PRODUCTION OF PACKAGING CLOTH MATERIAL Russian patent published in 2023 - IPC D04H1/54 

FIELD: packaging material.

SUBSTANCE: invention is related to a device (100) and a method (400) for producing a sheet of packaging material for a packaged snuff product for oral use. The fabric is a saliva permeable nonwoven fabric containing fibres, wherein from 0 to 95% of the fibres are of the first type and from 5 to 100% of the second type, the first type fibres are cellulose-based staple fibres and the second type fibres are thermoplastic fibres that melt and/or soften at least at the surface. The device comprises a carding unit (110) for carding fibres to form a pre-web, an air-flow binding unit (130) for binding the preliminary sheet by at least partially melting and/or softening fibres of the second type to form the sheet, and a calendering unit (140) for surface treatment of the fabric.

EFFECT: invention makes it possible to create a durable and flexible packaging material for packaged snuff products for oral use.

16 cl, 4 dwg