Masking film
OwnerAlbert C. Songinventor
Life of this patent
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Abstract
The present invention relates to an improved system for processing continuous multi-carboned paper stock material in which a plastic overlay material is used to prevent unwanted printings on a face of the material being printed. The overlay material comprises an endless loop of material having sprocket holes along two edges and a plurality of print impression holes. The print impression holes are spaced apart by a distance substantially equal to the pitch of the stock material. The overlay material is advanced together with the stock material during printing.
Claims14
A masking film overlay for preventing unwanted printings on a face of multi-carboned paper stock material having a desired pitch which comprises:
- a substantially planar piece of material suitable for placement over said face;
- and
- said material being formed as an endless belt of material and having a plurality of sprocket holes along two opposed edges for enabling it to be advanced with the stock material being printed.
A system for printing multi-carboned stock material which comprises:
- a printer having means for printing a desired set of indicia on said stock material;
- an endless masking film overlay intermediate a portion of said printing means and a face of said stock material being printed for preventing printing on selected portions of said face, said stock material having a predetermined pitch;
- and
- sprocket means for simultaneously advancing said masking film overlay and said stock material.
Dependencies are inferred from the claim text.