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675.2 : Préparation du cuir naturel. Tannage |
Ouvrages de la bibliothèque en indexation 675.2
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Effect of ultrasound on watery dissolutions of vegetable extracts used in leather tanning / Josep Maria Morera in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 4 (04/2008)
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Titre : Effect of ultrasound on watery dissolutions of vegetable extracts used in leather tanning Type de document : texte imprimé Auteurs : Josep Maria Morera, Auteur ; A. Shendryk, Auteur ; V. Diaz, Auteur ; Lluis Ollé, Auteur ; Anna Bacardit, Auteur ; Esther Bartoli, Auteur Année de publication : 2008 Article en page(s) : p. 151 - 157 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : This paper analyses the effect of ultrasound on the aqueous dissolutions of vegetable extracts. This effect has been compared with that of a drum, which is the type of reactor used in leather tanning nowadays. The results indicate that the studied effects have similarities and that there is the possibility of using ultrasound during leather tanning with vegetable extracts. This may result in improvements in the quality of the leathers obtained. En ligne : https://drive.google.com/file/d/1rm63A1Ii6nxEDotcUdVaO89fnK74EJcs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2570
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 4 (04/2008) . - p. 151 - 157[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010013 - Périodique Bibliothèque principale Documentaires Disponible Effects of acrylic syntans on thermo-mechanical and swelling behaviour of chrome-tanned bovine leather - A comparative assessment / Pankaj Kumar Tyagi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 2 (03-04/2018)
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Titre : Effects of acrylic syntans on thermo-mechanical and swelling behaviour of chrome-tanned bovine leather - A comparative assessment Type de document : texte imprimé Auteurs : Pankaj Kumar Tyagi, Auteur ; Pijush Kanti Chatopadhyay, Auteur ; Goutam Mukherjee, Auteur Année de publication : 2018 Article en page(s) : p. 88-98 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Cuirs et peaux -- Propriétés thermomécaniques
Cuirs et peaux de bovins
Etudes comparatives
Gonflement (physique)
Poids moléculaires
Polyacrylates
solvants
Syntans
ViscositéIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Four different samples of cow softy leather (designated CSAS0, CSAS1, CSAS2, and CSAS3) were prepared from a chrome-tanned cow wet-blue of Indien origin. CSAS0 was the control sample wherein no polyacrylate based syntan was added. OSAS1, CSAS2, and CSAS3 contain different polyacrylate based syntans (3% w/w), differing in molecular weight, in addition to the other common auxiliaries used in ail of the four samples. Other unit operations (physical and chemical) for manufacturing leather were the same in ail the samples. Thermal, mechanical, and solvent swelling behaviour of these four semples were studied and we attempted to correlate them with the cross-linking densities of the samples. The swelling behaviour was studied in five different solvents (e.g. water, toluene, xylene, methyl ethyl ketone (MEK), and acetone), assuming definite solvent-bovine collagen interaction parameters and respective cross link densities were evaluated by the Flory-Rehner equation. While studying the mechanical behaviour, some distinguished theoretical models (e.g. Mooney-Rivlin, Flory, and Martin, Roth & Stiehler (MRS)) were tried to fit with the experimental results obtained during stress-stain analyses. In this process a few constants for cow Cr-tanned leather were derived as values of constant A in MRS equation remained in the range of 0.9-1.0, and value of constant B in Flory's equation remained in the range of 0.001-0.005, which had not been reported in the literature. The experimental results showed that the polyacrylate based syntan, bearing a higher level of free acrylic acid groups or a fewer proportion of esterified acrylic acid groups, formed better cross links with chrome-tanned bovine leather in comparison to other polyacrylate based syntans containing higher proportions of esterified acrylic acid groups. Moreover, high molecular weight polyacrylate based syntans provided better thermal and solvent resistance in comparison to low molecular weight polyacrylate based syntans. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation of samples - Characterization
- RESULTS AND DISCUSSION : Intrinsic viscosity and molecular weight of polyacrylate syntans - Acid value and sap value of polyacrylate syntans - Mechanical properties - TGA - Swelling - Boiling testEn ligne : https://drive.google.com/file/d/1psllywRvovg1tNTD-1OHGP15SWqc6PM1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30561
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 102, N° 2 (03-04/2018) . - p. 88-98[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19867 - Périodique Bibliothèque principale Documentaires Disponible Effects of bating, pickling and crosslinking treatments on the characteristics of fibrous networks from un-tanned hides / Cheng-Kung Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 3 (03/2013)
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Titre : Effects of bating, pickling and crosslinking treatments on the characteristics of fibrous networks from un-tanned hides Type de document : texte imprimé Auteurs : Cheng-Kung Liu, Auteur ; Nicholas P. Latona, Auteur ; Maryann M. Taylor, Auteur ; Renée J. Latona, Auteur Année de publication : 2013 Article en page(s) : p. 79-85 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Collagène
Composites
ConfitageLe confitage est une action biochimique effectuée au moyen de produits enzymatiques, qui a pour but de dégrader les fibres élastiques, contribuant ainsi à augmenter la souplesse du cuir. En outre, les enzymes complètent la dégradation des résidus épidermiques, donnant ainsi une fleur plus propre et plus lisse.
Cuirs et peaux
Décapage
Filtres à air
Glutaraldéhyde
Réticulation (polymérisation)Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The U.S. hides and leather industries are facing many challenges today, such as overcoming relatively high U.S. energy and labor costs; meeting environmental imperatives ; quantifying, maintaining, and improving current hides and leather product quality; developing new processes and products ; and improving utilization of waste. One of our efforts to address these new challenges is to develop new uses and novel biobased products from hides to improve prospective markets and to secure a viable future for the hides and leather industries. We hypothesize collagen fiber networks derived from un-tanned hides can be utilized to prepare high performance green composites and air filters, of which both have a great market potential. This study focused on understanding the effects of processing steps such as bating, pickling and crosslinking treatments on the morphology and physical properties of the fiber networks derived from un-tanned hides, which will be the starting material for constructing air filters and green composites. Results showed that glutaraldehyde treatment yielded a highly open structure, in which the fibers are well separated from each other. This could be attributed to the action of acids during the pickling step. Note de contenu : - EXPERIMENTAL : Materials and procedures - Mechanical property evaluations - Acoustic emission (AE) - Microscopic observations
- RESULTS AND DISCUSSION : Mechanical properties - Acoustic emission studiesEn ligne : https://drive.google.com/file/d/1mjRlGWRpBPkRVPXnmX2HHkUjH281rVeX/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17727
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVIII, N° 3 (03/2013) . - p. 79-85[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14787 - Périodique Bibliothèque principale Documentaires Disponible Effects of chain transfer agents on properties of AA/BA/AM copolymer retanning agents / Bin Lyu in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 1 (01-02/2017)
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Titre : Effects of chain transfer agents on properties of AA/BA/AM copolymer retanning agents Type de document : texte imprimé Auteurs : Bin Lyu, Auteur ; Jia Lu, Auteur ; Jianzhong Ma, Auteur ; Dangge Gao, Auteur ; Dong Ma, Auteur Année de publication : 2017 Article en page(s) : p. 10-15 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Copolymère acide acrylique acrylate de butyle acrylamide
Cuirs et peaux -- Propriétés mécaniques
Diffractométrie de rayons X
Fourier, Spectroscopie infrarouge à transformée de
Microscopie électronique à balayage
Polyaddition
Polymères -- Analyse
RetannageIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The retanning process is one of the most important processes in leather production and which plays a vital role in the modern leather industry. In this paper, copolymers based on acrylic acid (AA), butyl acrylate (BA) and acrylamide (AM), were prepared by free radical polymerization. Chain transfer agents were added during the synthesis process to control the molecular weight of the copolymer. The copolymers with different amounts of chain transfer agent were tested for their molecular weight and other properties. The copolymers were analysed using XRD, GPC and FT-IR.
Leathers were retanned with different copolymers and the mechanical properties, and SEM of retanned leather were also examined. The results showed that the increased molecular weight of the copolymers decreased the crystallinity, the functional groups of copolymers did net change significantly when the dosage of chain transfer agents increased. When the amount of chain transfer agents was increased, the copolymer had a smaller molecular weight and the retanned leather showed better elongation at break. When the copolymer molecular weight was larger, the tensile strength and tear strength of retanned leather increased. This is important to help select the appropriate molecular weight acrylic retanning agent for different styles of leather products.Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Synthesis of the poly AA/BA/AM copolymer - Preparation of leather - Characterization - FT-IR analysis - Mechanical properties
- RESULTS AND DISCUSSION : Characteristics of the prepared copolymer solution - Gel permeation chromatography (GPC) - FT-IR analysis of the prepared copolymers solution - XRD analysis of the prepared copolymers - Scanning electron microscope (SEM) - Mechanical propertiesEn ligne : https://drive.google.com/file/d/1w2kH_N0PovJ81YRA4Y7GYM4W1wDFxHJQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27983
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 1 (01-02/2017) . - p. 10-15[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18711 - Périodique Bibliothèque principale Documentaires Disponible Effects of drying methods on chrome-tanned leather / Cheng-Kung Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 5 (05/2004)
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Titre : Effects of drying methods on chrome-tanned leather Type de document : texte imprimé Auteurs : Cheng-Kung Liu, Auteur ; Joseph Lee, Auteur ; Nicholas P. Latona, Auteur Année de publication : 2004 Article en page(s) : p. 205-210 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The drying operation is a critical leather-making step to attain the required physical properties for leather products. There are various drying methods currently being used today in leather manufacturing. To make qualityleather, it is imperative to understand the effects of different drying methods on the physical characteristics of leather. Results from our comparison study showed that the method applied in a drying operation significantly affects the physical properties of leather, particularly area retention and compliance. Observations indicated that toggle drying produces higher area yield, but may result in stiffer leather. One of the important findings from this study is that there is a direct link between grain break and stiffness of leather. Data indicated that stiffer leather often results in poor break. Our research again showed that residual water content is a key factor for softness. Vacuum drying without toggling yields better toughness and softness, but does not significantly improve area yield. We also presented a dimensionless quantity "toughness index" that showed a strong correlation with the resultant area retention and stiffness of leather. Toughness index is independent of the geometry of the leather samples. Therefore, even without knowing the thickness or shape of the samples, one can still make an effective comparison of properties. En ligne : https://drive.google.com/file/d/1EEJP60KggcBGB4Srvs8_i1uxHMx7C8pZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4194
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Code-barres Cote Support Localisation Section Disponibilité 001602 - Périodique Bibliothèque principale Documentaires Disponible Effects of pretanning processes on bovine hide collagen structure / Eleanor M. Brown in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 1 (01/2012)
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PermalinkEffects of pretanning processes on collagen structure and reactivity in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 1 (01/2013)
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PermalinkEffects of quebracho on nitrification in a pilot scale extended aeration unit / J. David Eye in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXVI (Année 1981)
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PermalinkEfficacy assessment of bactericide containing didecyldimethylammonium chloride on bacteria found in soak liquor at different exposure times / Didem Berber in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 11 (11/2010)
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PermalinkEfficiency of enzymic solubilization of chrome shavings as influenced by choice of alkalinity-inducing agents / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVI, N° 6 (06/1991)
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PermalinkEfficient removal of total nitrogen from tannery wastewater by promoting denitrification with sodium acetate / Ma Xiaojian in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 6 (11-12/2019)
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PermalinkEin überblick über die moderne pflanzliche gerbung / Zurich [Suisse] : Tanning Extract Producers Federation (1976)
PermalinkElastiticy studies on leather retanned with various types of acrylic polymers / Jianzhong Ma in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 11 (11/2008)
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PermalinkElectro-oxidation of saline wastewater from tannery and reuse of recovered salt / P. Vijayalakshmi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 11 (11/2009)
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PermalinkElectrochemical oxidation and reuse of pickling wastewater from tanneries / S. Sundarapandiyan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 11 (11/2008)
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PermalinkElectrochemical separation of chromium containing tannery waste liquid / Zheng Haonan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 104, N° 3 (05-06/2020)
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PermalinkElectron beam irradiation of fresh hides, salted hides and leather. Microbial control and effect on physical properties / David G. Bailey in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIII (Année 1988)
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PermalinkEmploi de l'extrait de mimosa dans le tannage rapide des peaux légères / J. H. Atkinson / London [United Kingdom] : Wattle Export Development (n.d.)
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PermalinkEngendering technological innovation in the Nigerian traditional tanning sector / E. M. Okonkwo in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 2 (03-04/2002)
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PermalinkEngineering the square cow and other things... / Graham Lampard in LEATHER INTERNATIONAL, Vol. 214, N° 4822 (07/2012)
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PermalinkEnhancing leather fungicide performance through potentiation chemistry / Michael E. Elmore in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCII, N° 6 (06/1997)
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PermalinkEnter the root-zone : green technology for the leather manufacturer / Richard Daniels in WORLD LEATHER, Vol. 14, N° 4 (06-07/2001)
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PermalinkEnvironmental aspects of tanning with chromium / J. Gauglhofer in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 70 (Année 1986)
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PermalinkEnvironmentally friendly production of chrome-tanned leathers / K. G. Dunhill in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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PermalinkEnzymic treatment of chrome shavings / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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PermalinkPermalinkEpoxide tannage : a way forward / R. J. Heath in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 5 (09-10/2005)
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PermalinkEquilibrium and kinetics of vegetable tanning process / Xuepin Liao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 5 (05/2004)
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PermalinkEssential role of isoelectric point of skin/leather in leather processing / Ya-Nan Wang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 4 (Année 2022)
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PermalinkEtude de la formation d'ions complexes dans les solutions tannantes de sulfate d'alumine et d'alun de chrome / François Grall / 1951
PermalinkEtude d'un nouveau procédé de tannage par les sels de chrome en milieu solvant organique immiscible à l'eau. Son extension à l'échelle pilote industriel, à divers types de fabrication et différents agents tannants / Véronique Chagne / 1994
PermalinkPermalinkPermalinkEtude sur l'application des produits de chrome prêts à l'emploi / H. Spahrkäs / Leverkusen [Allemagne] : Bayer (nd)
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PermalinkEtude sur le tannage au chrome à deux bains / K. Klanfer in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXI (Année 1969)
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PermalinkEtudes chimico-physiques sur les caractéristiques des solutions de sulfates basiques de chrome / Florin Platon C. in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXIV (Année 1972)
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PermalinkEvaluation of chemical products in leather post-tanning process and their influence in presence of neutral salts in raw tannery effluent / M. V. Moreira in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 4 (04/2019)
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PermalinkEvaluation of collagen hydrolysate on the performance properties of different wet-white tanned leathers / Yusuf Dilek in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 3 (05-06/2019)
PermalinkEvaluation of environmental impact of typical leather chemicals. Part 2 : Biodegradability of organic tanning agents by activated sludge / Danhong Sun in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 2 (03-04/2008)
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PermalinkEvaluation of environmental impact of typical leather chemicals. Part 3 : Biodegradability of vegetable tannin extracts by activated sludge / Qiang He in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 3 (05-06/2008)
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PermalinkEvaluation of a mixture of castor oil and polyvinylpyrrolidone for the lubrication of dry / Gomaa Abdel-Maksoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 106, N° 1 (01-02/2022)
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PermalinkEvaluation of modifications to the alca standard method for tannin analysis in tannery liquors / Robert J. Harvey in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 4 (04/2003)
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PermalinkEvaluation of potential application for sunt pod extracts (Acacia nilotica) in leather tanning / A. I. Nasr in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 1 (01/2017)
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PermalinkEvaluation of sludge behavior in upflow anaerobic sludge blanket reactor for tannery wastewater treatment / R. Suthanthararajan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 1 (01/2006)
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PermalinkEvaluation of the energy savings when using vacuum eryers with total thermal energy recovery in tanneries / Josep Maria Morera in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 12 (12/2008)
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PermalinkEvaluation of the physical properties of goatskins tanned using banana (Musa spp.) leaf midrib tannins / James K. Wangui in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIX, N° 1 (01/2024)
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PermalinkEvaluation of urea sulfate as a replacement for sulfuric acid in chrome tanning / Andrew G. Gehring in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 7 (07/2001)
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PermalinkEvaluation of wax or oil fungicide formulations for preservation of vegetable-tanned leather artifacts / Gomaa Abdel-Maksoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 2 (03-04/2006)
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PermalinkEvidence for adsorbable organic halides in the beamhouse, tanning and post tanning processing of ovine skin / M. C. Riva in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 1 (01/2006)
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PermalinkEvolution des procédés d'automatisation en milieu humide / M. Aloy in TECHNICUIR, (Années 1969-1970)
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