| 홍화의 홍색소로 염색한 셀룰로오스계 직물의 광변퇴색 고찰 |
| 신윤숙, 최승연 |
| 전남대학교 의류학과.생활과학연구소, 전남대학교 박물관 |
| A Study on Photofading of Cellulose Fabrics Dyed with Safflower Red Colorants |
| Youn-Sook Shin, Choi, Seung-Youn |
| Department of Clothing & Textiles.Human Ecology Research Institute, Chonnam National University, Chonnam National University Museum |
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| ABSTRACT |
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The purpose of this study was to increase uv-cut ability of cotton, ramie, and rayon fabrics dyed with safflower red colorants. For this purpose, samples treated with uv-cut agent and tannic acid were compared with the untreated samples after ultraviolet(uv)-light exposure in terms of K/S value, color changes(ΔE), SEM, and tensile strength retention. K/S value rapidly decreased with increasing exposure time, but K/S value of the samples treated with both uv-cut agent and tannic acid decreased less than that of untreated samples. As increasing exposure time, L2 and b2 increased, a2 decreased, and so ΔE increased, indicating less red character and more yellow character in color. This leads to change hue, value and chroma value. But color change of samples treated with both uv-cut agent and tannic acid was less than that of untreated samples. SEM pictures showed a severe degradation by uv exposure in all samples. Tensile strength slowly decreased for 21 days. And after this point, the decreased proceeded more rapidly. Tensile strength retention of the samples treated with uv-cut agent and tannic acid was higher than that of untreated samples. |
| Keywords:
홍화 홍색소, Safflower red colorants, 셀룰로오스 직물, Cellulose fabrics, 자외선 차단제, UV-cut agent, 탄닌산, Tannic acid, 광변퇴색, Photofading |
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