Synthesis of novel reactive disperse dyes comprising carbamate and cyanuric chloride groups for dyeing polyamide and cotton fabrics in supercritical carbon dioxide

Penthala, Raju; Oh, Hyeon Cheol; Park, Si Hyeong; Lee, In Yeol; Ko, Eun Hee; Son, Young‐A

doi:10.1016/j.dyepig.2021.110003

Cited by 26 publications

(7 citation statements)

References 37 publications

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“…9A. It can be seen that all samples showed characteristic peaks of cellulose at 3275 cm -1 (O-H stretching), 2898 cm -1 (C-H stretching), 1647 cm -1 (C = O stretching), 1431 cm -1 (C-H bending), 1369 cm -1 (C-H stretching), 1115 cm -1 (C-O stretching), and 899 cm -1 (C-O stretching) (Fu et al, 2020;Huang et al, 2022;Penthala et al, 2022;Zambrano et al, 2021). These results indicated that the chemical structure of cellulose did not change signi cantly after the dyeing process.…”

Section: Of Dyeing Methods On Physicochemical Properties Of Cotton Bersmentioning

confidence: 91%

Salt-free reactive dyeing of cotton fibers in a ternary solvent system with different reactive dye chemistry

Wang

Sheng

Zhang

et al. 2022

Preprint

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Reactive dye chemistry plays a crucial role in the dyeing of cotton fibers. Herein, to provide insight on the adaptability of salt-free reactive dyeing for sustainable environmental development, the effect of dye chemistry on the dyeing properties of cotton fibers in the proposed EtOH–CCl4–H2O ternary solvent system was investigated in detail. Twelve commonly used reactive dyes were selected as representative dyes and applied to cotton yarns based on their reactive groups, molecular weights, chromophores, and sulfonate groups. Compared with the conventional aqueous dyeing method, almost all reactive dyes showed an enhanced dyeing performance in the EtOH–CCl4–H2O (55:40:5) mixture. Dyeing results of cotton yarns indicated that the investigated copper phthalocyanine dyes and azo dyes are suitable dye categories for dyeing in the EtOH–CCl4–H2O mixture. This study may offer a theoretical strategy for the industrial-scale production of cotton fibers using the developed solvent assisted dyeing technology. The organic solvents recovery will be carried out in the future study.

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Section: Of Dyeing Methods On Physicochemical Properties Of Cotton Bersmentioning

confidence: 91%

Salt-free reactive dyeing of cotton fibers in a ternary solvent system with different reactive dye chemistry

Wang

Sheng

Zhang

et al. 2022

Preprint

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“…Disperse dyes, unlike other cationic or anionic colourants, contain anthraquinone or azo groups but do not contain either positively or negatively charged groups. Disperse dyes have good light and wash fastness, as well as provide powerful bright colours although have a low water solubility [11].…”

Section: Solvent Dyesmentioning

confidence: 99%

Methylene blue and Congo red removal by activated carbons: A current literature

Hao

Othman

Zaini

2022

Acta Universitatis Sapientiae, Agriculture and Environment

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Dye is a major source of water pollution. This mini-review highlights the origin of dye, its removal strategies, and the recent literature of methylene blue and Congo red adsorption by activated carbons. Adsorption is a unique process that relies upon the physicochemical properties of the activated carbon and the inherent characteristics of dye. Also, factors affecting adsorption, such as contact time, temperature, and concentration, were discussed to gain insight into dye removal mechanisms.

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“…20 To solve this problem thoroughly, we explored the possibility of linking the dye molecules with the fibre by the covalent bond, just like the cellulose or protein fabrics dyeing with conventional hydrophilic reactive dyes. 21,22 Development of suitable reactive dyes for synthetic fibres has long been the desire of dye chemists. For example, in the 1990s, Hallas and coworkers synthesised a series of aziridinyl azo dyes which were thought to be reactive to polyester fibres under high temperature dyeing conditions (Figure 1A).…”

Section: Introductionmentioning

confidence: 99%

“…However, since the conventional disperse dyes can only provide weak affinity, such as hydrogen bond, van der Waals force, or hydrophobic interaction, with the fibre, the dyeing of polypropylene fabrics is still not so satisfactory 20 . To solve this problem thoroughly, we explored the possibility of linking the dye molecules with the fibre by the covalent bond, just like the cellulose or protein fabrics dyeing with conventional hydrophilic reactive dyes 21,22 . Development of suitable reactive dyes for synthetic fibres has long been the desire of dye chemists.…”

Section: Introductionmentioning

confidence: 99%

Design and synthesis of diazirine‐containing dyes for polypropylene fibre: A study on the effect of alkyl chain

Guo

Jiang

Chai

et al. 2022

Coloration Technology

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The dyeing of polypropylene fabrics utilising conventional‐disperse dyes often meets poor colour yield and fastness problems, fundamentally caused by the low affinity between dyes and polypropylene fibres. In this article, a new class of hydrophobic reactive dyes that can react with polypropylene were designed using diazirine moiety as a reactive group, azo structure as a chromophore, and an ester group as a linking bridge. The difference among these dyes was the alkyl chain length on the azo chromophore, which was used to fine‐tune the affinity between the dyes and fibre. The structures of the synthesised dyes and intermediates were characterised and confirmed using nuclear magnetic resonance, mass spectrometry, and infrared spectrometry. The absorption and thermal properties of the dyes were also studied to ensure their feasibility for dyeing application. In addition, the diazirine dyes were successfully applied to dye polypropylene fabrics using a two‐step process by dyeing in a non‐aqueous solvent and fixing it under heating. The dyes and polypropylene fibre were demonstrated to react, where the fixation values were in the range 64.5–76.4%. The systematic study of the structure–property relationship demonstrated the positive effect of the alkyl chain in promoting colour yield, however, accompanied by a slightly reduced fixation value. Due to the chemical bonding of the dye molecules to the fibre, the dyed polypropylene fabrics exhibited excellent colour fastness property, making the dyeing technology very promising for future industrial applications.

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Synthesis of novel reactive disperse dyes comprising carbamate and cyanuric chloride groups for dyeing polyamide and cotton fabrics in supercritical carbon dioxide

Cited by 26 publications

References 37 publications

Salt-free reactive dyeing of cotton fibers in a ternary solvent system with different reactive dye chemistry

Salt-free reactive dyeing of cotton fibers in a ternary solvent system with different reactive dye chemistry

Methylene blue and Congo red removal by activated carbons: A current literature

Design and synthesis of diazirine‐containing dyes for polypropylene fibre: A study on the effect of alkyl chain

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