Pröll GmbH at Fakuma 2024

Proell's core business is the development of custom-made chemical products for coating/decorating plastics, metals, glass and other materials, as well as innovative ink systems and protective lacquers for the IMD/FIM technology, and screen and pad printing inks.

Product News:

1. Norihan HTR N 990/011 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 the film insert molding technology.

Due to the development of the new deep black opaque color shade Noriphan HTR N 990/011 NC, a carbon black-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 pre-printing (under-layering) for 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 990/011 NC meets the increased requirements regarding thermal resistance and the demanding hydrolysis test in the automotive industry.

The Noriphan HTR N 990/011 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.

2. Noriphan HTR N 959 IR transparent black screen printing ink for IMD/FIM technology

With the development of the IR transparent Noriphan HTR N 959, a carbon black free, non-conductive black color shade is available for functional touch panel applications. The color shade has a black appearance in incident light. Under transmitted light the color shades appear transparent and is ideally suited for IR & lidar transmitting areas in display and touch panel applications.

3. Noriphan HTR N 945/546 - UV stabilized white

Noriphan HTR N 945/546 is a special adjusted UV stabilized white color shade, which can be used for BEV front modules. Front modules for electric cars will be decorative, multi-colored, and functional.

The screen printed ink layers are located in between a film and coating compound.

Thereby, the IMD/FIM screen printing inks are protected by the transparent films and hard coat layers. Nevertheless, the weathering stress on a whitely screen printed ink layer is very high, so that a special pigmentation is necessary to adjust the color shade stable.

With the Noriphan HTR N 945/546 - UV stabilized white, an optimized, nearly discoloration free, color shade is now available for the second surface application in front modules.

4. Noriphan HTR N 093/444 - mild formulated one-component lacquer

The transparent and with mild solvents formulated screen printing lacquer is part of the one-component Noriphan HTR N IMD/FIM ink range.

The lacquer is used to print on solvent-sensitive inks (e.g. Mirror Ink M3 N) and sensitive PC substrates, as well as to overprint and protect conductive silver pastes.

5. Noriphan N2K non-conductive 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 NoriphanN2K 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.

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
  

6. Adhesion Promoter PP L67333 - Adhesion Promoter for PP-IMD/FIM

Adhesion Promoter PP L67333 is an adhesion promoter for IMD/FIM technology (Film Insert Molding) which makes back molding of second surface screen printed polypropylene films with polypropylene injection molding material possible. Up to now, back molding of PP film laminates was possible only.

The one-component, solvent-based adhesion promoter PP L67333 has been developed for back printing pre-treated PP films. The IMD/FIM screen printing inks Noriphan XWR and Noriphan N2K are best suited for printing onto PP films.

The printed film shows excellent cohesion in compound values when back molding with various PP materials.

Automotive decorative parts and panels as well as motorcycle fairings and tool housings can be produced in durable quality by using the PP IMD/FIM process.

7. NoriCure ORL-1

The weather resistant UV curing lacquer can be used for overprinting of solvent-based ink systems (for example, Thermo-Jet, NoriPUR) as well as for printing on PVC self-adhesive films, Polycarbonate, rigid PVC and PMMA.

NoriCure ORL-1 protects the overprinted ink layer from UV-radiation and is outdoor resistant.

The protective lacquer is available as high gloss version NoriCure ORL-1/001 and as matt version NoriCure ORL-1/002. The screen printing lacquer shows excellent printing properties, good scratch and abrasion resistance as well as high chemical resistance.