가자열매 추출물을 이용한 단백질 섬유의 염색과 항균효과
Dyeing Property and Antimicrobial activity of Protein Fiber Using Terminalia chebula Retzius Extract
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The purpose of this study was to investigate the dyeing properties and anti-microbial ability of silk and woolfabrics dyed with Terminalia chebula Retzius(TCR) extract using two extraction solvent, hot water and methanol. Dyeingproperties of fabrics were studied by investigating the characteristics of colorant, changes in dye uptake under differentdyeing conditions, and by investigating color change when mordants were applied. Also, color fastness, and antimicrobialactivity of dyed fabrics were estimated. Regardless of extraction solvent type, colorant showed maximum absorptionwavelength at 280 nm and 578 nm, which implied that tannin was the major pigment component of TCR. Also, throughFT-IR spectrum result, it was confirmed that tannin of TCR methanol extract was hydrolysable tannin. But for the hotwater extract, it was only assumed that its tannin was condenced tannin. Fabric dyed with hot water solvent extractshowed higher dye uptake than fabric dyed with methanol solvent extract, dye uptake increasing by higher concentrationof the dye, longer dyeing time and higher dyeing temperature. And the absorption curve between TCR extract and proteinfiber was shaped in the form of Langmuir adsorption isotherm. Fabric dyed without mordant was yellow in color, and whendyed with mordant, fabric showed various colors depending on mordant types except Sn. Color fastness to washing wasgenerally fine and color fastness to light was moderate. But color fastness to rubbing and dry cleaning was outstanding. Lastly, dyed fabrics showed very good antimicrobial activity of 99.9% against Staphylococcus aureus and Kiebsiella pneumoniae.
Abstract
The purpose of this study was to investigate the dyeing properties and anti-microbial ability of silk and woolfabrics dyed with Terminalia chebula Retzius(TCR) extract using two extraction solvent, hot water and methanol. Dyeingproperties of fabrics were studied by investigating the characteristics of colorant, changes in dye uptake under differentdyeing conditions, and by investigating color change when mordants were applied. Also, color fastness, and antimicrobialactivity of dyed fabrics were estimated. Regardless of extraction solvent type, colorant showed maximum absorptionwavelength at 280 nm and 578 nm, which implied that tannin was the major pigment component of TCR. Also, throughFT-IR spectrum result, it was confirmed that tannin of TCR methanol extract was hydrolysable tannin. But for the hotwater extract, it was only assumed that its tannin was condenced tannin. Fabric dyed with hot water solvent extractshowed higher dye uptake than fabric dyed with methanol solvent extract, dye uptake increasing by higher concentrationof the dye, longer dyeing time and higher dyeing temperature. And the absorption curve between TCR extract and proteinfiber was shaped in the form of Langmuir adsorption isotherm. Fabric dyed without mordant was yellow in color, and whendyed with mordant, fabric showed various colors depending on mordant types except Sn. Color fastness to washing wasgenerally fine and color fastness to light was moderate. But color fastness to rubbing and dry cleaning was outstanding. Lastly, dyed fabrics showed very good antimicrobial activity of 99.9% against Staphylococcus aureus and Kiebsiella pneumoniae.
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