抗紫外剂改性石榴皮色素及其功能性染色  

Modification of pomegranate peel pigment with reactive UV-absorbent and its functional dyeing for silk

作　　者：姜健 吴晓杰 刘宇 宋娇 路艳华 黄凤远 JIANG Jian;WU Xiaojie;LIU Yu;SONG Jiao;LU Yanhua;HUANG Fengyuan(College of Chemical Engineering and Machinery,Liaodong University,Dandong 118003,China;College of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]辽东学院化工与机械学院,辽宁丹东118003 [2]沈阳化工大学化学工程学院,辽宁沈阳110142

出　　处：《丝绸》2023年第10期45-52,共8页Journal of Silk

基　　金：国家自然科学基金项目(51873084);辽宁省教育厅高校基本科研项目(LJKMZ20221754);辽东学院国家级大学生创新创业训练项目(202211779040)。

摘　　要：为提高蚕丝织物的功能性和附加值,文章采用抗紫外剂改性天然染料石榴皮色素染色蚕丝织物。通过单因素实验确定改性反应最佳pH值,探讨了改性反应的机理,研究了染浴pH值对织物染色性能及抗紫外性能的影响。结果表明,染浴pH值分别为3.0、4.0、5.0、6.0时,相同pH值染浴中,改性后石榴皮色素染色织物的K/S值高于改性前。染浴pH值分别为3.0、4.0、5.0、6.0、7.0时,改性后石榴皮色素染色织物的抗紫外性能显著提高,相同pH值染浴中UPF比值在1.87~2.57。染浴pH值为3.0时,改性前、后石榴皮色素染色织物的K/S值均较高,耐皂洗色牢度及耐摩擦色牢度达4~5级,UPF值分别为24.54和10.73。Natural dyes,which have the peculiarity of soft color,low sensitization,zero irritation to the human body,biodegradability,good environmental compatibility,and so on,have aroused people’s attention again.Some natural dyes have such functions as antibacteriality,anti-ultraviolet and anti-oxidation,which can enhance the added value of dyed products.Clothing people wear in summer is thin,which weakens the protection against UV rays.In summer,silk fabrics are very popular.However,due to the lightness and thinness of silk fabrics,their anti-ultraviolet function is weak.The UV-resistant finishing agent can improve the anti-ultraviolet property of silk fabrics.But the finishing agent is easy to be removed from the surface of the silk fabrics,and the anti-ultraviolet function is not durable enough.The pomegranate peel pigment,containing polyphenol substances such as punicalagin and ellagic acid,has antioxidant,antibacterial functions,and anti-ultraviolet properties.The modification reaction of the natural dye of pomegranate peel pigment with water-soluble and reactive UV-absorbent could improve the UV absorption performance.And dyeing and finishing can be carried out simultaneously when silk fabrics are dyed with modified pomegranate peel pigment,which reduces the technology process.Due to the combination of modified pomegranate pigment and fiber with van der Waals force and other forces,the anti-ultraviolet property of the fabrics is longlasting and not easy to elute.UV-Sun Cel Liq(UV-SCL for short)is a reactive and anionic UV absorber based on N,N’-diphenylacetamide(oxaloaniline)group,and it has good water solubility and anti-ultraviolet properties.Under alkaline conditions,UV absorber UV-SCL can dissociate to form the vinyl sulfone group that can react with the phenolic hydroxyl group.The phenolic hydroxyl group of polyphenol molecules in the pomegranate peel pigment can be dissociated under alkaline conditions to produce a hydroxy-oxygen anion.Through nucleophilic addition reaction,UV-SCL is connected with polyph

关 键 词：抗紫外剂 石榴皮色素 蚕丝织物 染色性能 抗紫外性能 

分 类 号：TS193.62[轻工技术与工程—纺织化学与染整工程]