Knowledge base

This knowledge base contains all articles and proceedings ever presented at RTE conferences and seminars. You may search through the database using the filters below. Articles are free of charge for our members (after login).

Low Migration UV-curable inkjet printing inks for packaging applications

For packaging applications involving food or beverage, food safety is very important. In analogue printing technologies, UV-curable inks are used for indirect food contact applications. These UV curable low migration (LM) inks are typically based on using multifunctional polymerisable compounds and photoinitiators with a relatively h

Investigation of termination reactions in photoinitiated radical polymerisation of UV powder coatings

The termination mechanisms occurring in a UV-powder coating system during photopolymerization process are investigated and compared to a conventional acrylate monomer system. First, the photoinitiator concentration, viscosity and conversion of the monomer effects on the termination reaction occurring in photopolymerization of a

Increasing process efficiency - curing of three dimensional subjects with only one UV-lamp

MBS®-3D three-dimensional UV curing with reduced lamp quantity. Topics included in paper:Today‘s technical statusPresentation of MBS®-3DAdvantages for the userResults from first field testsPhotos of the lab setup

Improved Surface Properties with Multifunctional, Cross-linkable Additives for UV Systems

Established siloxane chemistry and additivesNew building blocksTwo synthetic strategies towards UV additivesApplication results

Hybrid Photoinitiator Sensitization

The sensitization of 3 photoinitiators was studied by FTIR spectroscopy. The tested initiators were: HP1 – (5-2,4-cyclopentadien-1-yl){(1,2,3,4,5,6-)-{-[4-(2-hydroxy-2-methylpropanoyl)-phenoxy]ethoxy}-benzene}-Fe(II)-hexafluorophosphate) prepared in our laboratory and two commercially available photoinitiators for comparison (radical ph

Printing Food Packaging in UV

How to print food packaging with UV inks?

How to decide on the right UV primer for wood

For industrial parquet applications, 100% UV coatings have been very well established as primers, sealers and topcoats for many decades. They combine ultimate productivity, high quality and very low VOC. Another option is the use of waterborne UV primers in combination with 100 % UV sealers and topcoats. Waterborne primers are used d

Visible light photoinitiating systems using borate salts as coinitiators applied to the laser imaging area

This paper describes the photochemistry of visible light photoinitiating systems (PIS) developed for free radical photopolymerization (FRP). These PIS consist of borate salt used as coinitiators combined with different dyes absorbing the UV-visible range. It was shown, that these systems lead to high rates of polymerization and high