| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject base fabric capable of giving flexible artificial leathers with improved stretch stop feeling, by overcoming such critical drawbacks inherent in crimped short synthetic fibers that flexible, high-density artificial leather base fabrics have been difficult to produce so far on account of being influenced by percentage crimp. SOLUTION: This base fabric (continuous fiber-interlaced nonwoven fabric) is obtained by the following method: the above kind of nonwoven fabric is made to have the requirements A to C described below: (A) the percentage crimp of continuous fibers comprising the nonwoven fabric is <=10%; (B) continuous fibers comprising the nonwoven fabric are capable of raising superfine fibers each <=0.5 denier in fineness; and (C) the fiber density of the nonwoven fabric is 0.25-0.50 g/cm3 . Besides, the nonwoven fabric as a base fabric for artificial leathers is impregnated with a solution of polymeric elastomer followed by solidifying the elastomer in water; in this case, before and after the solidification step, superfine fibers each <=0.5 denier in fineness are raised from the continuous fibers comprising the base fabric, that is, a processing for converting the continuous fibers to superfine fibers is carried out. |
