4.5 Article

Alkyl Polyglucoside (APG) Nonionic Surfactant-Based Reverse Micellar Dyeing of Cotton Fabric - A Study of Reactive Dyes with Different Functional Groups

Journal

JOURNAL OF NATURAL FIBERS
Volume -, Issue -, Pages -

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/15440478.2022.2136324

Keywords

Cotton fabric; reactive dyes; functional groups; reverse micelle; non-aqueous dyeing; alkyl polyglucoside; decamethylcyclopentasiloxane

Funding

  1. Hong Kong Polytechnic University [ZJM8]
  2. Research Grants Council of the Hong Kong Special Administrative Region, China [PolyU 15214621]

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This study investigated the reverse micellar dyeing of cotton woven fabrics using non-aqueous medium and alkyl polyglucoside-based nonionic surfactant (APG-based) with reactive dyes. The results showed that the APG reverse micellar method achieved higher color yield and better dye uptake compared to conventional water-based dyeing. The washing fastness, leveling, and color fading properties were comparable between the two methods. Hetero-bifunctional reactive dyes had the highest color yield, followed by homo-bifunctional reactive dyes and mono-functional reactive dyes. Mono-functional reactive dyes and homo-bifunctional reactive dyes had the best leveling properties in the non-aqueous dyeing medium.
Reverse micellar dyeing of cotton woven fabrics with natural and biodegradable alkyl polyglucoside-based (APG-based) nonionic surfactant in decamethylcyclopentasiloxane (D5) non-aqueous medium with reactive dyes of different functional groups was investigated and compared with conventional aqueous water-based dyeing in terms of reflectance, color yield, levelness, CIE L*a*b* values, washing fastness and color fading properties. Experimental results have revealed that APG reverse micellar method can provide a higher color yield (K/S-sum value) and lower color reflectance (better dye uptake) than conventional water-based method, along with comparable washing fastness, leveling and color fading properties. Hetero-bifunctional reactive dyes can attain the highest color yield, followed by homo-bifunctional reactive dyes and mono-functional reactive dyes. Mono-functional reactive dyes and homo-bifunctional reactive dyes produce the best levelling properties with smallest levelness variation when compared with that of hetero-bifunctional reactive dyes in non-aqueous D5 dyeing medium.

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