The impact of various surface modifications and chitosan bio-mordant on the dyeing of wool yarn with Phycocyanin microbial dye

Document Type : Original Article

Authors

1 Textile department- Yazd university

2 textile department,, yazd university

3 textile department, yazd university

Abstract

Today, with the growing environmental consciousness and focus on eco-friendly processes, natural dyes are attracting considerable attention. This investigation employed Phycocyanin, a microbial dye, to naturally dye wool fibers. Methods such as plasma under vacuum, UV radiation surface modifications, and the use of chitosan bio-mordant were employed to enhance the color properties of wool products. The study assessed surface modifications, washing, light and rubbing fastness, color strength, and antimicrobial properties of the samples. Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were used to examine the functional groups and morphology of the fibers. Findings revealed that the sample treated with UV radiation and potassium dichromate mordant achieved the highest color strength (8.69). Additionally, all dyed samples exhibited notable antimicrobial effectiveness.

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