The impact of various colors in a multi-colored warp on size pick-up was tested. Likewise, the change of physical-mechanical properties of yarn by sizing multi-colored warps was examined. Tests were performed on various multicolored warps for each color. Based on the obtained results, we concluded whether there was a difference in the size pick-up among various colors of the warp, as well as a difference in physical-mechanical yarn properties under the same sizing and dyeing conditions.