| CPC B42D 25/351 (2014.10) [B41F 11/02 (2013.01); B41M 3/14 (2013.01); B42D 25/29 (2014.10); B42D 25/373 (2014.10); B42D 25/378 (2014.10); B42D 25/387 (2014.10); B42D 25/41 (2014.10); C09D 11/101 (2013.01); C09D 11/52 (2013.01); B42D 25/324 (2014.10); B42D 25/328 (2014.10); B42D 25/355 (2014.10); B42D 25/364 (2014.10); Y10T 428/24802 (2015.01)] | 14 Claims |

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1. A method of producing a plurality of banknotes including:
providing a substrate, in the form of a web, to a print press including a plurality of print units of the same print process type, wherein the web will pass through each of the plurality of print units, and at least part of the web is printed in a print run, wherein the substrate is a film substrate with polymeric outer surfaces, and the film substrate has a thickness of 70 microns to 110 microns;
printing a plurality of print layers on to the substrate at the plurality of print units, wherein at least one of the plurality of print layers is an indicia layer and at least another one of the plurality of print layers is a tactile layer,
wherein the tactile layer is a layer including an ink having tactile particles, and wherein the tactile layer is printed over the indicia layer, such that the plurality of banknotes are formed by the plurality of print layers,
wherein the indicia layer, or a further indicia layer, includes a design element and the tactile layer is an enhanced tactility layer, or includes regions of enhanced tactility, which is transparent or translucent and has at least a first enhanced tactility area overlapping/overlying the design element, such that the design element appears to have tactility due to the first enhanced tactility area, the design element and the first enhanced tactility area together forming a security feature, and
wherein the tactile layer is conductive laver.
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