Clean dyeing of cotton fabrics by cationic colored nanospheres. (20th October 2022)

• Record Type: Journal Article
• Authors: Zhang, Shuai; Fang, Kuanjun; Liu, Xiuming; Qiao, Xiran; Wang, Jinkun; Sun, Fuyun
• Is Part Of: Journal of cleaner production. Volume 372(2022)
• Publication Date: 2022-10-20
• Subjects: Reactive dyes -- Dye nanospheres -- Polyethyleneimine -- Dye loading -- Rolling and dyeing; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2022.133712
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: Dye/polymer nanospheres, a new type of colorant, are applied in various applications in printing inks, coatings, textiles and other fields by virtue of its excellent color properties. In this research, we adopted a novel composite dye nanospheres modified with polyethyleneimine, which was further applied to the environmentally friendly dyeing of cotton fabrics. After modification, the cationic polyethyleneimine composite dye nanospheres (PDNP) have homogeneous particle size, better monodispersity and stability in aqueous solution. In addition, the hydrated particle size increased by 10 nm and the zeta potential changed from −30.4 to 40.7 mV after polyethyleneimine modification. Meanwhile, the color depth of cotton fabrics dyed with different colors of PDNPs is 3–5 times of the corresponding dye colored samples. The color fastness and durability of the PDNPs dyed cotton fibers are satisfied for practical applications. The colored PDNPs can directly dye untreated cotton fabrics without adding salt and alkali, implying a simple dyeing process and pollution reduction. Graphical abstract: Image 1 Highlights: Cationic colored nanospheres have a higher dye loading. Colored PDNPs can directly dye cotton fabrics without adding salt and alkali. Colored PDNPs shorten the dyeing process of cotton fabrics. The cotton fabrics dyed with colored PDNPs have better color depth.