FLUXLESS POLYURETHANE ARTIFICIAL LEATHER HAVING THE LIVING BODY TEXTURE AND MANUFACTURING METHOD THEREOF, CAPABLE OF OFFERING EXCELLENT WATER ABSORPTION FORCE

摘要

PURPOSE: Fluxless polyurethane artificial leather having the living body texture and a manufacturing method thereof are provided to minimize generation of volatile materials including environment hormones because an organic solvent is not used.;CONSTITUTION: Fluxless polyurethane artificial leather having the living body texture contains 85 ~ 95 weight% of fluxless polyurethane resin and 5 ~ 15 weight% of a soybean protein separator having an average diameter of 1 ~ 75 μm. The artificial leather further includes one or more selected from a foam layer, a coating layer, and a substrate layer. The fluxless polyurethane resin includes Resin Premix and dieisocyanate prepolymer with an equivalence ratio of 1 : 1.5 ~ 2.5. The Resin Premix contains 99 ~ 99.7 weight% of polyol having average molecular weight of 100 ~ 20,000, 0.2 ~ 0.7 weight% of a delayed catalyst, 0.5 ~ 0.2 weight% of a surfactant, and 0.01 ~ 0.1 weight% of water. The dieisocyanate prepolymer contains 50 ~ 60 weight% of a diisocyanate-based compound and 40 ~ 50 weight% of the polyol.;COPYRIGHT KIPO 2010