Air lay-down process for producing uniform lightweight webs from

Details Air lay-down process for producing uniform lightweight webs from Air lay-down process for producing uniform lightweight webs from

1975-12-01

1978-05-16

Newton, Dorsey

Textiles: fiber preparation

Assembling

Web forming

19 89, D04H 100

Patent

active

040890864

ABSTRACT:
Process is disclosed which is suitable for high speed production of uniform, lightweight webs by air-laydown of textile fibers. A toothed disperser roll doffs the fibers into an air stream of high uniform velocity and low turbulence to form a thin fiber layer from which the fibers are deposited in web form on a moving screen. A curved disperser plate, shrouds a portion of the disperser roll up to the point of fiber doffing. By using a disperser plate with a rough surface, preferably one having lateral grooves, web uniformity is remarkably improved.

REFERENCES:
patent: 1705433 (1929-03-01), Wild et al.
patent: 2648876 (1953-08-01), Phillips et al.
patent: 3036343 (1962-05-01), Strang
patent: 3268954 (1966-08-01), Joa
patent: 3797074 (1974-03-01), Zafiroglu

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