La sensation tactile des cheveux est un attribut important perceptible par le consommateur. This is also a very practical and efficient way to evaluate the degree of protection or conditioning of the fibre. Different types of hair geometry produce unique acoustic profiles as do hair types that experience harsh damaging treatments. We introduce a cutting-edge method to reproducibly evaluate the surface properties of hair. Finally, investigations of textured hair revealed that the three-dimensional structure of the hair fibre assembly and its ability to return to its original state when perturbed produce the most dominant acoustic response for this type of hair. On the other hand, hair conditioner systems mitigated the acoustic response. For example, bleached hair produced a much higher magnitude acoustic response than the corresponding virgin hair. We also examined the acoustic profile of hair that underwent chemical treatment. Increasing the normal force and velocity of the interaction led to an increase in acoustic emissions. Various experiments were conducted to develop this novel technique as a suitable measure to monitor the surface properties of hair. Acoustic emission profiles were generated allowing us to monitor the acoustic response at distinct frequencies. Data were captured with Electroacoustics Toolbox software and analysed with Matlab. Using a free-field microphone with a frequency response of 8–12,500 Hz, we recorded acoustic emission data of the interaction of skin with hair. In this study, we introduce a novel technique using the acoustic emissions produced when skin comes in contact with dry hair in a stroking motion. There are limited instrumental options to measure the haptic properties of hair. The tactile sensation of hair is an important consumer-perceivable attribute.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |