Knowledge base

High UV curing performance alone is no longer sufficient for sensitive applications. Low emission and low migration have become critical requirements for photoinitiators. A new, tetrafunctional -hydroxyketone radical photoinitiator showing a unique combination of low migration and high cure speed in spite of its high molecular weigh

The usage of micronized fillers in UV curing parquet lacquers is not common due to lack of transparency. Nevertheless there is the tendency, to use fillers more and more to increase scratch resistance and for cost reduction reasons.Nano additives are able to increase scratch resistance but the usage cannot be recommended in term

GHS is a global system for standardizing and harmonizing the classification and labelling of chemicals, which has been developed and agreed at UN level. It defines physical, health and environmental hazards of chemicals and creates classification processes that use available data on chemicals and mixtures for comparison with the defi

State of the art light-curing polymer fillings are good alternatives to amalgam dental fillings due to their very short curing time and their suitability towards mechanical and esthetic requirements. One of the important problems that is associated with these types of materials is the limited penetration depth of light which causes p

The main purpose of this work was to prepare samples of UV cationic polymerizable mixtures suitable for inkjet printing and evaluation of their physical and chemical properties. Samples consisted of four types of monomers, the photoinitiator and the stabilizer. Monomers 3,4-epoxycyclohexylmethyl-3´,4´-cyclohexanecarboxylate; 1,4-cycl

A low gloss or matt effect is frequently a key feature or requirement of many coating materials applied to the surfaces of man-made objects or constructions. In traditional low to medium solids, solvent- and water-borne coatings film shrinkage resulting from the evaporation of volatile components and crosslinking or polymerisation re

The use of anti set-off spray powder in sheetfed offset printing offers manufacturing advantages, but at the same time the powder represents a health hazard when inhaled, it can cause accelerated wear and tear on machinery and it requires additional cleaning. Dust deposits can also increase the risk of fire and explosion. Joint

In the past five or so years, commercial UV curing has moved out of the factory and into the field, with numerous improvements in UV curing equipment pushing the transformation of this technology into the area that one calls Field Applied UV Curable Coatings.In these field applied UV curing applications, the substrate to be coated is stat