Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
[article]
Titre : By-product beneficiation Type de document : texte imprimé Auteurs : Karl Flowers, Auteur Année de publication : 2020 Article en page(s) : p. 34-37 Langues : Anglais (eng) Catégories : Cuirs et peaux -- Déchets -- Recyclage
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Récupération (Déchets, etc.)
Refente sur chauxIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In the waste hierarchy, avoidance and minimisation sit at the apex and shoulc form the oasis of waste management. Closely following avoidance and minimisation, the recovery and re-use parts of waste management are also pivotal. Note de contenu : - Mass balance
- Markets and being more than a tanner
- Efficiency models
- Fig. 1 : The manufacturing process showing inputs and outputs (including by-products)
- Fig. 2 : Lime splitting
- Fig. 3 : Buffing dust creation
- Fig. 4 : Trimming cuts of material to produce a regular shaped leather
- Table 1 : Solid waste per tonne of wet-salted material and -500 kg chemicals input
- Table 2 : Chemical efficiency per tonne of wet-salted materialEn ligne : https://drive.google.com/file/d/1psAfkzv1MXpbxIP_7dI4zogRNiINCy-a/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34804
in INTERNATIONAL LEATHER MAKER (ILM) > N° 44 (11-12/2020) . - p. 34-37[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 22384 - Périodique Bibliothèque principale Documentaires Disponible A new concept of pretanning without chrome / Marcel Siegler in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXIV (Année 1979)
[article]
Titre : A new concept of pretanning without chrome Type de document : texte imprimé Auteurs : Marcel Siegler, Auteur Année de publication : 1979 Article en page(s) : p. 288-300 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Chaux
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 -- Propriétés physiques
Fleur du cuir
Prétannage sans chrome
Refente sur chaux
Stratigraphie
Température de retraitIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The manufacture of grain and split leather is simplified by pretanning cattle hides, either after bating or during pickling, with a chromium-free tanning agent until the shrinkage temperature reaches between 170° and 185°F. The pretanned hide is then split to provide a grain and a split intermediate, then these components are shaved and tanned. The entire hide treatment sequence can be effected in two stages : first, beaming, lime fleshing (if necessary), bating, and pretanning before or during pickling ; second, wringing, splitting, sorting, and shaving. The tanning is done after shaving in the the second stage and is followed by coloring and fatliquoring. The resulting chrome-tanned leather has very good physical properties, good fullness, and produces a higher area yield.
The pretanned splits can be sorted and shaved for different types of leather, such as vegetable tan, chrome-vegetable tan, etc., and thus be increased in their value.
The shavings contain no chromium and very littls salt. Hence they have many moreuses, or they can be disposed of by dumping without significant environmental impact.
Much less chrome is needed to tan the leather because the tanning chemicals are used only on the shaved weight. Also, there is less spent chrome to be recycled and reused. The spent liquor can be used either as the float for a new batch of grains or for tanning the splits.Note de contenu : - Table 1 : Shrinkage temperatures at various stages of pretanning process
- Table 2 : Take-up of the pretanning product with time of tanning
- Table 3 : Chrome distribution by stratigraphic test regular tanning process - Split in blue versus seton special process (SSP)
- Table 4 : Comparison of the physical properties of crust leathers derived from hides processed by lime splitting,blue splitting, and the SSP pretanning process
- SSP pretanning procedure on regular delimed stock
- SSP pretanning procedure on completely delimed stock
- Tanning procedure for the grains
- Physical properties of SSP leathersEn ligne : https://drive.google.com/file/d/1ww_q_dWcvIGk6Usu7pBqWdiTGV_Undii/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37222
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXIV (Année 1979) . - p. 288-300[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008512 - Périodique Archives Documentaires Exclu du prêt
[article]
Titre : Section rollers for lime splitting Type de document : texte imprimé Année de publication : 2001 Article en page(s) : p. 89-94 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Appareils et matériels
Cylindre à bagues
Refente sur chauxIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In comparaison to other leather processing equipment, the lime spilling machine requires the greatest amount of operator skill and experience. However, technological advancements in CAD software, machine tools, and manufacturing processes have precipitated improvements in section roller design and construction. V. Mance Manufacturing (VMM) has developed a new continuous "self cleasing" ring roller assembly that facilitates transport of wet and greasy pelts through the splitting machine "pressure zone". The Pro-Split ring roller assembly mnimises lime splitting problems attributable to section roller design, construction and maintenance. This article explains the advent of the ring roller assembly in leather splitting equipment and describes in detail the evolution of section roller design and construction. Note de contenu : - Basic principles of lime splitting
- Ring roller assembly selection for lime splitting
- Accumulation of solid lime within ring roller assembly
- Self-cleasing ring roller assemblies
- A final word on technology adoptionEn ligne : https://drive.google.com/file/d/1X2Yyq5Rrb6H-822bo1qy3jM9dhvpDK6d/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32161
in WORLD LEATHER > Vol. 14, N° 2 (04/2001) . - p. 89-94[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 006170 - Périodique Bibliothèque principale Documentaires Disponible