发用护色原料的开发和评测

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1、ProtectionofOxidativeHairColorFading:DevelopmentandEvaluationSummaryHaircoloringhasbecomemoreandmorepopularinpastdecades,aspeopleusecolortoexpressthemselves.However,nodyesareactually“permanent”dyes.Duetosmallsizeofdyemolecules,theyeasilyleachoutofhairfibers,leadingtocolorfadingandchangeintoneuponexp

2、osuretophysicalandchemicaltreatments.Avarietyofstrategieswereemployedtohelpminimizefadingandimprovecolormaintenance,includingusingcolorprotectionproducts.Haircareingredientswereexploredtoavoidhaircolorlose,andbecomeanimportantpartonanumberofanti-fadingregimens.Inthepaper,hairdyingprinciplewasbriefly

3、introducedandreasonsfordyelostwerediscussed.Theingredientsclaimedforanti-fadingaswellastheirmechanismswereclassifiedandcompared.Thepaperalsoreviewsthemethodsdesignedforevaluationofcolorprotectioneffect,includingsubjectiveevaluation,colorimeterandimageanalysismethods.Styleze®W-20asarepresentativeanti

4、-fadingingredientwasdescribedandvaluated.Insummary,colorfadingandthelossofcolorvibrancytypicallycomeswitheverydaywashing.Theneedofconsumerswhowanttoextendthedurationofrich,brillianthaircoloracceleratedthedevelopmentofanti-fadingproducts.Mostcolorprotectionformulationsnowadaysreliedsubstantiallyonthr

5、eekindsofingredients:polyquaterniumcompound,siliconeandplantabstraction.Polyquaterniumbasingoncation-stickandfilm-formingmechanismpresentedleadinganti-fadingeffectinvariousproducts.Styleze®W-20,aspolyquaternium,showedperceivablecolorlockeffect,providing34.82%improvementcomparedwithblankgroup.Alsothe

6、higheranti-fadingefficacyofStyleze®W-20systemovercommercialbenchmarksisprovenwithfivedifferenttypesofdyecolorsaswell.发用护色原料的开发和评测董思宇，孙汝溦，朱中卫，徐蕴，瞿欣领先特品化学（上海）有限公司，上海技术中心，中国上海Zhou,Yan**ISP/Research&Development,Wayne,NewJersey.,USA随着社会经济的发展和人们生活水平的提高，染发的潮流在中国悄然兴起，已经成为一种流行时尚。不同年龄，不同性别的人都开始选择染发剂改变自己原有的发色，

7、配合服饰和妆容，或为张扬个性，或为掩盖白发，保持年轻形象。染发，这种简单易行的美容手段带给我们色彩斑斓的生活同时，也带给了我们一些困扰：为什么刚染的头发没多久就“黯然失色”了呢？这已成为消费者经常性的抱怨。如何能使染后发色保持得更久一点，哪些发用产品具有护色功能以及如何验证产品护色宣称都已成为热门的研究方向。本文将就导致发色脱落的原因，发用护色产品的评测以及护发产品的研发现状等问题进行探讨和评述。