| Titre : |
Investigation of the influence of tanning fatliquoring preparations on collagen by infrared spectroscopy |
| Type de document : |
texte imprimé |
| Auteurs : |
Anita Przepiórkowska, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 143-147 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorants
Composés chimiques bi-fonctionnels
Cuirs et peaux -- Teinture
Cuirs et peaux de veaux
Huiles et graisses
Produits de nourriture du cuir
Tannage
Tannage au chrome
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
A topic of our investigative works for several years has been simultaneous compact tanning and fatliquoring using compounds possessing the dual functions of tanning and fatliquoring of skins and hides in one single operation. Material for uppers such as calf, bovine, pig and rabbit skins tanned and fatliquored by means of the aforementioned operations possesses good hydrothermal (Ts) properties and have a soft and full handle. The surface of compact tanned skins has a positive electrical charge but its magnitude is lower than in case of classically chrome tanned material. A higher degree of masking of the chrome (III) complexes by organic ligands in the compact tanned skins permits us to obtain better and deeper penetration of dyestuffs in garment leathers.
It has been shown that the introduction of the combined bifunctional tanning agent (i.e. tanning agents chemically bound with fatliquoring compounds) into the skin tissue produces leather containing 5.4% to 6.1% non-extractable fat. The introduction of such bifunctional compounds into the skin during tanning gives the leather desirable properties such as resistance to aqueous and organic solvent based cleaning agents such as are commonly used to clean leather garments.
Based on the results of the investigations into compact and simultaneous tanning and fatliquoring processes we appear to be dealing with quite a different process mechanism from that applicable to clasical tanning and fatliquoring.
The aim of this study is to investigate by infrared spectroscopy the mutual influence of model preparations and tanning- fatliquoring compounds on the one hand on gelatine (which could be considered as a model of skin tissue) and calf skin on the other. |
| En ligne : |
https://drive.google.com/file/d/11mIMMOVCX_T6cfGwTltc_r4Q1MesGDWt/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39903 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 86, N° 4 (07-08/2002) . - p. 143-147
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Investigation of the influence of tanning fatliquoring preparations on collagen by infrared spectroscopy in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 4 (07-08/2002)
