Titre : |
Protective effect of calcium hydroxide in hair-saving unhairing process |
Type de document : |
texte imprimé |
Auteurs : |
Hu Yang, Auteur ; Lan Liu, Auteur ; Dan Weihua, Auteur ; Dan Nianhua, Auteur |
Année de publication : |
2013 |
Article en page(s) : |
p. 200-206 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Chaux Cuirs et peaux -- Défauts CystineLa cystine est un acide aminé composé de deux unités cystéine liées par un pont disulfure. Epilage Immunisation (épilage)
|
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
To better understand the mechanism of alkali-induced hair immunization, in this work native bovine hair was selected as the direct research subject rather than fresh salted bovine hide. The state of hair was evaluated, both before and after having undergone the procedure of immunization by measuring the changes of active groups, thermal stability, surface morphology, strength, calcium content and cystine content. The result indicates that the immunization is indeed caused by the interaction between calcium hydroxide and the cystine active center. Meanwhile, the optimum condition for immunization was: calcium hydroxide 15g/I and treatment time 90 minutes. This work may, to some extent, provide theoretical support for searching for the balance between the dehairing [hair burning] and hair saving process. |
Note de contenu : |
- IMMUNIZATION PHENOMENON
- EXPERIMENTAL PROCEDURE : Raw materials and chemicals - Tests for hair characterization - Analysis of waste liquor
- ASSAYS : Protective effect of immunization against the attack of reducing agent - Hair characterization - Pollution evaluation of the hair-saving unhairing |
En ligne : |
https://drive.google.com/file/d/1q7gZWIMmjuSJ327BMFmwfx82EZWa1BXX/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19568 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 97, N° 5 (09-10/2013) . - p. 200-206