DYED ARTIFICIAL LEATHER AND METHOD FOR MANUFACTURING SAME

摘要

The present invention provides dyed artificial leather and a method for manufacturing the dyed artificial leather such that the dyed artificial leather has superior surface quality with excellent fastness to washing, fastness to rubbing, and fastness to light without color unevenness between ultrafine fibers and a polymer elastic body. The dyed artificial leather is characterized in that: dyeing is performed on artificial leather constituted of a fibrous backing material that includes ultrafine fibers wherein the filament fineness is 2 dtex or less and a polymer elastic body; and the difference in brightness ΔL*for the ultrafine fibers and polymer elastic body as expressed in the following equation is -16 ≤ ΔL* ≤ 5. ΔL* = (average brightness L* of ultrafine fibers) - (average brightness L* of polymer elastic body) The method for manufacturing the dyed artificial leather is characterized by using a dye to carry out a first dyeing of the artificial leather constituted of a fibrous backing material that includes ultrafine fibers wherein the filament fineness is 2 dtex or less and a polymer elastic body and thereafter carrying out a second dyeing at a dye concentration of 0.1 to 30% of the dye concentration (owf) of the first dyeing.