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Titre : All that glitters is gold ? : Ultra-thin aluminium substrates can be combined with a new pigment technology to produce highly opaque, chromatic effect coatings. The technology is presented below for the colour range "gold-silver-copper/orange" and compared with the state of the art from the usual colouristic and application aspects Type de document : texte imprimé Auteurs : Adalbert Huber, Auteur ; Frank J. Maile, Auteur Année de publication : 2021 Article en page(s) : p. 26-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Pigments à effets spéciaux Tags : 'Pigments à effets métalliques' nacrés' Index. décimale : 667.9 Revêtements et enduits Résumé : Gold has fascinated people down through the centuries because of its unique appearance. The yellowish metal possesses high hiding power, even when present in very thin layers, high gloss and extreme light-dark flop. Note de contenu : - Gold leaf
- Gold effect pigments pearlescents
- Metal interference
- Hiding still a problem
- UTP comes on the scene
- The new pigments
- Colouristic evaluation
- 1. Dependence of the L*(45°/AS15) values on PMC over a black background
- 2. Dependence of de(45°/AS110) values on PMC over black and white backgrounds
- 2. A*B* chroma and lightness L* for PMC/hiding over black background
- Colourful, thin-film applications
- Outdoor use, too
- Table 1 : Hiding power, PMC with the highest lightness L*, lightness L* max, Alman index, gloss (60°C) ; chroma C* ab (45°/as 15) and hazardous substance classification of the reference pigments and the UTP pigmentsEn ligne : https://drive.google.com/file/d/1ivTfiQH_IGVjBziRCkfNaI1PoZbpj4ph/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35849
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2021) . - p. 26-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22757 - Périodique Bibliothèque principale Documentaires Disponible Antioxidant effects of phenolic compounds on unsaturated lipids preventing the oxidation of chrome(III) / Yu Congzheng in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 1 (01-02/2010)
[article]
Titre : Antioxidant effects of phenolic compounds on unsaturated lipids preventing the oxidation of chrome(III) Type de document : texte imprimé Auteurs : Yu Congzheng, Auteur ; Yang Mingyang ; Ma Xingyuan ; Wang Rui, Auteur Année de publication : 2010 Article en page(s) : p. 33-38 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Composés phénoliques Hydroxybenzène Hydroquinone Polyhydroxy phénol Effets antioxydants Chrome(III) Lipides insaturés Acide oléique gallique pyrogallique-oléique Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : It is known that the oxidation of Cr(III) into Cr(VI) in leather is caused by the oxidation process of unsaturated oil. Breaking down the oxidation of unsaturated oil with hydroxybenzene [phenol] so as to prevent Cr(III) from oxidizing into Cr(VI) has been investigated.
In our previous work PVC sponge was used as a reactant carrier, taking advantage of the sponge's porous character similarly to that of leather. The oleic acid, chrome liquid and various phenols such as pyrocatechin, hydroquinone, gallic acid and pyrogallic-oleic acid were absorbed on to the sponge and then placed in a container at constant temperature and humidity to oxidize. The iodine value, peroxide value of oils and the contents of chrome(VI) were determined at regular intervals. The structural changes of oleic acid were analysed by IR.
The results showed that phenolic compounds had an inhibitory effect on the oxidation of oleic acid and so as to influence the oxidation of Cr(III) into Cr(VI) ; the greater the hydroxyl number of the single ring polyhydroxy phenol, the stronger the inhibitory effect on alpha-H oxidation, and the less formation of Cr(VI). When the hydroxyl numbers of the single ring polyhydroxy phenols were the same, the o-hydroxy phenol had stronger inhibition than p-hydroxy phenol ; meanwhile the structure change of olein acid indicated that Cr(VI) formation was mainly caused by hydroxyl radicals from a series of radical reactions derived from alpha-H autoxidation of oleic acid.En ligne : https://drive.google.com/file/d/1bYQvt56QHJMnuJOCuXGTdGF1c1LCg9uG/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8309
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 94, N° 1 (01-02/2010) . - p. 33-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011957 - Périodique Bibliothèque principale Documentaires Disponible Industrial plant Hygiene in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4544 (01/2010)
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Titre : Industrial plant Hygiene Type de document : texte imprimé Année de publication : 2010 Langues : Anglais (eng) Tags : Hygiène industrielle Conservation produits chimiques Etude impact Effets Bénéfices Index. décimale : 667.9 Revêtements et enduits Résumé : Biocides - The effects of poor industrial plant hygiene on the preservation of aqueous-based products and the benefits of the introduction of a good hygiene programme. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8398
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 200, N° 4544 (01/2010)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011913 - Périodique Bibliothèque principale Documentaires Disponible