| Titre : |
Characterization and mechanism of zinc salts as tanning agents |
| Type de document : |
texte imprimé |
| Auteurs : |
Shan Cao, Auteur ; Baozhen Cheng, Auteur ; Qiaoe Wang, Auteur ; Bing Liu, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 428-433 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Agents de tannage
Caractérisation
Cuirs et peaux
Sels métalliques
Zinc
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Zinc has important biological functions as one of the essential trace elements to human. The Zinc tanning agent could produce white leathers with properties comparable to the chrome tanning agent, and the tanning agents based on Zinc salts were prepared using different masking agents such as sodium formate, sodium acetate, sodium tartrate and potassium hydrogen phthalate. The selection of the zinc tanning agents has been optimized based on the properties like hydrothermal stability and percentage exhaustion of zinc. The results indicated that zinc sulfate can be used as tanning agent under acidic conditions (50g/L, pH=3, 25°C) and is an effective and superior method. Moreover, Sodium citrate (0.1mol/L) was selected as masking agent compared with other masking agents. The hydrothermal stability was improved effectively with the action of masking agent. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Equipment - Materials - Preparation of zinc ion measuring reagent - Preparation of tanning reagent - The optimal conditions of zinc tanning procedure - The selection of the masking agent for zinc tanning
- RESULTS AND DISCUSSION : Hydrothermal stability of wet leather tanned with zinc salts - The effects of masking agent - The principle of zinc tanning
- Table I : Type and concentration of zinc tanning agent
- Table II : The hydrothermal stability of different concentration of zinc tanning agent
- Table III : The selection of the zinc agent's species
- Table IV : Hydrothermal stability the masking agent's species in zinc tanning process |
| En ligne : |
https://drive.google.com/file/d/1l3UkjsTmwceI2XZXciXSUZCOia90qlzY/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19691 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVIII, N° 11 (11/2013) . - p. 428-433
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Characterization and mechanism of zinc salts as tanning agents in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 11 (11/2013)
