Staple fiber non-woven fabric and process for producing the same

A process for producing a staple fiber non-woven fabric, comprising the steps of:

• spinning splittable bicomponent conjugate fibers composed of a polyamide and a polyester which are incompatible with each other;
• blending the splittable bicomponent conjugate staple fibers with water-absorptive staple fibers;
• carding the blended staple fibers to form a non-woven web which includes a random web pattern;
• and
• subjecting the non-woven web to a high pressure liquid stream treatment, whereby the conjugate staple fibers are split at a fiber split degree of not lower than 85% into first split staple fibers composed of polyamide and having a fineness of not greater than 0.5 denier per fiber and second split staple fibers composed of polyester and having a fineness of not greater than 0.5 denier per fiber, and the first and second split staple fibers and the water-absorptive staple fibers are three-dimensionally entangled with each other.