Polypropylene staple fibers were grafted with 2-hydroxyethyl methacrylate (HEMA) using ultraviolet radiation in the presence of three different photoinitiators, uranyl nitrate (UN), eerie ammonium nitrate (CAN), and benzoin ethyl ether (BEE), separately. The parameters of grafting were optimized for obtaining maximum graft add-on. BEE appeared to be a better photoinitiator than the other two, giving maximum possible graft add-on. CAN, as a chemical initiator, did not show significant improvement in grafting. The moisture regain of the grafted polypropylene increased in proportion with the graft add-on. Dyeing with reactive dye could give only light color to the grafted fiber. Possible explanations have been given.