MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202517047518 A) filed by Boegli-Gravures Sa, Marin-Epagnier, Switzerland, on May 16, for 'method and tool for embossing of biodegradable paper to fabricate cigarette filters.'
Inventor(s) include Boegli, Charles; Dumitru, Gabriel; Sanches, Luis Antonio; Lisauskas, Tadas Lukas; and Jurgutis, Paulius.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "A method for embossing a sheet of substrate, wherein the embossing is realized by providing means of at least a first embossing roller and a second embossing roller configured to emboss first structures and second structures, thereby embossing the sheet of substrate when this passes in a nip formed by the first and second embossing rollers, whereby the embossed sheet of substrate is configured to be used in a manufacturing of cigarette filters, and is further configured to be entirely biodegradable. The method comprises providing a sheet of substrate. The method further comprises any one of the embossing steps in a list comprising: embossing the sheet of substrate with first structures to form crimping lines; embossing the sheet of substrate with second structures to form chimney structures; embossing the sheet of substrate with a combination of first and second structures to form crimping lines and chimney structures respectively. The crimping lines have a first width at a surface level of the sheet of substrate, and a first height or depth measured from the surface level in a first range of 0,1 mm to 0,5 mm, thereby configured to be deformable when used in the manufacturing process of cigarette filters. the chimney structures comprise segments that have a second width at the surface level of the sheet of substrate, in a second range of 0,5 mm to 5,0 mm, and a second height or depth measured from the surface level in a third range of 0,1 mm to 1,5 mm, thereby configured to remain open when used in the manufacturing process of cigarette filters and influence a pressure drop of air in such cigarette filters. Further the sheet of substrate comprises fibers with a cut length in a fourth range of 0,5 mm to 6,0 mm, and with a diameter in a fifth range of 10 m to 500 m, the fibers being entirely biodegradable and randomly distributed to deliver an air permeability. The sheet of substrate's air permeability being configured with filtration capabilities of substances present in a cigarette smoke."
The patent application was internationally filed on Nov. 09, 2023, under International application No.PCT/IB2023/061326.
Disclaimer: Curated by HT Syndication.
