Pressure sensitive cohesive patterns for Z fold and C fold business forms

  • US 5,950,909 A
  • Filed: 01/12/1998
  • Issued: 09/14/1999
  • Est. Priority Date: 01/12/1998
  • Status: Expired due to Term
First Claim
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1. A mailer type business form intermediate comprising:

  • a sheet or web of paper having first and second faces, and first and second substantially parallel side edges;

    first and second lines of weakness formed in said web or sheet adjacent and substantially parallel to said first and second side edges, respectively to define first and second edge strips, said edge strips each having a width X, in the dimension transverse to said first and second edges;

    first and second substantially linear patterns of pressure sensitive cohesive disposed on said first face in said first and second strips, respectively, adjacent said first and second lines of weakness, respectively, and substantially parallel to said first and second lines of weakness, each of said first and second substantially linear patterns having a width Y which is less than X, and substantially no pressure sensitive cohesive in said first face in said first and second strips is adjacent said first and second side edges;

    third and fourth substantially linear patterns of pressure sensitive cohesive disposed on said second face in said first and second strips, respectively, adjacent said first and second edges, respectively, and substantially parallel to said first and second edges, and substantially no pressure sensitive cohesive in said second face in said first and second strips is adjacent said first and second lines of weakness;

    each of said third and fourth substantially linear patterns having a width Z which is less than X, and wherein Y plus Z is less than X, so that said first and second patterns of cohesive do not overlap, respectively, said third and fourth patterns of adhesive, and so that substantially no cohesive in said first and second strips on said first face overlaps cohesive in said strips on said second face in said transverse direction; and

    a plurality of fold lines disposed in said web or sheet extending substantially perpendicular to said first and second side edges.

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