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Effect of finishing density on the physico-mechanical properties of leather / Sevgi Nalbat in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 2 (03-04/2016)
[article]
Titre : Effect of finishing density on the physico-mechanical properties of leather Type de document : texte imprimé Auteurs : Sevgi Nalbat, Auteur ; Ersin Onem, Auteur ; Bahri Basaran, Auteur ; Ali Yorgancioglu, Auteur ; Onur Yilmaz, Auteur Année de publication : 2016 Article en page(s) : p. 84-89 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aniline
Cuirs et peaux -- Finition
Cuirs et peaux -- Propriétés mécaniques
Déchirure (mécanique)
Densité
Essais dynamiques
Statistique
Traction (mécanique)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Finishing is the process in which a polymeric coating is applied in order to improve the appearance and resistance of leather products. The applications at this stage greatly affect the use and appeal of the final products. In this study, the effect of different coating compositions on the physico-mechanical properties of leather was investigated. For this purpose, three different types of finishing formulations including semi-aniline, lightly pigmented and opaque finishes having different covering powers rated from light to heavy, respectively, were applied to the leathers and results were compared with uncoated counterparts. The findings of the study revealed that the application of lightly pigmented finishing statistically increased the tensile strength, single and double edge tear loads, and stitch tear resistance of the leather to a large extent. Semi-aniline and opaque finishing gave lower or, in some cases, statistically insignificant increases in the physico-mechanical properties of the leathers. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Application of finishing solutions - Conditioning and sampling of manufactured leathers - Physical tests - Statistical analysis
- RESULTS AND DISCUSSIONS : Tensile strength and percentage extension - Single and double edge tear loads - Stitch tear resistance - Extension setEn ligne : https://drive.google.com/file/d/16jPINv3-G7hC6KTY0YoHzk4qgPUaS2Kb/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26092
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 100, N° 2 (03-04/2016) . - p. 84-89[article]Réservation
Réserver ce documentA study of the realistic strength of leather : true stress / Bahri Basaran in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 10 (10/2012)
[article]
Titre : A study of the realistic strength of leather : true stress Type de document : texte imprimé Auteurs : Bahri Basaran, Auteur ; Sevgi Nalbat, Auteur Année de publication : 2012 Article en page(s) : p. 342-347 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Contraintes (mécanique)
Cuirs et peaux -- Propriétés mécaniques
Duncan, Test de
Durée de vie (Ingénierie)
Essais dynamiques
Maroquinerie
Traction (mécanique)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Strength deals with the durability of materials during usage and therefore is an important criterion for performance evaluation. Leather goods, which continue to be preferred by many over artificial substitutes, need to exhibit durable material performance. Strength testing, as related to an understanding of the endurance against force, is an important component of overall material behavior. Therefore, tensile testing should be well developed so as to analyze the properties of finished leathers and acquire realistic practical data. This study deals, in detail, with the evaluation of tensile properties considering the differences between engineering stress and true stress. In this examination of tensile behaviors three groups of garment leathers with different finishes (aniline, semi-aniline, and full pigmented finishes) were used. The samples were evaluated comparing engineering stress and true stress. In a Completely Randomized Design study, the statistical differences were calculated by the Duncan test in the level of P≤0.05. Thereby, statistically significant differences between engineering stress and true stress between each of the three groups was verified. Note de contenu : - Table I : Tensile strength properties of finished leathers
- Table II : The results of the statistical analyses obtained from the Duncan test with a significance level of P≤0.05Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15936
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVII, N° 10 (10/2012) . - p. 342-347[article]Réservation
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