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Selecting a UV Ink |
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- When selecting a UV offset ink, consult with
individual ink manufacturers after studying what
ink properties are required for your paper application.
For outdoor applications especially, give careful
consideration of the need for a water-resistant
ink.
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Compatibility by Grade |
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- Refer to the table below for information about
major ink grades that can be used for oil-based/UV
offset printing.
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FEB |
FRB*2
FRR |
FGS |
FPG |
TPRA |
BLR |
CFG |
KPK |
KAS |
SGS*1 |
| Oil-based |
Ο |
Ο/× |
Ο |
Ο |
Ο |
Ο |
Ο |
× |
Ο |
Ο |
| UV |
Δ |
Δ/× |
Ο |
×*4 |
Ο |
Ο |
× |
× |
Ο |
Ο |
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GFG*2 |
VAFW |
WMF*2 |
WSF*2 |
WCFA |
WFP |
QJJ(E) |
RMM |
QLJ |
IML*3 |
| Oil-based |
Ο/Ο |
Ο |
Ο/Ο |
Ο/Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
(Δ)/× |
| UV |
×/× |
Δ |
Δ/× |
×/× |
Ο |
× |
Ο |
Ο |
×/Ο |
Ο/× |
| Ο: |
Compatible |
| Δ: |
Can be used under certain
printing conditions and for certain applications |
| ×: |
Incompatible |
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| *1: |
Indicates compatibility
with the printing surface (mat) of adhesive
paper |
| *2: |
Indicates compatibility with
the (front/back) |
| *3: |
IML refers to ITE105, IDS80,
100 and IHC75 |
| *4: |
OK after coating with suitable primer |
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- Please inquire about grades not specified on
the table above
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Important Notes about UV
Printing |
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- The combined use of mercury and metal
halide lamps as UV lamps is recommended.
- UV ink can easily undergo excessive emulsification.
Please restrict the amount of water used
in press dampening even more than you would
with oil-based offset printing.
- Standard UV lamps will cause stretching
in YUPO® due to the generation
of heat. Use a low-heat lamp (water-cooled
or infrared-filtered type) and ensure that
the temperature between stacked YUPO®
sheets does not exceed 50°C.
- Although ink adhesion strength may in
some cases appear insufficient immediately
following printing, it will improve with
the passage of time.
- Interdeck irradiation with anything other
than a low-temperature lamp is not recommended.
Use of a standard UV lamp may cause miss
registration due to heat or ink blanket
removal due to poor ink adhesion.
- When printing, complete the job by putting
the paper through a multi-color printing
press once only. This will help prevent
miss registration or measurement errors
caused by excessive heat.
- If repeated printing or two-sided printing
cannot be avoided, aerate for cooling as
soon as possible following the initial printing,
perform a blind printing, and perform additional
printings only after the paper has returned
to as close to its original temperature
as possible.
- The area around the UV lamp is prone to
becoming dry and generating static electricity.
To avoid problems:
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(1) |
Maintain humidity at over
50% in the delivery area |
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(2) |
Use of an air ionizer or other static
remover can be effective |
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