Apparatus for stretching plasticizing and gathering a tow of fil

Details Apparatus for stretching plasticizing and gathering a tow of fil Apparatus for stretching plasticizing and gathering a tow of fil

1994-11-03

1997-01-07

Falik, Andy

Textiles: manufacturing

Thread finishing

Surface modification of running length

28282, D02J 122, D02J 118

Patent

active

055904491

ABSTRACT:
An apparatus for processing one or more tows of filamentary filter material for tobacco smoke between one or more bales and the inlet of a filter rod making machine defines for each tow an elongated path having a substantially U-shaped or V-shaped part. Successive increments of the tow are stretched at least while advancing downwardly along one one leg of the U-shaped or V-shaped part of the path, and successive increments of the tow are gathered while advancing upwardly along the other leg of the U-shaped or V-shaped part of the path. A unit which serves to spray a plasticizing agent against the filaments of the tow is adjacent the substantially horizontal portion between the lower ends of the legs of the U-shaped part or is adjacent the lower region of the other leg of the V-shaped part of the path. The length of the one leg of the U-shaped or the V-shaped part of the path need not exceed 1200 mm, and the maximum width of the tow need not exceed 150 mm.

REFERENCES:
patent: 3255506 (1966-06-01), Fritz
patent: 3317965 (1967-05-01), Murakami
patent: 3817211 (1974-06-01), Brown et al.
patent: 4259769 (1981-04-01), Greve et al.
patent: 4313974 (1982-02-01), Greve et al.
Defensive Publication No. 665,476 -Official Gazette of Mar. 18, 1969.

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