A Study on the improving Dyeing properties of Natural Dyes

천연염료의 염색성 향상에 관한 연구

Cotton fabric was treated with Cationon UK(tertiary ammonium salt) to improve the dyeability to black tea colorants. In order to investigate the efficacy of Cationon UK for improving dyeing properties of cotton fabric, the effect of Cationon UK treatment conditions and dyeing conditions on dye uptake of the cotton fabrics treated with Cationon UK were examined and the colorfastness to washing, perspiration, rubbing and light was also evaluated for practical uses. Cationized cotton treated with Cationon UK showed high dye uptake at lower dyeing concentration and shorter dyeing time, compared with untreated. Dyeing temperature did not affect significantly dye uptake and the maximum dye uptake was obtained at pH 5. Most colorfastness was relatively good, showing 4/5∼5 rating.

양이온화 처리에 의한 면직물의 홍차색소에 대한 염색성을 향상시키고 그 유효성을 밝히고자 양이온화제 처리조건이 염착량에 미치는 영향, 염색조건이 양이온화제 처리직물의 염착량에 미치는 영향을 조사하고, 세탁, 땀, 마찰 및 일광견뢰도를 측정하였다. 면직물은 양이온화제 전처리에 의해 염착량이 현저하게 증가하였으며, Langmuir 등온흡착곡선을 보여 주로 이온 결합에 의해 염착이 됨을 알수 있었다. 또한 면직물에 대한 홍차색소의 시간에 따른 염착량은 40분간의 염색으로 빠르게 평형염착이 이루어졌으며, 온도와 pH에 따른 염착량은 10$0^{\circ}C$, pH 5에서 최대염착량을 보였다.