Natural dyeing application of used coffee grounds as a potential resource

Nam, Changhyun; Xiang, Chunhui

doi:10.1080/17543266.2019.1640291

Cited by 15 publications

(2 citation statements)

References 28 publications

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“…Mordant types used in dyeing made with coffee grounds, which is a sustainable resource, make a difference according to the fabric types used. Iron was used for cotton and linen, alum for silk, and copper for rayon [1]. It has been observed that another parameter affecting dyeing is the type and the roasting rate of the coffee.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Blend, Mordant and Waste Ratio on Dyeing of Denim Products with Coffee Waste

Aslan¹,

ALPEREN²,

Cinperi³

et al. 2023

EJOSAT

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Natural dyestuffs, which took the place of synthetic dyestuffs in the past, have started to be used consciously again thanks to the increasing understanding of 'environmentally friendly textile'. These natural dyestuffs are mostly obtained from plants or food waste. Coffee is the most consumed nutrient in the world after water. Therefore, there is a lot of waste of coffee in nature and it contains pigments that give it its natural color. In this study, products with different fiber contents (100% cotton, 98% cotton 2% elastane, 80% cotton 20% recycled cotton) were dyed using coffee waste, and different mordant substances (aluminum sulfate, chitosan, quetemary ammonium compounds). It has been tried to reduce the amount of coffee waste used by dyeing with coffee wastes at different rates by weight (1/1, 2/1, 4/1, 8/1). Thus, it is aimed to provide less waste to the environment and to increase the color efficiency by making a more sustainable dyeing process. In addition, it is aimed to give a new direction to the denim sector by improving the rubbing and washing fastness values of dyed products. As a result of the studies, products with a product weight/coffee waste weight ratio of 8/1 were obtained with high crocking and washing fastnesses and without major losses in color tone.

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Section: Introductionmentioning

confidence: 99%

The Effect of Blend, Mordant and Waste Ratio on Dyeing of Denim Products with Coffee Waste

Aslan¹,

ALPEREN²,

Cinperi³

et al. 2023

EJOSAT

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“…Coffee belongs to Rubiacea family (Koh and Hong, 2019). It contains mostly alkaloids, quinolinic acid, nicotinic acid, tannic acid, pyrogallic acid and trigonelline, which impart anti-oxidant properties (Nam and Xiang, 2019). Its oil is also used in medicine as health-care and sunblock products (Herlina and Kurniati, 2020).…”

Section: Introductionmentioning

confidence: 99%

Sustainable exploration of coffee extracts (coffea arabica l.) for dyeing of microwave-treated bio-mordanted cotton fabric

Adeel

Rehman

Amin

et al. 2022

PRT

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Purpose This study aims to observe the coloring efficacy of coffee-based natural brown colorant for cotton dyeing under microwave (MW) treatment. Design/methodology/approach The colorant extracted in particular (neutral and acidic) media was stimulated by MW treatment up to 6 min. Dyeing variables were optimized and 2–10 g/100 mL of sustainable anchors (mordants) have been used to get colorfast shades. Findings It has been found that un-irradiated acidic extract (RE) containing 5% of table salt at 80 °C for 50 min has given high color yield onto MW-irradiated cotton fabric (RC = 2 min). The utilization of 2% of Fe, 10% of tannic acid and 10% of sodium potassium tartrate before bio-coloration, whereas 4% of Fe, 10% of tannic acid and 6% of sodium potassium tartrate after bio-coloration has given good color characteristics. In comparison the application of 6% of pomegranate and turmeric extracts before bio-coloration and 6% of pomegranate and 10% of turmeric extracts after bio-coloration have given good color characteristics. New bio-mordants can be added to get more new colorfast shades. Research limitations/implications There is no research limitation for this work. New bio-mordants can be added to get more new colorfast shades. Practical implications This work has practical application for artisans, textile industry and handicrafts. It is concluded that colorant from coffee beans can be possible alternative of synthetic brown dyes and inclusion of MW rays for extraction and plant molecules as shade developers can make process more green. Social implications Socially, it has good impact on eco-system and global community because the effluent load is not carcinogenic in nature. Originality/value The work is original and contains value-added product for textiles and other allied fields.

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