The present invention is a method for measuring the varnish film thickness of a printed article by obtaining the film thickness of varnish on a sheet (1) on which a pattern is printed on a base thereof with ink and the pattern is coated with the varnish, wherein a metal foil (1c) having a smooth surface is attached to the base of the sheet (1), and the film thickness of the varnish coated directly over the metal foil (1c) is detected with a spectral interference-type film thickness meter (81) so as to determine whether the film thickness of the varnish is acceptable or not on the basis of the results detected by the spectral interference-type film thickness meter (81).

A substrate is printed with front side and back side markings in a first color ink. The front side when viewed with reflected light includes a first marking printed in a first saturation and a first symbol printed in the first saturation. The back side when viewed with reflected light includes: a second marking printed in a second saturation; a second symbol printed in the second saturation; a third marking printed in the first saturation; and a third symbol printed in the first saturation. The first marking, the second marking, and the third marking are printed to provide an interlocking pattern of low saturation color and high saturation color when viewed with transmitted light. The second symbol is visible, and the first symbol and the third symbol are visible and indistinguishable, when viewed with transmitted light.

A substrate is printed with front side and back side markings in a first color ink. The front side when viewed with reflected light includes a first marking printed in a first saturation and a first symbol printed in the first saturation. The back side when viewed with reflected light includes: a second marking printed in a second saturation; a second symbol printed in the second saturation; a third marking printed in the first saturation; and a third symbol printed in the first saturation. The first marking, the second marking, and the third marking are printed to provide an interlocking pattern of low saturation color and high saturation color when viewed with transmitted light. The second symbol is visible, and the first symbol and the third symbol are visible and indistinguishable, when viewed with transmitted light.

A redundantly printed security-enhanced document, printing method and system ensure the meaning of the information imparted by variable indicia printed by redundant printing on the document with removable scratch-off coatings. By printing the variable indicia with multiple colors, redundancy and integrity of the intended indicia is achieved. Additionally, inverted color indicia countermeasures to pinprick attacks are also disclosed. The redundantly printed document, methods and systems enhance the overall appearance of the redundantly printed document, and reduce possible consequences resulting from misprinted variable indicia. The resultant printed process color indicia maintains a grayscale equivalent level of a process color greater than or equal to the measured grayscale equivalent level of the substrate surface plus an additional contrast delta of 15%.

A redundantly printed security-enhanced document, printing method and system ensure the meaning of the information imparted by variable indicia printed by redundant printing on the document with removable scratch-off coatings. By printing the variable indicia with multiple colors, redundancy and integrity of the intended indicia is achieved. Additionally, inverted color indicia countermeasures to pinprick attacks are also disclosed. The redundantly printed document, methods and systems enhance the overall appearance of the redundantly printed document, and reduce possible consequences resulting from misprinted variable indicia. The resultant printed process color indicia maintains a grayscale equivalent level of a process color greater than or equal to the measured grayscale equivalent level of the substrate surface plus an additional contrast delta of 15%.

The present invention discloses a system and method for printing a registered image on a wet wipe. The system includes a printing apparatus having a plurality of ink reservoirs configured to print a plurality of graphics on a fabric. At least one optical sensor is configured to sense the plurality of graphics and one or more perforating components form a plurality of perforations along a length of the fabric. One or more cutting components configured to form a plurality of cuts along a length of the fabric. A packaging apparatus packages the printed material.

A method of producing a transparent polychromatic printed iridescent image (8) of any kind in which at least two colors change simultaneously when there is a change in the viewing angle of the image under illumination by at least one visible light source.

Functionality is disclosed herein for producing articles with multiple color inks. A method of decorating, printing, or otherwise producing articles with multiple color inks includes continuously refilling an ink reservoir with multiple color inks in a sequential manner, and continuously applying the multiple color inks from the ink reservoir onto articles of manufacture to create decorated articles of manufacture

Functionality is disclosed herein for producing articles with multiple color inks. A method of decorating, printing, or otherwise producing articles with multiple color inks includes continuously refilling an ink reservoir with multiple color inks in a sequential manner, and continuously applying the multiple color inks from the ink reservoir onto articles of manufacture to create decorated articles of manufacture

The present invention is directed towards an apparatus, a system and a method for creating a pixel canvas artwork. A pixel canvas art apparatus may contain a receiving layer that includes multiple segmented components, each of which may be enclosed by a fluid-resistant boundary. One or more water-based markings may be absorbed by the receiving layer at multiple segmented components and may be prevented from transferring throughout the receiving layer by the fluid-resistance boundaries. The one or more water-based markings may be absorbed at multiple segmented components in a manner that creates a pixel canvas artwork. Both a system for producing a pixel canvas artwork and a method for creating a pixel canvas artwork may include components similar to the pixel canvas art apparatus that may be used to create a pixel canvas artwork.