Method and device for reducing disturbances during paper web for

Details Method and device for reducing disturbances during paper web for Method and device for reducing disturbances during paper web for

1984-05-31

1986-01-21

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

162212, 162216, 162336, 162343, 162344, 162350, 162351, D21F 102

Patent

active

045656037

ABSTRACT:
A method and apparatus for forming a paper web from a fiber suspension are disclosed. These include injecting a fiber suspension stream through a slice opening onto the upper surface of a travelling paper web-forming surface, maintaining that surface free of support for a predetermined distance downstream of the slice opening, maintaining a flexible lip near the upper surface of the web-forming surface for a portion of that predetermined distance, and applying a vacuum to the lower surface of the web-forming surface throughout the predetermined distance. In this manner, both the method and apparatus can produce a paper web and substantially dewater the fiber suspension within the space between the flexible lip and the web-forming suspension and substantially reduce disturbances during formation of the web and throughout the predetermined distance.

REFERENCES:
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patent: 3072180 (1963-01-01), Jodney
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patent: 3972771 (1976-08-01), Notbohm
patent: 4050499 (1977-09-01), Luey et al.
patent: 4125429 (1978-11-01), Hergert et al.
patent: 4141788 (1979-02-01), Justus
patent: 4345970 (1982-08-01), Radvan et al.

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