Nanometer particles can reflects ans absorbs the ultraviolet ray, and then transforms and releases the purpose to achieve ultraviolet rays to low energy. The absorption waves of the nanometer TiO2 and nanometer ZnO are the ultraviolet ray, the absorption wave of the nanometer SiO2 is the infrared light, because partly of the enter light will be absorbs, resulting in the reflect light with some colour changing. This present studies is mainly to dye the polyester with different disperse dyestuff first, and then treatment with different thickness of nanometer Ti02, nanometer ZnO and nanometer SiO2 and different manufacture processes, and tested by the lightness, after being tested in order to probe into the polyester dying fabric by different nanometer particle's processing and lightfastness, the changes of the colourmetric and lightfastness before and after it, and change the thickness of nanometer particle to discussion that influence on the dyeing fabric dyeing fastness, colourmetric and the time of ultraviolet light shine to physical properties and temperature of Tg and Tm, etc. The experimental result can find that the effect of lightfastness and physical properties of dyeing polyester fabric to dyeing and nanometer particles manufacture processes in one way will be better than dyeing and nanometer particles manufacture processes in two way. The nanometer Ti02 exerts a largest influence on colourmetric of the dyeing fabric, it is easily to cause the colour difference of the dyeing fabric, the most obvious improvement of warp strength, softness and lightfastness is nanometer ZnO, there is no Tm effect to polyester fabric with disperse dyestuff and nanometer particles.
