新型丝绸用活性染料的应用研究

A Study on the Application of Novel Reactive Dyes for Silk

含β-牛磺基乙基砜和一氯均三嗪双活性基活性染料，是一种新型丝绸用染料，这类染料在丝绸上有很好的染色性能，匀染性好，各项色牢度优异，且染色工艺简单，染色重现性好。在色度1％、浴比为1：40的标准染色条件下，温度为50℃时，放入真丝织物，以1℃／min的升温速度升温至95℃，保温40min，用含3g／l标准合成洗涤剂溶液沸煮15min，清水漂洗干净，晾干。吸色率：95.6％～98.6％；固色率：88.5％～97.4％；当色度从0升至5％时，Integ值可达11～68.1；随电解质用量上升，Integ值增加，以40g／l～60g／l为宜；在pH为6.5～7时，染色效果最好；而对温度、染色时间和浴比的变化不敏感。所有染料的色牢度均在4～5之间，有三个品种的耐光牢度达到了6～7级。

Some novel reactive dyes containing 2-{{2-(4-Aminobenzenenesulfonyl)-ethyl}-methylamino}ethane sulfonic acid and monochlorotriazine reactive groups were used for dyeing silk, these dyes had very good dyeing properties, especially good levelness, excellent color fastnesses, good reproductivity, and employed a simple dyeing process. Silk fabrics were dyed in dyeing bath containing 1% dyes with bath ratio of 1:40 at 50℃, heated to 95℃ by 1℃/min, and kept for 40min at 95℃, then boiled in a solution containing a surfactant 3g/l, rinsed with water and air dried. The dye uptake was 95.6～98.6%, fixation was 88.5～97.4%. When the concentration of dyes was increased to 5%, the integ value was 11-68.1%. With the increase of electrolyte, the integ, value increased, and the suitable dosage of electrolyte was 40-60g/l. The dyeing effects were the best at pH 6.5-7, and not sensitive to dyeing temperature, time and bath ratio. The color fastnesses of these dyes were 4-5, and three of these dyes had high lightfastness of 6-7.