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Modular retard system for surface cleaning / Frank K. Brunecker in SOFW JOURNAL, Vol. 145, N° 5 (05/2019)  

[article]  inSOFW JOURNAL > Vol. 145, N° 5 (05/2019) . - p. 2-8 Titre : Modular retard system for surface cleaning Type de document : texte imprimé Auteurs : Frank K. Brunecker, Auteur ; Tim Seitz, Auteur ; Antje Schirmer, Auteur ; Joachim Leipold, Auteur Année de publication : 2019 Article en page(s) : p. 2-8 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de blanchiment Colloides Copolymère styrène-éthylène-butadiène Détergents Formulation (Génie chimique) Produits nettoyants Surfaces -- Nettoyage Textiles et tissus -- Lavage Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : We introduce a new gel-like cleansing agent based on hydrophobic oil gels. These preparations adhere to the surface and are removed only by the combination of mechanics and solvents. Thus, the ingredients are applied locally targeted and distributed evenly over time, which spares material as well as resources and leads to a superior stain removal. The solubility and viscosity of the system is adjustable by small changes within the formulation. Since the hydrophobic gels are chemically inert, almost all active ingredients like surfactants, bleaches, acids, bases, enzymes or solvents can be incorporated in high concentrations. In particular, incompatibilities between cleaning agents may be avoided. For instance, a low pH value can be locally stabilized in alkaline washing liquors in order to remove acid-sensitive soiling. Note de contenu : - Table 1 : Paste formulations with active species of acids (P-Ac), bleaching agents (P-Ox), alkaline and solvent (P-BS1, P-BS2) and without retard system (P-BS3) - Table 2 : Paste formulations with different polymer ratio - Table 3 : Paste formulations to vary the solubility and to determine enzyme stability - Fig. 1 : The protease activity is nearly constant in the paste compared to aqueous solution - Fig. 2 : a) Dissolution kinetics of P-S1-PS6. b) Solubility dependence of different pastes on the content ratio of sodium dodecyl sulfate to oil gel - Fig. 3 : a) Viscosity dependent on ratio between SEBS and SEP inused oil gel - b) Structural formula of the both copolymer SEBS and SEP which were used within the experiment - Fig. 4 : a) Spot removers P-Ac (armpit), P-Ox (curry) and P-BS1 (lipstick) compared to commercial spot removers. Keep in mind that in case of armpit stain a lower SRI value corresponds to better spot removal b) Difference in spot removal index by using spot removers with and without oil gel - Fig. 5 : a) Spot remover P-BS2 compared to commercial spot removers and detergent only for different stains - b) Difference in SRI of the spot removers compared to the use of laundry detergent only - Appendix : Trade names and suppliers of used chemical En ligne : https://drive.google.com/file/d/1pQnvnoZ9z85vZ2LP-9bYrjBq4_PRzljM/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32725 [article]

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Convenience as a major trend in hard surface cleaning / Hannah Benson in SOFW JOURNAL, Vol. 145, N° 5 (05/2019)  

[article]  inSOFW JOURNAL > Vol. 145, N° 5 (05/2019) . - p. 10-17 Titre : Convenience as a major trend in hard surface cleaning Type de document : texte imprimé Auteurs : Hannah Benson, Auteur ; Natascha Schelero, Auteur ; Christine Oberbillig, Auteur ; Gabi Ohlendorf, Auteur ; Mike Sahl, Auteur ; Jasmin Schepp, Auteur Année de publication : 2019 Article en page(s) : p. 10-17 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Additifs Brillance (optique) Détergents Mesure Polymères Produits nettoyants Surfaces -- Nettoyage Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : In today's modern world, convenience is key. This need for convenience permeates most basic tasks, such as cleaning our homes. All of us seek ways to lessen the time we devote to keeping our homes clean while maintaining a sanitary home environment. We all know, however, that cleaning is a time-consuming and often laborious task. Despite the recent undoubted progress in the quality of household care products, there is still room for cleaning products to fully leverage cutting-edge developments in chemical innovations in order to make cleaning a more efficient task. In response to this, Clariant developed Aristocare Smart, a high-performance, multi-purpose hydrophilic polymer. Aristocare Smart is an additive that can be added to all types of cleaners to deliver not only high-quality results but also to maintain the cleanliness of surfaces for longer. Cleaners that integrate this new polymer can now combat soils, including soap scum and calcareous build-up, effortlessly and significantly reduce spotting and streaking from product and water residues. Aristocare Smart forms a thin layer that "smooths" when applied to a surface, thereby preventing droplets of water and soit from "sticking " to the surface. In addition, Aristocare Smart leads to a consistent cleaner dis-tribution, which provides an ordered light reflection and thus leads to a streak-free and shiny surface. Aristo-care Smart hydrophilizes surfaces, which allows faster and longer-lasting water drainage from surfaces. Cleaning products with improved water drainage leave less water residue on surfaces and, as a result, less spotting once dried. This novel polymer allows long-term surface hydrophilization, even after consecutive rinsing with tap water, without leading to long-term build-up. Note de contenu : - TESTS AND RESULTS : Effortless soap scum removal - Anti-streaking - Fast water drainage and limescale prevention - PROOF-OF-CONCEPT : Adsorption measurements - Electrokinetic measurements - Contact angle measurements - Atomic force microscopy measurements - SUPPLEMENT : Experimental (QCM-D - Streaming current measurements - Contact angle measurements - Atomic Force measurement) En ligne : https://drive.google.com/file/d/1hGq-j2Q2Fly_xLhHfaG-5MVOO2sbXR0u/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32726 [article]

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High performance cleaning in challenging, highly alkaline applications / Olof Forsberg in SOFW JOURNAL, Vol. 145, N° 5 (05/2019)  

[article]  inSOFW JOURNAL > Vol. 145, N° 5 (05/2019) . - p. 18-23 Titre : High performance cleaning in challenging, highly alkaline applications Type de document : texte imprimé Auteurs : Olof Forsberg, Auteur ; Josmary Velasquez, Auteur ; Sorel Muresan, Auteur ; Stuart Holt, Auteur Année de publication : 2019 Article en page(s) : p. 18-23 Langues : Anglais (eng) Catégories : Chélates Dégraissage (nettoyage) Détergents Electrolytes Etiquetage écologique Formulation (Génie chimique) Mouillage (chimie des surfaces) Moussants Produits nettoyants Surfactants Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The demands of high performance cleaning especially in high electrolyte cleaning products can require uncommon surfactant properties to be effective in both consumer household and industrial and institutional (1+1) applications. In particular, highly alkaline formulations are shown to be most effective for removal of stubborn greasy or burnt on stains. However, such alkalinity also destabilizes many common surfactants, making the formulation of concentrated alkaline cleaners challenging; a problem similarly faced where high chelating agent loads are desired. We present findings from the development of two cleaner ingredients — Berol LFG 61 and Berol DGR 81 which have very different behaviours in use that can provide formulation performance-enhancement to many challenging applications. In this article, we will show these products deliver excellent performance in high caustic soda or chelating agent formulations — with one providing medium/high foaming, and the other very low/no foaming. We will provide framework formulations and performance-in-use data for a variety of representative application conditions to exemplify this behaviour. These high-activity ingredients are also mild, with excellent environmental properties which are compliant with EU Ecolabel standards. Note de contenu : - The cleaning challenge : degreasing mineral oil, naturals fats/grease and charred fat - particle removal and dispersing - Ingredients for extreme clean - Foaming properties - your choice - Good wetting in high electrolyte - Incorporating chelating agents with ease - Enhanced surfactant solubility with higher caustic load - Typical applications - Example formulations - Sustainable raw materials/EU Ecolabel compliant En ligne : https://drive.google.com/file/d/1GD_YmWvctGJvt03C9EXx6ZqEDiiZKxyZ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32727 [article]

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The OCX - efficacy enhancing system raises phenoxyethanol to a new level / Karin Stoffels in SOFW JOURNAL, Vol. 145, N° 5 (05/2019)

[article]  inSOFW JOURNAL > Vol. 145, N° 5 (05/2019) . - p. 24-28 Titre : The OCX - efficacy enhancing system raises phenoxyethanol to a new level Type de document : texte imprimé Auteurs : Karin Stoffels, Auteur Année de publication : 2019 Article en page(s) : p. 24-28 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Conservateurs (chimie) Cosmétiques Essais (technologie) Phénoxyéthanol Solutions aqueuses (chimie) Tension superficielle Index. décimale : 668.5 Parfums et cosmétiques Résumé : Cosmetic products must be adequately preserved against microbiological contamination, not only to maintain product integ rity, but to protect the consumer's health. Phenoxyethanol is the most frequently used preservative for this purpose and its popularity is growing. At its maximum allowed dosage of 1 %, phenoxyethanol alone often is not sufficient to microbiologically stabilize cosmetic applications. Therefore, phenoxyethanol is frequently offered as a blend with other preservatives or pro¬moters of antimicrobial efficacy. The new OCX — Efficacy Enhancing System by schülke allows phenoxyethanol to improve its broad-spectrum efficacy, especially against fungi. Note de contenu : - Fig. 1 : Most frequently used preservatives in Beauty & Personal Care (BPC) Products (Mintel GNPD, period 2018) - Fig. 2 : Development of phenoxyethanol used in Beauty & Personal Care (BPC) Products (Mintel GNPD, period 2014 — 2018) - Fig. 3 : Minimum inhibition concentration (MIC) of ethylhexylglycerin of typical germs causing spoilage of cosmetic products - Fig. 4 : Surface tension in aqueous solution (demineralized water) - Fig. 5 : Activity against A. Brasiliensis in germ count reduction test indemineralized water - Fig. 6 : Activity against spoilage causing microorganisms in germ count reduction tests in demineralised water - Table 1 : Challenge test (schülke KoKo test) in standard oil-in-water lotion Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32728 [article]

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Stable nanoemulsions - versatile applications in cosmetics and pharmacy / Gabriele Blume in SOFW JOURNAL, Vol. 145, N° 5 (05/2019)

[article]  inSOFW JOURNAL > Vol. 145, N° 5 (05/2019) . - p. 30-33 Titre : Stable nanoemulsions - versatile applications in cosmetics and pharmacy Type de document : texte imprimé Auteurs : Gabriele Blume, Auteur ; Katinka Jung, Auteur ; Fischer Dagmar, Auteur Année de publication : 2019 Article en page(s) : p. 30-33 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques Emulsions -- Emploi en cosmétologie Médicaments -- Administration par voie cutanée Nanoémulsions Peau -- Soins et hygiène Index. décimale : 668.5 Parfums et cosmétiques Résumé : The major disadvantage in dermal drug delivery is the low penetration rate of active ingredients into the skin. To over¬corne this challenge vesicular carrier systems have gained a wide attention especially in the field of nanotechnology like e.g. liposomes, ethosomes or lipid nanoparticles. Also nanoemulsions are considered to be promising candidates for dermal drug delivery with the advantage of low skin irritation, high drug loading capacity and drug penetration enhancement. Among them new stable anionic nanoemulsions based on the membrane-forming emulsifier "Glyceryl Citrate/Lactate/ Linoleate/Oleate", an eatable and skin friendly emulsifier de¬rived from sunflower, became superior over other vesicular carriers. Depending on the usage of additional emollients/ oils and stabilizers two different emulsions can be obtained: a multiple water-in-oil-in-water nanoemulsion (Hydro-Tops®) or an oil-in-water nanoemulsion (Lipo-Tope). Note de contenu : - Structures of the different nano-vesicles - Vesicle sizes and polydispersity index - Toxicity - Hydro-tops EGCG - Lipo-tops tocopherol - Fig. 1 : Structures of different nanovesicles - Fig. 2 : Stability of encapsulated EGCG - Fig. 3 : Autioxidative power of different EGCG formulations - Fig. 4 : Antioxidative power of different vitamin E formulations - Table 1 : Vesicle sizes and polydispersity Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32729 [article]

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Dispersing without destroying / Hans Joachim Jacob in SOFW JOURNAL, Vol. 145, N° 5 (05/2019)

[article]  inSOFW JOURNAL > Vol. 145, N° 5 (05/2019) . - p. 34-37 Titre : Dispersing without destroying Type de document : texte imprimé Auteurs : Hans Joachim Jacob, Auteur Année de publication : 2019 Article en page(s) : p. 34-37 Langues : Anglais (eng) Catégories : Dispersions et suspensions Expansion sous vide hydrocolloïdes Rhéologie Index. décimale : 660.2 Génie chimique Résumé : In home and personal care products, many hydrocolloids are used as thickeners and rheological additives. When mixed into liquids, initially agglomerates are created, vvhich then have to be broken dovvn again through dispersing. However, most of these polymers are shear sensitive, especially after hydration. Dispersing destroys the gel structure already formed and breaks down the desired viscosity. This problem can be solved with a process that separates the primary particles of the polymer powder before they get in contact with the liquid, then individually wets and disperses them immediately, thereby hydrating them without agglomerates — using the vacuum-expansions process. It is based on the fact that a powerful vacuum is generated directly in the liquid. The polymer is therefore added under maximum vacuum. In this way, the polymer particles are dissagglomerated before wetting. No further dispersion is required. Agglomerates are not created. Using the vacuum expansion process, the maximum effect can be achieved with a reduced concentration of hydrocolloids. Viscosity, thixotropy index, transparency, film formation and wetting behaviour, as well as many other properties this way will achieve a level not possible previously A subsequent uncontrolled thickening through inorganic thickeners, such as smectite or other layered mineral silicates is ruled out. Note de contenu : - Functionality must be ensured - Agglomerates have to be prevented - Shearing may cause irreversible damage - This is how the vacuum expansion method with the conti-TDS works - Wetting from inside - Fig. 1 : Vacuum-expansions process - Fig. 2 : Disintegration of agglomerates under vacuum expansion - Fig. 3 : Integration of Conti-TDS into existing or new plants Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32730 [article]

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