Apparatus for making a nonwoven web

Details Apparatus for making a nonwoven web Apparatus for making a nonwoven web

1993-06-15

1994-11-08

Crowder, Clifford D.

Textiles: fiber preparation

Assembling

Web forming

19307, D01G 2500, D01G 2700

Patent

active

053614518

ABSTRACT:
To make a bulky nonwoven web of low density and high uniformity with an apparatus comprising a toothed opening roller rotatable at a sufficient speed to throw off a stream of fibers centrifugally and deposit them on a revolving air-permeable collecting surface member which has a fiber-receiving portion and a suction box having an opening underneath this portion, a guide roller is spaced vertically from the fiber-receiving portion. The guide roller is rotated in a direction opposite to that of the opening roller and has a leading peripheral surface portion facing the opening roller and projecting into the stream of fibers to deflect a part of the fibers, and a trailing peripheral portion constituting a suction zone facing the fiber-receiving portion. A guide wall in the suction box opening controls the air stream sucked through the fiber-receiving portion in the direction of the movement of the collecting surface member.

REFERENCES:
patent: 3481005 (1969-12-01), Owens et al.
patent: 3766607 (1973-10-01), Jende et al.
patent: 3787930 (1974-01-01), Allen
patent: 3973291 (1976-08-01), Kolbach
patent: 4662032 (1987-05-01), Thorbjornsson

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