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Drying Time (Average) |
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| It takes time for ink to set on YUPO® and consequently drying will take longer than with coated
paper. Average drying times for single-sided printing
will vary according to pattern, printing conditions,
climate and a variety of other factors, however the
following is a list of approximate drying times. |
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FEB |
FGS |
FRB |
FRR |
| Printing surface |
Double-sided |
Double-sided |
Single-sided |
Single-sided |
| Ink used |
Synthetic Paper Ink |
Ink for YUPO®
UV Ink |
Standard Ink |
Standard Ink
(Color Weight 200%) |
Ink for YUPO®
UV Ink |
Synthetic Paper Ink
Ink for YUPO®
UV Ink |
Synthetic Paper Ink
Ink for YUPO®
UV Ink |
Drying time
(Using ink for YUPO®) |
100% |
1-2 hours |
4-6 hours |
1-2 hours |
1-2 hours |
| 200% |
2-3 hours |
5-8 hours |
1-3 hours |
2-3 hours |
| 300% |
3-5 hours |
8-12 hours |
2-4 hours |
3-5 hours |
| 400% |
5-7 hours |
10-16 hours |
3-5 hours |
5-7 hours |
| Finish |
Front |
Semi-gloss |
Matte |
Semi-gloss |
Semi-gloss |
| Back |
Semi-gloss |
Matte |
Matte |
Matte |
| In order to maintain the above-listed drying times,
use fresh inks, do not allow ink to over-emulsify, and
strictly follow the instructions about the dampening
water. If the ink has still not set 24 hours after printing,
it is likely that the ink has over-emulsified. |
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- The above average times are for relatively balanced
designs in situations where no problems such as
over-emulsification of ink have occurred.
- There is not a large difference in drying times
for single-color printing and multi-color printing
drying times for YUPO®, so a multi-color press
should be used whenever possible.
- If ink becomes over-emulsified, drying times
will be significantly longer than the above-listed
drying times, dependent upon the degree to which
the ink has over-emulsified.
- Low temperatures will cause longer drying times.
Drying times will be significantly longer at temperatures
less than 15°C.
- Drying times for the second printing surface
in double-sided printing will be significantly
longer than those listed above. They will vary
according to design and conditions, however the
gas created when the ink on the first surface
dries is for changing the quality of the rear
surface.
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The following items are effective for shortening ink drying times.
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(1) |
Dry printed materials in a high-temperature
(25-30°C) environment. |
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(2) |
Frequently ventilate the drying area after the
ink sets.
Carry out additional or rear-surface printing
after the surface temperature of the paper returned
as close as possible to the surface temperature
at the time of the first printing. This is in
order to avoid any registration errors. |
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