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Preparation of Aqueous Nanodispersions of Disperse Dye by High‐Gravity Technology and Spray Drying
Author(s) -
Yin Xiong,
Xu Wei-Feng,
Pu Yuan,
Zhai Jing,
Wang Dan,
Wang Jie-Xin
Publication year - 2020
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201900570
Subject(s) - disperse dye , micronization , dyeing , materials science , aqueous solution , chemical engineering , spray drying , precipitation , particle size , aqueous medium , raw material , chemistry , composite material , organic chemistry , physics , meteorology , engineering
Disperse dyes are poorly water‐soluble and difficult to stably disperse in an aqueous medium, which greatly limits their application in dyeing synthetic fibers. Micronization can solve this problem. Herein, a facile way to prepare stable aqueous nanodispersions of disperse dye (C.I. disperse yellow 54) is presented by combining high‐gravity antisolvent precipitation in a rotating packed bed (RPB) with spray drying. The as‐prepared product had an average particle size of 120 nm, which could be readily redispersed in water. Compared with raw dye, the wettability and dispersibility of disperse dye nanoparticles were remarkably improved. Furthermore, the dyeing properties of the nanodispersions were obviously better than those of the commercial dye, which was micronized by ball milling.