Dope dyed carbon-black polyester
 

Dope dyed carbon-black polyester is dyed in solid and vivid black color by being mixed with carbon black powder when it is polymer. When used alone, dope dyed polyester provides better blackness and color fastness than dyeing is performed after fibers are made.
When mixing with other products, dope dyed polyester enables a variety of color harmonies through adjustment of the mixing ratio.