Eco-dyeing and Functional Finishing of Cotton Fabric by Natural Dye Derived from Lotus Seedpod Waste with Chitosan-Assistance

Jin, Fangming; Chen, Meng; Wang, Yingfeng; Yang, Yi; Han, Lun; Wang, Shubo; Zhang, Guangzhi; Xu, Zhenzhen; Min, Jie

doi:10.1007/s12221-023-00158-z

Cited by 10 publications

(2 citation statements)

References 61 publications

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“…Likewise, the chitosan-modified-dyed silk acquired a superb UV protection factor. In one study, Fang et al ( 2023 ) stated that the natural dye was extracted from biomass lotus seedpod waste; the effects of temperature, time, pH, and a metal mordant on fabric dyeing performance were investigated; and it was then utilized for eco-dyeing and functional finishing of cotton fabric along with the bio-mordant chitosan. The chitosan pretreatment-dyed cotton fabric outperformed other fabrics in terms of UV protection factor (UPF value = 63.4) and E. coli and S. aureus inhibition (99.86 and 99.99% initial inhibition, 99.08 and 98.21% after ten cycles of washing).…”

Section: Mordant Agentsmentioning

confidence: 99%

Bio-mordants: a review

Benli

2024

Environ Sci Pollut Res

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Due to the increasing pressure on environmentally friendly approaches and sustainable production processes, the textile dyeing industry has focused on natural colorants. Thus, the use of bio-mordants, which are biological materials, has become widespread as an alternative to metal salts, most of which are non-ecological, used in the application processes of natural colorants. In natural dyeing, dyers want to use mordant substances in the dyeing processes in order to both expand the color spectrum and improve the fastness properties. Conventional metal salts used in natural dyeing are made up of metallic ions, which, when released into the environment as wastewater effluent at the end of the dyeing process, cause major damage to the ecosystem. Many researchers have thought about using mordants derived from natural sources to address the environmental problem. This article is a review of the investigation of natural mordants used instead of metallic mordants in the process of coloring various textile materials with natural dyestuff sources. It has been determined that many substances, most of them herbal materials, are used as mordants. In this review, mordants, except for conventional metal salts, are examined under three main groups for a better understanding. These groups are as follows: (i) natural or bio-mordants, (ii) oil mordants, and (iii) new-generation and non-vegetable-based mordants. Here, researchers will find an overview of the most recent developments in green mordants as well as application techniques for a variety of mordants.

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Section: Mordant Agentsmentioning

confidence: 99%

Bio-mordants: a review

Benli

2024

Environ Sci Pollut Res

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“…Researchers worldwide strive to introduce agricultural residual sources that abundantly provide natural dyes to manage the growing demand for these dyes and mitigate potential threats [13]. Such attempts include dye extracted from Java Plum [11], Amur Cork Tree Bark [14], Bougainvillea flowers [15], Lotus Seedpod Waste [16], Pomegranate Peel [17], Red Tea [18], etc.…”

Section: Introductionmentioning

confidence: 99%

Dragon Fruit (Hylocereus polyrhizus): A Green Colorant for Cotton Fabric

Mahmud,

Raihan,

Shakhik

et al. 2023

Colorants

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The textile industry has been exploring sustainable chemicals and natural alternatives to replace harmful and carcinogenic substances used in different stages of textile production for dyeing textiles. Natural dyes are gaining popularity, as they are environmentally friendly and less harmful. Betacyanin, a type of pigment obtained from red pitahaya, commonly known as red dragon fruit (Hylocereus polyrhizus), has peels that are available as agricultural waste and can be used to meet the demand for natural dye production. This study aimed to explore and utilize dragon fruit’s peel as a natural colorant for dyeing 100% cotton knit fabric (scoured and bleached single jersey plain knit) of 170 g/m2, which could transform a low-value material into a valuable product. However, cotton’s phenolic nature and oxidation process result in negative charges on its surface, making natural dyeing challenging. Cationization with cationic agents (ForCat NCH, a mixture of cationic polyamine and 1,3,dichlori-2-propanol) and mordanting (potassium alum or potassium aluminum sulfate) were carried to improve dye exhaustion and enhance colorfastness properties. Spectrophotometer 800 was used to measure color strength (K/S), and several fastness tests, including wash, perspiration, and rubbing were conducted to assess the final product’s performance. The process parameters, such as temperatures, times, pH levels, and dye concentrations were varied to understand better the optimum conditions.

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