Manufacturing method of upper leather artificial leather

摘要

An artificial leather is mafd. by (i) wet-finishing (for fine porous layer) and (ii) dry-finishing (for surface film layer) of a sheet. The surface film layer is of the mixt. of hydrophobic polyurethane elastomer 30-70 wt.% and hydrophilic polyurethane elastomer 70-30 wt.%, and has 5-50 micron thickness.