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A matter of precision / Peter W. Gabel in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4463 (04/2003)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4463 (04/2003) . - p. 18-19 Titre : A matter of precision Type de document : texte imprimé Auteurs : Peter W. Gabel, Auteur Année de publication : 2003 Article en page(s) : p. 18-19 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie Pigments à effets spéciaux Index. décimale : 535.6 Couleur Résumé : Continued improvement in instrument performance is vital if colour measurement techniques are to keep abreast of customer demands explains the author. Many industries, notably the automotive, printing, plastics and cosmetics industry, would not be what they are today if it were not for special effect pigments. At one time the first-generation classic effect pigments were all the rage, but now designers and stylists are crying out for the latest special-effect pigments. They are used to make an object distinctively appealing and fulfill this requirement admirably because of their gonioapparent nature. For example the change in their appearance with the change in angle of illumination or view. Looking at the past, stylists started with conventional metal pigments, like aluminium or bronze pigments, followed by pearlescent pigments, also know as mica pigments, pearl pigments or mineral effect pigments. In the last two years a new generation of effect pigments has become more and more popular. They are based on innovative substrates, like silica flakes or alumina flakes, ultra-thin multilayer interference film flakes or liquid crystals in organically crosslinked polymers. Note de contenu : - Eye of the beholder - Another way Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27930 [article]

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Combatting graffiti / Manfred Priesch in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4463 (04/2003)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4463 (04/2003) . - p. 24-26 Titre : Combatting graffiti Type de document : texte imprimé Auteurs : Manfred Priesch, Auteur ; Gerhard Reusmann, Auteur Année de publication : 2003 Article en page(s) : p. 24-26 Langues : Anglais (eng) Catégories : Polymères Revêtements -- Additifs:Peinture -- Additifs Revêtements anti-graffitis Index. décimale : 667.9 Revêtements et enduits Résumé : It's war : graffiti artists no longer stand a chance with the introduction of a new generation resin from the coatings industry. Graffiti, especially on buildings, public transport vehicles or public utilities, is a great nuisance. In recent years there has been a drastic increase in the amount of damage done to these utilities due to the application of graffiti. For instance in Berlin/Germany approximately 25,000 spray cans are misused to produce graffiti every day. And, as it appears impossible to reduce the amount of graffiti being applied, another solution must be found. The goal is the removal of graffiti using simple cleaning methods, if possible only with water. The costs of graffiti removal is immense. For a long time the coatings industry has thought of different possibilities of a simple method of graffiti removal. There are several possibilities to make coatings for public utilities and transport vehicles graffiti-resistant, including the use of sacrificial coatings and coatings having resistance to aggressive cleaning methods and chemicals. These include the modification of the coating with anti-graffiti resins, the modification of the coating with fluorosilane compounds the use of fluorocarbon-based coatings, and the installation of clear films (PTFE, for example). Price and working properties speak for the modification of coatings with anti-graffiti resins. Note de contenu : - Fair weathered friends - New generation resins - A novel approach - Protecting porous materials Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27937 [article]

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Wet grinding for UV inks / Stephen Jung in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4463 (04/2003)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4463 (04/2003) . - p. 30-31 Titre : Wet grinding for UV inks Type de document : texte imprimé Auteurs : Stephen Jung, Auteur Année de publication : 2003 Article en page(s) : p. 30-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Broyage par voie humide Encre d'imprimerie Procédés de fabrication Température -- Contrôle Index. décimale : 667.4 Encres Résumé : Printings inks can be difficult to process because of the need to prevent high temperatures during milling. The author describes how to achieve high speed processing at low temperatures. Processing high viscosity and temperature sensitive products is highly demanding for wet grinding technology. On the one hand, high product qualities are driven by high production capacities, but on the other hand, the temperature sensitivity of several products places high demands on the temperature control and control of the grinding system. High viscosity printing inks or printing inks pastes like UV-offset, sheet fed offset, heat set, screen printing inks and additives for printing inks is an application with a viscosity range of approximately 50 - 400 Pas. When the UV-printing ink market is examined closely, an enormous increase is evident. The sales figures worlwide increased from €175m in 1995 to €367m in 2000. In 2005, sales figures of €513m are predicted. Offset inks interlacing under UV-light have a maximum permissible temperature of 50-60°C and are extremely sensitive to contamination. Because of these characteristics, the process must change from an open contamination delicate grinding system with a three roll mill to an enclosed grinding system with optimised temperature control at the highest grinding efficiency. Note de contenu : - Grinding system - Machine construction - Complete solution - Mobile product tank Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27938 [article]

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