Those who shine are not necessarily all gold! Another possibility to achieve shiny metal finishing is to print directly on the metal substrate. In this sample, opaque white paint and conventional ink designed for foil printing were used, and the drawings used in samples 16 and 17 were printed on aluminum-coated label paper. The opaque white paint is applied only under the overprinted primary colors that do not contain golden elements in the image part. The gold effect is then directly produced on the substrate. The right-hand column of labels is printed on clear white paint applied once, and the left-hand column is printed on opaque white paint applied twice.
Printing machine configuration:
Rapida 106-6 varnishing unit, extended two-page take-up device printing unit 1-4: alternately used for conventional, compound and UV-generated general-purpose ink roller printing unit 3-6: conventional ink roller
KBA Rapida 106
KBA VariDry drying device technology:
-2 intermediate drying devices, each equipped with infrared and hot air drying devices-extended paper collecting device equipped with infrared and hot air drying devices-3 UV drying devices placed at the end of each 200 W / cm glazing unit 1 : Cavity scraper equipped with anilox roller for water-based glazing unit 2: Cavity scraper equipped with anilox roller for UV varnishing anilox roller: 120 lines / cm, hexagonal, absorption 11 cubic centimeters per square meter
Production technology:
The first 1-2 printing units: UV opaque white paint The third to sixth printing units: Conventional overprinting primary color intermediate drying device: Working in the first and second printing units Polishing unit: glossy water-based varnish, full-frame Light extended paper collection device: infrared and hot air drying device is turned off and placed in the last UV drying device to work
Metallized label + water-based glazing effect
The UV opaque white paint was applied in the first and second printing units, and cured with the inter-unit drying unit behind each of the two units. Subsequently, the conventional overprint primary colors used for foil printing were printed by a wet press wet method. In order to prevent damage to the surface of the label, the entire printed sheet is sealed with a full-scale water-based gloss glaze, and dried with an infrared and hot air drying device installed in the extended paper receiving device.
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