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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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Effect of artiticial heat ageing on the humidity sorption of parchment and lathers compared with archeological samples / G. M. M. Abdel-Maksoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 5 (09-10/2000)
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Titre : Effect of artiticial heat ageing on the humidity sorption of parchment and lathers compared with archeological samples Type de document : texte imprimé Auteurs : G. M. M. Abdel-Maksoud, Auteur ; E. marcinkowska, Auteur Année de publication : 2000 Article en page(s) : p. 219-222 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption
Adsorption
Antiquités (objets anciens) -- Analyse
Antiquités (objets anciens) -- Conservation et restauration
Cuirs et peaux -- Effets de l'humidité
Essais accélérés (technologie)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In Egypt there are many archaeological sites, museums, storehouses, old libraries and excavation areas. There are a large number of important parchment manuscripts and tanned leather (vegetable and chrome tanned leathers) artefacts that are in poor condition and at the same time are poorly preserved. This paper represents an attempt to experiment with artificial heat ageing at different temperatures (70°C, 100°C and 134°C) as an individual factor in following the changes in the ability of parchment and tanned leathers to absorb vapour water. These changes are compared with some samples of selected archaeolog ical parchment and tanned leathers in order to explain the deterioration mechanism of vapour water absorption so as to design and plan for the future conservation of parchment manuscripts and leather artefacts in Egypt.
The samples studied were placed with di-sodium hydrogen orthophosphate (Na,HPO 4’12H 20)in a desiccator and the humidity sorption was measured using a Mettler LP 16 Infrared Dryer. The results show that the humidity sorption of artificially aged samples was reduced as the time of ageing and temperature increased; and the humidity sorption of archaeological samples is adversely affected by the length of ageing and by environmental conditions. The results also show that the study of humidity sorption is vital in the field of conservation for studying deterioration and giving detailed information on parchment manuscripts and leather artefacts in order to facilitate the choice of an appropriate conservation treatment.Note de contenu : - Samples studied - New samples
- Archaeological samples
- Accelerated ageingEn ligne : https://drive.google.com/file/d/1u0gcgmjVjd2GRV1iOTjO_1Rf77krUDJf/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40921
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 84, N° 5 (09-10/2000) . - p. 219-222[article]Effect of calcium in delimed hide on leather quality / Chao Lei in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 3 (03/2023)
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Titre : Effect of calcium in delimed hide on leather quality Type de document : texte imprimé Auteurs : Chao Lei, Auteur ; Xuyang Chen, Auteur ; Yunhang Zeng, Auteur ; Bi Shi, Auteur Année de publication : 2023 Article en page(s) : p. 109-116 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Confitage Le 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.
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Analyse
Cuirs et peaux -- Qualité
Cuirs et peaux -- Teneur en calcium
DéchaulageOpération consistant à débarrasser les peaux de la chaux et des substances alcalines qui leur ont été appliquées au pelanage.
Post-tannage
Tannage au chromeIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The efficient removal of calcium from delimed hide is essential to leather quality, but few reports have elaborated on how residual calcium in delimed hide affects leather quality. In this study, four delimed hides containing different calcium content were first prepared by using ammonium sulfate and sodium gluconate. Energy dispersive X-ray spectrometry results showed that the atomic percentages of calcium on the grain surfaces of the four delimed hides were 8.17%, 4.82%, 2.34%, and 0.25%, respectively. The bating, chrome tanning, and post-tanning performances of the four delimed hides were then analyzed to evaluate the effect of calcium in delimed hide on leather quality. Results showed that the removal efficiency of non-collagenous protein from hide in enzymatic bating, the evenness of chromium distribution, the shrinkage temperature of wet blue, and the physical properties of crust leather all increased as the calcium content of delimed hide decreased. Furthermore, efficient calcium removal from the grain surface of delimed hide played a key role in the color brightness and uniformity of wet blue and crust leather. The results draw our attention to the importance of considering the effectual removal of calcium from delimed hide for obtaining high-quality leather. Note de contenu : - EXPERIMENTAL : Materials - Deliming experiments and evaluation of deliming performance - Bating experiments and evaluation of bating performance - Tanning experiments and evaluation of tanning performance - Post-tanning experiments and evaluation of crust leather performance
- RESULTS AND DISCUSSION : Preparation of delimed hides with different calcium contents - Effect of calcium in delimed hide on bating performance - Effect of calcium in delimed hide on chrome tanning performance - Effect of calcium in delimed hide properties of crust leather
- Table 1 : Color parameters of the wet blue
- Table 2 : Color parameters of the crust leathers
- Table 3 : Physical properties of the crust leathersDOI : https://doi.org/10.34314/jalca.v118i3.6814 En ligne : https://drive.google.com/file/d/1n_-gOygNCeRyRRHTXA8LSWDtFa7g5kkf/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39001
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVIII, N° 3 (03/2023) . - p. 109-116[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23921 - Périodique Bibliothèque principale Documentaires Disponible Effect of cationisation on reactive printing of leather and wool / A. A. Haroun in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 2 (03-04/2006)
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Titre : Effect of cationisation on reactive printing of leather and wool Type de document : texte imprimé Auteurs : A. A. Haroun, Auteur ; H. F. Mansour, Auteur Année de publication : 2006 Article en page(s) : p. 80-86 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cationisation
Cuir
Impression sur cuir
Impression sur laine
Laine
Photostabilité
Résistance au lavageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The resurgent interest in leather and wool clothing has led to developments in brilliant colours with different shades on leather and wool that hold promise for re-opening this market for the two substrates. It is necessary to use more than one class of dyestuff under variety of conditions in this work and to modify the two components before printing. Fibre reactive dyes with three different reactive groups, mono-chloro triazine (Cibacron Yellow P6GS), dichloro-triazine (Procion Red MX-5B) and vinyl sulphone (Remazol Brilliant Orange FR), were used to print both unmodified and modified, i.e. cationised leather and wool substrates using Tenofix Extra ECO and Solfix E cationic reagents. Pre-cationisation of leather and wool brings about an improvement in the depth of the prints as well as in washing and light fastness properties. Note de contenu : - EXPERIMENTAL : Materials - Methods
- RESULTS AND DISCUSSION : Cationic effect - Steaming - Fastness properties -
- Table 1 : Effect of the cationisation treatment on the nitrogen content of both substrates
- Table 2 : Effect of pre-cationisation on the fastness properties of the printed leather and wool samplesEn ligne : https://drive.google.com/file/d/1WIQUCw1xQFfaqnalPi9pqyruFY-IIKYR/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39161
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 2 (03-04/2006) . - p. 80-86[article]Effect of chrominium in blue hides on activity of microbial transglutaminase / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 6 (06/2010)
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Titre : Effect of chrominium in blue hides on activity of microbial transglutaminase Type de document : texte imprimé Auteurs : Maryann M. Taylor, Auteur ; J. Lee, Auteur ; Lorelei P. Bumanlag, Auteur ; Eduard Hernà ndez Balada, Auteur ; Eleanor M. Brown, Auteur Année de publication : 2010 Article en page(s) : p. 175-180 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Microbial transglutaminase (mTgase) has been used in the modification of proteins from sustainable resources to make products that have application in leather production. It has also been successfully used to treat blue stock, prior to addition of the products, for the purpose of stabilizing the fillers and lessening the chance that they will be washed out during further processing steps. There is always a concern that metals may have an effect (either positively or negatively) on the enzyme's activity and literature has addressed many of these issues. However, one area that has not been addressed is whether chromium may affect activity of mTgase. Even though we have only seen positive results after hide treatment with enzyme, we designed an experiment to elucidate this matter. Using Atomic Absorption Spectroscopy (AAS), we first determined the concentration of chromium in the floats during the processing of the hides. When the hides were washed and then neutralized, the concentration of unbound chromium was found to be less than 5 ppm. Next, to test mTgase sensitivity, we carried out activity assays in absence and presence of chromium and found that activity results were similar. We prepared a model system in which gelatin, swollen and solubilized in solutions containing chromium, was reacted with mTgase using standard conditions. It was found, when compared to a control, that the reaction proceeded at the same rate (chemical gel formed in 2 h @ 50°C), and the physical properties and molecular weight distributions (SDS-PAGE) of the products were similar. Finally, epi-fluorescent microscopy studies showed that enzyme-pretreatment, when compared to a control in which no enzyme pretreatment was applied, prevented migration of the fillers during subsequent processing steps. Thus, under the conditions in which we treat wet blue hides, the chromium used to tan the hides does not affect enzyme activity Note de contenu : EXPERIMENTAL : MATERIALS
METHODS : Treatment of blue stock for chromium analyses of floats - Treatment of gelatin with enzyme - Treatment of blue stock for epi fluorescent microscopy studies.
ANALYSES : Measurement of mTgase activity - Physical properties, molecular weight distribution and chromium analysis - Epi-fluorescent microscopy.
RESULTS AND DISCUSSION : Chromium analyses of treatment floats - Reaction of gelatin with mTgase in presence of chromium - Epi-fluorescent microscopy studies of treated blue stock.En ligne : https://drive.google.com/file/d/1QPR2TZzLFNQkDcYtt-XjGCN0CEa8sy65/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9452
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 6 (06/2010) . - p. 175-180[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012187 - Périodique Bibliothèque principale Documentaires Disponible Effect of co-combustion of tannery sludge and coal on the migration of Cr in the bottom ash / Jianfei Zhou in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 1 (01-02/2014)
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Titre : Effect of co-combustion of tannery sludge and coal on the migration of Cr in the bottom ash Type de document : texte imprimé Auteurs : Jianfei Zhou, Auteur ; Ya-Nan Wang, Auteur ; Xuepin Liao, Auteur ; Wenhua Zhang, Auteur ; Bi Shi, Auteur Année de publication : 2014 Article en page(s) : p. 35-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Boues résiduaires -- Analyse
Chrome
Combustion
Déchets industriels -- Elimination
Tannage -- DéchetsIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The feasibility of co-combustion of tannery sludge and coal as well as mono-combustion of the sludge was analyzed by tracking the migration of Cr in the sludge and its bottom ash. Most of the Cr was found to be fixed in the bottom ash during combustion when the temperature was not over 600°C. For further analysis of the migration behaviour of Cr after combustion, speciation of Cr in bottom ash was determined by BCR (Community Bureau of Reference) method. It was found that a great deal of Cr was converted from oxidizable fraction in sludge to exchangeable fraction in bottom ash. Moreover, acid leaching test indicated Cr stabilized in the original sludge became easier to leach from the bottom ash. These facts suggest the environmental risk of Cr in the ash is much higher than in the original sludge. Therefore, co-combustion of sludge and coal without any further treatment is not a feasible way to dispose of Cr enriched tannery sludge. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Sample preparation - Characteristics of tannery sludge - Co-combustion of tannery sludge and coal - Analytical methods
- RESULTS AND DISCUSSION : Characteristics of tannery sludge - Contents of Cr in bottom ashes - Speciation of Cr in bottom ashesEn ligne : https://drive.google.com/file/d/1Pjkbk-U_COgMr5D--vf1eALaOW3_ItQE/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21017
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 98, N° 1 (01-02/2014) . - p. 35-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16162 - Périodique Bibliothèque principale Documentaires Disponible Effect of cyclic stress on the structure and mechanical properties of leather / Keyong Tang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 104, N° 4 (07-08/2020)
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PermalinkEffect of cyclic stress while being dried on the mechanical properties and thermostability of leathers / Jinbao Huang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 10 (10/2018)
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PermalinkEffect of deionization on the physical properties of gelable protein products recovered from solid tannery waste / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXX, N° 12 (12/1995)
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PermalinkEffect of different unhairing methods on the ionic liquid based fiber opening process / Z. Mohammad Jamal Azhar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 6 (06/2016)
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PermalinkEffect of electrostatic interaction between collagen and enzymes on permeation of protease into the pelt during leather bating process / Yiwen Zhu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 10 (10/2023)
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PermalinkEffect of enzymatic soaking on properties of hide and the leather produced / Virgilijus Valeika in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 2 (03-04/2019)
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PermalinkEffect of enzymatic treatment in leather manufacture at different processing stage / Gladstone Christopher Jayakumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 12 (12/2022)
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PermalinkEffect of fatliquoring on grain and corium quality of leather assessed by ball bursting and tearing tests / Albert M. Manich in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 4 (04/2016)
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PermalinkEffect of fatliquoring on leather comfort. Part III : Moisture absorption-desorption of leather / Albert M. Manich in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 10 (10/2017)
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PermalinkEffect of fillers prepared from enzymatically modified proteins on mechanical properties of leather / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 4 (04/2008)
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PermalinkEffect of finishing auxiliaries on permeability of leathers / Murali Sathish in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 11 (11/2015)
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PermalinkEffect of finishing density on the physico-mechanical properties of leather / Sevgi Nalbat in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 2 (03-04/2016)
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PermalinkEffect of genipin on the thermal stability of hide powder / Keyi Ding in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 10 (10/2006)
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PermalinkEffect of hyaluronic acid on the properties of chrome-tanned leather / M. A. R. Siddique in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 2 (03-04/2015)
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PermalinkEffect of hydrophilic chain extenders on properties of hyperbranched waterborne polyurethane / Wang Xuechuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 2 (03-04/2016)
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PermalinkEffect of hydrophilic or hydrophobic interactions on the self-assembly behavior and micro-morphology of a collagen mimetic peptide / Xiaomin Luo in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
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PermalinkEffect of ionic liquids pretreatment on the extraction of collagen from calf skin / Sicong Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 10 (10/2019)
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PermalinkEffect of masked chromium complexes on thermal stability of collagen / K. Takenouchi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 79, N° 6 (11-12/1995)
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PermalinkEffect of neutral salt on pickling and tanning - A study based on assembly behaviour of collagen / Wei Xiangyi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 1 (01-02/2014)
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PermalinkEffect of novel synthetic clay on the property of waterborne polyurethane leather finishing agent: enhanced thermal, mechanical and UV-resistant performance / Wang Chunhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 3 (05-06/2018)
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