METHOD FOR PRODUCING NONWOVEN FABRIC ARTIFICIAL LEATHER HAVING IMPROVED DYEING PROPERTIES

摘要

PURPOSE: A method for producing nonwoven fabric artificial leather having improved dyeing properties is provided, thereby improving the color fastness properties of the nonwoven fabric artificial leather, and dyeing the nonwoven fabric artificial leather dark color. CONSTITUTION: A method for producing nonwoven fabric artificial leather having improved dyeing properties comprises the steps of: melt-mixing an ultra-fine fibril component with inorganic dye to produce ultra-fine dope dyed yarn; producing single fiber using the ultra-fine dope dyed yarn to produce nonwoven fabric; dipping the nonwoven fabric in a color pigment mixed polyurethane elastic solution; removing dispersion components of ultra-fine fiber from the dipped nonwoven fabric; and dyeing the nonwoven fabric with antimetal dye, wherein the inorganic dye is added in the amount of 0.1 to 5 wt.%; and the polyurethane mixed color pigment is added in the amount of 0.1 to 10 wt.%.