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675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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The impact of aqueous polyurethanes on leather-finishing technology / F. A . P. Pulles in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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Titre : The impact of aqueous polyurethanes on leather-finishing technology Type de document : texte imprimé Auteurs : F. A . P. Pulles, Auteur Année de publication : 1990 Article en page(s) : p. 234-241 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The recent history of polyurethane finishing is reviewed, followed by a description of recent improvements in such resins. Examples are given of typical formulations for the application of polyurethane finishes in achieving specific properties in the finished leather, with special consideration of their new importance as water-based components of leather-finishing systems. En ligne : https://drive.google.com/file/d/1ubuMCTMbgS6XZaGfMyO5yjFTH5PTYbjM/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8684
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXV (Année 1990) . - p. 234-241[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008090 - Périodique Bibliothèque principale Documentaires Disponible The impact of disease developments on trade in livestock products / Leonard W. Condon in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 9 (09/2001)
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Titre : The impact of disease developments on trade in livestock products Type de document : texte imprimé Auteurs : Leonard W. Condon, Auteur Année de publication : 2001 Article en page(s) : p. 350-356 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure En ligne : https://drive.google.com/file/d/1lHvMK_QmeajHs1ZVONqHVEqN13xKinKy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4366
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVI, N° 9 (09/2001) . - p. 350-356[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001566 - Périodique Bibliothèque principale Documentaires Disponible The impact of milling on leather properties and fatliquor distribution / Richard L. Edmonds in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
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Titre : The impact of milling on leather properties and fatliquor distribution Type de document : texte imprimé Auteurs : Richard L. Edmonds, Auteur ; Adriano Peruzzi, Auteur ; Sue M. Cooper, Auteur Année de publication : 2017 Article en page(s) : p. 312-317 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Croûte (cuir) On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Analyse
Cuirs et peaux -- Teneur en matières grasses
Douceur (toucher)
Echantillonnage
Epaisseur -- Mesure
Fragmentation
Lipides
Produits de nourriture du cuir
Résistance à la déchirureIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather samples were produced With five different types of fatliquor and were treated with a standard milling process. The leathers were assessed before and after milling for strength and softness using standard rnethods and fatliquor distribution was analysed. Milling was pound to increase softness and thickness, and increased the strength of the leather for four of the five different fatliquored samples. The fatliquor distribution was determined using a novel technique where image analysis of a series of photomicrographs of cross sections stained with Sudan III/IV was carried out. It was found that
different fatliquors were distributed slightly differently in the leathers. There were peaks of fat in the grain and lower corium with much less in the upper corium. When the fatliquored crust leather was milled the overall distribution of fat through the cross section remained unchanged indicating that changes in physical properties brought about by milling were not the result of bulk fatliquor redistribution.Note de contenu : - MATERIALS AND METHODS : Leather preparation - Physical testing - Staining procedure - Microscope image analysis
- RESULTS AND DISCUSSION : Absolute fat content - Tear strength, thickness and softness - Redistribution of fat with mechanical actionEn ligne : https://drive.google.com/file/d/1d5JimwdFOymORe-NiEQi18bf2LpHzaME/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29671
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 6 (11-12/2017) . - p. 312-317[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19446 - Périodique Bibliothèque principale Documentaires Disponible The impact of proteases on elastin in leather manufacture / Xu Bingbin in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 3 (05-06/2012)
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Titre : The impact of proteases on elastin in leather manufacture Type de document : texte imprimé Auteurs : Xu Bingbin, Auteur ; Li Chengxia, Auteur ; Wang Ranran, Auteur ; Chunxiao Zhang, Auteur ; Biyu Peng, Auteur Année de publication : 2012 Article en page(s) : p. 100-105 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux
Elastine
PeptidasesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In recent years, tanners have payed more attention to biotechnology in leather-making, so proteases are more generally used to reduce pollution in various process stages, such as soaking, unhairing and bating, instead of traditional chemicals. But excessive enzyme treatment will cause loose grain and even damaged grain, especially in enzyme-unhairing. One of the keys to successfully carry out bioprocesses of leather-making is in the control of the balance between the desirable effect and the degree of proteolytic effect of enzymes on structural proteins in skins and hides. Elastin is an important fibrous protein, especially for the grain layer, and the excessive degrading of elastin is an important factor causing grain damage. Elastin is sensitive to proteases, so our series of investigation is focussed on evaluating the impacts of commercial proteases for leather manufacture on elastin and leather quality.
This paper reports on the evaluation of the specificity of typical and widely used proteases on elastin. Firstly, a suitable and sensitive method for determining elastase activity at the broad pH spectrum, was established based on remazol brilliant blue elastin powder (elastin-RBB) substrate. The main commercial proteases were selected, including microorganism and pancreatic, alkaline, acid and neutral proteases widely used in soaking, unhairing, liming and bating, for assaying elastin activity. The specificities of these protease to collagen were also evaluated, based on hide powder-RBB substrate. The results show that most commercial alkaline and neutral proteases exhibit elastase activity, while acid proteases show very low activity against elasti. The optimum pH of elastase activity of these proteases show very low activity against elastin. The optimum pH of elastase activity of these proteases is about 9.0. The optimum temperature is about 65°C, and the activity linearly increases with temperature rise from 30-65°C. Compared to bacterial enzymes, pancreatic proteases show lower activity against elastin, especially, a purified trypsin. Most bacterial proteases show higher activity against elastin, and several alkaline proteases used in soaking and liming exhibit much a higher ratio of activity to elastin against collagen. Thus, care is needed to select proteases for leather-making processes to avoid grain loosening and damage from the excessive removal of elastin.Note de contenu : - MATERIALS
- METHODS : Preparation of remazol brilliant blue-elastin powder (elastin-RBB) - Dye eluting characteristics of elastin-RBB and elastin-congo red - Optical absorption characteristics of the elastin-RBB hydrolysate - Determination of elastin-RBB calibration curve - Elastase activity assay
- OPTICAL ABSORPTION CHARACTERISTICS OF ELASTIN-RBB ENZYME HYDROLYSATE
- DETERMINATION OF ELASTIN-RBB CALIBRATION CURVE
- REACTION CHARACTERISTICS OF ELASTASE WITH ELASTIN-RBB : Effect of reaction time - Effect of elastase concentration - Effect of pH on elastase reaction of several leather proteases - Effect of temperature on elastase activity
- REPRODUCIBILITY OF ELASTASE ACTIVITY ASSAY METHOD
- COMPARISON OF ELASTASE ACTIVITY MEASURED WITH THREE DIFFERENT SUBSTRATES
- INVESTIGATION OF ELASTASE ACTIVITY OF COMMERCIAL PROTEASESEn ligne : https://drive.google.com/file/d/13QsmQpnHMGWH13rBYRmi0I2XXPvw4T8O/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15256
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 3 (05-06/2012) . - p. 100-105[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13973 - Périodique Bibliothèque principale Documentaires Disponible The implementation of an environmental management system / H. Gilmour in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 79, N° 2 (03-04/1995)
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Titre : The implementation of an environmental management system Type de document : texte imprimé Auteurs : H. Gilmour, Auteur Année de publication : 1995 Article en page(s) : p. 35-40 Langues : Anglais (eng) Catégories : Cuirs et peaux -- Industrie -- Aspect de l'environnement
Gestion de l'environnementIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The first question to ask is why a company would to implement an EMS. For us the answer was easy because being part of Scottish Tanning Industries group, we pursue excellence in everything we do. We consider care of the environment to be integral part of our management philosophy, sharing equal biling with health and safety and quality. Our eventual objective is to have an integrated management system combining all three as the structure and procedures are essentially the same. En ligne : https://drive.google.com/file/d/1Cax8ouS9eIcJUlpPfqs0rWiQ_fg9134-/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8223
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 79, N° 2 (03-04/1995) . - p. 35-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007003 - Périodique Bibliothèque principale Documentaires Disponible The implications of opening up / Amanda Michel in LEATHER INTERNATIONAL, Vol. 211, N° 4794 (10/2009)
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PermalinkThe importance of elastin distribution and morphology in ovine leather / Richard L. Edmonds in INDUSTRIE DU CUIR (IDC), N° 2012/03 (04-05-06/2012)
PermalinkThe importance of RSLs / BLC Leather Technology Centre in LEATHER INTERNATIONAL, Vol. 215, N° 4831 (06/2013)
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PermalinkThe improvement of dispersity, thermal stability and mechanical properties of collagen fibers by silane modification : an exploration for developing new leather making technology / Shuangfeng Xu in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 4 (Année 2022)
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PermalinkPermalinkThe inducement and modulation of collagen fiber on crystal morphology of calcium carbonate / Lihong Fu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 6 (06/2009)
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PermalinkThe influence of additives on hot pressed leather 'pleather' / R. T. Markus in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 74 (Année 1990)
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PermalinkThe influence of compensatory growth on certain hide and leather characteristics / J. F. de Bruyn in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. N° 71 (Année 1987)
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PermalinkThe influence of compensatory growth on certain hide and leather characteristics. Part II. Hide and leather yield and leather physical characteristics / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 72 (Année 1988)
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PermalinkThe influence of fatliquor concentration on microwave drying kinetics / Z. Bajza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 81, N° 6 (11-12/1997)
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PermalinkThe influence of first time drying on the characteristics and performance of leathers / Geoffrey E. Attenburrow in WORLD LEATHER, Vol. 18, N° 5 (08/2005)
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PermalinkThe influence of grain structure on grain crack properties of leather / L. G. Hole in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 63, N° 5 (09-10/1979)
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PermalinkThe influence of microwave non-thermal effect on leather properties in drying / Jinwei Zhang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 4 (04/2017)
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PermalinkThe influence of quantity of fatliquor offered and type of finish on the flex resistance of leather / H. W. Arnoldi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 54, N° 9 (09/1970)
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PermalinkThe influence of research of leather's ecological properties on its products - Eco-design / Chen Jing in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 6 (11-12/2014)
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PermalinkThe influence of salicyclic-metal compounds on the hydrothermal stability of collagen / Wang Ya-Juan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 2 (03-04/2008)
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PermalinkThe influence of some enzyme preparations on components of skin / M. A. Urbaniak in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 57 (Année 1973)
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PermalinkThe influence of some parameters in leather degreasing on the lipolytic activity of lipase / Diana Ivanova in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 4 (07-08/2004)
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PermalinkThe influence of surface active agents on the activity of proteolytic enzymes in the tannery / W. Pietrzykowski in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 54, N° 4 (04/1970)
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PermalinkThe influence of temperature and humidity on the moisture permeability of natural cattle leather / Zhong Anhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 104, N° 3 (05-06/2020)
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