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[article]
Titre : Two-way protection : Organic/inorganic hybrid anticorrosive pigment outperforms zinc phosphate Type de document : texte imprimé Auteurs : Jose Javier Gracenea, Auteur ; Richard March, Auteur ; Esther Oro, Auteur Année de publication : 2013 Article en page(s) : p. 30-35 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs
Anticorrosion
Calcium
Essais de brouillard salin
Evaluation
Pigments
Silicate de phosphore
Statistique
StrontiumIndex. décimale : 667.9 Revêtements et enduits Résumé : Environmental requirements call for the development of more efficient anticorrosive pigments, free of toxic heavy metals. A zinc-free anticorrosion pigment based on organically treated calcium strontium phosphosilicate with a very fine particle size has been developed on this purpose. This pigment was found to show much better anticorrosive properties than standard zinc phosphate in salt spray tests. Note de contenu : - The value of experimental design
- Physical and chemical contributions to protection
- Test procedures summarised
- Salt spray test procedure
- Statistical evaluation of resultsEn ligne : https://drive.google.com/file/d/1U-GUhxtDqLcsdONk4TKY0b33nuvAwR8L/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19254
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9 (09/2013) . - p. 30-35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15468 - Périodique Bibliothèque principale Documentaires Disponible Ultrasound-assisted reduction of bis azo dye into aromatic amines on natural textile fibres : A greener approach / Rajkumar Dewani in COLORATION TECHNOLOGY, Vol. 138, N° 3 (06/2022)
[article]
Titre : Ultrasound-assisted reduction of bis azo dye into aromatic amines on natural textile fibres : A greener approach Type de document : texte imprimé Auteurs : Rajkumar Dewani, Auteur ; Munawwer Rasheed, Auteur ; Farman Ahmed, Auteur ; Muhammad Zubair Asim, Auteur ; Mansoor Shaikh, Auteur ; Muhammad Kashif Pervez, Auteur Année de publication : 2022 Article en page(s) : p. 315-326 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Amines aromatiques Les amines aromatiques sont des amines liées à un ou plusieurs cycles aromatiques, plus ou moins toxiques selon leurs caractéristiques chimiques.
Des amines aromatiques sont utilisées ou produites dans de nombreux processus industriels (dans l'industrie chimique principalement).
- Classification : Elles sont regroupées dans une même famille chimique mais leur toxicité est variable d'une substance à l'autre.
- Toxicologie : Dispersées dans l'environnement, l'eau ou les aliments, ces amines sont des polluants ou contaminants indésirables. La population générale peut y être exposée de diverses manières principalement via le tabagisme et lors d'apports alimentaires.
Les voies de contamination peuvent être cutanée, respiratoire (inhalation) et digestive). (Wikipedia)
Colorants azoïques
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Evaluation
Fibres naturelles
Laine
Lin et constituantsLe lin cultivé (Linum usitatissimum) est une plante annuelle de la famille des Linaceae cultivée principalement pour ses fibres, mais aussi pour ses graines oléagineuses. Les fibres du lin permettent de faire des cordes, du tissu (lin textile pour ses qualités anallergiques, isolantes et thermorégulateurs), ou plus récemment des charges isolantes pour des matériaux de construction. Les graines sont utilisées pour produire de l'huile de lin pour l'industrie de l'encre et de la peinture, pour la consommation humaine et animale, à cause de sa richesse en oméga 3.
Le lin est une des rares fibres textiles végétales européennes. Elle a comme caractéristiques la légereté, la rigidité et la résistance et comme particularité d'être une fibre longue (plusieurs dizaines de centimètres), par rapport aux fibres courtes (coton, chanvre) ou moyennes (laine).
Réduction (chimie)
Rouge (couleur)
Teinture -- Fibres textiles
UltrasonsIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The current study elaborates on the capabilities of ultrasonic waves in improving the conventional method for analysis of banned aromatic amines in dyed textile samples. Wool, linen and cotton were dyed according to their relative affinity with a selected benzidine-based dye, CI Direct Red 28. The standard procedure, BS EN 14362-1:2012, was used for testing dyed textile samples, with final estimation through gas chromatography-mass spectrometry. The dyed samples, after reduction, released a significant quantity of benzidine (listed banned amine), hence were chosen for experiments with ultrasound-assisted reduction (UAR). To explore the influence of ultrasound energy on the reduction of bis azo dye, the standard procedure for analysis of banned aromatic amines in textiles was modified incorporating minor changes. The reduction step in the altered methods was performed with ultrasonic aid in less time, while the rest of the method remained unmodified. The altered procedure was designated as “method 2”. Samples were quantified with gas chromatography-mass spectrometry. The extent of the reduction was correlated with wetting characteristics of textile materials. The results from the standard test procedure were used for comparison with those obtained from UAR trials. The UAR method in the case of wool, assessed in terms of greenness, provided noticeable time and energy savings. A comparative account of the chosen matrices with respect to dye reduction is also presented. Note de contenu : - MATERIALS AND METHODS : Textile dyeing - Instrumentation - Standard method for the analysis of textile - Standard addition experiments - Method 2
- RESULTS AND DISCUSSION : Dyed samples of DR 28 - Quality assesment by spike recovery trials - UAR of dyed cotton (method 2) - UAR of dyed linen (method 2) - UAR of dyed wool (method 2) - Comparison of matrices - Green profiles
- Table 1 : Profiles of selected amines in dyed samples, subjected to ultrasound-assisted reduction (UAR) and the standard procedure, analysed by gas chromatography-mass spectrometry
- Table 2 : Benzidine mass fractions as a function of fibre contact angles (with respect to water)DOI : https://doi.org/10.1111/cote.12592 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12592 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37860
in COLORATION TECHNOLOGY > Vol. 138, N° 3 (06/2022) . - p. 315-326[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23519 - Périodique Bibliothèque principale Documentaires Disponible Understanding BPA-non-intent resin technology in food contact metal packaging coatings / Linqian Feng in COATINGS TECH, Vol. 16, N° 6 (06/2019)
[article]
Titre : Understanding BPA-non-intent resin technology in food contact metal packaging coatings Type de document : texte imprimé Auteurs : Linqian Feng, Auteur ; Andrew Detwiler, Auteur ; Jeffrey Clauson, Auteur ; Abraham Boateng, Auteur ; Hongkun He, Auteur ; Goliath Beniah, Auteur ; Thilanga Liyana Arachchi, Auteur ; H. Williams Chip, Auteur Année de publication : 2019 Article en page(s) : p. 28-37 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aliments -- Emballages
Anticorrosion
Bisphénol A -- Suppression ou remplacement
Couches minces
Emballages métalliques
Essais (technologie)
Essais de résilience
Evaluation
Formulation (Génie chimique)
Résistance chimique
Spectroscopie d'impédance électrochimiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Consumer and regulatory pressure to replace bisphenol-A (BPA)-based materials in food contact metal packaging coatings has increased in recent years. Regardless of the controversy around BPA, consumers expect canned foods to be free of substances perceived to have negative health impacts while maintaining current shelf life and flavor characteristics. To address the market needs, formulators must innovate to deliver BPA-non-intent (BPA-NI) solutions that can meet or exceed the performance of BPA-based materials. This presents a challenge with regard to improving the resistance to food sterilization and stability during pack testing, and simultaneously balancing mechanical performance that allows the BPA-NI coating to withstand the aggressive canning process.
One response to these technical challenges has been the development of BPA-NI polyester resin technology through innovation on a monomer basis. This monomer innovation provides protective performance attributes such as resistance to corrosion and chemical attack, while enabling flexibility and adhesion through innovative resin and formulation design. Fundamental techniques such as electrochemical impedance spectroscopy (EIS) and cathodic disbonding were employed in combination with industrial fitness-for-use evaluations to demonstrate the improved protective barrier properties of novel non-BPA resins in formulated coatings. In addition, hydrophobicity and interfacial properties were studied to understand the impact of resin structure on coating performance from both experimental and computational perspectives. Applying this suite of methods and analysis builds strong structure-property correlations as part of a resin development strategy for novel non-BPA resins in metal packaging coating applications.Note de contenu : - EXPERIMENTAL PROCEDURES : Materials and sample preparation - Testing and evaluations (Electrochemical impedance spectroscopy (EIS) - Cathodic disbonding test - Food simulants and retord) - Computational modeling
- RESULTS AND DISCUSSION : EIS and corrosion mechanisms - Stage zero : Dry film - Stage 1 : Foodsimulant absorption - Stage 2 : Corrosion initiation - Stage 3~4 : Pore/breakthrough formation and delamination - Time-based corrosion resistance - Interface and adhesion
- Fig. 1 : Hydrolysis of model dihexanoate ester (hexanoate-glycol-hexanoate) compounds at 130°C
- Fig. 2 : 2—(a) Cathodic disbonding schematic and (b) lab setup of cathodic disbonding experimental setup
- Fig. 3 : Equivalent circuit model corresponding to a Bode plot with no time-constant (Stage zero corrosion)
- Fig. 4 : Equivalent circuit model corresponding to one time-constant in a Bode plot (Stage I corrosion)
- Fig. 5 : Equivalent circuit model corresponding to two time-constant (Stage II corrosion)
- Fig. 6 : Equivalent circuit model corresponding to a coated metal with Warburg character (Stage III ∼ IV corrosion). Schematics (a) and (b) correspond to equations (5) and (6), respectively
- Fig. 7 : Effect of exposure time on the EIS Bode plot for low-Tg low Mn Control B based clear PU
- Fig. 8 : EIS Bode plot to compare Resin A vs Control A in clear PU formulation, as well as Resin A in gold benzoguanamine phenolic after 5 h of exposure in LAS food simulant
- Fig. 9 : ime-based corrosion resistance of white PU coatings formulated with Control A, Control B, Resin A, and Resin B resins in 2% lactic acid food simulant for (a) 1st 48-h interval and (b) 2nd 48-h interval. Ten hours of relaxation time was given before the 1st and 2nd test intervals. Corrosion resistance is identified by the impedance value at 0.1 Hz
- Fig. 10 : A comparison of corrosion resistance of white PU coatings formulated with Control A, Control B, Resin A, and Resin B resins after 106 h, in 2% lactic acid food simulant
-Fig. 11 : (a) LogP values calculated for glycol (G1)-terephthalic acid (T)-glycol (G2) trimer model compounds, where EG=ethylene glycol, BG=butylene glycol, PG=propylene glycol, NPG=neopentyl glycol, DG=diethylene glycol. (b) Hildebrand solubility parameters calculated from molecular dynamics simulations. The color codes are used to rate the values, where Green=smallest value and Red=greatest value
- Fig. 12 : EIS bode plot to compare Resin A vs Control A in clear PU formulation after 12 days of exposure in LAS food simulant
- Fig. 13 : Images of clear PU coatings formulated with Resin A and Control A (a) after 3% acetic acid retort and (b) after cathodic disbonding test whereby 5V was applied for 60 sec
- Fig. 14 : Quantifying cathodic disbonding failures of Control A-based clear PU coatings through pixels counting
- Table 1 : Details of BPA-NI polyestser resins utilized in this study
- Table 2 : Details of formulation components utilized in this study
- Table 3 : Formulation details of gold benzoguanamine phenolic formulation
- Table 4 : Formulation details of white and clear PU formulationsEn ligne : https://drive.google.com/file/d/1GM1X2P5qhHB9ENgQzeyxlyuJg2J5yzEO/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32719
in COATINGS TECH > Vol. 16, N° 6 (06/2019) . - p. 28-37[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21023 - Périodique Bibliothèque principale Documentaires Disponible Understanding the cosmetic safety report / Martin Perry in PERSONAL CARE EUROPE, Vol. 7, N° 2 (03/2014)
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Titre : Understanding the cosmetic safety report Type de document : texte imprimé Auteurs : Martin Perry, Auteur ; Roger Pengilly, Auteur Année de publication : 2014 Article en page(s) : p. 10-12 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Consommateurs -- Protection
Cosmétiques
Cosmétiques -- Aspect sanitaire
Cosmétiques -- Toxicologie
Evaluation
Industrie cosmétique -- Législation -- Pays de l'Union Européenne
Produits chimiques -- Sécurité
Rapports techniquesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Cosmetics are regulated in the European Union by Regulation (EC) No 1223/2009. The main objectives of this regulation are to create a set of rules that ail cosmetics comply with and to ensure a high level of protection for human health. One of the requirements of the regulation is that prior to placing the product on the market a safety assessment is carried out. The regulation specifies that this safety assessment should be in the form of a cosmetic product safety report. This article is intended to give an insight into what needs to be considered when carrying out a safety assessment and preparing a cosmetic product safety report. Note de contenu : - RESPONSIBLE PERSON
- WHAT IS A COSMETIC PRODUCT SAFETY REPORT ?
- INGREDIENTS
- COSMETIC PRODUCT SAFETY REPORT
- PART A : COSMETIC PRODUCT SAFETY INFORMATION : Microbiological quality - Impurities, traces, information about packaging material - Normal and reasonably foreseeable use - Exposure to cosmetic product - Toxicological profile of the substances - Undesirable effects and serious undesirable effects - Information on the cosmetic product
- PART B : COSMETIC SAFETY ASSESSMENT : Assessment conclusion - Labelling warnings and instructions of use - Reasoning - Assessor's credentials and approval of Part B
- SCCS OPINIONS AND SAFETY ASSESSMENTSEn ligne : https://drive.google.com/file/d/13QMXnSmK8ZW2uqEW8n5S79fuP6ic_4Ue/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20772
in PERSONAL CARE EUROPE > Vol. 7, N° 2 (03/2014) . - p. 10-12[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16107 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Upcycled fragrance waste for cosmetic actives Type de document : texte imprimé Année de publication : 2022 Article en page(s) : p. 81-84 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Actifs anti-pollution
Déchets végétaux -- Recyclage
Économie circulaireL'économie circulaire est une expression générique désignant un concept économique qui s'inscrit dans le cadre du développement durable et s'inspirant notamment des notions d'économie verte, d’économie de l'usage ou de l'économie de la fonctionnalité, de l'économie de la performance et de l'écologie industrielle (laquelle veut que le déchet d'une industrie soit recyclé en matière première d'une autre industrie ou de la même).
Son objectif est de produire des biens et services tout en limitant fortement la consommation et le gaspillage des matières premières, et des sources d'énergies non renouvelables ;
Selon la fondation Ellen Mac Arthur (créée pour promouvoir l'économie circulaire1), il s'agit d'une économie industrielle qui est, à dessein ou par intention, réparatrice et dans laquelle les flux de matières sont de deux types bien séparés ; les nutriments biologiques, destinés à ré-entrer dans la biosphère en toute sécurité, et des intrants techniques ("technical nutrients"), conçus pour être recyclés en restant à haut niveau de qualité, sans entrer dans la biosphère
Etudes cliniques
Evaluation
Parfums -- Déchets
Produits et matériaux recyclés
Schinus terebinthifoliusIndex. décimale : 668.5 Parfums et cosmétiques Résumé : IFF/Lucas Meyer Cosmetics explain why upcycled Schinus terebinthifolia and Lavandula angustifolia extracts are good examples of how the recently created synergy between the fragrance and cosmetic industries can produce original, upcycled and sustainable cosmetic ingredients with interesting effects.
Environmental issues like climate change, increasing pollution and endangered biodiversity have gradually become part of the collective consciousness of society. Consumers are more educated than ever before and their habits and practices are changing. They are thus expecting more from the cosmetic brands they purchase, throughout the whole manufacturing process and supply chain of products.
Recycling, which transforms waste into materials of similar value, is no more considered as the most effective way to dispose of things initially intended to be destroyed. Beyond recycling, a new trend is emerging toward upcycling, a process that rather converts a material into something of greater value than it originally was.
Circular beauty refers to the use of upcycled ingredients obtained by transforming leftovers, by-products, waste or discarded materials from other industries into high-value innovations combined with environmental benefits.
The fragrance industry commonly requires a huge amount of raw materials and generates several tons of waste (spent plant) in the process of extracting essential oils for the making of perfumes. Upcycling of fragrance waste is a step forward on sustainability and opens new opportunities for the cosmetic industry.Note de contenu : - MATERIALS AND METHODS : Extracts - Clinical evaluation of the upcycled - Clinical evaluation of the upcycled Lavandula angustifolia extract
- CLINICAL RESULTS OBTAINED WITH THE UPCYCLED SCHINUS TEREBINTHIFOLIA EXTRACT ON SCALP : Protection from moisture- and friction-induced scalp erythema and pruritus - Protection from moisture- and friction-induced scalp scaling
- CLINICAL RESULTS OBTAINED WITH THE UPCYCLED LAVANDULA ANGUSTIFOLIA EXTRACT ON POLLUTANT-CHALLENGED SKIN : Protection of the skin barrier function - Protection of skin luminosity following indoor pollutant stress
- Fig. 1 : Upcycling fragrance industry waste
- Fig. 2 : Schinus terebinthifolia and Lavandula angustifolia : examples of upcycling waste
- Fig. 3 : In vitro results for Schinus terebinthifolia and Lavandula angustifolia extractsEn ligne : https://drive.google.com/file/d/1DL_dOxgltvF7MXL1da2MBh1T5HWzmhw4/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38713
in GLOBAL PERSONAL CARE > Vol. 23, N° 10 (11/2022) . - p. 81-84[article]Réservation
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