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

Abstract

A staple fiber non-woven fabric is provided which comprises, as constituent fibers, first and second split staple fibers composed of first and second fiber formable polymers, respectively, and water-absorptive staple fibers. The first and second split staple fibers have a fineness of not greater than 0.5 denier per fiber. The first and second fiber formable polymers are different polymers selected from the group consisting of a polyamide, a polyester and a polyethylene which are incompatible with each other. The fiber split degree of the first and second split staple fibers is not lower than 85%. The constituent fibers are three-dimensionally entangled with each other.

1 - 4 . (canceled)  
   
   
       5 . 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.