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A systematic study on the role of chilling temperatures on the curing efficacy of hides and skins / Chandra Babu Narasimhan Kannan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 11 (11/2012)
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Titre : A systematic study on the role of chilling temperatures on the curing efficacy of hides and skins Type de document : texte imprimé Auteurs : Chandra Babu Narasimhan Kannan, Auteur ; R. Karthikeyan, Auteur Année de publication : 2012 Article en page(s) : p. 362-374 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuirs et peaux -- Analyse
Cuirs et peaux -- Conservation
Entreposage frigorifiqueIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Chilling is considered an alternative curing method for salt-free short-term preservation of hides and skins, but no systematic studies has been carried out with this method. In the present study, an attempt was made to investigate the role of chilling temperatures on the preservation efficacy. The experiments were done in a cold temperature cabinet using goat skins and cow hides. The samples of the hides and skins, chilled to different temperatures, were analyzed for the bacterial count, soluble nitrogen and hydroxyproline. The data suggested that 4oC is the optimum temperature for 7 days storage. The results of the chilling profile study indicate the need for a blast chiller to chill down to the target temperature in less than 2 hours in order to minimize the chance for bacterial damage. The optical microscopic studies of the chilled hides and skins at different temperatures show that the fiber compaction increases with the decrease in temperature compared to the skins preserved with common salt. The leathers produced had also the required qualities and strength properties to fulfill the trade requirements as evidenced from the organoleptic assessment, physical testing and scanning electron microscopic studies. Note de contenu : - MATERIALS AND METHODS : Effect of chilling temperature on the curing efficacy - Determination of bacterial count - Determination of soluble nitrogen content in chilled hides and skins - Determination of soluble hydroxyproline content in chilled hides and skins - Determination of shrinkage temperature - Histological studies on chilled hides and skins - Processing of chilled hides and skins into leathers - SEM studies on leathers - Physical testing and organoleptic assessment of the leathers
- RESULTS AND DISCUSSION : Assessment of curing efficacy of chilling method - Subjective assessment of preserved hides and skins - Soluble nitrogen and hydroxyproline contents in the hides and skins - Assessment of curing efficacy by bacterial count - The effect of chilling on the hydrothermal stability - Chilling and warming (natural) profiles of cow sides for different temperatures - Histological studies on chilled skins and sides - Effect of chilling on the fiber structure of leather - Effect of chilling method on the quality of the leathersEn ligne : https://drive.google.com/file/d/1msBbK3ax-I30R0ID6kmQxHzQDixkqLmZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16520
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVII, N° 11 (11/2012) . - p. 362-374[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14323 - Périodique Bibliothèque principale Documentaires Disponible Temporary preservation of hides using boric acid / I. R. Hughes in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 58 (Année 1974)
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Titre : Temporary preservation of hides using boric acid Type de document : texte imprimé Auteurs : I. R. Hughes, Auteur Année de publication : 1974 Article en page(s) : p. 100-103 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Borique, Acide
Cuirs et peaux -- ConservationIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The use of boric acid for temporary preservation of hides has been investigated. Cuttings, soaked for 15 min in saturated boric acid solution, were stored for five days at 30°c before attaining a volatile to total nitrogen ratio of 1%. Untreated cuttings attained this value in two days. In a laboratory experiment a boric acid bath was used 50 times without losing effectiveness. In a pilot scale experiment nine batches of hides, totalling 3100 kg, were soaked and stored for up to 29 days at 14°c. Leather from the boric acid treated, green and wet salted hides did not differ significantly in appearance or physical properties. Note de contenu : - Figure : Frozen section of ox hide 22 days after boric acid treatment. X 50, stained azure A. The epidermis is adherent and the hair tight
- Table 1 : Boric acid contents and storage lives of hide pieces soaked for different times
- Table 2 : Boric acid contents and storage lives of hide pieces soaked consecutively for 15 minEn ligne : https://drive.google.com/file/d/1TWxVhJrvr2X6pGgoJKjBeJ0JuqUQPYdj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35485
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 58 (Année 1974) . - p. 100-103[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008594 - Périodique Archives Documentaires Exclu du prêt Test d'agents antifongiques sur bovins wet-blue et BSH / Gérard Gavend / Lyon : Centre Technique Cuir, chaussure, maroquinerie (CTC) (1990)
Titre : Test d'agents antifongiques sur bovins wet-blue et BSH Type de document : texte imprimé Auteurs : Gérard Gavend, Auteur ; Claude Rabbia, Auteur Editeur : Lyon : Centre Technique Cuir, chaussure, maroquinerie (CTC) Année de publication : 1990 Importance : 33 p. Présentation : ill. Format : 30 cm Note générale : Annexe Catégories : Antifongiques
Cuirs et peaux -- Conservation
Essais (technologie)
Wet-blue (tannage)Peau tannée au chrome (le chrome donne une couleur bleue)
Wet-white (tannage)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Souhaitée par l'ensemble des professionnels amenés à être confrontés aux problèmes liés à la fabrication, au stockage et à la commercialisation de peaux conditionnées sous forme de blanc stabilisé humide (BSH) ou de wet-blue (WB), cette étude a eu pour but essentiel de tester à travers un plan d'expérience bien établi (méthodologie et application) des agents antifongiques se présentant sous la forme de produits commerciaux bien définis et utilisés selon un mode opératoire précis, délivrés, en connaissance de causes, par les fournisseurs. Note de contenu : 1. ORGANISATION DE L'ETUDE : Mise en place d'un protocole d'étude - Envoi du cahier des charges de l'étude aux fournisseurs de produits - Réception des envois fournisseurs et contrôle de leur conformité - Essai d'application et de stockage sur wet-blue - Essai d'application et de stockage sur wet-white (BSH)
2. DESCRIPTION ET CONDUITE DES ESSAIS : Liste des produits testés - Préparation des wet-blue - Préparation des wet-white (BSH)
3. RESULTATS OBTENUS : Evolution des wet-blue en cours de stockage - Evolution des wet-white en cours de stockage - Intégration d'autres critères
4. SYNTHESE DE L'ENSEMBLE DES RESULTATS DE L'ETUDE : Cas du traitement du wet-blue - Cas du traitement du wet-white (BSH)
5. ANNEXE TECHNIQUE : Fiches sécurité et technique des produitsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18759 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15164 675 TES Monographie Bibliothèque principale Documentaires Disponible 15163 675 TES Monographie Bibliothèque principale Documentaires Disponible The durability of antimicrobial effect of leathers finished with oregano oil / Elzbieta Bielak in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 11 (11/2017)
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Titre : The durability of antimicrobial effect of leathers finished with oregano oil Type de document : texte imprimé Auteurs : Elzbieta Bielak, Auteur ; Ewa Marcinkowska, Auteur ; Justyna Sygula-Cholewinska, Auteur Année de publication : 2017 Article en page(s) : p. 377-386 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Cuirs et peaux -- Conservation
Huile essentielle d'origanIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Essential oils introduced into raw materials in the technological process enable leather to gain antimicrobial properties. These properties were examined toward microorganisms potentially pathogenic to humans and causing biodegradation of leather. The article presents an assessment of antimicrobial activity of cowhide lining leathers fatliquored with the addition of oregano oil at concentrations of 1% and 3% per leather weight after one month storage. Additionally, the durability of this activity for leathers with oregano oil at concentration of 3% was confirmed after 12 months. Antimicrobial effect was tested according to PN-EN ISO 20645:2006 Textile fabrics – Determination of Antibacterial Activity – Agar Diffusion Plate Test. Furthermore, to verify the results of antimicrobial durability of leathers within one year after fatliquoring, the method according to ISO 22196:2011 Measurement of antibacterial activity on plastics and other non-porous surfaces was used.
Antimicrobial effect of finished leathers against bacteria Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, yeast Candida albicans and filamentous fungus Scopulariopsis brevicaulis was tested. The obtained results indicated that lining leathers enriched with oregano oil at concentration of 3% per leather weight is characterized by its good and durable antimicrobial effect persisting even one year after adding oil into leather. The results presented in this paper is a continuation of previous studies on animal leather enriching with essential oils.Note de contenu : - Table 1. Antibacterial effect of the antibacterial treatment
- Table 2. Assessment schematic for the growth of filamentous fungi on the agar
- Table 3. As assessment of antimicrobial effect of leathres fatliquored with the addition of oregano oil at concentrations of 1% and 3% per leather weight after 1 and 12 months of storage
- Table 4. Antibacterial activity of the lining leather fatliquored with oregano oil at amount of 3% (per leather weight) to escherichia coli
- Table 5. Antibacterial activity of the lining leather fatliquored with oregano oil at amount of 3% (per leather weight) to staphylococcus aureusEn ligne : https://drive.google.com/file/d/1eKCDCNYAaGeqXsFlouaNU1H2fAQ01Cri/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29396
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 11 (11/2017) . - p. 377-386[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19363 - Périodique Bibliothèque principale Documentaires Disponible The effect of preservation by freezing on the strength of kangaroo leathers / L. J. Stephens in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)
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Titre : The effect of preservation by freezing on the strength of kangaroo leathers Type de document : texte imprimé Auteurs : L. J. Stephens, Auteur Année de publication : 1987 Article en page(s) : p. 45-49 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Congélation
Cuirs et peaux -- Conservation
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de kangourous
Traction (mécanique)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Processors suspected that kangaroo skins preserved by freezing gave weaker, flatter leather tha similar salt preserved skins. Studies of hair-on and unhaired matchedsides have been completed to compare these preservation methods. After comparison of tensile strength, elongation at break and thickness measurements of each matching side it was concluded that preservation by freezing rather than salting had caused no deleterious effect on these properties. Previous reports of inferior leather from such skins could be attributed to difficulties in thawing large amounts of frozen skins. The convenience offered by freezing skins at the point of take-off would therefore make this a useful alternate preservation method. En ligne : https://drive.google.com/file/d/1WgV-08c50_j_PGuSWF52PIlgGct2SjN5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8969
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Code-barres Cote Support Localisation Section Disponibilité 008087 - Périodique Bibliothèque principale Documentaires Disponible The effects of alternating and direct electric currents on moderately halohilic bacteria in leather industry / Pinar Caglayan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 6 (11-12/2016)
PermalinkThe evaluation of DBD plasma technique for removing carbon stain from leather artifacts / Muhammad El-Qubaisy in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 4 (07-08/2018)
PermalinkPermalinkThe multiple facets of leather / Marie-Noëlle de Cagny / Lyon : Centre Technique Cuir, chaussure, maroquinerie (CTC) (2012)
PermalinkThe practical evaluation of fungicides / Amanda Bugby in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. N° 71 (Année 1987)
PermalinkThe recycling of silicofluoride and boric acid liquors for hide preservation / J. C. Barrett in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 68 (Année 1984)
PermalinkTreatment using both direct and alternating electric currents on hide Bacteria in brine curing and pre-soaking liquors / Yasar Birbir in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 2 (03-04/2014)
PermalinkUsing a mobile chiller for hides : a green method to resolve the TDS problem / Chandra Babu Narasimhan Kannan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 5 (09-10/2012)
PermalinkVieillissement du collagène pendant la conservation et le stockage des peaux / Wiktor Pietrzykowski in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXVI (Année 1974)
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