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Study of aqueous patent leather finish with a pull-up effect / Anna Bacardit in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 3 (03/2009)
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Titre : Study of aqueous patent leather finish with a pull-up effect Type de document : texte imprimé Auteurs : Anna Bacardit, Auteur ; Lluis Ollé, Auteur ; Josep Maria Morera, Auteur ; Esther Bartoli, Auteur ; Rosa M. Cuadros, Auteur ; Mira Cobos, Auteur Année de publication : 2009 Article en page(s) : p. 103-112 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In response to the current needs of the leather market, competing manufacturers have to be flexible, adaptable and quick at producing leather goods that are both technologically innovative and fashionable. A new coating formulation has been studied in order to obtain an article which meets these two characteristics. The present study aims to obtain a patent leather finish with a pull-up effect. In addition, it aims to make improvements in the process by replacing the usual solvent based patent top with an aqueous patent topcoat. As a result, the article obtained in industrial scale complies with the European Union Council Directive 1999/13/EC of 11 march 1999 (on the limitation of emissions of volatile organic compounds due to the use of organic solvents in certain activities and installations).
The finished leathers obtained with this new coating formulation are transparent, smooth, with a glossy look (almost glass-like) and with an accentuated pull-up effect. All the necessary requirements for shoes uppers and leather goods are met.En ligne : https://drive.google.com/file/d/1A0Fqt3pqPVCS8yJCt7EcXGCe3vkimJrn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4481
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Code-barres Cote Support Localisation Section Disponibilité 011170 - Périodique Bibliothèque principale Documentaires Disponible Study of a chrome tanning process without float and with low-salt content as compared to a traditional process. Part II / Josep Maria Morera in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 12 (12/2006)
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Titre : Study of a chrome tanning process without float and with low-salt content as compared to a traditional process. Part II Type de document : texte imprimé Auteurs : Josep Maria Morera, Auteur ; Anna Bacardit, Auteur ; Lluis Ollé, Auteur ; J. Costa, Auteur ; Heinz-Peter Germann, Auteur Année de publication : 2006 Article en page(s) : p. 454-460 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The process of pickle-tanning results in the significant pollution of wastewaters through the presence of chrome and chlorides. A new process has been studied in order to reduce the negative environmental effect that pickle-tanning causes on leather making. The new process involves a pickle without float and with minimum salt offer as well as the substitution of the inorganic acid by a sulphoaromatic acid. By doing so, the required additions of chrome salt and salt are minimized and this results in high levels of chromium exhaustion in the residual float. When this process is compared to the traditional one, the results obtained indicate that there is a 78 percent reduction in residual float volume, a 93 percent reduction in chlorides content in the effluent and a 95 percent reduction in chrome content in the float. En ligne : https://drive.google.com/file/d/1YfNzvhnRc2AMMYbbn0Myy9IC5c1V0jp1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3854
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Code-barres Cote Support Localisation Section Disponibilité 005986 - Périodique Bibliothèque principale Documentaires Disponible Study of a chrome tanning process without float and with low-salt content compared to a traditional process. Part I / Josep Maria Morera in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 7 (07/2006)
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Titre : Study of a chrome tanning process without float and with low-salt content compared to a traditional process. Part I Type de document : texte imprimé Auteurs : Josep Maria Morera, Auteur ; Heinz-Peter Germann, Auteur ; J. Costa, Auteur ; Lluis Ollé, Auteur ; Anna Bacardit, Auteur Année de publication : 2006 Article en page(s) : p. 254-259 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The traditional chrome-tanning process poses several disadvantages from the environmental point of view including effluent volume as well as chromium and chloride content. We have thus modified the process in order to minimize these disadvantages. The tanning process has been carried out with almost no float by simply utilizing the float already contained in the hide. As there is very little water, the quantity of sodium chloride required to avoid the swelling of the skin decreases sharply, due to the acidic conditions. In a corresponding manner, the mechanical work on the skin increases and the fixation of chrome salt is greater. Water consumption and chrome discharge are dramatically lower using the new system instead of the traditional system. A comparison of results shows that by using the new system water consumption decreases by 78 percent, chrome oxide content by 86 percent and chlorides present in the effluents by 94 percent. En ligne : https://drive.google.com/file/d/1xXjaqE-Av6mh2QsIhitmdVKeo_WTv8Tg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3994
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Code-barres Cote Support Localisation Section Disponibilité 005100 - Périodique Bibliothèque principale Documentaires Disponible Study of cross-linking reactions on butadiene binders in aqueous finishing / Anna Bacardit in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 6 (11-12/2010)
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Titre : Study of cross-linking reactions on butadiene binders in aqueous finishing Type de document : texte imprimé Auteurs : Anna Bacardit, Auteur ; A. Shendrik, Auteur ; Felipe Combalia, Auteur ; J. Jorge, Auteur ; Lluis Ollé, Auteur Année de publication : 2010 Article en page(s) : p. 248-252 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Copolymérisation
Cuirs et peaux -- Finition
Formulation (Génie chimique)
Liants
Polyacryliques
Polyaziridine
Polybutadiène
Polycarbodiimide
Polyisocyanates
Polymères réticulés
Polyuréthanes
Réticulation (polymérisation)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Study of cross-linking reactions on butadiene binders in aqueous finishing --- BUtadienes, like acrylic binders and polyurethanes, can be cross-linked to improve their wet fastness properties. Nowadays, four type of cross-linkers for leather finishing are available : polyaziridines, polyizocyanates, polycarbodiimides and epoxy compounds. The aim of this study is to compare the mechanism of reaction of these four types of cross-linkers and the possibility of using a polysilane as a cross-linking agent for butadienes. A comparison of results shows that all cross-linkers studied improve wet rub fastness. However, polyaziridine and polysilane emerge as the most effective cross-linkers for butadiene binders. En ligne : https://drive.google.com/file/d/1zp4Ifj1BohhvD7TBzTkB7LXvW1jCiEeU/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10810
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 94, N° 6 (11-12/2010) . - p. 248-252[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012670 - Périodique Bibliothèque principale Documentaires Disponible Study of the biodegradability of leather tanned with sodium aluminosilicate / Salvador Esquerra-Resa in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 6 (06/2022)
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Titre : Study of the biodegradability of leather tanned with sodium aluminosilicate Type de document : texte imprimé Auteurs : Salvador Esquerra-Resa, Auteur ; Salvador Esquerra-Dot, Auteur ; Alejandro Garcia, Auteur ; Angels Moreno, Auteur ; Teresa Mir, Auteur ; Anna Bacardit, Auteur Année de publication : 2022 Article en page(s) : p. 251-261 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alumino-silicate de sodium
Cuirs et peaux -- Biodégradation
Cuirs et peaux de bovins
Cuirs et peaux de moutons
Essais (technologie)
Formulation (Génie chimique)
Maroquinerie
Retannage
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminium
Tannage végétal
Tige de la chaussure
ZéolitesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The leather industry transforms raw hides into leather by mechanical and chemical processes. The main chemical process is the tanning in which the fibers are stabilized and cannot putrefy. To this end, different chemicals can be used that are capable of forming crosslinkages between collagen molecules. In this sense, the most used products are: chromium salts, aluminum, vegetable tannins, synthetics, aldehydes, resins and silicates. In this work, a new biodegradable tanning process based on zeolites was studied in two steps. In the first one, a tanning process for sheepskins and cow hides was developed. In the second one, three types of retanning process to obtain shoe upper, vegetable and leather goods were studied. This new system allows to obtain leather that can decompose naturally in a relative short period of time. Leather tanned with this system shows similar values to the biodegradability of pure collagen.
Specifically, with the retanning system used for shoe upper allows to obtain a 74.4% relative biodegradability compared to pure collagen.Note de contenu : - MATERIALS AND METHODS : Zeolites tanning process - Study of three types of retanning for the new tanning system
- RESULTS : Zeolites tanning process - Study of three types of retanning for the new tanning system
- Table 1 : Sheep skin tanning formulation
- Table 2 : Cow hide tanning formulation
- Table 3 : vegetable retanning formulation
- Table 4 : Leather goods retanning formulation
- Table 5 : Shoe upper retanning formulation
- Table 6 : Physical and chemical tests results for vegetable
- Table 7 : Physical and chemical tests results for shoe upper
- Table 8 : Physical and chemical tests results for leather goods
- Table 9 : Carbon content
- Table 10 : Percentage of theoretical aerobic biodegradability
- Table 11 : Percentage relative biodegradabilityDOI : https://doi.org/10.34314/jalca.v117i6.4966 En ligne : https://drive.google.com/file/d/1p5bnqsaxUqqhwhynwdWcfrEwRqUl1ZDs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37800
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Code-barres Cote Support Localisation Section Disponibilité 23490 - Périodique Bibliothèque principale Documentaires Disponible Study of the chrome hexavalent content in commercial chromium salts / Anna Bacardit in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 104, N° 1 (01-02/2020)
PermalinkStudy of the effect of temperature, relative humidity and UV radiation on chrome-tanned leather ageing / Anna Bacardit in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 6 (06/2012)
PermalinkStudy of the effect of temperature, relative humidity and UV radiation on wet-white leather ageing / Anna Bacardit in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 10 (10/2010)
PermalinkStudy of the qualitative and semi-quantitative analysis of grape seed extract by HPLC / Silvia Sorolla in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 3 (03/2018)
PermalinkSynthesis of highly carboxylate acrylic resins for leather impregnation / Lluis Ollé in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 1 (01/2012)
PermalinkTara (Caesalpinia spinosa) : The sustainable source of tannins for innovative tanning processes / Juan-Carlos Castell in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 6 (06/2013)
PermalinkUse of long-chain synthetic phenolic antioxidants to produce chromium-tanned leather without risk of hexavalent chromium formation / Irene Compte in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 10 (10/2023)
PermalinkWaste water reutilization in the leather industry using membrane technology / J. Roig in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 4 (04/2009)
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