印染（2024No.1）yira.cbpt.cnki.net多酚氧化酶催化马齿苋提取物对真丝织物的染色杨策1，张琪1，张维1，2æèççöø÷÷1.河北科技大学纺织服装学院，河北省纺织服装技术创新中心，河北石家庄050018；2.纺织行业天然染料重点实验室，苏州大学，江苏苏州215123摘要：为开发天然染料生态染色体系，选用漆酶、酪氨酸酶催化的马齿苋提取物对真丝织物进行染色。探讨生物酶种类、酶催化温度及染色参数对织物K/S值及色牢度的影响，综合运用多种表征手段分析染色过程及机理。结果表明，漆酶在40℃下催化提取物1h即可提高织物的染色深度。在染色温度80℃、pH为7的条件下染色3h，所得丝织物的K/S值为2.639，耐皂洗和耐摩擦色牢度达到4级及以上。漆酶催化提取物对丝织物的上染过程符合准二级动力学模型，属于化学吸附；电子鼻传感器响应雷达图显示提取物经漆酶催化后染得的织物散发出非常浓郁的芳香气味。关键词：马齿苋；漆酶催化；染色；天然染料中图分类号：TS193.62文献标志码：BDOI：10.3969/j.yinran.202401016Dyeingofsilkfabricwithpolyphenoloxidase-catalyzedPortulacaoleraceaL.extractYANGCe1,ZHANGQi1,ZHANGWei1,2æèççççöø÷÷÷÷1.CollegeofTextileandGarment,HebeiTechnologyInnovationCenterforTextileandGarment,HebeiUniversityofScience&Technology,Shijiazhuang050018,China;2.ChinaNationalTextileandApparelCouncilKeyLaboratoryofNaturalDyes,SoochowUniversity,Suzhou215123,ChinaAbstract:Inordertodeveloptheecologicaldyeingsystemofnaturaldyes,laccaseandtyrosinaseareusedtocatalyzePortulacaoleraceaL.extractforthedyeingofsilkfabrics.Theeffectsofenzymetypes,enzymatictem⁃peratureanddyeingparametersontheK/Svalueandcolorfastnessarestudied.Severalcharacterizationsareusedtorevealthedyeingprocessandmechanism.Theresultsshowthatthecolordepthofthesilkfabricisin⁃creasedbythelaccasecatalysisat40℃for1h.Whenthefabricisdyedat80℃withpHof7for3h,theK/Svalueis2.639andthecolorfastnessestosoapingandrubbingreachGrade4orabove.Thedyeingprocessoflaccase-catalyzedextractonsilkfabricfollowsthequasi-second-orderkineticmodelandbelongstochemicaladsorption.Theradarplotresponseoftheelectronicnoseshowsthatfabricsdyedwithlaccase-catalyzedex⁃tractgivesastrongeraromaticodor.Keyword...
