It could be safely concluded that, surface modification of textile blend fabrics, cotton and polyester wether by silica sol or silica nanoparticles via the promising, simple and valuable sol-gel technique using metal alkoxides precursors such as (APTES, GPTMS and TEOS) produced modified fabric blends (PET W and PET C) that could be printed successfully with one class of dyes (anionic, nonionic) using the proper selected printing technique. Also multi-functional dyes with properties such as antibacterial dyes could be used providing functionality to those fabrics. The fastness properties of the modified fabrics (light, washing, rubbing, perspiration) range from v. good to excellent. The above achievements help in solving blend fabrics coloration problems.