Knowledge base

The physical properties of UV-cured materials are substantially affected by the lamp systems used to cure them. The development of the intended properties, whether a varnish, an ink, or an adhesive, can depend on how well these lamp factors are designed and managed. The four key factors of UV lamps are: UV irradiance (or intensity), spectral distri

For many years it has been clear that an obvious home for radiation curing is the coil coating industry. The process involves the application of paint to a rapidly moving flat substrate. Advantages such as reduced energy costs, shorter curing zones and a greater degree of control over the curing process are often cited. So why have no coil coaters

The surface of polyethylene (PE) was modified by photochemical introduction of sulfonic acid groups (FI-SO3H). Polyethylene (LDPE as well as HDPE) was irradiated with UV light in the presence of SO2 and O2. The presence of sulfonic acid groups at the PE surfaces was proved by FTIR, REM-EDX and XPS measurements. The presented method of surface modif

The radiation-initiated polymerisation of unsaturated acrylic resins is the fastest method of curing paint films. By using acrylic derivatives of low molecular weight as reactive thinners, it ispossible to eliminate the need for volatile solvents either wholly or in part. Reactive thinners which are incorporated in the system increase the crosslink

The natural beauty and timeless elegance of wooden surfaces give them a special place in modern interior design. To meet the high performance requirements, wood must be coated with a protective finish. Radiation-curing systems, which are environmentally sound, save energy and emit virtually novolatile compounds, are increasingly being chosen as an

A survey of the industrial coatings market , reveals that both powder coatings and UV curable coatings are playing a significant role in offering end users alternatives to traditional low solids, solvent based coatings. Powder coatings, with their excellent durability and mechanical properties, have established a strong position in many industrial

There are a lot of UV sources commercially available that can be used for curing.Depending on theprinting and exposure application, different UV lamps are needed to adaptspectral distribution,process speed, thickness of the material to be cured etc. UVlamps are produced with lengths varyingbetween a few centimeters and four meters, specific electri

The use of cationic UV curing systems based on cycloaliphatic diepoxides continues to growin several applications, mainly within the rigid and flexible packaging sectors. Today'sdevelopment consists primarily in optimizing cationic formulations in order to meet more stringentend use requirements. The kinetic of photoinitiated cationic polymerizatio