To provide a spun-bonded nonwoven fabric that is excellent in water proofness and tensile strength and is also excellent in spinning-forming properties, and to provide a sanitary material using a spun-bonded nonwoven fabric.SOLUTION: The spun-bonded nonwoven fabric comprises a propylene homopolymer or a propylene random copolymer satisfying each of the following requirements (I),(II) and (III): (I) the crystallization temperature is 100°C or more and 128°C or less (II) the molecular weight distribution Mw/Mn is 3 or more and 10 or less and (III) MFR (ASTM D-1238, 230°C, load 2160 g) is in a range of 40 g/10 min to 100 g/10 min.SELECTED DRAWING: Figure 1【課題】耐水性・引張強度に優れ、紡糸成形性にも優れるスパンボンド不織布、およびスパンボンド不織布を用いた衛生材料を提供すること。【解決手段】 下記要件(I)(II)(III)を各々満たすプロピレン単独重合体、またはプロピレンランダム共重合体を含むスパンボンド不織布。(I)結晶化温度が100℃以上128℃以下である(II)分子量分布Mw/Mnが3以上10以下である(III)MFR(ASTM D-1238、230℃、荷重2160g)が40g/10分~100g/10分の範囲にある【選択図】図1
