Pressure sensitive cohesive patterns for Z fold and C fold business forms
DCFirst Claim
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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Abstract
In the production of mailer type business forms, particularly from a web in a roll configuration having a plurality of business form intermediates, with pressure sensitive cohesive, the problem of cohesive blocking (sticking together) at inopportune times is avoided by spacing substantially linear patterns of the cohesive disposed in the detachable side edges of the intermediates so that when the intermediates are in the roll configuration the cohesive from one intermediate does not engage the cohesive from another. Preferably the cohesive patterns on one face of the intermediate are spaced from the parallel cohesive patterns on the second face of the intermediate by about 1-15 mm, preferably about one centimeter. Transversely extending patterns of cohesive also may be positioned so that they too do not engage in the roll configuration, even though engagement of the transverse patterns is much less of a problem because the potential areas for engagement are few when the intermediates are in the roll configuration.
31 Citations
16 Claims
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1. A mailer type business form intermediate comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A web of a plurality of mailer type business form intermediates comprising:
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a 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 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; 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, 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; a plurality of fold lines disposed in said web extending substantially perpendicular to said first and second side edges; wherein said web is in roll configuration defining a plurality of intermediates with said first and second faces of different portions of said web in contact with each other while said first and second edges of said web are in alignment, said first and second patterns of cohesive not engaging, respectively, said third and fourth patterns of cohesive; and a plurality of transversely extending substantially linear patterns of pressure sensitive cohesive disposed adjacent and substantially parallel to at least some of said fold lines. - View Dependent Claims (16)
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Specification