丝瓜络纤维的漂白防黄工艺

Study on the blenching and preventing yellow process of luffa sponge

为解决丝瓜络日用品漂白加工成本高、易黄变的问题,文章研究丝瓜络纤维漂白防黄工艺。采用正交法,通过处理后的白度值及白度变化率表征处理效果,优化后得漂白和防黄工艺条件为:H2O2质量浓度为1%、漂白时间1h、漂白温度80℃、EDTA浸泡时间5min.该工艺条件下丝瓜络白度值较高、不易黄变、且处理所用时间短,可以有效地提高丝瓜络日用品性能,节省企业工业化生产成本.

To solve luffa daily goods bleaching processing high cost and easy yellowing prob- lems, the bleaching and anti yellow process of luffa fiber was studied in the work. By using the orthogonal method, via whiteness value after treatment and whiteness changing rate af- ter yellow processing to characterize treatment effects, the process conditions after optimiza- tion were：1% （w/w） H2O2 was used to treat at 80 ℃ for 1 h, EDTA immersion time was 5 minutes. In this craft conditions luffa sponge had high whiteness value, not easy yellowed, and short process time. It can effectively improve luffa daily necessities performance, and save production cost of enterprise.