锦棉交织物中性、活性染料一浴轧染工艺

One-bath Padding Process of Nylon-cotton Interknitted Fabric Dyeing with Neutral and Reactive Dye

锦棉交织物染色常用浸染工艺和两浴两步法轧染工艺,存在能源消耗大、工艺流程长、易出现缸差等问题。文中通过活性红CA、NF、RGB、SE分别与新诺轮中性红S-BB拼混组合,对锦棉交织物进行一浴法轧染染色。探讨了4种染料组合在不同pH值固色条件下的染色效果,分析其染色深度与色牢度,并测试了不同种活性染料的三原色Rf值。结果表明,4种染料组合在弱碱性固色条件下综合染色效果相对突出,其中活性红CA与新诺轮中性红S-BB组合具有相对优异的染色性能,并且拼色性能稳定,不易出现头尾色差,是锦棉交织物中性活性一浴法轧染染料组合的较好选择。

The dyeing process of nylon-cotton fabric commonly uses dip dyeing and two-bath two-step padding dyeing process, but which have problems such as high energy consumption, long process flow and easy to produce dyelot chromatism. In this paper, one-bath padding dyeing of the nylon-cotton fabrics was carried out by combining CA, NF, RGB and SE red reactive dyes with Xinnuolun red neutral dye S-BB respectively. The dyeing effects of four dye combinations under different pH fixing conditions were investigated by analyzing their dyeing depth and color fastness. The Rf values of the three primary colors of different dyes were tested. The results show that the comprehensive dyeing effect of the four dye combinations under the condition of weak alkaline fixation is relatively prominent. Reactive Red CA and neutral Red S-BB is the best, which has relatively excellent dyeing properties among the four dye combinations, whose color matching performance is stable without easily-occurred head-to-tail chromatic aberration.