Napped artificial leather and manufacturing method therefor

Abstract

A napped artificial leather including: a nonwoven fabric containing microfine fibers and a high-molecular elastic body, the napped artificial leather having a napped surface, in which a content of the high-molecular elastic body is 15 to 35 mass %, an area ratio of the high-molecular elastic body present on the napped surface is 17% or less, and a napped fiber length is 250 μm or less.

1 . A napped artificial leather comprising: a nonwoven fabric containing microfine fibers and a high-molecular elastic body, the napped artificial leather having a napped surface, wherein
 a content of the high-molecular elastic body is 15 to 35 mass %,   an area ratio of the high-molecular elastic body present on the napped surface is 17% or less, and   a napped fiber length is 250 μm or less.   
     
     
         2 . The napped artificial leather according to  claim 1 , wherein the microfine fibers are polyester-based fibers. 
     
     
         3 . The napped artificial leather according to  claim 1 , wherein the microfine fibers have an average fineness of 0.01 to 1.0 dtex. 
     
     
         4 . The napped artificial leather according to  claim 1 , wherein the nonwoven fabric is a spun-bond nonwoven fabric. 
     
     
         5 . A method for manufacturing the napped artificial leather according to  claim 1 , the method comprising a step of removing a sea component from an entangled web containing the high-molecular elastic body, to obtain a nonwoven fabric containing the high-molecular elastic body. 
     
     
         6 . The method for manufacturing the napped artificial leather according to  claim 5 , the method comprising a step of melt-spinning sea/island type composite fibers to obtain a web. 
     
     
         7 . The method for manufacturing the napped artificial leather according to  claim 6 , wherein the step of obtaining a nonwoven fabric containing the high-molecular elastic body includes removing the sea component through dissolution in an organic solvent. 
     
     
         8 . The method for manufacturing the napped artificial leather according to  claim 1 , the method comprising a step of forming the entangled web containing the high-molecular elastic body through use of a solvent-based polyurethane.