Dyeing of textiles with natural dyes

Abstract

In recent years there has been a great interest in the application of natural dyes in dyeing textiles due to their biodegradability and high compatibility with the environment. According to the experts, there is a great potential for using natural dyes to the extent that in some areas they can very easily replace synthetic ones. This paper reports the studies available on the characterization, classification and analysis of natural dyes; extraction of dyes from onion's outer shell and effects of different mordants and mordanting methods on the color shade. From an environmental point of view, replacing synthetic dyes with natural ones is not only a strategy to reduce risk and pollutants, but also an opportunity for new markets and jobs.

Natural Dyeing of Buldan Handwoven Fabrics With Plant Shell Extracts: A Step Towards Sustainable Textile

“…The similar situation was observed among the cotton-viscose blended woven fabrics where the change assessment grades of the samples dyed with acorn and onion extract were found lower than the others for washing and water fastness evaluation (Table 4). This may be an expected result since onion's outer shell (Allium cepa) belongs to the Lilliaaceae family and these dyes are known as 0,00 pelargonidin which work like acid dyes that can dye protein fibres much better than cellulosic fibres such as cotton and its blends [23].…”

“…The advantage of natural dyes may be sorted as: Production of soft, lustrous and rare colours, extraction from renewable sources, biodegradability, ease of disposal, reduced carbon emissions, lack of environmental threats. However, beside all these advantages, less availability, low color yield, inadequate fixation, necessity of mordants may be listed as the limitations of natural dyes [17][18][19][20][21][22][23][24]. The shells of the natural dyes utilized within our study can also be thrown away to the nature without giving any damage to the environment.…”

The Color Fastness and Quality of Eco-Printed Leather with Different Types of Mordant in Natural Dyes from Mangrove Extract (Rhizophora mucronata)

“…According to Jordeva et al (2020), mordant using Al 2 (SO 4 ) 3 will form a coordination complex that has an affinity between leather fibers and natural dye pigment. Aluminum salts (Al 2 (SO 4 ) 3 ) attached to the surface of the leather will bind the organic dye/pigment in the natural dye to bind to the fiber and create a link between the dye molecules and the fiber by forming a coordination complex.…”

Phenolic Compounds, Dyeing Potential, and Cytotoxic Activity ofAlkanna orientalisL. Boiss (Boraginaceae)

“…14 It has the advantages of easy availability, low price, no effect on the hue, and being safe. 15,16 The genus Alkanna that belongs to Boraginaceae family is useful for the preparation of dyestuffs. Thirty-four species are found in Turkey, and 76% of them are endemic to Turkey.…”