6 résultat(s) recherche sur le tag 'proche''

Compatibility testing of colored cosmetics – A new tool for objective testing near infrared remission spectroscopy (NIR-RS) / M. Rohr in IFSCC MAGAZINE, Vol. 8, N° 1 (01-02-03/2005)

[article]  inIFSCC MAGAZINE > Vol. 8, N° 1 (01-02-03/2005) . - p. 11-15 Titre : Compatibility testing of colored cosmetics – A new tool for objective testing near infrared remission spectroscopy (NIR-RS) Type de document : texte imprimé Auteurs : M. Rohr, Auteur ; Nikolai Ernst, Auteur ; Annika Schrader, Auteur Année de publication : 2005 Article en page(s) : p. 11-15 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques -- Effets physiologiques Erythèmes Produits de beauté Spectroscopie infrarouge proche Tags : 'NIR-RS'  'Spectroscopie  infrarouge  proche'  UVB  'Compatibilité  de  la  peau'  Bioingénierie  'Réaction  érythémateuse'  'Bande  Rémission-absorption' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Previous methods for skin compatibility testing of colored cosmetics were limited by their ability to detect erythema reactions (reddening) underneath non-transparent products. The objective of this study is to present a new spectroscopic method to quantify reddening of human skin in vivo below colored cosmetics (e.g. hair dye, lipstick, makeup). The skin compatibility of non-transparent cosmetic products was determined by detection of a remission band in the near-infrared spectral region. In this study a spectrophotometer with a short arc xenon lamp and a single monochromator on the excitation side as well as an emission monochromator with a near-infrared photodiode (NIR photodiode) on the detection side was used. To induce an erythema reaction different test areas were treated with a 1 molar solution of ammonia. Afterwards they were colored with a permanent oxidative hair dye or lipstick. Before the coloring procedure, the baseline state of the test areas was documented by measuring the remission in the range from 1050 nm to 1250 nm. This measurement was repeated after the erythema reaction had been covered by a colored cosmetic. The results of data analysis revealed a remission band at approximately 1150 nm that was directly linked to the intensity of the erythema reaction. Non-visible reddening of the skin thus becomes measurable with this new method regardless of the optical properties of the product tested. Get PDF (52K) Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10462 [article]

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Process of elimination in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4553 (10/2010)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 200, N° 4553 (10/2010) . - p. 16-17 Titre : Process of elimination Type de document : texte imprimé Année de publication : 2010 Article en page(s) : p. 16-17 Langues : Anglais (eng) Catégories : Peinture poudre -- Analyse Spectroscopie infrarouge proche Tags : 'Peinture  poudre'  'Analyse  spectroscopique  infrarouge  proche'  'Mesure  de  l'humidité'  'Elimination  des  impuretés' Index. décimale : 667.6 Peintures Résumé : Development of a new modular system that measures low level moisture, oil and impurities in a combination of Near Infra Red (NIR) and image analysis that includes sample collection for batch auditing. En ligne : https://drive.google.com/file/d/18lPmMp8JSwHB747bskCtcMl1ZnF-sAiQ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10156 [article]

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A non-destructive method for assessing hair interior and surface damage by near infrared spectroscopy / Yuta Miyamae in IFSCC MAGAZINE, Vol. 9, N° 3 (07-08-09/2006)

[article]  inIFSCC MAGAZINE > Vol. 9, N° 3 (07-08-09/2006) . - p. 219-225 Titre : A non-destructive method for assessing hair interior and surface damage by near infrared spectroscopy Type de document : texte imprimé Auteurs : Yuta Miyamae, Auteur ; Yumika Yamakawa, Auteur ; Yukihiro Ozaki, Auteur Année de publication : 2006 Article en page(s) : p. 219-225 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Analyse  non  destructive'  Cheveu  'Dommages  chimiques'  'Spectroscopie  infrarouge  proche'  'Traitement  chimique'  'Ondulation  permanente'  Blanchiment  de  composant  principal'  'États  santé' Index. décimale : 668.5 Parfums et cosmétiques Résumé : This paper reports a non-destructive method for evaluating hair interior and surface damage based on near-infrared (NIR) diffuse reflectance (DR) spectroscopy. It is important to know the extent of chemical damage in the interior and surface proteins of the hair in order to choose an appropriate restoration agent or chemical treatment. Unfortunately, though there are many simple and non-destructive methods for evaluating the hair surface, the existing evaluation methods for monitoring chemical changes in the interior proteins are very complicated and destructive. Therefore, we have attempted to develop a new non-destructive method to evaluate the damage of the hair interior and surface simultaneously by using NIR-DR spectroscopy. The key to this study was the combined application of NIR-DR spectroscopy and principal component analysis to development of a method for the evaluation of hair damage and finding the most suitable wavenumber region (5060—4500 cm-1) for this evaluation. In this study, we developed a new evaluation method that can indicate hair interior and surface damage conditions induced by chemical treatments in a simple, rapid, non-destructive manner based on NIR-DR using a fibre probe on hair. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10446 [article]

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Super mild oxidation coloring : preventing hair damage at the molecular level / Thomas Doering in IFSCC MAGAZINE, Vol. 10, N° 4 (10-11-12/2007)

[article]  inIFSCC MAGAZINE > Vol. 10, N° 4 (10-11-12/2007) . - p. 323-329 Titre : Super mild oxidation coloring : preventing hair damage at the molecular level Type de document : texte imprimé Auteurs : Thomas Doering, Auteur ; Claudia Brockmann, Auteur ; Armin Wadle, Auteur ; Detlef Hollenberg, Auteur ; Thomas Förster, Auteur Année de publication : 2008 Article en page(s) : p. 323-329 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Acide  alpha  lipoique'  'Anti-oxydant'  'Cheveux  abimés'  'Colorant  pour  cheveux'  'Spectroscopie  infrarouge  proche' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Hydrogen peroxide is widely used for oxidation hair coloring or bleaching. It displays a high redox potential and easily penetrates into the hair fiber. This renders hydrogen peroxide capable of non-specific interactions with cortex and cuticle proteins resulting in irreversible cleavage of cystine crosslinks. Various classes of antioxidants were screened for their anti-hair damage effect in a permanent hair dye formulation using NIR spectroscopy. In parallel, the effect on the coloring and lightening performance was studied to exclude unwanted side effects on primary product performance. The screening criteria were fulfilled by organic disulfides such as α-lipoic acid but interestingly not by powerful antioxidants such as tocoperol, dibutylhydroxytoluene, or beta-carotene. Alpha-lipoic acid significantly protected human hair during oxidation coloring as demonstrated by (i) amino acid and protein analysis, (ii) surface polarity measurement, (iii) lipid analysis, (iv) differential scanning calorimetry, and (v) combing work measurement. Our results show that radical scavenging properties alone do not render antioxidants suitable for hair protection during oxidative treatments. The presence of disulfide bonds appears to be very favorable and it is likely that the intramolecular cross-link within α-lipoic acid provides a kinetically controlled protection for cystine crosslinks during oxidation coloring. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10417 [article]

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The application of microscopical techniques to the study of printing inks / A. M. Wildman in SURFACE COATINGS INTERNATIONAL, Vol. 79, N° 5 (05/1996)

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 79, N° 5 (05/1996) . - p. 230-234 Titre : The application of microscopical techniques to the study of printing inks Type de document : texte imprimé Auteurs : A. M. Wildman, Auteur Année de publication : 1996 Article en page(s) : p. 230-234 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Encre  'Microscopie  optique  électronique  transmission'  balayage'  champ  proche' Index. décimale : 667.9 Revêtements et enduits Résumé : By studying the processes and materials we use in microscopic detail, we can learn much about what we do and continue to optimise our products and processes. Microscopy is an important tool in the R&D and problem-solving laboratories of the surface coatings industry. Note de contenu : - SUMMARY OF TECHNIQUES : optical microscopy - transmission electron microscopy (TEM) - scanning electron microscopy (SEM) - environmental scanning electron microscopy - scanning probe microscopy - Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17067 [article]

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Use of a scanning probe microscope to measure marring mechanisms and microhardness of crosslinked coatings / Weidian C. Shen in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 873 (10/1997)

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