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The evaluation of printability and non-enzymatic NADH reduction of 4'-chlorophenylazo-2-naphthol for use as a printing pigment / M. Oktav in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B3 (09/2005)

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inSURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B3 (09/2005) . - p. 185-188

Titre :	The evaluation of printability and non-enzymatic NADH reduction of 4'-chlorophenylazo-2-naphthol for use as a printing pigment
Type de document :	texte imprimé
Auteurs :	M. Oktav, Auteur ; M. Ulgen, Auteur
Année de publication :	2005
Article en page(s) :	p. 185-188
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Chromatographie en phase liquide à hautes performances Colorants azoïques Colorimétrie Dispersions et suspensions Encre d'imprimerie Formulation (Génie chimique) Papier et carton couché Pigments Réduction (chimie) Vernis
Index. décimale :	667.9 Revêtements et enduits
Résumé :	The printability of 4'-chlorophenylazo-2-naphthol (CPAN) was evaluated on gloss-coated paper. The preliminary results indicated that the proposed pigment could be used in offset and oil-based ink production. The pigment and its potential reduction product, 4-chloroaniline, were then separated by a reverse phase high-pressure liquid chromatography system. The pigment was incubated with NADH at 37°C for half an hour at different pH values to investigate its possible reduction into the corresponding primary amines (ie 4-chloroaniline and 2-amino-1-naphthol). However, no reduction was observed. This finding indicates a desirable evidence for the pigment in terms of its stability against NADH (nicotinamide adenine dinucleotide), a known biochemical reducing agent in living organisms when the potential toxicity from aromatic primary amines is considered.
Note de contenu :	- Preparation of 4'-chlorophenylazo-2-naphthol (CPAN) - Preparation of the ink dispersions and the printing experiment - High-performance liquid chromatography liquid chromatography and reaction of CPAN with NADH - Table 1 : Printing ink formulation - Table 2 : Varnish composition - Table 3 : Some colour properties of CPAN on gloss-coated paper
DOI :	10.1007/BF02699571
En ligne :	https://link.springer.com/content/pdf/10.1007/BF02699571.pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5414

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