Antimicrobial activity of wool yarn dyed with Rheum emodi L. (Indian Rhubarb)

Khan, Shafat Ahmad; Ahmad, Aijaz; Khan, Moazzam Hussain; Yusuf, Mohd; Shahid, Mohammad Hasan; Manzoor, Nikhat; Mohammad, Faqeer

doi:10.1016/j.dyepig.2012.04.010

Cited by 141 publications

(68 citation statements)

References 17 publications

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“…The resistance of alizarin and purpurin toward degradation treatment in silk dyeing was due to their dyeing mechanism. Being mordant dyes, alizarin and purpurin forms fiber-metal-dye chelated complex within the fiber by the metal compounds used in mordanting Khan et al, 2012;Samanta & Konar, 2011). Thus the aluminium and iron which were used in alum mordanting and iron mordanting, respectively, allow strong dye fixation by forming chelated structure .…”

Section: Before Treatmentmentioning

confidence: 99%

Thermal degradation of natural dyes and their analysis using HPLC-DAD-MS

Ahn

Zeng

et al. 2014

Fashion and Textiles

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Berberine, palmatine, alizarin, purpurin, indigotin, and indirubin which were the major coloring compounds of Phellodendron bark, madder, and indigo plant were thermally degraded in 100°C oven in liquid dye form and also in silk dyed with five of these pigments. A mixed dye solution of six coloring compounds was prepared in DMSO solution and was thermally degraded for up to 7 days. Silk were dyed using either a mixed dye solution of five dyes or individual dye solutions and each were degraded for 7 and 14 days, respectively, and the dye was extracted from the samples for the HPLC analysis. The concentration of coloring compounds in the degraded samples were analyzed by HPLC-DAD-MS and the color difference (ΔE) of the degraded silk was examined using a spectro-colorimeter. Alizarin and purpurin were more resistance to degradation than other coloring compounds both when in solution form and in silk dyeings. And such result was verified by the color difference measurement of the degraded silk dyed with individual dye solution. The resistance of alizarin and purpurin to thermal degradation was highly likely due to the fomation of fiber-metal-dye chelated complex by alum or iron mordanting before dyeing.

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Section: Before Treatmentmentioning

confidence: 99%

Thermal degradation of natural dyes and their analysis using HPLC-DAD-MS

Ahn

Zeng

et al. 2014

Fashion and Textiles

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“…A strong co-ordination tendency can enhance the interaction between the fibre and the dye, resulting in high K/S values. This was supported by Khan et al, (2012).…”

Section: Influence Of Dyeing Conditions On Colour Strength and Colourmentioning

confidence: 88%

Influence of Dyeing Conditions on Colour Strength and Colour Co-Ordinates of Silk Yarn Dyed with Acacia nilotica Pods

Jamadar¹,

Sannapapamma²,

Kasturiba³

2018

Int.J.Curr.Microbiol.App.Sci

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“…This low colour strength at higher concentration of mordants can be outlined that the formations of the coordination bonds between the macademia dye and cellulose with metal cations of mordant as the central ions [31]. Metal mordants especially d-block elements have coordination complex forming ability and therefore readily chelate with the dye molecules forming ternary complexes eventually finally leading to larger colour strength values [32,33]. The mordant activity sequence was found to be M1 > M3 > M2.…”

Section: Optimization Of Extraction Conditionsmentioning

confidence: 99%

Macadamia integrifolia: A New Source of Natural Dyes for Textile Colouration

Habib¹,

Pervez²,

Mahmud³

et al. 2017

Asian J. Chem.

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In this research, an attempt has been made to extract natural dye from Macadamia integrifolia, as a new source for cotton dyeing with good enough properties for potential commercial applications. Optimum extractions were observed with a sodium hydroxide as solvent at 60 °C, time 60 min and M:L was 1:20. The study of different factors effecting dyeability of cotton fabrics were acquired at following conditions: dye concentration 50 %, salt concentration 10 g/L, pH 8, 85 °C and 120 min. The colour strength (K/S) and fastness properties were found to be satisfactory in the post-mordant-processed fabric with the use of optimum mordant (M1 > M3 > M2) concentration of 3 %. Based on UV-visible spectra analysis, presence of lignin was confirmed on extract of aqueous Macadamia integrifolia. The chemical composition analysis was determined by Fourier transform infrared spectroscopy (FT-IR) and surface morphology of cotton fibers were investigated by scanning electron microscopy (SEM) for any changes on fiber. It is hoped that with analytical assay natural colourants can be tailored to access acrimonious functional ambit of synthetic dyes for the textile industries up to some extent, especially in case of the natural fibers colouration.

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Antimicrobial activity of wool yarn dyed with Rheum emodi L. (Indian Rhubarb)

Cited by 141 publications

References 17 publications

Thermal degradation of natural dyes and their analysis using HPLC-DAD-MS

Thermal degradation of natural dyes and their analysis using HPLC-DAD-MS

Influence of Dyeing Conditions on Colour Strength and Colour Co-Ordinates of Silk Yarn Dyed with Acacia nilotica Pods

Macadamia integrifolia: A New Source of Natural Dyes for Textile Colouration

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