HEAT RESRSTANT CAST ALLOY

摘要

A polyester dope-dyed fiber that repels ultraviolet rays is produced by discharging an agent prepared from a mixed composition in which the ratio of the coloring agent to 0.5-1% TiO2-containing polyester is 1:5-10. The coloring agent is prepared from polyester, carbonblack, and anti-thermal anthraquinone dye. The polyester is prepared by condensation polymerization of terephthalic acid and ethyleneglycol using ordinary methods. The particle diameter of carbonblack in manufactured fibees is less than 1 u and the wavelength of the fiber is 650nm-1200nm.