Flexa CWT GALAXY, Use And Maintenance Manual

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7.11 “Soft” roller heating procedure
In the cold seasons or when processing low-quality materials, it is possible to heat the upper roller in order to eliminate or at
least limit problems linked to “silvering,” an effect strictly related to the quality of the adhesives used in the protective film and
to the roughness of the protective liner.
Silvering leads to slightly grey streaks on laminated prints, especially on dark colours.
Heating the protective film, and as a result also the adhesive, significantly reduces or entirely eliminates this occurrence.
The problem cannot be resolved by increasing the pressure between the rubber rollers, as this creates the formation of creases
on the print support.
During the summer seasons, the roller temperature is on average 25-35°C and therefore quick heating is not required.
Before activating quick heating of the rollers, make sure that there is no material being processing between the rollers and that
the protective liner recovery clutch is not excessive, to prevent that material on the unwinding shaft be rewound.
Perform the following operations to start processing after putting the machine into service:
Keep the upper roller and lower roller in contact using
the adjustment hand-wheel.
1.
Set roller speed between 3 and 5 via the
potentiometer (A).
2.
Press button (B) to activate roller rotation. 3.
Press button (C) to activate upper roller heating. 4.
Repeatedly press button (D) to select the
temperature.
5.
During operation, the rubber rollers must be in rotation and in contact with one another. A failure to comply with this
rule could cause the heated rubber rollers to become deformed.
GALAXY
USE AND MAINTENANCE MANUAL
EN
MANUAL CODE: 756100330_EN
REVISION: 0
DATE: 07/03/2019
FLEXA S.r.l. - Partial or whole reproduction prohibited without authorisation
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