| 摘要 |
<p>An apparatus for printing a variable pattern on a substrate, a method using the apparatus, a product produced by using the apparatus are disclosed. The apparatus includes an ink bath containing a printing agent to be applied to the substrate, a roller that picks up ink from the ink bath, a doctor blade to wipe of excess printing agent on the roller, and a means for intentionally varying the design printed on the substrate from the roller.</p> |
