| 摘要 |
A thermal bonding conjugate fiber for a nonwoven binder in accordance with the present invention comprises a polyester-based resin as a first component and a polyolefin-based resin, having a melting point lower than that of the polyester-based resin by 20°C or more, as a second component and has a release rate of 1.5 or higher. The release rate (%) is calculated as an inequality, (Cross sectional outer circumference + Hollow sectional outer circumference) 2 / (4 π X Cross sectional area). The thermal bonding conjugate fiber for a nonwoven binder of another embodiment in accordance with the present invention comprises a polypropylene resin as a first component and the polyolefin-based resin as a second component and has a release rate of 1.5 or higher. It is desirable that the thermal bonding conjugate fiber for a nonwoven binder of the present invention consists of 30-70 wt% of the first component and 70-30 wt% of the second component. The thermal bonding conjugate fiber for a nonwoven binder of the present invention takes the form of concentric core-sheath, eccentric core-sheath, or side-by-side. The shape of the cross section and the hollow of the fiber of the present invention can be circular cross section, circular hollow, modified cross section, or modified hollow. In addition, the present invention includes nonwoven fabrics for sanitary pads made of the thermal bonding conjugate fiber. |
