响应面法优化羊毛衫超临界CO_(2)扎染工艺

Optimization of supercritical CO_(2) tie-dyeing process of woollen sweater by response surface method

为了解决羊毛衫传统扎染工艺中耗水耗能大、环境污染严重等问题,采用超临界CO_(2)扎染技术对羊毛衫进行扎染。在单因素实验基础上,以扎染温度、扎染压力、扎染时间和染料用量为因变量,以羊毛衫ΔE值为响应值,进行4因素3水平的Box-Behnken中心组合设计和响应面法优化,确定了最佳工艺条件为:扎染温度104℃,扎染压力22 MPa,扎染时间58 min,染料用量6%(omf)。

In order to solve the problems of large water and energy consumption and environmental pollution in the traditional tie-dyeing process,the supercritical CO_(2) tie-dyeing technology was used in tie-dyeing of woollen sweater.On the basis of single-factor experiments,taking tie-dyeing temperature,tie-dyeing pressure,tie-dyeing time and amount of dyes as dependent variables andΔE value as response value,Box-Behnken central combination design and response surface method optimization of four factors and three levels were carried out.The optimized tie-dyeing process was as follows:tie-dyeing temperature 104℃,tie-dyeing pressure 22 MPa,tie-dyeing time 58 min and the amount of dyes 6%(omf).