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1、Cosmetic Formula DesignChinese Cosmetic ConferenceDisappeared domestic cosmetic brandsThe Design of Emulsion SystemOutline4Introduction123The function of emulsionThe design of emulsion systemNotesIntroductionThe significance of the step The definition of emulsionThe basic types of emulsionoilwateroi
2、lwaterstop stirwateroiladd emulsifierstirO/WW/OorThe basic types of emulsionW/OO/WThe function of emulsionO/W emulsionW/O emulsionGood spread quality fresh and not greasySmooth appearance efficient washing effect excellent lubricationemulsion Difficult for intakingEasily evaporateCannot afford enoug
3、h waterwaterInhibit the evaporationOilyImpede the breath of the skinoilSelect the materialsChoose the type of emulsifierAdjustmentGood surface activity Form a stable film Remove to the surface quicklyThe design of emulsion systemDetermined by the cosmeticsThe HLB The PH The viscosityNotesThe emulsif
4、ying device The time of emulsion process The temperature of the process The mixing speedThe Design of Thickening SystemThe function of thickening systemThe thickeningmechanismThe thickening agentsOutlineKeep heterogeneous in a stable equilibriumMore easily to apply the productThickening system is by
5、 one or more thickening agents in cosmeticproductsEnchance the viscosity and get a rich appearanceSimplify the design of suitable packagingThe function of thickening system Thickening mechanism(1) Non-associative mechanismchain entanglementparticulatesmodifiers(2) Associative mechanismNetworkClassif
6、ication Of Thickening AgentsThe Design of Functional SystemOutline Definition of functional system Design of functional system Application of functional systemDefinition of Functional System Functional system means adding active ingredient into cosmetic, making it have certain effect. Design of Func
7、tional Systempurposeendtwo design principlesselect materialsfind solutionsmechanismeffectsafetyMoisture cream mechanism of water losswater moleculesskin cellsSolutionsGrease 油脂Water moleculesSkin cellsMoisture cream SolutionsPolyol 多元醇Water Molecule sSkin cellsMoisture cream SolutionsNatural ingredi
8、ent 天然物质 Water Molecule sSkin cellsMoisture cream SolutionseffectsafeApplication of Functional SystemApplication of Functional SystemThe Design of Anti-oxidant Systemfamous brands VS ordinary onestips: materials quality ?guaranteecommon characteristics ?unsaturated fatty acidsperoxides rancidity the
9、 main spoilage process oxidation free radicalsMechanism of oxidationCommon antioxidants(VE) (VC) (SOD)prevent oxidationAdd antioxidantsantioxidants aided antioxidants function wellmercaptan (硫醇) sulfide （硫化物） Phosphate（磷酸盐）Mechanism of anti-oxidationAnti-oxidation systemFormula systemGrease in formu
10、la system Type of greaseAmount of greaseAntioxidantsAmount of oxidantsComposite of stabilizerDetermination of quantity , optimizationefficient evaluation measure the speed of oxidation determination of peroxide low oxidation value design testsMeasurement of oxidationOther methodsThe Conservation of
11、Cosmeticssome kinds of additivesWorld filled with cosmeticsproblemspoiledembarrassedThe conservation of cosmetics some kinds of additives Purpose Experiment Results and discussionOutline Experiment Chitosan Alginate Carrageenan We choose three kind of natural additives to check their effects of ster
12、ilization, respectively.Chitosan Chitosan Natural polysaccharide extracted from crabsnow crabCarrageenan Carrageenan Linear polysaccharide extracted from red seaweedAlginate Alginate Natural polysaccharide extracted from brown algaeMaterials Cosmetics pasteThree kinds of substance we mentioned above
13、 Cell culture dishSample A Add chitosan to cosmetics paste; Observe the amount of bacterial group after 24h; Calculate the ratio of sterilization.cosmeticsSample B and C Add carrageenan to cosmetics paste; Observe the amount of bacterial group after 24h; Calculate the ratio of sterilization. Add alg
14、inate to cosmetics paste; Observe the amount of bacterial group after 24h; Calculate the ratio of sterilization.FormulaComparison samplethe ratio of sterilizationA7B70C29Conclusion Chitosan is the best additive to conserve the cosmetics because of its cation; but it fail to help us clean our pore. C
15、arrageenan is usually used in the food additive; no sterilization can be observed in our study. Alginate is a natural anionic polysaccharide, it is also not adapted to be a kind of antibacterial; but the structure of its molecule determine that it can be applied to attend to our skin.The Design of Sensory Modification SystemOutline Color design requirements Perfumer design requirementsThe first partColor designEndless changes in colorPrinciple of color designCosmetic paletteThe influence of cosmetic
