Cigarette filter tow and method of manufacture

Details Cigarette filter tow and method of manufacture Cigarette filter tow and method of manufacture

A - Human Necessities

24

D

A24D 3/02 (2006.01) D04H 1/54 (2006.01) D04H 1/56 (2006.01)

Patent

CA 2145634

A meltblown tow suitable for manufacturing cigarette filters or filter rods is prepared by drawing a meltblown web (10) having longitudinal bend lines (12) under thermal conditions to impart micropleats along the bend lines. Preferably the drawn and heated tow is passed through an electric field to impart an electrostatic charge to the tow fibers.

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