Metal mordants and biomordants

İşmal, Özlenen Erdem; Yıldırım, Leyla Tatar

doi:10.1016/b978-0-08-102491-1.00003-4

Cited by 54 publications

(30 citation statements)

References 43 publications

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“…Large-scale usage would lead to serious environmental problems [9]. In the use of these metal salts as mordants, only a small amount is fixed in the textiles and the rest is discharged as effluent, leading to contamination of terrestrial and aquatic resources [3,18,19].…”

Section: Introductionmentioning

confidence: 99%

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Biomordants and new alternatives to the sustainable natural fiber dyeings

et al. 2019

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The textile industry is considered a major polluter of the environment using chemical substances such as color fixatives and the production of toxic waste. There is a growing demand in the fashion market for products that are less aggressive to the environment and use of environmentally friendly processes. Considering the use of natural dyes as an alternative to synthetic dyes, and the use of natural mordants as alternatives to metal mordants, this study investigated the use of Acacia mearnsii sawdust as a biomordant for color fixation. Dyeing and color fixing tests were carried out on banana fiber, and the natural dyes of Hibiscus sabdariffa, Allium cepa and Curcuma longa. The results show the efficacy of Acacia as a biomordant for the tested dyes, presenting intense color and fiber softness. Thus, it is intended to contribute with new alternatives to natural dyeing through materials and sustainable processing procedures applied to natural fibers.

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Section: Introductionmentioning

confidence: 99%

“…Biomordants are reported as sustainable and ecologically correct alternatives to metal mordants, providing satisfactory dyeing and solidity properties [19]. Biomordant sources are plants with high tannin content [20] or hyperaccumulative metal plants [21].…”

Section: Introductionmentioning

confidence: 99%

Biomordants and new alternatives to the sustainable natural fiber dyeings

et al. 2019

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“…4. This additional bonding along with the addition of conjugation by flavonoids of bio-mordants has added valorization in the tinting of dyed fabric (Hosseinnezhad et al 2021;İşmal and Yıldırım 2019). However, the mode of application (pre-, post-, and meta-mordants) has been found to vary in giving darkness or brightness of shade as well as reddish-yellow tone.…”

Section: Resultsmentioning

confidence: 99%

Eco-friendly approach towards isolation of colorant from Esfand for bio-mordanted silk dyeing

Adeel

Habib

Fatima

et al. 2021

Environ Sci Pollut Res

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Sustainability in all applied fields particularly in textiles is to protect our globe, environment, and community, where green dyed products are playing their role. For the current study, Esfand (Peganum harmala) has been explored using a green isolation tool, i.e., ultrasonic (U.S.) rays, and applied onto fabric. Different dyeing parameters have been explored statistically through response surface methodology by employing temperature (50-80°C), time (25-65 min), extract volume (15-55 mL), salt (1-5 g/100 mL), and dye bath pH (4-7) through series of experiments. For developing new shades, green mordants such as elaichi, neem, turmeric, and zeera have been utilized. It has been found that exposure of 35 mL extract of 7 pH containing 3 g/100 mL of salt as exhausting agent to U.S. rays for 30 min for the dyeing of silk at 70°C for 45 min has given maximum color strength with reddish-yellow shades. Color characteristics obtained in the CIE Lab system reveal that 5% of turmeric as meta bio-mordant has given good quality reddish-yellow shades. It is found that U.S. rays have not only good potential to isolate colorant followed by dyeing of silk under reduced condition but also the application of bio-mordants have made the process more greener, sustainable, and cleaner.

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“…Natural dyes are classified into two: substantive dyes which are dyes that do not require mordants to fix them to textile fibers and adjective/mordant dyes which are dyes that require mordants to fix them on the fabric (İşmal and Yıldırım, 2019). Most natural dyes are adjective dyes due to their poor fastness properties, and hence require assisting chemicals to boost their absorption and fixation into the fabric (Ding and Freeman, 2017).…”

Section: Introductionmentioning

confidence: 99%

Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method

Manyim

Kiprop

Mwasiagi

et al. 2021

RJTA

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Purpose The majority of the synthetic dyes have been found to be non-biodegradable, toxic and carcinogenic. As a result, there has been a growing trend toward the use of natural dyes as alternates to synthetic dyes. This shift calls for more research to come up with more sources of natural dyes to satisfy their increasing demand. Euclea divinorum plant has been used traditionally as a source of dye, however, its textile dyeing properties have not been studied. This study aims to determine the textile dyeing properties of E. divinorum extract. Design/methodology/approach Optimization of dyeing conditions of Euclea divinorum natural dye extract on the cotton fabric was done using response surface methodology (RSM). The combined effects of examined dyeing conditions on the relative color strength (K/S) were studied using a central composite experimental design. Analysis of variance (ANOVA) was used to determine the significance of the statistical model generated for the study. Mordanting effects were measured using standard ISO wash, rub and lightfastness tests. Findings The optimum dyeing conditions were found to be 68 min, pH 3.3 and 82°C with color strength 0.609. Temperature and pH showed some interaction effects during the dyeing experiments. The predicted optimum K/S value was validated experimentally using the optimum conditions and was found to be in agreement with the experimental values. All the metallic mordants used enhanced the color strength and provided a variety of brown shades, therefore, a suitable alternative for the toxic synthetic dyes. Originality/value Optimization of dyeing conditions of Euclea divinorum dye on cotton using RSM and mordanting at optimal conditions has not been done elsewhere.

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Metal mordants and biomordants

Cited by 54 publications

References 43 publications

Biomordants and new alternatives to the sustainable natural fiber dyeings

Biomordants and new alternatives to the sustainable natural fiber dyeings

Eco-friendly approach towards isolation of colorant from Esfand for bio-mordanted silk dyeing

Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method

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