Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Infrared Emitters Improve Lacquered Surfaces

23.01.2012
Application Specialists at the Paint Expo Exhibition

Many screens, internal claddings in cars and high value cosmetic packages are manufactured from plastics and contain a protective lacquer or finishing. The drying of the coating on the plastic components is not a trivial matter, for the surfaces need to be perfectly cured without applying to much heat to the plastic. Infrared heaters transfer energy in a contact-free manner and are easy to control. Consequently, the heat is precisely dispensed and the quality of the lacquered surface is improved.


Highly polished plastic surfaces are achieved with UV lacquers, whose curing is improved with the aid of infrared. Copyright Heraeus Noblelight 2012

The combination of infrared heat and UV lacquers is innovative. On one hand, the energy efficiency of the lacquer curing is improved and on the other hand the curing itself is significantly better through the pre-heating.

Heraeus Noblelight is presenting infrared emitters in Hall 1 on stand 1519 at the Paint Expo exhibition, which takes place in Karlsruhe in April, when there will also be an opportunity for face-to-face discussions with application specialists.

Whether it is matt black or a high value shiny varnish, car interiors often feature decorative varnishes. Lipstick tubes, face cream containers and powder compacts often have to provide some indication of their high value contents. These containers are manufactured in plastics, as are switches and levers in cars, and are then improved by coating. This is where UV lacquer is often used.

Energy-Efficiency in Lacquer Drying

UV powder lacquer is heated by infrared emitters to around 100-120ºC and then cured using UV radiation. As opposed to the curing of conventional powder lacquers, there is no need for any further heating. In this way, functional components can be coated exceptionally energy-efficiently and coating/curing plants have minimum space requirements. All infrared emitters, which are easy to control and regulate, like short wave, fast-response medium wave and carbon infrared emitters with response times in the order of seconds, are well suited for melting powder lacquer before UV curing.

Infrared emitters transfer energy in a contact-free manner and generate heat directly in the material. As a result, there is minimum air movement during heating unlike hot air ovens. Consequently, infrared drying minimizes the danger of dust inclusions in the lacquer and improves surface quality.

Quality Improvement by Using Infrared with UV Lacquers

Some plastic surfaces have a scratch-resistant lacquer, providing a mirror surface. This prevents fingerprints from spoiling the high gloss finish or hand- or sun creams from attacking the plastic.

These varnishes are often UV varnishes, which use UV radiation to initiate the curing. This curing is carried out much better at higher temperatures or it can even be optimized by pre-heating. For this reason, plastic components of radio screens, selector levers or lipstick tubes are first pre-heated with infrared. If the UV lacquer is melted first by the heat and then cured with the UV radiation, the surface quality is improved.

Infrared heat is then always used when heating processes must meet particular specifications in terms of space, throughput or quality. Infrared emitters can be precisely matched to product and process and this saves energy and costs.

Heraeus Noblelight GmbH with its headquarters in Hanau and with subsidiaries in the USA, Great Britain, France, China and Australia, is one of the technology- and market-leaders in the production of specialist light sources. In 2010, Heraeus Noblelight had an annual turnover of 98.9 Million € and employed 689 people worldwide. The organisation develops, manufactures and markets infrared and ultraviolet emitters for applications in industrial manufacture, environmental protection, medicine and cosmetics, research, development and analytical measurement techniques

The precious metals and technology group Heraeus headquartered in Hanau, Germany, is a global, family company with 160 years of tradition. Our businesses include precious metals, sensors, dental and medical products, quartz glass, and specialty lighting sources. With product revenues of € 4.1 billion and precious metal trading revenues of € 17.9 billion, as well as over 12,900 employees in more than 120 companies worldwide, Heraeus holds a leading position in its global markets.

For further information, please contact:

Technical:
Heraeus Noblelight GmbH
Reinhard-Heraeus-Ring 7
D-63801 Kleinostheim
Tel +49 6181/35-8545, Fax +49 6181/35-16 8545
E-Mail hng-infrared@heraeus.com
Press:
Dr. Marie-Luise Bopp
Heraeus Noblelight GmbH,
Abteilung Marketing/Werbung
Tel +49 6181/35-8547, Fax +49 6181/35-16 8547
E-Mail marie-luise.bopp@heraeus.com

Dr. Marie-Luise Bopp | Heraeus Noblelight GmbH
Further information:
http://www.heraeus-noblelight.com/infrared

More articles from Trade Fair News:

nachricht Solar Collectors from Ultra-High Performance Concrete Combine Energy Efficiency and Aesthetics
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE

nachricht Energy-Efficient Building Operation: Monitoring Platform MONDAS Identifies Energy-Saving Potential
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

New Study Will Help Find the Best Locations for Thermal Power Stations in Iceland

19.01.2017 | Earth Sciences

Not of Divided Mind

19.01.2017 | Life Sciences

Molecule flash mob

19.01.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>