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时间:2020-04-17
《超声提取凤眼莲天然染料用于锦纶无媒染色.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、第31卷第8期印染助剂Vo1.3lNo.82014年8月TEXTILEAUXILIARIESAug.2014超声提取凤眼莲天然染料用于锦纶无媒染色于萍,沈发伟,许嘉怡,陆瑶,冯霞,罗艳(1.东华大学化学~Lzr-与生物工程学院应用化学系,上海201620;2.东华大学生态纺织教育部重点实验室,上海201620)摘要:以恶性杂草凤眼莲茎叶为原料,通过草因素法,探讨超声波提取天然染料的影响因素,如溶剂、提取时间、提取温度及超声功率哿所提天然染料用于锦纶无媒染色,考察染色时间、染色温度、染浴pH及染料用量对染色性能的影响古果表明:采用无水乙醇作为提
2、取溶剂,物料比1g/15mL,超声功率80w,35℃下提取90rain并重复3次,染料提取率可达4%;所提染料在98℃,浴比1:30,pH=3,染料用量2%(omf)的条件下,对锦纶无媒染色40min,可得K/S值约15的染色品,其耐摩擦及耐皂洗色牢度均在4级或以上.关键词:凤眼莲;天然染料;超声提取;无媒染色中图分类号:TQ611文献标识码:B文章编号:1004—0439(2014)08—0034—05Ultrasonicextractionofnaturaldyefromwaterhyacinthanditsapplicationtomo
3、rdant-freedyeingofnylonYUPing,SHENFa—wei,XUJia—yi,LUYao,FENGXia,LUOYan,。(1.DepartmentofAppliedChemistry,CollegeofChemistry,ChemicalEngineeringandBiotechnology,DonghuaUniversity,Shanghai201620,China;2.KeyLaboratoryofEco—Textile,MinistryofEducation,DonghuaUniversity,Shanghai2
4、01620,China)Abstract:Theimpactingfactorsonultrasonicextractionofnaturaldyes,suchassolvent,extractiontime,extractiontemperatureandultrasoniCpowerwerediscussedbymeansofsinglefactortestmethodUSlngthestemsandleavesofworstweedspecieswaterhyacinthasrawmateria1.Subsequently,nylonw
5、asdyedbytheextracteddyeswithoutmordantTheinfluencingfactorsondyeingwerestudiedindetails,includingdye—ingtime,temperature,pHanddyedosage.Itwasfoundthattheextractionefficiencyofnaturaldyescouldreach4%UndertheconditionsasfollOWS:absoluteethyIaIcohoIasextractedsolvent.materiaIr
6、atio1g/15mLUItrasonicpower80W,extractiontemperature35oC,extractiontime90minandthreetimesofextrac—tionAccordingthefolowingoptimummordant—freedyeingconditions:dyedosage2%(omf)dyeingtempera—ture98oc,bathratio1:30,pH=3,dyeingtime40min,theKTsvalueofdyedsampleswasabout15.Inaddi—t
7、ion,therubbingfastnessandwashingfastnessofthedyedsamplesweregrade4orevenhigher.Keywords:waterhyacinth;naturaldyes;ultrasonicextraction;mordant—freedyeing随着社会对生态环保及人类健康问题的日益重在供应闲难、原料昂贵、上染率低、色牢度差等缺点,视,天然染料因其环境相容性好、可生物降解且部分且需金属媒染,会造成环境污染,使产业化受阻.因此,具有药效及抗紫外作用而被广泛关注.但天然染料存开发来源丰富
8、、廉价且无需媒染的新型天然染料将收稿日期:2Ol3-08-20基金项目:国家大学生创新性实验基金资助项目(131025525)作者简介:于萍(1986一),女,湖南
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