Unit uv curing flexibility

The inter-unit curing device itself is equipped with a plug-in module, which takes 2 to 3 minutes to be replaced, and can be installed between the printing units. This production flexibility allows production backup. They are placed according to the needs of each job, to adapt to the needs of different ink colors, printing color sequence and ink coverage. The maximum number of modules is one UV module per print unit. It is possible to use fewer modules; it is recommended to use at least one module for every two print units.

The inter-unit desiccator was placed behind opaque white, metallic, printed colors 15% above standard density, and dark (black, blue, green) and printing units with ink coverage exceeding 80% of the plate. Specially modified inter-drier drying units can be used for opaque white.

When using conventional ink and dusting, remove the UV lamp from the delivery device. In order to avoid contamination, there is a false device that can be inserted as a safety device without the printer not being activated.

Non-classical UV (hybrid) inter-drier drying unit: UV printer end curing is not suitable for high-speed printing with high ink coverage. Tests have shown that printing low ink coverage on high gloss papers is sufficient after a final printing unit, but two units are required for printing high ink coverage on low gloss printing materials Inter-drying device.

UV coating end drying unit and case: For best results, the UV drying unit on the end of the press should be placed as close as possible to the delivery unit so that the varnish is spread as evenly as possible before curing.

If all printing units have an inter-unit UV docking station, there is complete production flexibility. The position of the existing inter-UV drying unit in these printing units can be changed according to the requirements of a given job (color sequence, brightness, and ink coverage).

Combined infrared + hot air + UV drying system

The drying device installed at the end of the printing press has an on-line coating unit and a UV device, which is used to rotate the printing process:

Hot air: used for waterborne, infrared (IR) lamps to heat water, produce water vapor, which is discharged by the hot air knife and discharged by the suction system.

Infrared part: Helps reduce the (normally offset) ink viscosity (not UV inks) and speeds the absorption of the substrate material.

UV section: Ensures final curing of UV inks (special UV and hybrid UV modes) and UV varnish.

Infrared unit drying device

The inter-infrared inter-drier drying device before the first glazing unit heats the printed sheets and helps to uniformly distribute the lacquer layer.

An infrared inter-drier drying device before the second coating unit dries the first coating and heats the printed sheets to help prevent the production of an orange peel surface (caused by the waterborne particles captured by the primer layer when using an aqueous primer). Causes the gloss to drop; too much energy only solidifies the surface).

Infrared inter-drier drying unit accelerates oxidative drying.

With the primer/UV process, it is possible to use an infra-red inter-drier drying unit to apply the module to the pre-heated sheet in the primer coating application process to help the primer dry.