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Base line : amphoteric implications / Olga Ballùs in LEATHER INTERNATIONAL, Vol. 217, N° 4861 (06/2016)  

[article]  inLEATHER INTERNATIONAL > Vol. 217, N° 4861 (06/2016) . - p. 18-23 Titre : Base line : amphoteric implications Type de document : texte imprimé Auteurs : Olga Ballùs, Auteur ; Ramón Palop, Auteur ; Llorenç Noguera, Auteur ; Ricardo Micó, Auteur Année de publication : 2016 Article en page(s) : p. 18-23 Langues : Anglais (eng) Catégories : Couleur Cuirs et peaux -- Propriétés mécaniques Dihydroxydiphenyl sulfone Retannage Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Amphoteric retanning agent AFF imparts very good fullness without hardening the leather. When a Sulf base is added with reagent groups that give it an amphoteric nature AFF, colour depth is increased and colour levelling is improved. When a SULF base is added with reagent groups that give it an amphoteric nature AFF, grain fineness is dramatically increased. The best results in physical resistance are obtained with amphoteric protein PROT. Note de contenu : - A two-part project - Degre of softness - Thickness - Tear load - Tensile strength - Color depth - FIGURES : 1. Property assessment diagram - 2. Variation in and optimisation of the degree of softness - 3. Variation in an optimisation of the degree of thickness - 4. Variation in and optimisation of tear load - 5. Variation in and optimisation of tensile strength - 6. Variation in and optimisation of colour depth - 7. Variation in and optimisation of colour levelling - Colour levelling - Grain burst - Grain fineness En ligne : https://drive.google.com/file/d/1oyqREZmsGVEwcY5-lpuF6Cxyri8c8O1Q/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26710 [article]

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Zero hour / Andrew Hudson in LEATHER INTERNATIONAL, Vol. 217, N° 4861 (06/2016)  

[article]  inLEATHER INTERNATIONAL > Vol. 217, N° 4861 (06/2016) . - p. 34-36 Titre : Zero hour Type de document : texte imprimé Auteurs : Andrew Hudson, Auteur Année de publication : 2016 Article en page(s) : p. 34-36 Langues : Anglais (eng) Catégories : Approvisionnement dans l'entreprise Chaine logistique Cuirs et peaux Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Hot on the heels of The Zero Discharge of Hazardous Chemicals campaign, Dr. Andrew Hudson, global technical manager at SGS, talks to Christian Doherty about his effort to improve the effectiveness and sustainability of the global leather supply chain. Note de contenu : - Leaky discharge - Chemical issues - Costs and testing - Control issues En ligne : https://drive.google.com/file/d/1RsrvYci5zgpdk9Bh786svhzdbXDzw5j0/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26711 [article]

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The soft sell / Patricia Casey in LEATHER INTERNATIONAL, Vol. 217, N° 4861 (06/2016)  

[article]  inLEATHER INTERNATIONAL > Vol. 217, N° 4861 (06/2016) . - p. 39--41 Titre : The soft sell Type de document : texte imprimé Auteurs : Patricia Casey, Auteur ; Nicolàs Delgado, Auteur ; Silvia Metz, Auteur ; Leonardo Pileggi, Auteur Année de publication : 2016 Article en page(s) : p. 39--41 Langues : Anglais (eng) Catégories : Cuir dans les automobiles Cuirs et peaux -- Propriétés mécaniques Cuirs et peaux -- Propriétés physiques Douceur (toucher) Sellerie Sièges Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Importance on the relationship between softness and directionality of physical properties on leather for automotive upholstery. The interiors of high-quality cars are characterised by having a sophisticated design, sometimes minimalist, but very demanding. The seats of an automobile are important to secure comfort and safety to the driver and other passengers. Not only are colour, feel and the overall aesthetic of the seat important, but equally so is the comfort. If the seats fail, the travel experience can be unpleasant. An improper seat leads to greater fatigue and back pain. Leather is the material preferred for upholstering the interior of high-quality cars and, it being a natural product, faces demanding challenges to adapt it to the range that each automotive terminal applies. Often, companies engaged in cutting, sewing and assembling car-seat covers raise claims against leather suppliers because of defects such as : - wrinkles that, when the cover is manufactured for the seat or the headrest, appear on some identical parts but not on others - parts that, when sewn, stretch and deform, not returning to their original size or aspect - covers of which the pieces are cut from the same lot of leather and when placed on the seat, show unwanted wrinkles or look distorted. Each automotive terminal issues technical specification of which the purpose is to ensure the consistent quality of the leather to be processed, while considering the influence of physical, chemical and organoleptic properties during the stages of manufacture This article describes the relationship between the softness of the leather, measured by different methods and directionality of physical properties, and the influence they have to obtain a defect-free product. Note de contenu : - Leather as the material of choice - Topographical distribution leather physical properties - Description of the test methods - Determination of the most favourable leather zone and direction - FIGURES : 1. Average of softness and bending length results on each leather zone - 2. Correlation diagram between softness and bending length results - 3. Results of bending length - cantilever (mm) - 4. Histogram of bending length measurements (mm) - TABLES : 1. Softness and bending length results on each leather zone and each hide (mm) - 2. Results of statistic and permanent elongation En ligne : https://drive.google.com/file/d/1y1Y85oqFlnJQ5KqnmKJBAWxkOn1S0YI7/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26712 [article]

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