Consumables

Proell at drupa

Monday 11. June 2012 - Proell KG'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.

On the occasion of drupa, Proell shoes new formable, abrasion and chemical resistant Dual-Cure lacquers, new screen and pad printing inks, effect pigment colors, and innovative printing solutions.
Live demo of printing and processing machines:
– The new pad printing ink, Tampo-Jet ECO, will be processed on a Morlock MKM 80 four-color pad printing press.
– Trolley coins will be produced on a Dr. Boy XS injection molding machine and decorated by film insert molding (IMD technology). Screen printed PC films in size of a coin will be inserted into the mold and backmolded with PC/ABS directly onto the ink.
– PC sheets decorated with NoriCure MPF will be deep-drawn with an Illig forming machine in shape of a bicycle helmet.
1. Norilux DC
Norilux DC is a formable, abrasion resistant Dual-Cure screen printing lacquer which is available in matt and high gloss versions. Norilux DC can be used as protection lacquer or hard coat on PC and PMMA films. Norilux DC is ideally suited for first surface coating of products manufactured in IMD/FIM technology. The Dual-Cure lacquer can be printed on textured film surfaces to produce abrasion resistant and transparent display windows.
The matt version of Norilux DC can be printed on uncured transparent films like Makrofol HF 278 hard coat film to create matt and high gloss effects in one item.
The Dual-Cure screen printing lacquer can be used for overprinting silicone free UV, solvent and water-based screen printing inks (pre-tests required). Norilux DC dries by evaporation of the solvents in jet dryers.
Before further processing of the printed films, it is necessary to remove nearly all solvent residues from the layer of lacquer and substrate. Well ventilated box ovens can be used.
Films decorated with Norilux DC can be 3D formed after box oven drying e.g. by high pressure forming or thermo forming. Afterwards, the formed films must be UV cured. Depending on the thickness of the lacquer layer, UV doses of 1200-2000 mJ/cm2 are necessary (Kühnast UV-Integrator, UV 250 to 410 nm, max. 365 nm). The cured lacquer layer shows excellent resistances to abrasion, chemicals and cleaning agents.
2. NoriScreen ALU
NoriScreen ALU is a new two component screen printing ink developed for printing on aluminum and metals. Due to its free of silicone formulation, the ink can be used for the manufacture of transfers and stickers. The ink system shows good adhesion and flexibility even on pre-treated PET films.
NoriScreen ALU is free of halogen, silicone, aromatics and cyclohexanone. The glossy ink system shows good weather resistance on suitable substrates.
3. Tampo-Jet ECO
Tampo-Jet ECO is a new environmentally compatible pad printing ink designed for the decoration of toys. The one component ink has good adhesion on PC, PS, ABS and SAN. Tampo-Jet ECO is free of halogens, aromatics and cyclohexane.
4. Mirror Ink Gold
Mirror Ink Gold is a new improved screen printing ink for printing golden mirror effects.
The effect ink is used for second surface decoration of transparent plastics and films (PC and pre-treated PET films).
While drying, the metal pigments are aligned parallel to the substrate’s reverse side.
Viewed through the transparent material from the first surface, the pigments create a golden mirror like effect. To improve the resistance of the printed mirror, Mirror Ink Gold should be overprinted with a mild solvent-based ink system (NORIPHAN XWR) or a water-based screen printing ink (Aqua-Jet FGL M).
Due to the pigment particle size, fabrics from 77 to 150 threads/cm (195 to 380 threads/inch) are recommended.
5. NoriCure MPF – a high glossy, deep-drawable UV curing screen printing ink
NoriCure MPF is a versatile UV curing screen ink, which is suitable for printing signs and displays, to be formed afterwards by vacuum forming. Briefcases, ring binders or banners can be decorated as well. NoriCure MPF shows good adhesion to a wide range of substrates such as PVC self-adhesive films, rigid PVC, polystyrene (PS), polycarbonate (PC) and pre-treated polyester (PET) substrates. The suitability for printing on PMMA and polypropylene (PP) must be tested.
The press-ready screen ink has high blocking resistance and excellent printability when printing fine details. Only low UV doses of 180-350 mJ/cm2 are necessary (Kühnast UV-Integrator, UV 250 to 410 nm, max. 365 nm) for curing the UV screen ink, depending on color shade and ink film thickness.
UV cured ink layers remain highly flexible and extremely formable. Printed films or sheets are deep-drawable around 350 % without color variation, depending on ink film thickness. The prints can be further processed by die cutting, trimming and folding.
Only pigments with high light fastness are used for the ink formulation. On suitable substrates, NoriCure MPF can be used for medium-term exterior applications. NoriCure MPF is over printable with solvent-based and water-based screen inks and vice versa. The UV screen printing ink is free of NVP.
6. NORIPHAN XWR screen inks for IMD/FIM technology
Proell offers a wide range of IMD/FIM screen printing inks (NORIPHAN HTR and N2K) and adhesion promoters (NoriPress SMK and AquaPress ME) for film insert molding.
The latest development is NORIPHAN XWR, a halogen-free ink system for IMD/FIM technology. NORIPHAN XWR shows extremely high wash out resistance and outstanding cohesion in compound. The mild two-component screen ink can be used as decorating ink or protection layer on PC films and PET films to avoid ink washout. NORIPHAN XWR can be printed on NORIPHAN HTR and N2K and vice versa.
Matt Lacquer ATM 1 (solvent-based) and Matt Lacquer ATM WB 4 (water-based) are formable matt lacquer systems for overprinting polycarbonate film instrument gauges (speedometer panels). Printed films are excellent deep-drawable by vacuum or high pressure forming. Both matt lacquers can be used as well for matting high gloss films made of PC, pre-treated PET and rigid PVC. The screen printed deep matt lacquer surface has a soft grip and shows good scratch and chemical resistances.
Norikop 10 HQ is a new premium emulsion for the manufacture of high quality printing stencils. The UV-Diazo polymer emulsion is suitable for processing solvent and water-based as well as UV curing ink systems.
The surface of the coated screen is not sticky, prepress repro films won’t be damaged. Used printing stencils are easily decoatable.