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Thread: Finding Distortion factor for coating blankets

  1. #11
    mazengh is offline Senior Member
    Join Date
    Apr 2009
    Posts
    303

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    Quote Originally Posted by rich apollo View Post
    Mylar backed blankets won't necessarily eliminate the distortion. The value you're looking for is what percentage the coating blanket increases the circumference of the coating cylinder. Maybe something as simple as:

    a = length of the blanket
    b = blanket thickness
    C = circumference of cylinder with blanket
    D = diameter of the cylinder
    D2 = diameter of the cylinder and blanket

    a ÷ pi = D

    D + (2b) = D2

    D2 x pi = C

    a ÷ C = distortion factor
    how would this formula work for a cyrel flexo plate? would the length of the blanket include the bars which means the plate length includes the area that goes under the clamps? also for the b variable, do you add the mylar thickness, that goes under the flexo plate, to the plate thickness? and finally the diameter of the cylinder can't be considered as a true diameter since the plate doesn't extend from one end all the way to the other like in flexo, as in offset you have the clamps... can someone please explain how this is done?

  2. #12
    Join Date
    Jan 2011
    Location
    Canada
    Posts
    34

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    Hi,

    Check out this article posted by Folex, it helped me understand the process. The information regarding distortion is on page 19.
    hope this helps!

    http://www.folex.com/data/docs/downl...lacomp-EN-.pdf

    Anthony


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