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Journal ArticleDOI: 10.1080/15440478.2019.1623742

Dyeing of Cochineal Natural Dye on Cotton Fabrics Treated with Oxidant and Chitosan

04 Mar 2021-Journal of Natural Fibers (Taylor & Francis)-Vol. 18, Iss: 3, pp 317-329
Abstract: Cotton fabrics were modified through an oxidation of the fabric with hydrogen peroxide followed by chitosan to improve their dyeability toward cochineal natural dye. Comprehensive studies were cond...

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Topics: Dyeing (61%), Cochineal (56%), Natural dye (55%)

6 results found

Journal ArticleDOI: 10.1007/S12221-020-9153-Z
Abstract: The objective of this research is to optimize the dyeing parameters for cotton fabric with natural dyestuff extracted from Dactylopius coccus. In order to obtain purple hue, the influence of dyeing process conditions i.e. dye bath pH, concentration of dyestuff, and the addition of electrolyte has been studied. Additionally, potassium aluminium sulfate dodecahydrate and iron (II) sulfate heptahydrate were used as mordants on cotton fabrics in order to obtain coloration of specific purple hue. Colorimetric data and fastness properties of the dyed samples have been analyzed. Results indicate that the dyeing parameters as well as pre-treatment has a significant influence on the obtained purple shades and fastness properties.

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Topics: Dyeing (62%), Mordant (54%)

6 Citations

Journal ArticleDOI: 10.1016/J.CARBPOL.2020.117157
Yuxia Wang1, Nan Zhang1, Qiang Wang1, Yuanyuan Yu1  +1 moreInstitutions (1)
Abstract: Chitosan is considered as a green additive with broad application prospects due to its advantages like biodegradability and antibacterial ability. Herein, we proposed an effective chitosan grafting approach via "one-enzyme double catalysis" strategy which aimed at functionalizing wool fibers to achieve bidirectionally multiple covalent crosslinking between chitosan and wool by laccase/2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) mediated oxidization. The mechanism was studied using models of wool and chitosan in terms of UV, FTIR, GPC and MALDI-TOF MS. Meanwhile, the structure and morphology of wool fiber grafted with chitosan were characterized by ATR-FTIR and SEM. Compared with untreated wool, this efficient method can significantly improve the dimensional stability to felting (2.53 %), wettability and dyeability of wool fabric, and can also compensate for the strength loss caused by the pretreatment. The present work provides a useful path for the enzymatic modification of keratin-containing fibers like wool using chitosan and other natural biopolymers with similar structure.

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Topics: Chitosan (52%), Wool (51%)

5 Citations

Journal ArticleDOI: 10.1021/ACSABM.1C00078
Jianhui Li1, Xiao Tian1, Tao Hua1, Jimin Fu1  +3 moreInstitutions (1)
17 May 2021-
Abstract: In recent years, the textile industry has been seeking to develop innovative products. It is a good choice to organically combine materials with superior functional characteristics and commercial t...

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2 Citations

Journal ArticleDOI: 10.1016/J.JCLEPRO.2021.126920
Kim Phan1, Katleen Raes1, Veronique Van Speybroeck1, Martijn Roosen1  +2 moreInstitutions (1)
Abstract: Fruit and vegetables contain molecules that have particular colors, which can potentially be an environmentally attractive substitute for their synthetic counterparts in (non-)food applications. The most sustainable source for such natural colorants would be by the valorization of by-products from the fruit and vegetable industries, but qualitative and quantitative characteristics of food by-products for this purpose remain scarce. Natural dyes also show mediocre stability and affinity toward textile fibers, which questions their potential feasibility for application and level of sustainability to overcome these issues. This review describes three dye classes (i.e., anthocyanins, quinones, and carotenoids) along with their occurrence, mass, and concentration in by-products that are generated from agricultural losses as well as the fruit and vegetable processing industries. To tackle the shortcomings of natural dyes on fibers, several application techniques were collected from the literature. A discussion on techno-economic potential and environmental sustainability is included. The latter is done by including a life cycle assessment (LCA) to investigate the environmental impact of extracting anthocyanins, quinones, and carotenoids from fruit and vegetable processing by-products and their subsequent application to the dyeing process. The mapping of by-products for each natural dye class illustrates the vast availability of agro-food residues (>0.1 Mt annually in the EU-28) with a natural dye content of up to 56 kg/t DW for anthocyanins, 18 kg/t DW for quinones, and 593 kg/t DW for carotenoids. Metallic mordants are mostly favored for improving the fixation of natural dyes but entail potential environmental issues. Greener approaches, such as biomordants and enzymes, still show room for improvement, chemical modification methods might also guarantee dye fixation, though questionable in environmental sustainability. The different valorization scenarios of anthocyanins, quinones, and carotenoids from food waste, analyzed with LCA, showed the environmental competitiveness of these natural dyes, applied as a crude extract, compared to synthetic dyes. The valorization routes design shows that agricultural losses and food processing waste streams are adequate sources of natural dyes, especially to be applied in niche scale applications.

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Topics: Dyeing (51%), Natural dye (50%)

1 Citations


27 results found

Journal ArticleDOI: 10.1016/J.JCLEPRO.2013.03.031
Abstract: A vast array of colorants obtained from natural sources such as plants, insects/animals and microbes have been scrutinized in recent past for their use in different kinds of applications. Research into new natural dyes sources along with eco-friendly, robust and cost-effective technologies for their processing and application have greatly aided in widening the scope of natural dyes in various traditional and advanced application disciplines. This review encompasses a summary of research performed in last 15 years (1998–2013) in different arenas of applications of natural dyes, with specific reference to technological development in natural textile dyeing and use of natural dyes in functional finishing of textiles, food coloration and dye-sensitized solar cells. In addition, some newly discovered applications of natural dyes have also been discussed.

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Topics: Natural dye (50%)

538 Citations

Journal ArticleDOI: 10.1016/S0959-6526(02)00077-X
Abstract: Plant materials which are available from farming regions in the moderate Austrian climate were investigated to serve as sources for natural dyes in textile dyeing operations. The extraction of the dye components from the plant materials was performed with boiling water without addition of chemicals or solvents. Based upon a rigorous selection of possible plant sources, a selection of natural dyestuffs applicable in a one-bath dyeing step was established. A broad variation in shade and color depth can be achieved by applying mixtures of natural dyestuffs in various combinations of iron- and alum-mordants. More than 60% of tested dyeings achieved acceptable fastness properties. On the basis of the developed natural dyestuff-based dyeing procedures, a comparison was made between the effluents from processes based upon them and those based upon the current ‘state-of-the-art’ techniques utilizing synthetic dyes. The comparison revealed that a lowering of the chemical load released with waste water can be expected by shifting to the plant-based dyes.

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Topics: Dyeing (62%)

235 Citations

Open accessJournal ArticleDOI: 10.1007/S13659-017-0119-9
Mohd Yusuf1, Mohd Shabbir2, Faqeer Mohammad2Institutions (2)
Abstract: With the public’s mature demand in recent times pressurized the textile industry for use of natural colorants, without any harmful effects on environment and aquatic ecosystem, and with more developed functionalities simultaneously. Advanced developments for the natural bio-resources and their sustainable use for multifunctional clothing are gaining pace now. Present review highlights historical overview of natural colorants, classification and predominantly processing of colorants from sources, application on textiles surfaces with the functionalities provided by them. Chemistry of natural colorants on textiles also discussed with relevance to adsorption isotherms and kinetic models for dyeing of textiles.

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188 Citations

Journal ArticleDOI: 10.1016/J.JCLEPRO.2006.05.004
Padma S. Vankar1, Rakhi Shanker1, Avani Verma1Institutions (1)
Abstract: Two step ultrasonic dyeing of cotton and silk fabrics with natural dyes, Terminalia arjuna , Punica granatum , and Rheum emodi have been developed in which an enzyme is complexed with tannic acid first as a pretreatment. This was found to be comparable with one step simultaneous dyeing. The effectiveness of three enzymes—protease-amylase, diasterase and lipase was determined. The enzymatic treatment gave cotton and silk fabrics rapid dye adsorption kinetics and total higher adsorption than untreated samples for all the three dyes. The CIELab values also showed improvement by enzymatic treatment. The tannic acid-enzyme-dye combination method offers an environmentally benign alternative, ‘ soft chemistry ’ to the metal mordanted natural dyeing.

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Topics: Dyeing (65%), Mordant (57%)

169 Citations

Journal ArticleDOI: 10.1016/J.MOLLIQ.2006.08.010
Akihiro Wakisaka1, Kazuo MatsuuraInstitutions (1)
Abstract: The microscopic structures in ethanol–water binary mixtures were examined by analyzing the mass spectra of clusters generated through fragmentation of liquid droplets. From the effects of temperature and mixing ratios on the cluster structures, we have demonstrated that the ethanol–water binary mixtures have microscopic phase separation at the cluster level in wide mixing ratios: 10 vol.%

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109 Citations

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