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Wood, Claudia ; Sugiharto, Albert B. ; Max, Eva C. ; Fery, Andreas:
From conditioning shampoo to nanomechanics and haptics of human hair.
In: Journal of Cosmetic Science.
Bd. 62
(2011)
Heft 2
.
- S. 259-264.
ISSN 1525-7886
Abstract
Shampoo treatment and hair conditioning have a direct impact on our wellbeing via properties like combability and haptic perception of hair. Therefore, systematic investigations leading to quality improvement of hair care products are of major interest. The aim of our work is a better understanding of complex testing and the correlation with quantitative parameters. The motivation for the development of physical testing methods for hair feel relates to the fact that an ingredient supplier like BASF can only find new, so far not yet toxicologically approved chemistries for hair cosmetics, if an in-vitro method exists.In this work, the effects of different shampoo treatments with conditioning polymers are investigated. The employed physical test method, dry friction measurements and AFM observe friction phenomena on a macroscopic as well as on a nanoscale directly on hair. They are an approach to complement sensoric evaluation with an objective in-vitro method.