Abstract: The invention concerns a cushioning for seating or a backrest of a motor vehicle seat having a heating layer with an electric circuit made from conductive ink. The circuit has two buses extending longitudinally, the buses are connected together by a plurality of printed microcircuits shaped so as to form resistances capable of heating the cushioning. The cushioning also includes buses made from a first ink and microcircuits made from a second ink, the first ink having a higher intrinsic conductivity than that of the second ink, or the bus and microcircuits are made from the same ink, the ink being deposited more thickly for the buses than for the microcircuits, such that the buses provide minimized electrical resistance to the flow of current.

Abstract: The invention concerns a cushioning for seating or a backrest of a motor vehicle seat having a heating layer with an electric circuit made from conductive ink. The circuit has two buses extending longitudinally, the buses are connected together by a plurality of printed microcircuits shaped so as to form resistances capable of heating the cushioning. The cushioning also includes buses made from a first ink and microcircuits made from a second ink, the first ink having a higher intrinsic conductivity than that of the second ink, or the bus and microcircuits are made from the same ink, the ink being deposited more thickly for the buses than for the microcircuits, such that the buses provide minimized electrical resistance to the flow of current.

Abstract: The invention is motor vehicle cushioning having a cushion and a flexible layer for detecting the presence of an occupant in the seat. The cushioning includes a cap covering the cushion, the cap is mounted on the cushion, covering the layer. The layer is made from an elastically stretchable sheet on which an electric circuit made from conductive ink is printed, the layer being separate from the cap and glued, at least partially, by the underside of the sheet, to the cushion, so as to stretch when the cushion is deformed upon receiving an occupant, and to consequently stretch the circuit in such a way as to increase the electrical resistance of same.