涡流纺筒子棉纱剥色技术

Stripping technology for vortex spun cotton yarn packages

为减少剥色后涡流纺筒子棉纱的强力损失,且达到良好的剥色效果,研究并设计了涡流纺筒子棉纱剥色工艺。结果表明,纯碱和保险粉用量、剥色时间、剥色次数以及剥色温度等工艺条件都会影响深色、中深色和浅色棉纱的剥色效果。通过单因素调节确定了优化的剥色工艺:浅色棉纱采用2 g/L纯碱、4 g/L保险粉,在90～100℃剥色40～60 min;深色、中深色棉纱采用4 g/L纯碱、6 g/L保险粉,100℃剥色60 min。采用该工艺可尽量保持涡流纺筒子棉纱原有的强力,且具有良好剥色效果。

Stripping technique for cortex spun cotton yarn package is designed in order to achieve good stripping result and minimize the strength loss of the stripped yarns.The research results show that the stripping results of deep shade-and middle to deep shade-and light shade cotton yarns were influenced by various stripping conditions such as amounts of sodium carbonate and sodium hydrosulfite,stripping time and temperature,and number of stripping.The optimized stripping process conditions were obtained through single factor analysis.For light shade cotton yarns,the optimum conditions include sodium carbonate 2 g/L,sodium hydrosulfite 4 g/L,treatment at 90-100 ℃ for 40-60 min.In the case of deep shade-and middle to deep shade cotton yarns,sodium carbonate 4 g/L,sodium hydrosulfite 6 g/L,treating at 100 ℃ for 60 min are required.This stripping technique has good stripping results for cortex spun cotton yarn packages and maximizes the strength retention of the cotton yarns.