Abstract
The Poly[Styrene-Butyl acrylate-(P-vinylbenzyl trimethyl ammonium chloride)] P(St-BA-VBT) nanospheres with N+(CH3)3 functional groups were successfully prepared and applied to modify cotton fabrics using a pad-dry process. The obtained cationic cotton fabrics were dyed with pad-steam dyeing with reactive dye. The results show that the appropriate concentration of nanospheres was 4 g/L. The sodium carbonate of 25 g/L and steaming time of 3 min were suitable for dyeing cationic cotton with 25 g/L of C.I. Reactive Blue 222. The color strength and dye fixation rates of dyed cationic cotton fabrics increased by 39.4% and 14.3% compared with untreated fabrics. Moreover, sodium carbonate and steaming time were reduced by 37.5% and 40%, respectively. The rubbing and washing fastness of dyed fabrics were equal or higher 3 and 4–5 grades, respectively. Scanning electron microscopy (SEM) images revealed that the P(St-BA-VBT) nanospheres randomly distributed and did not form a continuous film on the cationic cotton fiber surfaces. The X-ray photoelectron spectroscopy (XPS) analysis further demonstrated the presence of cationic nanospheres on the fiber surfaces. The cationic modification did not affect the breaking strength of cotton fabrics.
Highlights
Cotton is one of the most widely used natural polymer fibers in textiles and is usually dyed with reactive dyes [1,2]
Cotton fabrics were modified with 4 g/L of cationic P(St-Butyl acrylate was (BA)-vinylbenzyl trimethyl ammonium ammonium chloride (VBT)) nanospheres
The sodium carbonate of 25 g/L and steaming time of 3 min were suitable for dyeing cationic cotton with 25 g/L
Summary
Cotton is one of the most widely used natural polymer fibers in textiles and is usually dyed with reactive dyes [1,2]. Polymers 2018, 10, 564 preferred cationic agent for the cationization of cotton fabrics [10,12,13]. In contrast the linear with low molecular polymer compounds compounds with a large number of reactive groups are of high stability, and the cotton fabrics grafted with a large number of reactive groups are of high stability, and the cotton fabrics grafted with with compounds could achieve excellent dyeing performance absenceofofinorganic inorganicsalts salts [7,17]. Appreciable progress has been made for enhancing dye utilization using these using these functional polymers, they still have the drawbacks of the poor air permeability and functional polymers, they still have the drawbacks of the poor air permeability and handle of dyed handle dyed fabrics. Cationic P(St-BA-VBT) nanospheres functional groups groups were synthesized and grafted on cotton fabrics using a pad-dry process, and the fabrics were dyed synthesized and grafted on cotton fabrics using a pad-dry process, and the fabrics were dyed with
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