Knowledge base

In this lecture I will introduce to you a selective UV-Iight-source, which in its capacityopens up completely new possibilities and perspectives for UV-curing.As a starting point, I will give you a short summary about Heraeus Noblelight GmbHand its possibilities for this innovative technology.

The reactive monomer diluents used in UV-curable formulations play a majorrole. An ideal diluent should not only be an efficient viscosity reducer, it shouldalso have a low volatility, a high curing rate, a high degree of conversion and alow toxicity. Since a complete polymerization is never achieved, there willalways remain a residual amount of un

The appearance of malt finish or low gloss is created when light is reflected from a surface in aduff use manner. Such a finish can add a subtle, elegant appearance to a surface, provide betterhiding power for imperfections or the effects of wear, than a high gloss coating. A number of UVcuring applications require low gloss, or perhaps more accura

When using low-energy electron beam equipments a three-dimensional determinationof dose distribution is a must for reproducible production procedures.The short range of such electrons leads to a considerable alteration in the absorbed dosewith the penetration depth. One useful dosimeter is polyvinyl butyral (PVB) withpararosaniline cyanide which co

Electron-beam curing (non-thermal curing) is used industrially today for the surfacetechnology in the following fields:- Curing of pigmented lacquers on doors [1], [2]- All-around curing of lacquers on mouldings [3], [4]- Controlled through-curing of coatings on finished parquet [5]- High scuff-resistant floor-coverings [6]- Production of high-glos

The properties and characteristics of a textile substrate can be changed by the applicationof a polymeric layer or coating [1,2]. Coatings are applied to give textiles a more aestheticoutlook or to obtain a product with a better perfomance, e.g. watertightness or a higherwear resistance.Coatings used in the textile industry consist usually of plast

The UV curing process, as with any production process, has limits of the rangein which it will work properly. Within these limits, the process will achievedesired results. This range can be called the PROCESS WINDOW.The parameters which define the window are entirely dependent on the processinvolved. Cure, for example, is the object of the UV curin

Since the introduction of thermoplastic rubbers in the '70s, pressure sensitivehotmelts based on these raw materials have managed to gain an increasing marketshare. With increased environmental pressures applied to converters, replacementof solvent born systems is becoming increasingly important. Consequently a lot ofconverters have started using h