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Détail de l'indexation
675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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Modeling wet processing systems and technologies / James N. Trapp in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XXVII (Année 1982)
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Titre : Modeling wet processing systems and technologies Type de document : texte imprimé Auteurs : James N. Trapp, Auteur ; David G. Bailey, Auteur Année de publication : 1982 Article en page(s) : p. 120-136 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A computerized model has been developed to provide a flzxible tool for conducting economic feasibility studies and budgeting analyses of alternative wet processing systems. The model is designed either to use standard technologies as "default" parameters or to accept any number of subsitutes for the defaults, so that the model can be readily "customized" to consider many alternative systems and new technologies. Output of the model includes a detailed listing of the specified or estimated costs for building, land, equipment, labor, chemical, maintenance, utility, tax, insurance, and depreciation by individual process steps and in total. Estimates of byproduct values and cost per hide and per square foot of product made are also generated. Note de contenu : - MODEL OVERVIEW
- MODEL APPLICATION : Base model results - 10 percent annual inflation - Operation at 80 percent of capacity - Economies of sizeEn ligne : https://drive.google.com/file/d/1aBktzXswUJDHIsfGsGPny21PAbb1n7Rw/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17433
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XXVII (Année 1982) . - p. 120-136[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008515 - Périodique Archives Documentaires Exclu du prêt Modelling the solubility of films prepared from collagen hydrolysate / Pavel Mokrejs in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 6 (11-12/2010)
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Titre : Modelling the solubility of films prepared from collagen hydrolysate Type de document : texte imprimé Auteurs : Pavel Mokrejs, Auteur ; Dagmar Janacova, Auteur ; Petr Svoboda, Auteur ; Vladimir Vasek, Auteur Année de publication : 2010 Article en page(s) : p. 231-239 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Amidon dialdéhyde
Analyse thermique
Biodégradation
Collagène
Couches minces
GlycérineLe glycérol, ou glycérine, est un composé chimique de formule HOH2C–CHOH–CH2OH. C'est un liquide incolore, visqueux et inodore au goût sucré, utilisé dans de nombreuses compositions pharmaceutiques. Sa molécule possède trois hydroxyles correspondant à trois fonctions alcool responsables de sa solubilité dans l'eau et de sa nature hygroscopique. Un résidu glycérol constitue l'articulation centrale de tous les lipides de la classe des triglycérides et des phosphoglycérides.
PROPRIETES PHYSIQUES : Le glycérol se présente sous la forme d'un liquide transparent, visqueux, incolore, inodore, faiblement toxique si ingéré (mais laxatif à haute dose), au goût sucré.
Le glycérol peut se dissoudre dans les solvants polaires grâce à ses trois groupes hydroxyles. Il est miscible dans l'eau et l'éthanol ; et insoluble dans le benzène, le chloroforme et le tétrachlorométhane.
Son affinité avec l'eau le rend également hygroscopique, et du glycérol mal conservé (hors dessicateur ou mal fermé) se dilue en absorbant l'humidité de l'air.
- PROPRIETES CHIMIQUES : Dans les organismes vivants, le glycérol est un composant important des glycérides (graisses et huiles) et des phospholipides. Quand le corps utilise les graisses stockées comme source d'énergie, du glycérol et des acides gras sont libérés dans le sang.
- DESHYDRATATION : La déshydratation du glycérol est faite à chaud, en présence d'hydrogénosulfite de potassium (KHSO3) et produit de l'acroléine
- ESTERIFICATION : L'estérification du glycérol conduit à des (mono, di ou tri) glycérides.
- AUTRES PROPRIETES : Le glycérol a un goût sucré de puissance moitié moindre que le saccharose, son pouvoir sucrant est de 0,56-0,64 à poids égal13.
Le glycérol a des propriétés laxatives et diurétiques faibles.
Comme d'autres composés chimiques, tels que le benzène, son indice de réfraction (1,47) est proche de celui du verre commun (~1,50), permettant de rendre "invisibles" des objets en verre qui y seraient plongés.
Hydrolysats de protéines
Plastifiants
Solubilité
ThermogravimétrieIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The work deals with modeling the solubility of biodegradable films prepared from collagen hydrolysate. To this purpose, we studied the effect of added plasticizer, cross-linking agent or additional thermal annealing on the dissolution rate of films ; experiments were planned as factorial tests of the 2-3 type. The basis for preparing films was a 15 % (w/v) solution of hydrolysate with various additions of plasticizer - glycerol (GLY) in quantities of 0,5 and 10 % (related to hydrolysate dry matter, w/w), cross-linking agent - dialdehyde starch (DAS) in quantities of 0,4 and 8 % (related to hydrolysate dry matter, w/w).
Films were prepared by casting solution on silicone plates with subsequent evaporation of solvent (water) in 72 hours at 35°C. A part of the films was subjected to addition thermal annealing at 62,5 and 90°C. Solubility tests on films were performed in water at 25°C. The percentage of dissolved film was determined through gravimetry.
The results of film solubility were assessed statistically and graphic models were produced. It was found that added dialdehyde starch and additional thermal annealing very prominently affect the course of film dissolution. Qualities further studied with prepared films were thermal properties by DSC and TGA techniques.En ligne : https://drive.google.com/file/d/120G7dUuljbC50drzKR-GMmvij-bqkKhh/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10808
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 94, N° 6 (11-12/2010) . - p. 231-239[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012670 - Périodique Bibliothèque principale Documentaires Disponible A modern approach to gloss control / J. F. Levy in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 3 (03/2002)
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Titre : A modern approach to gloss control Type de document : texte imprimé Auteurs : J. F. Levy, Auteur ; J. W. Bouchard, Auteur Année de publication : 2002 Article en page(s) : p. 114-121 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Modern finishing of leather requires coatings with high adhesion, abrasion resistance and flexibility. When extremely low gloss is required as a coating attribute on top of these properties, current state of coatings art requires the use of high loadings of dulling agents. High duller loadings can detract from coating mechanical properties and adhesion. This paper reports on a novel, film-forming polymer chemistry that is inherently of extremely low gloss. This chemistry makes it possible to avoid high loadings of duller and to arrive at highly flexible and abrasion resistant low-gloss finishes. Gloss levels of as low as a few tenths of a percent, even at high incidence angles, have been achieved with zero loading of extraneous dulling agent. A benefit of this approach is low haze enabling jetter blacks and more intense renditions of colored undercoats. The polymer exhibits an unusual film morphology. A theoretical model susceptible to exact mathematical interpretation is invoked to explain how this morphology operates to achieve gloss control. The model casts light on dulling mechanisms and the origins of haze in conventionally dulled finishes. En ligne : https://drive.google.com/file/d/1Fzj6dRmOTxZFQcew9iR8H9OwBAzclA8s/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4323
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVII, N° 3 (03/2002) . - p. 114-121[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001572 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Modern cow leather processing - Version 1 Type de document : texte imprimé Auteurs : Luis Zugno, Editeur scientifique Editeur : Leather Naturally Année de publication : n.d. Importance : n.p. Présentation : ill. Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Since pre-historic times animal skins have been used for protection against the elements. The primitive preservation process was through smoking and drying. Later, vegetable extracts were used to create the first leathers.
Leather making became one of the oldest known industries. The earliest tanning recipe was created around 700 BC. Chemistry and tanning processes have continued to evolve down through the generations.Note de contenu : - INTRODUCTION : Science and Art - Leather today
- ALL ABOUT HIDES : fferences between hide, skin and leather - The definition of 'Leather' - About cow hides - Not all cow hides are the same - Global characteristics of cow hides - Classification of hides in the USA - Wet blue classification in the USA and Brazil - Parts of a cow hide, including defects - Preserving and shipping hides - The cross section and structure of a hide - Industrial cow hide by-products
- LEATHER PROCESSING : What is a tannery ? - Key processing machinery - The beamhouse process - Main types of tannages - Chrome tannage - Vegetable tannage - Wet white tannage - How do we make leather so thin ? - Leather thickness - The wet end process - The finishing process - Coatings application equipment - Dyes and pigments - Main types of finished leathers
- LEATHER PROPERTIES : Physical and chemical leather testing - Properties of a good shoe leather - Properties of automotive leather - Properties of upholstery leather - Leather cutting - Color control and management - Chemical management and handling - Main units in the leather industry
- LEATHER CONTROL - EATHER BIODEGRADABILITY : Typical test methods - Leather biodegradability - Biodegradability of selected materials
- TANNERY WASTEWATER TREATMENT : Tannery effluent treatment - Sustainable technologies
- LOOKING AFTER LEATHER : Leather repair - Main types of leather
- THE FUTURE : What will cow hide tanneries be like in the future ?Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37010 Documents numériques
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Modern cow leather processing - Version 1URLModern day fatliquoring / R. Wyss in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. N° 71 (Année 1987)
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Titre : Modern day fatliquoring Type de document : texte imprimé Auteurs : R. Wyss, Auteur Année de publication : 1987 Article en page(s) : p. 89-91 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Over the last decades, the technology of leather manufacturing has changed drastically due to scientific research, development and experience on the practical side. Further influences have been due to environmental legislation, changes in hide/skin raw materials rationalisation in production and labour costs among other factors. Because fatliquors play a very important part il leather production, manufacturers of fatliquors have to offer products according to those trends. Note de contenu : RAW OILS, FATLIQUORS AND EMULSIONS.
REQUIREMENTS OF THE FATLIQUOR USED ON THE LEATHER Behaviour towards water - Lightfastness - Fatliquoring in the dyeing bath - Flame retardation - Fixation - Finishing properties - Spues.
Practical aspects.
PRACTICAL ASPECTS : Standardised processes - Low float-high concentration - Fatliquor addition in several stages.En ligne : https://drive.google.com/file/d/1y546-0-Yh0iSYbQap2nP2x1fyPm1kVsp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9159
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. N° 71 (Année 1987) . - p. 89-91[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007135 - Périodique Bibliothèque principale Documentaires Disponible Modern finishing / R. A. Harrison in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 72 (Année 1988)
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PermalinkModern leather requirements / C. D. Hey in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. N° 71 (Année 1987)
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PermalinkModern leatherwork for makers / Tim Deagan / San Francisco [United States] : Maker Media, Inc. (2017)
PermalinkModern researches in leather dyeing / Samir Dasgupta in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 60 (Année 1976)
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PermalinkModern researches in leather dyeing / Samir Dasgupta in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 60, N° 6 (11-12/1976)
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PermalinkModern technology of soft leather production / E. Kukowitsch in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 70 (Année 1986)
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PermalinkPermalinkModification and application of aminosiloxane in fatliquoring / Keyong Tang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 93, N° 6 (11-12/2009)
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PermalinkModification of collagen fibre and clean chrome tanning technology using low temperature plasma / Yang Jinwei in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 6 (11-12/2012)
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PermalinkModification of collagen for high Cr(III) adsorption / Zhaoyang Luo in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 4 (04/2009)
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PermalinkModification of collagen hydrosylate be edac / Keyong Tang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 1 (01-02/2008)
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PermalinkModification of faltiquored split by in-situ polymerization of n-butyl-methacrylate / Xu Weixing in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 2 (03-04/2017)
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PermalinkModification of a fleshing machine for green fleshing / Stefan Banaszak in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 1 (01-02/2007)
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PermalinkModification of polyurethane finishing agent using collagen hydrolysate from chrome shavings / Keyong Tang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 1 (01/2010)
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PermalinkModification of starch and its application in leather making / Jumeng Zhen in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 3 (05-06/2002)
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