| Titre : |
Role of anionic chromium species in leather tanning |
| Type de document : |
texte imprimé |
| Auteurs : |
Kumar Abhinandan, Auteur ; Jaya Prakash Alla, Auteur ; Deepika Arathanaikotti, Auteur ; Ashok Raj J., Auteur ; N. K. Chandrababu, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 368-373 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anions
Cuirs et peaux -- Propriétés organoleptiques
Cuirs et peaux -- Propriétés physiques
Eaux usées -- Analyse
Microscopie électronique à balayage
Taille des particules
Tannage au chrome
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Chrome tanned leathers are definitely unique in comparison with leather made from any other known tanning agents, especially in terms of thermal stability, cost and its reactive mechanism with collagen fibers. In our current studies, self basifying chrome tanning materials masked with different percentages of organic acid were prepared and applied after the de-liming stage of leather processing. This eliminated the need for pickling and basification steps. Tanned leathers resisted shrinkage up to 103 and 105±2°C while conventional chrome tanned leathers resisted up to 108±2°C. Also, interaction of anionic chrome species in tanning was studied. It was observed that the percentage of anionic species in the experimental chrome tanning material was higher than conventional chrome tanning material and the shrinkage temperature achieved by application of experimental tanning material proves that anionic species do involve in tanning. Tanned leathers were crusted and analysed for strength and organoleptic properties. |
| Note de contenu : |
- EXPERIMENTAL SECTION : Reagents - Preparation of tanning material - Anion exchange chromatography - Particle size - Application as tanning material - Exhaustion studies and wastewater analysis - Scanning electron microscopy (SEM) analysis - Physical strength properties and organoleptic properties
- RESULTS AND DISCUSSION : Speciation of chrome liquor prepared - Analysis of tanning material - Leather application - Scanning electron microscopy analysis - Exhaustion and wastewater analysis - Strength and organoleptic properties
- Table 1 : Process employed for control and experimental chrome application
- Table 2 : Ion exchange chromatography of chrome species
- Table 3 : Comparison of wet blue leathers |
| DOI : |
https://doi.org/10.34314/jalca.v116i10.4618 |
| En ligne : |
https://drive.google.com/file/d/1FyFXTw0BUCV9Me9-fysJn1ImFbomD5zu/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36408 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVI, N° 10 (10/2021) . - p. 368-373
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