Ink-jet printer - Import export

This special Metzner development is able to process cable wires with a diameter of up to 28 mm. The cycle time for this is 2000 mm / 35 seconds. The processing steps include long slitting, sawing, circumferential cutting, stripping, brushing and depositing. An integrated ink jet printer labels the cable wires with information or markings. As the heart of the processing method, Metzner uses a newly developed stripping head that combines a rotary cut with a powerful clamping and simultaneous rotation of the material. This enables a high-precision, multi-stage radial cut through the various layers of material. Microscopic quality inspection confirms that the processing is flawless with no scratches, pressure or abrasion marks. In addition to the high machining quality, the machinery also offers special precision: both the overall length and the machining position are maintained with an accuracy of 0.2 mm. The machine can process cable wires with diameters up to 28 mm.

Measurement of the surface tension The adhesion of a surface is usually directly dependent on the surface energy. If the surface energy is substantially lower than that of the printing ink used, the wetting is disturbed, resulting in poor adhesion. For this reason, plastic surfaces have to be pre-treated. Depending on the type of ink used the surface tension required can vary: solvent based inks => 38 bis 42 mN/m (=Dyn/cm) water soluble inks => 40 bis 44 mN/m UV inks => 44 bis 46 mN/m With the test inks of AFS, which are available from 34 to 56 dyn/cm surface tensions of plastic films can be easily and reproducibly determined according to DIN ISO 8296. Depending on whether the ink sticks or bubbles on the surface it indicated whether the surface tension is above or below the dyne-value of the currently used test ink. We also offer the test inks in a case with 12 bottles from 34 to 56 dyn/cm.