摘要
采用臭氧对硫化黑染色棉织物进行脱色处理,对脱色反应的动力学过程进行分析,并对脱色后的棉织物结构和力学性能进行表征,结果表明,硫化黑染色棉织物的臭氧脱色过程遵循准二级动力学方程,其过程比硫化黑染料溶液的臭氧脱色过程要复杂,臭氧不仅与染料分子发生作用,也会与纤维上基团发生作用;由电镜图可以看出,随着臭氧处理时间的延长,纤维表面的细纹会增多,80min后会出现剥离性斑块,臭氧处理后织物的拉伸强力下降,断裂伸长率几乎不变,其干摩擦牢度均强于湿摩擦牢度,干摩擦牢度一般在4~5级之间,湿摩擦牢度一般在3~4级之间。
The ozone decolorization treatment of sulfide black dyed cotton fabric was carried out,the kinetic process of the decolorization reaction was analyzed, and the structure and mechanical properties of the decolorized cotton fabric were characterized.The results showed that the ozone decolorization process of sulfide black dyed cotton fabric followed the quasi-second-order kinetic equation,the process was more complicated than the ozone decolorization process of sulfur black dye solution.Ozone not only interacted with dye molecules,but also with groups on fibers.It can be seen from the electron micrograph that with the extending of ozone treatment time,the fine lines on the fiber surface increased, and peeling appeared after 80 min.After the ozone treatment, the tensile strength of the fabric decreased, and the elongation at break was almost unchanged.The dry rubbing fastness was stronger than the wet rubbing fastness.The dry rubbing fastness was generally 4-5 and the wet rubbing fastness was generally 3-4.
作者
帅旗
徐浪
别必涵
易长海
左丹英
SHUAI Qi;XU Lang;BIE Bihan;YI Changhai;ZUO Danying(State Key Laboratory of New Textile Materials and Advanced Processing Technology,Wuhan Textile University,Wuhan 430200,China;State Key Engineering Laboratory for Advanced Textile Processing and Clean Production,Wuhan Textile University,Wuhan 430200,China)
出处
《纺织科技进展》
CAS
2022年第9期19-23,共5页
Progress in Textile Science & Technology
基金
湖北省自然科学基金项目(2020CFB799)
湖北省大学生创新训练计划项目(S202010495004)。
关键词
臭氧脱色
动力学
棉织物
硫化黑染料
ozone decolorization
kinetics
cotton fabric
sulfur black dye
