Patent ID: 9737440
Date: 2017-08-22
CPC Classifications: A61F,B41J,B41M,B42D,G06T,Y10T

Claim:
1. A system for digitally printing a set of napkins in a single run, the system comprising: a database or files containing a set of data to be printed on a set of napkins in the single run, wherein the set of data comprises variable data to be printed on a napkin or napkins within the set of napkins in the single run; napkin stock comprising a plurality of discrete folded napkins, wherein the folded napkins include at least two adjacent ply; at least one digital printing engine adapted to print the napkin stock with a liquid ink at a printed resolution in a range from about 300 to about 3600 dots per inch, wherein the at least one digital printing unit is plateless or dieless; an optical sensor operably coupled to the at least one digital printing engine, the optical sensor being configured to detect when the napkin stock is positioned under one or more print heads of the at least one digital printing engine; and a transport device configured to transport the napkin stock to and from the at least one digital printing engine; wherein at least one of the individual napkins in the set of napkins printed in a single run contains printing different from printing on other individual napkins in the set of napkins printed in the single run, and wherein the liquid ink is configured to not significantly permeate the first ply of each discrete napkin to reduce bleeding of the liquid ink before drying, and wherein the second ply of each of the plurality of discrete folded napkins is substantially free of the liquid ink.