Carbon footprint and toxicity indicators of alternative chromium-free tanning in China / Xiaoying Xu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 5 (05/2015)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CX, N° 5 (05/2015) . - p. 130-137 Titre : Carbon footprint and toxicity indicators of alternative chromium-free tanning in China Type de document : texte imprimé Auteurs : Xiaoying Xu, Auteur ; Grau Baquero, Auteur ; Rita Puig, Auteur ; Jiabo Shi, Auteur ; Sang Jun, Auteur ; Wei Lin, Auteur Année de publication : 2015 Article en page(s) : p. 130-137 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bilan des émissions de gaz à effets de serre Durée de vie (Ingénierie) Énergie -- Consommation Environnement -- Etudes d'impact Tannage -- Aspect de l'environnement Toxicologie Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : This paper analyzes, from a life cycle perspective, the environmental performance of a newly developed chromium-free tanning process compared to the conventional one, in China. Both processes were evaluated by using carbon footprint, energy consumption and toxicity indicators. Chromium-free tanning process has been found to significantly reduce the considered impact categories compared to conventional tanning. The impact contribution of each process step was calculated, with the tanning step being the major contributor. Results show that the production of chemicals used in the tanning process, have a significant effect on the impacts evaluated. Some of these chemicals have been substituted with similar ones (used as proxies) when no manufacturing-data was available in the databases. Thus, it is important for future and more precise LCA studies to develop databases on the specific chemicals used. This study is a first estimation of the impacts and will help on the decision of expending time and efforts on developing and optimizing the new technology. The results show that it is interesting to use this LCA methodology to environmentally evaluate new research processes and products, before industrial scaling and implementing them, to optimize research time and efforts towards the most environmentally promising products and processes. Note de contenu : - AIM OF THE STUDY - METHODOLOGY - INVENTORY DATA AND MODELING : Functional unit and system boundaries - Conventional tanning process model and inventory data - Chromium free tanning process model and inventory data - Chinese electrical power grid mix and thermal energy mix - Wastewater treatment - RESULTS AND DISCUSSION : Evaluation of the GWP index - Evaluation of the energy consumption - Evaluation of the toxicological impacts to humans and freshwater - Comparative evaluation of tanning steps En ligne : https://drive.google.com/file/d/10vyeauNiwsjpJ9kr5HmOz6pgSDeKiJ7c/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24053 [article]

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Challenging toxic tin catalysts in polyurethane coatings through serendipity / Marcel Butschle in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 5 (09/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 5 (09/2024) . - p. 1857-1865 Titre : Challenging toxic tin catalysts in polyurethane coatings through serendipity Type de document : texte imprimé Auteurs : Marcel Butschle, Auteur ; Markus Schackmann, Auteur ; Kim Dam-Johansen, Auteur Année de publication : 2024 Article en page(s) : p. 1857-1865 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Catalyse Dilaurate de dibutylétain Polyuréthanes Toxicologie Index. décimale : 667.9 Revêtements et enduits Résumé : Traditional polyurethane (PU) catalysts, especially dibutyl tin dilaurate, face scrutiny over toxicity concerns, leading to interest in safer alternatives. In an unexpected turn of events, research into a commercially available antibacterial agent revealed that it drastically reduced the pot life of PU coatings. Experiments show that when PU coatings were formulated with the antibacterial agent as catalyst, drying time and solvent resistance were improved as compared to traditional tin and zirconium catalysts. Further analysis showed that this was the result of copper compounds and it could be shown that a similar catalytic effect was achieved through Cu(II)-sulfate and Cu(II)-acetate. Such copper salts are not yet commonly known as replacements for tin catalysts. Possible mechanisms such as heterogenous catalysis or in-situ formation of the active compound were discussed. Note de contenu : - MATERIALS AND METHODS : - Raw materials - Coating properties in comparison to established catalysts - Characterization of antibacterial agent - Reaction kinetics with rheometer - RESULTS : - Coating properties in comparison to established catalysts - Investigation of catalytic effect of antibacterial agent DOI : https://doi.org/10.1007/s11998-024-00945-0 En ligne : https://drive.google.com/file/d/1ekWtcrOCh7cRCV3NuUvC6KzdoazYDw9w/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41534 [article]

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Chromium and leather : a review on the chemistry of relevance for allergic contact dermatitis to chromium in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) Titre : Chromium and leather : a review on the chemistry of relevance for allergic contact dermatitis to chromium Type de document : texte imprimé Année de publication : 2020 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Air -- Humidité Allergies Antioxydants Chrome hexavalent Chrome trivalent Dermatite de contact Eczéma professionnel Normalisation Spéciation (chimie) Toxicologie Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : As other causes decline in importance, chromium-tanned leather has become a more important source for chromium allergy, which affects around 1% of the general population. The aim of this review is to give suggestions on how to minimize the risk of leather-related allergic contact dermatitis, which can be elicited in chromium-allergic persons by hexavalent and trivalent chromium released from leather. Hexavalent chromium is the more potent chromium form and requires a lower skin dose to elicit allergic reactions. It is formed on the surface of some, antioxidant-free, leathers at dry conditions (< 35% relative humidity) and is influenced by the tanning process and other conditions, such as UV irradiation, contact with alkaline solutions, and leather age. Trivalent chromium is the dominant form released from chromium-tanned leather and its released amount is sufficient to elicit allergic reactions in some chromium-allergic individuals when they are exposed repetitively and over longer time (days – months). A low initial test result (< 3 mg/kg) for hexavalent chromium with the current standard test (ISO 17075) does not guarantee a low release of chromium from the leather or a low release of hexavalent chromium under typical exposure conditions during the service life of the leather. Information, labels, and certificates regarding leather products are often insufficient to protect chromium-allergic individuals. Correct labelling and information on the possible content of different allergens, as well as different tanning alternatives for certain leather products, are crucial. Note de contenu : - INTRODUCTION : Chromium speciation – toxicological considerations - Chromium tanning - Chromium allergy and allergic contact dermatitis (ACD) - Relevant chemical speciation of chromium for ACD - Prevalence of chromium allergy - Severity and persistence of chromium allergy and ACD - TRIVALENT VERSUS HEXAVALENT CHROMIUM FROM AN ALLERGIC PERSPECTIVE : Release of trivalent and hexavalent chromium from leather - Allergic reactions to trivalent and hexavalent chromium, and chromium-tanned leather - THE FORMATION OF HEXAVALENT CHROMIUM DURING USE OF CHROMIUM-TANNED LEATHER : Age of chromium-tanned leather article in use - Environmental factors during use of leather articles - OBSTACLES RELATED TO THE STANDARD TEST FOR HEXAVALENT CHROMIUM IN LEATHER (ISO 17075) - PRACTICAL IMPLICATIONS FOR CHROMIUM-ALLERGIC INDIVIDUALS AS CONSUMERS OF LEATHER PRODUCTS - ALTERNATIVES TO CHROMIUM-TANNING FROM AN ALLERGY PERSPECTIVE - Table 1 : Summary of selected data on the prevalence of chromium allergy in the general population and different clinical/occupational groups in different continents and countries. The data are merged for Europe, Asia, and North America. A detailed overview is given in the supplementary file, Table S - Table 2 : Most important tanning, leather, and exposure factors/conditions for the release of trivalent and hexavalent chromium from chromium-tanned leather DOI : https://doi.org/10.1186/s42825-020-00027-y En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-00027-y.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37453 [article]

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Cleaning agents : the divide – human friendly vs environmentally friendly / T. C. Yeomans in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 2/2010 (03-04/2010)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 2/2010 (03-04/2010) . - p. 81-85 Titre : Cleaning agents : the divide – human friendly vs environmentally friendly Type de document : texte imprimé Auteurs : T. C. Yeomans, Auteur ; E. B. Mitchell, Auteur ; J. McKeon, Auteur ; N. McKeon, Auteur Année de publication : 2010 Article en page(s) : p. 81-85 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Asthme Chimie écologique Dermatite de contact Produits nettoyants Surfactants Toxicologie Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The choice of purchasing an environmentally friendly or "green" cleaning product appears to be one that consumers are increasingly happy to make, however the reality is that environmentally friendly cleaners may contain ingredients that can adversely affect those people suffering from asthma and allergies. Confirming that a product will not adversely affect a user is not straightforward, there is little point to a cleaning product that is harmless to the consumer but is ineffective in its cleaning performance. However, adhering to strict guidelines regarding allowable concentrations of chemicals and other constituents may allow consumers to purchase a product that is both human (and environment) friendly as well as being effective. We discuss the basis by which cleaners may be assessed for suitability for those with asthma and allergies. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8869 [article]

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Commonly used UV filter toxicity on biological functions : review of last decade studies / Elodie Gilbert in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 35, N° 3 (06/2013)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 35, N° 3 (06/2013) . - p. 208-219 Titre : Commonly used UV filter toxicity on biological functions : review of last decade studies Type de document : texte imprimé Auteurs : Elodie Gilbert, Auteur ; F. Pirot, Auteur ; L. Roussel, Auteur ; F. Falson, Auteur ; K. Padois, Auteur Année de publication : 2013 Article en page(s) : p. 208-219 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dioxyde de titane Nanoparticules -- Toxicologie Oxyde de zinc Perméation Produits antisolaires Toxicologie Index. décimale : 668.5 Parfums et cosmétiques Résumé : Les produits solaires destinés à protéger la peau contre les irradiations UV contiennent le plus souvent des combinaisons de filtres UV. Ces filtres permettent de réduire le vieillissement prématuré de la peau ainsi que la survenue de cancer cutané. Cependant, la nocivité des filtres UV est toujours un sujet de controverse. Ainsi, des réactions allergiques liées à l'utilisation de produits solaires contenant des filtres UV organiques ont été rapportées dans la littérature. Récemment, l'utilisation de filtres UV minéraux à l'échelle nanométrique, dispersés dans les produits destinés à la protection solaire a fait l'objet de travaux scientifiques visant à établir le niveau de pénétration cutanée. Ces dernières années, de nombreuses études ont été publiées tendant à montrer que les filtres UV organiques et inorganiques peuvent entrainer divers effets indésirables. Mais, ces diverses études restent très controversées notamment à cause des différences dans les conditions expérimentales et les modèles utilisés. Cette revue révèle que des études complémentaires utilisant des méthodes standardisées sont nécessaires pour confirmer ou infirmer que les filtres UV présentent un risque sanitaire. Note de contenu : - UV filters in susncreens - Organic UV filters toxicity - Inorganic UV filter toxicity - Inorganic UV filter association with organic UV filters DOI : 10.1111/ics.12030 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/ics.12030 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18809 [article]

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Conventional abrasives carry health risks / Jack Innis in PROTECTIVE COATINGS EUROPE (PCE), Vol. 4, N° 3 (07-08-09/2012)

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Cosmetic properties of Sandalwood seed oil / DS Hettiarachchi in PERSONAL CARE EUROPE, Vol. 11, N° 5 (11/2017)  

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Development of computational models for the risk assessment of cosmetic ingredients / Soheila Anzali in IFSCC MAGAZINE, Vol. 15, N° 4 (10-11-12/2012)

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Development of non toxic antifouling coating solutions : A review / Bhatu Suryawanshi in PAINTINDIA, Vol. LXXI, N° 5 (05/2021)  

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Eco-labelling of architectural coatings / David Sykes in EUROPEAN COATINGS JOURNAL (ECJ), N° 5/95 (05/1995)

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Élaboration d’un guide de choix de solvants durables / Didier Mariotte in L'ACTUALITE CHIMIQUE, N° 427-428 (03-04/2018)  

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Être et paraître : la grande folie du tatouage / Rose Agnès Jacquesy in L'ACTUALITE CHIMIQUE, N° 424 (12/2017)  

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L'évaluation des risques toxicologiques vue sous son angle réglementaire / Jean-Charles Boutonnet in L'ACTUALITE CHIMIQUE, N° 367-368 (10-11/2012)  

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Evaluation de la toxicité des nouvelles molécules médicamenteuses / François Ballet in L'ACTUALITE CHIMIQUE, N° 367-368 (10-11/2012)  

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Expositions professionnelles aux hydrocarbures aromatiques : attention aux interactions métaboliques / Benoît Cossec in HYGIENE & SECURITE DU TRAVAIL, N° 255 (04-05-06/2019)  

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Fabrication additive : état des lieux de la prévention et perspectives / François-Xavier Keller in HYGIENE & SECURITE DU TRAVAIL, N° 270 (01-02-03/2023)  

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Les faibles doses / France Wallet in L'ACTUALITE CHIMIQUE, N° 367-368 (10-11/2012)  

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Fire, smoke, and toxicity requirements for composites in trains and trams / Eric Moussiaux in TECHNICAL TEXTILES, Vol. 66, N° 2 (2023)  

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Free radical and cationic photoinitiators in ultraviolet light curable coatings / Latoska N. Price in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 849 (10/1995)

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Hazards in the chemical laboratory / L. Bretherick / Londres [Royaume-Uni] : The Royal Society of Chemistry (1981)

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