How to dye suede-woven non-woven artificial leather

摘要

The present invention relates to a dyeing method of suede-like nonwoven artificial leather, and is surface-treated and dyed by adding a color pigment of 5 to 10% by weight to fill a polyurethane elastomer in a nonwoven fabric of nylon-6 and low density polyethylene composite fibers. In the manufacture of suede artificial leather, prior to dyeing, a quaternary ammonium-based colorant is applied, followed by continuous padding dyeing with a metal complex dye for neutral bath, followed by drying and dyeing the bubble with a metal complex dye or a tendon dye. And finally characterized in that the anionic softening treatment, the artificial leather by the dyeing method according to the present invention is improved in color fastness, color depth, color development and feel, so as not substitute for the medical field as well as leather products It can be widely applied to the field of general merchandise.