Methods for forming fibrous webs

Details Methods for forming fibrous webs Methods for forming fibrous webs

1979-10-31

1981-06-30

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Projecting particles in a moving gas stream

19 89, D04H 100

Patent

active

042762480

ABSTRACT:
This invention relates to methods for forming a nonwoven fibrous web on a foraminous forming surface moving at a velocity in excess of about 500 feet per minute. In forming satisfactory uniform webs, the fibers are conveyed to the forming surface in a gaseous stream whereby the relative surface-to-fiber velocity along the moving surface is maintained within a critical ratio relative to the fiber velocity normal to the moving surface.

REFERENCES:
patent: 2969104 (1961-01-01), Schubert et al.
patent: 3834869 (1974-09-01), Ancelle et al.
patent: 4004323 (1977-01-01), Gotchel et al.
patent: 4081501 (1978-03-01), Muther

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