Dyeing of Biotreated and Gamma Irradiated Cotton Fabric using Direct Yellow 12 and Direct Yellow 27

ABSTRACT

The present study is concerned with dyeing of gamma irradiated and biotreated cotton fabric using direct dyes. Dyeing was performed after exposing fabric to gamma rays at 18 and 14 kGy for Direct Yellow 12 and Direct Yellow 27, respectively, using Cs-137 irradiator. It was found that dyeing of biopolished cotton after gamma rays treatment gives good color strength at 50 °C for 70 min keeping M:L of 1:40 in the presence of 4 g/L of salt using Direct Yellow 12. While for Direct Yellow 27, better results were obtained at 50 °C for 50 min keeping M:L of 1:40 in the presence of 2 g/L salt. The biotreatment of fabric before gamma rays irradiation has reduced dyeing time and amount of salt used which shows that it is the time effective tool for direct dyeing of cotton. The improvement in colorfastness properties show that biotreatment before gamma ray treatment is an effective method for modifying textile processing.

摘要

本研究考察用直接染料对棉织物进行伽玛辐照染色和生物处理染色。执行染色的条件是：将织物放在铯137辐照器的伽玛射线下，分别暴露于18和14千戈瑞条件下以实现直接黄12和直接黄27。研究发现，伽玛射线处理后经过生物处理的棉染色在50℃下具有良好的颜色强度，使用直接黄12时在4克/升盐条件下能将M:L维持在1:40长达70分钟。而对于直接黄27，则得到了更好的结果，即在50℃、4克/升盐条件下能将M:L维持在1:40长达50分钟。伽玛射线照射前织物的生物处理减少了染色时间和盐使用量，表明它是节省棉花直接染色时间的有效工具。色牢度性能的改善表明伽玛射线处理前的生物处理是改进纺织品加工的有效方法。

KEYWORDS:

• Biotreatment
• colorfastness
• cotton
• direct dyes
• gamma irradiation
• spectra flash SF 650

关键词:

• 生物处理
• 色牢度
• 棉布
• 直接染料
• 伽玛射线
• SF 650
• 光谱闪光灯 SF 650

Acknowledgments

We are grateful to authorities of Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan, for providing the radiation facility, and Mr. Zafar Manger QA & QC of Noor Fatima Textile (Pvt.) Limited, Faisalabad and Muhammad Abbas Director Harris Dyes and Chemical (Pvt.) Limited, Faisalabad for providing the fastness testers and spectra flash (SF650).