In today’s competitive arena, organizations must use all possible means to maximize growth and profitability by focusing on continuous developing, raw material is the cornerstone to produce optimal and economical yarns so this study will help manufacturers to choose suitable varieties of cotton for blending to produce yarn with optimum characteristics enhanced to satisfy customer. In this study, different varieties of cotton fibers blended have been studied.The result showed that improve mechanical characteristics of yarns .Also it’s was found that Pima cotton is economical cotton to produce yarns which has less impurities. In general Egyptian cotton has finest fiber and highest strength. It could be seen that resultant waste to produce one Kg yarn from Pima Cotton & Acala is 24 percent (C.F 1.32) while waste to produce one Kg yarn from Egyptian cotton (G87&G86) is 28 percent (C.F 1.38) .The result indicated that raw material cost reduced by 7% to 10%.