How Does Hologram Printing Technology Work in Production?

With a rising need for hologram printing for advanced security and the previous hologram-printing technology being dated and inefficient, Stensborg noticed an obvious gap in the market and produced Holoprint®, the world’s first in-line hologram production system.

Customizable Holoprint machines by Stensborg directly merge nano imprints within the printing process, so it is possible to imprint 3D nanostructured patterns such as holograms onto existing or post-printed web material with no requirement for pre-fabricated foils. A minimum of 30,000 impressions can be created prior to the changing of imprint plates.

How Does the Holoprint Technology Work?

Stensborg’s exclusive, innovative technology also provides the user with:

  • Extremely sharp definition of structures
  • The capacity to print on essentially all surfaces, including solid, opaque, transparent or flexible
  • Optimized UV lacquers for 20 nm to 100 micron feature sizes
  • Durable polymer printing plates

Utilizing nanometer scale, relief structured templates, UV light, and light-curing resin, nano imprints can be made on almost all surfaces.

The nanoimprint is created when the curing light impacts the nanostructured imprint plate and hardens the light-curing resin that has been applied to the chosen areas of the material.

The Process

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Image Credit: Stensborg

  • The light-curing resin goes into the Holoprinter and a nip is produced between a counter pressure roller and the imprint roller.
  • The resin is cured when the optical engine’s light goes into the resin through the imprint plate and the imprint roller.
  • The hardened resin is taken away from the imprint plate. The hologram or any alternative nano-sized 3D pattern is now cured and imprinted in the hardened resin, prepared for any additional printing.
  • At this stage, the user can choose to:
    • Shield the holographic grating using the high refractive index protection
    • Utilize an off-line or inline metalizing step
    • Employ in-register lamination using air gap
    • Use the pattern as it is (which is the most affordable choice)

The Holoprint unit comprises a resin applicator that spreads the light-curing resin, with accuracy, to the selected area. Additionally, there is the imprinting unit that delivers curing light via a translucent transfer roller, called the Holoprinter.

A patented imprint technology, Holoprint® enables the user to immediately imprint 3D nano surface relief structures of a high resolution onto pre- or post-printed web material with no need for pre-fabricated foils.

It’s a straight-forward, two-step, affordable, and adaptable system that performs with existing printers or as an independent unit.

This information has been sourced, reviewed and adapted from materials provided by Stensborg.

For more information on this source, please visit Stensborg.

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