| abstract |
(57) [Summary] [Object] An object of the present invention is to provide a polyester cloth which has little coloration, has extremely high whiteness, has a large dull effect, and has an excellent color tone. [Structure] Germanium compound and silicon oxide fine particles having an average particle size of 1.0 μ or less and a particle size standard deviation of 1.7 or less. A polyester cloth containing 1 to 5% by weight, which is dyed with a fluorescent dye after being alkali-reduced to 5 to 30% by weight of the cloth, and has a whiteness Wh of 130 or more shown in the following formula (1). Characteristic high whiteness polyester cloth. Wh = 100- (R 680 -R 440 ) ... (1) R 680 and R 440 are wavelength 680 nm, the reflectance at 440 nm (%) |