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Emploi de l'extrait de mimosa dans le tannage rapide des peaux légères / J. H. Atkinson / London [United Kingdom] : Wattle Export Development (n.d.)
Titre : Emploi de l'extrait de mimosa dans le tannage rapide des peaux légères Type de document : texte imprimé Auteurs : J. H. Atkinson, Auteur ; N. J. Cutting, Auteur Editeur : London [United Kingdom] : Wattle Export Development Année de publication : n.d. Collection : Bulletin technique num. 1 Importance : 12 p. Présentation : ill. Format : 23 cm Note générale : Bibliogr. Langues : Français (fre) Catégories : Mimosa et constituants
Tanins végétaux
Tannage végétalIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : On décrit une méthode pratique de tannage rapide au tonneau convenant à plusieurs catégories de peaux légères et l'on discute des conditions opérationnelles optima pour ce type de tannage. Observations sur la qualité du cuir obtenu par cette méthode à l'échelle industrielle et les économies qui peuvent en résulter. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10166 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 2919 675.2 ATK Monographie Bibliothèque principale Documentaires Disponible 21474 675.2 ATK Monographie Bibliothèque principale Documentaires Disponible Documents numériques
Emploi de l'extrait de mimosa dans le tannage rapide des peaux légèresURL Etude des propriétés tannantes des sels d'aluminium / Philippe Charlet / 1982
Titre : Etude des propriétés tannantes des sels d'aluminium Type de document : texte imprimé Auteurs : Philippe Charlet, Auteur ; Germaine Thomas, Directeur de thèse ; Université Claude Bernard (Lyon), Organisme de soutenance Année de publication : 1982 Importance : 180 p. Présentation : ill. Format : 30 cm Note générale : Bibliogr. Langues : Français (fre) Catégories : Collagène
Cuirs et peaux
Sels métalliques
Syntans
Tanins végétaux
Tannage
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminium
Température de retrait
Thèses et écrits académiquesIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Note de contenu : - 1. STRUCTURE DU COLLAGENE : Structure spatiale du collagène - Structure primaire du collagène
- 2. LES DIFFERENTS TANINS ET LA COMPREHENSION DU TANNAGE : Généralités - Le tannage minéral - Les Tanins végétaux - Les tanins synthétiques - Le tannage combiné
- 3. DETERMINATION DE LA QUALITE DU TANNAGE PAR LA TEMPERATURE DE RETRACTION : Technique de mesure et appareillage - Nature de la rétraction - RésultatsThèse : Thèse. Spécialité Chimie analytique : Université Claude Bernard - Lyon 1 : 1982 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=1839 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 0263 TH/1982/CHA Thèse, mémoire, etc... Bibliothèque principale Documentaires Disponible Evaluation 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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Titre : Evaluation of environmental impact of typical leather chemicals. Part 3 : Biodegradability of vegetable tannin extracts by activated sludge Type de document : texte imprimé Auteurs : Qiang He, Auteur ; Danhong Sun, Auteur ; Xin Liu, Auteur ; Lin Wei, Auteur ; Bi Shi, Auteur Année de publication : 2008 Article en page(s) : p. 103-106 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biodégradation
Boues résiduaires -- Analyse
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Déchets industriels -- Elimination
Environnement -- Etudes d'impact
Tanins végétauxIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The short-term (5 day) and long-term (30 day) biodegradation behaviours of black wattle, bayberry, valonia and chestnut tannin extracts were systematically investigated in this paper. The results indicated that all of these four vegetable tannin extracts are biodegradable although they might retard the biodegradation process to some extent owing to the inhibitory effect of tannins on the activated sludge process. Short-term biodegradabilities of the four tannin extracts were concentration-dependent. These tannin extracts could be effectively biodegraded in 5 days at concentrations of 0.25g/L, but the biodegradation process was retarded remarkably when the concentrations were increased to 5.00g/L. In general, short-term biodegradabilities of the four tannin extracts follow the sequence of valonia tannin>chestnut tannin>bayberry tannin>wattle tannin, implying that the hydrolysable tannins are easier to biodegrade than the condensed tannins. The results of long-term biodegradation showed that all of the four vegetable tannin extracts can be completely biodegraded by prolonging the activated sludge process, even if they are present at high concentration. Therefore, the encouraging findings in this research suggest that vegetable tannin extracts are environmentally friendly leather chemicals. Note de contenu : - BOD5/COD values of vegetable tannin extracts
- Respiration of activatedslud ge in the presence of vegetable tannin extracts
- COD removals of vegetable tannin extracts by the activatedslud ge process
- COD removals (%) of vegetable tannin extracts at different concentrations
- Table 1 : Type andtannin content of vegetable tannin extracts tested in experiments
- Table 2 : BOD5 /COD values of vegetable tannin extracts at different concentrationsEn ligne : https://drive.google.com/file/d/1rkdcAB3YoMjEm3urqqTf-HjnXnzkK-x3/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38954
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 92, N° 3 (05-06/2008) . - p. 103-106[article]Evaluation 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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Titre : Evaluation of potential application for sunt pod extracts (Acacia nilotica) in leather tanning Type de document : texte imprimé Auteurs : A. I. Nasr, Auteur ; Hardy Mueller, Auteur ; M. M. Abdelsalam, Auteur ; A. H. Azzam, Auteur ; C. Jungandreas, Auteur ; W. Poppitz, Auteur Année de publication : 2017 Article en page(s) : p. 23-32 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acacia et constituants
Additifs
Analyse spectrale
Colorimétrie
Cuirs et peaux de moutons
Extraction (chimie)
Phénols
Tanins végétaux
Tannage végétal -- Analyse
ViscositéIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The current investigation was carried out to evaluate the efficiency of using sunt, Acacia nilotica, pods extract in leather tanning. Skins from 16 Barki rams aged 12-18 months were cured and prepared for tanning using sunt pod extract. The sunt pods were collected and dried at 25°C for 5 days. Thereafter, the dried pods were ground by a 0.3 mm fineness grinder and were further subjected to the extraction procedure. Three chemical additives, namely NaOH, Na2SO3 and Na2CO3 were used for the extraction at 70 and 90°C. The influences of both types of chemical additive and extraction temperature on extraction yield were determined. The extract characteristics in terms of stiasny number, hide powder, tannins, non-tannins and total phenol contents were also analyzed. The results showed that increasing extraction temperature increased (P<0.05) extraction yield and improved the quality of the extract regardless of chemical additive type. Meanwhile, the extraction using either Na2SO3 in aqueous solution or by water at 90°C yielded the best extract characteristics. The elevated concentrations of condensed and hydrolysable tannins obtained in our results point to the possibility of utilizing sunt pod extract in tanning or re-tanning of leather rather than using traditional tanning reagents. Note de contenu : - EXPERIMENTAL : Raw material - Extraction procedure and experimental design - Total phenol and tannins content - Hide powder test - Stiasny number - Fourier Transform Infrared Spectrometry (FTIR) - Mass spectrometry (MS) - Determination of viscosity - Vis-spectroscopy and color measurement - Tanning procedure - Determination of leather
- RESULTS AND DISCUSSION : Extracts quality determination - Leather propertiesEn ligne : https://drive.google.com/file/d/1hA-XvIKsJlNx9HrDZywbDOC-wlmhhObt/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27566
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 1 (01/2017) . - p. 23-32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18607 - Périodique Bibliothèque principale Documentaires Disponible Extract of trema orientalis (L.) Stem Bark : A potential source of environmentally friendly tanning agent for leather industry / Murshid Jaman Chowdhury in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 1 (01/2022)
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Titre : Extract of trema orientalis (L.) Stem Bark : A potential source of environmentally friendly tanning agent for leather industry Type de document : texte imprimé Auteurs : Murshid Jaman Chowdhury, Auteur ; Abdur Razzaq, Auteur ; Imran Biswas, Auteur ; Ariful Hai Quadery, Auteur ; Tushar Uddin, Auteur Année de publication : 2022 Article en page(s) : p. 28-34 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Agents de tannage
Caractérisation
Cuirs et peaux -- Analyse
Extraction (chimie)
Retannage
Tanins végétaux
Tannage végétal
Trema orientalisTrema orientalis est une espèce de plantes arborescentes. Elle appartient à la famille des Ulmaceae ou Celtidaceae selon la classification classique ou à celle des Cannabaceae selon la classification phylogénétique.
On le trouve en Afrique du Sud jusqu'en Afrique tropicale ainsi que dans les régions chaudes d'Asie. Il a été naturalisé à Hawaï.Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Researchers around the world are in continuous endeavor to develop environment friendly tanning agent due to adverse effect of conventionally used chromium during leather tanning. Recent trend of tanning is thus heading to chrome-free and greener chemical processing options. Vegetable tanning is an exoteric leather processing technique because of their lower pollution load on the environment. Considering the inadequacy and high costing for the commercialized tannins, development of alternative tannins from locally available plants and their characterizations are important. In this research, the stem barks of Trema Orientalis (L.) were extracted at different temperatures employing water solvent with or without additives (sodium hydroxide or sodium sulphite) to attain phenolic-rich extractives. To ascertain appropriateness as a vegetable tanning agent, the obtained extracts were thereafter characterized in respect to yield, total phenolic content, tannin content and molecular structure. The extraction yield for all extracts improves and the quality remains nearly unchanged with temperature rising. The elevated concentration of chemical additives enhances the extraction yield but lessens the quality of extracts. In terms of extraction yield and the quality of extracts the best condition for extraction was discerned at 80°C with water solvent. This water extract has a decent extent of phenolic and tannin content of 266.13 mg Gallic acid equivalent/ gm of dry extract and 30.12 % respectively. The final extract exhibits excellent leather retanning tendency comparable to the commercial quebracho tannins. Note de contenu : - EXPERIMENTAL : Materials - Extraction process and yield of extract calculation - Total phenolic content determination - Determination of tannin content - Identification of tannin class by FT-IR spectroscopic method - Retanning process of leather - Characteristics of retanned leather
- RESULTS AND DISCUSSION : Extraction yield - Characterization of extract - Total phenolic content and tannin content - FT-IR analysis - Characterization of retanned leather
- Table 1 : Extraction yield and characteristics of T. Orientalis stem bark extracts and quebracho tannin
- Table 2 : Characterization of retanned leatherDOI : https://doi.org/10.34314/jalca.v117i1.4696 En ligne : https://drive.google.com/file/d/1qJhz2H1tTtDzYmKke6Qlq9Ry3ElkGsb9/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37028
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Code-barres Cote Support Localisation Section Disponibilité 23238 - Périodique Bibliothèque principale Documentaires Disponible Extraction of a novel tanning agent from indigenous plant bark and its application in leather processing / Raju Kumar Das in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 4 (Année 2022)
PermalinkL'extrait de châtaignier et son utilisation rationnelle en tannerie / Châtaignier France (Paris) / Paris : Châtaignier France (n.d.)
PermalinkFeasibility assessment of the identification of the source of condensed tannins in leathers by FTIR spectroscopy and chemometrics / Alireza Koochzakzaei in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 12 (12/2022)
PermalinkFunctional fillers for blocking wood stains / Maria Parry in EUROPEAN COATINGS JOURNAL (ECJ), N° 9 (09/2018)
PermalinkPermalinkPermalinkIn situ spectroscopic study on the effect of UV radiation on stabilized collagen fibre : role of plant tannin / Liang Zhongyin in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 5 (09-10/2012)
PermalinkInvestigations of vegetable tannins as hair dyes and their interactions with pre-bleached hair fibres / L. Sargsyan in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 42, N° 4 (08/2020)
PermalinkLipid nanoparticles and spontaneous precipitation of a fatliquoring agent / Xu-Gang Dang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 4 (07-08/2016)
PermalinkLow carbon products for the design of innovative leather processes. Part I : Determination of the optimal chemical modification of tara / Anna Bacardit in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 10 (10/2013)
PermalinkLow carbon products to design innovative leather processes. Part III : optimization of an eco-friendly formulation using tara / Anna Bacardit in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 9 (09/2015)
PermalinkMechanism of vegetable extracts on preventing the oxidation of chrome(III) / Ma Xingyuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 6 (11-12/2018)
PermalinkPermalinkMolecular weights and tanning properties of tannin fractions from acacia mangium bark / Teng Bo in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 97, N° 5 (09-10/2013)
PermalinkPermalinkA novel way to avoid Cr(VI) formation in leather : copper mordanting / Cigdem Kilicarislan Ozkan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 2 (03-04/2017)
PermalinkL'or vert, nouvel eldorado du cuir ? / Juliette Sebille in LEATHER FASHION DESIGN (LFD), N° 1 (02/2019)
PermalinkOxidising degradation of Valonia extract and utilisation of the products. Part 1. Oxidising degradation of Valonia extract and characterisation of the products / Bi Shi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 6 (11-12/2000)
PermalinkOxidizing degradation of Valonia extract and utilization of the products - Part 3 : Auxiliary tanning effects of degraded producs using 20% and 30% H202 / Ying Di in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 85, N° 5 (09-10/2001)
PermalinkPhytochemical screening and determination of tannin content of compounds from acacia xanthophloea as viable tanning agents for the leather industry / Michael Cheloti in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 106, N° 5 (09-10/2022)
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