Color simulation method for accurate prediction of resulting dyed hair color / T. Takahashi in IFSCC MAGAZINE, Vol. 9, N° 2 (04-05-06/2006)

[article]  inIFSCC MAGAZINE > Vol. 9, N° 2 (04-05-06/2006) . - p. 123-128 Titre : Color simulation method for accurate prediction of resulting dyed hair color Type de document : texte imprimé Auteurs : T. Takahashi, Auteur ; Yutaka Tango, Auteur ; Koichi Shimmoto, Auteur ; Tsuyoshi Ogihara, Auteur ; Shigeyoshi Momose, Auteur Année de publication : 2006 Article en page(s) : p. 123-128 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Hair  color'  dye'  'Three  layers  model'  'light-transmittance'  Prediction  Simulation  Device  Apparatus Index. décimale : 668.5 Parfums et cosmétiques Résumé : When choosing hair dyes, it is natural for the user to assume that the final hair color will resemble the color indicated on the product container or color chart. Often, however, the result is quite different. The ability to accurately predict resulting hair color after dyeing is essential, but not easy to attain because hair varies significantly from person to person. In this paper, a new method for predicting the dyed hair state is proposed. Our method is based on a model, where the observed final color consists of contribution from three layers of the hair structure: a melanin-containing layer, a bleached layer and a pigment-colored layer. A method for predicting the final color from responses in each layer is introduced. In this method, response formulae for each layer are derived from the energy balance, and the predicted hair color after dyeing is obtained by calculating the each equation assuming that the hair state before dyeing is solely because of the contribution from the melanin-containing layer. In addition, a small measuring apparatus utilizing this prediction method was developed and the effectiveness of our method demonstrated by data obtained before and after the hair dyeing. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10850 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
008185	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Continuous three-dimensional examination of interior hair structure / Ken-ichi Tanaka in IFSCC MAGAZINE, Vol. 8, N° 1 (01-02-03/2005)

[article]  inIFSCC MAGAZINE > Vol. 8, N° 1 (01-02-03/2005) . - p. 3-8 Titre : Continuous three-dimensional examination of interior hair structure Type de document : texte imprimé Auteurs : Ken-ichi Tanaka, Auteur ; Yutaka Tango, Auteur ; Koichi Shimmoto, Auteur Année de publication : 2005 Article en page(s) : p. 3-8 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Structure  intérieure  du  cheveu'  'Essai  non-destructif'  Tomographie  'Couleur  Polychromie Index. décimale : 668.5 Parfums et cosmétiques Résumé : The ability to continuously examine the interior hair structure throughout a treatment process is very important in designing effective hair products. Microscopy is commonly used to observe the interior of hair, but this method requires a sliced sample, making continuous observation impossible. Use of X-ray computed tomography (CT) as a non-destructive measurement has been proposed, but this method has a disadvantage in that it is impossible to obtain full-color interior images of the sample. Thus, a non-destructive method for continuous, full-color examination of the interior hair structure has been lacking. In this study a new method is proposed that enables non-destructive and continuous measurement of the interior hair structure with color information. In our method, optical CT is used for reconstruction of the interior hair structure. Our new theories enabled us to solve the crucial problem of the large observational error of traditional optical CT systems caused by internal light scattering and to make its practical application possible. A new optical CT system based on our method was implemented. This system displayed sufficient accuracy when the phantom image was measured, and clear and full-color cross-sectional images were obtained without destruction of the sample when human hair was observed. When the bleaching and dyeing processes were continuously measured, changes in the interior hair with time could be observed. These results clearly indicate that our new method provides a powerful tool for research and product development. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10461 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
003886	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)