An acoustic emission study of staking and fatliquor / Paul L. Kronick in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVIII, N° 5 (05/1993)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVIII, N° 5 (05/1993) . - p. 178-186 Titre : An acoustic emission study of staking and fatliquor Type de document : texte imprimé Auteurs : Paul L. Kronick, Auteur ; Angela R. Page, Auteur ; Michael Komanowsky, Auteur Année de publication : 1993 Article en page(s) : p. 178-186 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The chemical treatment leather with fatliquor and physical treatment of staking produce similar esthetic results. The effects of two such different treatments on the structure of the leather, however, and perhaps various other responses to deformation, are expected to be different. The equivalence of fatliquoring and staking were investigated by comparing the effects of the treatments on the stress-strain curves and the acoustic emission observed during tensile testing. It was found that staking affects only the first 25% of the elongation at break, lowering the initial modulus, while fatliquors affect the whole stress-strain curve. The initial part becomes concave upward instead of downward, and the elongation and stress at failure are greater. Acoustic emission from leather that was merely staked was suppressed only at small elongations, while it was smaller at all elongations from leather that had fatliquor. The results are shown to be consistent with a domain model of deformation. A nondestructive determination of the elongation of leather at tensile failure, based on acoustic emission, is derived from the observations. En ligne : https://drive.google.com/file/d/1acPb-zGosPTkzcjRITP7l0fIO4IRI0Bj/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8230 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006906	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Recovery of properties of staked leather on storage / Paul L. Kronick in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXXI, N° 2 (02/1996)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXXI, N° 2 (02/1996) . - p. 39-46 Titre : Recovery of properties of staked leather on storage Type de document : texte imprimé Auteurs : Paul L. Kronick, Auteur ; Angela R. Page, Auteur Année de publication : 1996 Article en page(s) : p. 39-46 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Staking is carried out by repeatedly stretching leather by small amouts. We have investigated the machanisme and reversibility of staking by measuring the emission of acoustic signals while leather was repeatedly stretched at different humidities. The first stretch was accompanied by the largest number of acoustic pulses, the acoustic emission accompanying the succeeding ones being reduced by almost 90%, and the leather was softer (modulus was decreased) after the first stretch. The most significant finding was that, when the stretched leather was stored for three months, its acoustic emissions and stiffness recovered. This means that staking, unlike fatliquor-softening, is not a permanent treatment if the leather is maintained in a dry environment, such as that found indoors in northern climates in winter. En ligne : https://drive.google.com/file/d/19NJcN5HMy1_ts9MfD5aIUYLJ9-TbgfUg/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7829 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006941	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)