Chaff Content
385
Cut-To-Tie Ratio
A common cut-to-tie ratio for bond forms is 4:1 (that is, 80% cut to 20% ties).
This value is dictated chiefly by the application program that the form runs
under. Lower cut-to-tie ratios will yield better form handling, but stacking may
suffer due to increased stiffness of the perforations. Some level of
experimentation is required to determine the best cut-to-tie ratio. But
remember that a cut-to-tie ratio that causes a thickness buildup greater than
0.025 inch (0.635 mm) or that creates an evenness variation greater than
0.003 inch (0.0762 mm) will result in an unreliable and unpredictable form.
Perforation Intersections
Whenever a horizontal line of perforations intersects with a vertical line of
perforations, the point of intersection must be a tie point. Cut points at such
intersections make the form unacceptable.
Chaff Content
Tractors holes should be clear of chaff. As much as possible, there should not
be loose chaff in the box in which the paper is packed.
Preferred Unacceptable
Cut Point
Tie Point
Cut Point
Tie Point
Direction of
Forms
Movement
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