a synthetic leather and a manufacturing process thereof involves having a substrate to be combined with a thermoplastic basic material in one - time or multiple times of compound procedure for both to become an integrated party of the synthetic leather that prevents easy stripping off , excellent compound results , and excellent air permeability , particularly ideal in lateral and longitudinal ductility and malleability . furthermore , the synthetic leather of the present invention gives advantages of having smooth surface , free of pilling , multiple choices for the applicable substrate , and perfect for massive production by batch .