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Coloration of Apocynum venetum /cotton blends with an acid dye through combined pretreatment using cationic nanoparticles
Author(s) -
Liu Xiuming,
Li Caiyan,
Fang Kuanjun,
Shu Dawu,
Guo Zijing
Publication year - 2017
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/cote.12281
Subject(s) - dyeing , cationic polymerization , nanoparticle , sodium hydroxide , acid dye , nuclear chemistry , chemistry , reactive dye , x ray photoelectron spectroscopy , scanning electron microscope , chemical engineering , materials science , polymer chemistry , organic chemistry , nanotechnology , composite material , engineering
Cationic copolymer nanoparticles were used to modify Apocynum venetum /cotton blended fabrics. The modified blends were then dyed using CI Acid Red 14. In order to enhance the colour performance, the effects of combined pretreatment using nanoparticles and sodium hydroxide (Na OH ) or carboxymethylcellulose ( CMC ) or plasma were investigated. The results show that combined pretreatment with Na OH and nanoparticles improved the dyeing effect. The optimum concentrations of Na OH and nanoparticles were 100 and 2 g l −1 respectively. In addition, using CMC to pretreat the fabrics could also improve the acid dyeing performance. However, the combination of plasma pretreatment and cationic nanoparticle modification produced the best colour performance for acid‐dyed A. venetum /cotton blends. The dye exhaustion rate is highest (up to 95%) with plasma pretreatment. Scanning electron microscopy revealed that combined treatment with plasma and nanoparticles resulted in a far greater number of nanoparticles being deposited on the fibre surface. X‐ray photoelectron spectroscopy indicated that the pretreatments with different procedures significantly changed the chemical components of the fibre surfaces. The aromatic rings of acid dye molecules covered the fibre surfaces after plasma and nanoparticle pretreatment and acid dyeing.