Tobacco filter stock

Details Tobacco filter stock Tobacco filter stock

1990-03-28

1991-11-12

Millin, V.

Tobacco

Smoke separator or treater

Having a polymer

493 42, 493 50, 428370, 428394, 428400, A24D 302, A24D 306, B32B 300, D02G 300

Patent

active

050639455

ABSTRACT:
A tobacco filter stock capable of being molded into a filter only be entanglement of filaments with one another without any adhesion means, whereby the resulting filter has a suitable hardness and a superior whiteness. A tobacco filter and a production process thereof are provided, whereby the tobacco filter stock comprises a ton of crystalline polyolefin filaments, preferably crystalline polypropylene filaments, having a single filament denier of 1 to 6 d/f, a total denier of 30,000 to 60,000 D 40 to 60 crimps/25 mm filament, a crimp elastic modulus of 2.5 to 5.0, a frictional coefficient between filaments of 0.20 to 0.37 and a height ratio (height/width) of 0.01 to 0.1.

REFERENCES:
patent: 4546040 (1985-10-01), Knotek et al.

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