Antimicrobial Activity of Wool Fabric Dyed with Natural Dyes

Ali, N.F.; Mohamedy, R.S.R. El.; Khatib, E.M. El

doi:10.1108/rjta-15-03-2011-b001

Cited by 32 publications

(16 citation statements)

References 9 publications

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“…Chitosan molecules in bacteria surrounds might complex metals and blockage some essential nutrients to flow, contributing to cell death [18][19][20].The positive charge on the N atom of, chitosan below pH 5.0 is more soluble and has a better antimicrobial activity by interfering with the negatively charged residues of macromolecules exposed on the fungal cell surface, and thereby changes the permeability of the plasma membrane.. It is found that the pretreatment with nanochitosan, effectively enhanced the antimicrobial activity due to large effective surface area [21][22][23][24].…”

Section: Surface Morphologymentioning

confidence: 99%

Improvement in Properties of Wool fibers pretreated with chitosan and nano chitosan and dyed with saffron natural dye.

2019

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W OOL fibers pretreated with chitosan and nano-chitosan and dyed with saffron red and yellow mixture as natural dye by using microwave heating method. The effect of chitosan and nano chitosan concentrations on color strength (K/S) was measured. The results indicated that, wool fibers pretreated with chitosan and nano chitosan recorded higher color strength than the untreated fibers. Fastness properties and the color yield of the dye on wool fibers were evaluated. The results indicated that color fastness to rubbing, washing and perspiration of all dyed wool fibers are excellent to good. The morphologies structure of the untreated and pretreated wool fibers were examined by scanning electron microscopy (SEM). The untreated wool fibers have a rough surface. The pretreated wool fibers were swelling compared to the untreated fibers. The diameter of the fibers increased and has smooth and even surfaces. The covering of the surface by bulk chitosan or nano-chitosan particles leads to the improvement in tensile strength and elongation of pretreated wool fibers. The antimicrobial activity with some species of bacteria and fungi were tested. The reduction percent for treated fibers were higher than the untreated fibers it reaches to 87% for Aspergillus Niger. The results obtained indicated that, the reduction percent of bacteria and fungi for fibers treated with nano chitosan was higher than chitosan it gave values from 75-87%

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Section: Surface Morphologymentioning

confidence: 99%

Improvement in Properties of Wool fibers pretreated with chitosan and nano chitosan and dyed with saffron natural dye.

2019

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“…This dye is being used extensively in dyeing of textile materials. Pharmacological studies have demonstrated that catechu is used in traditional medicines, show antiinflammatory and anticancer activities [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Application of Acacia Catechu Natural Dye on Banana Fiber

Singh¹

2020

EOIJ

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The use of natural dyes on textiles has become a matter of importance because of the increased environmental awareness to avoid hazardous, non-biodegradable synthetic dyes (soluble and Non water soluble) and synthetic chemicals. Pre-mordanting, and post-mordanting of 10%, 30% and 50% concentration of mordants carried out using alum, stannous chloride and ferrous shulphate. Results were achieved for dyeing at 90°C for 60 min at 10%, 30% and 50% concentration of the dye on the weight of fabric using pre-and post-mordant dyeing techniques Treated fiber showed a substantial increase in colour depth (K/S) and adequate wash, light and rubbing fastness properties without and with mordanted and dyed banana fiber.

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“…But now a day's considerable research work is started throughout the world on the application of natural dyes [9]. Added to this natural dyes are gaining popularity as UV protective and antimicrobial clothing dyes [10]. family Fabaceae.…”

Section: Introductionmentioning

confidence: 99%

Phytochemical Characterization of Natural Dye Extracted from Senna siamea Pods

Patil¹,

Kurlapkar²,

Gaikwad³

2020

OALib

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Withdrawal type (multiple responses allowed):  Unreliable findings  Lab error  Inconsistent data  Analytical error  Biased interpretation Other:  Irreproducible results  Failure to disclose a major competing interest likely to influence interpretations or recommendations  Unethical research  Fraud  Data fabrication  Fake publication  Other:  Plagiarism  Self plagiarism  Overlap  Redundant publication *  Copyright infringement  Other legal concern:  Editorial reasons  Handling error  Unreliable review(s)  Decision error  Other: X Other: Authors requested withdrawal. Results of publication (only one response allowed):  are still valid. X were found to be overall invalid.

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Antimicrobial Activity of Wool Fabric Dyed with Natural Dyes

Cited by 32 publications

References 9 publications

Improvement in Properties of Wool fibers pretreated with chitosan and nano chitosan and dyed with saffron natural dye.

Improvement in Properties of Wool fibers pretreated with chitosan and nano chitosan and dyed with saffron natural dye.

Application of Acacia Catechu Natural Dye on Banana Fiber

Phytochemical Characterization of Natural Dye Extracted from Senna siamea Pods

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