A security-enhanced document includes a substrate and variable indicia comprising ink having a signal. The variable indicia is of a specific type and is applied to the substrate using a specific application technique. At least one other printed portion, which is a back of the document, has background ink noise, and the type of ink of the back of the document is of the same type of ink applied to the substrate using the same application technique as the ink of the variable indicia. The document also includes a scratch-off-coating applied over the variable indicia. The document has a signal-to-noise ratio of the ink of the variable indicia relative to the background ink noise of the back of the document that is not appreciable, thereby making the variable indicia unreadable with reference to the back of the document when the scratch-off-coating remains intact.

A lottery ticket is printed on a substrate sheet material having a front surface with lottery game indicia printed thereon and a removable covering material, typically scratch-off material, covering the lottery game indicia which is removable by a player to expose the game indicia for playing the game and other game information printed on the substrate sheet material where at least part of the substrate sheet material is formed of a translucent synthetic material to enable viewing through the part by the player.

This invention is in the field of greeting cards, social expression and entertainment products in combination with instant scratch-off games, more particularly a greeting card or eCard with a scratch off game where the person wins something; in this case a pre-selected or non pre-selected gift or a surprise written message from the person who gave or sent the receiver the card or eCard. For many years paper greeting cards and eCards containing text sentiment and associated artwork have been widely used for celebratory occasions. Additionally, for decades Scratch-off instant-win tickets and online scratch off games have been enjoyed with immense popularity. This is a combination of both. The giver of the card can pre-select the gift they want to give the receiver, leave the gift a surprise or pre-select a message they want say. They receiver scratches the card to reveal the gift or message from the giver.

A lottery ticket is printed on a substrate sheet material having a front surface with lottery game indicia printed thereon and a removable covering material, typically scratch-off material, covering the lottery game indicia which is removable by a player to expose the game indicia for playing the game and other game information printed on the substrate sheet material where at least part of the substrate sheet material is formed of a translucent synthetic material to enable viewing through the part by the player. In order to allow the ticket to be dispensed in a row of the tickets from a dispensing machine with an optical sensor, a patch of an opaque or semi-opaque material is applied onto the substrate at a location to cooperate with the sensor while it is operating to detect ticket location.

Herein is described a scratch-off structure comprising the following layers in order: a substrate having a first layer showing information thereon, a second layer comprising a polymeric film and being substantially transparent; a third layer comprising a transparent electrostatic ink; a fourth layer, wherein the fourth layer is coloured. Methods for making scratch-off structures and collections of scratch-off structures are also described.

A printing method or system for making a security-enhanced scratch-off document and the document so made are disclosed. The security-enhanced document includes a substrate, variable indicia, at least one other printed portion having background noise, and a scratch-off-coating layer applied over the variable indicia to maintain the variable indicia unreadable until the scratch-off-coating is removed by being scratched off. The variable indicia includes ink having a signal-to-noise ratio relative to the background ink noise of the document's at least one other printed portion, such that the variable indicia are unreadable with reference to the at least one other printed portion when the scratch-off-coating remains intact. Additionally, digitally imaging countermeasures to unassisted and assisted mechanical SOC lift are also disclosed. These methods and systems enhance the overall appearance of the ticket as well as potentially reduce the time and setup costs between print runs.

A scratch-off lottery ticket and associated production method are provided wherein a primer material is applied as a dried layer to a front face of a ticket substrate. Game play indicia is printed on the primer layer in a designated game play area, and a scratch-off layer is applied over the game play indicia. The primer layer includes a particulate luminescent material homogeneously dispersed throughout, wherein the particulate luminescent material has a particle size and additive amount relative to the primer layer such that the particulate luminescent material does not add processing or material drying time to application of the primer layer. Fraudulent attempts to remove the scratch-off layer to reveal the underlying play indicia are rendered optically apparent by luminescence of the particulate luminescent material upon subsequent excitation of the play area with an excitation source.

A computer-implemented method and system are provided for enabling digital imaging of both secure and non-secure areas of instant lottery tickets on demand across a geographically diverse network. Instant lottery tickets produced with this system accommodate smaller volume print runs, process color, and a greater level of customization.

A method for producing scratch-off lottery tickets in a high speed printing line is provided, wherein the printing line includes one or more inkjet printing machines that print lottery tickets on a continuously running paper stock. One or more primer layers are applied to a surface of the paper stock in a defined game play area on each lottery ticket. With the inkjet printing machines game play indicia is printed over the primer layers in the game play area on each lottery ticket at a resolution of at least 600 dpi. The running paper stock is conveyed through the inkjet printing machines at a rate of at least 950 ft./min. The ink jet printing machines use a specially formulated dye-based ink.

A solution for concealing confidential information that is printed at the point of sale in a game of chance utilizing a more common type printer designed for printing on a standard grade and biodegradable direct thermal paper. This system can print and cut each individual ticket in variable lengths. The unique and innovative concept of this new system allows a second and separate biodegradable substrate to be collated in a continuous stream over top of the printed ribbon before it is cut away and delivered into the presenter. The second substrate contains a strip of a specially formulated adhesive and is adhered to the top surface of the printed ribbon as the two substrates join together while passing through mechanical nip rollers. The confidential printed information is now covered and the combined substrates are cut and delivered as one ticket unit. The ticket information is revealed by easily peeling away the adhered top layer.