Ultrasonic-assisted dyeing of Nylon-6 nanofibers

Abdul Wahab Jatoi; Farooq Ahmed; Muzamil Khatri; Anwaruddin Tanwari; Zeeshan Khatri; Hoik Lee; Ick Soo Kim

doi:10.1016/j.ultsonch.2017.04.010

Ultrasonic-assisted dyeing of Nylon-6 nanofibers

Ultrason Sonochem. 2017 Nov:39:34-38. doi: 10.1016/j.ultsonch.2017.04.010. Epub 2017 Apr 9.

Authors

Abdul Wahab Jatoi¹, Farooq Ahmed², Muzamil Khatri³, Anwaruddin Tanwari⁴, Zeeshan Khatri⁵, Hoik Lee², Ick Soo Kim⁶

Affiliations

¹ Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan; Nanomaterial Research Group, Department of Textile Engineering, Mehran University of Engineering and Technology, Jamshoro 76062, Pakistan.
² Nanomaterial Research Group, Department of Textile Engineering, Mehran University of Engineering and Technology, Jamshoro 76062, Pakistan.
³ Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan.
⁴ Department of Industrial Engineering, Mehran University of Engineering and Technology, Jamshoro 76062, Pakistan.
⁵ Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan; Nanomaterial Research Group, Department of Textile Engineering, Mehran University of Engineering and Technology, Jamshoro 76062, Pakistan. Electronic address: zeeshan.khatri@faculty.muet.edu.pk.
⁶ Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan. Electronic address: kim@shinshu-u.ac.jp.

PMID: 28732954
DOI: 10.1016/j.ultsonch.2017.04.010

Abstract

We first time report ultrasonic dyeing of the Nylon 6 nanofibers with two disperse dyes CI Disperse blue 56 and CI Disperse Red 167:1 by utilising ultrasonic energy during dyeing process. The Nylon 6 nanofibers were fabricated via electrospinning and dyed via batchwise method with and without sonication. Results revealed that ultrasonic dyeing produce higher color yield (K/S values) and substantially reduces dyeing time from 60min for conventional dyeing to 30min can be attributed to breakage of dye aggregate, transient cavitation near nanofiber surface and mass transfer within/between nanofibers. Color fastness results exhibited good to very good dye fixation. SEM images exhibit insignificant effect of sonication on morphology of the nanofibers. Our research results demonstrate ultrasonic dyeing as a better dyeing technique for Nylon 6 nanofibers with higher color yield and substantially reduced dyeing time.

Keywords: Color yield; Disperse dyes; Electrospinning; Nylon 6 nanofibers; Ultrasonic energy.