Dyeing of Wool and Silk by Eucalyptus Leaves Extract

Mongkholrattanasit, Rattanaphol; Kryštůfek, Jiří; Wiener, Jakub

doi:10.1080/15440470903354695

Cited by 23 publications

(14 citation statements)

References 3 publications

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“…Currently, the trees are debarked in the field, and the leaves and bark are left there as natural compost. There are several previous reports of the use of colour extracted from species of eucalyptus in natural dyeing , and it is used to a certain extent in craft‐based natural dyeing processes.…”

Section: Resultsmentioning

confidence: 99%

An approach to sustainable coloration of lyocell fabrics by screen printing using extracts of leaves and bark from eucalyptus

Ellams

Christie

Robertson

2013

Coloration Technology

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This paper presents an initial study from a more extensive programme of research at the design/technology interface that is focused on the use of design methodology as a means to lower the environmental impact of fashion clothing. The leaves and bark that are byproducts of the responsibly farmed eucalyptus used in the manufacture of lyocell fibres were extracted with water to provide a source of natural colour. Lyocell fabric, which required minimal preparation, was screen printed with an aqueous paste containing only the extracted colour and a natural thickener to provide attractive golden-yellow prints. The printed fabrics demonstrated surprisingly good fastness towards light, washing and rubbing. A mordanting pretreatment of the lyocell with alum modified the colour of the naturally coloured prints to become stronger and duller, but provided no advantage in terms of technical performance. The outcome presents a potentially useful model for the development of sustainably coloured fashion textile products.

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Section: Resultsmentioning

confidence: 99%

An approach to sustainable coloration of lyocell fabrics by screen printing using extracts of leaves and bark from eucalyptus

Ellams

Christie

Robertson

2013

Coloration Technology

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“…The changes in colour (lightness, brightness, and hue) vs light fastness grades in dyeings mordanted with aluminium (), tin (), iron (), chromium (), and copper () salts …”

Section: Colour Changes and Light Fastness Improvementsmentioning

confidence: 99%

Metal mordanting in dyeing with natural colourants

2016

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Metal mordanting, or the application of metal salts, is a common method of improving the light fastness in dyeing with natural colourants. This review presents the results from a survey of the literature on metal mordanting to assess what levels of correlation exist between mordant‐induced effects (changes in colour and colour depth) and the changes in light fastness, what is known about the mechanisms of mordant‐induced improvements of light fastness, and how the salt levels used in coloration processes compare with the limits on metal levels in wastewater and on the dyed substrates. No strong interrelationships are found between the mordant‐induced effects and light fastness improvements. Knowledge about mechanisms of mordant effect on light fastness appears, in large part, to be derived from empirical correlations. However, as light fastness is affected by a multitude of factors, the correlations do not always hold true. It is found that residual metal contents in spent dye/mordanting liquors are generally not reported. However, with rough calculations, it is estimated that, with even the lowest reported salt concentrations, the metal contents in spent liquors exceed environmental release limits. The metal contents on dyed substrates are also not generally reported, but similar estimations show that the contents of heavy metal on dyed substrates (when copper and chromium salts are used as mordants) also exceed limits. On the basis of these observations, the authors make suggestions for elements to be included in investigations on furthering the use of natural colourants in textile dyeing.

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“…This technique has been investigated in regards to natural dyes (Agarwal and Patel 2002;Mongkholrattanasit et al 2009;Mongkholrattanasit et al 2010;Mongkholrattanasit et al 2011aMongkholrattanasit et al , 2011bRatnapandian et al 2012). The padding technologies are particularly advantageous to dyeing with low-affinity products because the dye's affinity to fiber through padding is unnecessary (in the dye deposition phase on the fabric) (Mongkholrattanasit et al 2009). The dye bath is padded by cloth and is mechanically applied by rapidly passing through the small padding trough; it is then intensively and immediately squeezed between expression rollers.…”

Section: Introductionmentioning

confidence: 99%

“…The process of padding is continuous and very rapid. Whether the total procedure is continuous or semi-continuous depends on the arrangement of the following dye fixation (Mongkholrattanasit et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Eco-Dyeing of Silk Fabric withGarcinia Dulcis(Roxb.) Kurz Bark as a Source of Natural Dye by using The Padding Technique

Mongkholrattanasit

Saiwan

Rungruangkitkrai

et al. 2015

Journal of Natural Fibers

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Silk fabrics were put through a process of dyeing with natural colorants extracted and used from the bark of the Garcinia dulcis (Roxb.) Kurz. Two padding techniques, pad-batch and pad-dry, were used under different study conditions. The effects of mordant agents used on the fabrics and the natural colorant in the dyeing process, color values, color strength, and the fastness properties of silk fabric were investigated and the results recorded in the following study. The results showed that color values can be changed using various metallic salts as mordants. The fastness properties ranged from fair to very good, while perspiration and light fastness was poor to fair.

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Dyeing of Wool and Silk by Eucalyptus Leaves Extract

Cited by 23 publications

References 3 publications

An approach to sustainable coloration of lyocell fabrics by screen printing using extracts of leaves and bark from eucalyptus

An approach to sustainable coloration of lyocell fabrics by screen printing using extracts of leaves and bark from eucalyptus

Metal mordanting in dyeing with natural colourants

Eco-Dyeing of Silk Fabric withGarcinia Dulcis(Roxb.) Kurz Bark as a Source of Natural Dye by using The Padding Technique

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