| Titre : |
Comparative study of glucose and sulfur dioxide reduced chrome powders |
| Type de document : |
texte imprimé |
| Auteurs : |
Ding Xiaoliang, Auteur ; Shan Zhihua, Auteur ; Fu Xianbing, Auteur ; Sun Hu, Auteur ; Ying Xiaoyan, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 21-27 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Absorption
Agents de tannage
Colorimétrie
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Analyse
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés physiques
Cuirs et peaux -- Teinture
Microstructures
Poudres
Retannage
Solubilité
Tannage au chrome
Température de retrait
Wet-blue (tannage)Peau tannée au chrome (le chrome donne une couleur bleue)
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
The chrome tanning agent is always an important material for leather manufacture because of its tanning power and the leather's sensory appeal which cannot be achieved by other tanning agents. The maturation of the chrome tanning technique over one hundred years, allows the leather produced to be distinguished by its nuances. Nowadays, it is beneficial to review the function of chrome tanning agents again because the standards of new market values and environmental requirements require more sophisticated application techniques.
The characteristics of two kinds of chrome tanning agents, such as the glucose reduced chrome powder (GCr-S) and the sulfur dioxide reduced chrome powder (SCr-S), were explored by modern analytical detection methods, including the hydrolysis and spectral absorption features; the penetration velocity and absorption rate in pickled hides. The application performance of the two chrome tanning agents used in tanning and retanning was characterised by the handle and physical/mechanical properties of leather after dyeing and fatliquoring. Because of their different composition, structure and hydrolysis characteristics of their solutions, the differences between the two chrome tanning agents in the tanning powers and the differences between the two kinds of leathers in appearance, strength and histological state are represented respectively. It was suggested how to choose and use the type of chrome tanning agent to meet the quality requirements of the leather. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Main materials - Basic characteristics of chrome tanning agent - Chrome tanning - Retanning, dyeing and fatliquoring of wet-blue - The microstructure of crust leathers
- RESULTS AND DISCUSSION : Comparative analysis of solubility - Comparative analysis of hydrolysis characteristic - Comparative analysis of spectral absorption - Penetration and absorption of chrome agents - Comparative analysis of chromium content - Shrinkage temperature of tanned leather -Comparative analysis of chromaticity and colour difference - Comparative analysis of grain - Comparative analysis of fibre structure - Comparative analysis of material absorption - Physical and mechanical properties |
| En ligne : |
https://drive.google.com/file/d/1fWXV_gFDpCuo_8qyAos2OO1Try0iHAA9/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31789 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 103, N° 1 (01-02/2019) . - p. 21-27
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