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675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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The effect of palm oil sulfatation time on fatliquor quality and finished leather product / Rihastiwi Setiya Murti in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 5 (05/2020)
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Titre : The effect of palm oil sulfatation time on fatliquor quality and finished leather product Type de document : texte imprimé Auteurs : Rihastiwi Setiya Murti, Auteur ; Emiliana Kasmudjiastuti, Auteur ; Ono Suparno, Auteur Année de publication : 2020 Article en page(s) : p. 184-189 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Allongement à la rupture
Chimie analytique
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés physiques
Douceur (toucher)
Fourier, Spectroscopie infrarouge à transformée de
Huile de palme et constituants
Microscopie électronique à balayage
Produits de nourriture du cuir
Résistance à la traction
SulfatationIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Fatliquoring process is an important process in leather manufacturing as the process affects the properties of leather such as softness, oil content, tensile strength, elongation at break and tear strength. In this study, sulfated oil was made from palm oil by sulfatation process using 25% sulfuric acid (98% content) with variation of sulfatation times (0, 1, 2, 3, and 4 hours). The study aimed to know the influence of sulfatation time on the production of sulfated oil to the quality of oil and finish leather produced. The results showed the sulfatation time affected the quality of sulfated oil and tanned leather. The optimum time for sulfatation process of palm oil was three hours. The quality of sulfated oil had water content of 6.47%, pH of 8, oil content of 81.28%, saponification number of 192.74%, total alkalinity of 0.25%, ash content of 2.77% and SO3 levels bond of 7.68%. The quality of finished leather were tensile strength of 286.50 N/mm2, elongation at break of 63.33%, softness of 3.92 mm and oil content of 10.15%. Note de contenu : - EXPERIMENTAL : Materials and equipment - Synthesis of fatliquor from bulk palm oil using sulfatation process - Fatliquoring - Gas chromatography (GC) analysis - FT-IR analysis - Chemical properties - Physical properties - Microscopic studies
- RESULTS AND DISCUSSION : FT-IR analysis - Chemical properties - Physical properties - Tensile strength - Elongation at break - Softness - Oil content - Scanning Electron Microscopy (SEM)DOI : https://doi.org/10.34314/jalca.v115i5.3812 En ligne : https://drive.google.com/file/d/1HnkY-yLwM5EnR7PYbK1QUJjPWRQ-zzir/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34164
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXV, N° 5 (05/2020) . - p. 184-189[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21742 - Périodique Bibliothèque principale Documentaires Disponible The effect of particle size on the characteristics and performance of emulsion binders and topcoats / T. J. Braithwaite in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
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Titre : The effect of particle size on the characteristics and performance of emulsion binders and topcoats Type de document : texte imprimé Auteurs : T. J. Braithwaite, Auteur Année de publication : 1978 Article en page(s) : p. 82-86 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colloides
Cuirs et peaux -- Finition
Emulsification
Emulsions
Emulsions -- Stabilité
Laque et laquage
Liants
Polymères en émulsion
Polyuréthanes
Taille des particulesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The term emulsion, as applied to coating binders as is known today, is, in fact, a misnomer since by definition an emulsion is a mixture of two or more immiscible liquids, and binders are a mixture of an immiscible solid and a liquid. The correct terminology should thus be a resin dispersion but, for the sake of convenience, will always be referred to as "emulsion".
Aqueous polymers exist as three specific types. These types vary very significantly in both physical and mechani-cal properties. These three types are aqueous dispersions or emulsions, colloidal dispersions and true solutions.
Aqueous dispersions, or emulsions as they are commonly known, can be defined as discrete particles of high molecular weight polymer dispersed in an aqueous medium. The solid polymer is known as the disperse phase, while the water is the disperse medium.
Colloidal dispersions can be considered to be ultra-fine particles or molecular weight intermediates between that of aqueous dispersions and true solutions. The polymers contain polar groups, either acidic or basic, which do impart some degree of solubility. The colloidal dispersions can also be considered as hybrids of dispersions and true solutions, in that they possess properties which are common and characteristic of both types. True solutions, or water reducible resins, are polymers in which polymerisation reactions are performed in water miscible organic solvents such as esters and alcohols, or solubilised by the addition of alkali, i.e. neutralisation. Solubility is also attributed to polar groups on the polymer side chains. The polymers are thus totally soluble in the medium water.
The above generalisation will thus suffice to explain the varions "states" in which aqueous polymers are available. Emulsions find application in the function as binders or topcoats for leather finishing, while colloidal dispersions are used to a smaller extent as thickeners for the finish mixes and more commonly, as pasting adhesives. Water reducible urethane lacquers are also the colloidal dispersions type. True solutions are not currently used in leather finishing but are in the paint industry, particularly the automotive and appliance industries.Note de contenu : - TYPES OF EMULSIONS
- SURFACE ACTIVE AGENTS
- THE EMULSIFICATION PROCESS
- MEASUREMENT OF PARTICLE SIZE DISTRIBUTION : Measurement of particle size distribution : The electron microscope - Sedimentation method - Soap titration method - Light scattering method - General remarks
- THE EFFECT OF PARTICLE SIZE ON THE NATURE OF THE EMULSION, EMULSION POLYMERS AND BINDERS : Emulsion stability - Viscosity - Solids - Nitrocellulose lacquer emulsions
- THE EFFECT OF PARTICLE SIZE ON THE EFFECT OF PARTICLE SIZE ON THE PERFORMANCE OF THE EMULSION-BASED FINISHING SYSTEMS : Properties improved by increasing particle size - Disadvantages of fine particle emulsionsEn ligne : https://drive.google.com/file/d/1EKuMbEz4pgpYU_3wKzkdO2M4Th7KcxAl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35222
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 61 et 62 (Années 1977 et 1978) . - p. 82-86[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008597 - Périodique Archives Documentaires Exclu du prêt The effect of particle size on the characteristics and performance of emulsion binders and topcoats / T. J. Braithwaite in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 62, N° 4 (07-08/1978)
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Titre : The effect of particle size on the characteristics and performance of emulsion binders and topcoats Type de document : texte imprimé Auteurs : T. J. Braithwaite, Auteur Année de publication : 1978 Article en page(s) : p. 82-86 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colloides
Cuirs et peaux -- Finition
Emulsification
Emulsions
Emulsions -- Stabilité
Laque et laquage
Liants
Polymères en émulsion
Polyuréthanes
Taille des particulesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The term emulsion, as applied to coating binders as is known today, is, in fact, a misnomer since by definition an emulsion is a mixture of two or more immiscible liquids, and binders are a mixture of an immiscible solid and a liquid. The correct terminology should thus be a resin dispersion but, for the sake of convenience, will always be referred to as "emulsion".
Aqueous polymers exist as three specific types. These types vary very significantly in both physical and mechani-cal properties. These three types are aqueous dispersions or emulsions, colloidal dispersions and true solutions.
Aqueous dispersions, or emulsions as they are commonly known, can be defined as discrete particles of high molecular weight polymer dispersed in an aqueous medium. The solid polymer is known as the disperse phase, while the water is the disperse medium.
Colloidal dispersions can be considered to be ultra-fine particles or molecular weight intermediates between that of aqueous dispersions and true solutions. The polymers contain polar groups, either acidic or basic, which do impart some degree of solubility. The colloidal dispersions can also be considered as hybrids of dispersions and true solutions, in that they possess properties which are common and characteristic of both types. True solutions, or water reducible resins, are polymers in which polymerisation reactions are performed in water miscible organic solvents such as esters and alcohols, or solubilised by the addition of alkali, i.e. neutralisation. Solubility is also attributed to polar groups on the polymer side chains. The polymers are thus totally soluble in the medium water.
The above generalisation will thus suffice to explain the varions "states" in which aqueous polymers are available. Emulsions find application in the function as binders or topcoats for leather finishing, while colloidal dispersions are used to a smaller extent as thickeners for the finish mixes and more commonly, as pasting adhesives. Water reducible urethane lacquers are also the colloidal dispersions type. True solutions are not currently used in leather finishing but are in the paint industry, particularly the automotive and appliance industries.Note de contenu : - TYPES OF EMULSIONS
- SURFACE ACTIVE AGENTS
- THE EMULSIFICATION PROCESS
- MEASUREMENT OF PARTICLE SIZE DISTRIBUTION : Measurement of particle size distribution : The electron microscope - Sedimentation method - Soap titration method - Light scattering method - General remarks
- THE EFFECT OF PARTICLE SIZE ON THE NATURE OF THE EMULSION, EMULSION POLYMERS AND BINDERS : Emulsion stability - Viscosity - Solids - Nitrocellulose lacquer emulsions
- THE EFFECT OF PARTICLE SIZE ON THE EFFECT OF PARTICLE SIZE ON THE PERFORMANCE OF THE EMULSION-BASED FINISHING SYSTEMS : Properties improved by increasing particle size - Disadvantages of fine particle emulsionsEn ligne : https://drive.google.com/file/d/1EKuMbEz4pgpYU_3wKzkdO2M4Th7KcxAl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40490
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 62, N° 4 (07-08/1978) . - p. 82-86[article]The effect of preservation by freezing on the strength of kangaroo leathers / L. J. Stephens in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)
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Titre : The effect of preservation by freezing on the strength of kangaroo leathers Type de document : texte imprimé Auteurs : L. J. Stephens, Auteur Année de publication : 1987 Article en page(s) : p. 45-49 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Congélation
Cuirs et peaux -- Conservation
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de kangourous
Traction (mécanique)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Processors suspected that kangaroo skins preserved by freezing gave weaker, flatter leather tha similar salt preserved skins. Studies of hair-on and unhaired matchedsides have been completed to compare these preservation methods. After comparison of tensile strength, elongation at break and thickness measurements of each matching side it was concluded that preservation by freezing rather than salting had caused no deleterious effect on these properties. Previous reports of inferior leather from such skins could be attributed to difficulties in thawing large amounts of frozen skins. The convenience offered by freezing skins at the point of take-off would therefore make this a useful alternate preservation method. En ligne : https://drive.google.com/file/d/1WgV-08c50_j_PGuSWF52PIlgGct2SjN5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8969
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXII (Année 1987) . - p. 45-49[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008087 - Périodique Bibliothèque principale Documentaires Disponible The effect of soil-chromium III on the growth and chromium absorption of various plants / R. L. Sykes in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXVI (Année 1981)
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Titre : The effect of soil-chromium III on the growth and chromium absorption of various plants Type de document : texte imprimé Auteurs : R. L. Sykes, Auteur ; D. R. Corning, Auteur ; N. J. Earl, Auteur Année de publication : 1981 Article en page(s) : p. 102-125 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Greenhouse trials were carried out to grow crops in soil to which chromium III in various forms had been added. The dressings included tannery sludges from both bovine and sheepskin production, a proprietary fertilizer manufactured from chrome leather scrzp, a sewage-plant sludge containing appreciable amounts of Cr III, and precipitated Cr III hydroxide. The progress of the various crops was minotored and their fruit, leaves, roots, etc., were analysed for Cr III, as applicable. Although some of the mixtures were beneficial to plant growth, these effects could not be attributed to the presence of Cr III, but the results fully confirmed the nontoxicity of Cr III, at least at a level of 500 mg/kg in the soil. The concentration of Cr III in the soil had a negligible effect on the uptake of Cr III by the edible portions of the crops. Note de contenu : - FIRST SERIES OF EXPERIMENTS - EXPERIMENTAL : Dressings employed - Grops grown - Experimental technique - RESULTS : General growth development of crops - Quantitative results -
- SECOND SERIES OF EXPERIMENTS - EXPERMIENTAL : Dressings employed - Crops grown - Experimental technique - RESULTS : General growth and development of crops - Quantitative resultsEn ligne : https://drive.google.com/file/d/1IzwdvhzC7tkpYRhPQPJPh7wyAhl5I7pA/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17581
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXVI (Année 1981) . - p. 102-125[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008514 - Périodique Archives Documentaires Exclu du prêt The effect of some variables in the toggling of softy garment sides / T. A. Hopkins in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 65, N° 2 (03-04/1981)
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PermalinkThe effect of splitting and shaving upon some physical characteristics of side upper leather / D. Geoff Hawthorne in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXX (Année 1975)
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PermalinkThe effect of temperature and mechanical action on salt uptake during brine curing of cattlehides / David G. Bailey in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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PermalinkThe effect of trivalent chromium on anareobic digestion / C. A. Jackson-Moss in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIII (Année 1988)
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PermalinkThe effect of trypsin on soaking of salt cured hides / Luis A. Zugno in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), LXXXVII, N° 6 (06/1992)
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PermalinkThe effect of ultrasound on bovine hide collagen structure / Eleanor M. Brown in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 7 (07/2006)
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PermalinkThe effect of ultraviolet-curable water-borne polyurethane acrylate binder concentration on the printing performance of synthetic leather / Gülçin Baysal in COLORATION TECHNOLOGY, Vol. 135, N° 2 (04/2019)
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PermalinkThe effect on bending stiffness of drying leather under strain / E. J. Sturrock in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 1 (01-02/2002)
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PermalinkThe effectiveness of selective breeding for reducing the incidence of the vertical fibre hide condition in heredord cattle / D. E. Peters in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXX (Année 1985)
PermalinkThe effects of alternating and direct electric currents on moderately halohilic bacteria in leather industry / Pinar Caglayan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 6 (11-12/2016)
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PermalinkThe english leather industry 1790-1990 : the case of Bevingtons of Bermondsey. Wolstenholme memorial lecture / R. S. Thomson in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 75 (Année 1991)
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PermalinkThe enzyme activity of trypsen on sheepskin trimmings in a two-step collagen extraction process / F. Fernandez-Hervas in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 1 (01/2007)
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PermalinkThe evaluation of DBD plasma technique for removing carbon stain from leather artifacts / Muhammad El-Qubaisy in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 4 (07-08/2018)
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PermalinkThe evaluation of leather handle character using neural networks / Huang Xun in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 4 (07-08/2007)
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PermalinkThe extraction and high performance liquid chromatography (HPLC) determination of TCMTB samples of treated wet blue / W. M. Fowler in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. N° 71 (Année 1987)
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