Page 81 - Glass-Technology International no. 4-2019

CUGHER DRYERS: THE “WINNING

CHOICE” FOR SILK SCREEN

AND DIGITAL PRINTING

Dryers with all the features and the flexibility for

silk screen printing or digital printing on glass, are PEEDING UP THE

what today’s glass processors need and are what S DRYING PROCESS
In every printing process
Cugher presents to our readers in this article. there is the need to dry the paint
and anchor it onto the printed sur-
face as soon as possible. The rea-
son for this is to enable the printed
surface to be handled without
damaging the printed image, and,
moreover, to avoid the contamina-
tion of the ink/enamel due to dust
in the production area.
Two main goals must be achieved
to speed-up the drying process:
the first is to transfer energy to
the ink/enamel, and the second is
to evacuate the vapours generated
by the solvents during the curing
process.
According to ink specifications,
hot air, infrared radiation or UV
radiation are the most known and
widely available technologies to
transfer the energy required for the
curing process.
To evacuate vapours, on the con-
trary, the only way is to have air
flowing on the printed surface and
Digital an efficient exhaust system. This
also removes the vapours from the
Ready printed surface, accelerating the
drying process.
In the glass industry infrared cur-
able inks are the preferred in terms
of quality and stability.

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