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⵵/ȣ 1995 / ȣ: V.7,no.3,Sept
1() źó (III) - źѰ ź
2(Ÿ) A Study on the Tannin Treatment of Silk Fabrics(III) - Comparion Condensed Tannin with Hydrlyzable Tannin -
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/ 60 ~ 67 : 8
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ʷ This study was made to investigate the effect of silk fabrics treated with mimosa and tannic acid-weighting effect, surface color according to temprature, treatment time, concentration, pH. The results were as follows ; 1. The wavelength of maximum absorption of mimosa and tannic acid solution appeared at 278.5nm and 275.0nm, respectively. By the irradiation, spectra at wavelength of maximum absorption of mimosa solution disappeared, but those of tannic acid solution decreased after 48hr irradiation. 2. The tannin weighting increased with the increase of concentration, treatment temperature at 8, acidic condition. In case of tannic acid, it was higher than mimosa. 3. Surface color of silk fabric with mimosa changed from 2.8YR to 5.8YR acc-ording to the increase o( tannin concentration but in case of tannic acid itchanged from 4.2Y to 3.9Y. It was more changed acidic or alkaline conditionthan origine solution.
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