UV-and LED-curing digital printing inks

Innovative and precise applications

Inkjet printing, a printing process developed for industrial applications, offers unique solutions, a wide range of applications and is also an innovative printing process.

In recent years, a great deal of attention has been paid to this printing process: in addition to the further development of print heads and equipment technology, there have also been major advances in the field of ink systems.

Especially for users of UV or LED curing processes, the inkjet process offers innovative concepts and solutions.

Advantages of the UV and LED curing inkjet process and ink systems

In the printing process, the ink is continuously applied to the substrate without contact. The curing unit (UV or LED) installed in the printer then hardens the print in fractions of a second and is ready for the next finishing process or process step.

As in all areas of digital printing, this printing process offers the greatest possible flexibility in terms of customisability. This starts with a single piece for collections or samples, goes on to very small series and extends to large industrial production quantities - and this especially from the point of view of economic efficiency.


Advantages:

  • No set-up time
  • Greatest possible flexibility in printing and a very wide range of applications
  • Immediate further processing, as no drying time is required
  • Process reliability and printhead stability thanks to outstanding UV- and LED-curing ink systems that prevent the printhead from drying out
  • Chemical and mechanical resistance without post-treatment in the form of a protective coating
  • Wide variety of substrates
  • Guarantee of an ideal layer thicknes
  • Brilliant colour and print results

Printable materials and applications

Due to the contactless printing process, the inkjet process is ideally suited for use in numerous industrial applications, such as 3D materials. An incredible variety of materials can be printed, from rigid to flexible items in almost any shape and size. Marabu offers numerous ink systems within the UV/LED inkjet range for materials to be printed, such as

  • Cardboard, Dibond and Paper
  • Plastics and Foils of all kinds
  • Packaging
  • Glass and ceramics
  • Wood
  • Metals

Depending on the application, pre-treatment of the substrate may be necessary to avoid "running" of the ink and to ensure sufficient adhesion of the inks to the surface.

Your Contact:

Karl Ebner
Sales Director, Digital Inks

Email:eb@marabu.com

Marabu is your development partner for projects where the compatibility of the application is paramount or the advantages of UV/LED systems in general outweigh the disadvantages.

Our Expertise:

  • Single and multi-pass process inkjet inks
  • Know-how about the interaction of monomers, polymers, pigments and photoinitiators
  • Project-based development focus for best possible results
  • Extensive experience with all common industrial printheads (e.g.: Konika Minolta, Xaar and Ricoh)

UV- and LED-curing digital printing inks cure to a solid polymer film by exposure to the corresponding UV or LED light, which is permanently installed in the digital printing system. The stimulus of the UV/LED light causes the photoinitiator in the ink to decompose and start a chain reaction with monomers (building blocks for the later polymer film). The polymerisation was initiated by the light and the liquid ink reacts in fractions of a second to form a solid ink film.

Due to the high three-dimensional cross-linking that takes place during polymerisation, the ink film impresses with its durability and scratch resistance. As a 100% system, UV/LED inks are practically solvent-free. No VOC (volatile organic compounds) are released into the atmosphere. UV/LED inks are emission-free, sustainable and therefore more in demand than ever before.

In addition to purely graphic applications in the wide format segment, UV/LED inks are used for printing on cylindrical objects made of glass or plastic, for example. The range of applications is huge and is constantly expanding.

Direct printing on glass

With the Direct-to-Container concept, Marabu offers new standards. It is quick and easy to print directly onto glass. A label is no longer necessary! Both the high scratch resistance requirements of the beverage bottle industry and dishwasher resistance are met. In addition to cylindrical objects, printing on flat glass is of course also possible:

The advantages of UV/LED-based digital inks:

  • Direct printing on glass
  • Optimised for single pass and high jetting reliability
  • Superior adhesion in combination with primer P4
  • Dishwasher resistance up to 500 cycles