在超临界CO2介质下使用合成反应分散染料及其混合物来染色棉织物的绿色方法
Hanan Elsisi1, Shahinaz Abouelenin2, Tarek Abou Elmaaty2
1Department of Textile Printing, Dyeing & Finishing, Faculty of Applied Arts, Damietta University, Damietta, 34512, Egypt. hanan_gamal58@du.edu.eg.
Scientific reports
|November 6, 2024
概括
开发了新的反应分散染料,用于使用超临界二氧化碳对环境友好的棉花染料. 这些染料具有出色的色彩稳定性和抗菌性质,在染色过程中消除了水的使用.
科学领域:
- 织品化学 织品化学
- 绿色化学 绿色化学
- 材料科学 材料科学 材料科学
背景情况:
- 天然织物的超临界二氧化碳 (scCO2) 染色面临着挑战,尤其是在实现广泛的色调调板方面.
- 新型染料的开发对于扩大scCO2染色应用至关重要.
研究的目的:
- 为了合成和表征新型反应性分散染料用于棉花染料在scCO2.
- 为了评估这些染料及其混合物的染色性能,色彩稳定性和抗菌性质.
- 探索通过染料混合来实现各种阴影的潜力,包括绿色.
主要方法:
- 合成了两种新的反应性分散染料 (以氨酸为基础的蓝色和以Pyrazole为基础的黄色).
- 使用超临界二氧化碳与合成染料及其混合物染色棉织物.
- 用于染料表征的元素和光谱分析.
- 颜色稳定性测试 (洗) 和颜色差异指数计算.
- 评估抗菌活性对抗阳性和阴性细菌.
主要成果:
- 达到8.73的最高K/S值是通过80:20的蓝色:黄色染料混合物获得的.
- 在洗测试中观察到出色的颜色保留和耐用性.
- 通过混合蓝色和黄色染料,成功地产生了可取的绿色色调.
- 染色的织物表现出显著的抗菌特性,对抗阳性和阴性细菌.
结论:
- 新开发的反应分散染料在超临界二氧化碳中对棉花染色有效.
- scCO2染色方法为传统的水性染色提供了一个环保的替代方案.
- 染料和染色织物具有宝贵的抗菌特性,扩大了它们的潜在应用.
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