Air nozzle for use in production of nonwoven fabric

Details Air nozzle for use in production of nonwoven fabric Air nozzle for use in production of nonwoven fabric

1993-03-26

1994-07-05

Hail, III, Joseph J.

Advancing material of indeterminate length

By fluid current

And web storage

28271, 28273, 57350, 406193, B65H 2014, D01G 2500

Patent

active

053260090

ABSTRACT:
An air nozzle for use in the production of nonwoven fabric that is adapted to receive spun filaments from a spinning nozzle and feed the filaments in an air jet into a receiver. The air nozzle is directed to the prevention of any abrasion of the inner surface of the nozzle body by an additive, such as titanium white, contained in filaments, and thus to the prevention of any defects in the nonwoven fabric. The inner surface of a nozzle body for guiding filaments is formed using a ceramic material to protect that surface. The nozzle body has a conical passage whose diameter gradually decreases from an inlet for receiving the filaments from the spinning nozzle, and a straight passage continuing from the conical passage and extending with a constant diameter, at least part of the inner surface of the conical passage and/or the straight passage being formed as a ceramic surface.

REFERENCES:
patent: 3080134 (1963-03-01), England et al.
patent: 3080135 (1963-03-01), Steijn
patent: 3086722 (1963-04-01), Altice et al.
patent: 3576284 (1971-04-01), Fellous
patent: 3655862 (1972-04-01), Dorschner et al.
patent: 3863309 (1975-02-01), Price
patent: 4095320 (1978-06-01), Polney
patent: 4148116 (1979-04-01), Price
patent: 4187593 (1980-02-01), Price
patent: 4282637 (1981-08-01), Mosseri et al.
patent: 4295329 (1981-10-01), Windley

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