Home' FLEXO Magazine : April 2017 Contents APRIL 2017 | FLEXO 123
Once the proper blade has been chosen, a corresponding end seal
needs to be selected. An improper pairing, Dan explained, can result
in ink leak. “High quality, accurate and consistent end seals are critical
to minimize ink leaking, optimize blade life and smooth ink laydown,”
he noted. “Customization is key to meet specific customer require-
Post coffee break, Catherine Haynes, also from APR’s Technical Solu-
tions Group, gave a review of plate technologies new to the industry.
She began with an overview of offerings from MacDermid Graphics
Solutions and Dantex before recommending a series of best practices
for quality control in the plate making process. Two and three dimen-
sional analysis, Catherine explained, enable the capture of fine details
like dot percentages and plate wear.
Next, Esko’s Larry Moore asked two questions of the audience: Who
is a converter (a majority of the crowd) and who makes money from
premedia services (nobody in the crowd). He then gave a look at his
company’s products and services offerings designed to turn prepress
into a revenue source.
Larry’s coworker Julian Fernandez demonstrated a workflow handled
by Esko’s Device Manager for CDI and Automation Engine and
finished with a look at expanded gamut (EG) printing, highlighting its
effects on cost (reducing the use of spot colors and less time spent on
makeready), quality (enhancing CMYK images to seven colors) and
matching digital and flexo (“most digital presses have a wider gamut
than flexo presses”).
Catherine Haynes returned to the microphone to “demystify” G7 and
EG. She distributed several print samples to use as visual examples of
4-color and EG print. While attendees studied the samples, Catherine
examined some of the myths associated with G7 and EG:
• “G7 is a form of color management”: G7 does have an impact on
color appearance, but is really a calibration process
• “G7 only applies to ISO targeted inks”: G7 qualification has three
levels (grayscale, targeted and colorspace)
• “G7 is the same as GRACoL 7”: G7 is a methodology, while
GRACoL is a specification or guideline; both reference ISO
• “With EG, I can hit 100 percent of the Pantone library”: EG’s
gamut capacity is dependent on inputs and process control; a
realistic expectation is 80 percent
• “Investing in the proper inks, anilox and press will allow me to
print EG”: “You can’t just buy the ingredients for a cake, throw
them in a bowl and expect a cake to come out,” Catherine said.
Optimization and process control are the keys, but EG is a joint
endeavor for the pressroom, prepress supplier, plate maker and
• “EG means I will be building spot colors from seven process col-
ors”: Tools for EG allow a production artist to specify separation
protocols to optimize color builds
Following Catherine’s presentation, Richard Black noted that EG
printers can match 100 percent of a Pantone library—the recently
released Pantone 7-color process color book.
After lunch, Colordyne’s Taylor Buckthorpe hit digital printing head
on. He gave an overview of his company’s standalone digital presses,
which use water based inks. On the topic of substrates, Taylor said it’s
not a limit of substrates, nor is it a limit of coating technologies, it’s
finding choices that match what a printer needs. For flexo printers,
Colordyne’s 3600 Series Retrofit was cited as an option to add on to
existing equipment. The machine can achieve 1,600 dpi by 1,375 dpi.
Examining consumable vs. durable print heads—Colordyne’s heads
are consumable—Taylor noted the more frequent replacement still
yields a lower cost over a two to three year period, due to durable
print head costs being markedly higher. Consumers, Taylor reported,
have seen success using his company’s machines on existing business
of less than 5,000-ft. and those with high versioning or multiple SKUs.
The end result is opening a printer up to take on more business and
be more productive. “It’s all about putting the right piece of work on
the most efficient piece of equipment,” he noted.
The final presentation of the day came from APR’s Tim Reece, who
sought to introduce to attendees a new means to cleaning anilox rolls.
He began with a look at existing cleaning methods and noted they
leave things (resins) behind in the “clean” cells. Laser technology, Tim
said, is either what everyone will be using or wanting to be using in
the future. Highlighting the technology’s features, he said it does not
use caustic chemicals, is easy to set up and train staff to use, has no
waste, can clean any chemistry and has no lpi limitation.
The remainder of the event featured demonstrations of the Bobst
M5 press, along with machinery and equipment from many of the
presenters, held in various labs within APR’s facility. n
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