Drylam PRO-LAM PL1200-HP - Manual (Page 49)

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E. Use the mandrel tension to cancel film curl. If the film is curling down loosen the bottom
mandrel knob and vice versa, If this cannot be reduced by loosening the mandrel knob it may
be counter-acted by tightening the mandrel knob that is opposite of the curl (in this scenario
the top idler).
3. Temperature.
A. Temperature settings are an issue of experience and can affect a wide variety of issues.
B. Too high of a temperature can cause problems such as blistering, delamination, over
heating of the material, insufficient cooling or distortion of the film.
C. Too low of a temperature may result in unsuccessful lamination, future delamination
fogginess in the film or insufficient adhesion
D. Do not confuse some of these issues with bad film or film that is incompatible with the
adhesive or paper
4. Roller pressure.
A. Use sufficient pressure to encourage heat transfer and adhesion.
B. Do not use more pressure than is necessary.
C. Increased rear roller pressure increases stretch.
D. Increase front roller pressure decreases stretch.
5. Speed.
A. Speed setting is somewhat relative to temperature; faster roller speed results in a cooler
lamination, slower roller speed results in more temperature saturation into the film and
paper.
B. Keep in mind when setting the speed that the fans must cool the lamination down to the
point of the lamination adhesive being set – before the lamination exits the rear rollers.
C. For production, higher speed lamination it may be possible to increase the speed slightly
after the rollers get “heat saturated” keep in mind that you must not increase the
temperature 20 degrees over the manufactures recommendation. Never run the machine
over 300 degrees.
Do not pull or twist on the film as it exits the rear rollers, as this will adversely affect the film even to
create problems in the film on the front rollers. And resulting in a poor lamination.