Abstract
Due to the high refrangibility hollow polymer spheres have a strong opacity and covering power. Color hollow copolymer spheres for fiber coloration were prepared by using four commercial disperse dyes with different structures. TEM images show that the hollow size increased from 288.5 nm to 302.5 nm. The conductive titration tests indicate that the hydrophobic disperse dye molecules went into the shell copolymer part in the dyeing process and made the shell more compact and more hydrophobic. The dye content absorbed by the hollow spheres were different with increasing the pH value of the dye-bath from 2 to 12 for anthraquinone and azo disperse dyes. The DLS analysis indicates that the particle size distribution of the spheres dyed at pH 10 was narrower than the original spheres and the spheres dyed at pH 12. Increasing the dye concentration, dyeing temperature and time the dye content increased.
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