The present invention relates to a sanitary product (100) comprising a back sheet (102), having an outer surface (130) and an inner surface (120), a core (104) and a front sheet (106) joined with a joining periphery (108) in a sandwich structure with the core ( 104) fully comprised within the joining periphery (108). The core (104) is arranged between the back sheet (102) and the front sheet (106) with the inner surface (120) of the back sheet (102) facing the core (104). The sanitary product (100) is configured with a long direction (110), a perpendicular short direction (112) and a product periphery (114) wherein the back sheet (102) is configured with a printed circuit (122) on the inner surface (120), which printed circuit (122) comprises a connector (124) configured with a sensor (128), a stiffener (132) arranged on the outer surface (130) opposite the connector (124) and two through-going incisions (140) in the long direction (110). The joining periphery (108) encircles a smaller area than the product periphery (114) and is comprised within the product periphery (114 ), and the connector (124 ) and the two through-going incisions (140) are outside the joining periphery (108). The invention relates to the sanitary product (100), a fabrication plan (300) therefore, a method (400) for producing thereof and a back sheet supply ( 200) therefore.
