One step scouring/bleaching process for cotton with activated sodium percarbonate system
Combined scouring and bleaching process for cotton was carried out with Tetraacetylethylenediamine (TAED)-activated sodium percarbonate (PC) system.In-situ generated peracetic acid (PAA) in the system can function as the bleaching oxidizer under low-temperature and near neutral-pH conditions.Effects of PC concentration PC, temperature (T) and duration (t)on the hunter whiteness index (WI) and capillary effect (CE) of fabrics were investigated.Research results showed that T had a significant influence on both WI and CE, followed by PC and t.WI was improved with the increasing PC due to the increasing produced PAA, but PC used in excess of the stoichiometric amount with respect to TAED could not produce an obvious addition effect.Cotton fabric obtained satisfied WI(67.2) and CE (10.5cm/30min) at 70℃ after it was processed in the system incorporating 10mmol/L PC, 15mmol/L TAED and 2g/L wetting agent for 30min.Comparing with the traditional H2O2 system which was performed at 95℃ for 45min, the activation system imparted higher WI and CE as well as less strength damage to the cotton fabric.
PC TAED cotton bleaching scouring
Qing Li Zixiang Shen
College of Chemistry and Chemical Engineering,Wuhan Textile University, Wuhan 430200, China Zhejiang Jinke Peroxides Co., Ltd., Shaoxing 312000, China
国际会议
The 9th China International Silk Conference (ISC2016)(第九届中国国际丝绸会议)
广西宜州
英文
344-349
2016-09-09（万方平台首次上网日期，不代表论文的发表时间）