CAJ | 학술논문

稀土元素铈化学性质活泼,在合适条件下,有生成络合物的强烈倾向.采用硝酸铈作为促染剂,研究毛用活性染料对海藻酸纤维染色过程中,硝酸铈、柠檬酸、温度和pH值等因素对上染百分率的影响,其染色优化工艺为:染料2%(owf),柠檬酸6.25%(owf),硝酸铈1.0～1.5%(owf),40℃入染,升温至80℃染色45 min,浴比1:50.试验表明,硝酸铈可提高毛用活性染料对海藻酸纤维的上染百分率和K/S值,对耐热水洗牢度影响不大.
희토원소시화학성질활발,재합괄조건하,유생성락합물적강렬경향.채용초산시작위촉염제,연구모용활성염료대해조산섬유염색과정중,초산시、저몽산、온도화pH치등인소대상염백분솔적영향,기염색우화공예위:염료2%(owf),저몽산6.25%(owf),초산시1.0～1.5%(owf),40℃입염,승온지80℃염색45 min,욕비1:50.시험표명,초산시가제고모용활성염료대해조산섬유적상염백분솔화K/S치,대내열수세뇌도영향불대.
Rare earth elements cerium is chemically active,and it has a strong complex-forming tendency under proper condi-tion. Taking cerium nitrate as accelerant, alginate fibers were dyed with reactive dyes for wool. Main factors affecting dye up-take were discussed, such as dosages of citric acid and cerium nitrate, pH value of dye bath and dyeing temperature. The opti-mum dyeing process was determined as: reactive dyes for wool 2%(owf) ,citric acid 6.25% (owf),cerium nitrate 1.0%～ 1.5 % (owf),liquor ratio 1:50, and dyeing beginning at 40 ℃, heating to 80 ℃ and holding for 45 minutes. Experiments showed that cerium nitrate could increase the dye uptake and K/S value, and had little effect on color fastness to hot water.