MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202641042763 A) filed by Paavai Engineering College, Namakkal, Tamil Nadu, on April 2, for 'production of tea bag paper from bagasse.'
Inventor(s) include Dr. Gopi K; Dr. Raja G; Dr. Dhanabalan N; Dr. Vijaykumar E; Dr. Jayakaran P; Dr. Ellamparuthy G; Dr. Balaganesh; Swathi G; Preetha M; Mukesh. V; and Balaji. R.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a method for production of tea bag paper from sugarcane bagasse through an efficient preservation and processing technique. Bagasse is initially washed to remove residual sugars and impurities, followed by cutting and chemical digestion under pressure to soften the fibers. The digested material is dried at approximately 100 C to remove moisture, enabling long-term storage without microbial degradation, fermentation, or odor formation. The stored bagasse is subsequently screened and subjected to alkaline cooking using sodium carbonate and sodium hydroxide, followed by bleaching with hydrogen peroxide to obtain cellulose pulp. The pulp is then formed into paper sheets with the addition of starch to improve bonding strength. The invention ensures sustainable utilization of agricultural waste, provides year-round availability of raw material, and produces paper suitable for tea bag applications."
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