Method for pressing bagasse webs

Details Method for pressing bagasse webs Method for pressing bagasse webs

1975-05-06

1978-04-25

Fisher, Richard V.

Paper making and fiber liberation

Processes and products

Running or indefinite length work forming and/or treating...

162205, 162206, 162305, 162360R, D21F 304, D21F 306

Patent

active

040861317

ABSTRACT:
A method and mechanism for forming a continuous traveling web from bagasse fibers including forming a web between a pair of looped traveling wires to dewater from both sides of the formed web, lifting the formed web off of one of the wires and immediately passing the web through a first press nip sandwiched between two press felts with the web continually being supported between the forming wire and first nip, carrying the web on the upper side of one of the felts to a second nip and passing the web between two felts in the second nip, bringing the web to a dryness of at least 30% in the first two double felted nips, transferring the web onto a plain roll and passing it through third and fourth nips on the plain roll with felts outwardly of the web and removing the web from the plain roll to transfer it to a dryer section. Pressure is applied to the bagasse web in the range of 200 to 250 pli in the first nip, 300 to 350 pli in the second nip, 350 to 400 pli in the third nip, and in excess of 500 pli in the fourth nip.

REFERENCES:
patent: 2209757 (1940-07-01), Berry
patent: 2694348 (1954-11-01), Beachler
patent: 3013932 (1961-12-01), Hinrichs et al.
patent: 3573161 (1971-03-01), Notbohm
patent: 3797384 (1974-03-01), Hoff
patent: 3861996 (1975-01-01), Dorfel

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