Effects of Oxygen Plasma Treatment on the Physical and Chemical Properties of Wool Fiber Surface

Barani, Hossein; Calvimontes, Alfredo

doi:10.1007/s11090-014-9581-x

Cited by 38 publications

(19 citation statements)

References 39 publications

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“…3 Plasma treatment of wool fibers has also been shown to reduce fiber breakage during the spinning process. 5 Genetic modifications and plasma treatments, however, can be expensive. Chemical cross-linking can be much less expensive and an easier way to enhance the tensile properties of the fiber.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Strength of Wool Fiber Using a Soy Flour Sugar-Based “Green” Cross-linker

Patil

2019

ACS Omega

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This study presents the preparation and use of a “green” cross-linker derived from a waste soy flour sugar (SFS) mixture to cross-link keratin in wool fibers to increase their tensile properties. Earlier studies of keratin cross-linking involved chemicals such as glyoxal and glutaraldehyde that are toxic to humans. In addition, their effectiveness in improving tensile properties has been significantly lower than obtained in this study using modified SFS. Characterization of SFS using 13 C NMR revealed the presence of five sugars having different molecular lengths. Oxidation of SFS using sodium periodate resulted in multiple aldehyde groups, as confirmed by 1 H NMR and attenuated total reflection Fourier-transform infrared (ATR-FTIR). The oxidized SFS (OSFS) when used to cross-link the amine groups from the wool keratin resulted in 36 and 56% increase in the tensile strength and Young’s modulus of the fibers, respectively. These significant increases in strength and Young’s modulus were a result of having multiple aldehyde groups on each sugar molecule as well as different molecular lengths of sugars, which favored cross-links of multiple lengths within the cortical cell matrix of wool fibers. The cross-linking between the aldehyde groups in OSFS and amine groups in wool fibers was confirmed using ATR-FTIR and from the color change resulting from the Maillard reaction as well as decrease in moisture absorption by the fibers. Stronger wool fibers can not only increase the efficiencies of wool fiber spinning and weaving and reduce yarn and fabric defects but can also allow spinning finer yarns from the same fibers. Oxidized sugars with optimum molecular lengths can be used to cross-link other biological proteins as well, replacing the currently used toxic cross-linkers.

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Section: Introductionmentioning

confidence: 99%

Enhancing Strength of Wool Fiber Using a Soy Flour Sugar-Based “Green” Cross-linker

Patil

2019

ACS Omega

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“…This is because the increase in temperature favours the diffusion of pigment molecules into the interior of the fibres; however, excessively high temperatures cause the pigment to be unstable and decompose, and the amount of pigment dyed onto the fabrics is thus reduced. In addition, the surface of the wool fibres has a scale layer and a cortical layer structure , which affects the binding of the pigment to the polar groups on the fibres, resulting in the higher optimum dyeing temperature of the wool compared with the silk fabrics. It can be seen from Figure d that time had little effect on the dyeing of the M. anisopliae yellow pigment.…”

Section: Resultsmentioning

confidence: 99%

Yellow pigment of Metarhizium anisopliae and its application to the dyeing of fabrics

Yan

Yang

Zhou

et al. 2019

Coloration Technology

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Microbial dyes have received substantial attention because of their natural environmental protection, simple access, and reduced regional and seasonal restriction. In this work, a microbial dye, the yellow pigment produced by Metarhizium anisopliae, was first studied then applied. The strain produced by the culture was identified, and the conditions for producing yellow pigment were optimised. Further, the stability of M. anisopliae yellow pigment was examined, and the pigment was applied to the dyeing of silk and wool fabrics. The results showed that the homology of the strain with M. anisopliae was 99.98%. In liquid fermentation culture, the optimal carbon source was glucose, and the dosage was 30 g/l. The maximum pigment yield can be obtained by culturing with 4% v/v of inoculation quantity at pH 7 and 30 °C. In addition, the effects of pH, temperature and metal ions on the yellow pigment of M. anisopliae were significant. The optimum dyeing process conditions were dyeing temperatures of 80 °C for silk and 90 °C for wool, with a dyeing time of 60 min. This research developed a novel microbial dye and studied its application for the dyeing of protein fibres.

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“…1 Therefore, it is beneficial for improving the diffusion rate of dye molecules as a result of surface modification. 25 In addition, the introduction of more amino (–NH 2 ) and carboxyl (–COOH) groups to the surface of the Rex rabbit fibers increases the hydrophilic character of the Rex rabbit fibers and therefore increases its dyeability.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the scale edges of the treated fiber become sharper and some scales are peeled off. 25 This is attributed to plasma etching effect caused by the bombardment of active species from plasma gas with fiber surface. It is beneficial to eliminate the hydrophobic surface barrier of the fiber, and hence, more chances would be provided for the chemicals such as dyestuff to enter into the Rex rabbit fibers.…”

Section: Resultsmentioning

confidence: 99%

The surface modification by O₂ low temperature plasma to improve dyeing properties of Rex rabbit fibers

Han

Liu

et al. 2019

Journal of Engineered Fibers and Fabrics

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Dyeability of the fiber plays a very important role in the textile industry. The presence of cuticle scales on the surface of Rex rabbit fibers brings difficulties to dyeing process. In this study, O 2 low temperature plasma was used to improve the dyeability of Rex rabbit fibers and the two key parameters including the treating time and discharge power were optimized during O 2 low temperature plasma treatment. The impact of plasma treatment on the surface morphology, physical-chemical properties, and dyeing behavior of Rex rabbit fibers using anionic dyes were investigated by a series of characterization methods such as scanning electron microscopy, atomic force microscopy, Fourier transform infraredattenuated total reflection, and X-ray photoelectron spectroscopy. The surface dyeability and color fastness were studied by K/S measurement and washing fastness, respectively. The influence of O 2 low temperature plasma treatment on the mechanical properties of Rex rabbit fibers was inspected by the tensile strength measurement. The wettability of the samples was evaluated in terms of wetting time and contact angle. The O 2 low temperature plasma treatment resulted in a dramatic improvement in wettability of Rex rabbit fibers. X-ray photoelectron spectroscopy and Fourier transform infrared-attenuated total reflection analysis show that oxygen plasma treatment led to a significant increase in the content of sulfur oxides and polar groups such as (-C=O, -OH, and -NH 2 ) on the fiber surface and resulted in reinforced wettability, dyeing rate and dyeing fixation of Rex rabbit fibers.

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Effects of Oxygen Plasma Treatment on the Physical and Chemical Properties of Wool Fiber Surface

Cited by 38 publications

References 39 publications

Enhancing Strength of Wool Fiber Using a Soy Flour Sugar-Based “Green” Cross-linker

Enhancing Strength of Wool Fiber Using a Soy Flour Sugar-Based “Green” Cross-linker

Yellow pigment of Metarhizium anisopliae and its application to the dyeing of fabrics

The surface modification by O₂ low temperature plasma to improve dyeing properties of Rex rabbit fibers

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Effects of Oxygen Plasma Treatment on the Physical and Chemical Properties of Wool Fiber Surface

Cited by 38 publications

References 39 publications

Enhancing Strength of Wool Fiber Using a Soy Flour Sugar-Based “Green” Cross-linker

Enhancing Strength of Wool Fiber Using a Soy Flour Sugar-Based “Green” Cross-linker

Yellow pigment of Metarhizium anisopliae and its application to the dyeing of fabrics

The surface modification by O2 low temperature plasma to improve dyeing properties of Rex rabbit fibers

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Product

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The surface modification by O₂ low temperature plasma to improve dyeing properties of Rex rabbit fibers