Page 83 - Glass-Technology International no. 4-2019

Dryers are able to accurately dry ink thickness from 15
to 100 microns, adapting the air recirculation

DRYER WITH 2 HOT AND 1 COLD MODULES

tion fan, adding energy to an important feature, be- cesses, and viscosity is quite together with the set-point
the curing process. Cugher cause the speed of the air high, it is possible to have in the dryer recipes. Moreo-
IR dryers actually combine needs to be adjusted ac- an important amount of ver, each single fan can be
hot air and IR effect. cording to the characteris- air. On the contrary, if the adjusted independently with
As an option, heating ele- tics of the ink. thickness of the wet surface regards to speed, creating a
ments can be installed to is in the range of 60-100 speed table where the fans
heat the air, enabling to SETTING microns, such as in ink jet are running low where the
switch off the IR effect and THE SPEED OF THE printing, and the viscosity paint is totally wet (first
use the Cugher dryer as a RECIRCULATION FANS is quite low, it is necessary module), and are running
simple hot air unit. If the thickness of the wet to reduce the amount of air. fast where the paint has al-
All the recirculation fans surface is in the range of According to these require- ready started drying and the
of Cugher dryers are con- 20-30 microns, such as in ments, the speed of the re- wet film is already stable. Of
trolled by inverter. This is silk screen printing pro- circulation fans can be set course, the temperature can

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