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Single bath dyeing of modified nylon/cotton blended fabrics using direct/acid dyes

Single bath dyeing of modified nylon/cotton blended fabrics using direct/acid dyes This study aims to deal with the dyeing of nylon-/cotton-blended fabric in one bath using direct and acid dyes.Design/methodology/approachThe cellulose in cotton/nylon-blended fabric was chemically modified using 3-chloro-2-hydroxypropyl tri-methyl ammonium chloride (CHPTAC) as cationizing agent to impart positive charge on the cellulose. The modified and unmodified blended fabrics were dyed in a single bath with direct and acid dyes under various concentrations of 0.5, 1, 2, 4 and 6 per cent on the weight of fabric by exhaust method. The dyeing of modified and unmodified fabrics was characterized through the properties such as K/S and colorfastness to washing, rubbing and light.FindingsThe modified fabric exhibited higher color yield, comparable rubbing fastness and good washing fastness.Originality/valueThe dye uptake was maximum in a single-bath dyeing process of nylon-/cotton-blended fabrics without electrolyte addition, which minimizes the impact of dyes on environment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pigment & Resin Technology Emerald Publishing

Single bath dyeing of modified nylon/cotton blended fabrics using direct/acid dyes

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References (18)

Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0369-9420
DOI
10.1108/prt-09-2019-0084
Publisher site
See Article on Publisher Site

Abstract

This study aims to deal with the dyeing of nylon-/cotton-blended fabric in one bath using direct and acid dyes.Design/methodology/approachThe cellulose in cotton/nylon-blended fabric was chemically modified using 3-chloro-2-hydroxypropyl tri-methyl ammonium chloride (CHPTAC) as cationizing agent to impart positive charge on the cellulose. The modified and unmodified blended fabrics were dyed in a single bath with direct and acid dyes under various concentrations of 0.5, 1, 2, 4 and 6 per cent on the weight of fabric by exhaust method. The dyeing of modified and unmodified fabrics was characterized through the properties such as K/S and colorfastness to washing, rubbing and light.FindingsThe modified fabric exhibited higher color yield, comparable rubbing fastness and good washing fastness.Originality/valueThe dye uptake was maximum in a single-bath dyeing process of nylon-/cotton-blended fabrics without electrolyte addition, which minimizes the impact of dyes on environment.

Journal

Pigment & Resin Technology – Emerald Publishing

Published: Apr 20, 2020

Keywords: Research paper; Cotton; Textiles; Acid dye; Colour; Cellulose modification; Direct dye; Colour strength

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