Proell's core business lies in the development of custom-made chemical products for coating/decorating plastics and other materials, as well as innovative ink systems for IMD/FIM technology, and screen and pad printing inks.
Noriphan HTR N 990/010 NC - non-conductive black for IMD/FIM technology
Noriphan HTR N is an established, formable, backmoldable and solvent-based one-component screen printing ink for film insert molding technology. Due to the development of the new deep black color shade Noriphan HTR N 990/010 NC, a carbon-free, non-conductive black is available for printed electronic applications now. The color shade has a high optical density, an electrical resistance in the giga ohm range and is radar transmissible. The color shade can be used for decorative prints but is mainly used for plane multi-layer printing or backing of metallic and polymer conductive pastes. Carbon-based pigments, so called carbon blacks, normally used for black color shades, are electrically conductive and can interfere with the functional structures. Noriphan HTR N 990/010 NC meets the increased requirements regarding thermal resistance and the demanding hydrolysis test in the automotive industry. The Noriphan HTR N 990/010 NC color shade has been formulated and optimized regarding the interlayer adhesion and shows good adhesion in compound values in the final film/ink/injection material composition.
Non-conductive black color shades for IMD/FIM
Noriphan N2K screen printing ink for IMD/FIM technology
Noriphan N2K is a well-established solvent-based two-component screen printing ink for IMD/FIM technology. The glossy ink system is optimized for processing thin PC films (< 175 µm). Films decorated with Noriphan N2K show no curling effect. Nowadays this IMD/FIM ink system is used especially for printed electronics applications. The deep black and opaquely formulated color shade Noriphan N2K 953 is suitable for the decoration of touch panels and shows high electrical resistance in capacitive applications. The Noriphan N2K 953 color shade meets the increased requirements regarding thermal resistance and the demanding hydrolysis test in the automotive industry. Noriphan N2K ink system is also used for overprinting, embedding and protecting of the sensitive conductive pastes. The ink layers prevent from wash-out effects during the injection molding process. Extensive testing in our R&D lab and application department have shown, that increasing the amount of hardener up to 3-4 %, improves the wash-out resistance of the ink layers significantly. This applies to all color shades in the Noriphan N2K range.
Films printed with Noriphan N2K are perfectly suitable for the IMD/FIM process (In-Mold-Decoration/Film Insert Molding):
- Good formability e.g. high pressure forming or thermoforming
- Excellent temperature and washout resistance during injection molding
- Good and durable bonding with injection molding resins, preferably PC, PC/ABS and silicon rubber resin
Tactotek Functional Display Panel in two-film contruction, PC hard coat film and the conductive pastes are second surface printed with Noriphan N2K