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675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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Molecular weight distribution and functional properties of enzymatically modified commercial and experimental gelatins / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 3 (03/2004)
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Titre : Molecular weight distribution and functional properties of enzymatically modified commercial and experimental gelatins Type de document : texte imprimé Auteurs : Maryann M. Taylor, Auteur ; Eleanor M. Brown, Auteur ; William N. Marmer, Auteur Année de publication : 2004 Article en page(s) : p. 129-141 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Prior research from this laboratory has demonstrated that commercial gelatins can be modified with a microbial transglutaminase with a resulting effect on their physical properties. The gels isolated from those treatmentshad improved physical properties and films prepared from these modified products had superior mechanical properties. In this present study we modified commercial gelatins and experimental gelatin products isolated from chromium-containing tannery waste and examined the functional properties as well as their molecular weight distributions. On increasing the enzyme concentration, the gelatins become highly polymerized, some to such high molecular weight that the moieties will either not go into the SDS-PAGE gel or, because of their insolubility, cannot even be applied to the gel. Physical, foaming, adhesive and water absorption properties of enzymatically-modified gelatins were improved. The extent of modification of the resulting products was demonstrated by the molecular weight distribution studies and these correlated with changes in physical and functional properties. A particular advantage to using this enzymatic modification was the improvement in physical properties imparted to low quality gelatins. The modified protein has applications in a wide range of products, including adhesives, cosmetics, films, encapsulating agents, fertilizers, and--of significance to the leather industry--as coatings or fillers. En ligne : https://drive.google.com/file/d/1Ps5menD0AxS1k2U5xRLRMmvlbuSJJjQs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4187
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIX, N° 3 (03/2004) . - p. 129-141[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001599 - Périodique Bibliothèque principale Documentaires Disponible Mollescal an alternative to eliminating or reducing sulfide in beamhouse effluent / Frank N. Petraglia in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXVI (Année 1981)
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Titre : Mollescal an alternative to eliminating or reducing sulfide in beamhouse effluent Type de document : texte imprimé Auteurs : Frank N. Petraglia, Auteur Année de publication : 1981 Article en page(s) : p. 19-23 Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure En ligne : https://drive.google.com/file/d/1pWjEnACv8TK4vwuGwpcqTCNsVmA8BC5v/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17518
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXVI (Année 1981) . - p. 19-23[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008514 - Périodique Archives Documentaires Exclu du prêt Monitoring of available decorin in different parts of bovine hide during its processing into leather / Mila L. Adelma-Ramos in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 12 (12/2007)
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Titre : Monitoring of available decorin in different parts of bovine hide during its processing into leather Type de document : texte imprimé Auteurs : Mila L. Adelma-Ramos, Auteur ; Renée J. Latona, Auteur ; William N. Marmer, Auteur Année de publication : 2007 Article en page(s) : p. 404-407 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : During conversion of hides into leather, some hide constituents undergo changes and removal. Among those are decorin, biglycan, sulfated glycosaminoglycan (SGAG) and collagen. Properly monitoring the removal of the predominant and best understood proteoglycan of skin, decorin, was the focus of this work. An ELISA method was improved by dialyzing the guanidineHCl-extracted proteins in the presence of collagenase, allowing us to obtain a more manageable sample with uniform background and in turn more reliable analytical data. ELISA results on the depletion of decorin in intact hide samples were evaluated and compared among the different parts of bovine hide before and after dialysis. There was a clear difference between undialyzed and dialyzed samples of raw intact hide, whereas after the tanning treatments, the available decorin content was significantly the same from different parts. The amount of decorin that was removed from each area of the hide (shoulder > butt > belly), after processing them using the standard USDA tanning procedure, was directly proportional to the initial amounts. The final available decorin remaining per gram of intact hide in leather (bated samples) was significantly the same in all parts. Based on the dialyzed samples, there was about a 70-78% reduction of available decorin content from raw hide to bated hide samples compared to ~90% in undialyzed samples. The results followed more closely the trend of the SGAG (carbohydrate part of decorin) content determination previously reported by this group, where about a 75% drop was observed from the initial available SGAG content in raw hide to bated hide samples. En ligne : https://drive.google.com/file/d/13MHioiCW8z_fbzauY9AhYAi5xv90i2XT/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3317
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 12 (12/2007) . - p. 404-407[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008989 - Périodique Bibliothèque principale Documentaires Disponible 009740 - Périodique Bibliothèque principale Documentaires Disponible Monitoring the mode of action of synthetic and natural biocides against Aeromonas hydrophila by Raman spectroscopy and chemometrics / Megha Mehta in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
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Titre : Monitoring the mode of action of synthetic and natural biocides against Aeromonas hydrophila by Raman spectroscopy and chemometrics Type de document : texte imprimé Auteurs : Megha Mehta, Auteur ; Yang Liu, Auteur ; Mark Waterland, Auteur ; Geoff Holmes, Auteur Année de publication : 2021 Article en page(s) : 15 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aeromonas hydrophila
Analyse multivariée
Antimicrobiens
Chimiométrie
Cuirs et peaux -- Conservation
Huile essentielle d'origan
Inhibiteurs (chimie)
Spectroscopie Raman
Thiocyano-méthylthiobenzotiazoleIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : We have investigated the mode of action of synthetic biocides, (2-(thiocyanomethylthio) benzothiazole(TCMTB), dichlorophen, (commonly used in leather industry for preservation) and natural biocides, oregano and eucalyptus oils, on Aeromonas hydrophila using Raman spectroscopy in collaboration with multivariate analysis and 2D correlation spectroscopy to evaluate whether Raman spectra acquired contained valuable information to study the action of biocides on bacterial cells. The growth of A. hydrophila in clear and outer edge zone of inhibition differ in their reaction with different biocides, which allows us to highlight the differences as a characteristic of two kinds of bacteria. Such classification helps identify oregano oil as the most effective biocide by altering clear and outer edge zone of bacteria. Standard disk diffusion assay method was used for screening biocide bacteria interactions and later analysed by Raman spectroscopy. The paper also presents the introduction of TCMTB and oregano oil into leather processing stages to examine and determine the antimicrobial effect as an application to real-world setting. Therefore, we conclude that Raman spectroscopy with appropriate computational tools constitutes a powerful approach for screening biocides, which provide solutions to all the industries using biocides including leather industry, considering the potentially harmful effect of biocides to humans and the environment. Note de contenu : - MATERIALS AND METHODS : Biocides and bacteria - Biocides, bacteria and leather treatment - Data acquisition and Raman spectral processing
- RESULTS AND DISCUSSION : Disk diffusion agar plate test - Raman spectroscopy identifies biomolecular changes due to biocide treatment - Multivariate analysis - Two-dimensional correlation spectroscopy (2D-COS) - Antimicrobial effect of leather treated with biocides
- Table 1 : Disk diffusion determined zones of inhibition (mm) for A. hydrophila strain after treatment with TCMTB, DCP, oregano oil and eucalyptus oilDOI : https://doi.org/10.1186/s42825-021-00062-3 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-021-00062-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37546
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 3 (Année 2021) . - 15 p.[article]More security in leather dyeing by observing build-up power an affinity numbers / L. Rooryck in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61, N° 4 (07-08/1977)
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Titre : More security in leather dyeing by observing build-up power an affinity numbers Type de document : texte imprimé Auteurs : L. Rooryck, Auteur Année de publication : 1977 Article en page(s) : p. 85-87 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants
Cuirs et peaux -- Teinture
Essais (technologie)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In most works, selection of dyes for the dyeing of leather is based on long years of practical experience. Yet accelerating changes in fashion which involve changes in processing methods, particularly regarding retanning, fatliquoring, etc., as well as changes in countries of origin of skins, result in a change of behaviour of these leathers during dyeing. Frequently operational considerations prevent changes in substrate and in method of dyeing. Dyeing results can, however, be substantially improved by an optimum dye selection in accordance with recently established criteria. The dyeing behaviour of any dye on leather is influenced by many factors. In is difficult to create conditions that are exactly reproducible. Under the name of "Dermagen testing method" a process has been developed which is characterised by the mass-dyeing of a leather pulp made of shavings of a standard-tanned leather.i Depending on the standard depth2 figures are established for build-up power, the saturation limit as well as the affinity of a dye. On the basis of the numbers of affinity and the build-up power dues can be won about the behaviour of dye or combinations of dyes on leathers of varying pretreatment. Thus the selection of dyes on the basis of their dyeing behaviour is greatly simplified. Note de contenu : The dermagen testing method
- Principle of the dermagen testing method
- exampe of pure-chrome leather pulp (high-affinity)
- Example of a low-affinity mass
- Standard depths
- Examples
- Build-up power and saturation limit
- Assessment of build-up power and saturation limit of leather dyes
- Significance of build-up of power and saturation limit
- Behaviour concerning affinity
- Assessment of the affinity numbers of leather dyes
- Test procedure
- Examples
- Significance of affinity numbersEn ligne : https://drive.google.com/file/d/1f8-X88YphMzCG9vXV19zlEV5Pf64spfh/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34120
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 61, N° 4 (07-08/1977) . - p. 85-87[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007113 - Périodique Bibliothèque principale Documentaires Disponible More security in leather dyeing by observing build-up power and affinity numbers / L. Rooryck in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
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PermalinkMould growth on pickled pelt / J. C. Glover in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 59 (Année 1975)
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PermalinkMould growth on pickled pelt / J. C. Glover in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 59, N° 3 (05-06/1975)
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PermalinkPermalinkMulticriteria analysis of leather performance / J. Rudecka in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 93, N° 4 (07-08/2009)
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PermalinkMultidimensional analysis of magnesium oxide hydrolysis of wet-blue shavings / Kalyani Martinelango in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 6 (06/2004)
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PermalinkPermalinkMycotic dermatitis and cockle / Betty M. Haines in JOURNAL OF THE SOCIETY OF LEATHER TRADES' CHEMISTS, Vol. 54, N° 3 (03/1970)
PermalinkMycotic dermatitis and cockle / Betty M. Haines in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 54, N° 3 (03/1970)
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PermalinkNano-TiO2 in-situ hybrid polyurethane with enhanced permeability for PU leather manufacture / Chen Yi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 6 (06/2009)
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PermalinkNanocomposites of acrylate-organosilicon resin/layered silicate for leather finishing / Zhang Xiaolei in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 6 (11-12/2006)
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PermalinkNanotechnologies for leather manufacturing : a review / Chen Yi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 8 (08/2011)
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PermalinkNatural and artificial ageing of sheepskin collagen and its importance in leather manufacture / K. T. W. Alexander in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 72 (Année 1988)
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PermalinkNatural and synthetic leather - a microstructural comparison / Qu Jian-Bo in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 1 (01-02/2008)
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PermalinkNatural approach to improving light fastness of a leather dyed with a microbial colorant / Pandey Sudha in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 9 (09/2016)
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PermalinkNatural dyeing of leathers using natural materials / Jonnalagadda Raghava Rao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 3 (02/2008)
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PermalinkNatural fibers reinforced chrome shaving composites for sound absorption applications / D. Hemalatha in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 11 (11/2018)
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PermalinkPermalinkNatural leather protein's thermal stability at high temperature conditions : analyzed by AMBER software / Zhong Anhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 5 (09-10/2016)
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PermalinkNatural/open leather drying in contrast with controlled drying / D. S. Roosevelt in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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