Application Fields
Free radical curing UV flexo printing ink series for self adhesive labels, flexible packaging and foldable cartons:
- Corona pre-treated PE, BOPP, OPP and OPP co-extruded
- Top coated PP and PE
- Pre-coated PET
- PVC
- NC-lacquered aluminum
- Coated and uncoated paper
- Cardboard articles
Substrates may differ in their chemical structure or method of manufacture. A test for suitability must always be carried out before printing. Antistatic, mould release agents and slip additives may have negative effects on adhesion, and should be detected and removed prior to printing.
Characteristics
UVFX corresponds to the newest requirements of the label market and is therefore silicone free and contains no ITX. All colors keep their low viscosity also during storage over the guaranteed shelf life. Due to the low viscosity level, the ink series has excellent printing properties.
The inks of the UVFX series are constitutionally free from toxic elements and solvents. The raw materials used meet with the limits stipulated by the EEC regulation EN 71 (Safety of Toys), part 3 (Migration of Certain Elements) of December 1994.
UVFX shows excellent results in combination printing, too. The products are distinguished by the high color strength and brilliance.
Combination Printing
UVFX shows also excellent results in combination with Rotary Screen, Offset or Letterpress Printing. The ink typically offers superb results of intercoat adhesion on these ink systems or vice versa. Over printability is excellent with no reticulation.
For optimal results in rotary screen printing we highly recommend the usage of our silicone free opaque white.
Thermal Transfer
A UVFX printed ink layer can be overprinted with thermal transfer ribbons.
Hot-foil Stamping
A UVFX printed ink layer can be hot-foil stamped.
Cold-foil Stamping
UVFX is designed for excellent foil blocking results also at high speed printing.
Laser Overprinting
Experience shows that UVFX is over printable with many of the available laser printers, since UVFX is heat resistant when cured properly.
Lamination
A UVFX printed label can be easily laminated.
Processing Instructions
Pre-treatment
We recommend a corona pre-treatment of at least 38-44 dyne/cm.
Printing Equipment
UVFX ink series is suitable for all commonly used UV Flexo Printing machines. While changing from one ink series to another, e.g. changing from solvent based/containing or water base/containing or from cationic to radical UV curing systems, a proper cleaning of all machine parts and components is necessary in order to avoid any incompatibility problems due to the different chemical character of the different ink systems.
Individual ink systems among one another can influence the printing results negatively.
Ink series UVFX can be printed with all printing plate types developed for the usage of free radical curing UV inks. The relevant printing plates are available for example from BASF-Drucksysteme, DuPont or Asahi.
Curing Conditions
Suitable for medium pressure mercury lamps with 120-200 W/cm. UVFX has good curing properties and is suitable for a printing speed up to 150 m/min depending on the color shade, UV lamp configuration, ink color, anilox roller and transferred film weight.
The cleaning cycles of the reflectors and the position time of the UV lamps described by the machine manufacturer should always be observed.
Shelf Life
A shelf life of 12 months is guaranteed when storing the inks at 21ºC and in the original packing container. At higher storage temperatures the shelf life will be reduced.
An exception are the UVFX metallic colors which are expected to have a shelf life of up to 6 months.
Opened containers should be closed as prompt as possible to prevent a polymerisation of the inks due to the UV parts in the daylight.
Precautions
For further information on the safety, storage and environmental aspects concerning these products please refer to the Material Safety Data Sheet (MSDS).
Additional technical information may be obtained from our staff of the Technical Application Department.
| Ruco USA, Inc. | |
|---|---|
| Product Category | Industrial Inks |
| Product Number | UVFX-9010 |
| Product Name | Black C UVFX Flexographic Ink |
| Substrate | Plastic; Other; Paper |