Abstract: 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 second symbol are not distinguishably visible, when viewed with transmitted light.

Abstract: A substrate is printed with front side and back side markings. The front side when viewed with reflected light includes: a first marking printed with a first gradient of two colors; a second marking printed with a second gradient of two colors; a first symbol printed with a third gradient of two colors; a second symbol printed with a fourth gradient of two colors; a third symbol printed with a fifth gradient of two colors; and a fourth symbol printed with a sixth gradient of two colors. The back side when viewed with reflected light includes: a third marking printed with the fourth gradient; a fourth marking printed with the third gradient; a fifth symbol printed with the second gradient; a sixth symbol printed with the first gradient; a seventh symbol printed with the sixth gradient; and an eighth symbol printed with the fifth gradient.

Abstract: Examples are directed toward anticounterfeit markings printed on a substrate. A method includes determining with a microprocessor running computer executable code non-transitorily stored on tangible computer readable media that: a first microprinting appears on a front side of the substrate as front side markings of first portions of a plurality of characters having dimensions in a micrometer range when viewed from the front side with reflected light, a second microprinting appears on a back side of the substrate as back side markings of second portions of the plurality of characters having dimensions in the micrometer range when viewed from the back side with reflected light, and the first microprinting and the second microprinting in combination appear as microprinting of whole characters of the plurality of characters when viewed with transmitted light.

Abstract: A security system for an article of manufacture includes one or more first planchettes and one or more second planchettes included in the article. The first planchettes luminesce under a first frequency of light and the second planchettes luminesce under a second frequency of light with at least one of three characteristics. First, the first frequency is different from the second frequency, the first planchettes do not luminesce under the second frequency of light, and the second planchettes do not luminesce under the first frequency of light. Second, the first planchettes luminesce at a first color under the first frequency of light and the second planchettes luminesce at a second color different from the first color under the second frequency of light. Third, the first planchettes reflect a first pattern under the first frequency of light and the second planchettes reflect a second pattern under the second frequency of light.

Abstract: 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 second symbol are not distinguishably visible, when viewed with transmitted light.

Abstract: Examples are directed toward a substrate offset printed with front side markings on a first side and back side markings on a second side. The front side markings and the back side markings have dimensions in a micrometer range. The front side when viewed with reflected light comprises first portions of a plurality of characters. The back side when viewed with reflected light comprises second portions of the plurality of characters. The first portions and the second portions are printed, when viewed with transmitted light, to show the plurality of characters as whole characters having dimensions in the micrometer range.

Abstract: A substrate is printed with front side and back side markings. The front side when viewed with reflected light includes: a first marking printed with a first gradient of two colors; a second marking printed with a second gradient of two colors; a first symbol printed with a third gradient of two colors; a second symbol printed with a fourth gradient of two colors; a third symbol printed with a fifth gradient of two colors; and a fourth symbol printed with a sixth gradient of two colors. The back side when viewed with reflected light includes: a third marking printed with the fourth gradient; a fourth marking printed with the third gradient; a fifth symbol printed with the second gradient; a sixth symbol printed with the first gradient; a seventh symbol printed with the sixth gradient; and an eighth symbol printed with the fifth gradient.

Abstract: This application relates generally systems and methods for interrupting counterfeiting workflows, and more specifically to methods for adequately concealing aspects of printer configuration, such as number of plates used to print a document or a setup of inks and split fountains. It is therefore possible to obscure the individual plate images and application of ink to those plate images, thereby impeding accurate redrawing of security artwork.

Abstract: This application relates generally systems and methods for interrupting counterfeiting workflows, and more specifically to methods for adequately concealing aspects of printer configuration, such as number of plates used to print a document or a setup of inks and split fountains. It is therefore possible to obscure the individual plate images and application of ink to those plate images, thereby impeding accurate redrawing of security artwork.