A sanitary includes a fluid permeable topsheet and a backsheet. The sanitary pad being made up of a front third, a rear third and a central third arranged between the front and the rear third, as seen in the longitudinal direction, the topsheet being provided with a water-soluble formulation applied in a coated zone arranged along the rear edge and the first and the second longitudinal side edges in the rear third of the sanitary pad forming a boundary in the rear third delimiting an inner rear zone including a coated free topsheet area, the inner rear zone extending along the longitudinal centreline, the coated zone being arranged at a distance from the rear edge and from the first and second longitudinal side edges and covers from 25% of a total surface area of the topsheet in the rear third of the sanitary pad.

A hydro-degradable fluid absorbent product and its componentry, construction, and a method of manufacturing the same. The hydro-degradable fluid absorbent includes a top sheet formed of hydro-degradable layer, wherein the top sheet along with the edges is coated with hydrophobic coating that covers 0-80% of the said sheet and 100% of its edges, an absorbent core, optionally with super absorbent polymer, a bottom sheet including at least one water soluble film characterised by a tie layer which is coated on water-soluble film followed by moisture barrier coat. The method of manufacturing includes assembling a top sheet formed by a hydro-degradable layer, an absorbent core, optionally with super absorbent polymer, the bottom sheet including at least one water soluble film characterized by a tie layer, and bonding the top sheet, the bottom sheet with the absorbent core sandwiched in between by utilizing appropriate industrial bonding techniques.

The flushable removable diaper liner of the present invention is an easy-to-use diaper liner that can be removed from an existing diaper and flushed to enable a solid waste disposal device and method. The present invention makes it easy to dispose of solid waste in a flushing toilet, thus preventing solid waste entry into the landfill waste stream. Further, this invention reduces carbon emissions by preventing the solid waste from going to landfills. The device and method of the present invention can be in the form of an addition to an existing diaper and can be built/manufactured into an existing diaper by adding it to an existing manufacturing process.

Sanitary pads can be made flushable by means of perforation and stress concentrations in the layers to aid ripping before they a flushed into the sewer system, allowing absorbent materials to disperse instead expanding inside the pad and causing sewer blockage.