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Ajouter le résultat dans votre panierThe changing role of the UK tannery manager / Raymond Blakey in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 5 (09-10/2012)
Titre : The changing role of the UK tannery manager Type de document : texte imprimé Auteurs : Raymond Blakey, Auteur Année de publication : 2012 Article en page(s) : p. 179-182 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Gestion d'entreprise
TannageIndex. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : - In the beginning...
- The leather chemist arrives
- Scientific development in Europe
- Disruption and depression
- Competition, consumerism and controls
- Sustainable development
- We are we heading ?
- Future technologyEn ligne : https://drive.google.com/file/d/1gA7pJzdONfoRHlVyDGd_dUmDUEbXH6Bo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16192
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 179-182[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14228 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Flow injection spectrophotometric determination of proteins in tannery effluents Type de document : texte imprimé Auteurs : Yu Lan, Auteur ; Yu Lingyun, Auteur ; Zhang Xinshen, Auteur Année de publication : 2012 Article en page(s) : p. 183-188 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eaux usées -- Analyse
Eaux usées -- Teneur en protéines
Spectrophotométrie
TannageIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : A rapid and sensitive flow injection spectrophotometric method is described for the determination of proteins based on the principle that Aluminum-Alizarin Red S-bovine serum albumin (BSA)-Triton X-100 complex reacts rapidly with proteins to form complexes in pH4.0 weak acid medium, which causes the change of absorption spectra, the maximum absorption peak of the system is located at 500nm. The absorbance difference is linearly related with the concentration of BSA over the range of 5-120mg l-1. The detection limit of the method was 1.42mg l-1. The method was successfully used to determine protein content in leather wastewater samples and the determined results were in good agreement with the spectrophotometry. The relative standard deviation for 11 replicate determinations of the method was 1.12% for 60mg l-1. The standard addition recovery of the method was from 101.29% to 117.32%. Note de contenu : - EXPERIMENTAL PROCEDURES : Reagents and solutions - Apparatus - Analytical procedure
- RESULTS AND DISCUSSION : Choice of the detection wavelength - Effect of chemical reaction variables
- Effect of flow injection variables - Calibration curve, reproducibility and detection limitEn ligne : https://drive.google.com/file/d/1sQ5EC3XUWEbN3sdr7LDKmCP4WsX2_Mk1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16194
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 183-188[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14228 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Preparation and application of denatured starches Type de document : texte imprimé Auteurs : Du Xiaosheng, Auteur ; Chen Hui, Auteur ; Dai Rui, Auteur ; Shan Zhihua, Auteur Année de publication : 2012 Article en page(s) : p. 189-194 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Amidons -- Oxydation
Charges (matériaux)
Cuirs et peaux
HydrolyseIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Denatured Starches I and II were obtained by single-oxidation and double-oxidation of acidic hydrolysing starch. Denature Starch II possessed more carboxyl groups and a smaller particle size than Denatured Starch I. The two denatured starches developed in this research and several typical fillers were applied to chrome-tanned crust leather. The contrasting results of filling showed that Denatured Starch II has some characteristics with obvious differences from other fillings. The leather sample filled with Denatured Starch II showed obvious sample filled with Denatured Starch I showed significant softness, large elongation, and low hypsochromic effects. The leather samples filled with Denatured Starch I and II showed low moisture contents, favourable water vapour permeability, and the morphological characteristics of fibre bundles. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials and instruments - Preparation of oxidised starches - Carbonyl and carboxyl contents particle size - Application in leather filling - Shrinkage temperature and thickness increment - Determination of colour difference - Physico-mechanical tests - Scanning electron microscopic examination
- RESULTS AND DISCUSSION : Carbonyl and carboxyl group contents and particle size - Shrinkage temperature and thickness after filling - Effects of different fillers on leather colour values - Physical test results of leathers - Effects of different fillers on leather water vapour permeability and moisture content - Scanning electron microscopic analysisEn ligne : https://drive.google.com/file/d/1GVzluIJVBoyw4S39TKYokwp2VqlJB7db/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16199
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 189-194[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14228 - Périodique Bibliothèque principale Documentaires Disponible
Titre : On-line determination of nitrite in tannery effluent by flow injection analysis Type de document : texte imprimé Auteurs : Li Hui, Auteur ; Zhang Xinshen, Auteur ; Yu Lingyun, Auteur ; Chen Shujuan, Auteur Année de publication : 2012 Article en page(s) : p. 195-199 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eaux usées -- Analyse
Eaux usées -- Teneur en nitrites
Spectrophotométrie
TannageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In order to control the pollution by nitrite, a direct spectrophotometric flow injection method for the determination of nitrite in tannery effluents has been developed. The method is based on the diazotized intramolecular coupling of a 4-amino-5hydroxynaphthalene-2,7-disulfonic acid monosodium salt hydrate (AHNDMS) by the addition of nitrite in a phosphate buffer solution of pH7.5 and the increase in absorbance of the purple complex is monitored at 550nm. Chemical factors and FIA variables affecting the system are also discussed. Under the optimal conditions, the linear range of this method was 20-1500µg l-1 ; the detection limit was 0.15µg l-1 ; the relative standard deviation was 0.67 % (n=11, 450µg l-1). This method was suitable for automatic and continuous analysis, and successfully applied to determine the content of nitrite in tannery effluent. Note de contenu : - EXPERIMENTAL PROCEDURE : Apparatus - Reagents - Procedure
- RESULTS AND DISCUSSION : Detection wavelength - Optimization of flow injection variables - Effect of chemical reaction variables - Analytical figures of meritEn ligne : https://drive.google.com/file/d/14r-HRCBvrd6xQJ2BYkjkdATkz2GBFyi-/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16200
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 195-199[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14228 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Using a mobile chiller for hides : a green method to resolve the TDS problem Type de document : texte imprimé Auteurs : Chandra Babu Narasimhan Kannan, Auteur ; R. Thiagu, Auteur ; R. Karthikeyan, Auteur ; B. Swarna Kumari, Auteur ; R. Ramesh, Auteur ; S. Sadulla, Auteur Année de publication : 2012 Article en page(s) : p. 200-207 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Conservation
Entreposage frigorifique
Réfrigération et appareils frigorifiquesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A mobile chiller suitable for salt-free preservation and storage of 2 tons of raw hides and skins has been designed and fabricated. Experiments conducted with the mobilechiller to preserve hides indicates that it is possible to chill the hides to 4°C in less than 1 hour. Studies on degradation of hides during thawing show that the safe duration of transportation of thilled hides in insulated containers might be about 15 hours. The results also confirm that a considerable reduction in TDS (total dissolved solids) and chloride pollution loads can be achieved, without any adverse effect on the final quality of the leathers, by the adoption of the chilling method in place of conventional salt curing. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials and methods - Design and fabrication of the mobile chiller - Study of chilling and thawing profiles for cow and buffalo hides - Study of degradation of cow hide during thawing process
- PROCESSING OF CHILLED HIDES INTO LEATHERSEn ligne : https://drive.google.com/file/d/1lb7sTBPLSq2iNbwpuHMTCMGg9rrQinC8/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16201
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 200-207[article]Réservation
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Titre : In situ spectroscopic study on the effect of UV radiation on stabilized collagen fibre : role of plant tannin Type de document : texte imprimé Auteurs : Liang Zhongyin, Auteur ; Shan Zhihua, Auteur Année de publication : 2012 Article en page(s) : p. 210-214 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Collagène -- Effets du rayonnement ultraviolet
Fourier, Spectroscopie infrarouge à transformée de
Tanins végétauxIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Ultraviolet-visible diffuse reflection (UV-Vis DR) spectroscopy and Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) spectroscopy were employed to investigate the influence of deleterious UV radiation on the pure collagen fibre and plant tannin crosslinked collagen fibre. After exposure to UV radiation, the UV-Vis abosorption intensity of the pure collagen fibre is found to be dramatically increased at eh peak of 280nm, which should be attributed to the increase of photo-products of free tyrosine and phenylamine formed by UV radiation damage. However, the damage effect on collagen fibre is significantly hindered in the presence of barberry tannin. On the other hand, the study of ATR FT-IR spectroscopy also showed that the intensities of amid bands (amide A, B, I and II) of pure collagen fibre. In addition, the weakness tannin stabilized collagen fibre are less than those in the case of pure collagen fibre. In addition, the weakness of C-O-H in-plane deformation vibration and the stretching vibration of phenolic hydroxyls suggested that the UV protection effect of barberry tannin on collagen fibre should be closely related to the photoxidation of phenolichydroxyls in bayberry tannin molecule. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - UV irradiation - UV-Vis DR spectroscopic measurements - ATR FT-IR spectroscopic measurements
- RESULTS AND DISCUSSION : UV-vis DR spectra analysis - ATR- FT-IR spectral analysisEn ligne : https://drive.google.com/file/d/1m-dKDrpLvyHKSaM6m8GjPMPf4pRWQXth/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16202
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 210-214[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14228 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Rapid determination of nitrate in tannery effluent by reverse flow injection analysis Type de document : texte imprimé Auteurs : Xiao Kai, Auteur ; Yu Lingyun, Auteur ; Zhang Xinshen, Auteur ; Yu Lan, Auteur Année de publication : 2012 Article en page(s) : p. 215-219 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eaux usées -- Analyse
Eaux usées -- Teneur en nitrates
Spectrophotométrie
TannageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In order to control the pollution by nitrate, a simple, accurate and sensitive reverse flow injection analysis (rFIA) spectrophotometric method for determination of nitrate in tannery effluent is proposed in this paper. Firstly, in alkaline medium and with copper ion as catalyst, nitrate is reduced to nitrite by hydrazine sulfate. Then in acid condition, nitrate and sulfanilamide are diazotized. The diazo material is then coupled with N-1-naphthyl ethylenediamine hydrochloride (NEH) to form a red product. The absorbance of the complex compounds is measured at 540nm. Chemical factors ad rFIA variables affecting the system are also discussed. Under the otimal conditions, the linear range of this method was 50-5000µg l-1 ; the detection limit was 7µg l-1 ; the relative standard deviation was 0.844%. This method was suitable for automatic and continuous analysis, and successfully applied to determine the content of nitrate in tannery effluent. Note de contenu : - EXPERIMENTAL PROCEDURE : Apparatus - Reagents - Procedure
- RESULTS AND DISCUSSION : Detection principle
- ANALYTICAL PROCESS PARAMETERS : Other factors examinedEn ligne : https://drive.google.com/file/d/1SwD9lHJItN9viiIjqPA3Qb30qjtjBbJL/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16207
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 215-219[article]Réservation
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| Code-barres | Cote | Support | Localisation | Section | Disponibilité |
|---|---|---|---|---|---|
| 14228 | - | Périodique | Bibliothèque principale | Documentaires | Disponible |
