녹차색소의 특성과 염색성 ( 제2보 ) - 견섬유에 대한 녹차색소의 염색성 - = Chracteristics and Dyeing Properties of Green Tea ( Part 2 ) - Dyeing Properties of Silk with Green Tea Colorants -

다국어 초록 (Multilingual Abstract)

Dyeing properties of silk fabric with green tea colorants were studied by investigating the effect of dyeing conditions, such as concentration, pH, dyeing temperature and time, on dye uptakes, and effect of mordants on color change and dye uptakes. And various colorfastnesses of dyed fabrics were evaluated for practical use. Green tea colorants showed relatively good affinity to silk fabric and produced yellowish red color. Langmuir adsorption isotherm was obtained. Therefore, it is considered that ionic bondings between colorants and silk fibers are formed. Mordants did not improve dye uptakes and affect color of dyed fabrics significantly. But mordanting adversely affected lightfastness of dyed fabrics. Regardless of mordanting, colorfastness to perspiration, especially in alkaline condition, of dyed fabrics showed low rating compared with other colorfastness, It is concluded that mordanting is not necessary for silk dyeing with green tea colorants.