Formula For Cooling Adhesive Sheet

[giardap]

We extrude an adhesive laminate 250mm wide 0.6mm thick at 80 - 85C onto release paper at room temperature. We wish to cool the adhesive laminate down to 25C as quick as possible to enable us to adhere a PU film to the top of the laminate. Is it possible to work out using formaluas which of the following methods would be best to achieve this cooling : air knives? Cooling roll? cooling plate?

 

[IRstuff]

"As quickly as possible" is NOT a testable requirement. What do you really mean, nanoseconds? microseconds?

TTFN

FAQ731-376

 

[giardap]

Within 30secs

 

[IRstuff]

The cooling load would be on the order of 300 joules/inch, using:

specific heat = 0.33cal/gm-K (guessed)
density = 0.93 gm/cc (guessed)
thk = 0.6 mm
width = 250 mm
delta temp = 85ºC - 25ºC

all the above multiplied together

TTFN

FAQ731-376