title: Preparation and evaluation of semi-permanent hair dyes liposome.
abstract: This study used phospholipids from fresh egg yolks to prepare liposome-encapsulated semi-permanent hair dyes in different pH buffer solutions and evaluated the functions and colour fastness to washing of the dyes. The extraction ratio of egg yolk phospholipids was 5%, and the purity was 91.8%. Empty liposome solutions were then prepared using high-speed homogenizer with particle size 219-848 nm. After being stored at 4 °C for 28 days, the average particle size of the liposome-encapsulated dye formulas increased from 1.36-1.92 µm to 1.99-2.38 µm. The ΔE colour difference values of the five hair extension sets dyed with the control group and hair dyes on the market were of the range 6.56-13.39 after eight times of washing, whereas the ΔE values of the four hair extension sets dyed with the liposome-encapsulated dyes were of the range 3.56-5.21 after eight times of washing. The liposome-encapsulated dye at pH 3 showed the best result.
authors.affiliation: Department of Applied Chemistry, National Chia-Yi University, Chia-Yi, Taiwan, ROC.
authors.forename: Lichou
authors.initials: L
authors.lastname: Chen
authors.forename: Chonyu
authors.initials: C
authors.lastname: Chen
mesh_terms: D000328:Adult; D004530:Egg Yolk / Q000737:chemistry*; D005260:Female; D006197:Hair; D006202:Hair Dyes / Q000737:chemistry* / Q000494:pharmacology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008081:Liposomes; D010743:Phospholipids / Q000737:chemistry* / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D006202:Hair Dyes; D008081:Liposomes; D010743:Phospholipids