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Combing damage to hair cuticle structure / K. Ram Ramaprasad in IFSCC MAGAZINE, Vol. 10, N° 2 (04-05/2007)
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Titre : Combing damage to hair cuticle structure Type de document : document électronique Auteurs : K. Ram Ramaprasad, Auteur ; Sigrid B. Ruetsch, Auteur ; Hans-Dietrich Weigmann, Auteur ; Yash K. Kamath, Auteur Année de publication : 2007 Article en page(s) : p. 127-134 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Goniophotomètre Cheveu Abrasion Conditionneurs Cuticule 'Dommage du peignage sec et humide' Peignage 'Dispersion de la lumière' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Optical probing of hair fibres is an elegant, non-invasive method to monitor the fibre surface and its changes with various grooming protocols. In this paper, a goniophotometer with a He-Ne light source was used to study reflection profiles from single hair fibres in both the root-to-tip and tip-to-root orientations of the fibre. The calculated scale angle (the inclination of the cuticle to the fibre axis) was used as a monitor to study combing damage in hair to demonstrate the usefulness of the method. It was shown that progressive dry combing of hair leads to cuticle thinning or abrasive damage, and wet combing results in cuticle breaking or ablative damage. Further, the use of a conditioner active like a polyquaternium-10 largely mitigates both types of damage. These findings were supported by the results of a parallel scanning electron microscopic study. Note de contenu : - EXPERIMENTAL : Combing - Goniophotometry - Conditioner treatment of hair
- RESULTS AND DISCUSSION : Effect of dry-combing on scale angle - Effects of wet combing on scale - Effect of conditioner treatment on scale angle changes during combingPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10422
in IFSCC MAGAZINE > Vol. 10, N° 2 (04-05/2007) . - p. 127-134[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007989 - Périodique Bibliothèque principale Documentaires Disponible NIST reference goniophotometer for specular gloss measurements / Maria E. Nadal in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 73, N° 917 (06/2001)
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Titre : NIST reference goniophotometer for specular gloss measurements Type de document : texte imprimé Auteurs : Maria E. Nadal, Auteur ; E. Ambler Thompson, Auteur Année de publication : 2001 Article en page(s) : p. 73-80 Note générale : Bibliogr. Langues : Américain (ame) Tags : Matériau revêtement Peinture Propriété optique Feuil Brillant Réflexion spéculaire Appareil mesure Goniophotomètre Index. décimale : 667.9 Revêtements et enduits Résumé : The measurement of specular gloss consists of comparing the luminous reflectance from a test specimen to that from a gloss standard, under the same geometric conditions. The reference goniophotometer described here was designed and characterized to comply with the geometric and spectral conditions specified in the international documentary standards for specular gloss measurements at the standard geometries of 20, 60, and 85°. In addition, this instrument measures the bi-directional luminous reflectance and transmittance for incident angles from 0 to 85°. The goniophotometer and the measurement procedures used to determine the specular gloss of nonmetallic are described in this paper, as well as the characterization of the instrument and uncertainty analysis. The minimum relative expanded uncertainty (k=2) for the reference goniophotometer is 0.3%. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5736
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 73, N° 917 (06/2001) . - p. 73-80[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001225 - Périodique Bibliothèque principale Documentaires Disponible