Drylam PRO-LAM PL1200-HP - Manual (Page 51)

51
Laminator Operation
Fans / Cooling
This switch activates the cooling fans. These fans control the temperature of the film as it exits the heat
rollers. Their use depends on numerous variables so experimentation and experience is about the only way
you can determine their necessity.
Do not use the fans to assist in cooling the laminator during shutdown. Follow the standard
shutdown procedure
In general, these fans should be used for:
Thicker films (relative to the lamination speed) unless running very slowly
Thin films (1.2-1.8 mil.) during medium to high-speed operation
During slitters use the fans may reduce an adhesive build-up on the slitter blades.
If the film leaves the rear of the machine at an excessive temperature:
1. The film may show a rougher surface finish,
2. The film may show marks from the rear roller that are at right angles to the film path
3. The film may hold the shape it finally cools at outside the laminator.
4. Excessive heat may also cause stretch marks the length of the film or around the edges of the
paper.
Excessive cooling may cause
A. Downward curl
B. Foggy areas in the film
C. Unusual stretch marks.
!!!THE FAN SWITCH MUST REMAIN IN THE OFF POSITION WHEN THE ROLLERS ARE
STATIONARY!!!