The Kinetics of Moisture Sorption by Hair

November 2024 in “ International Journal of Cosmetic Science ”

Steven Breakspear, T. A. Evans, Patrick Frueh, Anna Neu, Bernd Noecker, C. Popescu, Qi Uellner

moisture sorption dynamic vapour sorption DVS hair structure cuticle cortex chain entanglement fibre density sorption kinetics hysteresis

Studysummary This research investigated how moisture absorption impacts human hair structure, finding that moisture sorption kinetics reveal insights into chain entanglement and structural changes due to cosmetic treatments, while also quantifying the influence of sample weight and fiber density on the sorption process.

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This review highlights that hair's chemical bonds, particularly disulfide bonds, are not homogeneous, as previously thought, but instead vary in response to different cosmetic treatments, suggesting a need for further exploration of ionic bonds and hydrophobic interactions.

research Learning From Hair Moisture Sorption And Hysteresis

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This study found that the moisture sorption and desorption process can differentiate between cosmetic treatments of hair and provide insights into hair fibre structure changes, with bleaching causing greater symmetry breaking than perming.