A study of reusing vinyl sulfone based reactive dye for dyeing cotton fiber

Kan, Chi Wai; Fong, Ki Wai

doi:10.1007/s12221-017-7430-2

Cited by 10 publications

(5 citation statements)

References 16 publications

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“…Reactive dyes have developed rapidly in cotton fabric dyeing. They are widely used due to the advantages of high color fastness, complete color chromatography, high color saturation, and bonding reaction with cotton fabrics (David et al, 2014;Kan et al, 2017;Yuruk et al, 2019). However, due to the particularity of its structure, it is hydrolyzed during dyeing and storage to generate hydrolyzed dyes (Wang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Hydrolyzed dyes as emerging environmental contaminants: household washing sources and electrochemical degradation

Zhao

et al. 2023

Preprint

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High-color saturation cotton fabrics dyed with reactive dyes often discharge hydrolyzed dyes during the washing process, resulting in dye transfer and water pollution because of the properties prone to hydrolysis of reactive dyes. To explore the sources of hydrolyzed dyes in the washing microenvironment, the hydrolysis experiment of pure reactive red 195 (RR195) and the washing experiment using some highly saturated colored fabrics (CFSCs) dyed with RR195 in a designed miniature washing device were carried out successively. Reversed-phase high-performance liquid chromatography (RP-HPLC) was used for the analysis of hydrolysis intermediates and final products of reactive red 195. The experimental results indicated that the structure of the dye shed on the fabric is consistent with the final hydrolysate of reactive red 195, which is the main colored contaminant in washing wastewater. To eliminate the hydrolyzed dyes from the source, an electrochemical degradation device was originally designed to degrade hydrolyzed dyes. The degradation parameters, including voltage, electrolyte concentration, and dye shedding concentration are discussed in the electrochemical degradation experiment. The electrochemical degradation device was also successfully implemented and verified in a home washing machine. The results showed that there were three hydrolysis intermediates and one final hydrolysate product in the hydrolysis process of RR195, and the washing and shedding of colored pollutants were the products of simultaneous hydrolysis of double reaction groups. The designed electrochemical degradation device can effectively eliminate the hydrolyzed reactive dyes and reduce the contaminants’ discharge during household washing.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Hydrolyzed dyes as emerging environmental contaminants: household washing sources and electrochemical degradation

Zhao

et al. 2023

Preprint

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“…Furthermore, DVS has two vinyl reactive ends that can replace the hydrogen in OH groups, present on the cellulose surface and PSS by vinyl sulfone fragments via Oxa-Michael nucleophilic addition. DVS could, therefore, covalently crosslink different elements within the coating while also forming covalent bonds with the cellulose surface, similar to vinyl sulfone reactive dyes to textiles [29], to yield a robust conductive coating (Fig. 1a inset).…”

Section: Synthesis Of Pedot:pss-based Conductive Threadsmentioning

confidence: 99%

PEDOT:PSS-modified cotton conductive thread for mass manufacturing of textile-based electrical wearable sensors by computerized embroidery

Alshabouna

Lee²,

Barandun³

et al. 2022

Materials Today

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“…DVS has two vinyl reactive ends that can replace the hydrogen in OH groups, present on the cellulose surface and PSS by vinyl sulfone fragments via Oxa-Michael nucleophilic addition. DVS could, therefore, covalently crosslink different elements within the coating while also forming covalent bonds with the cellulose surface, similar to vinyl sulfone reactive dyes to textiles [25] , to yield a robust conductive coating (Figure 1A inset). Furthermore, unreacted DVS acts as a second dopant to improve the conductivity of PEDOT, further increasing its utility as an additive.…”

Section: Synthesis Of Pedot:pss-based Conductive Threadsmentioning

confidence: 99%

PEDOT:PSS-Modified Cotton Conductive Thread for Mass Manufacturing of Textile-Based Electrical Wearable Sensors by Computerized Embroidery

Alshabouna

Lee

Barandun

et al. 2021

Preprint

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The textile industry has advanced processes that allow computerized manufacturing of garments at large volumes with precise visual patterns. The industry, however, is not able to mass fabricate clothes with seamlessly integrated wearable sensors, using its precise methods of fabrication (such as computerized embroidery). This is due to the lack of conductive threads compatible with standard manufacturing methods used in industry. In this work, we report a low-cost poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)-modified cotton conductive thread (PECOTEX) that is compatible with computerized embroidery. The PECOTEX was produced using a crosslinking reaction between PEDOT:PSS and cotton thread using divinyl sulfone as the crosslinker. We extensively characterized and optimized our formulations to create a mechanically robust conductive thread that can be produced in large quantities in a roll-to-roll fashion. Using PECOTEX and a domestic computerized embroidery machine, we produced a series of wearable electrical sensors including a facemask for monitoring breathing, a t-shirt for monitoring heart activity and textile-based gas sensors for monitoring ammonia as technology demonstrators. PECOTEX has the potential to enable mass manufacturing of new classes of low-cost wearable sensors integrated into everyday clothes.

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A study of reusing vinyl sulfone based reactive dye for dyeing cotton fiber

Cited by 10 publications

References 16 publications

WITHDRAWN: Hydrolyzed dyes as emerging environmental contaminants: household washing sources and electrochemical degradation

WITHDRAWN: Hydrolyzed dyes as emerging environmental contaminants: household washing sources and electrochemical degradation

PEDOT:PSS-modified cotton conductive thread for mass manufacturing of textile-based electrical wearable sensors by computerized embroidery

PEDOT:PSS-Modified Cotton Conductive Thread for Mass Manufacturing of Textile-Based Electrical Wearable Sensors by Computerized Embroidery

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