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The challenge of sustainable natural waxes / Martina Heldermann in SOFW JOURNAL, Vol. 142, N° 1 (01/2016)
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Titre : The challenge of sustainable natural waxes Type de document : texte imprimé Auteurs : Martina Heldermann, Auteur Année de publication : 2016 Article en page(s) : p. 2-4 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cires
Développement durable
Ingrédients cosmétiques
Ressources renouvelablesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Commonly used waxes such as beeswax or leaf, fruit peel, seed, bran, hull, and flower waxes are all from renewable sources. Consumers usually assume that natural things are also biodegradable and sustainable, but with the use of palm oil now a hot topic, other raw materials derived from plant and animal sources are subject to increasing scrutiny. To ensure the sustainability of cosmetic formulations, the entire supply chain needs to be reviewed with a focus on sourcing. This article examines the harvesting and processing of several widely used, and some more specialized, natural waxes, and evaluates their sustainability. Note de contenu : - Carnauba wax
- Sunflower seed oil
- Rice brand oil
- Myrica fruit waxPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26659
in SOFW JOURNAL > Vol. 142, N° 1 (01/2016) . - p. 2-4[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18169 - Périodique Bibliothèque principale Documentaires Disponible The effect of top surface lubrication on the friction stir welding of polycarbonate sheets / M. M. Z. Ahmed in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 1 (2021)
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Titre : The effect of top surface lubrication on the friction stir welding of polycarbonate sheets Type de document : texte imprimé Auteurs : M. M. Z. Ahmed, Auteur ; A. Elnaml, Auteur ; M. Shazly, Auteur ; M. M. El-Sayed Seleman, Auteur Année de publication : 2021 Article en page(s) : p. 94-102 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Cires
Fractographie
Lubrification
Polycarbonates
Soudage par friction-malaxage
Soudures -- Propriétés mécaniquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : In this work, top surface lubrication during friction stir welding of polycarbonate sheets was applied. A homogenous layer of Paraffin wax has been placed on the top surface of the joint area with a width that ensures to cover the shoulder diameter. Then FSW was applied using conventional FSW tool with rotating pin and shoulder at different FSW parameters (Rotation speeds of 1 000, 1500, 2 000 min–1 and welding speeds of 25, 50, 75,100 mm/min). The main objective of using the wax is to act as a lubricant that reduces the friction between the shoulder and the polycarbonate surface. The joints produced were investigated in terms of surface quality, internal defects, and mechanical properties. During FSW the wax is melted and played as lubricant between the tool shoulder and the polycarbonate surface and resulted in defect-free surface with no thickness reduction of the original plate. The transverse cross-section showed defect-free joints for the majority of the FSW parameters investigated. Tensile testing results showed a reduction of the tensile strength after FSW, and an enhancement in the tensile strength with the increase of welding speed or rotation speed. The fracture occurs at the joint zone and the fracture surface investigation using SEM showed the existence of spherulitic structure in the weld joint. Note de contenu : - EXPERIMENTAL WORK : Material and processing - Characterization and joint evaluation
- RESULTS AND DISCUSSION : Top surface appearance - Optical macrographs - Mechanical properties of the joints - Fractographic examinationDOI : https://doi.org/10.1515/ipp-2020-3991 En ligne : https://drive.google.com/file/d/1y3RnKiujBGbeYT-QwyK6NwzbSxLP8S16/view?usp=shari [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36354
in INTERNATIONAL POLYMER PROCESSING > Vol. 36, N° 1 (2021) . - p. 94-102[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23731 - Périodique Bibliothèque principale Documentaires Disponible The efficacy of a highly occlusive formulation for dry lips / Eiko Tamura in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 42, N° 1 (02/2020)
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Titre : The efficacy of a highly occlusive formulation for dry lips Type de document : texte imprimé Auteurs : Eiko Tamura, Auteur ; H. Yasumori, Auteur ; T. Yamamoto, Auteur Année de publication : 2020 Article en page(s) : p. 46-52 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cires
Cosmétiques
Couche cornée
Formulation (Génie chimique)
Huiles et graisses
Lèvres
Lèvres -- Soins et hygiène
Matériaux occlusifs
RugositéIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : Since skin on the lips has a lower water content in the stratum corneum (SC) and a higher transepidermal water loss (TEWL) value than skin on the cheek, the lips are usually very dry and rough areas. Therefore, a lip balm approach to increase occlusivity of the lips is generally used to reduce water loss. Although there have been reports of an improvement effect on lip roughness by specific care agents, differences in the effects due to the occlusivity of a formulation without a specific care agent have not been reported. The purpose of this study was to clarify the improvement effect on dryness and roughness of the lips by a highly occlusive formulation consisting of a combination of common oil and wax, not by a specific care agent.
- Methods : Twenty Japanese female subjects with normal skin (age range 20-39 years; mean 28.1) were enrolled in this study. A 4-week continuous use test was conducted using samples with low and high occlusivity. The degree of lip roughness and wrinkles was scored, the hollow index was assessed using ANTERA 3D images, and values of capacitance and TEWL were measured.
- Results : The hollow index was significantly correlated with both the appearance roughness score and the wrinkle score. The sample with high occlusivity showed significant improvement in the appearance roughness score, wrinkle score, the hollow index and capacitance of the SC. In a comparison between the groups of samples with different occlusive properties, a significant improvement effect in rough appearance was seen in subjects using the highly occlusive formulation.
- Conclusion : The hollow index assessed by ANTERA 3D imaging allowed the objective evaluation of the improvement in appearance. In the case of continuous use of the highly occlusive formulation, an improvement of capacitance in the SC, which is most correlated with lip roughness, was obtained after 2 and 4 weeks. These results demonstrate for the first time that a highly occlusive formulation is effective in improving the roughness of the lips, and this effect is due to the difference in the occlusive property not by a specific care agent.Note de contenu : - MATERIALS AND METHODS : Ethics - Subjects - Materials - Measurment of occulisivity - Biophysical measurements of the SC - Degree of lip roughness and wrinkles - ANTERA 3D image analysis - Statistical analysis
- RESULTS : Before continuous use - Relationship between the appearance score and the hollow index - Relationship between the appearance score and SC parameters - Relationship between the hollow index and SC parameters - Characteristics of lips after continuous use of samples - Changes in appearance score - Changes in the hollow index - Changes in SC functions - Comparison between two groups
- DISCUSSION : Correlation betwen visual scores before continuous use and measurement data - Improvement effect by continuous use testDOI : 10.1111/ics.12583 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33678
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 42, N° 1 (02/2020) . - p. 46-52[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21486 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : The flexibility of finishing Type de document : texte imprimé Auteurs : Flavio Guarda, Auteur Année de publication : 2002 Article en page(s) : p. 47-49 Langues : Anglais (eng) Catégories : Agent mattant
Charges (matériaux)
Cires
Colorants
Cuirs et peaux -- Finition
Emulsions
Epaississants
Liants
PigmentsIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The main purpose of finishing is to provide different types of leather with characteristics that satisfy the requirements of a continuously evolving global market.
These charateristics include following : colour, brightness, matting, feel, softness, print pattern, water resistance, special physical properties.
Almost all types of hides and skins can be finished. The final uses of the different leathers is wide and includes shoe uppers, furniure and automotive upholstery, garments and leather goods. It is therefore very important for the finisher to know the final leather use in order to adjust the finishing in the best way.
The range of the chemical products used in finishing is considerable, and combinations of these products can produce almost any effect or property. These auxiliaries can be divided into the following groups:Note de contenu : - BINDERS : Acrylic binders - Polyurethane binders - Butadiene binders - Protein binders - Crosslinkes
- MATTING AGENTS
- FILLERS
- WAXES
- WETTING AND PENETRATING AGENTS
- THICKENING AGENTS
- EMULSIONS AND SOLVENT BASED PRODUCTS : Nitro-ceLlulose lacquers and emulsions - Cellulose acetobutyrate (CAB) laquers and emulsions - Mono and two-component solvent-borne polyurethanes - Aqueous and solvent-borne silicones - Fluorine derivitives
- PIGMENTS
- LIQUID DYESTUFFSEn ligne : https://drive.google.com/file/d/1_IuF_5LsR0Dz_zarxXJ4W1DgVf0WtFdc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32264
in WORLD LEATHER > Vol. 15, N° 5 (08-09/2002) . - p. 47-49[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006180 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : The heart of the matter : Novel approaches to gloss reduction in UV coatings Type de document : texte imprimé Auteurs : Björn Tiede, Auteur Année de publication : 2014 Article en page(s) : p. 24-27 Langues : Anglais (eng) Catégories : Agent mattant
Cires
Essais (technologie)
Oligomères
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
Vernis -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Matting of 100 % solids UV curable coatings can be difficult and film properties may also be impaired. Tests are reported on two new products which reduce gloss in different ways from established additives. Compared with waxes and silicas, performance is less dependent on film thickness but more dependent on oligomer reactivity. Note de contenu : - The nature of the matting mechanism
- Conventional matting outlined
- Internal scattering provides matting in clear coats
- Alternative ways to achieve surface structuring
- Overview of the test procedures
- Results with the two new additives compared
- How film thickness modifies matting effects
- Performance tested in various oligomers
- Benefits and limitations summarisedEn ligne : https://drive.google.com/file/d/1T1AokqN08mkPZb-D1d3mSBgfWM7JQDD3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21484
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6 (06/2014) . - p. 24-27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16308 - Périodique Bibliothèque principale Documentaires Disponible The HMDA concept : a new method for selection of resins / John Simons in ADHESIVES AGE, Vol. 39, N° 12 (11/1996)
PermalinkPermalinkPermalinkTrendy surface structures / Frank Kother in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4473 (02/2004)
PermalinkUnderstanding dispersion of copper phthalocyanine alpha blue pigment in polyethylene masterbatch with the use of wax / Mert Yücetürk in COLORATION TECHNOLOGY, Vol. 136, N° 6 (12/2020)
PermalinkUsing food ingredients in cosmetics : pros and cons in GLOBAL PERSONAL CARE, Vol. 24, N° 9 (10/2023)
PermalinkUtilization for electrical insulation and civil applications / Amit Gawde in PAINTINDIA, Vol. LXVI, N° 9 (09/2016)
PermalinkWax additives - true multi-talents / Michael Bilger in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2022)
PermalinkWax attracts attention / Alain Bouvy in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 195, N° 4485 (02/2005)
PermalinkPermalinkWith a little help from wax / Guido Galbariggi in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4476 (05/2004)
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