Patent ID: 9648751
Date: 2017-05-09
CPC Classifications: B32B,B41M,D21H,H05K,Y10T

Claim:
1. A method for producing a sheet comprising at least one electroconductive layer, said sheet comprising a substrate, wherein at least one side of the substrate is covered at least partially with a layer or several superimposed layers comprising the electroconductive layer, the method comprising the steps of: a/ preparing or providing a multi-layer structure comprising at least a plastic film, an anti-adhesive coating, and a base layer, with the anti-adhesive coating inserted between a side of the plastic film and the base layer; b/ applying an adhesive to at least one of (i) a side of the substrate and (ii) a side of the multi-layer structure located opposite to the plastic film, and applying said side of the substrate against said side of the multi-layer structure, so as to cross-laminate the multi-layer structure and the substrate; c/ removing the plastic film and the anti-adhesive coating from the base layer; and d/ covering the base layer with an electroconductive layer by printing the base layer with at least one ink having electrical properties, wherein the base layer is a printable layer having a binder base, wherein a ratio of the binder is greater than 15% in dry weight relative to the total dry matter weight of the base layer, then subjecting the printed sheet to an annealing heat treatment so as to form a layer of electroconductive ink, wherein step d/ is repeated at least once, and wherein each step d/ which follows another step d/ is separated from the other step d/ by an intermediary step of letting the sheet rest so as to substantially recover an initial humidity rate of the sheet.