Abstract: The present invention relates to a nonwoven fabric including a conjugated fiber containing 40% by mass or more and 80% by mass or less of a propylene homopolymer (A) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of higher than 120° C., 4% by mass or more and 40% by mass or less of a polypropylene-based resin (B) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of 120° C. or lower, and 10% by mass or more and 55% by mass or less of a polyethylene-based resin (C), wherein the nonwoven fabric has a texture uniformity of 2.1 or more and 3.0 or less and a bulkiness of 450 ?m or more.

Abstract: The present invention relates to a fiber including a thermoplastic resin composition containing a polypropylene-based resin (A) in which a melting endotherm (?H-D) obtained from a melting endothermic curve obtained by holding a sample under a nitrogen atmosphere at -10° C. for 5 minutes and then increasing the temperature at a rate of 10° C./min by using a differential scanning calorimeter (DSC) is 0 J/g or more and 80 J/g or less, and a melt flow rate (MFR) measured under a condition at a temperature of 230° C. and a load of 2.16 kg in conformity with JIS K7210 is 1,000 g/10 min or more; and a polypropylene-based resin (B) (exclusive of the polypropylene-based resin (A)) having a melting point (Tm-D) of higher than 120° C., the fiber having a fiber diameter of 2.0 denier or less.

Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.

Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.

Abstract: The present invention relates to [1] a polypropylene-based resin composition satisfying the following requirements (1) and (2) in a differential molecular weight distribution curve which is obtained from measurement by the gel permeation chromatography using polystyrene as a conversion standard, and in which the abscissa represents a logarithmic value log(M) of a molecular weight M, and the ordinate represents a dw/d log(M) value obtained by differentiating a concentration fraction w by the logarithmic value log(M) of the molecular weight: (1) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in the range of (5.5?log(M)) is 25% or less relative to a value obtained by integrating the dw/d log(M) values over the entire range of log(M); and (2) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in the range of (log(M)?4.

Abstract: The present invention relates to a crimped fiber including one component thereof containing a thermoplastic resin (A) and another component thereof containing a thermoplastic resin (B) and a thermoplastic resin (C), wherein a half-crystallization time at 25° C. of the thermoplastic resin (A) is shorter than a half-crystallization time at 25° C. of the thermoplastic resin (B), and a half-crystallization time at 25° C. of the thermoplastic resin (C) is longer than the half-crystallization time at 25° C. of the thermoplastic resin (B).

Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.