MUMBAI, India, Nov. 14 -- Intellectual Property India has published a patent application (202441036353 A) filed by K. Ramakrishnan College Of Engineering, Trichy, Tamil Nadu, on May 8, 2024, for 'biodegradable agave sisalana sanitary pads.'

Inventor(s) include Deepashree K; Rohith Rishan M; P Charu Prabha; Charumathi J; Dharshini S; Dr. T. Muruganantham; Mr. N. R. Nagarajan; and Mr. R. Balamurugan.

The application for the patent was published on Nov. 14, under issue no. 46/2025.

According to the abstract released by the Intellectual Property India: "The present invention discloses a preparation method of biodegradable agave sisalana sanitary pads for controlling the usage of synthetic napkins to avoid the irritation/pollution/health problems. The sanitary pads comprising the layers of a top thin layer is having the mixture of sisal and cotton material for acting as the antiseptic agent. The absorbent core layer is thicker than the top layer which is located at the below of top layer and configured to absorb the mensural fluid. The acquisition layer is positioned in between the top and absorbent layer which is configured to absorb the fluid. The secondary layer comprises the cotton and agave mixer cloth which is configured to spread the mensural fluid in the entire pad in an even distribution manner. The back layer is act as the waterproof resistant which is avoiding the leakage of the stain and also allowing air to circulate for breathable to avoid some rashes and irritation in the skin. The disposal baggage can be inserted within a back layer for disposing of the pads in the dustbin. The pair of wings is provided flap to fold and attach with the underwear. The adhesive layer or bottom layer is configured to attach and stuck with the underwear and it is attached to the back layer of the sanitary pads with disposal baggage. The present invention will provide an alternative solution for the usage of synthetic pads."

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