Home' FLEXO Magazine : October 2015 Contents I-95 Flexo Seminar Draws Large Crowd, Features Presentations
on Ink Density, Expanded Gamut
PHILADELPHIA, PA—Nearly 70 flexographers attended the inaugu-
ral I-95 Flexo Seminar Sept. 16 at FTA member Gallus’ Philadelphia,
PA location. Much like the road from which the group derives its
name, attendees came from all along the East Coast to hear presenta-
tions addressing solid ink coverage, digital printing’s complementary
nature to flexography and expanded gamut printing.
Sponsors of the event included:
• ACTEGA Coatings & Sealants
• FLXON Inc.
• Harper Corporation of America
FTA Hall of Fame member Mark Mazur—formerly of DuPont
Packaging Graphics and current self described “old retired guy”—be-
gan the day by discussing how to improve solid ink coverage. When
printers need to decide whether to use standard digital or flat top
dots, Mazur said there is no “one solution for everyone” and that the
question is best answered by looking at the market segment. However,
when it comes to plate surface, either an engineered surface or solid
screening is a big improvement over the standard variety.
He continued by running through different microcell patterns before
providing a simple explanation for ablation: Consider a door opening
and closing, with a flashlight trying to shine through it. If the door
opens and closes too quickly, Mazur noted, not enough light gets
through to form a full beam of light. Similarly, if the laser or energy
source isn’t given the power or time, the rotating drum will “smear”
the effect of the energy on the mask. To improve this, either the ener-
gy or pulse amplitude can be increased, or the “door” or pulse length
can be increased. He supported this by detailing the results of imaging
done with various combinations of pulse length and amplitude, show-
ing an optimal area where ink density improves.
Following Mazur, Gallus’ Product Director Harold Jacob spoke on
differentiating digital technologies. “You need to get into digital, if you
aren’t already,” Jacob implored. He then analyzed three technologies in
the digital world—dry toner, liquid toner and inkjet. After categoriz-
ing the first two techs as being quite mature, Jacob noted that inkjet,
despite being the youngest, has seen a high rate of development and is
now capable of 2-pl. size droplets
and 1,200 by 1,200 dpi resolution.
Continuing to discuss droplet
size, Jacob noted that smaller size
equates to better adhesion, better
curing power, less gloss and less ink
consumption, all wins for printers.
Wrapping up the day was another
FTA Hall of Famer, Esko Product
Specialist – Color Mark Samworth,
who talked about expanded gamut
for packaging. Providing a brief
history of color evolution in pack-
aging, Samworth said he believes
this decade will be remembered
for the rise in 7-color printing, re-
vealing it’s believed that by 2020, 50
percent of the market is projected
to be utilizing expanded gamut.
He cited two primary reasons
for its growth: quality and economics. Looking to quality, Samworth
compared the achievable color gamuts with 4- and 7-color printing,
passing around several printed samples that included the FLEXO
Magazine October 2014 cover project. On the subject of economics,
Samworth was blunt, saying the cost of spot colors is “unbelievably
expensive” and that running with a fixed ink set delivers increasing
makeready savings based on the number of jobs ganged.
Comexi Group Sells NEXUS SL2 Solventless Laminator
to Flexographic Packaging Co.
GIRONA, Spain—The Comexi Group will support Flexographic
Packaging Co. in improving its business and to expand its capabilities
by installing a Comexi NEXUS SL2 solventless laminator. The Wau-
pun, WI based company will be installing this machinery in its newly
expanded printing and laminating facility.
According to President David Puente and VP Erik Blankenberg, the
owners of Flexographic Packaging Co., “the Comexi NEXUS SL2
will be a great addition to our laminating department. The Comexi
solution will allow Flexographic Packaging Co. to increase its capacity,
which will allow us to exceed customers’ expectations.”
The Comexi NEXUS SL2 is
designed to work with solventless
adhesives, utilizing state of the art
technologies to provide maximum
reliability and easy handling. This
new model is the evolution of the
top selling Comexi NEXUS Evo
and is capable of laminating at a
maximum speed of 1,475 fpm with
an available width of 52-in. to 60-in.
Attendees examine a Gallus press
at the company’s Philadelphia, PA
MEMBERS & MANEUVERS
14 FLEXO | OCTOBER 2015
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