Accueil
Détail de l'auteur
Auteur Heng Pan |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Effects of age on the structure ad bleaching/dyeing behaviour of hair / Haona Wang in COLORATION TECHNOLOGY, Vol. 137, N° 3 (06/2021)
[article]
Titre : Effects of age on the structure ad bleaching/dyeing behaviour of hair Type de document : texte imprimé Auteurs : Haona Wang, Auteur ; Li Kong, Auteur ; Honghui Xia, Auteur ; Jie Min Huang, Auteur ; Bo Deng, Auteur ; Heng Pan, Auteur Année de publication : 2021 Article en page(s) : p. 226-233 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Âge
Caractérisation
Cheveux -- analyse
Cheveux -- Propriétés mécaniques
Cheveux -- Teinture
Décoloration
Etudes comparativesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : The structure and bleaching/dyeing behaviour of hair sampled from people of various ages were investigated to provide guidance for wig-making. Hair surface and cross-sectional morphology were investigated by scanning electron microscopy, whereas the number density and size of melanin granules were evaluated by transmission electron microscopy. The suitability of hair for dyeing was determined by the trade-off between the fracture strength and lightness of bleached samples. Hair collected from 26-year-olds showed the highest number density and the lowest size of melanin granules, thus featuring the lowest mechanical strength reduction and the highest lightness increase after bleaching. The optimal bleaching conditions for such hair were identified as bleaching time = 80 minutes, hydrogen peroxide (H2O2) concentration = 60 mL/L, and bleaching temperature = 75°C. Considering its resilience to damage and favourable dyeing behaviour, hair sampled from 26-year-olds was concluded to be most suitable for wig-making. Thus, the present research provides guidance for the selection of raw materials for wig-making. Note de contenu : - EXPERIMENTAL : Materials - Rinsing of human hairs - Pretreatment and bleaching of human hairs - Dyeing of human hairs - Hair characterisation
- RESULTS AND DISCUSSION : Effects of age on hair surface and cross-sectional morphology - Effects of hair age on the number density and average area of melanin granules - Effects of bleaching on hair fracture strength, lightness, and regularity - Optimal bleaching conditions for 26-year-old hair - Comparison of control, bleached, and dyed 26-year-old hairDOI : https://doi.org/10.1111/cote.12525 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12525 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36089
in COLORATION TECHNOLOGY > Vol. 137, N° 3 (06/2021) . - p. 226-233[article]Réservation
Réserver ce documentLow-temperature dyeing of meta-aramid fabrics pretreated with 2-phenoxyethanol / Dan Sheng in COLORATION TECHNOLOGY, Vol. 133, N° 4 (08/2017)
[article]
Titre : Low-temperature dyeing of meta-aramid fabrics pretreated with 2-phenoxyethanol Type de document : texte imprimé Auteurs : Dan Sheng, Auteur ; Yunli Wang, Auteur ; Xin Wang, Auteur ; Xuefeng Lu, Auteur ; Jiang Shan, Auteur ; Heng Pan, Auteur ; Genyang Cao, Auteur ; Weilin Xu, Auteur Année de publication : 2017 Article en page(s) : p. 320-324 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique
Basses températures
Fibre aramide
Fourier, Spectroscopie infrarouge à transformée de
Phénoxyéthanol
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, meta-aramid fibres were pretreated with 2-phenoxyethanol under different conditions to investigate the effect of 2-phenoxyethanol on the dyeing of aramid at low temperature (95 °C). Structural alteration of the pretreated fibres was reflected by thermogravimetry and Fourier transform infrared spectroscopy, indicating more H-bonds, lower crystallinity, and slightly lower thermal stability. The change in structure showed that 2-phenoxyethanol combined with the fibre macromolecules and resulted in swelling of the fibre. Creation of a biphasic system through the addition of 2-phenoxyethanol to the dyeing solution resulted in the cationic dye being partitioned more towards the 2-phenoxyethanol-rich phase than the aqueous phase. The cross-sections of the dyed fibre suggested that the meta-aramid fibre could be dyed more thoroughly with an appropriate concentration of 2-phenoxyethanol. The colour value of aramid fabric was tested by varying the concentration of 2-phenoxyethanol and the temperature of pretreatment, indicating a dramatic improvement in dyeing performance to aramid after 2-phenoxyethanol pretreatment. 2-Phenoxyethanol pretreatment and low-temperature dyeing can overcome the problems of chemical and energy waste while producing a satisfying colour. Note de contenu : - EXPERIMENTAL : Materials - Preparation - Pretreatment - Dyeing - Measurements and characterisations
- RESULTS AND DISCUSSION : Thermal analysis - FTIR analysis - Partitionning of dye in a 2-phenoxyethanol-water biphasic mixture - Dye diffusivity - Effect of experimental parametersDOI : 10.1111/cote.12283 En ligne : https://drive.google.com/file/d/160xmjrbmkre8FwTq-Z4EjsOKGP65u2vo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28885
in COLORATION TECHNOLOGY > Vol. 133, N° 4 (08/2017) . - p. 320-324[article]Réservation
Réserver ce document