Do you want your printed products to emit a special light? Using metallic effect varnish allows you to get bright and eye-catching finishing effects, for example due to exclusive packaging or trademarks. These varnishes are water-based and UV-based. The sample here obtained its brightening effect from an aqueous golden varnish.
Printing machine configuration:
Rapida 106-4 + LTTL (double glazing unit), extended two-page paper collection device.
Printing unit 1-4: 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 blade equipped with anilox roller for water-based glazing unit 2: Cavity blade equipped with anilox roller for anilox roller of UV glazing unit 1: 120 lines / cm, Hexagonal shape with an absorption capacity of 9 cubic centimeters / square meter Anilox Roller for Polishing Unit 2: 160 lines / cm, hexagonal shape with an absorption capacity of 7 cubic centimeters / square meter
Production technology:
No. 1-4 printing unit: Conventional overprint primary color glazing unit 1: water base layer coating, full-frame glazing intermediate drying device: work, each equipped with infrared and hot air drying device glazing unit 2: water-based metal effect The varnishing oil, part of the varnishing extended paper collection device: infrared and hot air drying device is turned off and placed in the last UV drying device to work
Metallic effect glaze
The conventional overprinted primary colors are printed in the wet press wet mode in the first to fourth printing units. Subsequently, the waterborne primer was applied in full width in the first glazing unit. After the ink and primer are dried in the two intermediate drying units, a photosensitive resin glazing plate is used in the second glazing unit to apply a metallic varnish. Finally, the whole printed sheet is dried with the infrared and hot air drying device installed in the extended paper receiving device.
Metallized varnishing together with hot bronzing and cold bronzing is considered to be the most commonly used finishing process. The gloss and quality of this varnish far exceed the level that gold and silver powder ink can achieve. Even so, they still cannot compare with the results that can be achieved by bronzing.
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