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Mention de date : 02/1996
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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)
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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 : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7829
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXXI, N° 2 (02/1996) . - p. 39-46[article]Réservation
Réserver ce documentThe impact of halophilic organisms on the grain quality of brine cured hides / David G. Bailey in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXXI, N° 2 (02/1996)
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Titre : The impact of halophilic organisms on the grain quality of brine cured hides Type de document : texte imprimé Auteurs : David G. Bailey, Auteur ; Meral Birbir, Auteur Année de publication : 1996 Article en page(s) : p. 47-51 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Halophilic organisms have long been thought to be associated with reduced grain quality of brine cured cattle hides. However, a direct correlation of the presence of halophiles and damage to surface of grain has not been previously reported. In this research, a fresh cattle hide was cured in saturated brine to which an innoculum of several isolates of extremely halophilic organisms were added. These halophilic organisms were previously isolated from commercially brine-cured hides. After curing, samples prepared from the hide were stored at three different temperatures, 39°F, 70°F and 106°F. Half of the samples were tanned after four weeks of storage and the remainder of the samples were tanned after seven weeks. Physical testing showed that there was no difference in physical strength between the inoculated and uninoculated samples. Grain damage was observed visually in the samples held for seven weeks at 106°F. Scanning electron micrographs clearly show the nature of this damage. En ligne : https://drive.google.com/file/d/1qFhgFTIvn4CZfLXKUrx4LeSNHvFMbtVo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7830
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXXI, N° 2 (02/1996) . - p. 47-51[article]Réservation
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