I wrote, edited, and managed an outside designer and mailing of this corporate quarterly newsletter for Fusion UV Systems, now Heraeus Noblelight America, LLC, as a consultant/freelance basis. This included research and interviews for writing articles, obtaining photos, layout review, mailing list preparation both print and electronic, and posting to the website.
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Fusion UV Spectrum Newsletter - Summer 2009
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LATE BREAKING NEWS
In late March the organiz-
ing committee of the 12th
International Conference
on Radiation Curing in Asia
(RadTech Asia 2009) formally
announced their decision to
postpone their conference
from 2009 to 2010 stating,
CALENDAR OF EVENTS
Photopolymerization
Fundamentals 2009
Conference
RadTech, the Association
for UV & EB Curing
Technology, proudly
announces its partnership
with Photopolymerizations
IUCRC and the University
of Colorado to present
Photopolymerization
Fundamentals 2009 taking
place June 21-24, 2009 in
Breckenridge, Colorado.
This four-day conference,
focusing on photopoly-
merization will feature hot
topics such as Biomaterials,
Hydrogels, Thiol-Ene polym-
erizations , and other novel
concepts and emerging appli-
cations. “The meeting brings
together international leaders
from industry and academia
to present and discuss the
basic fundamentals of pho-
topolymerization reactions
as well as the most excit-
ing future directions of this
technology,” says conference
chairman, Chris Bowman,
PhD. For more information
on this conference, please
visit: http://radtech.org/
pfconference2009/index.htm
Look for Fusion UV speaking and/or exhibiting at the following events.
2009 May 21-22 International Metal Decorators Association Chicago, IL
June 2-4 Coatings for Plastics Symposium Lombard, IL
18 Fusion UV Technical Training - LH6-LH10 Gaithersburg, MD
22-24 ANTEC Chicago, IL
August 20 Fusion UV Technical Training -
F600S-VPS/I600/I250 Gaithersburg, MD
Sept 30-1 Sartomer Formulators Seminar I Exton, PA
October 14-15 RadTech Europe Conference Nice, France
22 Fusion UV Technical Training - F300S-F450T Gaithersburg, MD
November 8-11 IWCS Charlotte, NC
December 3 Fusion UV Technical Training - LH6-LH10 Gaithersburg, MD
RadTech Europe and Japan
Conference Changes Reflect
Current Economy
“given the current economic
situation in Japan and the rest
of the world, RadTech Asia
2009 should be postponed for
about one year because it is
inevitable that, if it is held in
November 2009 as scheduled,
the number of participants
from Japan and abroad will
fall short of the goal, and the
Organizing Committee will
suffer a substantial loss in the
finances of the conference.”
The Organizing Committee
expects to announce the new
conference dates by
June 2009.
As a result of the current
worldwide economic
situation, organizers of
the RadTech Europe 2009
Conference & Exhibition
moved to shorten the event,
which takes place in Nice,
France in October. “In critical
times with difficult cut-back
decisions, resources must
be invested with the most
cost-effective and valuable
options,” stated the formal
announcement. The RadTech
Europe Association and
Vincentz Network jointly
decided to condense the
up-coming conference to
two days to save travel time
and costs for exhibitors and
attendees. The new event
dates are Wednesday, 14th -
Thursday, 15th October, 2009.
As a result of shortening
the duration of the event,
organizers lowered both the
exhibition and the conference
fees. Meeting under the
theme “UV/ EB - Sustainable
Technology”, more than
600 visitors and conference
delegates from Europe and
beyond are expected.
Visit http://www.european-
coatings.com/radtech/index.
cfm for more details and to
register.
2. Late Breaking News
page 4
Dr. Decker to Receive
Chemical Society Award
page 2
Globally Speaking
page 2
Rastal Produces
10-millionth Drinking Glass
page 2
by Susan Mitchell
Nearly everyone is familiar
with ultrasound, defined as
sound vibrations greater than
20,000 Hz, which is beyond
the upper limit of human
hearing. We’ve seen it used
as a medical diagnostic tool,
for jewelry cleaning, by bats
to locate prey, or for welding
plastic parts. But what does
ultrasound have to do with
UV curing technology? To
answer that question look
to Ultrasonic Systems, Inc.,
a family-owned company
headquartered outside
Boston, MA.
Since 1989 Ultrasonic
Systems, Inc. (USI) has
UV in the News
page 3
need for masking
and significantly
reduces overspray
and coating defects
such as bubbles and
pin holes.
Complete
UV Coating and
Curing
With the increasing
use of UV-curable
coatings for these
applications, USI
saw the opportunity
to combine the two
technologies into a
complete coating and
curing system. Their
Ultra-Cure™ UV
curing module offers
reliable and fast top
side curing of UV
curable conformal
coatings, and other
UV curable materials.
It can be easily
integrated with any
conveyorized USI
PRISM Ultra-Coat™
coating system.
“Our customers
were often using
UV-curable coatings
and had some
difficulty finding a
way to integrate the
coating and curing.
We were able to
design a modular
UV curing system featuring
an edge carrying, pin chain
conveyor and SMEMA
capability that integrates
easily to the Prism Ultra-
Coat systems for a turnkey
solution,” commented Mr.
Larry Sirois, USI Applications
Engineer.
Coating Parameters
USI’s Prism coating systems
are controlled by a Windows
XP based operating system
utilizing an integrated
PCI motion controller. A
graphical user interface (GUI)
is used to set all operating
parameters and create
process programs. Coatings
manufactured a variety
of coating application
equipment based on their
patented “nozzle-less”
Ultra-Spray® ultrasonic
technology. This superior
alternative to conventional
air-atomizing spray nozzle,
film coating and dispensing
technology offers particular
advantages for applications
such as conformal coating
for electronic assembly,
semiconductors, fuel cells,
medical coating and solar
cells. Because ultrasonic
spray can apply a coating
more precisely, uniformly,
and thinner than more
traditional coating methods,
it virtually eliminates the
Ultrasonic Meets
UV Curing Technology
A Nonconformist Solution for
Conformal Coating
Summer 2009
How it Works
Ultra-Spray ultrasonic technology has three components:
an ultrasonic transducer with a spray forming head, an
ultrasonic generator and an independent fluid applicator.
Ultrasonic Transducer with Spray Forming Head
The ultrasonic transducer operates at a fixed frequency and
produces vibrations with maximum amplitude at the tip of
the spray forming head. The transducer converts electrical
energy to mechanical energy at the operating frequency of the
spray head. The body of the spray forming head is shaped to
concentrate the ultrasonic vibrations at the tip.
Ultrasonic Generator
The ultrasonic generator provides the electrical energy to the
ultrasonic transducer. The amplitude of this sinusoidal voltage
is adjustable so that the amplitude of the vibrating tip can
be optimized for the liquid being sprayed. A microprocessor
monitors these dynamic conditions and adjusts the generator to
maintain optimum transducer operation.
Fluid Applicator
The fluid applicator delivers liquid to the atomizing tip
and directs airflow to shape and add momentum to the
ultrasonically produced spray. The fluid applicator is comprised
of a liquid applicator and an air detector. In this case the
liquid and air delivery components are integrated into a single
applicator called the Integrated Liquid Deliver System (ILDS).
The liquid applicator supplies liquid to the atomizing tip in an
even flow to match the width of the spray forming head. The
output surface of the liquid applicator is positioned adjacent to
the spray-forming tip so that the liquid flows easily onto the
atomizing tip. At that point the liquid forms a film over the tip
area and is dispersed into micro drops by the ultrasonic energy.
The ultrasonic energy propels the spray from the atomizing tip.
The air director is used to shape and accelerate the ultrasonically
produced spray. The air director can be configured either to
focus or expand the spray pattern width to spray in a narrow
mode or wide mode.
Continued on p3
Photos:UltrasonicSystems,Inc.
3. GLOBALLY SPEAKING
RASTAL Produces
10-millionth
Drinking Glass
with UV Ink
F
usion UV supported hands-on seminars hosted by Cytec
Industries Inc. as part of their new UV PSA product
launch. Cytec Industries Inc. launched their new GELVA
Multipolymer Radiation (GMR) 8020-02 UV-curable PSA in
Europe in April following their USA launch in December.
This new UV PSA is designed to meet the industry’s growing
need for a UV-curable PSA with exceptional adhesive
characteristics to both low and high-energy surfaces. Targeted
usage for this 100% solids UV-curable PSA includes high
performance industrial tapes, automotive instrument panel and
membrane switch assemblies, nameplates, low and high surface
energy materials and foam tapes. Cytec’s goal in creating this
low VOC formulation is to enable tape manufacturers to be
competitive in markets where solvent-based PSA products are
not practical.
Unlike existing UV products, GMR 8020-02 offers an
excellent peel - shear balance in comparison to other adhesive
technologies. It’s designed to require less energy consumption
during the curing process, and provides a wide cure window
to enhance product application for thick depositions, even on
high-speed lines. Cytec’s VP of Pressure Sensitive Adhesives
and Specialty Additives, Michael Radossich, indicates GMR
8020-02 is the first of many 100% solid UV-curable ultra-high
performance PSAs. “GMR 8020-02 represents the culmination
of a comprehensive internal development effort. We believe
it’s just the product the European market has been hoping for.
That’s why we are planning to expand this technology stream
to cover an even wider application spectrum,” Radossich
explains.
The European launch event was held at Polytype Converting
in Fribourg, Switzerland. Dawn Skinner, Fusion UV’s Process
Development Manager, Europe, spoke during the day-long
seminar which also included presentations on the pressure
sensitive adhesive market, economics of UV PSAs, industrial
applications, and an environmental, health and safety
overview. Then participants watched live coating and curing
demonstrations followed by lab testing of samples. The
Polytype line has two rows, each with four Fusion UV VPS/I600
curing systems.
Fusion UV also
supported the
USA launch
event held at
Chemsultants
International’s
facility in Mentor,
OH. Fusion
UV worked
with Cytec
and Chemsultants to install three rows, each with two F600S
curing systems to cure the new hot melt adhesive during live
demonstrations. Chemsultants International’s ChemInstruments
division manufactures a full line of PSA testing equipment. This
enabled participants to test the cured samples onsite.
For more information about Cytec’s new UV-curable PSA,
including a video from the USA seminar and trials, visit http://
cytec.com/specialty-chemicals/psa-uv-curable.htm.
Fusion UV Supports
Cytec’s UV PSA Launch
in Europe
The Officers and the Award Committee of
the Division of Polymeric Materials: Science
and Engineering (PMSE) of the American
Chemical Society have announced that Dr.
Christian Decker, Director of Research at the
National Center for Scientific Research (CNRS)
in Strasbourg, France will receive the Roy W.
Tess Award in Coatings for 2009. Dr. Decker is
recognized as one of the world’s leading experts
Dr. Decker to Receive
Prestigious Award from
American Chemical
Society
By Petra Burger,
Fusion UV Systems GmbH
L
ike many other
industries, the glass
printing industry
also takes advantage of UV
curing. Glass decorators
admire the UV technology
because it offers advantages
in color scheme as well
as production efficiencies
compared to conventional
ceramic inks. UV-curable
screen-printing inks offer
a wide spectrum of colors,
are environmentally friendly
since they do not contain any
heavy metals, and require
less energy and floor space
compared to heat-curable
ceramic inks.
RASTAL GmbH & Co. KG
uses these advantages and
presented the production of
the “10-millionth UV-Glass“
at GlassTec 2008 and BRAU
Beviale 2008. The UV-curable
screen-printing inks Ultraglass
UVGO® and UVGL® from
Marabu GmbH & Co. KG are
printed on drinking glasses
with a fully automated,
6-color screen-printing line
from Kammann GmbH &
Co. KG. The Light Hammer®
10 UV curing system from
Fusion UV Systems cures
each color directly after the
printing station. The UV
lamp has a maximum power
input of 240 W/cm with
a variable power supply.
Thanks to the elliptical
reflector incorporated into
the irradiator, the UV energy
is focused to extreme high
peak irradiance onto the inks.
This peak irradiance provides
efficient curing of pigmented
systems or thick layers.
The interaction of ink
chemistry and UV lamp
assures the excellent UV ink
properties of 500 washing
cycles in a household
in the area of radiation-induced
reactions in polymeric materials.
His main research interests
are in ultrafast light-induced
polymerizations, the synthesis
and characterization of UV-cured
coatings and nanocomposite
materials, photostabilization
of polymers, and laser-assisted
chemical processing of polymers.
He has contributed over 300
publications, patents and book
chapters to the coatings and
scientific literature as well as
given more than 300 lectures
at scientific meetings. Dr.
Decker will receive the award
on August 17, 2009 during the
238th National Meeting of the
American Chemical Society in
Washington, D.C. The purpose of the annual
award is to encourage interest and progress in
coatings science technology and engineering
and to recognize significant contributions to the
field. Fusion UV congratulates Dr. Decker and
his significant contributions to the UV industry.
Photos:CytecIndustries,Inc.
4. UV IN THE NEWS
Tech Notes
We know these are
challenging times,
so here’s something you
can do to reduce costs
without sacrificing quality or
production schedules. Fusion
UV now offers Preventive
Maintenance Kits to provide
you with all of the spare parts
to properly maintain your
Fusion UV lamp units and
deliver significant savings.
Two kits are available:
• “Basic” - consists of a
Bulb, Reflector and an RF
Screen and is intended for
replacement of the main
lamp cavity components.
• “Deluxe” - consists of a
Bulb, Reflector, RF Screen,
Magnetrons, Photocell
and Pressure Switch and
is intended for those who
want to completely rebuild
the lamp unit.
These Preventive Maintenance
Kits are priced 10% below the
price of the individual parts!
You can save an additional
2.5% on this order and all
future parts by placing your
order via Fusion UV’s Web
Store.
Contact Sales Support at
301-527-2660 x8600,
sales_support@fusionuv.com
for more details and to register
for the Web Store.
Master Bond recently introduced a clear UV-curable
epoxy for bonding and potting optical components.
Master Bond EP29LP is a multi-purpose, two-part optical
epoxy featuring qualities essential for large casting and potting
applications. It has an unusually low viscosity of 700-800 cps
and an exceptionally low exotherm to a peak of 49°C. This
clear adhesive adheres well to optical fibers, optical connectors,
lenses and glass and forms high strength bonds of more than
3500 psi in shear. It exhibits good optical transmission that is
superb for potting and bonding optical devices. The adhesive
has a temperature range of 50°C to 120°C. Other noteworthy
features include good electrical insulating properties and
for an encapsulant used in electro-optics, adequate thermal
conductivity. It has a good chemical resistance to water, fuels,
acids, bases and salts. Learn more about Master Bond’s optical
adhesives at http://www.masterbond.com/lp/tabs/tp_ind_
optical.html
Save 10% or More with
Fusion UV Parts Kits
UV Cure Clear Adhesive
Makes Casting Bonding
of Optical Devices Easy
Fusion UV’s Light Hammer® 10 UV lamp on the screen-
printing machine K13-G from Kammann GmbH Co. KG
can be applied as thin as 1
micron or less and greater
than 50 microns. The pattern
width is programmable
from 5 mm up to 150 mm,
depending on the specific
coating material and spray
head selected. If desired,
only selected areas of the
substrate can be coated or
an entire substrate up to 460
mm x 400 mm. The system
requires very little floor space,
only 1 m x 1.3 m.
Modular Design
The Ultra-Cure System
utilizes a modular design to
deliver consistent UV curing
of various width substrates
Continued from p1
dishwasher and scratch
resistance of 7-9 N/m (with
Erichsen). The UVGL screen-
printing ink achieves these
brilliant properties only
through UV-curing. No post
curing is needed.
The process
• is energy efficient and
environmentally friendly.
• maintains the stability of
the glass as the process
does not require high heat
curing temperatures of
600°C.
• does not use any heavy
metals like lead or
cadmium.
• enables new design
possibilities thanks to the
4-colour halftone printing
in CMYK and the use of
gold and silver imitations
and effect colors.
RASTAL GmbH Co. KG
has delivered many customer
projects with this new
technology. Stefan Sahm-
Rastal, Managing Director
at RASTAL, described his
impressions during GlassTec
2008 and BRAU Beviale
2008: “Exact color printing
up to photo realistic images
– with pinpoint accuracy
in the desired color, and
environmentally friendly – the
visitors were enthusiastic.”
”Anyhow it was not easy
to change from ceramic
inks to UV-curable
systems,” commented
Wolfgang Heinz, Head of
Production at RASTAL in
Höhr-Grenzhausen, looking
back with pleasure on the
two years of development
for the new machines. “Of
course, then, as the inks and
hardening [curing] technique
were put to the test, the
production lines which could
process the appropriate
glasses in series had to be
first constructed. In doing
so, before we were ready to
up to 18” (457 mm). It can
accommodate up to three 6”
(152 mm) Fusion UV Systems
F300 SQ lamps. The lamps
can use different bulbs to
deliver the best wavelength
for the coating being cured.
They can also start and restart
rapidly for intermittent curing
applications without the need
for a shutter mechanism. The
module uses a PLC based
control system with an
operator interface terminal
(OIT) for setup and alerting.
Flexibility in a
Small Space
When integrated into a
complete coating and
curing system, the Prism
and Ultra-Cure can run
up to 4.0 m/minute and a
single control panel provides
easy operation. The Ultra
Cure UV Module uses a
PLC based control system
with an operator interface
for setup and alerting. The
conveyor system utilizes an
edge carrying stainless steel
pin chain with hand-crank
width adjustment and is fully
SMEMA compatible. And the
system set-up is very flexible
for manufacturers who run
a variety of substrates and
coatings or who want to
expand as the need arises.
The combined system only
requires about 4.2 m2 of
floor space, much less space
than the typical “spray
booths” that are used when
manually applying conformal
coatings. Additionally, the
time intensive and costly
process of manually masking
and demasking circuit
boards is eliminated with
an automated machine that
offers true precision selective
coating technology.
For more information visit
www.ultraspray.com.
Photos: RASTAL GmbH Co. KG.
CAT ILDS Head coating a
150mm wafer.
start production, we needed
a large number of test runs
before the thickness of the
color film, the hardness
[curing] parameters, the
right fabric etcetera were
coordinated and transferred
from laboratory conditions
to production. But now we
are more than satisfied with
the quality of the results. We
are flexible in production and
the results are also impressive
due to their quality!”
Fusion UV Systems plays
an important role in the
process partnership as a
UV lamp supplier. Within
our worldwide process
development group we
support our customers
from chemistry suppliers
to machine builders to end
customers with process
development in the lab to
production line trials and
extensive training courses.