Quickly and gently around the bend / Thomas Schröder in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 5 (05/2019)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 5 (05/2019) . - p. 36-39 Titre : Quickly and gently around the bend : Darmstadt University of Applied Sciences and MHT optimize the hot runner for PET preform production Type de document : texte imprimé Auteurs : Thomas Schröder, Auteur ; Christian Tilsner, Auteur Année de publication : 2019 Article en page(s) : p. 36-39 Langues : Anglais (eng) Catégories : Canaux chauffants Empreinte (moule d'injection) Matières plastiques -- Moulage par injection Polyéthylène téréphtalate Préformes Objet constituant la majeur partie d’une pièce à fabriquer et qui nécessite un travail supplémentaire pour devenir une pièce finie. Ce terme s’utilise notamment pour le moulage, l’usinage, la taille d’outils en silex, la fabrication de fibre optique… Rhéologie Index. décimale : 668.4 Plastiques, vinyles Résumé : Consider this paradox : sensitive PET is particularly demanding when being processed because it undergoes rapid thermal and mechanical degradation, yet when PET preforms are being produced scant attention is paid to designing the all-important hot runner to suit the individual product. Much more often, a manufacturer will use several cold halves and a hot one and produce articles weighing from 6 to 40 g. Darmstadt University of Applied Sciences, Germany, and mold specialist MHT conducted a research project aimed at determining how the hot runner design affects preform quality. Note de contenu : - 4-cavity mold simulates 96 cavities - Dust formation varies with PET grade - Hot runner for rapid, gentle material transport - Market launch at K2019 - Fig. 1 : Hot runner of the test mold with three platens to simulate the length of the melt runners in a 96-cavity mold - Fig. 2 : The simulation shows the heat flow in a 96-fold hot runner system - Fig. 3 : Experimental setups with a melt runner of 4 mm diameter for the rheological simulation - Fig. 4 : The larger the diameter of the pipe, the lower are the pressure losses due to cross-sectional discontinuities - Fig. 5 : Degradation as a function of residence time for different PET grades at the same shear rate. Darmstadt University of Applied Sciences and MHT can already simulate dust formation in advance of PET preform projects in order to counteract it with design measures En ligne : https://drive.google.com/file/d/18_yMVbXcVMvbdXJXbeZjeDksDuOh3Htb/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32553 [article]

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The smart salon concept : Individualized hair care & coloration products / Thomas Förster in SOFW JOURNAL, Vol. 145, N° 4 (04/2019)  

[article]  inSOFW JOURNAL > Vol. 145, N° 4 (04/2019) . - p. 4-10 Titre : The smart salon concept : Individualized hair care & coloration products Type de document : texte imprimé Auteurs : Thomas Förster, Auteur ; Georg Knübel, Auteur ; Lucile Bonnin, Auteur ; Thomas Schröder, Auteur ; Elisabeth Poppe, Auteur ; Matthias Schweinsberg, Auteur ; Jordan Katzarov, Auteur Année de publication : 2019 Article en page(s) : p. 4-10 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cheveux -- Soins et hygiène Formulation (Génie chimique) Marketing personnalisé shampooings Index. décimale : 668.5 Parfums et cosmétiques Résumé : Due to the individual hair-type diversity, it is nowadays challenging to satisfy all specific consumer needs. The first of its kind connected Smart Salon is combining: data driven hair analysis, a personal hair-consultation application and the formulation of a customized shampoo to address this challenge. In a first step, a wearable device composed of a near-infrared (NIR) and a visible light sensor, analyzes the hair fiber. The NIR analysis collects: the cysteic acid concentration and the water content. The actual color of the hair fiber is also measured with a visible light sensor. Quantification of the hair status is performed through analysis of chemometric data with the open-source software KNIME. In a second step, a visual evaluation e.g. previous treatment, length, thickness of the hair is performed and the user expectations e.g. volume, shine, smoothness etc. are collected in the consultation application. Finally, all gathered data are combined in a decision matrix to formulate a customized shampoo. The compact mixing machine uses a proprietary manufacturing process to produce a custom care solution. The connected ecosystem is combining innovative technologies with empirical R&D expertise to offer the best possible care solution. Automatization of the hair analysis enables a more targeted approach for individualized shampoo development. Note de contenu : - The smart salon analyzer - The smart salon application and the hairdresser's questionnaire - The smart salon customizer and tailor-made shampoo formulations - Smart salon ecosystem architecture and operation - Fig. 1 : Expert input interface from the control smart salon application - Fig. 2 : Smart salon customizer dimensions - Fig. 3 : Smart salon ecosystem at a glance - Fig. 4 : Decision matrix displaying the smart salon analyzer's output results (health level and moisture level), the hairdresser's inputs (hair type, hair length, scalp condition and choice of parfum/color) and the resulting shampoo formulation - Fig. 5 : Assessment in vivo of the customized shampoo compared to the mass manufactured care gliss kur ultimate repair shampoo and the schaum repair and care shampoo - Table 1 : Basic components of the pre-mixes - Table 2 : Detailed composition of the ten different channels/pre-mixes En ligne : https://drive.google.com/file/d/15Riw2-u9OR7cJB-4eTWqY8yeSC2FhjZ1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32283 [article]

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