[article]
| Titre : |
Effect of fatliquoring on leather comfort. Part III : Moisture absorption-desorption of leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Albert M. Manich, Auteur ; Joan Barenys, Auteur ; L. Martinez, Auteur ; J. Lloria, Auteur ; Josep Carilla, Auteur ; Agusti Marsal, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 347-355 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Absorption
Désorption
Huiles et graisses
Humidité
Produits de nourriture du cuir
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The comfort of tanned hide/skin is an added value, which is decisive for the choice of leather in articles for footwear or clothing, compared to other alternatives whose design excludes this component. This comfort is related to the capacity of absorption and desorption of moisture and with the physical, mechanical and organoleptic characteristics of the leather. After tanning, fatliquoring and retanning are the operations that more intensively modify the characteristics of leather articles.
This work is a continuation of two previous ones that have studied the influence of fatliquoring on softness and compressibility of leather and on grain and corium quality of leather assessed by ball bursting and tearing tests. In this case, the effect of fatliquoring on moisture absorption-desorption characteristics of leather is studied. The experimental work has been carried out in the pilot plant of Trumpler Española S. A. and the moisture absorption-desorption tests in the Laboratory of Thermal Analysis and Calorimetry of the IQAC. The behavior of non-fatliquored leather and that of leather fatliquored with a combination of sulphited triglycerides of colza oil and fatty polymer (TCSi/PGR) or fatliquored separately with their components TCSi and PGR, or with phosphoric ester ESF or sulphited fish oil Psi has been determined.
The determination of the size of the moisture absorbing monolayer (Xm), the binding energy constants of the monolayer C and the multilayer K, the maximum absorption capacity at saturation X1 and the hysteresis (Hyst.) between absorption and desorption, enabled us to classify the different fatliquoring agents according to stage (crust-blue, finished-red) by applying factorial analysis (see following graph). Finishing is the factor that best explains this behavior. Finishing decreases the size of the monolayer and increases the binding energy constants. Fatliquoring decreases the maximum absorption capacity and hysteresis, partially affecting the reduction of the monolayer size. |
| Note de contenu : |
- INTRODUCTION : Absorption isotherms - Objective
- METHODS : Calculation of absorption and desorption isotherms - Specific surface of absorption - Hysteresis
- DISCUSSION : Monolayer size - Binding energy constant of the monolayer - Binding energy constant of the multilayer - Average hysteresis and maximum absorption capacity at saturation - Size of the absorption monolayer and apparent density - Ration between monolayer size estimations in desorption and absorption, and the mean hysteresis - Relationship between moisture absorption/desorption characteristics and tearing energy |
| En ligne : |
https://drive.google.com/file/d/1YhPToI0K4j6ES-VmHsYYK5P_PJn--Rx1/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29249 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 10 (10/2017) . - p. 347-355
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Effect of fatliquoring on leather comfort. Part III : Moisture absorption-desorption of leather in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 10 (10/2017)
