| Titre : |
Study of the biodegradability of leather tanned with sodium aluminosilicate |
| Type de document : |
texte imprimé |
| Auteurs : |
Salvador Esquerra-Resa, Auteur ; Salvador Esquerra-Dot, Auteur ; Alejandro Garcia, Auteur ; Angels Moreno, Auteur ; Teresa Mir, Auteur ; Anna Bacardit, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 251-261 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Alumino-silicate de sodium
Cuirs et peaux -- Biodégradation
Cuirs et peaux de bovins
Cuirs et peaux de moutons
Essais (technologie)
Formulation (Génie chimique)
Maroquinerie
Retannage
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminium
Tannage végétal
Tige de la chaussure
Zéolites
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The leather industry transforms raw hides into leather by mechanical and chemical processes. The main chemical process is the tanning in which the fibers are stabilized and cannot putrefy. To this end, different chemicals can be used that are capable of forming crosslinkages between collagen molecules. In this sense, the most used products are: chromium salts, aluminum, vegetable tannins, synthetics, aldehydes, resins and silicates. In this work, a new biodegradable tanning process based on zeolites was studied in two steps. In the first one, a tanning process for sheepskins and cow hides was developed. In the second one, three types of retanning process to obtain shoe upper, vegetable and leather goods were studied. This new system allows to obtain leather that can decompose naturally in a relative short period of time. Leather tanned with this system shows similar values to the biodegradability of pure collagen.
Specifically, with the retanning system used for shoe upper allows to obtain a 74.4% relative biodegradability compared to pure collagen. |
| Note de contenu : |
- MATERIALS AND METHODS : Zeolites tanning process - Study of three types of retanning for the new tanning system
- RESULTS : Zeolites tanning process - Study of three types of retanning for the new tanning system
- Table 1 : Sheep skin tanning formulation
- Table 2 : Cow hide tanning formulation
- Table 3 : vegetable retanning formulation
- Table 4 : Leather goods retanning formulation
- Table 5 : Shoe upper retanning formulation
- Table 6 : Physical and chemical tests results for vegetable
- Table 7 : Physical and chemical tests results for shoe upper
- Table 8 : Physical and chemical tests results for leather goods
- Table 9 : Carbon content
- Table 10 : Percentage of theoretical aerobic biodegradability
- Table 11 : Percentage relative biodegradability |
| DOI : |
https://doi.org/10.34314/jalca.v117i6.4966 |
| En ligne : |
https://drive.google.com/file/d/1p5bnqsaxUqqhwhynwdWcfrEwRqUl1ZDs/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37800 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVII, N° 6 (06/2022) . - p. 251-261
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Study of the biodegradability of leather tanned with sodium aluminosilicate in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 6 (06/2022)
