아로니아 추출물에 의한 직물의 천연염색과염액의 Spectrum 분석
Analysis of naturally Dyed Textile Fabrics by using Aronia Extract
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초록
This study examined the dyeing characteristics and spectrum of cotton and silk by using dyeing solution extracted from aronia. The value L* which indicates the brightness of cotton regardless of mordant increases with increasing pH from pH 3.5 to pH 10.5. The color difference value(ΔE) of the cotton was generally high in pH 3.5 regardless of mordant existence. The silk showed the highest ΔE value in pH 3.5 dye solution as cotton did. On the other hand, the silk with mordant dyed showed the highest ΔE value in pH 7. Silk fabrics dyed with Aronia solution turns out red in pH 3.5, blue in pH 7 and yellow in pH 10.5. This is because of the amino acid, one of the silk ingredients, combines with a part of anthocyanin to show blue. As the result of the spectrum measurement, the maximum absorption wavelength of Aronia solution was increased in the order of pH 10.5, pH 3.5 and pH 7, regardless of extraction temperature and mordant. The measurement results of color fastness to washing and color fastness to light are generally low. Therefore, there is a need for further study to improve color fatness in the future.
Abstract
This study examined the dyeing characteristics and spectrum of cotton and silk by using dyeing solution extracted from aronia. The value L* which indicates the brightness of cotton regardless of mordant increases with increasing pH from pH 3.5 to pH 10.5. The color difference value(ΔE) of the cotton was generally high in pH 3.5 regardless of mordant existence. The silk showed the highest ΔE value in pH 3.5 dye solution as cotton did. On the other hand, the silk with mordant dyed showed the highest ΔE value in pH 7. Silk fabrics dyed with Aronia solution turns out red in pH 3.5, blue in pH 7 and yellow in pH 10.5. This is because of the amino acid, one of the silk ingredients, combines with a part of anthocyanin to show blue. As the result of the spectrum measurement, the maximum absorption wavelength of Aronia solution was increased in the order of pH 10.5, pH 3.5 and pH 7, regardless of extraction temperature and mordant. The measurement results of color fastness to washing and color fastness to light are generally low. Therefore, there is a need for further study to improve color fatness in the future.
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