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Formulation for the properties/structure relationship studies on leather dyestuffs / J. Berenguer in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIV, N° 2 (02-03/1999)
[article]
Titre : Formulation for the properties/structure relationship studies on leather dyestuffs Type de document : texte imprimé Auteurs : J. Berenguer, Auteur ; J. Rocas, Auteur ; M. Dien, Auteur Année de publication : 1999 Article en page(s) : p. 43-50 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The development of a new range of dyestuffs requires a large amount of both synthetic and application work. In order to reduce the number of experiments, it was necessary to develop tools that can give in advance an idea about some properties of the designed dyestuffs. Based on previous theoretical studies, an empirical formula was used to develop a new range of compatible dyestuffs with high fastness. This formula defined the socalled WHAI value, which is obtained by the divison of the molecular weight by the number of azo and ionic groups and the hydrophobicity of the dye. This approach is useful for synthesizing both metal and non metal complex dyes. The new dyes were screened with spectrophotometric measurements, dyeing on leather fibres, physical property measurements (solubility, stability to acids and alkalis...), leather dyeings, fastness and range combinability. Results shown in a previous communication are expanded with three new dyes, one of them being a non-metal complex. The application results showw the ability of the new range to obtain almost all the possible shades in deep, level dyeings. Note de contenu : - Properties/Structure relationship
- Dye synthesis
En ligne : https://drive.google.com/file/d/1HaMgGNxcXharMCRZ0mMk-0dI8--tuHE7/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4487
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIV, N° 2 (02-03/1999) . - p. 43-50[article]Réservation
Réserver ce documentRenewable energy to power tanneries / Luisa F. Cabeza in LEATHER INTERNATIONAL, Vol. 212, N° 4805 (11-12/2010)
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Titre : Renewable energy to power tanneries Type de document : texte imprimé Auteurs : Luisa F. Cabeza, Auteur ; Marc Medrano, Auteur ; J. Rocas, Auteur ; M. Nogués, Auteur Année de publication : 2010 Article en page(s) : p. 26-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Industrie -- Aspect de l'environnement
Electricité
Energie -- Production
Energie éolienne
Energie solaire
Energies renouvelables
EvaluationIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Energy supply has always been a high cost for tanneries. Thermal energy is usually supplied with fossil fuels. In previous papers, the authors have shown a real possibility in the use of renewable energies such a solar thermal energy in tanneries around the world. However, the amount of electricity needed in the tannery process is much higher and this electricity usually is taken from the grid. Lately, the price of this resource has been increasing rapidly. Up to now renewable energies for electricity production have not been considered and only a few tanneries, mainly in Europe, use cogeneration as electricity supply despite the economic benefits of this technology. In this paper, the authors will present a viability study for the use of renewable energies for electricity supply in tanneries. The renewable energies considered are solar photovoltaic energy and wind energy. Note de contenu : - Energy demand
- Energy production : Solar energy - Wind energy
- Economic evaluation
- Table 1 : Average requirements of energy from small tanneries
- Table 2 : Average energy demand in small tanneries
- Fig. 1 : Distance between tannery and electricity lineEn ligne : https://drive.google.com/file/d/1OsFlH-FlbD9COQfq_9CgPPnRCX5ygJqe/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35340
in LEATHER INTERNATIONAL > Vol. 212, N° 4805 (11-12/2010) . - p. 26-30[article]Réservation
Réserver ce documentUse of alternative energy sources in tanneries / Luisa F. Cabeza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 3 (05-06/2007)
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Titre : Use of alternative energy sources in tanneries Type de document : texte imprimé Auteurs : Luisa F. Cabeza, Auteur ; M. Nogués, Auteur ; J. Rocas, Auteur ; C. Solé, Auteur ; Josep Maria Morera, Auteur ; Esther Bartoli, Auteur Année de publication : 2007 Article en page(s) : p. 93-101 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cogénération La cogénération est la production simultanée de deux formes d’énergie différentes dans la même centrale. Le cas le plus fréquent est la production simultanée d'électricité et de chaleur utile par des moteurs thermiques ou des turbines à gaz.
La cogénération est une technique efficace d'utilisation des énergies fossiles et renouvelables, qui valorise une énergie généralement rejetée dans l'environnement, comme la chaleur.
(Wikipedia)
Cuirs et peaux -- Industrie
Énergie -- Consommation
Energie solaire
Energie thermiqueIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Rising prices of fossil fuels and growing environmental concern in society are leading governments to encourage energy efficiency in industry. The tannery industry uses large amounts of hot water, large amounts of heat for drying purposes and, finally, uses large amounts of electricity. In this paper a study of the possibilities of using alternative energy in tanneries is presented. Such sources are solar energy and co-generation. Note de contenu : - ANALYSIS OF THE THERMAL ENERGY DEMAND IN THE TANNERY : First alternative: use of solar energy with flat plate collectors - Description of the solar energy system - Second alternative: co-generation with microturbines - Description of the co-generation system - Economic evaluation
- Table 1 : Hot water - daily demand for one ton of raw hide processing
- Table 2 : Thermal energy necessary in the tannery
- Table 3 : Monthly average of solar daily irradiation on a collector (1)
- Table 4 : Monthly average of solar daily irradiation on a collector (2)
- Table 5 : Technical characteristics of microturbines available in the market
- Table 6 : Total budget of the solar energy system
- Table 7 : Total budget of the co-generation system
- Table 8 : Base data of the costs in the three systems studiedEn ligne : https://drive.google.com/file/d/1qt-5q37mlBe_oO6TEuRZocho3jM-icl3/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39026
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 91, N° 3 (05-06/2007) . - p. 93-101[article]