[article]
Titre : |
3D chair technology |
Type de document : |
texte imprimé |
Auteurs : |
Kari Soljamo, Auteur |
Année de publication : |
2005 |
Article en page(s) : |
p. 22-23 |
Langues : |
Anglais (eng) |
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
The author from Tikkurila Coatings looks at alternative methods to coating chairs, and highlights the benefits and limitations of UV Curing.
The advantages of a system curing UV-lacquers under CO2 can be well demonstrated when chairs and 3D components are coated. However, in spite of active demonstrations of this curing method, there is a lack of commercial devices in the market. Chair producers typically use polyurethane (PU), nitrocellulose (NC) and acid catalysed (AC) coatings. These coatings give a good performance, but unfortunately, due to the relatively low solid content larger producers are not able to meet the requirements set out in Directive 1999/13/EY with these produtcts after 2007. Waterborne 1-component products may also be used, but the resistance againts chemicals and especially hand cream is hard to achieve. UV coatings show both, ecological and economical benefits. The usage of radiation curable coatings is well established in the field of flat substrates. The most frequent applications of the UV technology are coating of paper, wood, and plastics. Unfortunately these applications have been limited to flat substrates where a homogeneous distribution of the UV light over the surface can be assured. In the case of 3-dimensional substrates a concept has not been developed which assures that the UV dose applied to each part of the surface is sufficient to overcome the effect of oxygen inhibition. |
Note de contenu : |
- Tikkurila's goal
- Oxygen reduction
- Real time observation
- Additional benefits
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Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27605 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 195, N° 4495 (12/2005) . - p. 22-23
[article]
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