| 摘要 |
An artificial leather comprising a protective layer, a surface layer, and a fibrous substrate, successively laminated, wherein a polyurethane resin forming the surface layer is obtained by reacting a urethane polyisocyanate prepolymer (A) and a polyol component (C) containing a urethane polyol prepolymer (B), the (A) has an equivalent ratio (isocyanate groups/hydroxyl groups) of from 2.0 to 6.0, and has a number average molecular weight of from 3,000 to 30,000, the (B) has an equivalent ratio (isocyanate groups/hydroxyl groups) of from 0.2 to 0.8, and has a number average molecular weight of from 3,000 to 30,000, an equivalent ratio between the urethane polyisocyanate prepolymer (A) and the polyol component (C) (isocyanate groups/active hydrogen groups) is from 1.01 to 2.0, and a weight ratio between the urethane polyisocyanate prepolymer (A) and the polyol component (C) ((A)/(C)) is from 0.7 to 2.0.
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