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SYSTEM AND METHOD FOR CONTROLLING CURL IN MULTI-LAYER WEBS

  • US 20080081164A1
  • Filed: 09/26/2007
  • Published: 04/03/2008
  • Est. Priority Date: 09/28/2006
  • Status: Active Grant
First Claim
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1. A method for reducing strain-induced curl in a multi-layer web, the method comprising:

  • providing a coated web, the coated web including a coating applied to a web of indeterminate length, the coating being characterized by at least partially shrinking when cured;

    curing the coating to form a multi-layer web, the multi-layer web including a strain induced by curing the coating; and

    stretching the web during curing of the coating, wherein stretching the web substantially cancels the strain induced by curing such that the resulting multi-layer web is substantially flat.

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