Journal of the Korean Home Economics Association 2008;46(9):1-6.
홍화 염색 나일론 직물의 자외선에 의한 특성 변화 -색상, 강도 및 표면 특성 변화를 중심으로-
신윤숙, 최승연
전남대학교 의류학과.생활과학연구소, 전남대학교 박물관
A Study on the Changes in the Property of Nylon Fabrics Dyed with Safflower Under Ultraviolet-Light(UV) - Focused on the Changes in Color, Strength, and Surface -
Youn-Sook Shin, Choi, Seung-Youn
Department of Clothing & Textiles.Human Ecology Research Institute, Chonnam National University, Chonnam National University Museum
ABSTRACT
The purpose of this study was to investigate the changes in the property of nylon fabrics dyed with safflower red and yellow colorants under Ultraviolet(UV)-light. For this purpose, nylon fabrics dyed with safflower red and yellow colorants were compared with each other after uv-light exposure in terms of K/S value, color changes(ΔE), morphology, and strength retention. K/S value rapidly decreased with increasing exposure time, but K/S value of the samples dyed with safflower red colorants decreased less than that of samples dyed with safflower yellow colorants. In color changes, as increasing exposure time, L2increased, a2 decreased, b2 increased, and so ΔE increased in samples dyed with safflower red colorants. In color changes, as increasing exposure time, L2 increased, a2 and b2 decreased, and thereby ΔE increased in the samples dyed with safflower yellow colorants, indicating fading away by uv-light and changes of hue, value and chroma value. But the color change of samples dyed with safflower yellow colorants was less than that of samples dyed with safflower red colorants. SEM pictures showed a severe degradation by uv exposure, regardless of colorants type. Tensile strength slowly decreased until 14 days, and rapidly decreased until 28 days. Strength retention of the samples dyed with safflower yellow colorants was higher than that of the samples dyed with safflower red colorants.
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