Improved Dyeing of Meta-aramid Based on Particle Flow Dyeing Mechanism Using Hot-pressing Dyeing Method

Chen, Xin; Sheng, Dan; Xia, Honghui; Xu, Weilin; Deng, Bo; Cao, Gaoshao

doi:10.1007/s12221-020-9976-7

Cited by 5 publications

(4 citation statements)

References 23 publications

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“…9 Therefore, colour becomes necessary for applying meta-aramid in textile. 10 The dyeing of meta-aramid fabrics is typically performed using disperse dyes [11][12][13][14] or cationic dyes. [15][16][17][18][19][20][21][22][23] However, conventional dyeing methods usually present poor dye exhaustion property since the compact structure of meta-aramid fibre will prevent dye molecules from penetrating the fibre.…”

Section: Introductionmentioning

confidence: 99%

“…24,25 Moreover, the fastness properties of dyed fabrics are often unsatisfactory. 13,17 Therefore, many improved dyeing methods have been established. These include the utilisation of significantly higher temperatures (than those employed in conventional methods), 26 the addition of carriers, 12,20 pretreatment of fabrics, [14][15][16]19 or dyeing in ionic liquids 22 or supercritical carbon dioxide systems.…”

Section: Introductionmentioning

confidence: 99%

“…The dyeing of meta ‐aramid fabrics is typically performed using disperse dyes 11–14 or cationic dyes 15–23 . However, conventional dyeing methods usually present poor dye exhaustion property since the compact structure of meta ‐aramid fibre will prevent dye molecules from penetrating the fibre 24,25 .…”

Section: Introductionmentioning

confidence: 99%

“…However, conventional dyeing methods usually present poor dye exhaustion property since the compact structure of meta ‐aramid fibre will prevent dye molecules from penetrating the fibre 24,25 . Moreover, the fastness properties of dyed fabrics are often unsatisfactory 13,17 . Therefore, many improved dyeing methods have been established.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Coupling coloration of meta‐aramid fabric utilising diazonium salts from weakly basic aromatic amines

Jiang

Song

Cui

et al. 2023

Coloration Technology

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Meta‐aramid fibre exhibits poor dyeing performance when treated using conventional dyeing methods. In this study, coloration of meta‐aramid fabrics was performed at room temperature utilising diazonium salts from weakly basic aromatic amines and was achieved via in situ construction of azo chromophores on the meta‐phenylenediamine moiety. To promote diazonium‐salt penetration into the meta‐aramid fibre, the pretreatment of meta‐aramid fabrics with dimethyl sulfoxide at 55°C for 30 min and the utilisation of methanol were involved during the coloration process. As a result, the fabrics could be coloured with deep, levelled and firm shades of brown series. The azo chromophore is derived from the skeleton of the polyamide chain. Therefore, the coloured fabrics exhibit good resistance to organic solvents as well as good to excellent colour fastness to soaping, rubbing and sublimation. A study of the coloration mechanism revealed that the terminal and middle meta‐phenylenediamine moieties serve as the main coupling reaction sites. When treated with a diazonium salt, the highly reactive terminal meta‐phenylenediamine moiety reacted first and generated chromophores with an absorption peak in the long‐wavelength region. However, such chromophores only contributed a limited colour depth owing to the limited number of the terminals. If excess diazonium salts were used, the main hue can be attributed to the azo chromophores based on the massive middle meta‐phenylenediamine moieties, although these moieties are less reactive than the terminal meta‐phenylenediamine moieties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Coupling coloration of meta‐aramid fabric utilising diazonium salts from weakly basic aromatic amines

Jiang

Song

Cui

et al. 2023

Coloration Technology

View full text Add to dashboard Cite

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Concurrent Dyeing and Finishing of Textile Fabrics Using Chemically Modified Peanut Red Skin Extract

et al. 2023

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Progressive environmental awareness and legislation regarding the pollutants discharged from textile coloration plants allocate natural colorants in the forefront position for the dyeing and printing of many textile substrates. In this study, a genuine dye was synthesized by combining the diazonium salt of m-anisidine with a crude extract of peanut skin. The melting point of the synthesized dye (SD) as well as its Fourier transform infrared and UV–Visible spectra was recorded. The SD was used in the dyeing of wool, cotton, Lyocell®, and polyester fabrics with different dye shades, pH, time, and temperature. The color strength, colorimetric data, fastness properties, antimicrobial efficiency, ultraviolet protection factor, and tensile properties of the dyed fabrics were evaluated. The SD was a good colorant for wool and polyester fabrics but of lower substantivity for cotton and Lyocell®. The fastness properties of the dyed fabrics against light, washing, crocking, and perspiration were good to excellent. The dyed fabrics exhibited antimicrobial properties against Gram + ve bacteria, Gram − ve bacteria, and pathogenic fungus (Candida albicans) to different extents, depending on the dyed fabric and test species. Most of the dyed wool samples retained their antimicrobial properties even after ten washing cycles. The ultraviolet protection factor of the dyed fabrics was enhanced without deterioration of their tensile properties.

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Supercritical CO2 as a potential tool for the eco-friendly printing of meta-aramid

Fang¹,

Zheng²,

Li³

et al. 2023

Journal of CO2 Utilization

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Improved Dyeing of Meta-aramid Based on Particle Flow Dyeing Mechanism Using Hot-pressing Dyeing Method

Cited by 5 publications

References 23 publications

Coupling coloration of meta‐aramid fabric utilising diazonium salts from weakly basic aromatic amines

Coupling coloration of meta‐aramid fabric utilising diazonium salts from weakly basic aromatic amines

Concurrent Dyeing and Finishing of Textile Fabrics Using Chemically Modified Peanut Red Skin Extract

Supercritical CO2 as a potential tool for the eco-friendly printing of meta-aramid

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