Study on the Pigment Removal Capabilities of Mild Surfactants on Dyed Hair
The study primarily explores the use of ultrasound for simulating the multiple washing processes of dyed hair in real-life scenarios.This method is employed to assess the pigment removal capabilities of various anionic surfactants,amphoteric surfactants,and non-ionic surfactants on dyed hair swatches.The results indicate that the ranking of pigment removal capabilities for dyed hair swatches is as follows:anionic surfactants>amphoteric surfactants>non-ionic surfactants,aligning closely with the general ranking of surfactants'mildness.Within the category of anionic surfactants,traditional sulfate surfactants exhibit stronger pigment removal capabilities compared to other milder options,such as sodium cocoyl isethionate,sodium taurine cocoyl methyltaurate,and sodium methyl cocoyl taurate.Based on the screening results,a shampoo formulation with less impact on colored-hair pigment was developed.This shampoo demonstrates color protection effects comparable to some commercially available products claiming hair color protection.
万方数据
维普
