For hot foil stamping the glue layer must be activated well and pressure needs to transfer from the carrier to the surface. Depending on the substrate surface, the transfer is easier or more demanding. Consequently different applications demand different characteristics of the applicator. For some applications rotary is better, for others flat bed has a great advantage.
Flat bed hotfoiling
Flat bed - Highest quality for hotfoiling on uncoated substrates
The stamping process on uncoated papers is more demanding than on coated. With rotary application - due to the short line contact between the tool, the foil and the substrate - often 35, 40 or sometimes 50 m/min cannot be exceeded. Pantec GS Systems flat bed systems can increase the contact time by factor 7 or higher. This allows higher linear speeds, better transfer quality and cheaper foils and cheaper tools.
Typical business areas for hotoiling on uncoated substrates: Wine, spirits, security, tax stamps
Solutions for flat bed hotfoiling
RHINO™ is a fast flat bed hot foil embossing and hologram insetting system with up to 25´000 strokes per hour. With its revolvable head even multifoil designs can be manufactured at reasonable speed in just one single pass.
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Rotary is perfect for hotfoiling on coated substrates
In rotary stamping the foil is applied to the web by a rotating cylinder. A main characteristics is that the transfer time for the glue activiation is an inverse function of press speed. Since the contact point between the stamping cylinder and the mandrel is theoretically a line, the contact time while the web is moving becomes very short with an increasing web speed. This extremely short dwell time explains why porous materials are difficult to process rotary. Therefore rotary stamping is appropriate for closed surfaces, such as on coated papers and plastics.
Typical business areas for hotfoiling on coated, closed substrates: Food, cosmetics, health care, security
Solutions for rotary hotfoiling
CHEETAH™ is a rotary wide web hot foil stamping system, providing efficient foil saving and precise hologram placement. It is available for web widths of 850 mm and 1060 mm. Optionally also foil embossing is available.
FLOWMAN™ is a rotary stamping system, based on an oil heated mandrel.
ELECTROMAN™ is a rotary stamping system, based on an electrically heated mandrel.
Both systems fit perfectly for narrow web presses.