Dyeing of Polyester with Reactive Dyestuffs Using Nano-Chitosan

Najafzadeh, Neda; Habibi, Sima; Ghasri, Mohammadreza A.

doi:10.1177/155892501801300207

Cited by 14 publications

(13 citation statements)

References 7 publications

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“…This increases polyester hydrophilicity and facilitates wetting of surfaces. The alkaline hydrolysis, in addition to physical changes, induces chain cleavage as OH-attacks esterbonded carbonyl carbon resulting in hydroxyl (-OH) and -COO groups on the fiber surface as shown in Schem 3 [27].…”

Section: Kinetics Of Mass Loss Of Treated Polyesterfabrics With Caustmentioning

confidence: 99%

Improving Dyeing Parameters of Polyester/Cotton Blended Fabrics by Caustic Soda, Chitosan, and Their Hybrid

2020

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Section: Kinetics Of Mass Loss Of Treated Polyesterfabrics With Caustmentioning

confidence: 99%

Improving Dyeing Parameters of Polyester/Cotton Blended Fabrics by Caustic Soda, Chitosan, and Their Hybrid

2020

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“…Disperse dyes are applied to polyester fibers by stable dispersing in water contain auxiliaries, especially dispersants at a high temperature (approximately 130 • C) and high pressure. Under these conditions, the amorphous region in the fiber swells, and the dyes are adsorbed on the fiber surface and then transferred into the fiber [4][5][6][7]. This process requires a lot of energy and special equipment.…”

Section: Introductionmentioning

confidence: 99%

The Effect of DBD Plasma Activation Time on the Dyeability of Woven Polyester Fabric with Disperse Dye

Kim

Hong

Thi³

et al. 2021

Polymers

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This study consists of two parts. In the first, the woven polyester fabric, after washing to remove lubricant oils, was treated with the dielectric barrier discharge (DBD) plasma at the short plasma exposure time (from 15 to 90 s). The effect of the plasma exposure time on the activation of the polyester fabric was assessed by the wicking height of the samples. The results show that the wicking height in the warp direction of the plasma-treated samples improved but was virtually unchanged in the weft direction. Meanwhile, although the tensile strength in the warp direction of the fabric was virtually unaffected despite the plasma treatment time up to 90 s, in the weft direction it increased slightly with the plasma treatment time. Scanning Electron Microscope (SEM) images and the X-ray Photoelectron Spectroscopy (XPS) spectra of the samples before and after the plasma treatment were used to explain the nature of these phenomena. Based on the results of the first part, in the second part, two levels of the plasma treatment time (30 and 60 s) were selected to study their effect on the polyester fabric dyeability with disperse dyes. The color strength (K/S) values of the dyed samples were used to evaluate the dyeability of the fabric. The SEM images of the dyed samples also showed the difference in the dyeability between the plasma-treated and untreated samples. A new feature of this study is the DBD plasma treatment condition for polyester fabrics. The first is the use of DBD plasma in air (no addition of gas). Second is the very short plasma treatment time (only 15 to 90 s); this condition will be very favorable for the deployment on an industrial scale.

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“…Due to the aforementioned properties, chitosan is used in medical fields such as tissue engineering and wound dressing. 7,8 The content of free amino groups in the polysaccharide, defined as the degree of deacetylation (DD), can be employed to differentiate between chitin and chitosan. 9,10 Chitosan also contains free amino groups which make it a positively charged polyelectrolyte in a pH lower than 6; this contributes to its higher solubility in comparison to chitin.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of gelatin–chitosan–gum tragacanth with thermal annealing cross-linking strategy

Hajinasrollah

Habibi

Nazockdast

2019

Journal of Engineered Fibers and Fabrics

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Polymer blending is a promising method to provide nanofibers with improved properties and minimal defects. Recently, gelatin-chitosan-based nanofibers have attracted great attention due to their biocompatible properties which have made them a great candidate for biomedical applications. However, current methods for fabricating gelatin–chitosan nanofibers require the use of corrosive and toxic solvents and cross-linking agents. In the present research, gum tragacanth followed by thermal annealing is employed to improve the properties of nanofibers. The morphology of the electrospun blend nanofibers was characterized using a scanning electron microscope, while the miscibility and thermal behavior of the blends were determined using a Fourier transform-infrared spectrometer/attenuated total reflectance. The optimum results were achieved in blend gelatin–chitosan–gum tragacanth in the ratio 7:3:1, which resulted in nanofibers with a mean diameter of 115.8 ± 10.66 nm. Antibacterial tests were conducted against Staphylococcus aureus and Escherichia coli bacteria. Biodegradability of blend nanofibers was also investigated. It is proved that thermal annealing in presence of gum tragacanth could be a suitable candidate for the stability of nanofibers followed by omitting toxic cross-linkers.

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Dyeing of Polyester with Reactive Dyestuffs Using Nano-Chitosan

Cited by 14 publications

References 7 publications

Improving Dyeing Parameters of Polyester/Cotton Blended Fabrics by Caustic Soda, Chitosan, and Their Hybrid

Improving Dyeing Parameters of Polyester/Cotton Blended Fabrics by Caustic Soda, Chitosan, and Their Hybrid

The Effect of DBD Plasma Activation Time on the Dyeability of Woven Polyester Fabric with Disperse Dye

Fabrication of gelatin–chitosan–gum tragacanth with thermal annealing cross-linking strategy

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