耐晒1∶2铬络合交联染料合成与应用  

Synthesis and application of lightfast 1∶2 Cr-complexed crosslinking dyes

作　　者：周雷云[1] 唐炳涛[1] 张淑芬[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116024

出　　处：《大连理工大学学报》2011年第4期486-492,共7页Journal of Dalian University of Technology

基　　金：国家杰出青年科学基金资助项目(20525620);国家自然科学基金青年基金资助项目(20804007);长江学者和创新团队发展计划资助项目(IRT0711)

摘　　要：为了寻求提高交联染料光稳定性的有效途径,通过重氮偶合、氯化、胺解和络合四步反应合成了两支1∶2型铬络合偶氮交联染料.利用红外、质谱和核磁等分析手段对染料中间体的结构进行了表征,证实染料中间体以醌腙体结构稳定存在.利用傅里叶变换红外、原子吸收光谱对铬络合交联染料的结构进行了表征.利用紫外可见光谱研究了交联染料络合前后的最大吸收峰变化.采用无盐浸染工艺将交联染料应用到丝绸和羊毛上,并用交联剂2-氯-4,6-二(氨基苯-4′-β-磺酸酯乙基砜)-1,3,5-均三嗪将交联染料以共价键固色到纤维上.研究表明,铬络合交联染料在丝绸和羊毛上具有高竭染率以及交联率.同时引入金属铬离子后交联染料染色纤维的日晒牢度比相应的交联染料母体提高了2-3级.In order to find an effective way to improve the photostability of crosslinking dyes,two novel 1∶2 Cr-complexed crosslinking azo dyes were synthesized through diazotization and coupling reaction,chlorination,amination and metallization.The structures of the intermediate dyes were characterized by IR,MS and 1H NMR.It was confirmed that the intermediate dyes existed in hydrazone form.The structures of the Cr-complexed crosslinking dyes were characterized by FT-IR spectroscopy and atomic absorption spectroscopy.The differences of the major absorption peaks between metal-free crosslinking dyes and their corresponding Cr-complexes were studied by UV-vis spectroscopy.Silk and wool were dyed with crosslinking dyes through exhaustion dyeing without salt,and then were fixed via crosslinking agent 2-chloro-4,6-di（aminobenzene-4′-β-sulfatoethylsulfone）-1,3,5-s-triazine.The results show that the application of Cr-complexed crosslinking dyes on silk and wool exhibit high dyeing exhaustion and crosslinking reaction ratio.Moreover,the lightfastness of metallized dyes on silk and wool is 2-3 grades higher than that of the metal-free crosslinking dyes.

关 键 词：交联染料 铬络合交联染料 日晒牢度 

分 类 号：TQ616.4[化学工程—精细化工]