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Titre : Clay-based rheology for enhanced UV protection Type de document : texte imprimé Année de publication : 2023 Article en page(s) : P. 6-7 Langues : Anglais (eng) Catégories : Argile
Cosmétiques
Produits antisolaires
RhéologieIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Consumer demand for sun care products is on the rise, driven by the growing recognition of sun protection as an essential aspect of maintaining skin health.
In an era of increasingly informed consumers, their expectations extend beyond basic UV protection. They now seek products boosting high SPF, water resistance, lightweight feel, and natural ingredients
With consumers setting such high standards, formulators face the formidable task of creating sunscreens that meet these multifaceted needs. Elementis provides a range of solutions that can address challenges faced by formulators, including enhancing suspension and stability, improving film thickness, and boosting SPF and water resistance in sun care products.Note de contenu : - Enhanced suspension and stability
- Improved film thickness and integrity
- Boost SPF and water resistance
- Benefits of BENTONE GEL, BENTONE LUXE and BENTONE HYDROCLAYEn ligne : https://drive.google.com/file/d/1dKBHotAyi2WQBJLNq6329-bcLbNTale6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40507
in GLOBAL PERSONAL CARE > Vol. 24, N° 10 (11/2023) . - P. 6-7[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24285 - Périodique Bibliothèque principale Documentaires Disponible Clay-like ingredient for a better skin and well-being / Julia Comas in SOFW JOURNAL, Vol. 146, N° 3 (03/2020)
[article]
Titre : Clay-like ingredient for a better skin and well-being Type de document : texte imprimé Auteurs : Julia Comas, Auteur ; Olga Laporta, Auteur ; Elena Cañadas, Auteur ; Albert Soley, Auteur ; Raquel Delgado, Auteur Année de publication : 2020 Article en page(s) : p. 20-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-inflammatoires
Antioxydants
Argile
Dermo-cosmétologie
Extraits de plantes:Extraits (pharmacie)
Ingrédients cosmétiques
Peau -- Nettoyage
Peau -- Soins et hygiène
Régénération (biologie)Index. décimale : 668.5 Parfums et cosmétiques Résumé : Clay-based skin care treatments are one of the oldest skin care treatments still being used today by many consumers. They are known to present multiple cosmetic benefits, as well as well-being-enhancing properties, becoming an ideal ally for people living in busy and urban environments. However, these ancient treatments are also asked to be reinvented to bring fresh air to the market. Uniclayâ„¢ biotech ingredient is a fermentation-based extract derived from a clay microorganism that mimics the effects of clays on the skin, offering a cleaner, smoother and more beautiful skin for all ethnicities and improved sense of well-being. The ingredient can also be incorporated into all types of skin care formulations, bringing renovated applications to consumers. Note de contenu : - Let's talk beauty
- The magic of clays
- Addressing three current beauty trends : wellness-driven beauty, inclusivity and clean beauty
- P. acnes biofilm formation
- Reduced inflammatory resopnse to P. acnes
- Enhanced skin regeneration
- Cleansing effect
- Antioxidant response determined by ROS
- Cellular oxygen consumption
- Minimizing imperfections
- Well-being and self-perception enhanced
- Improved skin complexion in all ethnicities
- Fig. 1 : Mechanical wound in human keratinocytes. The purple arrows show the empty area, corresponding to the injured region
- Fig. 2 : Images of fibroblasts, with ROS staining shown in orange and cell nuclei in blue
- Fig. 3 : Images of the red spots of a volunteer before and after the treatment.
- Fig. 4 : UV photographs of a volunteer before and after 14 and 28 days of the active treatment. The presence of porphyrins can be seen as colored fluorescent spots
- Fig. 5 : Image of a volunteer before and after the treatment
- Fig. 6 : Changes in the vocal analysis (intensity and tone parameters) of the volunteers after different treatments (**p<0.01, ***p<0.001)En ligne : https://drive.google.com/file/d/1VLpTjMGghydCgsN5j4-lGOQOup-IlDS9/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33823
in SOFW JOURNAL > Vol. 146, N° 3 (03/2020) . - p. 20-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21589 - Périodique Bibliothèque principale Documentaires Disponible Clay nanoadsorbent as an environmentally friendly substitute for mordants in the natural dyeing of carpet piles / Mazeyar Parvinzadeh Gashti in COLORATION TECHNOLOGY, Vol. 130, N° 1 (02/2014)
[article]
Titre : Clay nanoadsorbent as an environmentally friendly substitute for mordants in the natural dyeing of carpet piles Type de document : texte imprimé Auteurs : Mazeyar Parvinzadeh Gashti, Auteur ; Bashir Katozian, Auteur ; Mohammad Shaver, Auteur ; Amir Kiumarsi, Auteur Année de publication : 2014 Article en page(s) : p. 54-61 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbants et adsorbants
Argile
BentoniteLa bentonite est une argile colloïdale dont le nom vient de Fort Benton dans le Wyoming aux États-Unis. Connue aussi sous le terme de terre à foulon, elle peut être considérée comme une smectite, étant essentiellement constituée de montmorillonite (Na,Ca)0.33(Al,Mg)2Si4O10(OH)2·(H2O)n.(80 %) et d'argile ce qui explique sa capacité de rétention d'eau. On trouve également d'autres minéraux comme le quartz, le mica, le feldspath, la pyrite ou la calcite. Les gisements de bentonites sont d'origines volcanique et hydrothermale.
Elle possède diverses propriétés. Notamment, elle absorbe les protéines, réduit l’activité des enzymes. Les boues bentonitiques (recelant une fraction de bentonite) sont utilisées dans les travaux de terrassement, de parois moulées, du fait de leur capacité à laisser la place rapidement et facilement aux bétons coulés à leur place. Elles peuvent être ajoutées au compost.
Le numéro CAS de la bentonite est 1302-78-9.
Il existe deux types de bentonites :
La bentonite à base de sodium, qui augmente de volume lorsqu'elle est humide et qui peut absorber plusieurs fois sa masse en eau. Cette propriété est mise en valeur dans les mastics pour l'enfouissement de matières polluantes dans le sol. Elle est utilisée dans les puits de forage de pétrole et la recherche géothermique.
La bentonite à base de calcium (pascalite), qui ne possède pas ces propriétés de gonflement, a des applications parapharmaceutiques dont les résultats restent à prouver, notamment dans le domaine du système digestif. Des tribus indigènes d'Amérique du Sud, d'Afrique et d'Australie ont longtemps employé l'argile de bentonite pour cet usage.
En raison de ses fonctionnalités rhéologiques, la bentonite a un comportement thixotrope. Des petites quantités de bentonite en solution aqueuse forment un mélange visqueux, dont la viscosité baisse lorsque l'effort mécanique qui lui est appliqué augmente.
Garance et constituants
Laine
Mordançage (teinture)
Nanoparticules
Teinture -- Fibres textiles
Textiles et tissus -- Propriétés mécaniques
Traction (mécanique)Index. décimale : 667.3 Teinture et impression des tissus Résumé : The aim of this work was to assess the possibility of using a bentonite-type clay as a promising substitute for mordants in the natural dyeing of wool with madder. Wool yarn was treated with nanoclay by using three conventional methods of pretreatment (before dyeing), simultaneous dyeing with madder in the presence of clay, and aftertreatment (after dyeing). Madder was used as a natural source of colorant. The scientific methods employed in this study included Fourier Transform-infrared spectroscopy, ultraviolet-visible spectrophotometry, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, moisture regain measurement, tensile strength tests, reflectance spectrophotometry, and fastness evaluation. The intensity of the major peaks in the Fourier Transform-infrared spectra of the nanoclay-treated wool yarn indicated chemical changes in the polypeptide functional groups in the wool structure. Madder exhibited higher dyeing properties on clay-pretreated samples compared with untreated wool. The results of colour measurements showed that the colour strength of the dyed samples improved with an increasing amount of clay in the pretreatment baths. Note de contenu : - MATERIALS AND METHODS : Materials - Procedures - Analysis of properties
- RESULTS AND DISCUSSION : Structural information - UV absorption of solutions - Determination of thermal properties - Microscopic characterisation - Moisture absorption and tensile strength tests - Colorimetric characterisation - Fastness assessmentDOI : 10.1111/cote.12065 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12065 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20360
in COLORATION TECHNOLOGY > Vol. 130, N° 1 (02/2014) . - p. 54-61[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15937 - Périodique Bibliothèque principale Documentaires Disponible Clays : a new multifunctional cosmetic natural and sustainable active ingredients / Maria Célia Hibari Reimberg in SOFW JOURNAL, Vol. 148, N° 4 (04/2022)
[article]
Titre : Clays : a new multifunctional cosmetic natural and sustainable active ingredients Type de document : texte imprimé Auteurs : Maria Célia Hibari Reimberg, Auteur ; Hanane Chajra, Auteur ; Mathilde Fréchet, Auteur Année de publication : 2022 Article en page(s) : p. 20-24 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argile
Biomolécules actives
Cosmétiques
Dermo-cosmétologie
Ingrédients cosmétiques
Matériaux -- Propriétés barrières
Perte insensible en eau
Produits hydratants
Produits naturelsIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Nowadays, customers are lookingforcosmetic products that bring benefits for skin health besides their capacity to ameliorate the skin beauty perception. Natural clays can provide this need through their capacity to interact with the skin, while treat them in a positive way.
The physical-chemical properties and the mineral composition supplied by clays (specially to kaolinite type), bring beneficial properties for skin, such as source of essential minerals, strength to the barrier function, detox and matte effect, and improvement of rheological parameters of formulations.
Thanks to their versatility, clays can be use in formulations for skin, providing cleaning effect, action against pollution and toxins, and also new formulas for solid cosmetics, which increases stability of formulations.
Interestingly, Brazilian clays present additional benefits in a performance-based multifunctionality, improving skin conditions through maintenance of hydration, and decrease of TEWL evaluated in short-time and long-time proof-of-concept studies, after clays foundation type formulation application in healthy skin participants.
Results obtained from that provide information regarding effectiveness on skin hydration, and skin barrier function through the decrease of the trans epidermal water loss ensuring the promotion of skin healthiness.Note de contenu : - MATERIALS AND METHODS
- RESULTS : Improvement of skin hydration after 4 hours of product use - Improvement of skin hydration after 28 days of product use - Study of skin barrier function - Improvement of skin barrier function after 28 days of product use
- DISCUSSION : Hydration - Tran sepidermal water lossEn ligne : https://drive.google.com/file/d/1fU1oEPeLJ4qwk40HeqnVT3i6yHgoCJAK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37491
in SOFW JOURNAL > Vol. 148, N° 4 (04/2022) . - p. 20-24[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23349 - Périodique Bibliothèque principale Documentaires Disponible Co-intercalation in PP clay nanocomposites : effect of short chain additives on rheological properties / B. Haworth in INTERNATIONAL POLYMER PROCESSING, Vol. XXVI, N° 1 (03/2011)
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Titre : Co-intercalation in PP clay nanocomposites : effect of short chain additives on rheological properties Type de document : texte imprimé Auteurs : B. Haworth, Auteur ; U. N. Ratnayake, Auteur Année de publication : 2011 Article en page(s) : p. 91-99 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argile
Dispersions et suspensions
Ecoulement cisaillé
Matériaux hybrides
Montmorillonite
Polymères -- Additifs
PolypropylèneIndex. décimale : 668.9 Polymères Résumé : Layered structures in inorganic minerals are not easily intercalated when combined with conventional non-polar polymers such as polypropylene (PP). A new co-intercalation method is reported whereby the combined influence of low molecular weight polar additives and polyolefin-based compatibilizers on PP-clay nanocomposites (PPCN) has been investigated. Our research has shown that the interlayer spacing of montmorillonite clay increases dramatically, and increased particle dispersion is achieved, when short chain, organic additives (typically amidetype, AM) are included. In this work, the migration of these additives into the clay galleries has been confirmed by surface energy data (from contact angle experiments) and by various capillary flow measurement techniques. Shear flow data have been used to interpret the mechanism of intercalation, following compound preparation using melt-state mixing processes. At relatively low concentrations, the erucamide molecules assist the intercalation process in nanocomposites; however if an excess of AM is apparent within the bulk polymer melt, unusual flow behavior is observed which can be attributed to wall slip. Modified melt elasticity is also obtained with the PPCN’s leading to reduced die swell characteristics in extrusion processes. Significant differences in melt flow behavior can therefore be attributed to the presence of AM; a mechanism for co-intercalation has been proposed in terms of hydrogen bonding between the additives and the silicate layers. DOI : 10.3139/217.2409 En ligne : https://drive.google.com/file/d/18BmekobMvn91EwgaGdQg2f9tWakUkZcW/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11068
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Code-barres Cote Support Localisation Section Disponibilité 012871 - Périodique Bibliothèque principale Documentaires Disponible PermalinkCollagen modification using nanotechnologies : a review / Deng-Ge Gao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 10 (10/2013)
PermalinkCost-effective corrosion barriers / Samuel Kenig in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2016)
PermalinkPermalinkCu2O-clay composites with sub-micrometer-sized Cu2O particles for marine antifouling paints / Pengchong Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 1 (01/2019)
PermalinkDevelopment in rheological additives in surface coatings / Deepak Patil in PAINTINDIA, Vol. LXIV, N° 2 (02/2014)
PermalinkDiagramme de phase de suspensions de colloïdes anisotropes : propriétés à l'équilibre, structure et dynamique / A. Mourchid in LES CAHIERS DE RHEOLOGIE, Vol. XIII, N° 1-2 (10/1994)
PermalinkLe dialogue intime entre colorants et argiles révélé par la fluorescence résolue dans le temps / Jean-Marc Janot in L'ACTUALITE CHIMIQUE, N° 444-445 (10-11/2019)
PermalinkDispersion is the key to performance / Véronic Landry in EUROPEAN COATINGS JOURNAL (ECJ), N° 07-08/2009 (07-08/2009)
PermalinkDual approach of bimodality and nano-reinforcement towards toughened PDMS based foul release coatings / Sangram K. Rath in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
PermalinkPermalinkPermalinkÉcoulements de suspensions thixotropes d'argile / Frédéric Pignon in LES CAHIERS DE RHEOLOGIE, Vol. XIII, N° 1-2 (10/1994)
PermalinkEffect of elongational flow and polarity of organomodified clay on morphology and mechanical properties of a PLA based nanobiocomposite / F. P. La Mantia in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 5 (11/2016)
PermalinkEffect of montmorillonite addition (modified and unmodified) on the structural, mechanical, thermal, and morphological properties of nanocomposites based poly(vinyl chloride) / Badra Bouchareb in MATERIAUX & TECHNIQUES, Vol. 110, N° 1 (13/06/2022)
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