoven fabric web. The spun-bonded nonwoven fabric has a basis weight of 15-500 g/m^2 and a fiber diameter of 1-5 denier. The present invention combines and uses a polyester-based material free from a flame retardant component and a polyester-based material with a high concentration of flame retardant component by various kinds of methods, thereby ensuring excellent flame retardancy and weed-proofing performance to resolve previous problems.