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675.2 : Préparation du cuir naturel. Tannage |
Ouvrages de la bibliothèque en indexation 675.2
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Characteristics of leather tanned with Nano-SIO2 / Haojun Fan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. C, N° 1 (01/2005)
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Titre : Characteristics of leather tanned with Nano-SIO2 Type de document : texte imprimé Auteurs : Haojun Fan, Auteur ; Biyu Peng, Auteur ; Qiang He, Auteur ; Bi Shi, Auteur ; Ling Li, Auteur Année de publication : 2005 Article en page(s) : p. 22-28 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : A nano-precusor which can, in-situ, produce nano-SiO2 under particular triggering condition was introduced into leather to improve the hydrothermal stability. In order to elucidate the reaction of nano-SiO2 with proteinand how it influences the properties of the protein, collagen was used as a model in a detailed investigation. The results from FTIR (Infrared) indicated that two new chemical bonds arose during the formation of the organic-inorganic nano-hybrid. One appears to be the reaction between nano-SiO2 formed in-situ by the hydrolysis of tetraethoxy silane and the -C=N-groups of arginine, histidine, and tryptophane in the backbone of collagen. In a second bond, occurring at the same time as the condensation of silanol proceeds, the pendent hydroxyl groups of collagen may partly react with Si-OH and form a strong interaction between the organic and inorganic phases. These two chemical bonds seem to contribute to the leather's high hydrothermal stability. The size distribution of nano-SiO2 as determined by Atomic Force Microscopy is approximately 50-80 nm and there appeared to be no agglomeration. Organic-inorganic nano-hybrid can improve the hydrolysis stability of collagen efficiently in the presence of enzyme, acid, and alkali. When the bated pelt is treated with 0.3 wt % nano-SiO2 (based on bated pelt weight), the shrinkage temperature reached above 95°C. Although the mechanical properties of nano-SiO2 tanned leather are inferior to chromium tanned leather, other properties of nano-SiO2 tanned leather, such as yield, grain, fullness and softness together with washability are all superior to chromium tanned leather. En ligne : https://drive.google.com/file/d/1ohLq2CUJ-Oo_mR-8noT-ldL7pN59s7c6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4087
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. C, N° 1 (01/2005) . - p. 22-28[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000685 - Périodique Bibliothèque principale Documentaires Disponible Characterization and ecotoxicity studies of tannery wastes envisagine environmental impact assesment / Buddhadeb Chattopadhyay in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIV, N° 9 (11/1999)
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Titre : Characterization and ecotoxicity studies of tannery wastes envisagine environmental impact assesment Type de document : texte imprimé Auteurs : Buddhadeb Chattopadhyay, Auteur ; Ranjan Gupta, Auteur Année de publication : 1999 Article en page(s) : p. 337-346 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : This work was initiated to study the physico-chemical and biological conditions of the tannery effluent and their influence on the east Calcutta wetland ecosystem. Temperature, DO, BOD, COD, TDS, TSS, Conductivity, Total hardness, Chloride content, pH, Phosphates, Nitrates, Acidity and Alkalinity were recorded from four different spots on the sewage carrying canals in the eastern Calcutta (Lat. 22o33’-22o40’ N; long. 88o25’-88o 35’ E). Concentrations of heavy metals as Pb, Cu, Cr, Zn, Fe and Mn in tannery wastewater's and tannery sludge were also determined. Accumulation of these metals in different plant parts and fish organs were also studied. East Calcutta wetland ecosystem exhibited significant ameliorative role in waste stabilization and managing hazardous pollutants. En ligne : https://drive.google.com/file/d/18FGxq65GqRoxZmW6ZVCXzZEmOrOxLM0R/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4411
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIV, N° 9 (11/1999) . - p. 337-346[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006978 - Périodique Bibliothèque principale Documentaires Disponible Characterization and mechanism of zinc salts as tanning agents / Shan Cao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 11 (11/2013)
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Titre : Characterization and mechanism of zinc salts as tanning agents Type de document : texte imprimé Auteurs : Shan Cao, Auteur ; Baozhen Cheng, Auteur ; Qiaoe Wang, Auteur ; Bing Liu, Auteur Année de publication : 2013 Article en page(s) : p. 428-433 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Agents de tannage
Caractérisation
Cuirs et peaux
Sels métalliques
ZincIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Zinc has important biological functions as one of the essential trace elements to human. The Zinc tanning agent could produce white leathers with properties comparable to the chrome tanning agent, and the tanning agents based on Zinc salts were prepared using different masking agents such as sodium formate, sodium acetate, sodium tartrate and potassium hydrogen phthalate. The selection of the zinc tanning agents has been optimized based on the properties like hydrothermal stability and percentage exhaustion of zinc. The results indicated that zinc sulfate can be used as tanning agent under acidic conditions (50g/L, pH=3, 25°C) and is an effective and superior method. Moreover, Sodium citrate (0.1mol/L) was selected as masking agent compared with other masking agents. The hydrothermal stability was improved effectively with the action of masking agent. Note de contenu : - EXPERIMENTAL PROCEDURES : Equipment - Materials - Preparation of zinc ion measuring reagent - Preparation of tanning reagent - The optimal conditions of zinc tanning procedure - The selection of the masking agent for zinc tanning
- RESULTS AND DISCUSSION : Hydrothermal stability of wet leather tanned with zinc salts - The effects of masking agent - The principle of zinc tanning
- Table I : Type and concentration of zinc tanning agent
- Table II : The hydrothermal stability of different concentration of zinc tanning agent
- Table III : The selection of the zinc agent's species
- Table IV : Hydrothermal stability the masking agent's species in zinc tanning processEn ligne : https://drive.google.com/file/d/1l3UkjsTmwceI2XZXciXSUZCOia90qlzY/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19691
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVIII, N° 11 (11/2013) . - p. 428-433[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15707 - Périodique Bibliothèque principale Documentaires Disponible Characterization of chromium complexes in chrome tannins, leather, and gelatin using extended x-ray absorption fine structure spectroscopy / T. Reich in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 4 (04/2001)
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Titre : Characterization of chromium complexes in chrome tannins, leather, and gelatin using extended x-ray absorption fine structure spectroscopy Type de document : texte imprimé Auteurs : T. Reich, Auteur ; C. Hennig, Auteur ; A. Rossberg, Auteur Année de publication : 2001 Article en page(s) : p. 133-147 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Chrome tannage is the most intensively investigated tanning process. Nevertheless, the nature (size) of the chromium - collagen complexes has not been proved experimentally yet. We investigated the structure of the chromium complexes in powder and dilute solutions of chromium alum, a basic chrome(III) tannin (Chromosal B), an acetone dehydrated, Chromosal tanned Wet Blue leather, an industrial manufactured leather before and after artificial shrinkage, and gelatin by Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy. It is shown that in solid Chromosal B every Cr atom is surrounded by approximately two other Cr atoms. In 0.2 M Chromosal B solution binuclear, in solid chromium alum and its 0.2 M solution mononuclear chromium complexes are present. In leather and gelatin the bound chromium complexes are approximately binuclear. Partial area shrinkage caused by repeated thermal treatment of the chrome leather did not lead to a significant change of the Cr complex inside the leather. These results support the current theoretical concept of chrome tanning in a direct way and demonstrate the great potential of EXAFS investigations in the leather field.
En ligne : https://drive.google.com/file/d/1fZ6WFVbedxX1Rs0ND3-_qJ_M9ax5gbB6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4388
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVI, N° 4 (04/2001) . - p. 133-147[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001562 - Périodique Bibliothèque principale Documentaires Disponible Characterization of products isolated by enzyme treatment of chromium-containing leather waste / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVII, N° 10 (10/1992)
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Titre : Characterization of products isolated by enzyme treatment of chromium-containing leather waste Type de document : texte imprimé Auteurs : Maryann M. Taylor, Auteur ; Edward J. Diefendorf, Auteur ; Eleanor M. Brown, Auteur ; William N. Marmer, Auteur Année de publication : 1992 Article en page(s) : p. 380-388 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Enzymic processing of chrome shavings and trimmings has previously been shown to be a viable treatment of this substantial waste product generated by the tanning industry.Characterization of the chrome cakes ant the protein generated by these treatments was an important next step in this research.Tanneries use different type of processes to tan the leather and these varying processes are dependent on the type of chrome should be present in the effluent.Chrome shavings were obtained from three tanneries.The blue stock had been processed by conventional, albeit different, tannages.For optimal solubility, an individual pretreatment was developed for each type of shavings.They were then treated enzymically and the chrome cake and the protein fraction were isolated.Analyses of the shavings,the chromium-containing cakes and the protein fraction showed that chromium containing leather waste from a variety of sources can be enzymically digested when the appropriate pretreatment is performed.The chemical composition of the isolated products is dependent on the type of treatment and on the composition of the original chromium-containing leather waste product. En ligne : https://drive.google.com/file/d/10VQ5_h8DSqgvmHLdCL5fTyHAm3Cde5px/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8283
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVII, N° 10 (10/1992) . - p. 380-388[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006898 - Périodique Bibliothèque principale Documentaires Disponible Characterization of raw wastewater from tanneries / Mariliz Gutterres in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 6 (11-12/2015)
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PermalinkCharacterization of solid tanning salts manufactured from iron (III) sulphate and potassium acid tartrate / E. L. Talvani in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 78, N° 2 (03-04/1994)
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PermalinkCharacterization of waste materials in tanneries for better ecological uses / A. Rangel-Serrano in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 2 (02/2003)
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PermalinkChemical modification of collagen for improved chrome tannage / Stephen H. Feairheller in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIII (Année 1988)
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PermalinkChemistry of syntans and their influence on leather quality / Jochen Ammenn in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 11 (11/2015)
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PermalinkChimie de l'extrait de quebracho / Buenos Aires [Argentina] : Instituto Tecnico del Extracto de Quebracho (ITEQ) (1970)
PermalinkPermalinkChimie - Tannerie. Tome 2 : Le collagène & sa structure fibrillaire. Les collagènes III, V, VI, VII / G. Bouchet / 1989
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PermalinkChimie - Tannerie. Tome 3 : Aspects généraux sur la réactivité du collagène - 1 / G. Bouchet / 1989
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PermalinkChimie - Tannerie. Tome 4 : Aspects généraux sur la réactivité du collagène - 2 / G. Bouchet / 1989
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PermalinkChimie - Tannerie. Tome 5 : Constituants mineurs du tissu : Elastine, GAGs, PG & GP ; Collagène IV et fleur (jonction derme-épiderme) / G. Bouchet / 1989
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PermalinkChimie - Tannerie. Tome 6 : Epiderme - Kératines & production épidermiques - Muscles arrecteurs - Lipides - Rupture des ponts disulfiques et des liaisons O-glycosyles par actions chimiques et/ou enzymatiques / G. Bouchet / 1989
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PermalinkChinese developments in chrome-free and low-chrome tanning materials in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 6 (11-12/2007)
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PermalinkChitosan in leather production. Part 3 / Stephen M. Burkinshaw in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 76, N° 2 (03-04/1992)
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PermalinkChitosan in leather production, part 4 / Stephen M. Burkinshaw in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 76, N° 4 (07-08/1992)
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PermalinkChitosan in leather production / Stephen M. Burkinshaw in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 76, N° 6 (11-12/1992)
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PermalinkLe chromate dans le cuir. Enqûete sur la possible formation et le soin à éviter / Christiane Hauber in INDUSTRIE DU CUIR (IDC), N° 2014/01 (01-02/2014)
PermalinkChrome adsorption characteristics of Yue village soil fertilized with tannery sludge / Ding Shaolan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 4 (07-08/2014)
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PermalinkA chrome-free combination tanning strategy : based on silicic acid and plant tannin / Zetian Zhang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
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