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| Fluoropolymers
and Waxes for Lithographic Inks |
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Background photo shows
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Enhancing
the Performance
of Lithographic
Inks
At Shamrock,
enhancing ink with the right balance of performance
properties is more than just a science; it’s an
art. Each ink must be stable, printable, curable and deliver
good adhesion, anti-blocking, slip, anti-mar and rub
resistance. Our micronized powders, compounds and dispersions
(shown above) enhance these properties while improving
the overall formulation for optimum performance.
To complement
science and art, Shamrock offers a complete
line of micronized
synthetic and natural waxes,
including polytetrafluoroethylene (PTFE), polyethylene
(PE), polypropylene (PP), modified polyethylenes, modified
amides, carnauba wax and other natural
waxes. In addition, our industry-seasoned specialists
support your applications and work with you to
find the right solution. We will tailor our products to
your specific application needs.
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Discover
the Shamrock Advantage
Our
additives enhance all types of paste inks. Discover
the many features and benefits of Shamrock additives:
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High
slip
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Non-skid
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Rub
resistance
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Abrasion
resistance
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Anti-blocking
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Gloss
control
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pH
control
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Water
pick-up control
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Bleed
control
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Rheology
control
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Overprintability
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Heat
resistance
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Anti-skinning
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Please
see Application Guide
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Pressure
Phase Theory
At Left: This
effect, shown from above, is
observable using an optical microscope.
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Micronized
Powders
SST™
Series PTFE
The SST
Series is Shamrock’s premier line of micronized
PTFE for exceptional slip and rub resistance. Each
powder in the series features a closely defined
mean particle size with a narrow, uniform particle
size distribution for enhanced manufacturing control
of your process and ultimate ink performance for
your customers. PTFE is insoluble in all solvents, even
at peak melting temperatures up to 600°F. Applications:
Heat-set,
sheet-fed, metal deco and UV lithographic
inks where slip is critical.
SST PTFE | Control
Sutherland Rub Panels@ 50 cycles, 4 lb. weight.
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Sutherland Rub Tester
S-Series™
Polyethylene
and Synthetic Waxes
These stir-in PE and synthetic waxes promote outstanding
rub resistance and
slip. They exhibit limited solubility
in solvents, thus avoiding recrystallization that
may cause grind or recoatability problems. Our exclusive
processing assures a narrow particle size distribution
consistently time after time. Applications:
Heat-set, sheet-fed
and UV lithographic inks where rub
resistance is key. Synthetic waxes are typically combined
with PTFE for high slip in heat-set lithographic inks.
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FluoroSLIP™
Series PTFE-Polyethylene
The
FluoroSLIP Series of stir-in PTFE-PE blends is custom
designed to deliver the ultimate in slip and rub resistance
for the full range of paste inks. We customize each
product for optimum performance by varying
the molecular weight of the PE component to best
suit the ink and drying mechanism. Therefore, the FluoroSLIP
blends provide just the right cost/performance balance
for your formulation. They are available in
powder form as the FluoroSLIP Series and also in the
vehicle of your choice as FluoroSPERSE dispersions. Applications:
All
paste inks.
Specialized
Products
SD™
Series
Super
dispersible polyethylenes for outstanding rub resistance
in offset lithographic inks. Applications:
Heat-set, sheet-fed
and UV lithographic inks where rub
resistance is critical.
Dispersions
and Compounds
FluoroSPERSE™
PTFE Dispersions
Shamrock
dispersions incorporate the same high quality PTFE
found in our premier SST Series micronized PTFE.
Therefore, the FluoroSPERSE line also provides exceptional
slip and rub resistance. The line is comprised of
stable, white or toned PTFE in a variety of heat-set
and sheet-fed vehicles, including viscoelastic hydrocarbon
varnishes, linseed oil, lithographic oil and soya
varnishes. These hardworking dispersions help to increase
efficiency in high volume, automated printing ink
manufacturing processes. Since they are pre-wetted, they
also boost effectiveness in flushed color lithographic inks.
FluoroSPERSE dispersions are available in paste or
pumpable form. Applications:
Ideal for lithographic
inks in which
flushed color is used.
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| Ink
Performance vs. S-Series™
Coefficient
of Friction Tester
Control panel on
left, clear
overprint with S-232 N1 on right.
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CeraSPERSE™
Wax Compounds
These
polyethylene compounds are the next generation of
Shamrock’s S-Series polyethylene powdered waxes.
They provide excellent slip and rub resistance at
addition levels of 5-8% based on formulation. Often, ink
manufacturers also will add 1-3% FluoroSPERSE PTFE
to further enhance the protective properties of the
film. Shamrock’s CeraSPERSE line is available in hydrocarbon
varnish, linseed oil, lithographic oil and soya
varnish. These compounds facilitate ease of addition
to offset ink during any stage of ink manufacturing. For
example, they may be added directly into the
mixing container with resultant savings in ink batch
weigh-up time as compared to powders. CeraSPERSE
compounds are available in paste or pumpable
forms. Applications: All
paste inks.
CeraSPERSE™
Intaglio Compounds
These
easy-to-use modified wax compounds are unique
mixtures of synthetic and natural waxes in aliphatic
ink oil. Applications: Security
offset printing.
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UltraGlide™
UV PTFE Dispersions
These
ultrafine PTFE dispersions in tripropyleneglycol diacrylate
monomer are ideal for applications in which high
slip is critical. They combine the unmatched stability and
uniformity of a predispersed additive, while retaining
excellent visual properties. UltraGlide UV PTFE dispersions
are easy to incorporate with no settling, foaming
or effects on viscosity. Applications:
High slip applications,
including clears and high gloss formulae.
EverGlide™
UV Wax Dispersions
These
superfine specialty dispersions of prewetted polyethylene
and natural waxes in tripropyleneglycol diacrylate`
provide added slip and clarity retention. EverGlide
dispersions deliver a small, uniform particle size
with remarkable slip, scuff resistance and gloss retention.
These stable, uniform dispersions are easily incorporated
into any formula. Being thoroughly wetted, they
provide a high degree of transparency in clear
formulae. Also, there is no caking or dusting compared
to powders. Applications: Ideally
suited for both
clear mattes and high gloss formulae.
For
more information, call our ink application
specialists
at 1-800-349-1822 (U.S. toll-free) or 973-242-2999, ext.
186.
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Problem
Solvers
Problem:
"My
production batch is too low in tack for my
customer."
Solution:
SR-79™
Tack Adjuster is a dry, micronized stir-in
soluble hydrocarbon resin designed to increase tack
in web offset and sheet-fed ink systems. It can be "cold
cut" into the batch and dissolves readily in all ink
vehicles
by a simple mixing operation. No special dispersion equipment
is required.
Problem:
"My
oxidizing offset ink forms a brittle skin in
the container and causes too many press wash-ups when
drying on the rollers."
Solution:
Shamrock’s
AntiSkin™ additives prevent skinning
in the container, as well as drying on the rollers. They
are available in powder form (S-111) or in a soya dispersion
(AntiSkin 11) for maximum "open time." For a
more moderate open time, choose AntiSkin 12.
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Problem:
"My
offset ink takes up too much water and becomes
emulsified on long runs."
Solution:
Choose
one of the Aquapel™ hydrophobic additives
to reduce water pickup in a lithographic ink without
appreciably reducing ink tack or body. Specifically,
Aquapel Two offers increased hydrophobicity at
lower viscosity versus Aquapel.
Problem:
"My
process reds have a tendency to scum and
bleed in acid fountain solutions."
Solution:
Micronized
Bufferette™ pH control additives are
designed to control pH drift, as well as prevent bleeding
and water logging on the offset press. They are
easy to incorporate and can be stirred into a finished ink
without milling. Choose from Bufferette 510 or 610 powders,
or Bufferette 310S dispersion.
Problem:
"My
resinous emulsion system becomes unstable
when I incorporate additional water."
Solution:
Add
Emulso 1:10 and you can incorporate as
much as 20% water into an oleo-resinous system. Use
Emulso 1:10 in the initial oil phase of the premix to
ensure total dispersion. Formulation is simple: add 1%
Emulso 1:10 for every 10% water desired in the ink formula.
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Shamrock Technologies, Inc.
117 Docks Corner Road, Dayton, NJ 08810-1531
Phone: (800) 349-1822 (732) 355-4500
Fax: (732) 355-1995
Email: marketing@shamrocktechnologies.com
Website: www.shamrocktechnologies.com
Shamrock Technologies is one of the world’s largest processors of micronized polytetrafluoroethylene (PTFE), as well as
a leading worldwide supplier of a broad line of micronized powders, dispersions, emulsions and compounds including
PTFE, polyethylene, polypropylene, fluoropolymers, custom wax alloys, natural waxes and specialty additives. The company
manufactures more than 250 products at its diversified plant in Newark, N.J., and its two state-of-the-art facilities
in Kentucky. European operations are in Tongeren, Belgium. World headquarters are in Dayton, N.J.
The information contained in this technical data sheet is, to the best of our knowledge, true and
accurate. However, no warranty is expressed or implied regarding the accuracy of the data, the
results to be obtained from the use thereof, or that any such use will not infringe any patent.
5/01 3M
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©
2002 Shamrock Technologies, Inc.
Important Legal Information
Shamrock Technologies, Inc.
Foot
of Pacific Street, Newark, New Jersey 07114
Phone: (800) 349-1822 or (973) 242-2999 Fax: (973) 242-8074
e-mail:
marketing@shamrocktechnologies.com
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