Non-woven fabric of hot-melt adhesive composite fibers

A non-woven fabric of hot-melt-adhesive composite fibers having a weight per unit area of 8 to 30 g/m.sup.2 obtained by

• (1) forming a fiber aggregate consisting of hot-melt-adhesive composite fibers of 4 deniers or less, composed of
• (a) as a first component a polyethylene resin composition (C) consisting of
• (A) 50 to 100% by weight of a straight chain low density polyethylene (L-LDPE) and
• (B) 50 to 0% by weight of another kind of polyethylene,
• said first component having a density of 0.910 to 0.940 g/cm.sup.3 and a ratio of its melt index after spinning:before spinning of 0.75 or higher, and
• (b) as a second component a fiber-formable polymer having a melt point higher than those of either polyethylenes (A) or (B) by 30.degree. C. or more,
• the first component constituting at least a part of the fiber surface of the composite fibers continuously in the longitudinal direction thereof,
• (2) subjecting the fiber aggregate to heat treatment at a temperature equal to or higher than the melt point of the first component of the composite fibers but lower than the melting point of the second component thereof to stabilize the shape by hot melt adhesion.