仿毛超细纤维织物的姜黄素低温生态染色

Curcumin Low Temperature Ecological Dyeing of Wool-like Microfiber Fabrics

采用天然染料姜黄素,以肉桂酸为载体对仿毛超细纤维织物进行低温染色,优化了肉桂酸载体用量、染色温度、时间和染液pH值等工艺条件,对织物进行扫描电镜、电子显微镜、红外光谱、防紫外线及色牢度测试。结果表明,织物姜黄素低温染色工艺为:浴比为1∶50、肉桂酸用量为6 g/L、p H值为4.0、温度90℃、时间90 min。姜黄素提取液最大吸收波长为430 nm;扫描电镜、显微镜结果表明染色涤纶纤维表面光滑,涤纶纤维纵向具有较好染色效果,且姜黄素深入到涤纶纤维内部,表现出较好的透染性;红外光谱分析表明,染色涤纶纤维结构中有明显的姜黄素羟基吸收峰;染色织物具有较好的防紫外线性能,干摩4~5级,湿摩4级,耐皂洗色牢度也较好。

The natural dye turmeric was used to dye wool-like microfiber fabric at low temperature with cinnamic acid as the carrier.The influence of cinnamic acid carrier dosage,dyeing temperature,dyeing time and pH value on dyeing effect was optimized.The dyed fabric was observed by scanning electron microscope,electron microscope,IR spectrum,antibacterial and ultraviolet resistance and dyeing fastness.The results show that the low temperature dyeing process of turmeric for wool-like microfiber fabric is as follows:the bath ratio is 1:50,the dosage of cinnamic acid is 6 g/L,the pH is 4.0,the temperature is 90℃ and the time is 90 minutes.The visible absorption wavelength of turmeric extract is 430 nm.The results of scanning electron microscope and microscope show that the surface of dyed polyester fiber is smooth,the dyed fiber has a good dyeing effect in the longitudinal direction and cross section,and the curcumin goes deep into the interior of polyester fiber.The infrared spectrum analysis shows that the curcumin hydroxyl group absorption peak is more obvious in the polyester fiber structure.The dyed fabric has good UV resistance and no obvious antibacterial properties with dry friction color fastness of level 4~5,wet friction color fastness of level 4 and good soap-resistant color fastness as well.